From 243d9a15edd910136313a7a9fa7d7f24b494e169 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 8 Mar 2023 08:22:12 +0100 Subject: Adding upstream version 11.3.3. Signed-off-by: Daniel Baumann --- CHANGELOG.md | 33 + LICENSE | 2 +- docs/search.js | 2 +- docs/sqlglot.html | 2 +- docs/sqlglot/dataframe/sql.html | 46 +- docs/sqlglot/dialects/bigquery.html | 1324 +-- docs/sqlglot/dialects/clickhouse.html | 489 +- docs/sqlglot/dialects/databricks.html | 2 + docs/sqlglot/dialects/dialect.html | 138 +- docs/sqlglot/dialects/drill.html | 2 + docs/sqlglot/dialects/duckdb.html | 754 +- docs/sqlglot/dialects/hive.html | 1470 +-- docs/sqlglot/dialects/mysql.html | 2805 ++--- docs/sqlglot/dialects/oracle.html | 633 +- docs/sqlglot/dialects/postgres.html | 1004 +- docs/sqlglot/dialects/presto.html | 2 + docs/sqlglot/dialects/redshift.html | 595 +- docs/sqlglot/dialects/snowflake.html | 1778 ++-- docs/sqlglot/dialects/spark.html | 2 + docs/sqlglot/dialects/sqlite.html | 466 +- docs/sqlglot/dialects/starrocks.html | 2 + docs/sqlglot/dialects/tableau.html | 2 + docs/sqlglot/dialects/teradata.html | 225 +- docs/sqlglot/dialects/trino.html | 2 + docs/sqlglot/dialects/tsql.html | 1980 ++-- docs/sqlglot/executor/python.html | 2 + docs/sqlglot/expressions.html | 14188 ++++++++++++------------ docs/sqlglot/generator.html | 10350 +++++++++--------- docs/sqlglot/lineage.html | 2 +- docs/sqlglot/optimizer/annotate_types.html | 1418 +-- docs/sqlglot/optimizer/optimizer.html | 2 +- docs/sqlglot/parser.html | 15386 ++++++++++++++------------- sqlglot/__init__.py | 2 +- sqlglot/dialects/bigquery.py | 2 + sqlglot/dialects/dialect.py | 5 + sqlglot/dialects/duckdb.py | 5 +- sqlglot/dialects/hive.py | 2 + sqlglot/dialects/mysql.py | 4 +- sqlglot/dialects/postgres.py | 3 + sqlglot/dialects/redshift.py | 1 + sqlglot/dialects/snowflake.py | 22 +- sqlglot/dialects/sqlite.py | 14 +- sqlglot/dialects/teradata.py | 7 +- sqlglot/dialects/tsql.py | 8 +- sqlglot/expressions.py | 32 +- sqlglot/generator.py | 33 +- sqlglot/optimizer/annotate_types.py | 9 +- sqlglot/parser.py | 118 +- sqlglot/tokens.py | 8 +- tests/dialects/test_bigquery.py | 17 + tests/dialects/test_dialect.py | 1 + tests/dialects/test_duckdb.py | 34 + tests/dialects/test_hive.py | 26 +- tests/dialects/test_mysql.py | 1 + tests/dialects/test_postgres.py | 8 + tests/dialects/test_redshift.py | 6 + tests/dialects/test_snowflake.py | 88 +- tests/dialects/test_sqlite.py | 7 + tests/fixtures/identity.sql | 21 +- tests/test_build.py | 6 + tests/test_optimizer.py | 5 + tests/test_transpile.py | 8 +- 62 files changed, 28339 insertions(+), 27272 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index dc5337f..a45c9fd 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,6 +1,39 @@ Changelog ========= +v11.3.0 +------ + +Changes: + +- Breaking/Improvement: Fixed transpilation of the division ("/") operator, because some dialects do integer division while others do float division. For example, "a / b" will now be transpiled to "CAST(a AS DOUBLE PRECISION) / b" for Snowflake -> Postgres, and to "CAST(a / b AS INT)" for Postgres -> Snowflake. + +- New: Added support for the COMMENT ON statement. + +- New: Added support for old (+) JOIN syntax (Oracle). + +- New: Added "root" helper method on Expression. + +- New: Added "meta" property on Expression. + +- Improvement: Refactored parsing of ALTER TABLE so it's easily extensible. + +- Improvement: Merging subquery to out of scope join bug fixed. + +- Improvement: Tokenize Jinja comments as comments. + +- Improvement: Refactor POST_CREATE and POST_EXPRESSION properties. + +- Improvement: Fix line numbers for strings that contain multi-line comments. + +- Improvement: Fix aliasing for pivot/unpivot expressions. + +- Improvement: Enhance AST diff (https://github.com/tobymao/sqlglot/commit/2093626e798fc12124fdf1f25ea63662f2953966). + +- Improvement: Better python typing. + +- Improvement: Added support for is_star helper on exp.Select. + v11.2.0 ------ diff --git a/LICENSE b/LICENSE index 05dbdae..1218e4a 100644 --- a/LICENSE +++ b/LICENSE @@ -1,6 +1,6 @@ MIT License -Copyright (c) 2022 Toby Mao +Copyright (c) 2023 Toby Mao Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal diff --git a/docs/search.js b/docs/search.js index ac4a22c..2ba8c80 100644 --- a/docs/search.js +++ b/docs/search.js @@ -1,6 +1,6 @@ window.pdocSearch = (function(){ /** elasticlunr - http://weixsong.github.io * Copyright (C) 2017 Oliver Nightingale * Copyright (C) 2017 Wei Song * MIT Licensed */!function(){function e(e){if(null===e||"object"!=typeof e)return e;var t=e.constructor();for(var n in e)e.hasOwnProperty(n)&&(t[n]=e[n]);return t}var t=function(e){var n=new t.Index;return n.pipeline.add(t.trimmer,t.stopWordFilter,t.stemmer),e&&e.call(n,n),n};t.version="0.9.5",lunr=t,t.utils={},t.utils.warn=function(e){return function(t){e.console&&console.warn&&console.warn(t)}}(this),t.utils.toString=function(e){return void 0===e||null===e?"":e.toString()},t.EventEmitter=function(){this.events={}},t.EventEmitter.prototype.addListener=function(){var e=Array.prototype.slice.call(arguments),t=e.pop(),n=e;if("function"!=typeof t)throw new TypeError("last argument must be a function");n.forEach(function(e){this.hasHandler(e)||(this.events[e]=[]),this.events[e].push(t)},this)},t.EventEmitter.prototype.removeListener=function(e,t){if(this.hasHandler(e)){var n=this.events[e].indexOf(t);-1!==n&&(this.events[e].splice(n,1),0==this.events[e].length&&delete this.events[e])}},t.EventEmitter.prototype.emit=function(e){if(this.hasHandler(e)){var t=Array.prototype.slice.call(arguments,1);this.events[e].forEach(function(e){e.apply(void 0,t)},this)}},t.EventEmitter.prototype.hasHandler=function(e){return e in this.events},t.tokenizer=function(e){if(!arguments.length||null===e||void 0===e)return[];if(Array.isArray(e)){var n=e.filter(function(e){return null===e||void 0===e?!1:!0});n=n.map(function(e){return t.utils.toString(e).toLowerCase()});var i=[];return n.forEach(function(e){var n=e.split(t.tokenizer.seperator);i=i.concat(n)},this),i}return e.toString().trim().toLowerCase().split(t.tokenizer.seperator)},t.tokenizer.defaultSeperator=/[\s\-]+/,t.tokenizer.seperator=t.tokenizer.defaultSeperator,t.tokenizer.setSeperator=function(e){null!==e&&void 0!==e&&"object"==typeof e&&(t.tokenizer.seperator=e)},t.tokenizer.resetSeperator=function(){t.tokenizer.seperator=t.tokenizer.defaultSeperator},t.tokenizer.getSeperator=function(){return t.tokenizer.seperator},t.Pipeline=function(){this._queue=[]},t.Pipeline.registeredFunctions={},t.Pipeline.registerFunction=function(e,n){n in t.Pipeline.registeredFunctions&&t.utils.warn("Overwriting existing registered function: "+n),e.label=n,t.Pipeline.registeredFunctions[n]=e},t.Pipeline.getRegisteredFunction=function(e){return e in t.Pipeline.registeredFunctions!=!0?null:t.Pipeline.registeredFunctions[e]},t.Pipeline.warnIfFunctionNotRegistered=function(e){var n=e.label&&e.label in this.registeredFunctions;n||t.utils.warn("Function is not registered with pipeline. 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this.config},t.Configuration.prototype.reset=function(){this.config={}},lunr.SortedSet=function(){this.length=0,this.elements=[]},lunr.SortedSet.load=function(e){var t=new this;return t.elements=e,t.length=e.length,t},lunr.SortedSet.prototype.add=function(){var e,t;for(e=0;e1;){if(r===e)return o;e>r&&(t=o),r>e&&(n=o),i=n-t,o=t+Math.floor(i/2),r=this.elements[o]}return r===e?o:-1},lunr.SortedSet.prototype.locationFor=function(e){for(var t=0,n=this.elements.length,i=n-t,o=t+Math.floor(i/2),r=this.elements[o];i>1;)e>r&&(t=o),r>e&&(n=o),i=n-t,o=t+Math.floor(i/2),r=this.elements[o];return r>e?o:e>r?o+1:void 0},lunr.SortedSet.prototype.intersect=function(e){for(var t=new lunr.SortedSet,n=0,i=0,o=this.length,r=e.length,s=this.elements,u=e.elements;;){if(n>o-1||i>r-1)break;s[n]!==u[i]?s[n]u[i]&&i++:(t.add(s[n]),n++,i++)}return t},lunr.SortedSet.prototype.clone=function(){var e=new lunr.SortedSet;return e.elements=this.toArray(),e.length=e.elements.length,e},lunr.SortedSet.prototype.union=function(e){var t,n,i;this.length>=e.length?(t=this,n=e):(t=e,n=this),i=t.clone();for(var o=0,r=n.toArray();oSQLGlot\n\n

SQLGlot is a no-dependency SQL parser, transpiler, optimizer, and engine. It can be used to format SQL or translate between 19 different dialects like DuckDB, Presto, Spark, Snowflake, and BigQuery. It aims to read a wide variety of SQL inputs and output syntactically correct SQL in the targeted dialects.

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It is a very comprehensive generic SQL parser with a robust test suite. It is also quite performant, while being written purely in Python.

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You can easily customize the parser, analyze queries, traverse expression trees, and programmatically build SQL.

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Syntax errors are highlighted and dialect incompatibilities can warn or raise depending on configurations. However, it should be noted that SQL validation is not SQLGlot\u2019s goal, so some syntax errors may go unnoticed.

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Contributions are very welcome in SQLGlot; read the contribution guide to get started!

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Table of Contents

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Install

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From PyPI:

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pip3 install sqlglot\n
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Or with a local checkout:

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make install\n
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Requirements for development (optional):

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make install-dev\n
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Get in Touch

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We'd love to hear from you. Join our community Slack channel!

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Examples

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Formatting and Transpiling

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Easily translate from one dialect to another. For example, date/time functions vary from dialects and can be hard to deal with:

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\n
import sqlglot\nsqlglot.transpile("SELECT EPOCH_MS(1618088028295)", read="duckdb", write="hive")[0]\n
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'SELECT FROM_UNIXTIME(1618088028295 / 1000)'\n
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SQLGlot can even translate custom time formats:

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import sqlglot\nsqlglot.transpile("SELECT STRFTIME(x, '%y-%-m-%S')", read="duckdb", write="hive")[0]\n
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"SELECT DATE_FORMAT(x, 'yy-M-ss')"\n
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As another example, let's suppose that we want to read in a SQL query that contains a CTE and a cast to REAL, and then transpile it to Spark, which uses backticks for identifiers and FLOAT instead of REAL:

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\n
import sqlglot\n\nsql = """WITH baz AS (SELECT a, c FROM foo WHERE a = 1) SELECT f.a, b.b, baz.c, CAST("b"."a" AS REAL) d FROM foo f JOIN bar b ON f.a = b.a LEFT JOIN baz ON f.a = baz.a"""\nprint(sqlglot.transpile(sql, write="spark", identify=True, pretty=True)[0])\n
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WITH `baz` AS (\n  SELECT\n    `a`,\n    `c`\n  FROM `foo`\n  WHERE\n    `a` = 1\n)\nSELECT\n  `f`.`a`,\n  `b`.`b`,\n  `baz`.`c`,\n  CAST(`b`.`a` AS FLOAT) AS `d`\nFROM `foo` AS `f`\nJOIN `bar` AS `b`\n  ON `f`.`a` = `b`.`a`\nLEFT JOIN `baz`\n  ON `f`.`a` = `baz`.`a`\n
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Comments are also preserved in a best-effort basis when transpiling SQL code:

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\n
sql = """\n/* multi\n   line\n   comment\n*/\nSELECT\n  tbl.cola /* comment 1 */ + tbl.colb /* comment 2 */,\n  CAST(x AS INT), # comment 3\n  y               -- comment 4\nFROM\n  bar /* comment 5 */,\n  tbl #          comment 6\n"""\n\nprint(sqlglot.transpile(sql, read='mysql', pretty=True)[0])\n
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/* multi\n   line\n   comment\n*/\nSELECT\n  tbl.cola /* comment 1 */ + tbl.colb /* comment 2 */,\n  CAST(x AS INT), /* comment 3 */\n  y /* comment 4 */\nFROM bar /* comment 5 */, tbl /*          comment 6 */\n
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Metadata

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You can explore SQL with expression helpers to do things like find columns and tables:

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from sqlglot import parse_one, exp\n\n# print all column references (a and b)\nfor column in parse_one("SELECT a, b + 1 AS c FROM d").find_all(exp.Column):\n    print(column.alias_or_name)\n\n# find all projections in select statements (a and c)\nfor select in parse_one("SELECT a, b + 1 AS c FROM d").find_all(exp.Select):\n    for projection in select.expressions:\n        print(projection.alias_or_name)\n\n# find all tables (x, y, z)\nfor table in parse_one("SELECT * FROM x JOIN y JOIN z").find_all(exp.Table):\n    print(table.name)\n
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Parser Errors

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When the parser detects an error in the syntax, it raises a ParserError:

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import sqlglot\nsqlglot.transpile("SELECT foo( FROM bar")\n
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sqlglot.errors.ParseError: Expecting ). Line 1, Col: 13.\n  select foo( FROM bar\n              ~~~~\n
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Structured syntax errors are accessible for programmatic use:

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import sqlglot\ntry:\n    sqlglot.transpile("SELECT foo( FROM bar")\nexcept sqlglot.errors.ParseError as e:\n    print(e.errors)\n
\n
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\n
[{\n  'description': 'Expecting )',\n  'line': 1,\n  'col': 13,\n  'start_context': 'SELECT foo( ',\n  'highlight': 'FROM',\n  'end_context': ' bar'\n}]\n
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Unsupported Errors

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Presto APPROX_DISTINCT supports the accuracy argument which is not supported in Hive:

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import sqlglot\nsqlglot.transpile("SELECT APPROX_DISTINCT(a, 0.1) FROM foo", read="presto", write="hive")\n
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APPROX_COUNT_DISTINCT does not support accuracy\n'SELECT APPROX_COUNT_DISTINCT(a) FROM foo'\n
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Build and Modify SQL

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SQLGlot supports incrementally building sql expressions:

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\n
from sqlglot import select, condition\n\nwhere = condition("x=1").and_("y=1")\nselect("*").from_("y").where(where).sql()\n
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'SELECT * FROM y WHERE x = 1 AND y = 1'\n
\n
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You can also modify a parsed tree:

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from sqlglot import parse_one\nparse_one("SELECT x FROM y").from_("z").sql()\n
\n
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\n
'SELECT x FROM y, z'\n
\n
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There is also a way to recursively transform the parsed tree by applying a mapping function to each tree node:

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\n
from sqlglot import exp, parse_one\n\nexpression_tree = parse_one("SELECT a FROM x")\n\ndef transformer(node):\n    if isinstance(node, exp.Column) and node.name == "a":\n        return parse_one("FUN(a)")\n    return node\n\ntransformed_tree = expression_tree.transform(transformer)\ntransformed_tree.sql()\n
\n
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'SELECT FUN(a) FROM x'\n
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SQL Optimizer

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SQLGlot can rewrite queries into an \"optimized\" form. It performs a variety of techniques to create a new canonical AST. This AST can be used to standardize queries or provide the foundations for implementing an actual engine. For example:

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\n
import sqlglot\nfrom sqlglot.optimizer import optimize\n\nprint(\n    optimize(\n        sqlglot.parse_one("""\n            SELECT A OR (B OR (C AND D))\n            FROM x\n            WHERE Z = date '2021-01-01' + INTERVAL '1' month OR 1 = 0\n        """),\n        schema={"x": {"A": "INT", "B": "INT", "C": "INT", "D": "INT", "Z": "STRING"}}\n    ).sql(pretty=True)\n)\n
\n
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\n
SELECT\n  (\n    "x"."a" OR "x"."b" OR "x"."c"\n  ) AND (\n    "x"."a" OR "x"."b" OR "x"."d"\n  ) AS "_col_0"\nFROM "x" AS "x"\nWHERE\n  CAST("x"."z" AS DATE) = CAST('2021-02-01' AS DATE)\n
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AST Introspection

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You can see the AST version of the sql by calling repr:

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from sqlglot import parse_one\nprint(repr(parse_one("SELECT a + 1 AS z")))\n
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\n
(SELECT expressions:\n  (ALIAS this:\n    (ADD this:\n      (COLUMN this:\n        (IDENTIFIER this: a, quoted: False)), expression:\n      (LITERAL this: 1, is_string: False)), alias:\n    (IDENTIFIER this: z, quoted: False)))\n
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AST Diff

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SQLGlot can calculate the difference between two expressions and output changes in a form of a sequence of actions needed to transform a source expression into a target one:

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from sqlglot import diff, parse_one\ndiff(parse_one("SELECT a + b, c, d"), parse_one("SELECT c, a - b, d"))\n
\n
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[\n  Remove(expression=(ADD this:\n    (COLUMN this:\n      (IDENTIFIER this: a, quoted: False)), expression:\n    (COLUMN this:\n      (IDENTIFIER this: b, quoted: False)))),\n  Insert(expression=(SUB this:\n    (COLUMN this:\n      (IDENTIFIER this: a, quoted: False)), expression:\n    (COLUMN this:\n      (IDENTIFIER this: b, quoted: False)))),\n  Move(expression=(COLUMN this:\n    (IDENTIFIER this: c, quoted: False))),\n  Keep(source=(IDENTIFIER this: b, quoted: False), target=(IDENTIFIER this: b, quoted: False)),\n  ...\n]\n
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See also: Semantic Diff for SQL.

\n\n

Custom Dialects

\n\n

Dialects can be added by subclassing Dialect:

\n\n
\n
from sqlglot import exp\nfrom sqlglot.dialects.dialect import Dialect\nfrom sqlglot.generator import Generator\nfrom sqlglot.tokens import Tokenizer, TokenType\n\n\nclass Custom(Dialect):\n    class Tokenizer(Tokenizer):\n        QUOTES = ["'", '"']\n        IDENTIFIERS = ["`"]\n\n        KEYWORDS = {\n            **Tokenizer.KEYWORDS,\n            "INT64": TokenType.BIGINT,\n            "FLOAT64": TokenType.DOUBLE,\n        }\n\n    class Generator(Generator):\n        TRANSFORMS = {exp.Array: lambda self, e: f"[{self.expressions(e)}]"}\n\n        TYPE_MAPPING = {\n            exp.DataType.Type.TINYINT: "INT64",\n            exp.DataType.Type.SMALLINT: "INT64",\n            exp.DataType.Type.INT: "INT64",\n            exp.DataType.Type.BIGINT: "INT64",\n            exp.DataType.Type.DECIMAL: "NUMERIC",\n            exp.DataType.Type.FLOAT: "FLOAT64",\n            exp.DataType.Type.DOUBLE: "FLOAT64",\n            exp.DataType.Type.BOOLEAN: "BOOL",\n            exp.DataType.Type.TEXT: "STRING",\n        }\n\nprint(Dialect["custom"])\n
\n
\n\n
<class '__main__.Custom'>\n
\n\n

SQL Execution

\n\n

One can even interpret SQL queries using SQLGlot, where the tables are represented as Python dictionaries. Although the engine is not very fast (it's not supposed to be) and is in a relatively early stage of development, it can be useful for unit testing and running SQL natively across Python objects. Additionally, the foundation can be easily integrated with fast compute kernels (arrow, pandas). Below is an example showcasing the execution of a SELECT expression that involves aggregations and JOINs:

\n\n
\n
from sqlglot.executor import execute\n\ntables = {\n    "sushi": [\n        {"id": 1, "price": 1.0},\n        {"id": 2, "price": 2.0},\n        {"id": 3, "price": 3.0},\n    ],\n    "order_items": [\n        {"sushi_id": 1, "order_id": 1},\n        {"sushi_id": 1, "order_id": 1},\n        {"sushi_id": 2, "order_id": 1},\n        {"sushi_id": 3, "order_id": 2},\n    ],\n    "orders": [\n        {"id": 1, "user_id": 1},\n        {"id": 2, "user_id": 2},\n    ],\n}\n\nexecute(\n    """\n    SELECT\n      o.user_id,\n      SUM(s.price) AS price\n    FROM orders o\n    JOIN order_items i\n      ON o.id = i.order_id\n    JOIN sushi s\n      ON i.sushi_id = s.id\n    GROUP BY o.user_id\n    """,\n    tables=tables\n)\n
\n
\n\n
\n
user_id price\n      1   4.0\n      2   3.0\n
\n
\n\n

See also: Writing a Python SQL engine from scratch.

\n\n

Used By

\n\n\n\n

Documentation

\n\n

SQLGlot uses pdoc to serve its API documentation:

\n\n
make docs-serve\n
\n\n

Run Tests and Lint

\n\n
make check  # Set SKIP_INTEGRATION=1 to skip integration tests\n
\n\n

Benchmarks

\n\n

Benchmarks run on Python 3.10.5 in seconds.

\n\n\n\n\n \n \n \n \n \n \n \n\n\n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n
Querysqlglotsqlfluffsqltreesqlparsemoz_sql_parsersqloxide
tpch0.01308 (1.0)1.60626 (122.7)0.01168 (0.893)0.04958 (3.791)0.08543 (6.531)0.00136 (0.104)
short0.00109 (1.0)0.14134 (129.2)0.00099 (0.906)0.00342 (3.131)0.00652 (5.970)8.76E-5 (0.080)
long0.01399 (1.0)2.12632 (151.9)0.01126 (0.805)0.04410 (3.151)0.06671 (4.767)0.00107 (0.076)
crazy0.03969 (1.0)24.3777 (614.1)0.03917 (0.987)11.7043 (294.8)1.03280 (26.02)0.00625 (0.157)
\n\n

Optional Dependencies

\n\n

SQLGlot uses dateutil to simplify literal timedelta expressions. The optimizer will not simplify expressions like the following if the module cannot be found:

\n\n
\n
x + interval '1' month\n
\n
\n\n
\n"}, "sqlglot.pretty": {"fullname": "sqlglot.pretty", "modulename": "sqlglot", "qualname": "pretty", "kind": "variable", "doc": "

Whether to format generated SQL by default.

\n", "default_value": "False"}, "sqlglot.schema": {"fullname": "sqlglot.schema", "modulename": "sqlglot.schema", "kind": "module", "doc": "

\n"}, "sqlglot.parse": {"fullname": "sqlglot.parse", "modulename": "sqlglot", "qualname": "parse", "kind": "function", "doc": "

Parses the given SQL string into a collection of syntax trees, one per parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to parse.
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • **opts: other sqlglot.parser.Parser options.
  • \n
\n\n
Returns:
\n\n
\n

The resulting syntax tree collection.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parse_one": {"fullname": "sqlglot.parse_one", "modulename": "sqlglot", "qualname": "parse_one", "kind": "function", "doc": "

Parses the given SQL string and returns a syntax tree for the first parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to parse.
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • into: the SQLGlot Expression to parse into.
  • \n
  • **opts: other sqlglot.parser.Parser options.
  • \n
\n\n
Returns:
\n\n
\n

The syntax tree for the first parsed statement.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tinto: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]], NoneType] = None,\t**opts) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transpile": {"fullname": "sqlglot.transpile", "modulename": "sqlglot", "qualname": "transpile", "kind": "function", "doc": "

Parses the given SQL string in accordance with the source dialect and returns a list of SQL strings transformed\nto conform to the target dialect. Each string in the returned list represents a single transformed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to transpile.
  • \n
  • read: the source dialect used to parse the input string (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • write: the target dialect into which the input should be transformed (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • identity: if set to True and if the target dialect is not specified the source dialect will be used as both:\nthe source and the target dialect.
  • \n
  • error_level: the desired error level of the parser.
  • \n
  • **opts: other sqlglot.generator.Generator options.
  • \n
\n\n
Returns:
\n\n
\n

The list of transpiled SQL statements.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\twrite: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tidentity: bool = True,\terror_level: Optional[sqlglot.errors.ErrorLevel] = None,\t**opts) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe": {"fullname": "sqlglot.dataframe", "modulename": "sqlglot.dataframe", "kind": "module", "doc": "

PySpark DataFrame SQL Generator

\n\n

This is a drop-in replacement for the PySpark DataFrame API that will generate SQL instead of executing DataFrame operations directly. This, when combined with the transpiling support in SQLGlot, allows one to write PySpark DataFrame code and execute it on other engines like DuckDB, Presto, Spark, Snowflake, and BigQuery.

\n\n

Currently many of the common operations are covered and more functionality will be added over time. Please open an issue or PR with your feedback or contribution to help influence what should be prioritized next and make sure your use case is properly supported.

\n\n

How to use

\n\n

Instructions

\n\n
    \n
  • Install SQLGlot and that is all that is required to just generate SQL. The examples show generating SQL and then executing that SQL on a specific engine and that will require that engine's client library.
  • \n
  • Find/replace all from pyspark.sql with from sqlglot.dataframe.
  • \n
  • Prior to any spark.read.table or spark.table run sqlglot.schema.add_table('<table_name>', <column_structure>).\n
      \n
    • The column structure can be defined the following ways:\n
        \n
      • Dictionary where the keys are column names and values are string of the Spark SQL type name.\n
          \n
        • Ex: {'cola': 'string', 'colb': 'int'}
        • \n
      • \n
      • PySpark DataFrame StructType similar to when using createDataFrame.\n
          \n
        • Ex: StructType([StructField('cola', StringType()), StructField('colb', IntegerType())])
        • \n
      • \n
      • A string of names and types similar to what is supported in createDataFrame.\n
          \n
        • Ex: cola: STRING, colb: INT
        • \n
      • \n
      • [Not Recommended] A list of string column names without type.\n
          \n
        • Ex: ['cola', 'colb']
        • \n
        • The lack of types may limit functionality in future releases.
        • \n
      • \n
    • \n
    • See Registering Custom Schema for information on how to skip this step if the information is stored externally.
    • \n
  • \n
  • Add .sql(pretty=True) to your final DataFrame command to return a list of sql statements to run that command.\n
      \n
    • In most cases a single SQL statement is returned. Currently the only exception is when caching DataFrames which isn't supported in other dialects.
    • \n
    • Spark is the default output dialect. See dialects for a full list of dialects.
    • \n
    • Ex: .sql(pretty=True, dialect='bigquery')
    • \n
  • \n
\n\n

Examples

\n\n
\n
import sqlglot\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import functions as F\n\nsqlglot.schema.add_table('employee', {\n  'employee_id': 'INT',\n  'fname': 'STRING',\n  'lname': 'STRING',\n  'age': 'INT',\n})  # Register the table structure prior to reading from the table\n\nspark = SparkSession()\n\ndf = (\n    spark\n    .table('employee')\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees")) \n)\n\nprint(df.sql(pretty=True))  # Spark will be the dialect used by default\n
\n
\n\n
SELECT\n  `employee`.`age` AS `age`,\n  COUNT(DISTINCT `employee`.`employee_id`) AS `num_employees`\nFROM `employee` AS `employee`\nGROUP BY\n  `employee`.`age`\n
\n\n

Registering Custom Schema Class

\n\n

The step of adding sqlglot.schema.add_table can be skipped if you have the column structure stored externally like in a file or from an external metadata table. This can be done by writing a class that implements the sqlglot.schema.Schema abstract class and then assigning that class to sqlglot.schema.

\n\n
\n
import sqlglot\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import functions as F\nfrom sqlglot.schema import Schema\n\n\nclass ExternalSchema(Schema):\n  ...\n\nsqlglot.schema = ExternalSchema()\n\nspark = SparkSession()\n\ndf = (\n    spark\n    .table('employee')\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees")) \n)\n\nprint(df.sql(pretty=True))\n
\n
\n\n

Example Implementations

\n\n

Bigquery

\n\n
\n
from google.cloud import bigquery\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import types\nfrom sqlglot.dataframe.sql import functions as F\n\nclient = bigquery.Client()\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees"))\n    .sql(dialect="bigquery")\n)\n\nresult = None\nfor sql in sql_statements:\n  result = client.query(sql)\n\nassert result is not None\nfor row in client.query(result):\n    print(f"Age: {row['age']}, Num Employees: {row['num_employees']}")\n
\n
\n\n

Snowflake

\n\n
\n
import os\n\nimport snowflake.connector\nfrom sqlglot.dataframe.session import SparkSession\nfrom sqlglot.dataframe import types\nfrom sqlglot.dataframe import functions as F\n\nctx = snowflake.connector.connect(\n    user=os.environ["SNOWFLAKE_USER"],\n    password=os.environ["SNOWFLAKE_PASS"],\n    account=os.environ["SNOWFLAKE_ACCOUNT"]\n)\ncs = ctx.cursor()\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("lname")).alias("num_employees"))\n    .sql(dialect="snowflake")\n)\n\ntry:\n    for sql in sql_statements:\n        cs.execute(sql)\n    results = cs.fetchall()\n    for row in results:\n        print(f"Age: {row[0]}, Num Employees: {row[1]}")\nfinally:\n    cs.close()\nctx.close()\n
\n
\n\n

Spark

\n\n
\n
from pyspark.sql.session import SparkSession as PySparkSession\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import types\nfrom sqlglot.dataframe.sql import functions as F\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees"))\n    .sql(dialect="spark")\n)\n\npyspark = PySparkSession.builder.master("local[*]").getOrCreate()\n\ndf = None\nfor sql in sql_statements:\n    df = pyspark.sql(sql)\n\nassert df is not None\ndf.show()\n
\n
\n\n

Unsupportable Operations

\n\n

Any operation that lacks a way to represent it in SQL cannot be supported by this tool. An example of this would be rdd operations. Since the DataFrame API though is mostly modeled around SQL concepts most operations can be supported.

\n"}, "sqlglot.dataframe.sql": {"fullname": "sqlglot.dataframe.sql", "modulename": "sqlglot.dataframe.sql", "kind": "module", "doc": "

\n"}, "sqlglot.dataframe.sql.SparkSession": {"fullname": "sqlglot.dataframe.sql.SparkSession", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.SparkSession.table": {"fullname": "sqlglot.dataframe.sql.SparkSession.table", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.table", "kind": "function", "doc": "

\n", "signature": "(self, tableName: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.SparkSession.createDataFrame": {"fullname": "sqlglot.dataframe.sql.SparkSession.createDataFrame", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.createDataFrame", "kind": "function", "doc": "

\n", "signature": "(\tself,\tdata: Sequence[Union[Dict[str, <MagicMock id='140472806286400'>], List[<MagicMock id='140472806286400'>], Tuple]],\tschema: Optional[<MagicMock id='140472806820784'>] = None,\tsamplingRatio: Optional[float] = None,\tverifySchema: bool = False) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.SparkSession.sql": {"fullname": "sqlglot.dataframe.sql.SparkSession.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.sql", "kind": "function", "doc": "

\n", "signature": "(self, sqlQuery: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame": {"fullname": "sqlglot.dataframe.sql.DataFrame", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrame.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrame.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.__init__", "kind": "function", "doc": "

\n", "signature": "(\tspark: <MagicMock id='140472811025888'>,\texpression: sqlglot.expressions.Select,\tbranch_id: Optional[str] = None,\tsequence_id: Optional[str] = None,\tlast_op: sqlglot.dataframe.sql.operations.Operation = <Operation.INIT: -1>,\tpending_hints: Optional[List[sqlglot.expressions.Expression]] = None,\toutput_expression_container: Optional[<MagicMock id='140472809295296'>] = None,\t**kwargs)"}, "sqlglot.dataframe.sql.DataFrame.sql": {"fullname": "sqlglot.dataframe.sql.DataFrame.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.sql", "kind": "function", "doc": "

\n", "signature": "(self, dialect='spark', optimize=True, **kwargs) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.copy": {"fullname": "sqlglot.dataframe.sql.DataFrame.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.select": {"fullname": "sqlglot.dataframe.sql.DataFrame.select", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.select", "kind": "function", "doc": "

\n", "signature": "(self, *cols, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.alias": {"fullname": "sqlglot.dataframe.sql.DataFrame.alias", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.alias", "kind": "function", "doc": "

\n", "signature": "(self, name: str, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.where": {"fullname": "sqlglot.dataframe.sql.DataFrame.where", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.where", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolumn: Union[sqlglot.dataframe.sql.column.Column, bool],\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.filter": {"fullname": "sqlglot.dataframe.sql.DataFrame.filter", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.filter", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolumn: Union[sqlglot.dataframe.sql.column.Column, bool],\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.groupBy": {"fullname": "sqlglot.dataframe.sql.DataFrame.groupBy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.groupBy", "kind": "function", "doc": "

\n", "signature": "(self, *cols, **kwargs) -> sqlglot.dataframe.sql.group.GroupedData:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.agg": {"fullname": "sqlglot.dataframe.sql.DataFrame.agg", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.agg", "kind": "function", "doc": "

\n", "signature": "(self, *exprs, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.join": {"fullname": "sqlglot.dataframe.sql.DataFrame.join", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.join", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother_df: sqlglot.dataframe.sql.dataframe.DataFrame,\ton: Union[str, List[str], sqlglot.dataframe.sql.column.Column, List[sqlglot.dataframe.sql.column.Column]],\thow: str = 'inner',\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.orderBy": {"fullname": "sqlglot.dataframe.sql.DataFrame.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.orderBy", "kind": "function", "doc": "

This implementation lets any ordered columns take priority over whatever is provided in ascending. Spark\nhas irregular behavior and can result in runtime errors. Users shouldn't be mixing the two anyways so this\nis unlikely to come up.

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column],\tascending: Union[Any, List[Any], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.sort": {"fullname": "sqlglot.dataframe.sql.DataFrame.sort", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.sort", "kind": "function", "doc": "

This implementation lets any ordered columns take priority over whatever is provided in ascending. Spark\nhas irregular behavior and can result in runtime errors. Users shouldn't be mixing the two anyways so this\nis unlikely to come up.

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column],\tascending: Union[Any, List[Any], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.union": {"fullname": "sqlglot.dataframe.sql.DataFrame.union", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.union", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.unionAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.unionAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.unionAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.unionByName": {"fullname": "sqlglot.dataframe.sql.DataFrame.unionByName", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.unionByName", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame,\tallowMissingColumns: bool = False):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.intersect": {"fullname": "sqlglot.dataframe.sql.DataFrame.intersect", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.intersect", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.intersectAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.intersectAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.intersectAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.exceptAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.exceptAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.exceptAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.distinct": {"fullname": "sqlglot.dataframe.sql.DataFrame.distinct", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.distinct", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.dropDuplicates": {"fullname": "sqlglot.dataframe.sql.DataFrame.dropDuplicates", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.dropDuplicates", "kind": "function", "doc": "

\n", "signature": "(self, subset: Optional[List[str]] = None):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.dropna": {"fullname": "sqlglot.dataframe.sql.DataFrame.dropna", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.dropna", "kind": "function", "doc": "

\n", "signature": "(\tself,\thow: str = 'any',\tthresh: Optional[int] = None,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.fillna": {"fullname": "sqlglot.dataframe.sql.DataFrame.fillna", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.fillna", "kind": "function", "doc": "

Functionality Difference: If you provide a value to replace a null and that type conflicts\nwith the type of the column then PySpark will just ignore your replacement.\nThis will try to cast them to be the same in some cases. So they won't always match.\nBest to not mix types so make sure replacement is the same type as the column

\n\n

Possibility for improvement: Use typeof function to get the type of the column\nand check if it matches the type of the value provided. If not then make it null.

\n", "signature": "(\tself,\tvalue: <MagicMock id='140472806747648'>,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.replace": {"fullname": "sqlglot.dataframe.sql.DataFrame.replace", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.replace", "kind": "function", "doc": "

\n", "signature": "(\tself,\tto_replace: Union[bool, int, float, str, List, Dict],\tvalue: Union[bool, int, float, str, List, NoneType] = None,\tsubset: Union[Collection[<MagicMock id='140472804979616'>], <MagicMock id='140472804979616'>, NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.withColumn": {"fullname": "sqlglot.dataframe.sql.DataFrame.withColumn", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.withColumn", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolName: str,\tcol: sqlglot.dataframe.sql.column.Column) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.withColumnRenamed": {"fullname": "sqlglot.dataframe.sql.DataFrame.withColumnRenamed", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.withColumnRenamed", "kind": "function", "doc": "

\n", "signature": "(self, existing: str, new: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.drop": {"fullname": "sqlglot.dataframe.sql.DataFrame.drop", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.drop", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.limit": {"fullname": "sqlglot.dataframe.sql.DataFrame.limit", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.limit", "kind": "function", "doc": "

\n", "signature": "(self, num: int) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.hint": {"fullname": "sqlglot.dataframe.sql.DataFrame.hint", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.hint", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\t*parameters: Union[str, int, NoneType]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.repartition": {"fullname": "sqlglot.dataframe.sql.DataFrame.repartition", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.repartition", "kind": "function", "doc": "

\n", "signature": "(\tself,\tnumPartitions: Union[int, <MagicMock id='140472805135488'>],\t*cols: <MagicMock id='140472805162720'>) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.coalesce": {"fullname": "sqlglot.dataframe.sql.DataFrame.coalesce", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.coalesce", "kind": "function", "doc": "

\n", "signature": "(self, numPartitions: int) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.cache": {"fullname": "sqlglot.dataframe.sql.DataFrame.cache", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.cache", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.persist": {"fullname": "sqlglot.dataframe.sql.DataFrame.persist", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.persist", "kind": "function", "doc": "

Storage Level Options: https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-aux-cache-cache-table.html

\n", "signature": "(\tself,\tstorageLevel: str = 'MEMORY_AND_DISK_SER') -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData": {"fullname": "sqlglot.dataframe.sql.GroupedData", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.GroupedData.__init__": {"fullname": "sqlglot.dataframe.sql.GroupedData.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.__init__", "kind": "function", "doc": "

\n", "signature": "(\tdf: sqlglot.dataframe.sql.dataframe.DataFrame,\tgroup_by_cols: List[sqlglot.dataframe.sql.column.Column],\tlast_op: sqlglot.dataframe.sql.operations.Operation)"}, "sqlglot.dataframe.sql.GroupedData.agg": {"fullname": "sqlglot.dataframe.sql.GroupedData.agg", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.agg", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*exprs: Union[sqlglot.dataframe.sql.column.Column, Dict[str, str]]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.count": {"fullname": "sqlglot.dataframe.sql.GroupedData.count", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.count", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.mean": {"fullname": "sqlglot.dataframe.sql.GroupedData.mean", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.mean", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.avg": {"fullname": "sqlglot.dataframe.sql.GroupedData.avg", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.avg", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.max": {"fullname": "sqlglot.dataframe.sql.GroupedData.max", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.max", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.min": {"fullname": "sqlglot.dataframe.sql.GroupedData.min", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.min", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.sum": {"fullname": "sqlglot.dataframe.sql.GroupedData.sum", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.sum", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.pivot": {"fullname": "sqlglot.dataframe.sql.GroupedData.pivot", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.pivot", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column": {"fullname": "sqlglot.dataframe.sql.Column", "modulename": "sqlglot.dataframe.sql", "qualname": "Column", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.Column.__init__": {"fullname": "sqlglot.dataframe.sql.Column.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.__init__", "kind": "function", "doc": "

\n", "signature": "(\texpression: Union[<MagicMock id='140472807220864'>, sqlglot.expressions.Expression, NoneType])"}, "sqlglot.dataframe.sql.Column.ensure_col": {"fullname": "sqlglot.dataframe.sql.Column.ensure_col", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_col", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tvalue: Union[<MagicMock id='140472805310912'>, sqlglot.expressions.Expression, NoneType]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ensure_cols": {"fullname": "sqlglot.dataframe.sql.Column.ensure_cols", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_cols", "kind": "function", "doc": "

\n", "signature": "(\tcls,\targs: List[Union[<MagicMock id='140472805659008'>, sqlglot.expressions.Expression]]) -> List[sqlglot.dataframe.sql.column.Column]:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.invoke_anonymous_function": {"fullname": "sqlglot.dataframe.sql.Column.invoke_anonymous_function", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.invoke_anonymous_function", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tcolumn: Optional[<MagicMock id='140472805529376'>],\tfunc_name: str,\t*args: Optional[<MagicMock id='140472805471088'>]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.invoke_expression_over_column": {"fullname": "sqlglot.dataframe.sql.Column.invoke_expression_over_column", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.invoke_expression_over_column", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tcolumn: Optional[<MagicMock id='140472805366256'>],\tcallable_expression: Callable,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.binary_op": {"fullname": "sqlglot.dataframe.sql.Column.binary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.binary_op", "kind": "function", "doc": "

\n", "signature": "(\tself,\tklass: Callable,\tother: <MagicMock id='140472805069328'>,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.inverse_binary_op": {"fullname": "sqlglot.dataframe.sql.Column.inverse_binary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.inverse_binary_op", "kind": "function", "doc": "

\n", "signature": "(\tself,\tklass: Callable,\tother: <MagicMock id='140472805078736'>,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.unary_op": {"fullname": "sqlglot.dataframe.sql.Column.unary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.unary_op", "kind": "function", "doc": "

\n", "signature": "(self, klass: Callable, **kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ensure_literal": {"fullname": "sqlglot.dataframe.sql.Column.ensure_literal", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_literal", "kind": "function", "doc": "

\n", "signature": "(cls, value) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.copy": {"fullname": "sqlglot.dataframe.sql.Column.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.copy", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.set_table_name": {"fullname": "sqlglot.dataframe.sql.Column.set_table_name", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.set_table_name", "kind": "function", "doc": "

\n", "signature": "(self, table_name: str, copy=False) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.sql": {"fullname": "sqlglot.dataframe.sql.Column.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.alias": {"fullname": "sqlglot.dataframe.sql.Column.alias", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.alias", "kind": "function", "doc": "

\n", "signature": "(self, name: str) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc": {"fullname": "sqlglot.dataframe.sql.Column.asc", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc": {"fullname": "sqlglot.dataframe.sql.Column.desc", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc_nulls_first": {"fullname": "sqlglot.dataframe.sql.Column.asc_nulls_first", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc_nulls_first", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc_nulls_last": {"fullname": "sqlglot.dataframe.sql.Column.asc_nulls_last", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc_nulls_last", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc_nulls_first": {"fullname": "sqlglot.dataframe.sql.Column.desc_nulls_first", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc_nulls_first", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc_nulls_last": {"fullname": "sqlglot.dataframe.sql.Column.desc_nulls_last", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc_nulls_last", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.when": {"fullname": "sqlglot.dataframe.sql.Column.when", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.when", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcondition: sqlglot.dataframe.sql.column.Column,\tvalue: Any) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.otherwise": {"fullname": "sqlglot.dataframe.sql.Column.otherwise", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.otherwise", "kind": "function", "doc": "

\n", "signature": "(self, value: Any) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isNull": {"fullname": "sqlglot.dataframe.sql.Column.isNull", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isNull", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isNotNull": {"fullname": "sqlglot.dataframe.sql.Column.isNotNull", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isNotNull", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.cast": {"fullname": "sqlglot.dataframe.sql.Column.cast", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.cast", "kind": "function", "doc": "

Functionality Difference: PySpark cast accepts a datatype instance of the datatype class\nSqlglot doesn't currently replicate this class so it only accepts a string

\n", "signature": "(self, dataType: Union[str, sqlglot.dataframe.sql.types.DataType]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.startswith": {"fullname": "sqlglot.dataframe.sql.Column.startswith", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.startswith", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.endswith": {"fullname": "sqlglot.dataframe.sql.Column.endswith", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.endswith", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.rlike": {"fullname": "sqlglot.dataframe.sql.Column.rlike", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.rlike", "kind": "function", "doc": "

\n", "signature": "(self, regexp: str) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.like": {"fullname": "sqlglot.dataframe.sql.Column.like", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.like", "kind": "function", "doc": "

\n", "signature": "(self, other: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ilike": {"fullname": "sqlglot.dataframe.sql.Column.ilike", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ilike", "kind": "function", "doc": "

\n", "signature": "(self, other: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.substr": {"fullname": "sqlglot.dataframe.sql.Column.substr", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.substr", "kind": "function", "doc": "

\n", "signature": "(\tself,\tstartPos: Union[int, sqlglot.dataframe.sql.column.Column],\tlength: Union[int, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isin": {"fullname": "sqlglot.dataframe.sql.Column.isin", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isin", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='140472803821888'>, Iterable[<MagicMock id='140472803821888'>]]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.between": {"fullname": "sqlglot.dataframe.sql.Column.between", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.between", "kind": "function", "doc": "

\n", "signature": "(\tself,\tlowerBound: <MagicMock id='140472803925808'>,\tupperBound: <MagicMock id='140472803947520'>) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.over": {"fullname": "sqlglot.dataframe.sql.Column.over", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.over", "kind": "function", "doc": "

\n", "signature": "(\tself,\twindow: <MagicMock id='140472804005232'>) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.__init__", "kind": "function", "doc": "

\n", "signature": "(df: sqlglot.dataframe.sql.dataframe.DataFrame)"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.drop": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.drop", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.drop", "kind": "function", "doc": "

\n", "signature": "(\tself,\thow: str = 'any',\tthresh: Optional[int] = None,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.fill": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.fill", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.fill", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[int, bool, float, str, Dict[str, Any]],\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.replace": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.replace", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.replace", "kind": "function", "doc": "

\n", "signature": "(\tself,\tto_replace: Union[bool, int, float, str, List, Dict],\tvalue: Union[bool, int, float, str, List, NoneType] = None,\tsubset: Union[str, List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window": {"fullname": "sqlglot.dataframe.sql.Window", "modulename": "sqlglot.dataframe.sql", "qualname": "Window", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.Window.partitionBy": {"fullname": "sqlglot.dataframe.sql.Window.partitionBy", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.partitionBy", "kind": "function", "doc": "

\n", "signature": "(\tcls,\t*cols: Union[<MagicMock id='140472804320848'>, List[<MagicMock id='140472804320848'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.orderBy": {"fullname": "sqlglot.dataframe.sql.Window.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.orderBy", "kind": "function", "doc": "

\n", "signature": "(\tcls,\t*cols: Union[<MagicMock id='140472804438944'>, List[<MagicMock id='140472804438944'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.rowsBetween": {"fullname": "sqlglot.dataframe.sql.Window.rowsBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.rowsBetween", "kind": "function", "doc": "

\n", "signature": "(cls, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.rangeBetween": {"fullname": "sqlglot.dataframe.sql.Window.rangeBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.rangeBetween", "kind": "function", "doc": "

\n", "signature": "(cls, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec": {"fullname": "sqlglot.dataframe.sql.WindowSpec", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.WindowSpec.__init__": {"fullname": "sqlglot.dataframe.sql.WindowSpec.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression = (WINDOW ))"}, "sqlglot.dataframe.sql.WindowSpec.copy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.copy", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.sql": {"fullname": "sqlglot.dataframe.sql.WindowSpec.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.partitionBy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.partitionBy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.partitionBy", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='140472804166576'>, List[<MagicMock id='140472804166576'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.orderBy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.orderBy", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='140472804365008'>, List[<MagicMock id='140472804365008'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.rowsBetween": {"fullname": "sqlglot.dataframe.sql.WindowSpec.rowsBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.rowsBetween", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.rangeBetween": {"fullname": "sqlglot.dataframe.sql.WindowSpec.rangeBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.rangeBetween", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameReader": {"fullname": "sqlglot.dataframe.sql.DataFrameReader", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameReader.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameReader.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader.__init__", "kind": "function", "doc": "

\n", "signature": "(spark: sqlglot.dataframe.sql.session.SparkSession)"}, "sqlglot.dataframe.sql.DataFrameReader.table": {"fullname": "sqlglot.dataframe.sql.DataFrameReader.table", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader.table", "kind": "function", "doc": "

\n", "signature": "(self, tableName: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameWriter.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.__init__", "kind": "function", "doc": "

\n", "signature": "(\tdf: sqlglot.dataframe.sql.dataframe.DataFrame,\tspark: Optional[sqlglot.dataframe.sql.session.SparkSession] = None,\tmode: Optional[str] = None,\tby_name: bool = False)"}, "sqlglot.dataframe.sql.DataFrameWriter.copy": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.sql": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.mode": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.mode", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.mode", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsaveMode: Optional[str]) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.insertInto": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.insertInto", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.insertInto", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttableName: str,\toverwrite: Optional[bool] = None) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.saveAsTable": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.saveAsTable", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.saveAsTable", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\tformat: Optional[str] = None,\tmode: Optional[str] = None):", "funcdef": "def"}, "sqlglot.dialects": {"fullname": "sqlglot.dialects", "modulename": "sqlglot.dialects", "kind": "module", "doc": "

Dialects

\n\n

While there is a SQL standard, most SQL engines support a variation of that standard. This makes it difficult\nto write portable SQL code. SQLGlot bridges all the different variations, called \"dialects\", with an extensible\nSQL transpilation framework.

\n\n

The base sqlglot.dialects.dialect.Dialect class implements a generic dialect that aims to be as universal as possible.

\n\n

Each SQL variation has its own Dialect subclass, extending the corresponding Tokenizer, Parser and Generator\nclasses as needed.

\n\n

Implementing a custom Dialect

\n\n

Consider the following example:

\n\n
\n
from sqlglot import exp\nfrom sqlglot.dialects.dialect import Dialect\nfrom sqlglot.generator import Generator\nfrom sqlglot.tokens import Tokenizer, TokenType\n\n\nclass Custom(Dialect):\n    class Tokenizer(Tokenizer):\n        QUOTES = ["'", '"']\n        IDENTIFIERS = ["`"]\n\n        KEYWORDS = {\n            **Tokenizer.KEYWORDS,\n            "INT64": TokenType.BIGINT,\n            "FLOAT64": TokenType.DOUBLE,\n        }\n\n    class Generator(Generator):\n        TRANSFORMS = {exp.Array: lambda self, e: f"[{self.expressions(e)}]"}\n\n        TYPE_MAPPING = {\n            exp.DataType.Type.TINYINT: "INT64",\n            exp.DataType.Type.SMALLINT: "INT64",\n            exp.DataType.Type.INT: "INT64",\n            exp.DataType.Type.BIGINT: "INT64",\n            exp.DataType.Type.DECIMAL: "NUMERIC",\n            exp.DataType.Type.FLOAT: "FLOAT64",\n            exp.DataType.Type.DOUBLE: "FLOAT64",\n            exp.DataType.Type.BOOLEAN: "BOOL",\n            exp.DataType.Type.TEXT: "STRING",\n        }\n
\n
\n\n

This is a typical example of adding a new dialect implementation in SQLGlot: we specify its identifier and string\ndelimiters, as well as what tokens it uses for its types and how they're associated with SQLGlot types. Since\nthe Expression classes are common for each dialect supported in SQLGlot, we may also need to override the generation\nlogic for some expressions; this is usually done by adding new entries to the TRANSFORMS mapping.

\n\n
\n"}, "sqlglot.dialects.bigquery": {"fullname": "sqlglot.dialects.bigquery", "modulename": "sqlglot.dialects.bigquery", "kind": "module", "doc": "

Supports BigQuery Standard SQL.

\n"}, "sqlglot.dialects.bigquery.BigQuery": {"fullname": "sqlglot.dialects.bigquery.BigQuery", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.bigquery.BigQuery.Tokenizer": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Tokenizer", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.bigquery.BigQuery.Parser": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Parser", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.bigquery.BigQuery.Generator": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.bigquery.BigQuery.Generator.array_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.array_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.array_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Array) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.transaction_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.transaction_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.commit_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.commit_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.commit_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.rollback_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.rollback_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.rollback_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.in_unnest_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.in_unnest_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.in_unnest_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Unnest) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.except_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.except_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.except_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Except) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.intersect_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.intersect_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.intersect_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Intersect) -> str:", "funcdef": "def"}, "sqlglot.dialects.clickhouse": {"fullname": "sqlglot.dialects.clickhouse", "modulename": "sqlglot.dialects.clickhouse", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.clickhouse.ClickHouse": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.clickhouse.ClickHouse.Tokenizer": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Tokenizer", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.clickhouse.ClickHouse.Parser": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Parser", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.clickhouse.ClickHouse.Generator": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Generator", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.clickhouse.ClickHouse.Generator.cte_sql": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Generator.cte_sql", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Generator.cte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CTE) -> str:", "funcdef": "def"}, "sqlglot.dialects.databricks": {"fullname": "sqlglot.dialects.databricks", "modulename": "sqlglot.dialects.databricks", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.databricks.Databricks": {"fullname": "sqlglot.dialects.databricks.Databricks", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.spark.Spark"}, "sqlglot.dialects.databricks.Databricks.Parser": {"fullname": "sqlglot.dialects.databricks.Databricks.Parser", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.spark.Spark.Parser"}, "sqlglot.dialects.databricks.Databricks.Generator": {"fullname": "sqlglot.dialects.databricks.Databricks.Generator", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.spark.Spark.Generator"}, "sqlglot.dialects.databricks.Databricks.Tokenizer": {"fullname": "sqlglot.dialects.databricks.Databricks.Tokenizer", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.spark.Spark.Tokenizer"}, "sqlglot.dialects.dialect": {"fullname": "sqlglot.dialects.dialect", "modulename": "sqlglot.dialects.dialect", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.dialect.Dialects": {"fullname": "sqlglot.dialects.dialect.Dialects", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects", "kind": "class", "doc": "

An enumeration.

\n", "bases": "builtins.str, enum.Enum"}, "sqlglot.dialects.dialect.Dialects.DIALECT": {"fullname": "sqlglot.dialects.dialect.Dialects.DIALECT", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DIALECT", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DIALECT: ''>"}, "sqlglot.dialects.dialect.Dialects.BIGQUERY": {"fullname": "sqlglot.dialects.dialect.Dialects.BIGQUERY", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.BIGQUERY", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.BIGQUERY: 'bigquery'>"}, "sqlglot.dialects.dialect.Dialects.CLICKHOUSE": {"fullname": "sqlglot.dialects.dialect.Dialects.CLICKHOUSE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.CLICKHOUSE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.CLICKHOUSE: 'clickhouse'>"}, "sqlglot.dialects.dialect.Dialects.DUCKDB": {"fullname": "sqlglot.dialects.dialect.Dialects.DUCKDB", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DUCKDB", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DUCKDB: 'duckdb'>"}, "sqlglot.dialects.dialect.Dialects.HIVE": {"fullname": "sqlglot.dialects.dialect.Dialects.HIVE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.HIVE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.HIVE: 'hive'>"}, "sqlglot.dialects.dialect.Dialects.MYSQL": {"fullname": "sqlglot.dialects.dialect.Dialects.MYSQL", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.MYSQL", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.MYSQL: 'mysql'>"}, "sqlglot.dialects.dialect.Dialects.ORACLE": {"fullname": "sqlglot.dialects.dialect.Dialects.ORACLE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.ORACLE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.ORACLE: 'oracle'>"}, "sqlglot.dialects.dialect.Dialects.POSTGRES": {"fullname": "sqlglot.dialects.dialect.Dialects.POSTGRES", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.POSTGRES", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.POSTGRES: 'postgres'>"}, "sqlglot.dialects.dialect.Dialects.PRESTO": {"fullname": "sqlglot.dialects.dialect.Dialects.PRESTO", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.PRESTO", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.PRESTO: 'presto'>"}, "sqlglot.dialects.dialect.Dialects.REDSHIFT": {"fullname": "sqlglot.dialects.dialect.Dialects.REDSHIFT", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.REDSHIFT", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.REDSHIFT: 'redshift'>"}, "sqlglot.dialects.dialect.Dialects.SNOWFLAKE": {"fullname": "sqlglot.dialects.dialect.Dialects.SNOWFLAKE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.SNOWFLAKE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.SNOWFLAKE: 'snowflake'>"}, "sqlglot.dialects.dialect.Dialects.SPARK": {"fullname": "sqlglot.dialects.dialect.Dialects.SPARK", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.SPARK", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.SPARK: 'spark'>"}, "sqlglot.dialects.dialect.Dialects.SQLITE": {"fullname": "sqlglot.dialects.dialect.Dialects.SQLITE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.SQLITE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.SQLITE: 'sqlite'>"}, "sqlglot.dialects.dialect.Dialects.STARROCKS": {"fullname": "sqlglot.dialects.dialect.Dialects.STARROCKS", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.STARROCKS", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.STARROCKS: 'starrocks'>"}, "sqlglot.dialects.dialect.Dialects.TABLEAU": {"fullname": "sqlglot.dialects.dialect.Dialects.TABLEAU", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TABLEAU", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TABLEAU: 'tableau'>"}, "sqlglot.dialects.dialect.Dialects.TRINO": {"fullname": "sqlglot.dialects.dialect.Dialects.TRINO", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TRINO", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TRINO: 'trino'>"}, "sqlglot.dialects.dialect.Dialects.TSQL": {"fullname": "sqlglot.dialects.dialect.Dialects.TSQL", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TSQL", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TSQL: 'tsql'>"}, "sqlglot.dialects.dialect.Dialects.DATABRICKS": {"fullname": "sqlglot.dialects.dialect.Dialects.DATABRICKS", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DATABRICKS", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DATABRICKS: 'databricks'>"}, "sqlglot.dialects.dialect.Dialects.DRILL": {"fullname": "sqlglot.dialects.dialect.Dialects.DRILL", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DRILL", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DRILL: 'drill'>"}, "sqlglot.dialects.dialect.Dialects.TERADATA": {"fullname": "sqlglot.dialects.dialect.Dialects.TERADATA", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TERADATA", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TERADATA: 'teradata'>"}, "sqlglot.dialects.dialect.Dialect": {"fullname": "sqlglot.dialects.dialect.Dialect", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect", "kind": "class", "doc": "

\n"}, "sqlglot.dialects.dialect.Dialect.get_or_raise": {"fullname": "sqlglot.dialects.dialect.Dialect.get_or_raise", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.get_or_raise", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType]) -> Type[sqlglot.dialects.dialect.Dialect]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.format_time": {"fullname": "sqlglot.dialects.dialect.Dialect.format_time", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.format_time", "kind": "function", "doc": "

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\n", "signature": "(self, sql: str, **opts) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.parse_into": {"fullname": "sqlglot.dialects.dialect.Dialect.parse_into", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.parse_into", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression_type: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]]],\tsql: str,\t**opts) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.generate": {"fullname": "sqlglot.dialects.dialect.Dialect.generate", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.generate", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: Optional[sqlglot.expressions.Expression],\t**opts) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.transpile": {"fullname": "sqlglot.dialects.dialect.Dialect.transpile", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.transpile", "kind": "function", "doc": "

\n", "signature": "(self, sql: str, **opts) -> List[str]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.parser": {"fullname": "sqlglot.dialects.dialect.Dialect.parser", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.parser", "kind": "function", "doc": "

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\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.If) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.arrow_json_extract_sql": {"fullname": "sqlglot.dialects.dialect.arrow_json_extract_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "arrow_json_extract_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.JSONExtract | sqlglot.expressions.JSONBExtract) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.arrow_json_extract_scalar_sql": {"fullname": "sqlglot.dialects.dialect.arrow_json_extract_scalar_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "arrow_json_extract_scalar_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.JSONExtractScalar | sqlglot.expressions.JSONBExtractScalar) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.inline_array_sql": {"fullname": "sqlglot.dialects.dialect.inline_array_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "inline_array_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Array) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_ilike_sql": {"fullname": "sqlglot.dialects.dialect.no_ilike_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_ilike_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.ILike) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_paren_current_date_sql": {"fullname": "sqlglot.dialects.dialect.no_paren_current_date_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_paren_current_date_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.CurrentDate) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_recursive_cte_sql": {"fullname": "sqlglot.dialects.dialect.no_recursive_cte_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_recursive_cte_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.With) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_safe_divide_sql": {"fullname": "sqlglot.dialects.dialect.no_safe_divide_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_safe_divide_sql", "kind": "function", "doc": "

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\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.StructExtract) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.var_map_sql": {"fullname": "sqlglot.dialects.dialect.var_map_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "var_map_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Map | sqlglot.expressions.VarMap,\tmap_func_name: str = 'MAP') -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.format_time_lambda": {"fullname": "sqlglot.dialects.dialect.format_time_lambda", "modulename": "sqlglot.dialects.dialect", "qualname": "format_time_lambda", "kind": "function", "doc": "

Helper used for time expressions.

\n\n
Arguments:
\n\n
    \n
  • exp_class: the expression class to instantiate.
  • \n
  • dialect: target sql dialect.
  • \n
  • default: the default format, True being time.
  • \n
\n\n
Returns:
\n\n
\n

A callable that can be used to return the appropriately formatted time expression.

\n
\n", "signature": "(\texp_class: Type[~E],\tdialect: str,\tdefault: Union[bool, str, NoneType] = None) -> Callable[[Sequence], ~E]:", "funcdef": "def"}, "sqlglot.dialects.dialect.create_with_partitions_sql": {"fullname": "sqlglot.dialects.dialect.create_with_partitions_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "create_with_partitions_sql", "kind": "function", "doc": "

In Hive and Spark, the PARTITIONED BY property acts as an extension of a table's schema. When the\nPARTITIONED BY value is an array of column names, they are transformed into a schema. The corresponding\ncolumns are removed from the create statement.

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\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.DateStrToDate) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.trim_sql": {"fullname": "sqlglot.dialects.dialect.trim_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "trim_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Trim) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.str_to_time_sql": {"fullname": "sqlglot.dialects.dialect.str_to_time_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "str_to_time_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.ts_or_ds_to_date_sql": {"fullname": "sqlglot.dialects.dialect.ts_or_ds_to_date_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "ts_or_ds_to_date_sql", "kind": "function", "doc": "

\n", "signature": "(dialect: str) -> Callable:", "funcdef": "def"}, "sqlglot.dialects.drill": {"fullname": "sqlglot.dialects.drill", "modulename": "sqlglot.dialects.drill", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.drill.Drill": {"fullname": "sqlglot.dialects.drill.Drill", "modulename": "sqlglot.dialects.drill", "qualname": "Drill", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.drill.Drill.Tokenizer": {"fullname": "sqlglot.dialects.drill.Drill.Tokenizer", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.drill.Drill.Parser": {"fullname": "sqlglot.dialects.drill.Drill.Parser", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.drill.Drill.Generator": {"fullname": "sqlglot.dialects.drill.Drill.Generator", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.drill.Drill.Generator.normalize_func": {"fullname": "sqlglot.dialects.drill.Drill.Generator.normalize_func", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Generator.normalize_func", "kind": "function", "doc": "

\n", "signature": "(self, name: str) -> str:", "funcdef": "def"}, "sqlglot.dialects.duckdb": {"fullname": "sqlglot.dialects.duckdb", "modulename": "sqlglot.dialects.duckdb", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.duckdb.DuckDB": {"fullname": "sqlglot.dialects.duckdb.DuckDB", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.duckdb.DuckDB.Tokenizer": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Tokenizer", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.duckdb.DuckDB.Parser": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Parser", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.duckdb.DuckDB.Generator": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Generator", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.hive": {"fullname": "sqlglot.dialects.hive", "modulename": "sqlglot.dialects.hive", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.hive.Hive": {"fullname": "sqlglot.dialects.hive.Hive", "modulename": "sqlglot.dialects.hive", "qualname": "Hive", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.hive.Hive.Tokenizer": {"fullname": "sqlglot.dialects.hive.Hive.Tokenizer", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.hive.Hive.Parser": {"fullname": "sqlglot.dialects.hive.Hive.Parser", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.hive.Hive.Generator": {"fullname": "sqlglot.dialects.hive.Hive.Generator", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.hive.Hive.Generator.with_properties": {"fullname": "sqlglot.dialects.hive.Hive.Generator.with_properties", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.with_properties", "kind": "function", "doc": "

\n", "signature": "(self, properties):", "funcdef": "def"}, "sqlglot.dialects.hive.Hive.Generator.datatype_sql": {"fullname": "sqlglot.dialects.hive.Hive.Generator.datatype_sql", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.datatype_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.mysql": {"fullname": "sqlglot.dialects.mysql", "modulename": "sqlglot.dialects.mysql", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.mysql.MySQL": {"fullname": "sqlglot.dialects.mysql.MySQL", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.mysql.MySQL.Tokenizer": {"fullname": "sqlglot.dialects.mysql.MySQL.Tokenizer", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.mysql.MySQL.Parser": {"fullname": "sqlglot.dialects.mysql.MySQL.Parser", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.mysql.MySQL.Generator": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.mysql.MySQL.Generator.show_sql": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator.show_sql", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator.show_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.mysql.MySQL.Generator.setitem_sql": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator.setitem_sql", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator.setitem_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.mysql.MySQL.Generator.set_sql": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator.set_sql", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator.set_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.oracle": {"fullname": "sqlglot.dialects.oracle", "modulename": "sqlglot.dialects.oracle", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.oracle.Oracle": {"fullname": "sqlglot.dialects.oracle.Oracle", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.oracle.Oracle.Parser": {"fullname": "sqlglot.dialects.oracle.Oracle.Parser", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.oracle.Oracle.Generator": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.oracle.Oracle.Generator.query_modifiers": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.query_modifiers", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.query_modifiers", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression, *sqls: str) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Generator.offset_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.offset_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.offset_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Offset) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Generator.column_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.column_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.column_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Column) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Generator.xmltable_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.xmltable_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.xmltable_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.XMLTable) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Tokenizer": {"fullname": "sqlglot.dialects.oracle.Oracle.Tokenizer", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.postgres": {"fullname": "sqlglot.dialects.postgres", "modulename": "sqlglot.dialects.postgres", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.postgres.Postgres": {"fullname": "sqlglot.dialects.postgres.Postgres", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.postgres.Postgres.Tokenizer": {"fullname": "sqlglot.dialects.postgres.Postgres.Tokenizer", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.postgres.Postgres.Parser": {"fullname": "sqlglot.dialects.postgres.Postgres.Parser", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.postgres.Postgres.Generator": {"fullname": "sqlglot.dialects.postgres.Postgres.Generator", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.presto": {"fullname": "sqlglot.dialects.presto", "modulename": "sqlglot.dialects.presto", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.presto.Presto": {"fullname": "sqlglot.dialects.presto.Presto", "modulename": "sqlglot.dialects.presto", "qualname": "Presto", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.presto.Presto.Tokenizer": {"fullname": "sqlglot.dialects.presto.Presto.Tokenizer", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.presto.Presto.Parser": {"fullname": "sqlglot.dialects.presto.Presto.Parser", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.presto.Presto.Generator": {"fullname": "sqlglot.dialects.presto.Presto.Generator", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.presto.Presto.Generator.transaction_sql": {"fullname": "sqlglot.dialects.presto.Presto.Generator.transaction_sql", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.redshift": {"fullname": "sqlglot.dialects.redshift", "modulename": "sqlglot.dialects.redshift", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.redshift.Redshift": {"fullname": "sqlglot.dialects.redshift.Redshift", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.postgres.Postgres"}, "sqlglot.dialects.redshift.Redshift.Parser": {"fullname": "sqlglot.dialects.redshift.Redshift.Parser", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.postgres.Postgres.Parser"}, "sqlglot.dialects.redshift.Redshift.Tokenizer": {"fullname": "sqlglot.dialects.redshift.Redshift.Tokenizer", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.postgres.Postgres.Tokenizer"}, "sqlglot.dialects.redshift.Redshift.Generator": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.postgres.Postgres.Generator"}, "sqlglot.dialects.redshift.Redshift.Generator.values_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.values_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.values_sql", "kind": "function", "doc": "

Converts VALUES... expression into a series of unions.

\n\n

Note: If you have a lot of unions then this will result in a large number of recursive statements to\nevaluate the expression. You may need to increase sys.setrecursionlimit to run and it can also be\nvery slow.

\n", "signature": "(self, expression: sqlglot.expressions.Values) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.with_properties": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.with_properties", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.with_properties", "kind": "function", "doc": "

Redshift doesn't have WITH as part of their with_properties so we remove it

\n", "signature": "(self, properties: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.renametable_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.renametable_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.renametable_sql", "kind": "function", "doc": "

Redshift only supports defining the table name itself (not the db) when renaming tables

\n", "signature": "(self, expression: sqlglot.expressions.RenameTable) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.datatype_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.datatype_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.datatype_sql", "kind": "function", "doc": "

Redshift converts the TEXT data type to VARCHAR(255) by default when people more generally mean\nVARCHAR of max length which is VARCHAR(max) in Redshift. Therefore if we get a TEXT data type\nwithout precision we convert it to VARCHAR(max) and if it does have precision then we just convert\nTEXT to VARCHAR.

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake": {"fullname": "sqlglot.dialects.snowflake", "modulename": "sqlglot.dialects.snowflake", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.snowflake.Snowflake": {"fullname": "sqlglot.dialects.snowflake.Snowflake", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.snowflake.Snowflake.Parser": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Parser", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.snowflake.Snowflake.Tokenizer": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Tokenizer", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.snowflake.Snowflake.Generator": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.snowflake.Snowflake.Generator.ilikeany_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.ilikeany_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.ilikeany_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ILikeAny) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.likeany_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.likeany_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.likeany_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.LikeAny) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.except_op": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.except_op", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.except_op", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.intersect_op": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.intersect_op", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.intersect_op", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.values_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.values_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.values_sql", "kind": "function", "doc": "

Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.

\n\n

We also want to make sure that after we find matches where we need to unquote a column that we prevent users\nfrom adding quotes to the column by using the identify argument when generating the SQL.

\n", "signature": "(self, expression: sqlglot.expressions.Values) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.settag_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.settag_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.settag_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SetTag) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.select_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.select_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.select_sql", "kind": "function", "doc": "

Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also\nthat all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need\nto unquote a column that we prevent users from adding quotes to the column by using the identify argument when\ngenerating the SQL.

\n\n

Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the\nexpression. This might not be true in a case where the same column name can be sourced from another table that can\nproperly quote but should be true in most cases.

\n", "signature": "(self, expression: sqlglot.expressions.Select) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.describe_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.describe_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.describe_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Describe) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.generatedasidentitycolumnconstraint_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.generatedasidentitycolumnconstraint_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.generatedasidentitycolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.GeneratedAsIdentityColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.dialects.spark": {"fullname": "sqlglot.dialects.spark", "modulename": "sqlglot.dialects.spark", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.spark.Spark": {"fullname": "sqlglot.dialects.spark.Spark", "modulename": "sqlglot.dialects.spark", "qualname": "Spark", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.hive.Hive"}, "sqlglot.dialects.spark.Spark.Parser": {"fullname": "sqlglot.dialects.spark.Spark.Parser", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.hive.Hive.Parser"}, "sqlglot.dialects.spark.Spark.Generator": {"fullname": "sqlglot.dialects.spark.Spark.Generator", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.hive.Hive.Generator"}, "sqlglot.dialects.spark.Spark.Generator.cast_sql": {"fullname": "sqlglot.dialects.spark.Spark.Generator.cast_sql", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Generator.cast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cast) -> str:", "funcdef": "def"}, "sqlglot.dialects.spark.Spark.Tokenizer": {"fullname": "sqlglot.dialects.spark.Spark.Tokenizer", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.hive.Hive.Tokenizer"}, "sqlglot.dialects.sqlite": {"fullname": "sqlglot.dialects.sqlite", "modulename": "sqlglot.dialects.sqlite", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.sqlite.SQLite": {"fullname": "sqlglot.dialects.sqlite.SQLite", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.sqlite.SQLite.Tokenizer": {"fullname": "sqlglot.dialects.sqlite.SQLite.Tokenizer", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.sqlite.SQLite.Parser": {"fullname": "sqlglot.dialects.sqlite.SQLite.Parser", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.sqlite.SQLite.Generator": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.sqlite.SQLite.Generator.transaction_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.transaction_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.starrocks": {"fullname": "sqlglot.dialects.starrocks", "modulename": "sqlglot.dialects.starrocks", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.starrocks.StarRocks": {"fullname": "sqlglot.dialects.starrocks.StarRocks", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.mysql.MySQL"}, "sqlglot.dialects.starrocks.StarRocks.Generator": {"fullname": "sqlglot.dialects.starrocks.StarRocks.Generator", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.mysql.MySQL.Generator"}, "sqlglot.dialects.tableau": {"fullname": "sqlglot.dialects.tableau", "modulename": "sqlglot.dialects.tableau", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.tableau.Tableau": {"fullname": "sqlglot.dialects.tableau.Tableau", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.tableau.Tableau.Generator": {"fullname": "sqlglot.dialects.tableau.Tableau.Generator", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.tableau.Tableau.Parser": {"fullname": "sqlglot.dialects.tableau.Tableau.Parser", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.teradata": {"fullname": "sqlglot.dialects.teradata", "modulename": "sqlglot.dialects.teradata", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.teradata.Teradata": {"fullname": "sqlglot.dialects.teradata.Teradata", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.teradata.Teradata.Tokenizer": {"fullname": "sqlglot.dialects.teradata.Teradata.Tokenizer", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.teradata.Teradata.Parser": {"fullname": "sqlglot.dialects.teradata.Teradata.Parser", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.teradata.Teradata.Generator": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.teradata.Teradata.Generator.partitionedbyproperty_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.partitionedbyproperty_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.partitionedbyproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.PartitionedByProperty) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.update_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.update_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.update_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Update) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.mod_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.mod_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.mod_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Mod) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.datatype_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.datatype_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.datatype_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.rangen_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.rangen_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.rangen_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.RangeN) -> str:", "funcdef": "def"}, "sqlglot.dialects.trino": {"fullname": "sqlglot.dialects.trino", "modulename": "sqlglot.dialects.trino", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.trino.Trino": {"fullname": "sqlglot.dialects.trino.Trino", "modulename": "sqlglot.dialects.trino", "qualname": "Trino", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.presto.Presto"}, "sqlglot.dialects.trino.Trino.Generator": {"fullname": "sqlglot.dialects.trino.Trino.Generator", "modulename": "sqlglot.dialects.trino", "qualname": "Trino.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.presto.Presto.Generator"}, "sqlglot.dialects.trino.Trino.Tokenizer": {"fullname": "sqlglot.dialects.trino.Trino.Tokenizer", "modulename": "sqlglot.dialects.trino", "qualname": "Trino.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.presto.Presto.Tokenizer"}, "sqlglot.dialects.tsql": {"fullname": "sqlglot.dialects.tsql", "modulename": "sqlglot.dialects.tsql", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.tsql.generate_date_delta_with_unit_sql": {"fullname": "sqlglot.dialects.tsql.generate_date_delta_with_unit_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "generate_date_delta_with_unit_sql", "kind": "function", "doc": "

\n", "signature": "(self, e):", "funcdef": "def"}, "sqlglot.dialects.tsql.TSQL": {"fullname": "sqlglot.dialects.tsql.TSQL", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.tsql.TSQL.Tokenizer": {"fullname": "sqlglot.dialects.tsql.TSQL.Tokenizer", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.tsql.TSQL.Parser": {"fullname": "sqlglot.dialects.tsql.TSQL.Parser", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.tsql.TSQL.Generator": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.tsql.TSQL.Generator.systemtime_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.systemtime_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.systemtime_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SystemTime) -> str:", "funcdef": "def"}, "sqlglot.dialects.tsql.TSQL.Generator.returnsproperty_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.returnsproperty_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.returnsproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ReturnsProperty) -> str:", "funcdef": "def"}, "sqlglot.diff": {"fullname": "sqlglot.diff", "modulename": "sqlglot.diff", "kind": "module", "doc": "

Semantic Diff for SQL

\n\n

by Iaroslav Zeigerman

\n\n

Motivation

\n\n

Software is constantly changing and evolving, and identifying what has changed and reviewing those changes is an integral part of the development process. SQL code is no exception to this.

\n\n

Text-based diff tools such as git diff, when applied to a code base, have certain limitations. First, they can only detect insertions and deletions, not movements or updates of individual pieces of code. Second, such tools can only detect changes between lines of text, which is too coarse for something as granular and detailed as source code. Additionally, the outcome of such a diff is dependent on the underlying code formatting, and yields different results if the formatting should change.

\n\n

Consider the following diff generated by Git:

\n\n

\"Git

\n\n

Semantically the query hasn\u2019t changed. The two arguments b and c have been swapped (moved), posing no impact on the output of the query. Yet Git replaced the whole affected expression alongside a bulk of unrelated elements.

\n\n

The alternative to text-based diffing is to compare Abstract Syntax Trees (AST) instead. The main advantage of ASTs are that they are a direct product of code parsing, which represents the underlying code structure at any desired level of granularity. Comparing ASTs may yield extremely precise diffs; changes such as code movements and updates can also be detected. Even more importantly, this approach facilitates additional use cases beyond eyeballing two versions of source code side by side.

\n\n

The use cases I had in mind for SQL when I decided to embark on this journey of semantic diffing were the following:

\n\n
    \n
  • Query similarity score. Identifying which parts the two queries have in common to automatically suggest opportunities for consolidation, creation of intermediate/staging tables, and so on.
  • \n
  • Differentiating between cosmetic / structural changes and functional ones. For example when a nested query is refactored into a common table expression (CTE), this kind of change doesn\u2019t have any functional impact on either a query or its outcome.
  • \n
  • Automatic suggestions about the need to retroactively backfill data. This is especially important for pipelines that populate very large tables for which restatement is a runtime-intensive procedure. The ability to discern between simple code movements and actual modifications can help assess the impact of a change and make suggestions accordingly.
  • \n
\n\n

The implementation discussed in this post is now a part of the SQLGlot library. You can find a complete source code in the diff.py module. The choice of SQLglot was an obvious one due to its simple but powerful API, lack of external dependencies and, more importantly, extensive list of supported SQL dialects.

\n\n

The Search for a Solution

\n\n

When it comes to any diffing tool (not just a semantic one), the primary challenge is to match as many elements of compared entities as possible. Once such a set of matching elements is available, deriving a sequence of changes becomes an easy task.

\n\n

If our elements have unique identifiers associated with them (for example, an element\u2019s ID in DOM), the matching problem is trivial. However, the SQL syntax trees that we are comparing have neither unique keys nor object identifiers that can be used for the purposes of matching. So, how do we suppose to find pairs of nodes that are related?

\n\n

To better illustrate the problem, consider comparing the following SQL expressions: SELECT a + b + c, d, e and SELECT a - b + c, e, f. Matching individual nodes from respective syntax trees can be visualized as follows:

\n\n

\"Figure\nFigure 1: Example of node matching for two SQL expression trees.

\n\n

By looking at the figure of node matching for two SQL expression trees above, we conclude that the following changes should be captured by our solution:

\n\n
    \n
  • Inserted nodes: Sub and f. These are the nodes from the target AST which do not have a matching node in the source AST.
  • \n
  • Removed nodes: Add and d. These are the nodes from the source AST which do not have a counterpart in the target AST.
  • \n
  • Remaining nodes must be identified as unchanged.
  • \n
\n\n

It should be clear at this point that if we manage to match nodes in the source tree with their counterparts in the target tree, then computing the diff becomes a trivial matter.

\n\n

Na\u00efve Brute-Force

\n\n

The na\u00efve solution would be to try all different permutations of node pair combinations, and see which set of pairs performs the best based on some type of heuristics. The runtime cost of such a solution quickly reaches the escape velocity; if both trees had only 10 nodes each, the number of such sets would approximately be 10! ^ 2 = 3.6M ^ 2 ~= 13 * 10^12. This is a very bad case of factorial complexity (to be precise, it\u2019s actually much worse - O(n! ^ 2) - but I couldn\u2019t come up with a name for it), so there is little need to explore this approach any further.

\n\n

Myers Algorithm

\n\n

After the na\u00efve approach was proven to be infeasible, the next question I asked myself was \u201chow does git diff work?\u201d. This question led me to discover the Myers diff algorithm [1]. This algorithm has been designed to compare sequences of strings. At its core, it\u2019s looking for the shortest path on a graph of possible edits that transform the first sequence into the second one, while heavily rewarding those paths that lead to longest subsequences of unchanged elements. There\u2019s a lot of material out there describing this algorithm in greater detail. I found James Coglan\u2019s series of blog posts to be the most comprehensive.

\n\n

Therefore, I had this \u201cbrilliant\u201d (actually not) idea to transform trees into sequences by traversing them in topological order, and then applying the Myers algorithm on resulting sequences while using a custom heuristics when checking the equality of two nodes. Unsurprisingly, comparing sequences of strings is quite different from comparing hierarchical tree structures, and by flattening trees into sequences, we lose a lot of relevant context. This resulted in a terrible performance of this algorithm on ASTs. It often matched completely unrelated nodes, even when the two trees were mostly the same, and produced extremely inaccurate lists of changes overall. After playing around with it a little and tweaking my equality heuristics to improve accuracy, I ultimately scrapped the whole implementation and went back to the drawing board.

\n\n

Change Distiller

\n\n

The algorithm I settled on at the end was Change Distiller, created by Fluri et al. [2], which in turn is an improvement over the core idea described by Chawathe et al. [3].

\n\n

The algorithm consists of two high-level steps:

\n\n
    \n
  1. Finding appropriate matchings between pairs of nodes that are part of compared ASTs. Identifying what is meant by \u201cappropriate\u201d matching is also a part of this step.
  2. \n
  3. Generating the so-called \u201cedit script\u201d from the matching set built in the 1st step. The edit script is a sequence of edit operations (for example, insert, remove, update, etc.) on individual tree nodes, such that when applied as transformations on the source AST, it eventually becomes the target AST. In general, the shorter the sequence, the better. The length of the edit script can be used to compare the performance of different algorithms, though this is not the only metric that matters.
  4. \n
\n\n

The rest of this section is dedicated to the Python implementation of the steps above using the AST implementation provided by the SQLGlot library.

\n\n

Building the Matching Set

\n\n

Matching Leaves

\n\n

We begin composing the matching set by matching the leaf nodes. Leaf nodes are the nodes that do not have any children nodes (such as literals, identifiers, etc.). In order to match them, we gather all the leaf nodes from the source tree and generate a cartesian product with all the leaves from the target tree, while comparing pairs created this way and assigning them a similarity score. During this stage, we also exclude pairs that don\u2019t pass basic matching criteria. Then, we pick pairs that scored the highest while making sure that each node is matched no more than once.

\n\n

Using the example provided at the beginning of the post, the process of building an initial set of candidate matchings can be seen on Figure 2.

\n\n

\"Figure\nFigure 2: Building a set of candidate matchings between leaf nodes. The third item in each triplet represents a similarity score between two nodes.

\n\n

First, let\u2019s analyze the similarity score. Then, we\u2019ll discuss matching criteria.

\n\n

The similarity score proposed by Fluri et al. [2] is a dice coefficient applied to bigrams of respective node values. A bigram is a sequence of two adjacent elements from a string computed in a sliding window fashion:

\n\n
\n
def bigram(string):\n    count = max(0, len(string) - 1)\n    return [string[i : i + 2] for i in range(count)]\n
\n
\n\n

For reasons that will become clear shortly, we actually need to compute bigram histograms rather than just sequences:

\n\n
\n
from collections import defaultdict\n\ndef bigram_histo(string):\n    count = max(0, len(string) - 1)\n    bigram_histo = defaultdict(int)\n    for i in range(count):\n        bigram_histo[string[i : i + 2]] += 1\n    return bigram_histo\n
\n
\n\n

The dice coefficient formula looks like following:

\n\n

\"Dice

\n\n

Where X is a bigram of the source node and Y is a bigram of the second one. What this essentially does is count the number of bigram elements the two nodes have in common, multiply it by 2, and then divide by the total number of elements in both bigrams. This is where bigram histograms come in handy:

\n\n
\n
def dice_coefficient(source, target):\n    source_histo = bigram_histo(source.sql())\n    target_histo = bigram_histo(target.sql())\n\n    total_grams = (\n        sum(source_histo.values()) + sum(target_histo.values())\n    )\n    if not total_grams:\n        return 1.0 if source == target else 0.0\n\n    overlap_len = 0\n    overlapping_grams = set(source_histo) & set(target_histo)\n    for g in overlapping_grams:\n        overlap_len += min(source_histo[g], target_histo[g])\n\n    return 2 * overlap_len / total_grams\n
\n
\n\n

To compute a bigram given a tree node, we first transform the node into its canonical SQL representation,so that the Literal(123) node becomes just \u201c123\u201d and the Identifier(\u201ca\u201d) node becomes just \u201ca\u201d. We also handle a scenario when strings are too short to derive bigrams. In this case, we fallback to checking the two nodes for equality.

\n\n

Now when we know how to compute the similarity score, we can take care of the matching criteria for leaf nodes. In the original paper [2], the matching criteria is formalized as follows:

\n\n

\"Matching

\n\n

The two nodes are matched if two conditions are met:

\n\n
    \n
  1. The node labels match (in our case labels are just node types).
  2. \n
  3. The similarity score for node values is greater than or equal to some threshold \u201cf\u201d. The authors of the paper recommend setting the value of \u201cf\u201d to 0.6.
  4. \n
\n\n

With building blocks in place, we can now build a matching set for leaf nodes. First, we generate a list of candidates for matching:

\n\n
\n
from heapq import heappush, heappop\n\ncandidate_matchings = []\nsource_leaves = _get_leaves(self._source)\ntarget_leaves = _get_leaves(self._target)\nfor source_leaf in source_leaves:\n    for target_leaf in target_leaves:\n        if _is_same_type(source_leaf, target_leaf):\n            similarity_score = dice_coefficient(\n                source_leaf, target_leaf\n            )\n            if similarity_score >= 0.6:\n                heappush(\n                    candidate_matchings,\n                    (\n                        -similarity_score,\n                        len(candidate_matchings),\n                        source_leaf,\n                        target_leaf,\n                    ),\n                )\n
\n
\n\n

In the implementation above, we push each matching pair onto the heap to automatically maintain the correct order based on the assigned similarity score.

\n\n

Finally, we build the initial matching set by picking leaf pairs with the highest score:

\n\n
\n
matching_set = set()\nwhile candidate_matchings:\n    _, _, source_leaf, target_leaf = heappop(candidate_matchings)\n    if (\n        source_leaf in unmatched_source_nodes\n        and target_leaf in unmatched_target_nodes\n    ):\n        matching_set.add((source_leaf, target_leaf))\n        unmatched_source_nodes.remove(source_leaf)\n        unmatched_target_nodes.remove(target_leaf)\n
\n
\n\n

To finalize the matching set, we should now proceed with matching inner nodes.

\n\n

Matching Inner Nodes

\n\n

Matching inner nodes is quite similar to matching leaf nodes, with the following two distinctions:

\n\n
    \n
  • Rather than ranking a set of possible candidates, we pick the first node pair that passes the matching criteria.
  • \n
  • The matching criteria itself has been extended to account for the number of leaf nodes the pair of inner nodes have in common.
  • \n
\n\n

\"Figure\nFigure 3: Matching inner nodes based on their type as well as how many of their leaf nodes have been previously matched.

\n\n

Let\u2019s start with the matching criteria. The criteria is formalized as follows:

\n\n

\"Matching

\n\n

Alongside already familiar similarity score and node type criteria, there is a new one in the middle: the ratio of leaf nodes that the two nodes have in common must exceed some threshold \u201ct\u201d. The recommended value for \u201ct\u201d is also 0.6. Counting the number of common leaf nodes is pretty straightforward, since we already have the complete matching set for leaves. All we need to do is count how many matching pairs do leaf nodes from the two compared inner nodes form.

\n\n

There are two additional heuristics associated with this matching criteria:

\n\n
    \n
  • Inner node similarity weighting: if the similarity score between the node values doesn\u2019t pass the threshold \u201cf\u201d but the ratio of common leaf nodes (\u201ct\u201d) is greater than or equal to 0.8, then the matching is considered successful.
  • \n
  • The threshold \u201ct\u201d is reduced to 0.4 for inner nodes with the number of leaf nodes equal to 4 or less, in order to decrease the false negative rate for small subtrees.
  • \n
\n\n

We now only have to iterate through the remaining unmatched nodes and form matching pairs based on the outlined criteria:

\n\n
\n
leaves_matching_set = matching_set.copy()\n\nfor source_node in unmatched_source_nodes.copy():\n    for target_node in unmatched_target_nodes:\n        if _is_same_type(source_node, target_node):\n            source_leaves = set(_get_leaves(source_node))\n            target_leaves = set(_get_leaves(target_node))\n\n            max_leaves_num = max(len(source_leaves), len(target_leaves))\n            if max_leaves_num:\n                common_leaves_num = sum(\n                    1 if s in source_leaves and t in target_leaves else 0\n                    for s, t in leaves_matching_set\n                )\n                leaf_similarity_score = common_leaves_num / max_leaves_num\n            else:\n                leaf_similarity_score = 0.0\n\n            adjusted_t = (\n                0.6\n                if min(len(source_leaves), len(target_leaves)) > 4\n                else 0.4\n            )\n\n            if leaf_similarity_score >= 0.8 or (\n                leaf_similarity_score >= adjusted_t\n                and dice_coefficient(source_node, target_node) >= 0.6\n            ):\n                matching_set.add((source_node, target_node))\n                unmatched_source_nodes.remove(source_node)\n                unmatched_target_nodes.remove(target_node)\n                break\n
\n
\n\n

After the matching set is formed, we can proceed with generation of the edit script, which will be the algorithm\u2019s output.

\n\n

Generating the Edit Script

\n\n

At this point, we should have the following 3 sets at our disposal:

\n\n
    \n
  • The set of matched node pairs.
  • \n
  • The set of remaining unmatched nodes from the source tree.
  • \n
  • The set of remaining unmatched nodes from the target tree.
  • \n
\n\n

We can derive 3 kinds of edits from the matching set: either the node\u2019s value was updated (Update), the node was moved to a different position within the tree (Move), or the node remained unchanged (Keep). Note that the Move case is not mutually exclusive with the other two. The node could have been updated or could have remained the same while at the same time its position within its parent node or the parent node itself could have changed. All unmatched nodes from the source tree are the ones that were removed (Remove), while unmatched nodes from the target tree are the ones that were inserted (Insert).

\n\n

The latter two cases are pretty straightforward to implement:

\n\n
\n
edit_script = []\n\nfor removed_node in unmatched_source_nodes:\n    edit_script.append(Remove(removed_node))\nfor inserted_node in unmatched_target_nodes:\n    edit_script.append(Insert(inserted_node))\n
\n
\n\n

Traversing the matching set requires a little more thought:

\n\n
\n
for source_node, target_node in matching_set:\n    if (\n        not isinstance(source_node, LEAF_EXPRESSION_TYPES)\n        or source_node == target_node\n    ):\n        move_edits = generate_move_edits(\n            source_node, target_node, matching_set\n        )\n        edit_script.extend(move_edits)\n        edit_script.append(Keep(source_node, target_node))\n    else:\n        edit_script.append(Update(source_node, target_node))\n
\n
\n\n

If a matching pair represents a pair of leaf nodes, we check if they are the same to decide whether an update took place. For inner node pairs, we also need to compare the positions of their respective children to detect node movements. Chawathe et al. [3] suggest applying the longest common subsequence (LCS) algorithm which, no surprise here, was described by Myers himself [1]. There is a small catch, however: instead of checking the equality of two children nodes, we need to check whether the two nodes form a pair that is a part of our matching set.

\n\n

Now with this knowledge, the implementation becomes straightforward:

\n\n
\n
def generate_move_edits(source, target, matching_set):\n    source_children = _get_child_nodes(source)\n    target_children = _get_child_nodes(target)\n\n    lcs = set(\n        _longest_common_subsequence(\n            source_children,\n            target_children,\n            lambda l, r: (l, r) in matching_set\n        )\n    )\n\n    move_edits = []\n    for node in source_children:\n        if node not in lcs and node not in unmatched_source_nodes:\n            move_edits.append(Move(node))\n\n    return move_edits\n
\n
\n\n

I left out the implementation of the LCS algorithm itself here, but there are plenty of implementation choices out there that can be easily looked up.

\n\n

Output

\n\n

The implemented algorithm produces the output that resembles the following:

\n\n
\n
>>> from sqlglot import parse_one, diff\n>>> diff(parse_one("SELECT a + b + c, d, e"), parse_one("SELECT a - b + c, e, f"))\n\nRemove(Add)\nRemove(Column(d))\nRemove(Identifier(d))\nInsert(Sub)\nInsert(Column(f))\nInsert(Identifier(f))\nKeep(Select, Select)\nKeep(Add, Add)\nKeep(Column(a), Column(a))\nKeep(Identifier(a), Identifier(a))\nKeep(Column(b), Column(b))\nKeep(Identifier(b), Identifier(b))\nKeep(Column(c), Column(c))\nKeep(Identifier(c), Identifier(c))\nKeep(Column(e), Column(e))\nKeep(Identifier(e), Identifier(e))\n
\n
\n\n

Note that the output above is abbreviated. The string representation of actual AST nodes is significantly more verbose.

\n\n

The implementation works especially well when coupled with the SQLGlot\u2019s query optimizer which can be used to produce canonical representations of compared queries:

\n\n
\n
>>> schema={"t": {"a": "INT", "b": "INT", "c": "INT", "d": "INT"}}\n>>> source = """\n... SELECT 1 + 1 + a\n... FROM t\n... WHERE b = 1 OR (c = 2 AND d = 3)\n... """\n>>> target = """\n... SELECT 2 + a\n... FROM t\n... WHERE (b = 1 OR c = 2) AND (b = 1 OR d = 3)\n... """\n>>> optimized_source = optimize(parse_one(source), schema=schema)\n>>> optimized_target = optimize(parse_one(target), schema=schema)\n>>> edit_script = diff(optimized_source, optimized_target)\n>>> sum(0 if isinstance(e, Keep) else 1 for e in edit_script)\n0\n
\n
\n\n

Optimizations

\n\n

The worst case runtime complexity of this algorithm is not exactly stellar: O(n^2 * log n^2). This is because of the leaf matching process, which involves ranking a cartesian product between all leaf nodes of compared trees. Unsurprisingly, the algorithm takes a considerable time to finish for bigger queries.

\n\n

There are still a few basic things we can do in our implementation to help improve performance:

\n\n
    \n
  • Refer to individual node objects using their identifiers (Python\u2019s id()) instead of direct references in sets. This helps avoid costly recursive hash calculations and equality checks.
  • \n
  • Cache bigram histograms to avoid computing them more than once for the same node.
  • \n
  • Compute the canonical SQL string representation for each tree once while caching string representations of all inner nodes. This prevents redundant tree traversals when bigrams are computed.
  • \n
\n\n

At the time of writing only the first two optimizations have been implemented, so there is an opportunity to contribute for anyone who\u2019s interested.

\n\n

Alternative Solutions

\n\n

This section is dedicated to solutions that I\u2019ve investigated, but haven\u2019t tried.

\n\n

First, this section wouldn\u2019t be complete without Tristan Hume\u2019s blog post. Tristan\u2019s solution has a lot in common with the Myers algorithm plus heuristics that is much more clever than what I came up with. The implementation relies on a combination of dynamic programming and A* search algorithm to explore the space of possible matchings and pick the best ones. It seemed to have worked well for Tistan\u2019s specific use case, but after my negative experience with the Myers algorithm, I decided to try something different.

\n\n

Another notable approach is the Gumtree algorithm by Falleri et al. [4]. I discovered this paper after I\u2019d already implemented the algorithm that is the main focus of this post. In sections 5.2 and 5.3 of their paper, the authors compare the two algorithms side by side and claim that Gumtree is significantly better in terms of both runtime performance and accuracy when evaluated on 12 792 pairs of Java source files. This doesn\u2019t surprise me, as the algorithm takes the height of subtrees into account. In my tests, I definitely saw scenarios in which this context would have helped. On top of that, the authors promise O(n^2) runtime complexity in the worst case which, given the Change Distiller's O(n^2 * log n^2), looks particularly tempting. I hope to try this algorithm out at some point, and there is a good chance you see me writing about it in my future posts.

\n\n

Conclusion

\n\n

The Change Distiller algorithm yielded quite satisfactory results in most of my tests. The scenarios in which it fell short mostly concerned identical (or very similar) subtrees located in different parts of the AST. In those cases, node mismatches were frequent and, as a result, edit scripts were somewhat suboptimal.

\n\n

Additionally, the runtime performance of the algorithm leaves a lot to be desired. On trees with 1000 leaf nodes each, the algorithm takes a little under 2 seconds to complete. My implementation still has room for improvement, but this should give you a rough idea of what to expect. It appears that the Gumtree algorithm [4] can help address both of these points. I hope to find bandwidth to work on it soon and then compare the two algorithms side-by-side to find out which one performs better on SQL specifically. In the meantime, Change Distiller definitely gets the job done, and I can now proceed with applying it to some of the use cases I mentioned at the beginning of this post.

\n\n

I\u2019m also curious to learn whether other folks in the industry faced a similar problem, and how they approached it. If you did something similar, I\u2019m interested to hear about your experience.

\n\n

References

\n\n

[1] Eugene W. Myers. An O(ND) Difference Algorithm and Its Variations. Algorithmica 1(2): 251-266 (1986)

\n\n

[2] B. Fluri, M. Wursch, M. Pinzger, and H. Gall. Change Distilling: Tree differencing for fine-grained source code change extraction. IEEE Trans. Software Eng., 33(11):725\u2013743, 2007.

\n\n

[3] S.S. Chawathe, A. Rajaraman, H. Garcia-Molina, and J. Widom. Change Detection in Hierarchically Structured Information. Proc. ACM Sigmod Int\u2019l Conf. Management of Data, pp. 493-504, June 1996

\n\n

[4] Jean-R\u00e9my Falleri, Flor\u00e9al Morandat, Xavier Blanc, Matias Martinez, Martin Monperrus. Fine-grained and Accurate Source Code Differencing. Proceedings of the International Conference on Automated Software Engineering, 2014, V\u00e4steras, Sweden. pp.313-324, 10.1145/2642937.2642982. hal-01054552

\n\n
\n"}, "sqlglot.diff.Insert": {"fullname": "sqlglot.diff.Insert", "modulename": "sqlglot.diff", "qualname": "Insert", "kind": "class", "doc": "

Indicates that a new node has been inserted

\n"}, "sqlglot.diff.Insert.__init__": {"fullname": "sqlglot.diff.Insert.__init__", "modulename": "sqlglot.diff", "qualname": "Insert.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Remove": {"fullname": "sqlglot.diff.Remove", "modulename": "sqlglot.diff", "qualname": "Remove", "kind": "class", "doc": "

Indicates that an existing node has been removed

\n"}, "sqlglot.diff.Remove.__init__": {"fullname": "sqlglot.diff.Remove.__init__", "modulename": "sqlglot.diff", "qualname": "Remove.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Move": {"fullname": "sqlglot.diff.Move", "modulename": "sqlglot.diff", "qualname": "Move", "kind": "class", "doc": "

Indicates that an existing node's position within the tree has changed

\n"}, "sqlglot.diff.Move.__init__": {"fullname": "sqlglot.diff.Move.__init__", "modulename": "sqlglot.diff", "qualname": "Move.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Update": {"fullname": "sqlglot.diff.Update", "modulename": "sqlglot.diff", "qualname": "Update", "kind": "class", "doc": "

Indicates that an existing node has been updated

\n"}, "sqlglot.diff.Update.__init__": {"fullname": "sqlglot.diff.Update.__init__", "modulename": "sqlglot.diff", "qualname": "Update.__init__", "kind": "function", "doc": "

\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression)"}, "sqlglot.diff.Keep": {"fullname": "sqlglot.diff.Keep", "modulename": "sqlglot.diff", "qualname": "Keep", "kind": "class", "doc": "

Indicates that an existing node hasn't been changed

\n"}, "sqlglot.diff.Keep.__init__": {"fullname": "sqlglot.diff.Keep.__init__", "modulename": "sqlglot.diff", "qualname": "Keep.__init__", "kind": "function", "doc": "

\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression)"}, "sqlglot.diff.diff": {"fullname": "sqlglot.diff.diff", "modulename": "sqlglot.diff", "qualname": "diff", "kind": "function", "doc": "

Returns the list of changes between the source and the target expressions.

\n\n
Examples:
\n\n
\n
\n
>>> diff(parse_one("a + b"), parse_one("a + c"))\n[\n    Remove(expression=(COLUMN this: (IDENTIFIER this: b, quoted: False))),\n    Insert(expression=(COLUMN this: (IDENTIFIER this: c, quoted: False))),\n    Keep(\n        source=(ADD this: ...),\n        target=(ADD this: ...)\n    ),\n    Keep(\n        source=(COLUMN this: (IDENTIFIER this: a, quoted: False)),\n        target=(COLUMN this: (IDENTIFIER this: a, quoted: False))\n    ),\n]\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • source: the source expression.
  • \n
  • target: the target expression against which the diff should be calculated.
  • \n
  • matchings: the list of pre-matched node pairs which is used to help the algorithm's\nheuristics produce better results for subtrees that are known by a caller to be matching.\nNote: expression references in this list must refer to the same node objects that are\nreferenced in source / target trees.
  • \n
\n\n
Returns:
\n\n
\n

the list of Insert, Remove, Move, Update and Keep objects for each node in the source and the\n target expression trees. This list represents a sequence of steps needed to transform the source\n expression tree into the target one.

\n
\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression,\tmatchings: Optional[List[Tuple[sqlglot.expressions.Expression, sqlglot.expressions.Expression]]] = None,\t**kwargs: Any) -> List[Union[sqlglot.diff.Insert, sqlglot.diff.Remove, sqlglot.diff.Move, sqlglot.diff.Update, sqlglot.diff.Keep]]:", "funcdef": "def"}, "sqlglot.diff.ChangeDistiller": {"fullname": "sqlglot.diff.ChangeDistiller", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller", "kind": "class", "doc": "

The implementation of the Change Distiller algorithm described by Beat Fluri and Martin Pinzger in\ntheir paper https://ieeexplore.ieee.org/document/4339230, which in turn is based on the algorithm by\nChawathe et al. described in http://ilpubs.stanford.edu:8090/115/1/1995-46.pdf.

\n"}, "sqlglot.diff.ChangeDistiller.__init__": {"fullname": "sqlglot.diff.ChangeDistiller.__init__", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller.__init__", "kind": "function", "doc": "

\n", "signature": "(f: float = 0.6, t: float = 0.6)"}, "sqlglot.diff.ChangeDistiller.diff": {"fullname": "sqlglot.diff.ChangeDistiller.diff", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller.diff", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression,\tmatchings: Optional[List[Tuple[sqlglot.expressions.Expression, sqlglot.expressions.Expression]]] = None) -> List[Union[sqlglot.diff.Insert, sqlglot.diff.Remove, sqlglot.diff.Move, sqlglot.diff.Update, sqlglot.diff.Keep]]:", "funcdef": "def"}, "sqlglot.errors": {"fullname": "sqlglot.errors", "modulename": "sqlglot.errors", "kind": "module", "doc": "

\n"}, "sqlglot.errors.ErrorLevel": {"fullname": "sqlglot.errors.ErrorLevel", "modulename": "sqlglot.errors", "qualname": "ErrorLevel", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.errors.ErrorLevel.IGNORE": {"fullname": "sqlglot.errors.ErrorLevel.IGNORE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.IGNORE", "kind": "variable", "doc": "

Ignore all errors.

\n", "default_value": "<ErrorLevel.IGNORE: 'IGNORE'>"}, "sqlglot.errors.ErrorLevel.WARN": {"fullname": "sqlglot.errors.ErrorLevel.WARN", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.WARN", "kind": "variable", "doc": "

Log all errors.

\n", "default_value": "<ErrorLevel.WARN: 'WARN'>"}, "sqlglot.errors.ErrorLevel.RAISE": {"fullname": "sqlglot.errors.ErrorLevel.RAISE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.RAISE", "kind": "variable", "doc": "

Collect all errors and raise a single exception.

\n", "default_value": "<ErrorLevel.RAISE: 'RAISE'>"}, "sqlglot.errors.ErrorLevel.IMMEDIATE": {"fullname": "sqlglot.errors.ErrorLevel.IMMEDIATE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.IMMEDIATE", "kind": "variable", "doc": "

Immediately raise an exception on the first error found.

\n", "default_value": "<ErrorLevel.IMMEDIATE: 'IMMEDIATE'>"}, "sqlglot.errors.SqlglotError": {"fullname": "sqlglot.errors.SqlglotError", "modulename": "sqlglot.errors", "qualname": "SqlglotError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "builtins.Exception"}, "sqlglot.errors.UnsupportedError": {"fullname": "sqlglot.errors.UnsupportedError", "modulename": "sqlglot.errors", "qualname": "UnsupportedError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ParseError": {"fullname": "sqlglot.errors.ParseError", "modulename": "sqlglot.errors", "qualname": "ParseError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ParseError.__init__": {"fullname": "sqlglot.errors.ParseError.__init__", "modulename": "sqlglot.errors", "qualname": "ParseError.__init__", "kind": "function", "doc": "

\n", "signature": "(message: str, errors: Optional[List[Dict[str, Any]]] = None)"}, "sqlglot.errors.ParseError.new": {"fullname": "sqlglot.errors.ParseError.new", "modulename": "sqlglot.errors", "qualname": "ParseError.new", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tmessage: str,\tdescription: Optional[str] = None,\tline: Optional[int] = None,\tcol: Optional[int] = None,\tstart_context: Optional[str] = None,\thighlight: Optional[str] = None,\tend_context: Optional[str] = None,\tinto_expression: Optional[str] = None) -> sqlglot.errors.ParseError:", "funcdef": "def"}, "sqlglot.errors.TokenError": {"fullname": "sqlglot.errors.TokenError", "modulename": "sqlglot.errors", "qualname": "TokenError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.OptimizeError": {"fullname": "sqlglot.errors.OptimizeError", "modulename": "sqlglot.errors", "qualname": "OptimizeError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.SchemaError": {"fullname": "sqlglot.errors.SchemaError", "modulename": "sqlglot.errors", "qualname": "SchemaError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ExecuteError": {"fullname": "sqlglot.errors.ExecuteError", "modulename": "sqlglot.errors", "qualname": "ExecuteError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.concat_messages": {"fullname": "sqlglot.errors.concat_messages", "modulename": "sqlglot.errors", "qualname": "concat_messages", "kind": "function", "doc": "

\n", "signature": "(errors: Sequence[Any], maximum: int) -> str:", "funcdef": "def"}, "sqlglot.errors.merge_errors": {"fullname": "sqlglot.errors.merge_errors", "modulename": "sqlglot.errors", "qualname": "merge_errors", "kind": "function", "doc": "

\n", "signature": "(errors: Sequence[sqlglot.errors.ParseError]) -> List[Dict[str, Any]]:", "funcdef": "def"}, "sqlglot.executor": {"fullname": "sqlglot.executor", "modulename": "sqlglot.executor", "kind": "module", "doc": "

Writing a Python SQL engine from scratch

\n\n

Toby Mao

\n\n

Introduction

\n\n

When I first started writing SQLGlot in early 2021, my goal was just to translate SQL queries from SparkSQL to Presto and vice versa. However, over the last year and a half, I've ended up with a full-fledged SQL engine. SQLGlot can now parse and transpile between 18 SQL dialects and can execute all 24 TPC-H SQL queries. The parser and engine are all written from scratch using Python.

\n\n

This post will cover why I went through the effort of creating a Python SQL engine and how a simple query goes from a string to actually transforming data. The following steps are briefly summarized:

\n\n\n\n

Why?

\n\n

I started working on SQLGlot because of my work on the experimentation and metrics platform at Netflix, where I built tools that allowed data scientists to define and compute SQL-based metrics. Netflix relied on multiple engines to query data (Spark, Presto, and Druid), so my team built the metrics platform around PyPika, a Python SQL query builder. This way, definitions could be reused across multiple engines. However, it became quickly apparent that writing python code to programmatically generate SQL was challenging for data scientists, especially those with academic backgrounds, since they were mostly familiar with R and SQL. At the time, the only Python SQL parser was sqlparse, which is not actually a parser but a tokenizer, so having users write raw SQL into the platform wasn't really an option. Some time later, I randomly stumbled across Crafting Interpreters and realized that I could use it as a guide towards creating my own SQL parser/transpiler.

\n\n

Why did I do this? Isn't a Python SQL engine going to be extremely slow?

\n\n

The main reason why I ended up building a SQL engine was...just for entertainment. It's been fun learning about all the things required to actually run a SQL query, and seeing it actually work is extremely rewarding. Before SQLGlot, I had zero experience with lexers, parsers, or compilers.

\n\n

In terms of practical use cases, I planned to use the Python SQL engine for unit testing SQL pipelines. Big data pipelines are tough to test because many of the engines are not open source and cannot be run locally. With SQLGlot, you can take a SQL query targeting a warehouse such as Snowflake and seamlessly run it in CI on mock Python data. It's easy to mock data and create arbitrary UDFs because everything is just Python. Although the implementation is slow and unsuitable for large amounts of data (> 1 million rows), there's very little overhead/startup and you can run queries on test data in a couple of milliseconds.

\n\n

Finally, the components that have been built to support execution can be used as a foundation for a faster engine. I'm inspired by what Apache Calcite has done for the JVM world. Even though Python is commonly used for data, there hasn't been a Calcite for Python. So, you could say that SQLGlot aims to be that framework. For example, it wouldn't take much work to replace the Python execution engine with numpy/pandas/arrow to become a respectably-performing query engine. The implementation would be able to leverage the parser, optimizer, and logical planner, only needing to implement physical execution. There is a lot of work in the Python ecosystem around high performance vectorized computation, which I think could benefit from a pure Python-based AST/plan. Parsing and planning doesn't have to be fast when the bottleneck of running queries is processing terabytes of data. So, having a Python-based ecosystem around SQL is beneficial given the ease of development in Python, despite not having bare metal performance.

\n\n

Parts of SQLGlot's toolkit are being used today by the following:

\n\n
    \n
  • Ibis: A Python library that provides a lightweight, universal interface for data wrangling.\n
      \n
    • Uses the Python SQL expression builder and leverages the optimizer/planner to convert SQL into dataframe operations.
    • \n
  • \n
  • mysql-mimic: Pure-Python implementation of the MySQL server wire protocol\n
      \n
    • Parses / transforms SQL and executes INFORMATION_SCHEMA queries.
    • \n
  • \n
  • Quokka: Push-based vectorized query engine\n
      \n
    • Parse and optimizes SQL.
    • \n
  • \n
  • Splink: Fast, accurate and scalable probabilistic data linkage using your choice of SQL backend.\n
      \n
    • Transpiles queries.
    • \n
  • \n
\n\n

How?

\n\n

There are many steps involved with actually running a simple query like:

\n\n
\n
SELECT\n  bar.a,\n  b + 1 AS b\nFROM bar\nJOIN baz\n  ON bar.a = baz.a\nWHERE bar.a > 1\n
\n
\n\n

In this post, I'll walk through all the steps SQLGlot takes to run this query over Python objects.

\n\n

Tokenizing

\n\n

The first step is to convert the sql string into a list of tokens. SQLGlot's tokenizer is quite simple and can be found here. In a while loop, it checks each character and either appends the character to the current token, or makes a new token.

\n\n

Running the SQLGlot tokenizer shows the output.

\n\n

\"Tokenizer

\n\n

Each keyword has been converted to a SQLGlot Token object. Each token has some metadata associated with it, like line/column information for error messages. Comments are also a part of the token, so that comments can be preserved.

\n\n

Parsing

\n\n

Once a SQL statement is tokenized, we don't need to worry about white space and other formatting, so it's easier to work with. We can now convert the list of tokens into an AST. The SQLGlot parser is a handwritten recursive descent parser.

\n\n

Similar to the tokenizer, it consumes the tokens sequentially, but it instead uses a recursive algorithm. The tokens are converted into a single AST node that presents the SQL query. The SQLGlot parser was designed to support various dialects, so it contains many options for overriding parsing functionality.

\n\n

\"Parser

\n\n

The AST is a generic representation of a given SQL query. Each dialect can override or implement its own generator, which can convert an AST object into syntatically-correct SQL.

\n\n

Optimizing

\n\n

Once we have our AST, we can transform it into an equivalent query that produces the same results more efficiently. When optimizing queries, most engines first convert the AST into a logical plan and then optimize the plan. However, I chose to optimize the AST directly for the following reasons:

\n\n
    \n
  1. It's easier to debug and validate the optimizations when the input and output are both SQL.

  2. \n
  3. Rules can be applied a la carte to transform SQL into a more desirable form.

  4. \n
  5. I wanted a way to generate 'canonical sql'. Having a canonical representation of SQL is useful for understanding if two queries are semantically equivalent (e.g. SELECT 1 + 1 and SELECT 2).

  6. \n
\n\n

I've yet to find another engine that takes this approach, but I'm quite happy with this decision. The optimizer currently does not perform any \"physical optimizations\" such as join reordering. Those are left to the execution layer, as additional statistics and information could become relevant.

\n\n

\"Optimizer

\n\n

The optimizer currently has 17 rules. Each of these rules is applied, transforming the AST in place. The combination of these rules creates \"canonical\" sql that can then be more easily converted into a logical plan and executed.

\n\n

Some example rules are:

\n\n

qualify_tables and qualify_columns

\n\n
    \n
  • Adds all db/catalog qualifiers to tables and forces an alias.
  • \n
  • Ensure each column is unambiguous and expand stars.
  • \n
\n\n
\n
SELECT * FROM x;\n\nSELECT "db"."x" AS "x";\n
\n
\n\n

simplify

\n\n

Boolean and math simplification. Check out all the test cases.

\n\n
\n
((NOT FALSE) AND (x = x)) AND (TRUE OR 1 <> 3);\nx = x;\n\n1 + 1;\n2;\n
\n
\n\n

normalize

\n\n

Attempts to convert all predicates into conjunctive normal form.

\n\n
\n
-- DNF\n(A AND B) OR (B AND C AND D);\n\n-- CNF\n(A OR C) AND (A OR D) AND B;\n
\n
\n\n

unnest_subqueries

\n\n

Converts subqueries in predicates into joins.

\n\n
\n
-- The subquery can be converted into a left join\nSELECT *\nFROM x AS x\nWHERE (\n  SELECT y.a AS a\n  FROM y AS y\n  WHERE x.a = y.a\n) = 1;\n\nSELECT *\nFROM x AS x\nLEFT JOIN (\n  SELECT y.a AS a\n  FROM y AS y\n  WHERE TRUE\n  GROUP BY y.a\n) AS "_u_0"\n  ON x.a = "_u_0".a\nWHERE ("_u_0".a = 1 AND NOT "_u_0".a IS NULL)\n
\n
\n\n

pushdown_predicates

\n\n

Push down filters into the innermost query.

\n\n
\n
SELECT *\nFROM (\n  SELECT *\n  FROM x AS x\n) AS y\nWHERE y.a = 1;\n\nSELECT *\nFROM (\n  SELECT *\n  FROM x AS x\n  WHERE y.a = 1\n) AS y WHERE TRUE\n
\n
\n\n

annotate_types

\n\n

Infer all types throughout the AST given schema information and function type definitions.

\n\n

Planning

\n\n

After the SQL AST has been \"optimized\", it's much easier to convert into a logical plan. The AST is traversed and converted into a DAG consisting of one of five steps. The different steps are:

\n\n

Scan

\n\n

Selects columns from a table, applies projections, and finally filters the table.

\n\n

Sort

\n\n

Sorts a table for order by expressions.

\n\n

Set

\n\n

Applies the operators union/union all/except/intersect.

\n\n

Aggregate

\n\n

Applies an aggregation/group by.

\n\n

Join

\n\n

Joins multiple tables together.

\n\n

\"Planner

\n\n

The logical plan is quite simple and contains the information required to convert it into a physical plan (execution).

\n\n

Executing

\n\n

Finally, we can actually execute the SQL query. The Python engine is not fast, but it's very small (~400 LOC)! It iterates the DAG with a queue and runs each step, passing each intermediary table to the next step.

\n\n

In order to keep things simple, it evaluates expressions with eval. Because SQLGlot was built primarily to be a transpiler, it was simple to create a \"Python SQL\" dialect. So a SQL expression x + 1 can just be converted into scope['x'] + 1.

\n\n

\"Executor

\n\n

What's next

\n\n

SQLGlot's main focus will always be on parsing/transpiling, but I plan to continue development on the execution engine. I'd like to pass TPC-DS. If someone doesn't beat me to it, I may even take a stab at writing a Pandas/Arrow execution engine.

\n\n

I'm hoping that over time, SQLGlot will spark the Python SQL ecosystem just like Calcite has for Java.

\n\n

Special thanks

\n\n

SQLGlot would not be what it is without it's core contributors. In particular, the execution engine would not exist without Barak Alon and George Sittas.

\n\n

Get in touch

\n\n

If you'd like to chat more about SQLGlot, please join my Slack Channel!

\n\n
\n"}, "sqlglot.executor.execute": {"fullname": "sqlglot.executor.execute", "modulename": "sqlglot.executor", "qualname": "execute", "kind": "function", "doc": "

Run a sql query against data.

\n\n
Arguments:
\n\n
    \n
  • sql: a sql statement.
  • \n
  • schema: database schema.\nThis can either be an instance of Schema or a mapping in one of the following forms:\n
      \n
    1. {table: {col: type}}
    2. \n
    3. {db: {table: {col: type}}}
    4. \n
    5. {catalog: {db: {table: {col: type}}}}
    6. \n
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • tables: additional tables to register.
  • \n
\n\n
Returns:
\n\n
\n

Simple columnar data structure.

\n
\n", "signature": "(\tsql: str | sqlglot.expressions.Expression,\tschema: Union[Dict, sqlglot.schema.Schema, NoneType] = None,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\ttables: Optional[Dict] = None) -> sqlglot.executor.table.Table:", "funcdef": "def"}, "sqlglot.executor.context": {"fullname": "sqlglot.executor.context", "modulename": "sqlglot.executor.context", "kind": "module", "doc": "

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Execution context for sql expressions.

\n\n

Context is used to hold relevant data tables which can then be queried on with eval.

\n\n

References to columns can either be scalar or vectors. When set_row is used, column references\nevaluate to scalars while set_range evaluates to vectors. This allows convenient and efficient\nevaluation of aggregation functions.

\n"}, "sqlglot.executor.context.Context.__init__": {"fullname": "sqlglot.executor.context.Context.__init__", "modulename": "sqlglot.executor.context", "qualname": "Context.__init__", "kind": "function", "doc": "

Args\n tables: representing the scope of the current execution context.\n env: dictionary of functions within the execution context.

\n", "signature": "(\ttables: Dict[str, sqlglot.executor.table.Table],\tenv: Optional[Dict] = None)"}, "sqlglot.executor.context.Context.eval": {"fullname": "sqlglot.executor.context.Context.eval", "modulename": "sqlglot.executor.context", "qualname": "Context.eval", "kind": "function", "doc": "

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\n"}, "sqlglot.executor.env.reverse_key.__init__": {"fullname": "sqlglot.executor.env.reverse_key.__init__", "modulename": "sqlglot.executor.env", "qualname": "reverse_key.__init__", "kind": "function", "doc": "

\n", "signature": "(obj)"}, "sqlglot.executor.env.filter_nulls": {"fullname": "sqlglot.executor.env.filter_nulls", "modulename": "sqlglot.executor.env", "qualname": "filter_nulls", "kind": "function", "doc": "

\n", "signature": "(func, empty_null=True):", "funcdef": "def"}, "sqlglot.executor.env.null_if_any": {"fullname": "sqlglot.executor.env.null_if_any", "modulename": "sqlglot.executor.env", "qualname": "null_if_any", "kind": "function", "doc": "

Decorator that makes a function return None if any of the required arguments are None.

\n\n

This also supports decoration with no arguments, e.g.:

\n\n
@null_if_any\ndef foo(a, b): ...\n
\n\n

In which case all arguments are required.

\n", "signature": "(*required):", "funcdef": "def"}, "sqlglot.executor.env.str_position": {"fullname": "sqlglot.executor.env.str_position", "modulename": "sqlglot.executor.env", "qualname": "str_position", "kind": "function", "doc": "

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Convert a SQL expression into literal Python code and compile it into bytecode.

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.generate_tuple": {"fullname": "sqlglot.executor.python.PythonExecutor.generate_tuple", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.generate_tuple", "kind": "function", "doc": "

Convert an array of SQL expressions into tuple of Python byte code.

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\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.executor.python.Python.Tokenizer": {"fullname": "sqlglot.executor.python.Python.Tokenizer", "modulename": "sqlglot.executor.python", "qualname": "Python.Tokenizer", "kind": "class", "doc": "

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Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.executor.table": {"fullname": "sqlglot.executor.table", "modulename": "sqlglot.executor.table", "kind": "module", "doc": "

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\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.executor.table.TableIter": {"fullname": "sqlglot.executor.table.TableIter", "modulename": "sqlglot.executor.table", "qualname": "TableIter", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.TableIter.__init__": {"fullname": "sqlglot.executor.table.TableIter.__init__", "modulename": "sqlglot.executor.table", "qualname": "TableIter.__init__", "kind": "function", "doc": "

\n", "signature": "(table)"}, "sqlglot.executor.table.RangeReader": {"fullname": "sqlglot.executor.table.RangeReader", "modulename": "sqlglot.executor.table", "qualname": "RangeReader", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.RangeReader.__init__": {"fullname": "sqlglot.executor.table.RangeReader.__init__", "modulename": "sqlglot.executor.table", "qualname": "RangeReader.__init__", "kind": "function", "doc": "

\n", "signature": "(table)"}, "sqlglot.executor.table.RowReader": {"fullname": "sqlglot.executor.table.RowReader", "modulename": "sqlglot.executor.table", "qualname": "RowReader", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.RowReader.__init__": {"fullname": "sqlglot.executor.table.RowReader.__init__", "modulename": "sqlglot.executor.table", "qualname": "RowReader.__init__", "kind": "function", "doc": "

\n", "signature": "(columns, column_range=None)"}, "sqlglot.executor.table.Tables": {"fullname": "sqlglot.executor.table.Tables", "modulename": "sqlglot.executor.table", "qualname": "Tables", "kind": "class", "doc": "

Abstract base class for generic types.

\n\n

A generic type is typically declared by inheriting from\nthis class parameterized with one or more type variables.\nFor example, a generic mapping type might be defined as::

\n\n

class Mapping(Generic[KT, VT]):\n def __getitem__(self, key: KT) -> VT:\n ...\n # Etc.

\n\n

This class can then be used as follows::

\n\n

def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT:\n try:\n return mapping[key]\n except KeyError:\n return default

\n", "bases": "sqlglot.schema.AbstractMappingSchema[sqlglot.executor.table.Table]"}, "sqlglot.executor.table.ensure_tables": {"fullname": "sqlglot.executor.table.ensure_tables", "modulename": "sqlglot.executor.table", "qualname": "ensure_tables", "kind": "function", "doc": "

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Expressions

\n\n

Every AST node in SQLGlot is represented by a subclass of Expression.

\n\n

This module contains the implementation of all supported Expression types. Additionally,\nit exposes a number of helper functions, which are mainly used to programmatically build\nSQL expressions, such as sqlglot.expressions.select.

\n\n
\n"}, "sqlglot.expressions.Expression": {"fullname": "sqlglot.expressions.Expression", "modulename": "sqlglot.expressions", "qualname": "Expression", "kind": "class", "doc": "

The base class for all expressions in a syntax tree. Each Expression encapsulates any necessary\ncontext, such as its child expressions, their names (arg keys), and whether a given child expression\nis optional or not.

\n\n
Attributes:
\n\n
    \n
  • key: a unique key for each class in the Expression hierarchy. This is useful for hashing\nand representing expressions as strings.
  • \n
  • arg_types: determines what arguments (child nodes) are supported by an expression. It\nmaps arg keys to booleans that indicate whether the corresponding args are optional.
  • \n
\n\n
Example:
\n\n
\n
\n
>>> class Foo(Expression):\n...     arg_types = {"this": True, "expression": False}\n
\n
\n \n

The above definition informs us that Foo is an Expression that requires an argument called\n \"this\" and may also optionally receive an argument called \"expression\".

\n
\n\n
Arguments:
\n\n
    \n
  • args: a mapping used for retrieving the arguments of an expression, given their arg keys.
  • \n
  • parent: a reference to the parent expression (or None, in case of root expressions).
  • \n
  • arg_key: the arg key an expression is associated with, i.e. the name its parent expression\nuses to refer to it.
  • \n
  • comments: a list of comments that are associated with a given expression. This is used in\norder to preserve comments when transpiling SQL code.
  • \n
  • _type: the sqlglot.expressions.DataType type of an expression. This is inferred by the\noptimizer, in order to enable some transformations that require type information.
  • \n
\n"}, "sqlglot.expressions.Expression.__init__": {"fullname": "sqlglot.expressions.Expression.__init__", "modulename": "sqlglot.expressions", "qualname": "Expression.__init__", "kind": "function", "doc": "

\n", "signature": "(**args: Any)"}, "sqlglot.expressions.Expression.this": {"fullname": "sqlglot.expressions.Expression.this", "modulename": "sqlglot.expressions", "qualname": "Expression.this", "kind": "variable", "doc": "

Retrieves the argument with key \"this\".

\n"}, "sqlglot.expressions.Expression.expression": {"fullname": "sqlglot.expressions.Expression.expression", "modulename": "sqlglot.expressions", "qualname": "Expression.expression", "kind": "variable", "doc": "

Retrieves the argument with key \"expression\".

\n"}, "sqlglot.expressions.Expression.expressions": {"fullname": "sqlglot.expressions.Expression.expressions", "modulename": "sqlglot.expressions", "qualname": "Expression.expressions", "kind": "variable", "doc": "

Retrieves the argument with key \"expressions\".

\n"}, "sqlglot.expressions.Expression.text": {"fullname": "sqlglot.expressions.Expression.text", "modulename": "sqlglot.expressions", "qualname": "Expression.text", "kind": "function", "doc": "

Returns a textual representation of the argument corresponding to \"key\". This can only be used\nfor args that are strings or leaf Expression instances, such as identifiers and literals.

\n", "signature": "(self, key) -> str:", "funcdef": "def"}, "sqlglot.expressions.Expression.is_string": {"fullname": "sqlglot.expressions.Expression.is_string", "modulename": "sqlglot.expressions", "qualname": "Expression.is_string", "kind": "variable", "doc": "

Checks whether a Literal expression is a string.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_number": {"fullname": "sqlglot.expressions.Expression.is_number", "modulename": "sqlglot.expressions", "qualname": "Expression.is_number", "kind": "variable", "doc": "

Checks whether a Literal expression is a number.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_int": {"fullname": "sqlglot.expressions.Expression.is_int", "modulename": "sqlglot.expressions", "qualname": "Expression.is_int", "kind": "variable", "doc": "

Checks whether a Literal expression is an integer.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_star": {"fullname": "sqlglot.expressions.Expression.is_star", "modulename": "sqlglot.expressions", "qualname": "Expression.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.alias": {"fullname": "sqlglot.expressions.Expression.alias", "modulename": "sqlglot.expressions", "qualname": "Expression.alias", "kind": "variable", "doc": "

Returns the alias of the expression, or an empty string if it's not aliased.

\n", "annotation": ": str"}, "sqlglot.expressions.Expression.output_name": {"fullname": "sqlglot.expressions.Expression.output_name", "modulename": "sqlglot.expressions", "qualname": "Expression.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Expression.copy": {"fullname": "sqlglot.expressions.Expression.copy", "modulename": "sqlglot.expressions", "qualname": "Expression.copy", "kind": "function", "doc": "

Returns a deep copy of the expression.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.append": {"fullname": "sqlglot.expressions.Expression.append", "modulename": "sqlglot.expressions", "qualname": "Expression.append", "kind": "function", "doc": "

Appends value to arg_key if it's a list or sets it as a new list.

\n\n
Arguments:
\n\n
    \n
  • arg_key (str): name of the list expression arg
  • \n
  • value (Any): value to append to the list
  • \n
\n", "signature": "(self, arg_key, value):", "funcdef": "def"}, "sqlglot.expressions.Expression.set": {"fullname": "sqlglot.expressions.Expression.set", "modulename": "sqlglot.expressions", "qualname": "Expression.set", "kind": "function", "doc": "

Sets arg_key to value.

\n\n
Arguments:
\n\n
    \n
  • arg_key (str): name of the expression arg.
  • \n
  • value: value to set the arg to.
  • \n
\n", "signature": "(self, arg_key, value):", "funcdef": "def"}, "sqlglot.expressions.Expression.depth": {"fullname": "sqlglot.expressions.Expression.depth", "modulename": "sqlglot.expressions", "qualname": "Expression.depth", "kind": "variable", "doc": "

Returns the depth of this tree.

\n"}, "sqlglot.expressions.Expression.find": {"fullname": "sqlglot.expressions.Expression.find", "modulename": "sqlglot.expressions", "qualname": "Expression.find", "kind": "function", "doc": "

Returns the first node in this tree which matches at least one of\nthe specified types.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The node which matches the criteria or None if no such node was found.

\n
\n", "signature": "(self, *expression_types: Type[~E], bfs=True) -> Optional[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.find_all": {"fullname": "sqlglot.expressions.Expression.find_all", "modulename": "sqlglot.expressions", "qualname": "Expression.find_all", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree and only\nyields those that match at least one of the specified expression types.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, *expression_types: Type[~E], bfs=True) -> Iterator[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.find_ancestor": {"fullname": "sqlglot.expressions.Expression.find_ancestor", "modulename": "sqlglot.expressions", "qualname": "Expression.find_ancestor", "kind": "function", "doc": "

Returns a nearest parent matching expression_types.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The parent node.

\n
\n", "signature": "(self, *expression_types: Type[~E]) -> Optional[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.parent_select": {"fullname": "sqlglot.expressions.Expression.parent_select", "modulename": "sqlglot.expressions", "qualname": "Expression.parent_select", "kind": "variable", "doc": "

Returns the parent select statement.

\n"}, "sqlglot.expressions.Expression.root": {"fullname": "sqlglot.expressions.Expression.root", "modulename": "sqlglot.expressions", "qualname": "Expression.root", "kind": "function", "doc": "

Returns the root expression of this tree.

\n", "signature": "(self) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.Expression.walk": {"fullname": "sqlglot.expressions.Expression.walk", "modulename": "sqlglot.expressions", "qualname": "Expression.walk", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree.

\n\n
Arguments:
\n\n
    \n
  • bfs (bool): if set to True the BFS traversal order will be applied,\notherwise the DFS traversal will be used instead.
  • \n
  • prune ((node, parent, arg_key) -> bool): callable that returns True if\nthe generator should stop traversing this branch of the tree.
  • \n
\n\n
Returns:
\n\n
\n

the generator object.

\n
\n", "signature": "(self, bfs=True, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.dfs": {"fullname": "sqlglot.expressions.Expression.dfs", "modulename": "sqlglot.expressions", "qualname": "Expression.dfs", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree in\nthe DFS (Depth-first) order.

\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, parent=None, key=None, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.bfs": {"fullname": "sqlglot.expressions.Expression.bfs", "modulename": "sqlglot.expressions", "qualname": "Expression.bfs", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree in\nthe BFS (Breadth-first) order.

\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.unnest": {"fullname": "sqlglot.expressions.Expression.unnest", "modulename": "sqlglot.expressions", "qualname": "Expression.unnest", "kind": "function", "doc": "

Returns the first non parenthesis child or self.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.unalias": {"fullname": "sqlglot.expressions.Expression.unalias", "modulename": "sqlglot.expressions", "qualname": "Expression.unalias", "kind": "function", "doc": "

Returns the inner expression if this is an Alias.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.unnest_operands": {"fullname": "sqlglot.expressions.Expression.unnest_operands", "modulename": "sqlglot.expressions", "qualname": "Expression.unnest_operands", "kind": "function", "doc": "

Returns unnested operands as a tuple.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.flatten": {"fullname": "sqlglot.expressions.Expression.flatten", "modulename": "sqlglot.expressions", "qualname": "Expression.flatten", "kind": "function", "doc": "

Returns a generator which yields child nodes who's parents are the same class.

\n\n

A AND B AND C -> [A, B, C]

\n", "signature": "(self, unnest=True):", "funcdef": "def"}, "sqlglot.expressions.Expression.sql": {"fullname": "sqlglot.expressions.Expression.sql", "modulename": "sqlglot.expressions", "qualname": "Expression.sql", "kind": "function", "doc": "

Returns SQL string representation of this tree.

\n\n
Arguments:
\n\n
    \n
  • dialect: the dialect of the output SQL string (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • opts: other sqlglot.generator.Generator options.
  • \n
\n\n
Returns:
\n\n
\n

The SQL string.

\n
\n", "signature": "(\tself,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> str:", "funcdef": "def"}, "sqlglot.expressions.Expression.transform": {"fullname": "sqlglot.expressions.Expression.transform", "modulename": "sqlglot.expressions", "qualname": "Expression.transform", "kind": "function", "doc": "

Recursively visits all tree nodes (excluding already transformed ones)\nand applies the given transformation function to each node.

\n\n
Arguments:
\n\n
    \n
  • fun (function): a function which takes a node as an argument and returns a\nnew transformed node or the same node without modifications. If the function\nreturns None, then the corresponding node will be removed from the syntax tree.
  • \n
  • copy (bool): if set to True a new tree instance is constructed, otherwise the tree is\nmodified in place.
  • \n
\n\n
Returns:
\n\n
\n

The transformed tree.

\n
\n", "signature": "(self, fun, *args, copy=True, **kwargs):", "funcdef": "def"}, "sqlglot.expressions.Expression.replace": {"fullname": "sqlglot.expressions.Expression.replace", "modulename": "sqlglot.expressions", "qualname": "Expression.replace", "kind": "function", "doc": "

Swap out this expression with a new expression.

\n\n

For example::

\n\n
>>> tree = Select().select(\"x\").from_(\"tbl\")\n>>> tree.find(Column).replace(Column(this=\"y\"))\n(COLUMN this: y)\n>>> tree.sql()\n'SELECT y FROM tbl'\n
\n\n
Arguments:
\n\n
    \n
  • expression (Expression|None): new node
  • \n
\n\n
Returns:
\n\n
\n

The new expression or expressions.

\n
\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.expressions.Expression.pop": {"fullname": "sqlglot.expressions.Expression.pop", "modulename": "sqlglot.expressions", "qualname": "Expression.pop", "kind": "function", "doc": "

Remove this expression from its AST.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.assert_is": {"fullname": "sqlglot.expressions.Expression.assert_is", "modulename": "sqlglot.expressions", "qualname": "Expression.assert_is", "kind": "function", "doc": "

Assert that this Expression is an instance of type_.

\n\n

If it is NOT an instance of type_, this raises an assertion error.\nOtherwise, this returns this expression.

\n\n
Examples:
\n\n
\n

This is useful for type security in chained expressions:

\n \n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT x from y").assert_is(Select).select("z").sql()\n'SELECT x, z FROM y'\n
\n
\n
\n", "signature": "(self, type_):", "funcdef": "def"}, "sqlglot.expressions.Expression.error_messages": {"fullname": "sqlglot.expressions.Expression.error_messages", "modulename": "sqlglot.expressions", "qualname": "Expression.error_messages", "kind": "function", "doc": "

Checks if this expression is valid (e.g. all mandatory args are set).

\n\n
Arguments:
\n\n
    \n
  • args: a sequence of values that were used to instantiate a Func expression. This is used\nto check that the provided arguments don't exceed the function argument limit.
  • \n
\n\n
Returns:
\n\n
\n

A list of error messages for all possible errors that were found.

\n
\n", "signature": "(self, args: Optional[Sequence] = None) -> List[str]:", "funcdef": "def"}, "sqlglot.expressions.Expression.dump": {"fullname": "sqlglot.expressions.Expression.dump", "modulename": "sqlglot.expressions", "qualname": "Expression.dump", "kind": "function", "doc": "

Dump this Expression to a JSON-serializable dict.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.load": {"fullname": "sqlglot.expressions.Expression.load", "modulename": "sqlglot.expressions", "qualname": "Expression.load", "kind": "function", "doc": "

Load a dict (as returned by Expression.dump) into an Expression instance.

\n", "signature": "(cls, obj):", "funcdef": "def"}, "sqlglot.expressions.Condition": {"fullname": "sqlglot.expressions.Condition", "modulename": "sqlglot.expressions", "qualname": "Condition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Condition.and_": {"fullname": "sqlglot.expressions.Condition.and_", "modulename": "sqlglot.expressions", "qualname": "Condition.and_", "kind": "function", "doc": "

AND this condition with one or multiple expressions.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").and_("y=1").sql()\n'x = 1 AND y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

And: the new condition.

\n
\n", "signature": "(self, *expressions, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Condition.or_": {"fullname": "sqlglot.expressions.Condition.or_", "modulename": "sqlglot.expressions", "qualname": "Condition.or_", "kind": "function", "doc": "

OR this condition with one or multiple expressions.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").or_("y=1").sql()\n'x = 1 OR y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Or: the new condition.

\n
\n", "signature": "(self, *expressions, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Condition.not_": {"fullname": "sqlglot.expressions.Condition.not_", "modulename": "sqlglot.expressions", "qualname": "Condition.not_", "kind": "function", "doc": "

Wrap this condition with NOT.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").not_().sql()\n'NOT x = 1'\n
\n
\n
\n\n
Returns:
\n\n
\n

Not: the new condition.

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Predicate": {"fullname": "sqlglot.expressions.Predicate", "modulename": "sqlglot.expressions", "qualname": "Predicate", "kind": "class", "doc": "

Relationships like x = y, x > 1, x >= y.

\n", "bases": "Condition"}, "sqlglot.expressions.DerivedTable": {"fullname": "sqlglot.expressions.DerivedTable", "modulename": "sqlglot.expressions", "qualname": "DerivedTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unionable": {"fullname": "sqlglot.expressions.Unionable", "modulename": "sqlglot.expressions", "qualname": "Unionable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unionable.union": {"fullname": "sqlglot.expressions.Unionable.union", "modulename": "sqlglot.expressions", "qualname": "Unionable.union", "kind": "function", "doc": "

Builds a UNION expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()\n'SELECT * FROM foo UNION SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the Union expression.

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Unionable.intersect": {"fullname": "sqlglot.expressions.Unionable.intersect", "modulename": "sqlglot.expressions", "qualname": "Unionable.intersect", "kind": "function", "doc": "

Builds an INTERSECT expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()\n'SELECT * FROM foo INTERSECT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Intersect: the Intersect expression

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Unionable.except_": {"fullname": "sqlglot.expressions.Unionable.except_", "modulename": "sqlglot.expressions", "qualname": "Unionable.except_", "kind": "function", "doc": "

Builds an EXCEPT expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()\n'SELECT * FROM foo EXCEPT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Except: the Except expression

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.UDTF": {"fullname": "sqlglot.expressions.UDTF", "modulename": "sqlglot.expressions", "qualname": "UDTF", "kind": "class", "doc": "

\n", "bases": "DerivedTable, Unionable"}, "sqlglot.expressions.Cache": {"fullname": "sqlglot.expressions.Cache", "modulename": "sqlglot.expressions", "qualname": "Cache", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Uncache": {"fullname": "sqlglot.expressions.Uncache", "modulename": "sqlglot.expressions", "qualname": "Uncache", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Create": {"fullname": "sqlglot.expressions.Create", "modulename": "sqlglot.expressions", "qualname": "Create", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Describe": {"fullname": "sqlglot.expressions.Describe", "modulename": "sqlglot.expressions", "qualname": "Describe", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Set": {"fullname": "sqlglot.expressions.Set", "modulename": "sqlglot.expressions", "qualname": "Set", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SetItem": {"fullname": "sqlglot.expressions.SetItem", "modulename": "sqlglot.expressions", "qualname": "SetItem", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Show": {"fullname": "sqlglot.expressions.Show", "modulename": "sqlglot.expressions", "qualname": "Show", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.UserDefinedFunction": {"fullname": "sqlglot.expressions.UserDefinedFunction", "modulename": "sqlglot.expressions", "qualname": "UserDefinedFunction", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.CharacterSet": {"fullname": "sqlglot.expressions.CharacterSet", "modulename": "sqlglot.expressions", "qualname": "CharacterSet", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.With": {"fullname": "sqlglot.expressions.With", "modulename": "sqlglot.expressions", "qualname": "With", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.WithinGroup": {"fullname": "sqlglot.expressions.WithinGroup", "modulename": "sqlglot.expressions", "qualname": "WithinGroup", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.CTE": {"fullname": "sqlglot.expressions.CTE", "modulename": "sqlglot.expressions", "qualname": "CTE", "kind": "class", "doc": "

\n", "bases": "DerivedTable"}, "sqlglot.expressions.TableAlias": {"fullname": "sqlglot.expressions.TableAlias", "modulename": "sqlglot.expressions", "qualname": "TableAlias", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.BitString": {"fullname": "sqlglot.expressions.BitString", "modulename": "sqlglot.expressions", "qualname": "BitString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.HexString": {"fullname": "sqlglot.expressions.HexString", "modulename": "sqlglot.expressions", "qualname": "HexString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.ByteString": {"fullname": "sqlglot.expressions.ByteString", "modulename": "sqlglot.expressions", "qualname": "ByteString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Column": {"fullname": "sqlglot.expressions.Column", "modulename": "sqlglot.expressions", "qualname": "Column", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Column.output_name": {"fullname": "sqlglot.expressions.Column.output_name", "modulename": "sqlglot.expressions", "qualname": "Column.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n", "annotation": ": str"}, "sqlglot.expressions.ColumnDef": {"fullname": "sqlglot.expressions.ColumnDef", "modulename": "sqlglot.expressions", "qualname": "ColumnDef", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AlterColumn": {"fullname": "sqlglot.expressions.AlterColumn", "modulename": "sqlglot.expressions", "qualname": "AlterColumn", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.RenameTable": {"fullname": "sqlglot.expressions.RenameTable", "modulename": "sqlglot.expressions", "qualname": "RenameTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SetTag": {"fullname": "sqlglot.expressions.SetTag", "modulename": "sqlglot.expressions", "qualname": "SetTag", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Comment": {"fullname": "sqlglot.expressions.Comment", "modulename": "sqlglot.expressions", "qualname": "Comment", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ColumnConstraint": {"fullname": "sqlglot.expressions.ColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "ColumnConstraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ColumnConstraintKind": {"fullname": "sqlglot.expressions.ColumnConstraintKind", "modulename": "sqlglot.expressions", "qualname": "ColumnConstraintKind", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AutoIncrementColumnConstraint": {"fullname": "sqlglot.expressions.AutoIncrementColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "AutoIncrementColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CaseSpecificColumnConstraint": {"fullname": "sqlglot.expressions.CaseSpecificColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CaseSpecificColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CharacterSetColumnConstraint": {"fullname": "sqlglot.expressions.CharacterSetColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CharacterSetColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CheckColumnConstraint": {"fullname": "sqlglot.expressions.CheckColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CheckColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CollateColumnConstraint": {"fullname": "sqlglot.expressions.CollateColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CollateColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CommentColumnConstraint": {"fullname": "sqlglot.expressions.CommentColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CommentColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CompressColumnConstraint": {"fullname": "sqlglot.expressions.CompressColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CompressColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.DateFormatColumnConstraint": {"fullname": "sqlglot.expressions.DateFormatColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "DateFormatColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.DefaultColumnConstraint": {"fullname": "sqlglot.expressions.DefaultColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "DefaultColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.EncodeColumnConstraint": {"fullname": "sqlglot.expressions.EncodeColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "EncodeColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.GeneratedAsIdentityColumnConstraint": {"fullname": "sqlglot.expressions.GeneratedAsIdentityColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "GeneratedAsIdentityColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.InlineLengthColumnConstraint": {"fullname": "sqlglot.expressions.InlineLengthColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "InlineLengthColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.NotNullColumnConstraint": {"fullname": "sqlglot.expressions.NotNullColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "NotNullColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.PrimaryKeyColumnConstraint": {"fullname": "sqlglot.expressions.PrimaryKeyColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "PrimaryKeyColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.TitleColumnConstraint": {"fullname": "sqlglot.expressions.TitleColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "TitleColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.UniqueColumnConstraint": {"fullname": "sqlglot.expressions.UniqueColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "UniqueColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.UppercaseColumnConstraint": {"fullname": "sqlglot.expressions.UppercaseColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "UppercaseColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.PathColumnConstraint": {"fullname": "sqlglot.expressions.PathColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "PathColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.Constraint": {"fullname": "sqlglot.expressions.Constraint", "modulename": "sqlglot.expressions", "qualname": "Constraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Delete": {"fullname": "sqlglot.expressions.Delete", "modulename": "sqlglot.expressions", "qualname": "Delete", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Drop": {"fullname": "sqlglot.expressions.Drop", "modulename": "sqlglot.expressions", "qualname": "Drop", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Filter": {"fullname": "sqlglot.expressions.Filter", "modulename": "sqlglot.expressions", "qualname": "Filter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Check": {"fullname": "sqlglot.expressions.Check", "modulename": "sqlglot.expressions", "qualname": "Check", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Directory": {"fullname": "sqlglot.expressions.Directory", "modulename": "sqlglot.expressions", "qualname": "Directory", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ForeignKey": {"fullname": "sqlglot.expressions.ForeignKey", "modulename": "sqlglot.expressions", "qualname": "ForeignKey", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.PrimaryKey": {"fullname": "sqlglot.expressions.PrimaryKey", "modulename": "sqlglot.expressions", "qualname": "PrimaryKey", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unique": {"fullname": "sqlglot.expressions.Unique", "modulename": "sqlglot.expressions", "qualname": "Unique", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Into": {"fullname": "sqlglot.expressions.Into", "modulename": "sqlglot.expressions", "qualname": "Into", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.From": {"fullname": "sqlglot.expressions.From", "modulename": "sqlglot.expressions", "qualname": "From", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Having": {"fullname": "sqlglot.expressions.Having", "modulename": "sqlglot.expressions", "qualname": "Having", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Hint": {"fullname": "sqlglot.expressions.Hint", "modulename": "sqlglot.expressions", "qualname": "Hint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.JoinHint": {"fullname": "sqlglot.expressions.JoinHint", "modulename": "sqlglot.expressions", "qualname": "JoinHint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Identifier": {"fullname": "sqlglot.expressions.Identifier", "modulename": "sqlglot.expressions", "qualname": "Identifier", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Identifier.output_name": {"fullname": "sqlglot.expressions.Identifier.output_name", "modulename": "sqlglot.expressions", "qualname": "Identifier.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Index": {"fullname": "sqlglot.expressions.Index", "modulename": "sqlglot.expressions", "qualname": "Index", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Insert": {"fullname": "sqlglot.expressions.Insert", "modulename": "sqlglot.expressions", "qualname": "Insert", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Introducer": {"fullname": "sqlglot.expressions.Introducer", "modulename": "sqlglot.expressions", "qualname": "Introducer", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.National": {"fullname": "sqlglot.expressions.National", "modulename": "sqlglot.expressions", "qualname": "National", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.LoadData": {"fullname": "sqlglot.expressions.LoadData", "modulename": "sqlglot.expressions", "qualname": "LoadData", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Partition": {"fullname": "sqlglot.expressions.Partition", "modulename": "sqlglot.expressions", "qualname": "Partition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Fetch": {"fullname": "sqlglot.expressions.Fetch", "modulename": "sqlglot.expressions", "qualname": "Fetch", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Group": {"fullname": "sqlglot.expressions.Group", "modulename": "sqlglot.expressions", "qualname": "Group", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Lambda": {"fullname": "sqlglot.expressions.Lambda", "modulename": "sqlglot.expressions", "qualname": "Lambda", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Limit": {"fullname": "sqlglot.expressions.Limit", "modulename": "sqlglot.expressions", "qualname": "Limit", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Literal": {"fullname": "sqlglot.expressions.Literal", "modulename": "sqlglot.expressions", "qualname": "Literal", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Literal.number": {"fullname": "sqlglot.expressions.Literal.number", "modulename": "sqlglot.expressions", "qualname": "Literal.number", "kind": "function", "doc": "

\n", "signature": "(cls, number) -> sqlglot.expressions.Literal:", "funcdef": "def"}, "sqlglot.expressions.Literal.string": {"fullname": "sqlglot.expressions.Literal.string", "modulename": "sqlglot.expressions", "qualname": "Literal.string", "kind": "function", "doc": "

\n", "signature": "(cls, string) -> sqlglot.expressions.Literal:", "funcdef": "def"}, "sqlglot.expressions.Literal.output_name": {"fullname": "sqlglot.expressions.Literal.output_name", "modulename": "sqlglot.expressions", "qualname": "Literal.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Join": {"fullname": "sqlglot.expressions.Join", "modulename": "sqlglot.expressions", "qualname": "Join", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Join.on": {"fullname": "sqlglot.expressions.Join.on", "modulename": "sqlglot.expressions", "qualname": "Join.on", "kind": "function", "doc": "

Append to or set the ON expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()\n'JOIN x ON y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Join: the modified join expression.

\n
\n", "signature": "(self, *expressions, append=True, dialect=None, copy=True, **opts):", "funcdef": "def"}, "sqlglot.expressions.Join.using": {"fullname": "sqlglot.expressions.Join.using", "modulename": "sqlglot.expressions", "qualname": "Join.using", "kind": "function", "doc": "

Append to or set the USING expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()\n'JOIN x USING (foo, bla)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, concatenate the new expressions to the existing \"using\" list.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Join: the modified join expression.

\n
\n", "signature": "(self, *expressions, append=True, dialect=None, copy=True, **opts):", "funcdef": "def"}, "sqlglot.expressions.Lateral": {"fullname": "sqlglot.expressions.Lateral", "modulename": "sqlglot.expressions", "qualname": "Lateral", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.MatchRecognize": {"fullname": "sqlglot.expressions.MatchRecognize", "modulename": "sqlglot.expressions", "qualname": "MatchRecognize", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Final": {"fullname": "sqlglot.expressions.Final", "modulename": "sqlglot.expressions", "qualname": "Final", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Offset": {"fullname": "sqlglot.expressions.Offset", "modulename": "sqlglot.expressions", "qualname": "Offset", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Order": {"fullname": "sqlglot.expressions.Order", "modulename": "sqlglot.expressions", "qualname": "Order", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Cluster": {"fullname": "sqlglot.expressions.Cluster", "modulename": "sqlglot.expressions", "qualname": "Cluster", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Distribute": {"fullname": "sqlglot.expressions.Distribute", "modulename": "sqlglot.expressions", "qualname": "Distribute", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Sort": {"fullname": "sqlglot.expressions.Sort", "modulename": "sqlglot.expressions", "qualname": "Sort", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Ordered": {"fullname": "sqlglot.expressions.Ordered", "modulename": "sqlglot.expressions", "qualname": "Ordered", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Property": {"fullname": "sqlglot.expressions.Property", "modulename": "sqlglot.expressions", "qualname": "Property", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AfterJournalProperty": {"fullname": "sqlglot.expressions.AfterJournalProperty", "modulename": "sqlglot.expressions", "qualname": "AfterJournalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.AlgorithmProperty": {"fullname": "sqlglot.expressions.AlgorithmProperty", "modulename": "sqlglot.expressions", "qualname": "AlgorithmProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.AutoIncrementProperty": {"fullname": "sqlglot.expressions.AutoIncrementProperty", "modulename": "sqlglot.expressions", "qualname": "AutoIncrementProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.BlockCompressionProperty": {"fullname": "sqlglot.expressions.BlockCompressionProperty", "modulename": "sqlglot.expressions", "qualname": "BlockCompressionProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.CharacterSetProperty": {"fullname": "sqlglot.expressions.CharacterSetProperty", "modulename": "sqlglot.expressions", "qualname": "CharacterSetProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ChecksumProperty": {"fullname": "sqlglot.expressions.ChecksumProperty", "modulename": "sqlglot.expressions", "qualname": "ChecksumProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.CollateProperty": {"fullname": "sqlglot.expressions.CollateProperty", "modulename": "sqlglot.expressions", "qualname": "CollateProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DataBlocksizeProperty": {"fullname": "sqlglot.expressions.DataBlocksizeProperty", "modulename": "sqlglot.expressions", "qualname": "DataBlocksizeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DefinerProperty": {"fullname": "sqlglot.expressions.DefinerProperty", "modulename": "sqlglot.expressions", "qualname": "DefinerProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DistKeyProperty": {"fullname": "sqlglot.expressions.DistKeyProperty", "modulename": "sqlglot.expressions", "qualname": "DistKeyProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DistStyleProperty": {"fullname": "sqlglot.expressions.DistStyleProperty", "modulename": "sqlglot.expressions", "qualname": "DistStyleProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.EngineProperty": {"fullname": "sqlglot.expressions.EngineProperty", "modulename": "sqlglot.expressions", "qualname": "EngineProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ExecuteAsProperty": {"fullname": "sqlglot.expressions.ExecuteAsProperty", "modulename": "sqlglot.expressions", "qualname": "ExecuteAsProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ExternalProperty": {"fullname": "sqlglot.expressions.ExternalProperty", "modulename": "sqlglot.expressions", "qualname": "ExternalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FallbackProperty": {"fullname": "sqlglot.expressions.FallbackProperty", "modulename": "sqlglot.expressions", "qualname": "FallbackProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FileFormatProperty": {"fullname": "sqlglot.expressions.FileFormatProperty", "modulename": "sqlglot.expressions", "qualname": "FileFormatProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FreespaceProperty": {"fullname": "sqlglot.expressions.FreespaceProperty", "modulename": "sqlglot.expressions", "qualname": "FreespaceProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.IsolatedLoadingProperty": {"fullname": "sqlglot.expressions.IsolatedLoadingProperty", "modulename": "sqlglot.expressions", "qualname": "IsolatedLoadingProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.JournalProperty": {"fullname": "sqlglot.expressions.JournalProperty", "modulename": "sqlglot.expressions", "qualname": "JournalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LanguageProperty": {"fullname": "sqlglot.expressions.LanguageProperty", "modulename": "sqlglot.expressions", "qualname": "LanguageProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LikeProperty": {"fullname": "sqlglot.expressions.LikeProperty", "modulename": "sqlglot.expressions", "qualname": "LikeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LocationProperty": {"fullname": "sqlglot.expressions.LocationProperty", "modulename": "sqlglot.expressions", "qualname": "LocationProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LockingProperty": {"fullname": "sqlglot.expressions.LockingProperty", "modulename": "sqlglot.expressions", "qualname": "LockingProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LogProperty": {"fullname": "sqlglot.expressions.LogProperty", "modulename": "sqlglot.expressions", "qualname": "LogProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.MaterializedProperty": {"fullname": "sqlglot.expressions.MaterializedProperty", "modulename": "sqlglot.expressions", "qualname": "MaterializedProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.MergeBlockRatioProperty": {"fullname": "sqlglot.expressions.MergeBlockRatioProperty", "modulename": "sqlglot.expressions", "qualname": "MergeBlockRatioProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.NoPrimaryIndexProperty": {"fullname": "sqlglot.expressions.NoPrimaryIndexProperty", "modulename": "sqlglot.expressions", "qualname": "NoPrimaryIndexProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.OnCommitProperty": {"fullname": "sqlglot.expressions.OnCommitProperty", "modulename": "sqlglot.expressions", "qualname": "OnCommitProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.PartitionedByProperty": {"fullname": "sqlglot.expressions.PartitionedByProperty", "modulename": "sqlglot.expressions", "qualname": "PartitionedByProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ReturnsProperty": {"fullname": "sqlglot.expressions.ReturnsProperty", "modulename": "sqlglot.expressions", "qualname": "ReturnsProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.RowFormatDelimitedProperty": {"fullname": "sqlglot.expressions.RowFormatDelimitedProperty", "modulename": "sqlglot.expressions", "qualname": "RowFormatDelimitedProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.RowFormatSerdeProperty": {"fullname": "sqlglot.expressions.RowFormatSerdeProperty", "modulename": "sqlglot.expressions", "qualname": "RowFormatSerdeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SchemaCommentProperty": {"fullname": "sqlglot.expressions.SchemaCommentProperty", "modulename": "sqlglot.expressions", "qualname": "SchemaCommentProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SerdeProperties": {"fullname": "sqlglot.expressions.SerdeProperties", "modulename": "sqlglot.expressions", "qualname": "SerdeProperties", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SetProperty": {"fullname": "sqlglot.expressions.SetProperty", "modulename": "sqlglot.expressions", "qualname": "SetProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SortKeyProperty": {"fullname": "sqlglot.expressions.SortKeyProperty", "modulename": "sqlglot.expressions", "qualname": "SortKeyProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SqlSecurityProperty": {"fullname": "sqlglot.expressions.SqlSecurityProperty", "modulename": "sqlglot.expressions", "qualname": "SqlSecurityProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TableFormatProperty": {"fullname": "sqlglot.expressions.TableFormatProperty", "modulename": "sqlglot.expressions", "qualname": "TableFormatProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TemporaryProperty": {"fullname": "sqlglot.expressions.TemporaryProperty", "modulename": "sqlglot.expressions", "qualname": "TemporaryProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TransientProperty": {"fullname": "sqlglot.expressions.TransientProperty", "modulename": "sqlglot.expressions", "qualname": "TransientProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.VolatilityProperty": {"fullname": "sqlglot.expressions.VolatilityProperty", "modulename": "sqlglot.expressions", "qualname": "VolatilityProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.WithDataProperty": {"fullname": "sqlglot.expressions.WithDataProperty", "modulename": "sqlglot.expressions", "qualname": "WithDataProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.WithJournalTableProperty": {"fullname": "sqlglot.expressions.WithJournalTableProperty", "modulename": "sqlglot.expressions", "qualname": "WithJournalTableProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.Properties": {"fullname": "sqlglot.expressions.Properties", "modulename": "sqlglot.expressions", "qualname": "Properties", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Properties.Location": {"fullname": "sqlglot.expressions.Properties.Location", "modulename": "sqlglot.expressions", "qualname": "Properties.Location", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.expressions.Properties.Location.POST_CREATE": {"fullname": "sqlglot.expressions.Properties.Location.POST_CREATE", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_CREATE", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_CREATE: 'POST_CREATE'>"}, "sqlglot.expressions.Properties.Location.POST_NAME": {"fullname": "sqlglot.expressions.Properties.Location.POST_NAME", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_NAME", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_NAME: 'POST_NAME'>"}, "sqlglot.expressions.Properties.Location.POST_SCHEMA": {"fullname": "sqlglot.expressions.Properties.Location.POST_SCHEMA", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_SCHEMA", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_SCHEMA: 'POST_SCHEMA'>"}, "sqlglot.expressions.Properties.Location.POST_WITH": {"fullname": "sqlglot.expressions.Properties.Location.POST_WITH", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_WITH", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_WITH: 'POST_WITH'>"}, "sqlglot.expressions.Properties.Location.POST_ALIAS": {"fullname": "sqlglot.expressions.Properties.Location.POST_ALIAS", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_ALIAS", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_ALIAS: 'POST_ALIAS'>"}, "sqlglot.expressions.Properties.Location.POST_EXPRESSION": {"fullname": "sqlglot.expressions.Properties.Location.POST_EXPRESSION", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_EXPRESSION", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_EXPRESSION: 'POST_EXPRESSION'>"}, "sqlglot.expressions.Properties.Location.POST_INDEX": {"fullname": "sqlglot.expressions.Properties.Location.POST_INDEX", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_INDEX", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_INDEX: 'POST_INDEX'>"}, "sqlglot.expressions.Properties.Location.UNSUPPORTED": {"fullname": "sqlglot.expressions.Properties.Location.UNSUPPORTED", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.UNSUPPORTED", "kind": "variable", "doc": "

\n", "default_value": "<Location.UNSUPPORTED: 'UNSUPPORTED'>"}, "sqlglot.expressions.Properties.from_dict": {"fullname": "sqlglot.expressions.Properties.from_dict", "modulename": "sqlglot.expressions", "qualname": "Properties.from_dict", "kind": "function", "doc": "

\n", "signature": "(cls, properties_dict) -> sqlglot.expressions.Properties:", "funcdef": "def"}, "sqlglot.expressions.Qualify": {"fullname": "sqlglot.expressions.Qualify", "modulename": "sqlglot.expressions", "qualname": "Qualify", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Return": {"fullname": "sqlglot.expressions.Return", "modulename": "sqlglot.expressions", "qualname": "Return", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Reference": {"fullname": "sqlglot.expressions.Reference", "modulename": "sqlglot.expressions", "qualname": "Reference", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Tuple": {"fullname": "sqlglot.expressions.Tuple", "modulename": "sqlglot.expressions", "qualname": "Tuple", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Subqueryable": {"fullname": "sqlglot.expressions.Subqueryable", "modulename": "sqlglot.expressions", "qualname": "Subqueryable", "kind": "class", "doc": "

\n", "bases": "Unionable"}, "sqlglot.expressions.Subqueryable.subquery": {"fullname": "sqlglot.expressions.Subqueryable.subquery", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.subquery", "kind": "function", "doc": "

Convert this expression to an aliased expression that can be used as a Subquery.

\n\n
Example:
\n\n
\n
\n
>>> subquery = Select().select("x").from_("tbl").subquery()\n>>> Select().select("x").from_(subquery).sql()\n'SELECT x FROM (SELECT x FROM tbl)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • alias (str | Identifier): an optional alias for the subquery
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

Alias: the subquery

\n
\n", "signature": "(self, alias=None, copy=True) -> sqlglot.expressions.Subquery:", "funcdef": "def"}, "sqlglot.expressions.Subqueryable.limit": {"fullname": "sqlglot.expressions.Subqueryable.limit", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.limit", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Subqueryable.with_": {"fullname": "sqlglot.expressions.Subqueryable.with_", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.with_", "kind": "function", "doc": "

Append to or set the common table expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()\n'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • alias (str | Expression): the SQL code string to parse as the table name.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • as_ (str | Expression): the SQL code string to parse as the table expression.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • recursive (bool): set the RECURSIVE part of the expression. Defaults to False.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\talias,\tas_,\trecursive=None,\tappend=True,\tdialect=None,\tcopy=True,\t**opts):", "funcdef": "def"}, "sqlglot.expressions.Table": {"fullname": "sqlglot.expressions.Table", "modulename": "sqlglot.expressions", "qualname": "Table", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SystemTime": {"fullname": "sqlglot.expressions.SystemTime", "modulename": "sqlglot.expressions", "qualname": "SystemTime", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Union": {"fullname": "sqlglot.expressions.Union", "modulename": "sqlglot.expressions", "qualname": "Union", "kind": "class", "doc": "

\n", "bases": "Subqueryable"}, "sqlglot.expressions.Union.limit": {"fullname": "sqlglot.expressions.Union.limit", "modulename": "sqlglot.expressions", "qualname": "Union.limit", "kind": "function", "doc": "

Set the LIMIT expression.

\n\n
Example:
\n\n
\n
\n
>>> select("1").union(select("1")).limit(1).sql()\n'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Limit instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Limit.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: The limited subqueryable.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Union.select": {"fullname": "sqlglot.expressions.Union.select", "modulename": "sqlglot.expressions", "qualname": "Union.select", "kind": "function", "doc": "

Append to or set the SELECT of the union recursively.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("select a from x union select a from y union select a from z").select("b").sql()\n'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append: if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: str | sqlglot.expressions.Expression,\tappend: bool = True,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Union:", "funcdef": "def"}, "sqlglot.expressions.Union.is_star": {"fullname": "sqlglot.expressions.Union.is_star", "modulename": "sqlglot.expressions", "qualname": "Union.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Except": {"fullname": "sqlglot.expressions.Except", "modulename": "sqlglot.expressions", "qualname": "Except", "kind": "class", "doc": "

\n", "bases": "Union"}, "sqlglot.expressions.Intersect": {"fullname": "sqlglot.expressions.Intersect", "modulename": "sqlglot.expressions", "qualname": "Intersect", "kind": "class", "doc": "

\n", "bases": "Union"}, "sqlglot.expressions.Unnest": {"fullname": "sqlglot.expressions.Unnest", "modulename": "sqlglot.expressions", "qualname": "Unnest", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.Update": {"fullname": "sqlglot.expressions.Update", "modulename": "sqlglot.expressions", "qualname": "Update", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Values": {"fullname": "sqlglot.expressions.Values", "modulename": "sqlglot.expressions", "qualname": "Values", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.Var": {"fullname": "sqlglot.expressions.Var", "modulename": "sqlglot.expressions", "qualname": "Var", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Schema": {"fullname": "sqlglot.expressions.Schema", "modulename": "sqlglot.expressions", "qualname": "Schema", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Lock": {"fullname": "sqlglot.expressions.Lock", "modulename": "sqlglot.expressions", "qualname": "Lock", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Select": {"fullname": "sqlglot.expressions.Select", "modulename": "sqlglot.expressions", "qualname": "Select", "kind": "class", "doc": "

\n", "bases": "Subqueryable"}, "sqlglot.expressions.Select.from_": {"fullname": "sqlglot.expressions.Select.from_", "modulename": "sqlglot.expressions", "qualname": "Select.from_", "kind": "function", "doc": "

Set the FROM expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").sql()\n'SELECT x FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a From instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a From.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the From expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.group_by": {"fullname": "sqlglot.expressions.Select.group_by", "modulename": "sqlglot.expressions", "qualname": "Select.group_by", "kind": "function", "doc": "

Set the GROUP BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()\n'SELECT x, COUNT(1) FROM tbl GROUP BY x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Group.\nIf nothing is passed in then a group by is not applied to the expression
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Group expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.order_by": {"fullname": "sqlglot.expressions.Select.order_by", "modulename": "sqlglot.expressions", "qualname": "Select.order_by", "kind": "function", "doc": "

Set the ORDER BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").order_by("x DESC").sql()\n'SELECT x FROM tbl ORDER BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Order.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.sort_by": {"fullname": "sqlglot.expressions.Select.sort_by", "modulename": "sqlglot.expressions", "qualname": "Select.sort_by", "kind": "function", "doc": "

Set the SORT BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").sort_by("x DESC").sql()\n'SELECT x FROM tbl SORT BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a SORT.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.cluster_by": {"fullname": "sqlglot.expressions.Select.cluster_by", "modulename": "sqlglot.expressions", "qualname": "Select.cluster_by", "kind": "function", "doc": "

Set the CLUSTER BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()\n'SELECT x FROM tbl CLUSTER BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Cluster.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.limit": {"fullname": "sqlglot.expressions.Select.limit", "modulename": "sqlglot.expressions", "qualname": "Select.limit", "kind": "function", "doc": "

Set the LIMIT expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").limit(10).sql()\n'SELECT x FROM tbl LIMIT 10'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Limit instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Limit.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.offset": {"fullname": "sqlglot.expressions.Select.offset", "modulename": "sqlglot.expressions", "qualname": "Select.offset", "kind": "function", "doc": "

Set the OFFSET expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").offset(10).sql()\n'SELECT x FROM tbl OFFSET 10'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Offset instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Offset.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.select": {"fullname": "sqlglot.expressions.Select.select", "modulename": "sqlglot.expressions", "qualname": "Select.select", "kind": "function", "doc": "

Append to or set the SELECT expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x", "y").sql()\n'SELECT x, y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append: if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: str | sqlglot.expressions.Expression,\tappend: bool = True,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.lateral": {"fullname": "sqlglot.expressions.Select.lateral", "modulename": "sqlglot.expressions", "qualname": "Select.lateral", "kind": "function", "doc": "

Append to or set the LATERAL expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()\n'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.join": {"fullname": "sqlglot.expressions.Select.join", "modulename": "sqlglot.expressions", "qualname": "Select.join", "kind": "function", "doc": "

Append to or set the JOIN expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()\n'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'\n
\n
\n \n
\n
>>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()\n'SELECT 1 FROM a JOIN b USING (x, y, z)'\n
\n
\n \n

Use join_type to change the type of join:

\n \n
\n
>>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()\n'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • on (str | Expression): optionally specify the join \"on\" criteria as a SQL string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • using (str | Expression): optionally specify the join \"using\" criteria as a SQL string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • join_type (str): If set, alter the parsed join type
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\ton=None,\tusing=None,\tappend=True,\tjoin_type=None,\tjoin_alias=None,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.where": {"fullname": "sqlglot.expressions.Select.where", "modulename": "sqlglot.expressions", "qualname": "Select.where", "kind": "function", "doc": "

Append to or set the WHERE expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()\n"SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.having": {"fullname": "sqlglot.expressions.Select.having", "modulename": "sqlglot.expressions", "qualname": "Select.having", "kind": "function", "doc": "

Append to or set the HAVING expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()\n'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.window": {"fullname": "sqlglot.expressions.Select.window", "modulename": "sqlglot.expressions", "qualname": "Select.window", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.distinct": {"fullname": "sqlglot.expressions.Select.distinct", "modulename": "sqlglot.expressions", "qualname": "Select.distinct", "kind": "function", "doc": "

Set the OFFSET expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").distinct().sql()\n'SELECT DISTINCT x FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • distinct (bool): whether the Select should be distinct
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(self, distinct=True, copy=True) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.ctas": {"fullname": "sqlglot.expressions.Select.ctas", "modulename": "sqlglot.expressions", "qualname": "Select.ctas", "kind": "function", "doc": "

Convert this expression to a CREATE TABLE AS statement.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("*").from_("tbl").ctas("x").sql()\n'CREATE TABLE x AS SELECT * FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • table (str | Expression): the SQL code string to parse as the table name.\nIf another Expression instance is passed, it will be used as-is.
  • \n
  • properties (dict): an optional mapping of table properties
  • \n
  • dialect (str): the dialect used to parse the input table.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input table.
  • \n
\n\n
Returns:
\n\n
\n

Create: the CREATE TABLE AS expression

\n
\n", "signature": "(\tself,\ttable,\tproperties=None,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Create:", "funcdef": "def"}, "sqlglot.expressions.Select.lock": {"fullname": "sqlglot.expressions.Select.lock", "modulename": "sqlglot.expressions", "qualname": "Select.lock", "kind": "function", "doc": "

Set the locking read mode for this expression.

\n\n
Examples:
\n\n
\n
\n
>>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")\n"SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"\n
\n
\n \n
\n
>>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")\n"SELECT x FROM tbl WHERE x = 'a' FOR SHARE"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • update: if True, the locking type will be FOR UPDATE, else it will be FOR SHARE.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

The modified expression.

\n
\n", "signature": "(\tself,\tupdate: bool = True,\tcopy: bool = True) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.is_star": {"fullname": "sqlglot.expressions.Select.is_star", "modulename": "sqlglot.expressions", "qualname": "Select.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Subquery": {"fullname": "sqlglot.expressions.Subquery", "modulename": "sqlglot.expressions", "qualname": "Subquery", "kind": "class", "doc": "

\n", "bases": "DerivedTable, Unionable"}, "sqlglot.expressions.Subquery.unnest": {"fullname": "sqlglot.expressions.Subquery.unnest", "modulename": "sqlglot.expressions", "qualname": "Subquery.unnest", "kind": "function", "doc": "

Returns the first non subquery.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Subquery.is_star": {"fullname": "sqlglot.expressions.Subquery.is_star", "modulename": "sqlglot.expressions", "qualname": "Subquery.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Subquery.output_name": {"fullname": "sqlglot.expressions.Subquery.output_name", "modulename": "sqlglot.expressions", "qualname": "Subquery.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.TableSample": {"fullname": "sqlglot.expressions.TableSample", "modulename": "sqlglot.expressions", "qualname": "TableSample", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Tag": {"fullname": "sqlglot.expressions.Tag", "modulename": "sqlglot.expressions", "qualname": "Tag", "kind": "class", "doc": "

Tags are used for generating arbitrary sql like SELECT x.

\n", "bases": "Expression"}, "sqlglot.expressions.Pivot": {"fullname": "sqlglot.expressions.Pivot", "modulename": "sqlglot.expressions", "qualname": "Pivot", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Window": {"fullname": "sqlglot.expressions.Window", "modulename": "sqlglot.expressions", "qualname": "Window", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.WindowSpec": {"fullname": "sqlglot.expressions.WindowSpec", "modulename": "sqlglot.expressions", "qualname": "WindowSpec", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Where": {"fullname": "sqlglot.expressions.Where", "modulename": "sqlglot.expressions", "qualname": "Where", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Star": {"fullname": "sqlglot.expressions.Star", "modulename": "sqlglot.expressions", "qualname": "Star", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Star.output_name": {"fullname": "sqlglot.expressions.Star.output_name", "modulename": "sqlglot.expressions", "qualname": "Star.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Parameter": {"fullname": "sqlglot.expressions.Parameter", "modulename": "sqlglot.expressions", "qualname": "Parameter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SessionParameter": {"fullname": "sqlglot.expressions.SessionParameter", "modulename": "sqlglot.expressions", "qualname": "SessionParameter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Placeholder": {"fullname": "sqlglot.expressions.Placeholder", "modulename": "sqlglot.expressions", "qualname": "Placeholder", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Null": {"fullname": "sqlglot.expressions.Null", "modulename": "sqlglot.expressions", "qualname": "Null", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Boolean": {"fullname": "sqlglot.expressions.Boolean", "modulename": "sqlglot.expressions", "qualname": "Boolean", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.DataType": {"fullname": "sqlglot.expressions.DataType", "modulename": "sqlglot.expressions", "qualname": "DataType", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.DataType.Type": {"fullname": "sqlglot.expressions.DataType.Type", "modulename": "sqlglot.expressions", "qualname": "DataType.Type", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.expressions.DataType.Type.CHAR": {"fullname": "sqlglot.expressions.DataType.Type.CHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.CHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.CHAR: 'CHAR'>"}, "sqlglot.expressions.DataType.Type.NCHAR": {"fullname": "sqlglot.expressions.DataType.Type.NCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.NCHAR: 'NCHAR'>"}, "sqlglot.expressions.DataType.Type.VARCHAR": {"fullname": "sqlglot.expressions.DataType.Type.VARCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.VARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.VARCHAR: 'VARCHAR'>"}, "sqlglot.expressions.DataType.Type.NVARCHAR": {"fullname": "sqlglot.expressions.DataType.Type.NVARCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NVARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.NVARCHAR: 'NVARCHAR'>"}, "sqlglot.expressions.DataType.Type.TEXT": {"fullname": "sqlglot.expressions.DataType.Type.TEXT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TEXT", "kind": "variable", "doc": "

\n", "default_value": "<Type.TEXT: 'TEXT'>"}, "sqlglot.expressions.DataType.Type.MEDIUMTEXT": {"fullname": "sqlglot.expressions.DataType.Type.MEDIUMTEXT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MEDIUMTEXT", "kind": "variable", "doc": "

\n", "default_value": "<Type.MEDIUMTEXT: 'MEDIUMTEXT'>"}, "sqlglot.expressions.DataType.Type.LONGTEXT": {"fullname": "sqlglot.expressions.DataType.Type.LONGTEXT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.LONGTEXT", "kind": "variable", "doc": "

\n", "default_value": "<Type.LONGTEXT: 'LONGTEXT'>"}, "sqlglot.expressions.DataType.Type.MEDIUMBLOB": {"fullname": "sqlglot.expressions.DataType.Type.MEDIUMBLOB", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MEDIUMBLOB", "kind": "variable", "doc": "

\n", "default_value": "<Type.MEDIUMBLOB: 'MEDIUMBLOB'>"}, "sqlglot.expressions.DataType.Type.LONGBLOB": {"fullname": "sqlglot.expressions.DataType.Type.LONGBLOB", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.LONGBLOB", "kind": "variable", "doc": "

\n", "default_value": "<Type.LONGBLOB: 'LONGBLOB'>"}, "sqlglot.expressions.DataType.Type.BINARY": {"fullname": "sqlglot.expressions.DataType.Type.BINARY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BINARY", "kind": "variable", "doc": "

\n", "default_value": "<Type.BINARY: 'BINARY'>"}, "sqlglot.expressions.DataType.Type.VARBINARY": {"fullname": "sqlglot.expressions.DataType.Type.VARBINARY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.VARBINARY", "kind": "variable", "doc": "

\n", "default_value": "<Type.VARBINARY: 'VARBINARY'>"}, "sqlglot.expressions.DataType.Type.INT": {"fullname": "sqlglot.expressions.DataType.Type.INT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.INT", "kind": "variable", "doc": "

\n", "default_value": "<Type.INT: 'INT'>"}, "sqlglot.expressions.DataType.Type.TINYINT": {"fullname": "sqlglot.expressions.DataType.Type.TINYINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TINYINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.TINYINT: 'TINYINT'>"}, "sqlglot.expressions.DataType.Type.SMALLINT": {"fullname": "sqlglot.expressions.DataType.Type.SMALLINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SMALLINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.SMALLINT: 'SMALLINT'>"}, "sqlglot.expressions.DataType.Type.BIGINT": {"fullname": "sqlglot.expressions.DataType.Type.BIGINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BIGINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.BIGINT: 'BIGINT'>"}, "sqlglot.expressions.DataType.Type.FLOAT": {"fullname": "sqlglot.expressions.DataType.Type.FLOAT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.FLOAT", "kind": "variable", "doc": "

\n", "default_value": "<Type.FLOAT: 'FLOAT'>"}, "sqlglot.expressions.DataType.Type.DOUBLE": {"fullname": "sqlglot.expressions.DataType.Type.DOUBLE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DOUBLE", "kind": "variable", "doc": "

\n", "default_value": "<Type.DOUBLE: 'DOUBLE'>"}, "sqlglot.expressions.DataType.Type.DECIMAL": {"fullname": "sqlglot.expressions.DataType.Type.DECIMAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DECIMAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.DECIMAL: 'DECIMAL'>"}, "sqlglot.expressions.DataType.Type.BOOLEAN": {"fullname": "sqlglot.expressions.DataType.Type.BOOLEAN", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BOOLEAN", "kind": "variable", "doc": "

\n", "default_value": "<Type.BOOLEAN: 'BOOLEAN'>"}, "sqlglot.expressions.DataType.Type.JSON": {"fullname": "sqlglot.expressions.DataType.Type.JSON", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.JSON", "kind": "variable", "doc": "

\n", "default_value": "<Type.JSON: 'JSON'>"}, "sqlglot.expressions.DataType.Type.JSONB": {"fullname": "sqlglot.expressions.DataType.Type.JSONB", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.JSONB", "kind": "variable", "doc": "

\n", "default_value": "<Type.JSONB: 'JSONB'>"}, "sqlglot.expressions.DataType.Type.INTERVAL": {"fullname": "sqlglot.expressions.DataType.Type.INTERVAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.INTERVAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.INTERVAL: 'INTERVAL'>"}, "sqlglot.expressions.DataType.Type.TIME": {"fullname": "sqlglot.expressions.DataType.Type.TIME", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIME", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIME: 'TIME'>"}, "sqlglot.expressions.DataType.Type.TIMESTAMP": {"fullname": "sqlglot.expressions.DataType.Type.TIMESTAMP", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIMESTAMP", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIMESTAMP: 'TIMESTAMP'>"}, "sqlglot.expressions.DataType.Type.TIMESTAMPTZ": {"fullname": "sqlglot.expressions.DataType.Type.TIMESTAMPTZ", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIMESTAMPTZ", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>"}, "sqlglot.expressions.DataType.Type.TIMESTAMPLTZ": {"fullname": "sqlglot.expressions.DataType.Type.TIMESTAMPLTZ", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIMESTAMPLTZ", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>"}, "sqlglot.expressions.DataType.Type.DATE": {"fullname": "sqlglot.expressions.DataType.Type.DATE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DATE", "kind": "variable", "doc": "

\n", "default_value": "<Type.DATE: 'DATE'>"}, "sqlglot.expressions.DataType.Type.DATETIME": {"fullname": "sqlglot.expressions.DataType.Type.DATETIME", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DATETIME", "kind": "variable", "doc": "

\n", "default_value": "<Type.DATETIME: 'DATETIME'>"}, "sqlglot.expressions.DataType.Type.ARRAY": {"fullname": "sqlglot.expressions.DataType.Type.ARRAY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.ARRAY", "kind": "variable", "doc": "

\n", "default_value": "<Type.ARRAY: 'ARRAY'>"}, "sqlglot.expressions.DataType.Type.MAP": {"fullname": "sqlglot.expressions.DataType.Type.MAP", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MAP", "kind": "variable", "doc": "

\n", "default_value": "<Type.MAP: 'MAP'>"}, "sqlglot.expressions.DataType.Type.UUID": {"fullname": "sqlglot.expressions.DataType.Type.UUID", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UUID", "kind": "variable", "doc": "

\n", "default_value": "<Type.UUID: 'UUID'>"}, "sqlglot.expressions.DataType.Type.GEOGRAPHY": {"fullname": "sqlglot.expressions.DataType.Type.GEOGRAPHY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.GEOGRAPHY", "kind": "variable", "doc": "

\n", "default_value": "<Type.GEOGRAPHY: 'GEOGRAPHY'>"}, "sqlglot.expressions.DataType.Type.GEOMETRY": {"fullname": "sqlglot.expressions.DataType.Type.GEOMETRY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.GEOMETRY", "kind": "variable", "doc": "

\n", "default_value": "<Type.GEOMETRY: 'GEOMETRY'>"}, "sqlglot.expressions.DataType.Type.STRUCT": {"fullname": "sqlglot.expressions.DataType.Type.STRUCT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.STRUCT", "kind": "variable", "doc": "

\n", "default_value": "<Type.STRUCT: 'STRUCT'>"}, "sqlglot.expressions.DataType.Type.NULLABLE": {"fullname": "sqlglot.expressions.DataType.Type.NULLABLE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NULLABLE", "kind": "variable", "doc": "

\n", "default_value": "<Type.NULLABLE: 'NULLABLE'>"}, "sqlglot.expressions.DataType.Type.HLLSKETCH": {"fullname": "sqlglot.expressions.DataType.Type.HLLSKETCH", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.HLLSKETCH", "kind": "variable", "doc": "

\n", "default_value": "<Type.HLLSKETCH: 'HLLSKETCH'>"}, "sqlglot.expressions.DataType.Type.HSTORE": {"fullname": "sqlglot.expressions.DataType.Type.HSTORE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.HSTORE", "kind": "variable", "doc": "

\n", "default_value": "<Type.HSTORE: 'HSTORE'>"}, "sqlglot.expressions.DataType.Type.SUPER": {"fullname": "sqlglot.expressions.DataType.Type.SUPER", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SUPER", "kind": "variable", "doc": "

\n", "default_value": "<Type.SUPER: 'SUPER'>"}, "sqlglot.expressions.DataType.Type.SERIAL": {"fullname": "sqlglot.expressions.DataType.Type.SERIAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SERIAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.SERIAL: 'SERIAL'>"}, "sqlglot.expressions.DataType.Type.SMALLSERIAL": {"fullname": "sqlglot.expressions.DataType.Type.SMALLSERIAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SMALLSERIAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.SMALLSERIAL: 'SMALLSERIAL'>"}, "sqlglot.expressions.DataType.Type.BIGSERIAL": {"fullname": "sqlglot.expressions.DataType.Type.BIGSERIAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BIGSERIAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.BIGSERIAL: 'BIGSERIAL'>"}, "sqlglot.expressions.DataType.Type.XML": {"fullname": "sqlglot.expressions.DataType.Type.XML", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.XML", "kind": "variable", "doc": "

\n", "default_value": "<Type.XML: 'XML'>"}, "sqlglot.expressions.DataType.Type.UNIQUEIDENTIFIER": {"fullname": "sqlglot.expressions.DataType.Type.UNIQUEIDENTIFIER", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UNIQUEIDENTIFIER", "kind": "variable", "doc": "

\n", "default_value": "<Type.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>"}, "sqlglot.expressions.DataType.Type.MONEY": {"fullname": "sqlglot.expressions.DataType.Type.MONEY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MONEY", "kind": "variable", "doc": "

\n", "default_value": "<Type.MONEY: 'MONEY'>"}, "sqlglot.expressions.DataType.Type.SMALLMONEY": {"fullname": "sqlglot.expressions.DataType.Type.SMALLMONEY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SMALLMONEY", "kind": "variable", "doc": "

\n", "default_value": "<Type.SMALLMONEY: 'SMALLMONEY'>"}, "sqlglot.expressions.DataType.Type.ROWVERSION": {"fullname": "sqlglot.expressions.DataType.Type.ROWVERSION", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.ROWVERSION", "kind": "variable", "doc": "

\n", "default_value": "<Type.ROWVERSION: 'ROWVERSION'>"}, "sqlglot.expressions.DataType.Type.IMAGE": {"fullname": "sqlglot.expressions.DataType.Type.IMAGE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.IMAGE", "kind": "variable", "doc": "

\n", "default_value": "<Type.IMAGE: 'IMAGE'>"}, "sqlglot.expressions.DataType.Type.VARIANT": {"fullname": "sqlglot.expressions.DataType.Type.VARIANT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.VARIANT", "kind": "variable", "doc": "

\n", "default_value": "<Type.VARIANT: 'VARIANT'>"}, "sqlglot.expressions.DataType.Type.OBJECT": {"fullname": "sqlglot.expressions.DataType.Type.OBJECT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.OBJECT", "kind": "variable", "doc": "

\n", "default_value": "<Type.OBJECT: 'OBJECT'>"}, "sqlglot.expressions.DataType.Type.INET": {"fullname": "sqlglot.expressions.DataType.Type.INET", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.INET", "kind": "variable", "doc": "

\n", "default_value": "<Type.INET: 'INET'>"}, "sqlglot.expressions.DataType.Type.NULL": {"fullname": "sqlglot.expressions.DataType.Type.NULL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NULL", "kind": "variable", "doc": "

\n", "default_value": "<Type.NULL: 'NULL'>"}, "sqlglot.expressions.DataType.Type.UNKNOWN": {"fullname": "sqlglot.expressions.DataType.Type.UNKNOWN", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UNKNOWN", "kind": "variable", "doc": "

\n", "default_value": "<Type.UNKNOWN: 'UNKNOWN'>"}, "sqlglot.expressions.DataType.build": {"fullname": "sqlglot.expressions.DataType.build", "modulename": "sqlglot.expressions", "qualname": "DataType.build", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tdtype: str | sqlglot.expressions.DataType | sqlglot.expressions.DataType.Type,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**kwargs) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.expressions.DataType.is_type": {"fullname": "sqlglot.expressions.DataType.is_type", "modulename": "sqlglot.expressions", "qualname": "DataType.is_type", "kind": "function", "doc": "

\n", "signature": "(self, dtype: sqlglot.expressions.DataType.Type) -> bool:", "funcdef": "def"}, "sqlglot.expressions.PseudoType": {"fullname": "sqlglot.expressions.PseudoType", "modulename": "sqlglot.expressions", "qualname": "PseudoType", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.StructKwarg": {"fullname": "sqlglot.expressions.StructKwarg", "modulename": "sqlglot.expressions", "qualname": "StructKwarg", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SubqueryPredicate": {"fullname": "sqlglot.expressions.SubqueryPredicate", "modulename": "sqlglot.expressions", "qualname": "SubqueryPredicate", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.All": {"fullname": "sqlglot.expressions.All", "modulename": "sqlglot.expressions", "qualname": "All", "kind": "class", "doc": "

\n", "bases": "SubqueryPredicate"}, "sqlglot.expressions.Any": {"fullname": "sqlglot.expressions.Any", "modulename": "sqlglot.expressions", "qualname": "Any", "kind": "class", "doc": "

\n", "bases": "SubqueryPredicate"}, "sqlglot.expressions.Exists": {"fullname": "sqlglot.expressions.Exists", "modulename": "sqlglot.expressions", "qualname": "Exists", "kind": "class", "doc": "

\n", "bases": "SubqueryPredicate"}, "sqlglot.expressions.Command": {"fullname": "sqlglot.expressions.Command", "modulename": "sqlglot.expressions", "qualname": "Command", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Transaction": {"fullname": "sqlglot.expressions.Transaction", "modulename": "sqlglot.expressions", "qualname": "Transaction", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Commit": {"fullname": "sqlglot.expressions.Commit", "modulename": "sqlglot.expressions", "qualname": "Commit", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Rollback": {"fullname": "sqlglot.expressions.Rollback", "modulename": "sqlglot.expressions", "qualname": "Rollback", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AlterTable": {"fullname": "sqlglot.expressions.AlterTable", "modulename": "sqlglot.expressions", "qualname": "AlterTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AddConstraint": {"fullname": "sqlglot.expressions.AddConstraint", "modulename": "sqlglot.expressions", "qualname": "AddConstraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.DropPartition": {"fullname": "sqlglot.expressions.DropPartition", "modulename": "sqlglot.expressions", "qualname": "DropPartition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Binary": {"fullname": "sqlglot.expressions.Binary", "modulename": "sqlglot.expressions", "qualname": "Binary", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Add": {"fullname": "sqlglot.expressions.Add", "modulename": "sqlglot.expressions", "qualname": "Add", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Connector": {"fullname": "sqlglot.expressions.Connector", "modulename": "sqlglot.expressions", "qualname": "Connector", "kind": "class", "doc": "

\n", "bases": "Binary, Condition"}, "sqlglot.expressions.And": {"fullname": "sqlglot.expressions.And", "modulename": "sqlglot.expressions", "qualname": "And", "kind": "class", "doc": "

\n", "bases": "Connector"}, "sqlglot.expressions.Or": {"fullname": "sqlglot.expressions.Or", "modulename": "sqlglot.expressions", "qualname": "Or", "kind": "class", "doc": "

\n", "bases": "Connector"}, "sqlglot.expressions.BitwiseAnd": {"fullname": "sqlglot.expressions.BitwiseAnd", "modulename": "sqlglot.expressions", "qualname": "BitwiseAnd", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseLeftShift": {"fullname": "sqlglot.expressions.BitwiseLeftShift", "modulename": "sqlglot.expressions", "qualname": "BitwiseLeftShift", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseOr": {"fullname": "sqlglot.expressions.BitwiseOr", "modulename": "sqlglot.expressions", "qualname": "BitwiseOr", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseRightShift": {"fullname": "sqlglot.expressions.BitwiseRightShift", "modulename": "sqlglot.expressions", "qualname": "BitwiseRightShift", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseXor": {"fullname": "sqlglot.expressions.BitwiseXor", "modulename": "sqlglot.expressions", "qualname": "BitwiseXor", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Div": {"fullname": "sqlglot.expressions.Div", "modulename": "sqlglot.expressions", "qualname": "Div", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Overlaps": {"fullname": "sqlglot.expressions.Overlaps", "modulename": "sqlglot.expressions", "qualname": "Overlaps", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Dot": {"fullname": "sqlglot.expressions.Dot", "modulename": "sqlglot.expressions", "qualname": "Dot", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.DPipe": {"fullname": "sqlglot.expressions.DPipe", "modulename": "sqlglot.expressions", "qualname": "DPipe", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.EQ": {"fullname": "sqlglot.expressions.EQ", "modulename": "sqlglot.expressions", "qualname": "EQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.NullSafeEQ": {"fullname": "sqlglot.expressions.NullSafeEQ", "modulename": "sqlglot.expressions", "qualname": "NullSafeEQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.NullSafeNEQ": {"fullname": "sqlglot.expressions.NullSafeNEQ", "modulename": "sqlglot.expressions", "qualname": "NullSafeNEQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Distance": {"fullname": "sqlglot.expressions.Distance", "modulename": "sqlglot.expressions", "qualname": "Distance", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Escape": {"fullname": "sqlglot.expressions.Escape", "modulename": "sqlglot.expressions", "qualname": "Escape", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Glob": {"fullname": "sqlglot.expressions.Glob", "modulename": "sqlglot.expressions", "qualname": "Glob", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.GT": {"fullname": "sqlglot.expressions.GT", "modulename": "sqlglot.expressions", "qualname": "GT", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.GTE": {"fullname": "sqlglot.expressions.GTE", "modulename": "sqlglot.expressions", "qualname": "GTE", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.ILike": {"fullname": "sqlglot.expressions.ILike", "modulename": "sqlglot.expressions", "qualname": "ILike", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.ILikeAny": {"fullname": "sqlglot.expressions.ILikeAny", "modulename": "sqlglot.expressions", "qualname": "ILikeAny", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.IntDiv": {"fullname": "sqlglot.expressions.IntDiv", "modulename": "sqlglot.expressions", "qualname": "IntDiv", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Is": {"fullname": "sqlglot.expressions.Is", "modulename": "sqlglot.expressions", "qualname": "Is", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Kwarg": {"fullname": "sqlglot.expressions.Kwarg", "modulename": "sqlglot.expressions", "qualname": "Kwarg", "kind": "class", "doc": "

Kwarg in special functions like func(kwarg => y).

\n", "bases": "Binary"}, "sqlglot.expressions.Like": {"fullname": "sqlglot.expressions.Like", "modulename": "sqlglot.expressions", "qualname": "Like", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LikeAny": {"fullname": "sqlglot.expressions.LikeAny", "modulename": "sqlglot.expressions", "qualname": "LikeAny", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LT": {"fullname": "sqlglot.expressions.LT", "modulename": "sqlglot.expressions", "qualname": "LT", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LTE": {"fullname": "sqlglot.expressions.LTE", "modulename": "sqlglot.expressions", "qualname": "LTE", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Mod": {"fullname": "sqlglot.expressions.Mod", "modulename": "sqlglot.expressions", "qualname": "Mod", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Mul": {"fullname": "sqlglot.expressions.Mul", "modulename": "sqlglot.expressions", "qualname": "Mul", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.NEQ": {"fullname": "sqlglot.expressions.NEQ", "modulename": "sqlglot.expressions", "qualname": "NEQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.SimilarTo": {"fullname": "sqlglot.expressions.SimilarTo", "modulename": "sqlglot.expressions", "qualname": "SimilarTo", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Slice": {"fullname": "sqlglot.expressions.Slice", "modulename": "sqlglot.expressions", "qualname": "Slice", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Sub": {"fullname": "sqlglot.expressions.Sub", "modulename": "sqlglot.expressions", "qualname": "Sub", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Unary": {"fullname": "sqlglot.expressions.Unary", "modulename": "sqlglot.expressions", "qualname": "Unary", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.BitwiseNot": {"fullname": "sqlglot.expressions.BitwiseNot", "modulename": "sqlglot.expressions", "qualname": "BitwiseNot", "kind": "class", "doc": "

\n", "bases": "Unary"}, "sqlglot.expressions.Not": {"fullname": "sqlglot.expressions.Not", "modulename": "sqlglot.expressions", "qualname": "Not", "kind": "class", "doc": "

\n", "bases": "Unary, Condition"}, "sqlglot.expressions.Paren": {"fullname": "sqlglot.expressions.Paren", "modulename": "sqlglot.expressions", "qualname": "Paren", "kind": "class", "doc": "

\n", "bases": "Unary, Condition"}, "sqlglot.expressions.Neg": {"fullname": "sqlglot.expressions.Neg", "modulename": "sqlglot.expressions", "qualname": "Neg", "kind": "class", "doc": "

\n", "bases": "Unary"}, "sqlglot.expressions.Alias": {"fullname": "sqlglot.expressions.Alias", "modulename": "sqlglot.expressions", "qualname": "Alias", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Alias.output_name": {"fullname": "sqlglot.expressions.Alias.output_name", "modulename": "sqlglot.expressions", "qualname": "Alias.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Aliases": {"fullname": "sqlglot.expressions.Aliases", "modulename": "sqlglot.expressions", "qualname": "Aliases", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AtTimeZone": {"fullname": "sqlglot.expressions.AtTimeZone", "modulename": "sqlglot.expressions", "qualname": "AtTimeZone", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Between": {"fullname": "sqlglot.expressions.Between", "modulename": "sqlglot.expressions", "qualname": "Between", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.Bracket": {"fullname": "sqlglot.expressions.Bracket", "modulename": "sqlglot.expressions", "qualname": "Bracket", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Distinct": {"fullname": "sqlglot.expressions.Distinct", "modulename": "sqlglot.expressions", "qualname": "Distinct", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.In": {"fullname": "sqlglot.expressions.In", "modulename": "sqlglot.expressions", "qualname": "In", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.TimeUnit": {"fullname": "sqlglot.expressions.TimeUnit", "modulename": "sqlglot.expressions", "qualname": "TimeUnit", "kind": "class", "doc": "

Automatically converts unit arg into a var.

\n", "bases": "Expression"}, "sqlglot.expressions.TimeUnit.__init__": {"fullname": "sqlglot.expressions.TimeUnit.__init__", "modulename": "sqlglot.expressions", "qualname": "TimeUnit.__init__", "kind": "function", "doc": "

\n", "signature": "(**args)"}, "sqlglot.expressions.Interval": {"fullname": "sqlglot.expressions.Interval", "modulename": "sqlglot.expressions", "qualname": "Interval", "kind": "class", "doc": "

\n", "bases": "TimeUnit"}, "sqlglot.expressions.IgnoreNulls": {"fullname": "sqlglot.expressions.IgnoreNulls", "modulename": "sqlglot.expressions", "qualname": "IgnoreNulls", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.RespectNulls": {"fullname": "sqlglot.expressions.RespectNulls", "modulename": "sqlglot.expressions", "qualname": "RespectNulls", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Func": {"fullname": "sqlglot.expressions.Func", "modulename": "sqlglot.expressions", "qualname": "Func", "kind": "class", "doc": "

The base class for all function expressions.

\n\n
Attributes:
\n\n
    \n
  • is_var_len_args (bool): if set to True the last argument defined in arg_types will be\ntreated as a variable length argument and the argument's value will be stored as a list.
  • \n
  • _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)\nfor this function expression. These values are used to map this node to a name during parsing\nas well as to provide the function's name during SQL string generation. By default the SQL\nname is set to the expression's class name transformed to snake case.
  • \n
\n", "bases": "Condition"}, "sqlglot.expressions.Func.from_arg_list": {"fullname": "sqlglot.expressions.Func.from_arg_list", "modulename": "sqlglot.expressions", "qualname": "Func.from_arg_list", "kind": "function", "doc": "

\n", "signature": "(cls, args):", "funcdef": "def"}, "sqlglot.expressions.Func.sql_names": {"fullname": "sqlglot.expressions.Func.sql_names", "modulename": "sqlglot.expressions", "qualname": "Func.sql_names", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.Func.sql_name": {"fullname": "sqlglot.expressions.Func.sql_name", "modulename": "sqlglot.expressions", "qualname": "Func.sql_name", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.Func.default_parser_mappings": {"fullname": "sqlglot.expressions.Func.default_parser_mappings", "modulename": "sqlglot.expressions", "qualname": "Func.default_parser_mappings", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.AggFunc": {"fullname": "sqlglot.expressions.AggFunc", "modulename": "sqlglot.expressions", "qualname": "AggFunc", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Abs": {"fullname": "sqlglot.expressions.Abs", "modulename": "sqlglot.expressions", "qualname": "Abs", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Anonymous": {"fullname": "sqlglot.expressions.Anonymous", "modulename": "sqlglot.expressions", "qualname": "Anonymous", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ApproxDistinct": {"fullname": "sqlglot.expressions.ApproxDistinct", "modulename": "sqlglot.expressions", "qualname": "ApproxDistinct", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Array": {"fullname": "sqlglot.expressions.Array", "modulename": "sqlglot.expressions", "qualname": "Array", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.GenerateSeries": {"fullname": "sqlglot.expressions.GenerateSeries", "modulename": "sqlglot.expressions", "qualname": "GenerateSeries", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayAgg": {"fullname": "sqlglot.expressions.ArrayAgg", "modulename": "sqlglot.expressions", "qualname": "ArrayAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.ArrayAll": {"fullname": "sqlglot.expressions.ArrayAll", "modulename": "sqlglot.expressions", "qualname": "ArrayAll", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayAny": {"fullname": "sqlglot.expressions.ArrayAny", "modulename": "sqlglot.expressions", "qualname": "ArrayAny", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayConcat": {"fullname": "sqlglot.expressions.ArrayConcat", "modulename": "sqlglot.expressions", "qualname": "ArrayConcat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayContains": {"fullname": "sqlglot.expressions.ArrayContains", "modulename": "sqlglot.expressions", "qualname": "ArrayContains", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayFilter": {"fullname": "sqlglot.expressions.ArrayFilter", "modulename": "sqlglot.expressions", "qualname": "ArrayFilter", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayJoin": {"fullname": "sqlglot.expressions.ArrayJoin", "modulename": "sqlglot.expressions", "qualname": "ArrayJoin", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySize": {"fullname": "sqlglot.expressions.ArraySize", "modulename": "sqlglot.expressions", "qualname": "ArraySize", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySort": {"fullname": "sqlglot.expressions.ArraySort", "modulename": "sqlglot.expressions", "qualname": "ArraySort", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySum": {"fullname": "sqlglot.expressions.ArraySum", "modulename": "sqlglot.expressions", "qualname": "ArraySum", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayUnionAgg": {"fullname": "sqlglot.expressions.ArrayUnionAgg", "modulename": "sqlglot.expressions", "qualname": "ArrayUnionAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Avg": {"fullname": "sqlglot.expressions.Avg", "modulename": "sqlglot.expressions", "qualname": "Avg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.AnyValue": {"fullname": "sqlglot.expressions.AnyValue", "modulename": "sqlglot.expressions", "qualname": "AnyValue", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Case": {"fullname": "sqlglot.expressions.Case", "modulename": "sqlglot.expressions", "qualname": "Case", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Cast": {"fullname": "sqlglot.expressions.Cast", "modulename": "sqlglot.expressions", "qualname": "Cast", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Cast.output_name": {"fullname": "sqlglot.expressions.Cast.output_name", "modulename": "sqlglot.expressions", "qualname": "Cast.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Cast.is_type": {"fullname": "sqlglot.expressions.Cast.is_type", "modulename": "sqlglot.expressions", "qualname": "Cast.is_type", "kind": "function", "doc": "

\n", "signature": "(self, dtype: sqlglot.expressions.DataType.Type) -> bool:", "funcdef": "def"}, "sqlglot.expressions.Collate": {"fullname": "sqlglot.expressions.Collate", "modulename": "sqlglot.expressions", "qualname": "Collate", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.TryCast": {"fullname": "sqlglot.expressions.TryCast", "modulename": "sqlglot.expressions", "qualname": "TryCast", "kind": "class", "doc": "

\n", "bases": "Cast"}, "sqlglot.expressions.Ceil": {"fullname": "sqlglot.expressions.Ceil", "modulename": "sqlglot.expressions", "qualname": "Ceil", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Coalesce": {"fullname": "sqlglot.expressions.Coalesce", "modulename": "sqlglot.expressions", "qualname": "Coalesce", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Concat": {"fullname": "sqlglot.expressions.Concat", "modulename": "sqlglot.expressions", "qualname": "Concat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ConcatWs": {"fullname": "sqlglot.expressions.ConcatWs", "modulename": "sqlglot.expressions", "qualname": "ConcatWs", "kind": "class", "doc": "

\n", "bases": "Concat"}, "sqlglot.expressions.Count": {"fullname": "sqlglot.expressions.Count", "modulename": "sqlglot.expressions", "qualname": "Count", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.CurrentDate": {"fullname": "sqlglot.expressions.CurrentDate", "modulename": "sqlglot.expressions", "qualname": "CurrentDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentDatetime": {"fullname": "sqlglot.expressions.CurrentDatetime", "modulename": "sqlglot.expressions", "qualname": "CurrentDatetime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentTime": {"fullname": "sqlglot.expressions.CurrentTime", "modulename": "sqlglot.expressions", "qualname": "CurrentTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentTimestamp": {"fullname": "sqlglot.expressions.CurrentTimestamp", "modulename": "sqlglot.expressions", "qualname": "CurrentTimestamp", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateAdd": {"fullname": "sqlglot.expressions.DateAdd", "modulename": "sqlglot.expressions", "qualname": "DateAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateSub": {"fullname": "sqlglot.expressions.DateSub", "modulename": "sqlglot.expressions", "qualname": "DateSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateDiff": {"fullname": "sqlglot.expressions.DateDiff", "modulename": "sqlglot.expressions", "qualname": "DateDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateTrunc": {"fullname": "sqlglot.expressions.DateTrunc", "modulename": "sqlglot.expressions", "qualname": "DateTrunc", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DatetimeAdd": {"fullname": "sqlglot.expressions.DatetimeAdd", "modulename": "sqlglot.expressions", "qualname": "DatetimeAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeSub": {"fullname": "sqlglot.expressions.DatetimeSub", "modulename": "sqlglot.expressions", "qualname": "DatetimeSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeDiff": {"fullname": "sqlglot.expressions.DatetimeDiff", "modulename": "sqlglot.expressions", "qualname": "DatetimeDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeTrunc": {"fullname": "sqlglot.expressions.DatetimeTrunc", "modulename": "sqlglot.expressions", "qualname": "DatetimeTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DayOfWeek": {"fullname": "sqlglot.expressions.DayOfWeek", "modulename": "sqlglot.expressions", "qualname": "DayOfWeek", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DayOfMonth": {"fullname": "sqlglot.expressions.DayOfMonth", "modulename": "sqlglot.expressions", "qualname": "DayOfMonth", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DayOfYear": {"fullname": "sqlglot.expressions.DayOfYear", "modulename": "sqlglot.expressions", "qualname": "DayOfYear", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.WeekOfYear": {"fullname": "sqlglot.expressions.WeekOfYear", "modulename": "sqlglot.expressions", "qualname": "WeekOfYear", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.LastDateOfMonth": {"fullname": "sqlglot.expressions.LastDateOfMonth", "modulename": "sqlglot.expressions", "qualname": "LastDateOfMonth", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Extract": {"fullname": "sqlglot.expressions.Extract", "modulename": "sqlglot.expressions", "qualname": "Extract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimestampAdd": {"fullname": "sqlglot.expressions.TimestampAdd", "modulename": "sqlglot.expressions", "qualname": "TimestampAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampSub": {"fullname": "sqlglot.expressions.TimestampSub", "modulename": "sqlglot.expressions", "qualname": "TimestampSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampDiff": {"fullname": "sqlglot.expressions.TimestampDiff", "modulename": "sqlglot.expressions", "qualname": "TimestampDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampTrunc": {"fullname": "sqlglot.expressions.TimestampTrunc", "modulename": "sqlglot.expressions", "qualname": "TimestampTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeAdd": {"fullname": "sqlglot.expressions.TimeAdd", "modulename": "sqlglot.expressions", "qualname": "TimeAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeSub": {"fullname": "sqlglot.expressions.TimeSub", "modulename": "sqlglot.expressions", "qualname": "TimeSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeDiff": {"fullname": "sqlglot.expressions.TimeDiff", "modulename": "sqlglot.expressions", "qualname": "TimeDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeTrunc": {"fullname": "sqlglot.expressions.TimeTrunc", "modulename": "sqlglot.expressions", "qualname": "TimeTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateFromParts": {"fullname": "sqlglot.expressions.DateFromParts", "modulename": "sqlglot.expressions", "qualname": "DateFromParts", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateStrToDate": {"fullname": "sqlglot.expressions.DateStrToDate", "modulename": "sqlglot.expressions", "qualname": "DateStrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateToDateStr": {"fullname": "sqlglot.expressions.DateToDateStr", "modulename": "sqlglot.expressions", "qualname": "DateToDateStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateToDi": {"fullname": "sqlglot.expressions.DateToDi", "modulename": "sqlglot.expressions", "qualname": "DateToDi", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Day": {"fullname": "sqlglot.expressions.Day", "modulename": "sqlglot.expressions", "qualname": "Day", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Decode": {"fullname": "sqlglot.expressions.Decode", "modulename": "sqlglot.expressions", "qualname": "Decode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DiToDate": {"fullname": "sqlglot.expressions.DiToDate", "modulename": "sqlglot.expressions", "qualname": "DiToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Encode": {"fullname": "sqlglot.expressions.Encode", "modulename": "sqlglot.expressions", "qualname": "Encode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Exp": {"fullname": "sqlglot.expressions.Exp", "modulename": "sqlglot.expressions", "qualname": "Exp", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Explode": {"fullname": "sqlglot.expressions.Explode", "modulename": "sqlglot.expressions", "qualname": "Explode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Floor": {"fullname": "sqlglot.expressions.Floor", "modulename": "sqlglot.expressions", "qualname": "Floor", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Greatest": {"fullname": "sqlglot.expressions.Greatest", "modulename": "sqlglot.expressions", "qualname": "Greatest", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.GroupConcat": {"fullname": "sqlglot.expressions.GroupConcat", "modulename": "sqlglot.expressions", "qualname": "GroupConcat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Hex": {"fullname": "sqlglot.expressions.Hex", "modulename": "sqlglot.expressions", "qualname": "Hex", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.If": {"fullname": "sqlglot.expressions.If", "modulename": "sqlglot.expressions", "qualname": "If", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.IfNull": {"fullname": "sqlglot.expressions.IfNull", "modulename": "sqlglot.expressions", "qualname": "IfNull", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Initcap": {"fullname": "sqlglot.expressions.Initcap", "modulename": "sqlglot.expressions", "qualname": "Initcap", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.JSONBContains": {"fullname": "sqlglot.expressions.JSONBContains", "modulename": "sqlglot.expressions", "qualname": "JSONBContains", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.JSONExtract": {"fullname": "sqlglot.expressions.JSONExtract", "modulename": "sqlglot.expressions", "qualname": "JSONExtract", "kind": "class", "doc": "

\n", "bases": "Binary, Func"}, "sqlglot.expressions.JSONExtractScalar": {"fullname": "sqlglot.expressions.JSONExtractScalar", "modulename": "sqlglot.expressions", "qualname": "JSONExtractScalar", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.JSONBExtract": {"fullname": "sqlglot.expressions.JSONBExtract", "modulename": "sqlglot.expressions", "qualname": "JSONBExtract", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.JSONBExtractScalar": {"fullname": "sqlglot.expressions.JSONBExtractScalar", "modulename": "sqlglot.expressions", "qualname": "JSONBExtractScalar", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.Least": {"fullname": "sqlglot.expressions.Least", "modulename": "sqlglot.expressions", "qualname": "Least", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Length": {"fullname": "sqlglot.expressions.Length", "modulename": "sqlglot.expressions", "qualname": "Length", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Levenshtein": {"fullname": "sqlglot.expressions.Levenshtein", "modulename": "sqlglot.expressions", "qualname": "Levenshtein", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Ln": {"fullname": "sqlglot.expressions.Ln", "modulename": "sqlglot.expressions", "qualname": "Ln", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log": {"fullname": "sqlglot.expressions.Log", "modulename": "sqlglot.expressions", "qualname": "Log", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log2": {"fullname": "sqlglot.expressions.Log2", "modulename": "sqlglot.expressions", "qualname": "Log2", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log10": {"fullname": "sqlglot.expressions.Log10", "modulename": "sqlglot.expressions", "qualname": "Log10", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.LogicalOr": {"fullname": "sqlglot.expressions.LogicalOr", "modulename": "sqlglot.expressions", "qualname": "LogicalOr", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Lower": {"fullname": "sqlglot.expressions.Lower", "modulename": "sqlglot.expressions", "qualname": "Lower", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Map": {"fullname": "sqlglot.expressions.Map", "modulename": "sqlglot.expressions", "qualname": "Map", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.VarMap": {"fullname": "sqlglot.expressions.VarMap", "modulename": "sqlglot.expressions", "qualname": "VarMap", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Matches": {"fullname": "sqlglot.expressions.Matches", "modulename": "sqlglot.expressions", "qualname": "Matches", "kind": "class", "doc": "

Oracle/Snowflake decode.\nhttps://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm\nPattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

\n", "bases": "Func"}, "sqlglot.expressions.Max": {"fullname": "sqlglot.expressions.Max", "modulename": "sqlglot.expressions", "qualname": "Max", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Min": {"fullname": "sqlglot.expressions.Min", "modulename": "sqlglot.expressions", "qualname": "Min", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Month": {"fullname": "sqlglot.expressions.Month", "modulename": "sqlglot.expressions", "qualname": "Month", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Nvl2": {"fullname": "sqlglot.expressions.Nvl2", "modulename": "sqlglot.expressions", "qualname": "Nvl2", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Posexplode": {"fullname": "sqlglot.expressions.Posexplode", "modulename": "sqlglot.expressions", "qualname": "Posexplode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Pow": {"fullname": "sqlglot.expressions.Pow", "modulename": "sqlglot.expressions", "qualname": "Pow", "kind": "class", "doc": "

\n", "bases": "Binary, Func"}, "sqlglot.expressions.PercentileCont": {"fullname": "sqlglot.expressions.PercentileCont", "modulename": "sqlglot.expressions", "qualname": "PercentileCont", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.PercentileDisc": {"fullname": "sqlglot.expressions.PercentileDisc", "modulename": "sqlglot.expressions", "qualname": "PercentileDisc", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Quantile": {"fullname": "sqlglot.expressions.Quantile", "modulename": "sqlglot.expressions", "qualname": "Quantile", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Quantiles": {"fullname": "sqlglot.expressions.Quantiles", "modulename": "sqlglot.expressions", "qualname": "Quantiles", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.QuantileIf": {"fullname": "sqlglot.expressions.QuantileIf", "modulename": "sqlglot.expressions", "qualname": "QuantileIf", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.ApproxQuantile": {"fullname": "sqlglot.expressions.ApproxQuantile", "modulename": "sqlglot.expressions", "qualname": "ApproxQuantile", "kind": "class", "doc": "

\n", "bases": "Quantile"}, "sqlglot.expressions.RangeN": {"fullname": "sqlglot.expressions.RangeN", "modulename": "sqlglot.expressions", "qualname": "RangeN", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ReadCSV": {"fullname": "sqlglot.expressions.ReadCSV", "modulename": "sqlglot.expressions", "qualname": "ReadCSV", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Reduce": {"fullname": "sqlglot.expressions.Reduce", "modulename": "sqlglot.expressions", "qualname": "Reduce", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpExtract": {"fullname": "sqlglot.expressions.RegexpExtract", "modulename": "sqlglot.expressions", "qualname": "RegexpExtract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpLike": {"fullname": "sqlglot.expressions.RegexpLike", "modulename": "sqlglot.expressions", "qualname": "RegexpLike", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpILike": {"fullname": "sqlglot.expressions.RegexpILike", "modulename": "sqlglot.expressions", "qualname": "RegexpILike", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpSplit": {"fullname": "sqlglot.expressions.RegexpSplit", "modulename": "sqlglot.expressions", "qualname": "RegexpSplit", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Repeat": {"fullname": "sqlglot.expressions.Repeat", "modulename": "sqlglot.expressions", "qualname": "Repeat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Round": {"fullname": "sqlglot.expressions.Round", "modulename": "sqlglot.expressions", "qualname": "Round", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RowNumber": {"fullname": "sqlglot.expressions.RowNumber", "modulename": "sqlglot.expressions", "qualname": "RowNumber", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SafeDivide": {"fullname": "sqlglot.expressions.SafeDivide", "modulename": "sqlglot.expressions", "qualname": "SafeDivide", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SetAgg": {"fullname": "sqlglot.expressions.SetAgg", "modulename": "sqlglot.expressions", "qualname": "SetAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.SortArray": {"fullname": "sqlglot.expressions.SortArray", "modulename": "sqlglot.expressions", "qualname": "SortArray", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Split": {"fullname": "sqlglot.expressions.Split", "modulename": "sqlglot.expressions", "qualname": "Split", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Substring": {"fullname": "sqlglot.expressions.Substring", "modulename": "sqlglot.expressions", "qualname": "Substring", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrPosition": {"fullname": "sqlglot.expressions.StrPosition", "modulename": "sqlglot.expressions", "qualname": "StrPosition", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToDate": {"fullname": "sqlglot.expressions.StrToDate", "modulename": "sqlglot.expressions", "qualname": "StrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToTime": {"fullname": "sqlglot.expressions.StrToTime", "modulename": "sqlglot.expressions", "qualname": "StrToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToUnix": {"fullname": "sqlglot.expressions.StrToUnix", "modulename": "sqlglot.expressions", "qualname": "StrToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.NumberToStr": {"fullname": "sqlglot.expressions.NumberToStr", "modulename": "sqlglot.expressions", "qualname": "NumberToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Struct": {"fullname": "sqlglot.expressions.Struct", "modulename": "sqlglot.expressions", "qualname": "Struct", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StructExtract": {"fullname": "sqlglot.expressions.StructExtract", "modulename": "sqlglot.expressions", "qualname": "StructExtract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Sum": {"fullname": "sqlglot.expressions.Sum", "modulename": "sqlglot.expressions", "qualname": "Sum", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Sqrt": {"fullname": "sqlglot.expressions.Sqrt", "modulename": "sqlglot.expressions", "qualname": "Sqrt", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Stddev": {"fullname": "sqlglot.expressions.Stddev", "modulename": "sqlglot.expressions", "qualname": "Stddev", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.StddevPop": {"fullname": "sqlglot.expressions.StddevPop", "modulename": "sqlglot.expressions", "qualname": "StddevPop", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.StddevSamp": {"fullname": "sqlglot.expressions.StddevSamp", "modulename": "sqlglot.expressions", "qualname": "StddevSamp", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.TimeToStr": {"fullname": "sqlglot.expressions.TimeToStr", "modulename": "sqlglot.expressions", "qualname": "TimeToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeToTimeStr": {"fullname": "sqlglot.expressions.TimeToTimeStr", "modulename": "sqlglot.expressions", "qualname": "TimeToTimeStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeToUnix": {"fullname": "sqlglot.expressions.TimeToUnix", "modulename": "sqlglot.expressions", "qualname": "TimeToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToDate": {"fullname": "sqlglot.expressions.TimeStrToDate", "modulename": "sqlglot.expressions", "qualname": "TimeStrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToTime": {"fullname": "sqlglot.expressions.TimeStrToTime", "modulename": "sqlglot.expressions", "qualname": "TimeStrToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToUnix": {"fullname": "sqlglot.expressions.TimeStrToUnix", "modulename": "sqlglot.expressions", "qualname": "TimeStrToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Trim": {"fullname": "sqlglot.expressions.Trim", "modulename": "sqlglot.expressions", "qualname": "Trim", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDsAdd": {"fullname": "sqlglot.expressions.TsOrDsAdd", "modulename": "sqlglot.expressions", "qualname": "TsOrDsAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TsOrDsToDateStr": {"fullname": "sqlglot.expressions.TsOrDsToDateStr", "modulename": "sqlglot.expressions", "qualname": "TsOrDsToDateStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDsToDate": {"fullname": "sqlglot.expressions.TsOrDsToDate", "modulename": "sqlglot.expressions", "qualname": "TsOrDsToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDiToDi": {"fullname": "sqlglot.expressions.TsOrDiToDi", "modulename": "sqlglot.expressions", "qualname": "TsOrDiToDi", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Unhex": {"fullname": "sqlglot.expressions.Unhex", "modulename": "sqlglot.expressions", "qualname": "Unhex", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToStr": {"fullname": "sqlglot.expressions.UnixToStr", "modulename": "sqlglot.expressions", "qualname": "UnixToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToTime": {"fullname": "sqlglot.expressions.UnixToTime", "modulename": "sqlglot.expressions", "qualname": "UnixToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToTimeStr": {"fullname": "sqlglot.expressions.UnixToTimeStr", "modulename": "sqlglot.expressions", "qualname": "UnixToTimeStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Upper": {"fullname": "sqlglot.expressions.Upper", "modulename": "sqlglot.expressions", "qualname": "Upper", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Variance": {"fullname": "sqlglot.expressions.Variance", "modulename": "sqlglot.expressions", "qualname": "Variance", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.VariancePop": {"fullname": "sqlglot.expressions.VariancePop", "modulename": "sqlglot.expressions", "qualname": "VariancePop", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Week": {"fullname": "sqlglot.expressions.Week", "modulename": "sqlglot.expressions", "qualname": "Week", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.XMLTable": {"fullname": "sqlglot.expressions.XMLTable", "modulename": "sqlglot.expressions", "qualname": "XMLTable", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Year": {"fullname": "sqlglot.expressions.Year", "modulename": "sqlglot.expressions", "qualname": "Year", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Use": {"fullname": "sqlglot.expressions.Use", "modulename": "sqlglot.expressions", "qualname": "Use", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Merge": {"fullname": "sqlglot.expressions.Merge", "modulename": "sqlglot.expressions", "qualname": "Merge", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.When": {"fullname": "sqlglot.expressions.When", "modulename": "sqlglot.expressions", "qualname": "When", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.maybe_parse": {"fullname": "sqlglot.expressions.maybe_parse", "modulename": "sqlglot.expressions", "qualname": "maybe_parse", "kind": "function", "doc": "

Gracefully handle a possible string or expression.

\n\n
Example:
\n\n
\n
\n
>>> maybe_parse("1")\n(LITERAL this: 1, is_string: False)\n>>> maybe_parse(to_identifier("x"))\n(IDENTIFIER this: x, quoted: False)\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • sql_or_expression: the SQL code string or an expression
  • \n
  • into: the SQLGlot Expression to parse into
  • \n
  • dialect: the dialect used to parse the input expressions (in the case that an\ninput expression is a SQL string).
  • \n
  • prefix: a string to prefix the sql with before it gets parsed\n(automatically includes a space)
  • \n
  • copy: whether or not to copy the expression.
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat an input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Expression: the parsed or given expression.

\n
\n", "signature": "(\tsql_or_expression: str | sqlglot.expressions.Expression,\t*,\tinto: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]], NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tprefix: Optional[str] = None,\tcopy: bool = False,\t**opts) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.union": {"fullname": "sqlglot.expressions.union", "modulename": "sqlglot.expressions", "qualname": "union", "kind": "function", "doc": "

Initializes a syntax tree from one UNION expression.

\n\n
Example:
\n\n
\n
\n
>>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo UNION SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the syntax tree for the UNION expression.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.intersect": {"fullname": "sqlglot.expressions.intersect", "modulename": "sqlglot.expressions", "qualname": "intersect", "kind": "function", "doc": "

Initializes a syntax tree from one INTERSECT expression.

\n\n
Example:
\n\n
\n
\n
>>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo INTERSECT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Intersect: the syntax tree for the INTERSECT expression.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.except_": {"fullname": "sqlglot.expressions.except_", "modulename": "sqlglot.expressions", "qualname": "except_", "kind": "function", "doc": "

Initializes a syntax tree from one EXCEPT expression.

\n\n
Example:
\n\n
\n
\n
>>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo EXCEPT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Except: the syntax tree for the EXCEPT statement.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.select": {"fullname": "sqlglot.expressions.select", "modulename": "sqlglot.expressions", "qualname": "select", "kind": "function", "doc": "

Initializes a syntax tree from one or multiple SELECT expressions.

\n\n
Example:
\n\n
\n
\n
>>> select("col1", "col2").from_("tbl").sql()\n'SELECT col1, col2 FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code string to parse as the expressions of a\nSELECT statement. If an Expression instance is passed, this is used as-is.
  • \n
  • dialect: the dialect used to parse the input expressions (in the case that an\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat an input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Select: the syntax tree for the SELECT statement.

\n
\n", "signature": "(\t*expressions: str | sqlglot.expressions.Expression,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.from_": {"fullname": "sqlglot.expressions.from_", "modulename": "sqlglot.expressions", "qualname": "from_", "kind": "function", "doc": "

Initializes a syntax tree from a FROM expression.

\n\n
Example:
\n\n
\n
\n
>>> from_("tbl").select("col1", "col2").sql()\n'SELECT col1, col2 FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a\nSELECT statement. If an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression (in the case that the\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat the input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Select: the syntax tree for the SELECT statement.

\n
\n", "signature": "(*expressions, dialect=None, **opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.update": {"fullname": "sqlglot.expressions.update", "modulename": "sqlglot.expressions", "qualname": "update", "kind": "function", "doc": "

Creates an update statement.

\n\n
Example:
\n\n
\n
\n
>>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()\n"UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *properties (Dict[str, Any]): dictionary of properties to set which are\nauto converted to sql objects eg None -> NULL
  • \n
  • where (str): sql conditional parsed into a WHERE statement
  • \n
  • from_ (str): sql statement parsed into a FROM statement
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Update: the syntax tree for the UPDATE statement.

\n
\n", "signature": "(\ttable,\tproperties,\twhere=None,\tfrom_=None,\tdialect=None,\t**opts) -> sqlglot.expressions.Update:", "funcdef": "def"}, "sqlglot.expressions.delete": {"fullname": "sqlglot.expressions.delete", "modulename": "sqlglot.expressions", "qualname": "delete", "kind": "function", "doc": "

Builds a delete statement.

\n\n
Example:
\n\n
\n
\n
>>> delete("my_table", where="id > 1").sql()\n'DELETE FROM my_table WHERE id > 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • where (str|Condition): sql conditional parsed into a WHERE statement
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Delete: the syntax tree for the DELETE statement.

\n
\n", "signature": "(table, where=None, dialect=None, **opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "sqlglot.expressions.condition": {"fullname": "sqlglot.expressions.condition", "modulename": "sqlglot.expressions", "qualname": "condition", "kind": "function", "doc": "

Initialize a logical condition expression.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").sql()\n'x = 1'\n
\n
\n \n

This is helpful for composing larger logical syntax trees:

\n \n
\n
>>> where = condition("x=1")\n>>> where = where.and_("y=1")\n>>> Select().from_("tbl").select("*").where(where).sql()\n'SELECT * FROM tbl WHERE x = 1 AND y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expression (str | Expression): the SQL code string to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression (in the case that the\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat the input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Condition: the expression

\n
\n", "signature": "(expression, dialect=None, **opts) -> sqlglot.expressions.Condition:", "funcdef": "def"}, "sqlglot.expressions.and_": {"fullname": "sqlglot.expressions.and_", "modulename": "sqlglot.expressions", "qualname": "and_", "kind": "function", "doc": "

Combine multiple conditions with an AND logical operator.

\n\n
Example:
\n\n
\n
\n
>>> and_("x=1", and_("y=1", "z=1")).sql()\n'x = 1 AND (y = 1 AND z = 1)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

And: the new condition

\n
\n", "signature": "(*expressions, dialect=None, **opts) -> sqlglot.expressions.And:", "funcdef": "def"}, "sqlglot.expressions.or_": {"fullname": "sqlglot.expressions.or_", "modulename": "sqlglot.expressions", "qualname": "or_", "kind": "function", "doc": "

Combine multiple conditions with an OR logical operator.

\n\n
Example:
\n\n
\n
\n
>>> or_("x=1", or_("y=1", "z=1")).sql()\n'x = 1 OR (y = 1 OR z = 1)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Or: the new condition

\n
\n", "signature": "(*expressions, dialect=None, **opts) -> sqlglot.expressions.Or:", "funcdef": "def"}, "sqlglot.expressions.not_": {"fullname": "sqlglot.expressions.not_", "modulename": "sqlglot.expressions", "qualname": "not_", "kind": "function", "doc": "

Wrap a condition with a NOT operator.

\n\n
Example:
\n\n
\n
\n
>>> not_("this_suit='black'").sql()\n"NOT this_suit = 'black'"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Not: the new condition

\n
\n", "signature": "(expression, dialect=None, **opts) -> sqlglot.expressions.Not:", "funcdef": "def"}, "sqlglot.expressions.paren": {"fullname": "sqlglot.expressions.paren", "modulename": "sqlglot.expressions", "qualname": "paren", "kind": "function", "doc": "

\n", "signature": "(expression) -> sqlglot.expressions.Paren:", "funcdef": "def"}, "sqlglot.expressions.to_identifier": {"fullname": "sqlglot.expressions.to_identifier", "modulename": "sqlglot.expressions", "qualname": "to_identifier", "kind": "function", "doc": "

Builds an identifier.

\n\n
Arguments:
\n\n
    \n
  • name: The name to turn into an identifier.
  • \n
  • quoted: Whether or not force quote the identifier.
  • \n
\n\n
Returns:
\n\n
\n

The identifier ast node.

\n
\n", "signature": "(name, quoted=None):", "funcdef": "def"}, "sqlglot.expressions.to_interval": {"fullname": "sqlglot.expressions.to_interval", "modulename": "sqlglot.expressions", "qualname": "to_interval", "kind": "function", "doc": "

Builds an interval expression from a string like '1 day' or '5 months'.

\n", "signature": "(\tinterval: str | sqlglot.expressions.Literal) -> sqlglot.expressions.Interval:", "funcdef": "def"}, "sqlglot.expressions.to_table": {"fullname": "sqlglot.expressions.to_table", "modulename": "sqlglot.expressions", "qualname": "to_table", "kind": "function", "doc": "

Create a table expression from a [catalog].[schema].[table] sql path. Catalog and schema are optional.\nIf a table is passed in then that table is returned.

\n\n
Arguments:
\n\n
    \n
  • sql_path: a [catalog].[schema].[table] string.
  • \n
\n\n
Returns:
\n\n
\n

A table expression.

\n
\n", "signature": "(\tsql_path: Union[str, sqlglot.expressions.Table, NoneType],\t**kwargs) -> Optional[sqlglot.expressions.Table]:", "funcdef": "def"}, "sqlglot.expressions.to_column": {"fullname": "sqlglot.expressions.to_column", "modulename": "sqlglot.expressions", "qualname": "to_column", "kind": "function", "doc": "

Create a column from a [table].[column] sql path. Schema is optional.

\n\n

If a column is passed in then that column is returned.

\n\n
Arguments:
\n\n
    \n
  • sql_path: [table].[column] string
  • \n
\n\n
Returns:
\n\n
\n

Table: A column expression

\n
\n", "signature": "(\tsql_path: str | sqlglot.expressions.Column,\t**kwargs) -> sqlglot.expressions.Column:", "funcdef": "def"}, "sqlglot.expressions.alias_": {"fullname": "sqlglot.expressions.alias_", "modulename": "sqlglot.expressions", "qualname": "alias_", "kind": "function", "doc": "

Create an Alias expression.

\n\n
Example:
\n\n
\n
\n
>>> alias_('foo', 'bar').sql()\n'foo AS bar'\n
\n
\n \n
\n
>>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()\n'(SELECT 1, 2) AS bar(a, b)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • alias: the alias name to use. If the name has\nspecial characters it is quoted.
  • \n
  • table: Whether or not to create a table alias, can also be a list of columns.
  • \n
  • quoted: whether or not to quote the alias
  • \n
  • dialect: the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Alias: the aliased expression

\n
\n", "signature": "(\texpression: str | sqlglot.expressions.Expression,\talias: str | sqlglot.expressions.Identifier,\ttable: Union[bool, Sequence[str | sqlglot.expressions.Identifier]] = False,\tquoted: Optional[bool] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts):", "funcdef": "def"}, "sqlglot.expressions.subquery": {"fullname": "sqlglot.expressions.subquery", "modulename": "sqlglot.expressions", "qualname": "subquery", "kind": "function", "doc": "

Build a subquery expression.

\n\n
Example:
\n\n
\n
\n
>>> subquery('select x from tbl', 'bar').select('x').sql()\n'SELECT x FROM (SELECT x FROM tbl) AS bar'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • alias (str | Expression): the alias name to use.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: a new select with the subquery expression included

\n
\n", "signature": "(expression, alias=None, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.column": {"fullname": "sqlglot.expressions.column", "modulename": "sqlglot.expressions", "qualname": "column", "kind": "function", "doc": "

Build a Column.

\n\n
Arguments:
\n\n
    \n
  • col: column name
  • \n
  • table: table name
  • \n
  • schema: schema name
  • \n
  • quoted: whether or not to force quote each part
  • \n
\n\n
Returns:
\n\n
\n

Column: column instance

\n
\n", "signature": "(\tcol: str | sqlglot.expressions.Identifier,\ttable: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tschema: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tquoted: Optional[bool] = None) -> sqlglot.expressions.Column:", "funcdef": "def"}, "sqlglot.expressions.cast": {"fullname": "sqlglot.expressions.cast", "modulename": "sqlglot.expressions", "qualname": "cast", "kind": "function", "doc": "

Cast an expression to a data type.

\n\n
Example:
\n\n
\n
\n
>>> cast('x + 1', 'int').sql()\n'CAST(x + 1 AS INT)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: The expression to cast.
  • \n
  • to: The datatype to cast to.
  • \n
\n\n
Returns:
\n\n
\n

A cast node.

\n
\n", "signature": "(\texpression: str | sqlglot.expressions.Expression,\tto: str | sqlglot.expressions.DataType | sqlglot.expressions.DataType.Type,\t**opts) -> sqlglot.expressions.Cast:", "funcdef": "def"}, "sqlglot.expressions.table_": {"fullname": "sqlglot.expressions.table_", "modulename": "sqlglot.expressions", "qualname": "table_", "kind": "function", "doc": "

Build a Table.

\n\n
Arguments:
\n\n
    \n
  • table (str | Expression): column name
  • \n
  • db (str | Expression): db name
  • \n
  • catalog (str | Expression): catalog name
  • \n
\n\n
Returns:
\n\n
\n

Table: table instance

\n
\n", "signature": "(\ttable,\tdb=None,\tcatalog=None,\tquoted=None,\talias=None) -> sqlglot.expressions.Table:", "funcdef": "def"}, "sqlglot.expressions.values": {"fullname": "sqlglot.expressions.values", "modulename": "sqlglot.expressions", "qualname": "values", "kind": "function", "doc": "

Build VALUES statement.

\n\n
Example:
\n\n
\n
\n
>>> values([(1, '2')]).sql()\n"VALUES (1, '2')"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • values: values statements that will be converted to SQL
  • \n
  • alias: optional alias
  • \n
  • columns: Optional list of ordered column names or ordered dictionary of column names to types.\nIf either are provided then an alias is also required.\nIf a dictionary is provided then the first column of the values will be casted to the expected type\nin order to help with type inference.
  • \n
\n\n
Returns:
\n\n
\n

Values: the Values expression object

\n
\n", "signature": "(\tvalues: Iterable[Tuple[Any, ...]],\talias: Optional[str] = None,\tcolumns: Union[Iterable[str], Dict[str, sqlglot.expressions.DataType], NoneType] = None) -> sqlglot.expressions.Values:", "funcdef": "def"}, "sqlglot.expressions.var": {"fullname": "sqlglot.expressions.var", "modulename": "sqlglot.expressions", "qualname": "var", "kind": "function", "doc": "

Build a SQL variable.

\n\n
Example:
\n\n
\n
\n
>>> repr(var('x'))\n'(VAR this: x)'\n
\n
\n \n
\n
>>> repr(var(column('x', table='y')))\n'(VAR this: x)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • name: The name of the var or an expression who's name will become the var.
  • \n
\n\n
Returns:
\n\n
\n

The new variable node.

\n
\n", "signature": "(\tname: Union[str, sqlglot.expressions.Expression, NoneType]) -> sqlglot.expressions.Var:", "funcdef": "def"}, "sqlglot.expressions.rename_table": {"fullname": "sqlglot.expressions.rename_table", "modulename": "sqlglot.expressions", "qualname": "rename_table", "kind": "function", "doc": "

Build ALTER TABLE... RENAME... expression

\n\n
Arguments:
\n\n
    \n
  • old_name: The old name of the table
  • \n
  • new_name: The new name of the table
  • \n
\n\n
Returns:
\n\n
\n

Alter table expression

\n
\n", "signature": "(\told_name: str | sqlglot.expressions.Table,\tnew_name: str | sqlglot.expressions.Table) -> sqlglot.expressions.AlterTable:", "funcdef": "def"}, "sqlglot.expressions.convert": {"fullname": "sqlglot.expressions.convert", "modulename": "sqlglot.expressions", "qualname": "convert", "kind": "function", "doc": "

Convert a python value into an expression object.

\n\n

Raises an error if a conversion is not possible.

\n\n
Arguments:
\n\n
    \n
  • value (Any): a python object
  • \n
\n\n
Returns:
\n\n
\n

Expression: the equivalent expression object

\n
\n", "signature": "(value) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.replace_children": {"fullname": "sqlglot.expressions.replace_children", "modulename": "sqlglot.expressions", "qualname": "replace_children", "kind": "function", "doc": "

Replace children of an expression with the result of a lambda fun(child) -> exp.

\n", "signature": "(expression, fun):", "funcdef": "def"}, "sqlglot.expressions.column_table_names": {"fullname": "sqlglot.expressions.column_table_names", "modulename": "sqlglot.expressions", "qualname": "column_table_names", "kind": "function", "doc": "

Return all table names referenced through columns in an expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))\n['c', 'a']\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to find table names
  • \n
\n\n
Returns:
\n\n
\n

list: A list of unique names

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.expressions.table_name": {"fullname": "sqlglot.expressions.table_name", "modulename": "sqlglot.expressions", "qualname": "table_name", "kind": "function", "doc": "

Get the full name of a table as a string.

\n\n
Arguments:
\n\n
    \n
  • table (exp.Table | str): table expression node or string.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> table_name(parse_one("select * from a.b.c").find(exp.Table))\n'a.b.c'\n
\n
\n
\n\n
Returns:
\n\n
\n

The table name.

\n
\n", "signature": "(table) -> str:", "funcdef": "def"}, "sqlglot.expressions.replace_tables": {"fullname": "sqlglot.expressions.replace_tables", "modulename": "sqlglot.expressions", "qualname": "replace_tables", "kind": "function", "doc": "

Replace all tables in expression according to the mapping.

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression node to be transformed and replaced.
  • \n
  • mapping (Dict[str, str]): mapping of table names.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()\n'SELECT * FROM c'\n
\n
\n
\n\n
Returns:
\n\n
\n

The mapped expression.

\n
\n", "signature": "(expression, mapping):", "funcdef": "def"}, "sqlglot.expressions.replace_placeholders": {"fullname": "sqlglot.expressions.replace_placeholders", "modulename": "sqlglot.expressions", "qualname": "replace_placeholders", "kind": "function", "doc": "

Replace placeholders in an expression.

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression node to be transformed and replaced.
  • \n
  • args: positional names that will substitute unnamed placeholders in the given order.
  • \n
  • kwargs: keyword arguments that will substitute named placeholders.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> replace_placeholders(\n...     parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo"\n... ).sql()\n'SELECT * FROM foo WHERE a = b'\n
\n
\n
\n\n
Returns:
\n\n
\n

The mapped expression.

\n
\n", "signature": "(expression, *args, **kwargs):", "funcdef": "def"}, "sqlglot.expressions.expand": {"fullname": "sqlglot.expressions.expand", "modulename": "sqlglot.expressions", "qualname": "expand", "kind": "function", "doc": "

Transforms an expression by expanding all referenced sources into subqueries.

\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()\n'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: The expression to expand.
  • \n
  • sources: A dictionary of name to Subqueryables.
  • \n
  • copy: Whether or not to copy the expression during transformation. Defaults to True.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tsources: Dict[str, sqlglot.expressions.Subqueryable],\tcopy=True) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.func": {"fullname": "sqlglot.expressions.func", "modulename": "sqlglot.expressions", "qualname": "func", "kind": "function", "doc": "

Returns a Func expression.

\n\n
Examples:
\n\n
\n
\n
>>> func("abs", 5).sql()\n'ABS(5)'\n
\n
\n \n
\n
>>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()\n'CAST(5 AS DOUBLE)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • name: the name of the function to build.
  • \n
  • args: the args used to instantiate the function of interest.
  • \n
  • dialect: the source dialect.
  • \n
  • kwargs: the kwargs used to instantiate the function of interest.
  • \n
\n\n
Note:
\n\n
\n

The arguments args and kwargs are mutually exclusive.

\n
\n\n
Returns:
\n\n
\n

An instance of the function of interest, or an anonymous function, if name doesn't\n correspond to an existing sqlglot.expressions.Func class.

\n
\n", "signature": "(\tname: str,\t*args,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**kwargs) -> sqlglot.expressions.Func:", "funcdef": "def"}, "sqlglot.expressions.true": {"fullname": "sqlglot.expressions.true", "modulename": "sqlglot.expressions", "qualname": "true", "kind": "function", "doc": "

Returns a true Boolean expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.expressions.false": {"fullname": "sqlglot.expressions.false", "modulename": "sqlglot.expressions", "qualname": "false", "kind": "function", "doc": "

Returns a false Boolean expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.expressions.null": {"fullname": "sqlglot.expressions.null", "modulename": "sqlglot.expressions", "qualname": "null", "kind": "function", "doc": "

Returns a Null expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.generator": {"fullname": "sqlglot.generator", "modulename": "sqlglot.generator", "kind": "module", "doc": "

\n"}, "sqlglot.generator.Generator": {"fullname": "sqlglot.generator.Generator", "modulename": "sqlglot.generator", "qualname": "Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n"}, "sqlglot.generator.Generator.__init__": {"fullname": "sqlglot.generator.Generator.__init__", "modulename": "sqlglot.generator", "qualname": "Generator.__init__", "kind": "function", "doc": "

\n", "signature": "(\ttime_mapping=None,\ttime_trie=None,\tpretty=None,\tquote_start=None,\tquote_end=None,\tidentifier_start=None,\tidentifier_end=None,\tidentify=False,\tnormalize=False,\tstring_escape=None,\tidentifier_escape=None,\tpad=2,\tindent=2,\tindex_offset=0,\tunnest_column_only=False,\talias_post_tablesample=False,\tnormalize_functions='upper',\tunsupported_level=<ErrorLevel.WARN: 'WARN'>,\tnull_ordering=None,\tmax_unsupported=3,\tleading_comma=False,\tmax_text_width=80,\tcomments=True)"}, "sqlglot.generator.Generator.generate": {"fullname": "sqlglot.generator.Generator.generate", "modulename": "sqlglot.generator", "qualname": "Generator.generate", "kind": "function", "doc": "

Generates a SQL string by interpreting the given syntax tree.

\n\n

Args\n expression: the syntax tree.

\n\n

Returns\n the SQL string.

\n", "signature": "(self, expression: Optional[sqlglot.expressions.Expression]) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.unsupported": {"fullname": "sqlglot.generator.Generator.unsupported", "modulename": "sqlglot.generator", "qualname": "Generator.unsupported", "kind": "function", "doc": "

\n", "signature": "(self, message: str) -> None:", "funcdef": "def"}, "sqlglot.generator.Generator.sep": {"fullname": "sqlglot.generator.Generator.sep", "modulename": "sqlglot.generator", "qualname": "Generator.sep", "kind": "function", "doc": "

\n", "signature": "(self, sep: str = ' ') -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.seg": {"fullname": "sqlglot.generator.Generator.seg", "modulename": "sqlglot.generator", "qualname": "Generator.seg", "kind": "function", "doc": "

\n", "signature": "(self, sql: str, sep: str = ' ') -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.pad_comment": {"fullname": "sqlglot.generator.Generator.pad_comment", "modulename": "sqlglot.generator", "qualname": "Generator.pad_comment", "kind": "function", "doc": "

\n", "signature": "(self, comment: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.maybe_comment": {"fullname": "sqlglot.generator.Generator.maybe_comment", "modulename": "sqlglot.generator", "qualname": "Generator.maybe_comment", "kind": "function", "doc": "

\n", "signature": "(self, sql: str, expression: sqlglot.expressions.Expression) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.wrap": {"fullname": "sqlglot.generator.Generator.wrap", "modulename": "sqlglot.generator", "qualname": "Generator.wrap", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression | str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.no_identify": {"fullname": "sqlglot.generator.Generator.no_identify", "modulename": "sqlglot.generator", "qualname": "Generator.no_identify", "kind": "function", "doc": "

\n", "signature": "(self, func: Callable[..., str], *args, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.normalize_func": {"fullname": "sqlglot.generator.Generator.normalize_func", "modulename": "sqlglot.generator", "qualname": "Generator.normalize_func", "kind": "function", "doc": "

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\n", "signature": "(self, expression: sqlglot.expressions.Overlaps) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.distance_sql": {"fullname": "sqlglot.generator.Generator.distance_sql", "modulename": "sqlglot.generator", "qualname": "Generator.distance_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Distance) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.dot_sql": {"fullname": "sqlglot.generator.Generator.dot_sql", "modulename": "sqlglot.generator", "qualname": "Generator.dot_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Dot) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.eq_sql": {"fullname": "sqlglot.generator.Generator.eq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.eq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.EQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.escape_sql": {"fullname": "sqlglot.generator.Generator.escape_sql", "modulename": "sqlglot.generator", "qualname": "Generator.escape_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Escape) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.glob_sql": {"fullname": "sqlglot.generator.Generator.glob_sql", "modulename": "sqlglot.generator", "qualname": "Generator.glob_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Glob) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.gt_sql": {"fullname": "sqlglot.generator.Generator.gt_sql", "modulename": "sqlglot.generator", "qualname": "Generator.gt_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.GT) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.gte_sql": {"fullname": "sqlglot.generator.Generator.gte_sql", "modulename": "sqlglot.generator", "qualname": "Generator.gte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.GTE) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.ilike_sql": {"fullname": "sqlglot.generator.Generator.ilike_sql", "modulename": "sqlglot.generator", "qualname": "Generator.ilike_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ILike) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.is_sql": {"fullname": "sqlglot.generator.Generator.is_sql", "modulename": "sqlglot.generator", "qualname": "Generator.is_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Is) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.like_sql": {"fullname": "sqlglot.generator.Generator.like_sql", "modulename": "sqlglot.generator", "qualname": "Generator.like_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Like) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.similarto_sql": {"fullname": "sqlglot.generator.Generator.similarto_sql", "modulename": "sqlglot.generator", "qualname": "Generator.similarto_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SimilarTo) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.lt_sql": {"fullname": "sqlglot.generator.Generator.lt_sql", "modulename": "sqlglot.generator", "qualname": "Generator.lt_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.LT) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.lte_sql": {"fullname": "sqlglot.generator.Generator.lte_sql", "modulename": "sqlglot.generator", "qualname": "Generator.lte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.LTE) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.mod_sql": {"fullname": "sqlglot.generator.Generator.mod_sql", "modulename": "sqlglot.generator", "qualname": "Generator.mod_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Mod) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.mul_sql": {"fullname": "sqlglot.generator.Generator.mul_sql", "modulename": "sqlglot.generator", "qualname": "Generator.mul_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Mul) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.neq_sql": {"fullname": "sqlglot.generator.Generator.neq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.neq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NEQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.nullsafeeq_sql": {"fullname": "sqlglot.generator.Generator.nullsafeeq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.nullsafeeq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NullSafeEQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.nullsafeneq_sql": {"fullname": "sqlglot.generator.Generator.nullsafeneq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.nullsafeneq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NullSafeNEQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.or_sql": {"fullname": "sqlglot.generator.Generator.or_sql", "modulename": "sqlglot.generator", "qualname": "Generator.or_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Or) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.slice_sql": {"fullname": "sqlglot.generator.Generator.slice_sql", "modulename": "sqlglot.generator", "qualname": "Generator.slice_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Slice) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.sub_sql": {"fullname": "sqlglot.generator.Generator.sub_sql", "modulename": "sqlglot.generator", "qualname": "Generator.sub_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Sub) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.trycast_sql": {"fullname": "sqlglot.generator.Generator.trycast_sql", "modulename": "sqlglot.generator", "qualname": "Generator.trycast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.TryCast) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.use_sql": {"fullname": "sqlglot.generator.Generator.use_sql", "modulename": "sqlglot.generator", "qualname": "Generator.use_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Use) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.binary": {"fullname": "sqlglot.generator.Generator.binary", "modulename": "sqlglot.generator", "qualname": "Generator.binary", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Binary, op: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.function_fallback_sql": {"fullname": "sqlglot.generator.Generator.function_fallback_sql", "modulename": "sqlglot.generator", "qualname": "Generator.function_fallback_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Func) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.func": {"fullname": "sqlglot.generator.Generator.func", "modulename": "sqlglot.generator", "qualname": "Generator.func", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\t*args: Union[str, sqlglot.expressions.Expression, NoneType]) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.format_args": {"fullname": "sqlglot.generator.Generator.format_args", "modulename": "sqlglot.generator", "qualname": "Generator.format_args", "kind": "function", "doc": "

\n", "signature": "(self, *args: Union[str, sqlglot.expressions.Expression, NoneType]) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.text_width": {"fullname": "sqlglot.generator.Generator.text_width", "modulename": "sqlglot.generator", "qualname": "Generator.text_width", "kind": "function", "doc": "

\n", "signature": "(self, args: Iterable) -> int:", "funcdef": "def"}, "sqlglot.generator.Generator.format_time": {"fullname": "sqlglot.generator.Generator.format_time", "modulename": "sqlglot.generator", "qualname": "Generator.format_time", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression) -> Optional[str]:", "funcdef": "def"}, "sqlglot.generator.Generator.expressions": {"fullname": "sqlglot.generator.Generator.expressions", "modulename": "sqlglot.generator", "qualname": "Generator.expressions", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.Expression,\tkey: Optional[str] = None,\tflat: bool = False,\tindent: bool = True,\tsep: str = ', ',\tprefix: str = '') -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.op_expressions": {"fullname": "sqlglot.generator.Generator.op_expressions", "modulename": "sqlglot.generator", "qualname": "Generator.op_expressions", "kind": "function", "doc": "

\n", "signature": "(\tself,\top: str,\texpression: sqlglot.expressions.Expression,\tflat: bool = False) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.naked_property": {"fullname": "sqlglot.generator.Generator.naked_property", "modulename": "sqlglot.generator", "qualname": "Generator.naked_property", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Property) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.set_operation": {"fullname": "sqlglot.generator.Generator.set_operation", "modulename": "sqlglot.generator", "qualname": "Generator.set_operation", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression, op: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.tag_sql": {"fullname": "sqlglot.generator.Generator.tag_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tag_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Tag) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.token_sql": {"fullname": "sqlglot.generator.Generator.token_sql", "modulename": "sqlglot.generator", "qualname": "Generator.token_sql", "kind": "function", "doc": "

\n", "signature": "(self, token_type: sqlglot.tokens.TokenType) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.userdefinedfunction_sql": {"fullname": "sqlglot.generator.Generator.userdefinedfunction_sql", "modulename": "sqlglot.generator", "qualname": "Generator.userdefinedfunction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.UserDefinedFunction) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.joinhint_sql": {"fullname": "sqlglot.generator.Generator.joinhint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.joinhint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.JoinHint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.kwarg_sql": {"fullname": "sqlglot.generator.Generator.kwarg_sql", "modulename": "sqlglot.generator", "qualname": "Generator.kwarg_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Kwarg) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.when_sql": {"fullname": "sqlglot.generator.Generator.when_sql", "modulename": "sqlglot.generator", "qualname": "Generator.when_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.When) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.merge_sql": {"fullname": "sqlglot.generator.Generator.merge_sql", "modulename": "sqlglot.generator", "qualname": "Generator.merge_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Merge) -> str:", "funcdef": "def"}, "sqlglot.helper": {"fullname": "sqlglot.helper", "modulename": "sqlglot.helper", "kind": "module", "doc": "

\n"}, "sqlglot.helper.AutoName": {"fullname": "sqlglot.helper.AutoName", "modulename": "sqlglot.helper", "qualname": "AutoName", "kind": "class", "doc": "

This is used for creating enum classes where auto() is the string form of the corresponding value's name.

\n", "bases": "enum.Enum"}, "sqlglot.helper.seq_get": {"fullname": "sqlglot.helper.seq_get", "modulename": "sqlglot.helper", "qualname": "seq_get", "kind": "function", "doc": "

Returns the value in seq at position index, or None if index is out of bounds.

\n", "signature": "(seq: Sequence[~T], index: int) -> Optional[~T]:", "funcdef": "def"}, "sqlglot.helper.ensure_list": {"fullname": "sqlglot.helper.ensure_list", "modulename": "sqlglot.helper", "qualname": "ensure_list", "kind": "function", "doc": "

Ensures that a value is a list, otherwise casts or wraps it into one.

\n\n
Arguments:
\n\n
    \n
  • value: the value of interest.
  • \n
\n\n
Returns:
\n\n
\n

The value cast as a list if it's a list or a tuple, or else the value wrapped in a list.

\n
\n", "signature": "(value):", "funcdef": "def"}, "sqlglot.helper.ensure_collection": {"fullname": "sqlglot.helper.ensure_collection", "modulename": "sqlglot.helper", "qualname": "ensure_collection", "kind": "function", "doc": "

Ensures that a value is a collection (excluding str and bytes), otherwise wraps it into a list.

\n\n
Arguments:
\n\n
    \n
  • value: the value of interest.
  • \n
\n\n
Returns:
\n\n
\n

The value if it's a collection, or else the value wrapped in a list.

\n
\n", "signature": "(value):", "funcdef": "def"}, "sqlglot.helper.csv": {"fullname": "sqlglot.helper.csv", "modulename": "sqlglot.helper", "qualname": "csv", "kind": "function", "doc": "

Formats any number of string arguments as CSV.

\n\n
Arguments:
\n\n
    \n
  • args: the string arguments to format.
  • \n
  • sep: the argument separator.
  • \n
\n\n
Returns:
\n\n
\n

The arguments formatted as a CSV string.

\n
\n", "signature": "(*args, sep: str = ', ') -> str:", "funcdef": "def"}, "sqlglot.helper.subclasses": {"fullname": "sqlglot.helper.subclasses", "modulename": "sqlglot.helper", "qualname": "subclasses", "kind": "function", "doc": "

Returns all subclasses for a collection of classes, possibly excluding some of them.

\n\n
Arguments:
\n\n
    \n
  • module_name: the name of the module to search for subclasses in.
  • \n
  • classes: class(es) we want to find the subclasses of.
  • \n
  • exclude: class(es) we want to exclude from the returned list.
  • \n
\n\n
Returns:
\n\n
\n

The target subclasses.

\n
\n", "signature": "(\tmodule_name: str,\tclasses: Union[Type, Tuple[Type, ...]],\texclude: Union[Type, Tuple[Type, ...]] = ()) -> List[Type]:", "funcdef": "def"}, "sqlglot.helper.apply_index_offset": {"fullname": "sqlglot.helper.apply_index_offset", "modulename": "sqlglot.helper", "qualname": "apply_index_offset", "kind": "function", "doc": "

Applies an offset to a given integer literal expression.

\n\n
Arguments:
\n\n
    \n
  • expressions: the expression the offset will be applied to, wrapped in a list.
  • \n
  • offset: the offset that will be applied.
  • \n
\n\n
Returns:
\n\n
\n

The original expression with the offset applied to it, wrapped in a list. If the provided\n expressions argument contains more than one expressions, it's returned unaffected.

\n
\n", "signature": "(expressions: List[Optional[~E]], offset: int) -> List[Optional[~E]]:", "funcdef": "def"}, "sqlglot.helper.camel_to_snake_case": {"fullname": "sqlglot.helper.camel_to_snake_case", "modulename": "sqlglot.helper", "qualname": "camel_to_snake_case", "kind": "function", "doc": "

Converts name from camelCase to snake_case and returns the result.

\n", "signature": "(name: str) -> str:", "funcdef": "def"}, "sqlglot.helper.while_changing": {"fullname": "sqlglot.helper.while_changing", "modulename": "sqlglot.helper", "qualname": "while_changing", "kind": "function", "doc": "

Applies a transformation to a given expression until a fix point is reached.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression to be transformed.
  • \n
  • func: the transformation to be applied.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: Optional[sqlglot.expressions.Expression],\tfunc: Callable[[Optional[sqlglot.expressions.Expression]], ~E]) -> ~E:", "funcdef": "def"}, "sqlglot.helper.tsort": {"fullname": "sqlglot.helper.tsort", "modulename": "sqlglot.helper", "qualname": "tsort", "kind": "function", "doc": "

Sorts a given directed acyclic graph in topological order.

\n\n
Arguments:
\n\n
    \n
  • dag: the graph to be sorted.
  • \n
\n\n
Returns:
\n\n
\n

A list that contains all of the graph's nodes in topological order.

\n
\n", "signature": "(dag: Dict[~T, List[~T]]) -> List[~T]:", "funcdef": "def"}, "sqlglot.helper.open_file": {"fullname": "sqlglot.helper.open_file", "modulename": "sqlglot.helper", "qualname": "open_file", "kind": "function", "doc": "

Open a file that may be compressed as gzip and return it in universal newline mode.

\n", "signature": "(file_name: str) -> <class 'TextIO'>:", "funcdef": "def"}, "sqlglot.helper.csv_reader": {"fullname": "sqlglot.helper.csv_reader", "modulename": "sqlglot.helper", "qualname": "csv_reader", "kind": "function", "doc": "

Returns a csv reader given the expression READ_CSV(name, ['delimiter', '|', ...]).

\n\n
Arguments:
\n\n
    \n
  • read_csv: a ReadCSV function call
  • \n
\n\n
Yields:
\n\n
\n

A python csv reader.

\n
\n", "signature": "(read_csv: sqlglot.expressions.ReadCSV) -> Any:", "funcdef": "def"}, "sqlglot.helper.find_new_name": {"fullname": "sqlglot.helper.find_new_name", "modulename": "sqlglot.helper", "qualname": "find_new_name", "kind": "function", "doc": "

Searches for a new name.

\n\n
Arguments:
\n\n
    \n
  • taken: a collection of taken names.
  • \n
  • base: base name to alter.
  • \n
\n\n
Returns:
\n\n
\n

The new, available name.

\n
\n", "signature": "(taken: Collection[str], base: str) -> str:", "funcdef": "def"}, "sqlglot.helper.object_to_dict": {"fullname": "sqlglot.helper.object_to_dict", "modulename": "sqlglot.helper", "qualname": "object_to_dict", "kind": "function", "doc": "

Returns a dictionary created from an object's attributes.

\n", "signature": "(obj: Any, **kwargs) -> Dict:", "funcdef": "def"}, "sqlglot.helper.split_num_words": {"fullname": "sqlglot.helper.split_num_words", "modulename": "sqlglot.helper", "qualname": "split_num_words", "kind": "function", "doc": "

Perform a split on a value and return N words as a result with None used for words that don't exist.

\n\n
Arguments:
\n\n
    \n
  • value: the value to be split.
  • \n
  • sep: the value to use to split on.
  • \n
  • min_num_words: the minimum number of words that are going to be in the result.
  • \n
  • fill_from_start: indicates that if None values should be inserted at the start or end of the list.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> split_num_words("db.table", ".", 3)\n[None, 'db', 'table']\n>>> split_num_words("db.table", ".", 3, fill_from_start=False)\n['db', 'table', None]\n>>> split_num_words("db.table", ".", 1)\n['db', 'table']\n
\n
\n
\n\n
Returns:
\n\n
\n

The list of words returned by split, possibly augmented by a number of None values.

\n
\n", "signature": "(\tvalue: str,\tsep: str,\tmin_num_words: int,\tfill_from_start: bool = True) -> List[Optional[str]]:", "funcdef": "def"}, "sqlglot.helper.is_iterable": {"fullname": "sqlglot.helper.is_iterable", "modulename": "sqlglot.helper", "qualname": "is_iterable", "kind": "function", "doc": "

Checks if the value is an iterable, excluding the types str and bytes.

\n\n
Examples:
\n\n
\n
\n
>>> is_iterable([1,2])\nTrue\n>>> is_iterable("test")\nFalse\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • value: the value to check if it is an iterable.
  • \n
\n\n
Returns:
\n\n
\n

A bool value indicating if it is an iterable.

\n
\n", "signature": "(value: Any) -> bool:", "funcdef": "def"}, "sqlglot.helper.flatten": {"fullname": "sqlglot.helper.flatten", "modulename": "sqlglot.helper", "qualname": "flatten", "kind": "function", "doc": "

Flattens an iterable that can contain both iterable and non-iterable elements. Objects of\ntype str and bytes are not regarded as iterables.

\n\n
Examples:
\n\n
\n
\n
>>> list(flatten([[1, 2], 3, {4}, (5, "bla")]))\n[1, 2, 3, 4, 5, 'bla']\n>>> list(flatten([1, 2, 3]))\n[1, 2, 3]\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • values: the value to be flattened.
  • \n
\n\n
Yields:
\n\n
\n

Non-iterable elements in values.

\n
\n", "signature": "(values: Iterable[Union[Iterable[Any], Any]]) -> Iterator[Any]:", "funcdef": "def"}, "sqlglot.helper.count_params": {"fullname": "sqlglot.helper.count_params", "modulename": "sqlglot.helper", "qualname": "count_params", "kind": "function", "doc": "

Returns the number of formal parameters expected by a function, without counting \"self\"\nand \"cls\", in case of instance and class methods, respectively.

\n", "signature": "(function: Callable) -> int:", "funcdef": "def"}, "sqlglot.helper.dict_depth": {"fullname": "sqlglot.helper.dict_depth", "modulename": "sqlglot.helper", "qualname": "dict_depth", "kind": "function", "doc": "

Get the nesting depth of a dictionary.

\n\n
For example:
\n\n
\n
\n
>>> dict_depth(None)\n0\n>>> dict_depth({})\n1\n>>> dict_depth({"a": "b"})\n1\n>>> dict_depth({"a": {}})\n2\n>>> dict_depth({"a": {"b": {}}})\n3\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • d (dict): dictionary
  • \n
\n\n
Returns:
\n\n
\n

int: depth

\n
\n", "signature": "(d: Dict) -> int:", "funcdef": "def"}, "sqlglot.helper.first": {"fullname": "sqlglot.helper.first", "modulename": "sqlglot.helper", "qualname": "first", "kind": "function", "doc": "

Returns the first element from an iterable.

\n\n

Useful for sets.

\n", "signature": "(it: Iterable[~T]) -> ~T:", "funcdef": "def"}, "sqlglot.lineage": {"fullname": "sqlglot.lineage", "modulename": "sqlglot.lineage", "kind": "module", "doc": "

\n"}, "sqlglot.lineage.Node": {"fullname": "sqlglot.lineage.Node", "modulename": "sqlglot.lineage", "qualname": "Node", "kind": "class", "doc": "

\n"}, "sqlglot.lineage.Node.__init__": {"fullname": "sqlglot.lineage.Node.__init__", "modulename": "sqlglot.lineage", "qualname": "Node.__init__", "kind": "function", "doc": "

\n", "signature": "(\tname: str,\texpression: sqlglot.expressions.Expression,\tsource: sqlglot.expressions.Expression,\tdownstream: List[sqlglot.lineage.Node] = <factory>)"}, "sqlglot.lineage.Node.walk": {"fullname": "sqlglot.lineage.Node.walk", "modulename": "sqlglot.lineage", "qualname": "Node.walk", "kind": "function", "doc": "

\n", "signature": "(self) -> Iterator[sqlglot.lineage.Node]:", "funcdef": "def"}, "sqlglot.lineage.Node.to_html": {"fullname": "sqlglot.lineage.Node.to_html", "modulename": "sqlglot.lineage", "qualname": "Node.to_html", "kind": "function", "doc": "

\n", "signature": "(self, **opts) -> sqlglot.lineage.LineageHTML:", "funcdef": "def"}, "sqlglot.lineage.lineage": {"fullname": "sqlglot.lineage.lineage", "modulename": "sqlglot.lineage", "qualname": "lineage", "kind": "function", "doc": "

Build the lineage graph for a column of a SQL query.

\n\n
Arguments:
\n\n
    \n
  • column: The column to build the lineage for.
  • \n
  • sql: The SQL string or expression.
  • \n
  • schema: The schema of tables.
  • \n
  • sources: A mapping of queries which will be used to continue building lineage.
  • \n
  • rules: Optimizer rules to apply, by default only qualifying tables and columns.
  • \n
  • dialect: The dialect of input SQL.
  • \n
\n\n
Returns:
\n\n
\n

A lineage node.

\n
\n", "signature": "(\tcolumn: str | sqlglot.expressions.Column,\tsql: str | sqlglot.expressions.Expression,\tschema: Union[Dict, sqlglot.schema.Schema, NoneType] = None,\tsources: Optional[Dict[str, str | sqlglot.expressions.Subqueryable]] = None,\trules: Sequence[Callable] = (<function qualify_tables at 0x7fc261078040>, <function qualify_columns at 0x7fc26108aef0>, <function expand_laterals at 0x7fc2610896c0>),\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.lineage.Node:", "funcdef": "def"}, "sqlglot.lineage.LineageHTML": {"fullname": "sqlglot.lineage.LineageHTML", "modulename": "sqlglot.lineage", "qualname": "LineageHTML", "kind": "class", "doc": "

Node to HTML generator using vis.js.

\n\n

https://visjs.github.io/vis-network/docs/network/

\n"}, "sqlglot.lineage.LineageHTML.__init__": {"fullname": "sqlglot.lineage.LineageHTML.__init__", "modulename": "sqlglot.lineage", "qualname": "LineageHTML.__init__", "kind": "function", "doc": "

\n", "signature": "(\tnode: sqlglot.lineage.Node,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\timports: bool = True,\t**opts: Any)"}, "sqlglot.optimizer": {"fullname": "sqlglot.optimizer", "modulename": "sqlglot.optimizer", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.annotate_types": {"fullname": "sqlglot.optimizer.annotate_types", "modulename": "sqlglot.optimizer.annotate_types", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.annotate_types.annotate_types": {"fullname": "sqlglot.optimizer.annotate_types.annotate_types", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "annotate_types", "kind": "function", "doc": "

Recursively infer & annotate types in an expression syntax tree against a schema.\nAssumes that we've already executed the optimizer's qualify_columns step.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> schema = {"y": {"cola": "SMALLINT"}}\n>>> sql = "SELECT x.cola + 2.5 AS cola FROM (SELECT y.cola AS cola FROM y AS y) AS x"\n>>> annotated_expr = annotate_types(sqlglot.parse_one(sql), schema=schema)\n>>> annotated_expr.expressions[0].type.this  # Get the type of "x.cola + 2.5 AS cola"\n<Type.DOUBLE: 'DOUBLE'>\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): Expression to annotate.
  • \n
  • schema (dict|sqlglot.optimizer.Schema): Database schema.
  • \n
  • annotators (dict): Maps expression type to corresponding annotation function.
  • \n
  • coerces_to (dict): Maps expression type to set of types that it can be coerced into.
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: expression annotated with types

\n
\n", "signature": "(expression, schema=None, annotators=None, coerces_to=None):", "funcdef": "def"}, "sqlglot.optimizer.annotate_types.TypeAnnotator": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator", "kind": "class", "doc": "

\n"}, "sqlglot.optimizer.annotate_types.TypeAnnotator.__init__": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator.__init__", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator.__init__", "kind": "function", "doc": "

\n", "signature": "(schema=None, annotators=None, coerces_to=None)"}, "sqlglot.optimizer.annotate_types.TypeAnnotator.annotate": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator.annotate", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator.annotate", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.optimizer.canonicalize": {"fullname": "sqlglot.optimizer.canonicalize", "modulename": "sqlglot.optimizer.canonicalize", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.canonicalize.canonicalize": {"fullname": "sqlglot.optimizer.canonicalize.canonicalize", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "canonicalize", "kind": "function", "doc": "

Converts a sql expression into a standard form.

\n\n

This method relies on annotate_types because many of the\nconversions rely on type inference.

\n\n
Arguments:
\n\n
    \n
  • expression: The expression to canonicalize.
  • \n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.add_text_to_concat": {"fullname": "sqlglot.optimizer.canonicalize.add_text_to_concat", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "add_text_to_concat", "kind": "function", "doc": "

\n", "signature": "(node: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.coerce_type": {"fullname": "sqlglot.optimizer.canonicalize.coerce_type", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "coerce_type", "kind": "function", "doc": "

\n", "signature": "(node: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.remove_redundant_casts": {"fullname": "sqlglot.optimizer.canonicalize.remove_redundant_casts", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "remove_redundant_casts", "kind": "function", "doc": "

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.eliminate_ctes": {"fullname": "sqlglot.optimizer.eliminate_ctes", "modulename": "sqlglot.optimizer.eliminate_ctes", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_ctes.eliminate_ctes": {"fullname": "sqlglot.optimizer.eliminate_ctes.eliminate_ctes", "modulename": "sqlglot.optimizer.eliminate_ctes", "qualname": "eliminate_ctes", "kind": "function", "doc": "

Remove unused CTEs from an expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "WITH y AS (SELECT a FROM x) SELECT a FROM z"\n>>> expression = sqlglot.parse_one(sql)\n>>> eliminate_ctes(expression).sql()\n'SELECT a FROM z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_joins": {"fullname": "sqlglot.optimizer.eliminate_joins", "modulename": "sqlglot.optimizer.eliminate_joins", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_joins.eliminate_joins": {"fullname": "sqlglot.optimizer.eliminate_joins.eliminate_joins", "modulename": "sqlglot.optimizer.eliminate_joins", "qualname": "eliminate_joins", "kind": "function", "doc": "

Remove unused joins from an expression.

\n\n

This only removes joins when we know that the join condition doesn't produce duplicate rows.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT x.a FROM x LEFT JOIN (SELECT DISTINCT y.b FROM y) AS y ON x.b = y.b"\n>>> expression = sqlglot.parse_one(sql)\n>>> eliminate_joins(expression).sql()\n'SELECT x.a FROM x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_joins.join_condition": {"fullname": "sqlglot.optimizer.eliminate_joins.join_condition", "modulename": "sqlglot.optimizer.eliminate_joins", "qualname": "join_condition", "kind": "function", "doc": "

Extract the join condition from a join expression.

\n\n
Arguments:
\n\n
    \n
  • join (exp.Join)
  • \n
\n\n
Returns:
\n\n
\n

tuple[list[str], list[str], exp.Expression]:\n Tuple of (source key, join key, remaining predicate)

\n
\n", "signature": "(join):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_subqueries": {"fullname": "sqlglot.optimizer.eliminate_subqueries", "modulename": "sqlglot.optimizer.eliminate_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_subqueries.eliminate_subqueries": {"fullname": "sqlglot.optimizer.eliminate_subqueries.eliminate_subqueries", "modulename": "sqlglot.optimizer.eliminate_subqueries", "qualname": "eliminate_subqueries", "kind": "function", "doc": "

Rewrite derived tables as CTES, deduplicating if possible.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT * FROM x) AS y")\n>>> eliminate_subqueries(expression).sql()\n'WITH y AS (SELECT * FROM x) SELECT a FROM y AS y'\n
\n
\n
\n\n
This also deduplicates common subqueries:
\n\n
\n
\n
>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT * FROM x) AS y JOIN (SELECT * FROM x) AS z")\n>>> eliminate_subqueries(expression).sql()\n'WITH y AS (SELECT * FROM x) SELECT a FROM y AS y JOIN y AS z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.expand_laterals": {"fullname": "sqlglot.optimizer.expand_laterals", "modulename": "sqlglot.optimizer.expand_laterals", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.expand_laterals.expand_laterals": {"fullname": "sqlglot.optimizer.expand_laterals.expand_laterals", "modulename": "sqlglot.optimizer.expand_laterals", "qualname": "expand_laterals", "kind": "function", "doc": "

Expand lateral column alias references.

\n\n

This assumes qualify_columns as already run.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT x.a + 1 AS b, b + 1 AS c FROM x"\n>>> expression = sqlglot.parse_one(sql)\n>>> expand_laterals(expression).sql()\n'SELECT x.a + 1 AS b, x.a + 1 + 1 AS c FROM x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

optimized expression

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.expand_multi_table_selects": {"fullname": "sqlglot.optimizer.expand_multi_table_selects", "modulename": "sqlglot.optimizer.expand_multi_table_selects", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.expand_multi_table_selects.expand_multi_table_selects": {"fullname": "sqlglot.optimizer.expand_multi_table_selects.expand_multi_table_selects", "modulename": "sqlglot.optimizer.expand_multi_table_selects", "qualname": "expand_multi_table_selects", "kind": "function", "doc": "

Replace multiple FROM expressions with JOINs.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> expand_multi_table_selects(parse_one("SELECT * FROM x, y")).sql()\n'SELECT * FROM x CROSS JOIN y'\n
\n
\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.isolate_table_selects": {"fullname": "sqlglot.optimizer.isolate_table_selects", "modulename": "sqlglot.optimizer.isolate_table_selects", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.isolate_table_selects.isolate_table_selects": {"fullname": "sqlglot.optimizer.isolate_table_selects.isolate_table_selects", "modulename": "sqlglot.optimizer.isolate_table_selects", "qualname": "isolate_table_selects", "kind": "function", "doc": "

\n", "signature": "(expression, schema=None):", "funcdef": "def"}, "sqlglot.optimizer.lower_identities": {"fullname": "sqlglot.optimizer.lower_identities", "modulename": "sqlglot.optimizer.lower_identities", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.lower_identities.lower_identities": {"fullname": "sqlglot.optimizer.lower_identities.lower_identities", "modulename": "sqlglot.optimizer.lower_identities", "qualname": "lower_identities", "kind": "function", "doc": "

Convert all unquoted identifiers to lower case.

\n\n

Assuming the schema is all lower case, this essentially makes identifiers case-insensitive.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one('SELECT Bar.A AS A FROM "Foo".Bar')\n>>> lower_identities(expression).sql()\n'SELECT bar.a AS A FROM "Foo".bar'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to quote
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: quoted expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries": {"fullname": "sqlglot.optimizer.merge_subqueries", "modulename": "sqlglot.optimizer.merge_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.merge_subqueries.merge_subqueries": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_subqueries", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_subqueries", "kind": "function", "doc": "

Rewrite sqlglot AST to merge derived tables into the outer query.

\n\n

This also merges CTEs if they are selected from only once.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT x.a FROM x) JOIN y")\n>>> merge_subqueries(expression).sql()\n'SELECT x.a FROM x JOIN y'\n
\n
\n
\n\n

If leave_tables_isolated is True, this will not merge inner queries into outer\nqueries if it would result in multiple table selects in a single query:

\n\n
\n
\n
\n

expression = sqlglot.parse_one(\"SELECT a FROM (SELECT x.a FROM x) JOIN y\")\n merge_subqueries(expression, leave_tables_isolated=True).sql()\n 'SELECT a FROM (SELECT x.a FROM x) JOIN y'

\n
\n
\n
\n\n

Inspired by https://dev.mysql.com/doc/refman/8.0/en/derived-table-optimization.html

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
  • leave_tables_isolated (bool):
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries.merge_ctes": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_ctes", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_ctes", "kind": "function", "doc": "

\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries.merge_derived_tables": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_derived_tables", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_derived_tables", "kind": "function", "doc": "

\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize": {"fullname": "sqlglot.optimizer.normalize", "modulename": "sqlglot.optimizer.normalize", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.normalize.normalize": {"fullname": "sqlglot.optimizer.normalize.normalize", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalize", "kind": "function", "doc": "

Rewrite sqlglot AST into conjunctive normal form.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("(x AND y) OR z")\n>>> normalize(expression).sql()\n'(x OR z) AND (y OR z)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to normalize
  • \n
  • dnf (bool): rewrite in disjunctive normal form instead
  • \n
  • max_distance (int): the maximal estimated distance from cnf to attempt conversion
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: normalized expression

\n
\n", "signature": "(expression, dnf=False, max_distance=128):", "funcdef": "def"}, "sqlglot.optimizer.normalize.normalized": {"fullname": "sqlglot.optimizer.normalize.normalized", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalized", "kind": "function", "doc": "

\n", "signature": "(expression, dnf=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize.normalization_distance": {"fullname": "sqlglot.optimizer.normalize.normalization_distance", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalization_distance", "kind": "function", "doc": "

The difference in the number of predicates between the current expression and the normalized form.

\n\n

This is used as an estimate of the cost of the conversion which is exponential in complexity.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("(a AND b) OR (c AND d)")\n>>> normalization_distance(expression)\n4\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to compute distance
  • \n
  • dnf (bool): compute to dnf distance instead
  • \n
\n\n
Returns:
\n\n
\n

int: difference

\n
\n", "signature": "(expression, dnf=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize.distributive_law": {"fullname": "sqlglot.optimizer.normalize.distributive_law", "modulename": "sqlglot.optimizer.normalize", "qualname": "distributive_law", "kind": "function", "doc": "

x OR (y AND z) -> (x OR y) AND (x OR z)\n(x AND y) OR (y AND z) -> (x OR y) AND (x OR z) AND (y OR y) AND (y OR z)

\n", "signature": "(expression, dnf, max_distance):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins": {"fullname": "sqlglot.optimizer.optimize_joins", "modulename": "sqlglot.optimizer.optimize_joins", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.optimize_joins.optimize_joins": {"fullname": "sqlglot.optimizer.optimize_joins.optimize_joins", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "optimize_joins", "kind": "function", "doc": "

Removes cross joins if possible and reorder joins based on predicate dependencies.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> optimize_joins(parse_one("SELECT * FROM x CROSS JOIN y JOIN z ON x.a = z.a AND y.a = z.a")).sql()\n'SELECT * FROM x JOIN z ON x.a = z.a AND TRUE JOIN y ON y.a = z.a'\n
\n
\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.reorder_joins": {"fullname": "sqlglot.optimizer.optimize_joins.reorder_joins", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "reorder_joins", "kind": "function", "doc": "

Reorder joins by topological sort order based on predicate references.

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.normalize": {"fullname": "sqlglot.optimizer.optimize_joins.normalize", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "normalize", "kind": "function", "doc": "

Remove INNER and OUTER from joins as they are optional.

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.other_table_names": {"fullname": "sqlglot.optimizer.optimize_joins.other_table_names", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "other_table_names", "kind": "function", "doc": "

\n", "signature": "(join, exclude):", "funcdef": "def"}, "sqlglot.optimizer.optimizer": {"fullname": "sqlglot.optimizer.optimizer", "modulename": "sqlglot.optimizer.optimizer", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.optimizer.optimize": {"fullname": "sqlglot.optimizer.optimizer.optimize", "modulename": "sqlglot.optimizer.optimizer", "qualname": "optimize", "kind": "function", "doc": "

Rewrite a sqlglot AST into an optimized form.

\n\n
Arguments:
\n\n
    \n
  • expression: expression to optimize
  • \n
  • schema: database schema.\nThis can either be an instance of sqlglot.optimizer.Schema or a mapping in one of\nthe following forms:\n 1. {table: {col: type}}\n 2. {db: {table: {col: type}}}\n 3. {catalog: {db: {table: {col: type}}}}\nIf no schema is provided then the default schema defined at sqlgot.schema will be used
  • \n
  • db: specify the default database, as might be set by a USE DATABASE db statement
  • \n
  • catalog: specify the default catalog, as might be set by a USE CATALOG c statement
  • \n
  • dialect: The dialect to parse the sql string.
  • \n
  • rules: sequence of optimizer rules to use.\nMany of the rules require tables and columns to be qualified.\nDo not remove qualify_tables or qualify_columns from the sequence of rules unless you know\nwhat you're doing!
  • \n
  • *kwargs: If a rule has a keyword argument with a same name in *kwargs, it will be passed in.
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(\texpression: str | sqlglot.expressions.Expression,\tschema: Union[dict, sqlglot.schema.Schema, NoneType] = None,\tdb: Optional[str] = None,\tcatalog: Optional[str] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\trules: Sequence[Callable] = (<function lower_identities at 0x7fc261089990>, <function qualify_tables at 0x7fc261078040>, <function isolate_table_selects at 0x7fc261089900>, <function qualify_columns at 0x7fc26108aef0>, <function expand_laterals at 0x7fc2610896c0>, <function pushdown_projections at 0x7fc26108b9a0>, <function validate_qualify_columns at 0x7fc26108af80>, <function normalize at 0x7fc26109b640>, <function unnest_subqueries at 0x7fc261078160>, <function expand_multi_table_selects at 0x7fc261089870>, <function pushdown_predicates at 0x7fc26108aa70>, <function optimize_joins at 0x7fc26108a7a0>, <function eliminate_subqueries at 0x7fc2610892d0>, <function merge_subqueries at 0x7fc261089c60>, <function eliminate_joins at 0x7fc26109b520>, <function eliminate_ctes at 0x7fc26109b400>, <function annotate_types at 0x7fc260ff4310>, <function canonicalize at 0x7fc26109b010>),\t**kwargs):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates": {"fullname": "sqlglot.optimizer.pushdown_predicates", "modulename": "sqlglot.optimizer.pushdown_predicates", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.pushdown_predicates.pushdown_predicates": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_predicates", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_predicates", "kind": "function", "doc": "

Rewrite sqlglot AST to pushdown predicates in FROMS and JOINS

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT * FROM (SELECT * FROM x AS x) AS y WHERE y.a = 1"\n>>> expression = sqlglot.parse_one(sql)\n>>> pushdown_predicates(expression).sql()\n'SELECT * FROM (SELECT * FROM x AS x WHERE y.a = 1) AS y WHERE TRUE'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown", "kind": "function", "doc": "

\n", "signature": "(condition, sources, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown_cnf": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_cnf", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_cnf", "kind": "function", "doc": "

If the predicates are in CNF like form, we can simply replace each block in the parent.

\n", "signature": "(predicates, scope, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown_dnf": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_dnf", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_dnf", "kind": "function", "doc": "

If the predicates are in DNF form, we can only push down conditions that are in all blocks.\nAdditionally, we can't remove predicates from their original form.

\n", "signature": "(predicates, scope, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.nodes_for_predicate": {"fullname": "sqlglot.optimizer.pushdown_predicates.nodes_for_predicate", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "nodes_for_predicate", "kind": "function", "doc": "

\n", "signature": "(predicate, sources, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.replace_aliases": {"fullname": "sqlglot.optimizer.pushdown_predicates.replace_aliases", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "replace_aliases", "kind": "function", "doc": "

\n", "signature": "(source, predicate):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_projections": {"fullname": "sqlglot.optimizer.pushdown_projections", "modulename": "sqlglot.optimizer.pushdown_projections", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.pushdown_projections.DEFAULT_SELECTION": {"fullname": "sqlglot.optimizer.pushdown_projections.DEFAULT_SELECTION", "modulename": "sqlglot.optimizer.pushdown_projections", "qualname": "DEFAULT_SELECTION", "kind": "function", "doc": "

\n", "signature": "():", "funcdef": "def"}, "sqlglot.optimizer.pushdown_projections.pushdown_projections": {"fullname": "sqlglot.optimizer.pushdown_projections.pushdown_projections", "modulename": "sqlglot.optimizer.pushdown_projections", "qualname": "pushdown_projections", "kind": "function", "doc": "

Rewrite sqlglot AST to remove unused columns projections.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT y.a AS a FROM (SELECT x.a AS a, x.b AS b FROM x) AS y"\n>>> expression = sqlglot.parse_one(sql)\n>>> pushdown_projections(expression).sql()\n'SELECT y.a AS a FROM (SELECT x.a AS a FROM x) AS y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
  • remove_unused_selections (bool): remove selects that are unused
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression, schema=None, remove_unused_selections=True):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.qualify_columns.qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns.qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "qualify_columns", "kind": "function", "doc": "

Rewrite sqlglot AST to have fully qualified columns.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> schema = {"tbl": {"col": "INT"}}\n>>> expression = sqlglot.parse_one("SELECT col FROM tbl")\n>>> qualify_columns(expression, schema).sql()\n'SELECT tbl.col AS col FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to qualify
  • \n
  • schema (dict|sqlglot.optimizer.Schema): Database schema
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: qualified expression

\n
\n", "signature": "(expression, schema):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.validate_qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns.validate_qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "validate_qualify_columns", "kind": "function", "doc": "

Raise an OptimizeError if any columns aren't qualified

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.Resolver": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver", "kind": "class", "doc": "

Helper for resolving columns.

\n\n

This is a class so we can lazily load some things and easily share them across functions.

\n"}, "sqlglot.optimizer.qualify_columns.Resolver.__init__": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.__init__", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.__init__", "kind": "function", "doc": "

\n", "signature": "(scope, schema)"}, "sqlglot.optimizer.qualify_columns.Resolver.get_table": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.get_table", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.get_table", "kind": "function", "doc": "

Get the table for a column name.

\n\n
Arguments:
\n\n
    \n
  • column_name: The column name to find the table for.
  • \n
\n\n
Returns:
\n\n
\n

The table name if it can be found/inferred.

\n
\n", "signature": "(self, column_name: str) -> Optional[sqlglot.expressions.Identifier]:", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.Resolver.all_columns": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.all_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.all_columns", "kind": "variable", "doc": "

All available columns of all sources in this scope

\n"}, "sqlglot.optimizer.qualify_columns.Resolver.get_source_columns": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.get_source_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.get_source_columns", "kind": "function", "doc": "

Resolve the source columns for a given source name

\n", "signature": "(self, name, only_visible=False):", "funcdef": "def"}, "sqlglot.optimizer.qualify_tables": {"fullname": "sqlglot.optimizer.qualify_tables", "modulename": "sqlglot.optimizer.qualify_tables", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.qualify_tables.qualify_tables": {"fullname": "sqlglot.optimizer.qualify_tables.qualify_tables", "modulename": "sqlglot.optimizer.qualify_tables", "qualname": "qualify_tables", "kind": "function", "doc": "

Rewrite sqlglot AST to have fully qualified tables.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT 1 FROM tbl")\n>>> qualify_tables(expression, db="db").sql()\n'SELECT 1 FROM db.tbl AS tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to qualify
  • \n
  • db (str): Database name
  • \n
  • catalog (str): Catalog name
  • \n
  • schema: A schema to populate
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: qualified expression

\n
\n", "signature": "(expression, db=None, catalog=None, schema=None):", "funcdef": "def"}, "sqlglot.optimizer.scope": {"fullname": "sqlglot.optimizer.scope", "modulename": "sqlglot.optimizer.scope", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.scope.ScopeType": {"fullname": "sqlglot.optimizer.scope.ScopeType", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType", "kind": "class", "doc": "

An enumeration.

\n", "bases": "enum.Enum"}, "sqlglot.optimizer.scope.ScopeType.ROOT": {"fullname": "sqlglot.optimizer.scope.ScopeType.ROOT", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.ROOT", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.ROOT: 1>"}, "sqlglot.optimizer.scope.ScopeType.SUBQUERY": {"fullname": "sqlglot.optimizer.scope.ScopeType.SUBQUERY", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.SUBQUERY", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.SUBQUERY: 2>"}, "sqlglot.optimizer.scope.ScopeType.DERIVED_TABLE": {"fullname": "sqlglot.optimizer.scope.ScopeType.DERIVED_TABLE", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.DERIVED_TABLE", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.DERIVED_TABLE: 3>"}, "sqlglot.optimizer.scope.ScopeType.CTE": {"fullname": "sqlglot.optimizer.scope.ScopeType.CTE", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.CTE", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.CTE: 4>"}, "sqlglot.optimizer.scope.ScopeType.UNION": {"fullname": "sqlglot.optimizer.scope.ScopeType.UNION", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.UNION", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.UNION: 5>"}, "sqlglot.optimizer.scope.ScopeType.UDTF": {"fullname": "sqlglot.optimizer.scope.ScopeType.UDTF", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.UDTF", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.UDTF: 6>"}, "sqlglot.optimizer.scope.Scope": {"fullname": "sqlglot.optimizer.scope.Scope", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope", "kind": "class", "doc": "

Selection scope.

\n\n
Attributes:
\n\n
    \n
  • expression (exp.Select|exp.Union): Root expression of this scope
  • \n
  • sources (dict[str, exp.Table|Scope]): Mapping of source name to either\na Table expression or another Scope instance. For example:\n SELECT * FROM x {\"x\": Table(this=\"x\")}\n SELECT * FROM x AS y {\"y\": Table(this=\"x\")}\n SELECT * FROM (SELECT ...) AS y {\"y\": Scope(...)}
  • \n
  • lateral_sources (dict[str, exp.Table|Scope]): Sources from laterals\nFor example:\n SELECT c FROM x LATERAL VIEW EXPLODE (a) AS c;\nThe LATERAL VIEW EXPLODE gets x as a source.
  • \n
  • outer_column_list (list[str]): If this is a derived table or CTE, and the outer query\ndefines a column list of it's alias of this scope, this is that list of columns.\nFor example:\n SELECT * FROM (SELECT ...) AS y(col1, col2)\nThe inner query would have [\"col1\", \"col2\"] for its outer_column_list
  • \n
  • parent (Scope): Parent scope
  • \n
  • scope_type (ScopeType): Type of this scope, relative to it's parent
  • \n
  • subquery_scopes (list[Scope]): List of all child scopes for subqueries
  • \n
  • cte_scopes (list[Scope]): List of all child scopes for CTEs
  • \n
  • derived_table_scopes (list[Scope]): List of all child scopes for derived_tables
  • \n
  • udtf_scopes (list[Scope]): List of all child scopes for user defined tabular functions
  • \n
  • table_scopes (list[Scope]): derived_table_scopes + udtf_scopes, in the order that they're defined
  • \n
  • union_scopes (list[Scope, Scope]): If this Scope is for a Union expression, this will be\na list of the left and right child scopes.
  • \n
\n"}, "sqlglot.optimizer.scope.Scope.__init__": {"fullname": "sqlglot.optimizer.scope.Scope.__init__", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.__init__", "kind": "function", "doc": "

\n", "signature": "(\texpression,\tsources=None,\touter_column_list=None,\tparent=None,\tscope_type=<ScopeType.ROOT: 1>,\tlateral_sources=None)"}, "sqlglot.optimizer.scope.Scope.clear_cache": {"fullname": "sqlglot.optimizer.scope.Scope.clear_cache", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.clear_cache", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.branch": {"fullname": "sqlglot.optimizer.scope.Scope.branch", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.branch", "kind": "function", "doc": "

Branch from the current scope to a new, inner scope

\n", "signature": "(self, expression, scope_type, chain_sources=None, **kwargs):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.walk": {"fullname": "sqlglot.optimizer.scope.Scope.walk", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.walk", "kind": "function", "doc": "

\n", "signature": "(self, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.find": {"fullname": "sqlglot.optimizer.scope.Scope.find", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.find", "kind": "function", "doc": "

Returns the first node in this scope which matches at least one of the specified types.

\n\n

This does NOT traverse into subscopes.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
  • bfs (bool): True to use breadth-first search, False to use depth-first.
  • \n
\n\n
Returns:
\n\n
\n

exp.Expression: the node which matches the criteria or None if no node matching\n the criteria was found.

\n
\n", "signature": "(self, *expression_types, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.find_all": {"fullname": "sqlglot.optimizer.scope.Scope.find_all", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.find_all", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this scope and only yields those that\nmatch at least one of the specified expression types.

\n\n

This does NOT traverse into subscopes.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
  • bfs (bool): True to use breadth-first search, False to use depth-first.
  • \n
\n\n
Yields:
\n\n
\n

exp.Expression: nodes

\n
\n", "signature": "(self, *expression_types, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.replace": {"fullname": "sqlglot.optimizer.scope.Scope.replace", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.replace", "kind": "function", "doc": "

Replace old with new.

\n\n

This can be used instead of exp.Expression.replace to ensure the Scope is kept up-to-date.

\n\n
Arguments:
\n\n
    \n
  • old (exp.Expression): old node
  • \n
  • new (exp.Expression): new node
  • \n
\n", "signature": "(self, old, new):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.tables": {"fullname": "sqlglot.optimizer.scope.Scope.tables", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.tables", "kind": "variable", "doc": "

List of tables in this scope.

\n\n
Returns:
\n\n
\n

list[exp.Table]: tables

\n
\n"}, "sqlglot.optimizer.scope.Scope.ctes": {"fullname": "sqlglot.optimizer.scope.Scope.ctes", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.ctes", "kind": "variable", "doc": "

List of CTEs in this scope.

\n\n
Returns:
\n\n
\n

list[exp.CTE]: ctes

\n
\n"}, "sqlglot.optimizer.scope.Scope.derived_tables": {"fullname": "sqlglot.optimizer.scope.Scope.derived_tables", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.derived_tables", "kind": "variable", "doc": "

List of derived tables in this scope.

\n\n
For example:
\n\n
\n

SELECT * FROM (SELECT ...) <- that's a derived table

\n
\n\n
Returns:
\n\n
\n

list[exp.Subquery]: derived tables

\n
\n"}, "sqlglot.optimizer.scope.Scope.udtfs": {"fullname": "sqlglot.optimizer.scope.Scope.udtfs", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.udtfs", "kind": "variable", "doc": "

List of \"User Defined Tabular Functions\" in this scope.

\n\n
Returns:
\n\n
\n

list[exp.UDTF]: UDTFs

\n
\n"}, "sqlglot.optimizer.scope.Scope.subqueries": {"fullname": "sqlglot.optimizer.scope.Scope.subqueries", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.subqueries", "kind": "variable", "doc": "

List of subqueries in this scope.

\n\n
For example:
\n\n
\n

SELECT * FROM x WHERE a IN (SELECT ...) <- that's a subquery

\n
\n\n
Returns:
\n\n
\n

list[exp.Subqueryable]: subqueries

\n
\n"}, "sqlglot.optimizer.scope.Scope.columns": {"fullname": "sqlglot.optimizer.scope.Scope.columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.columns", "kind": "variable", "doc": "

List of columns in this scope.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances in this scope, plus any\n Columns that reference this scope from correlated subqueries.

\n
\n"}, "sqlglot.optimizer.scope.Scope.selected_sources": {"fullname": "sqlglot.optimizer.scope.Scope.selected_sources", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.selected_sources", "kind": "variable", "doc": "

Mapping of nodes and sources that are actually selected from in this scope.

\n\n

That is, all tables in a schema are selectable at any point. But a\ntable only becomes a selected source if it's included in a FROM or JOIN clause.

\n\n
Returns:
\n\n
\n

dict[str, (exp.Table|exp.Select, exp.Table|Scope)]: selected sources and nodes

\n
\n"}, "sqlglot.optimizer.scope.Scope.cte_sources": {"fullname": "sqlglot.optimizer.scope.Scope.cte_sources", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.cte_sources", "kind": "variable", "doc": "

Sources that are CTEs.

\n\n
Returns:
\n\n
\n

dict[str, Scope]: Mapping of source alias to Scope

\n
\n"}, "sqlglot.optimizer.scope.Scope.selects": {"fullname": "sqlglot.optimizer.scope.Scope.selects", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.selects", "kind": "variable", "doc": "

Select expressions of this scope.

\n\n

For example, for the following expression:\n SELECT 1 as a, 2 as b FROM x

\n\n

The outputs are the \"1 as a\" and \"2 as b\" expressions.

\n\n
Returns:
\n\n
\n

list[exp.Expression]: expressions

\n
\n"}, "sqlglot.optimizer.scope.Scope.external_columns": {"fullname": "sqlglot.optimizer.scope.Scope.external_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.external_columns", "kind": "variable", "doc": "

Columns that appear to reference sources in outer scopes.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances that don't reference\n sources in the current scope.

\n
\n"}, "sqlglot.optimizer.scope.Scope.unqualified_columns": {"fullname": "sqlglot.optimizer.scope.Scope.unqualified_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.unqualified_columns", "kind": "variable", "doc": "

Unqualified columns in the current scope.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Unqualified columns

\n
\n"}, "sqlglot.optimizer.scope.Scope.join_hints": {"fullname": "sqlglot.optimizer.scope.Scope.join_hints", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.join_hints", "kind": "variable", "doc": "

Hints that exist in the scope that reference tables

\n\n
Returns:
\n\n
\n

list[exp.JoinHint]: Join hints that are referenced within the scope

\n
\n"}, "sqlglot.optimizer.scope.Scope.source_columns": {"fullname": "sqlglot.optimizer.scope.Scope.source_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.source_columns", "kind": "function", "doc": "

Get all columns in the current scope for a particular source.

\n\n
Arguments:
\n\n
    \n
  • source_name (str): Name of the source
  • \n
\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances that reference source_name

\n
\n", "signature": "(self, source_name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.is_subquery": {"fullname": "sqlglot.optimizer.scope.Scope.is_subquery", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_subquery", "kind": "variable", "doc": "

Determine if this scope is a subquery

\n"}, "sqlglot.optimizer.scope.Scope.is_derived_table": {"fullname": "sqlglot.optimizer.scope.Scope.is_derived_table", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_derived_table", "kind": "variable", "doc": "

Determine if this scope is a derived table

\n"}, "sqlglot.optimizer.scope.Scope.is_union": {"fullname": "sqlglot.optimizer.scope.Scope.is_union", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_union", "kind": "variable", "doc": "

Determine if this scope is a union

\n"}, "sqlglot.optimizer.scope.Scope.is_cte": {"fullname": "sqlglot.optimizer.scope.Scope.is_cte", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_cte", "kind": "variable", "doc": "

Determine if this scope is a common table expression

\n"}, "sqlglot.optimizer.scope.Scope.is_root": {"fullname": "sqlglot.optimizer.scope.Scope.is_root", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_root", "kind": "variable", "doc": "

Determine if this is the root scope

\n"}, "sqlglot.optimizer.scope.Scope.is_udtf": {"fullname": "sqlglot.optimizer.scope.Scope.is_udtf", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_udtf", "kind": "variable", "doc": "

Determine if this scope is a UDTF (User Defined Table Function)

\n"}, "sqlglot.optimizer.scope.Scope.is_correlated_subquery": {"fullname": "sqlglot.optimizer.scope.Scope.is_correlated_subquery", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_correlated_subquery", "kind": "variable", "doc": "

Determine if this scope is a correlated subquery

\n"}, "sqlglot.optimizer.scope.Scope.rename_source": {"fullname": "sqlglot.optimizer.scope.Scope.rename_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.rename_source", "kind": "function", "doc": "

Rename a source in this scope

\n", "signature": "(self, old_name, new_name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.add_source": {"fullname": "sqlglot.optimizer.scope.Scope.add_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.add_source", "kind": "function", "doc": "

Add a source to this scope

\n", "signature": "(self, name, source):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.remove_source": {"fullname": "sqlglot.optimizer.scope.Scope.remove_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.remove_source", "kind": "function", "doc": "

Remove a source from this scope

\n", "signature": "(self, name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.traverse": {"fullname": "sqlglot.optimizer.scope.Scope.traverse", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.traverse", "kind": "function", "doc": "

Traverse the scope tree from this node.

\n\n
Yields:
\n\n
\n

Scope: scope instances in depth-first-search post-order

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.ref_count": {"fullname": "sqlglot.optimizer.scope.Scope.ref_count", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.ref_count", "kind": "function", "doc": "

Count the number of times each scope in this tree is referenced.

\n\n
Returns:
\n\n
\n

dict[int, int]: Mapping of Scope instance ID to reference count

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.traverse_scope": {"fullname": "sqlglot.optimizer.scope.traverse_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "traverse_scope", "kind": "function", "doc": "

Traverse an expression by it's \"scopes\".

\n\n

\"Scope\" represents the current context of a Select statement.

\n\n

This is helpful for optimizing queries, where we need more information than\nthe expression tree itself. For example, we might care about the source\nnames within a subquery. Returns a list because a generator could result in\nincomplete properties which is confusing.

\n\n
Examples:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT a FROM x) AS y")\n>>> scopes = traverse_scope(expression)\n>>> scopes[0].expression.sql(), list(scopes[0].sources)\n('SELECT a FROM x', ['x'])\n>>> scopes[1].expression.sql(), list(scopes[1].sources)\n('SELECT a FROM (SELECT a FROM x) AS y', ['y'])\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression): expression to traverse
  • \n
\n\n
Returns:
\n\n
\n

list[Scope]: scope instances

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.scope.build_scope": {"fullname": "sqlglot.optimizer.scope.build_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "build_scope", "kind": "function", "doc": "

Build a scope tree.

\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression): expression to build the scope tree for
  • \n
\n\n
Returns:
\n\n
\n

Scope: root scope

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.scope.walk_in_scope": {"fullname": "sqlglot.optimizer.scope.walk_in_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "walk_in_scope", "kind": "function", "doc": "

Returns a generator object which visits all nodes in the syntrax tree, stopping at\nnodes that start child scopes.

\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression):
  • \n
  • bfs (bool): if set to True the BFS traversal order will be applied,\notherwise the DFS traversal will be used instead.
  • \n
\n\n
Yields:
\n\n
\n

tuple[exp.Expression, Optional[exp.Expression], str]: node, parent, arg key

\n
\n", "signature": "(expression, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify": {"fullname": "sqlglot.optimizer.simplify", "modulename": "sqlglot.optimizer.simplify", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.simplify.simplify": {"fullname": "sqlglot.optimizer.simplify.simplify", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify", "kind": "function", "doc": "

Rewrite sqlglot AST to simplify expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("TRUE AND TRUE")\n>>> simplify(expression).sql()\n'TRUE'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to simplify
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: simplified expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.rewrite_between": {"fullname": "sqlglot.optimizer.simplify.rewrite_between", "modulename": "sqlglot.optimizer.simplify", "qualname": "rewrite_between", "kind": "function", "doc": "

Rewrite x between y and z to x >= y AND x <= z.

\n\n

This is done because comparison simplification is only done on lt/lte/gt/gte.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_not": {"fullname": "sqlglot.optimizer.simplify.simplify_not", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_not", "kind": "function", "doc": "

Demorgan's Law\nNOT (x OR y) -> NOT x AND NOT y\nNOT (x AND y) -> NOT x OR NOT y

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.flatten": {"fullname": "sqlglot.optimizer.simplify.flatten", "modulename": "sqlglot.optimizer.simplify", "qualname": "flatten", "kind": "function", "doc": "

A AND (B AND C) -> A AND B AND C\nA OR (B OR C) -> A OR B OR C

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_connectors": {"fullname": "sqlglot.optimizer.simplify.simplify_connectors", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_connectors", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.remove_compliments": {"fullname": "sqlglot.optimizer.simplify.remove_compliments", "modulename": "sqlglot.optimizer.simplify", "qualname": "remove_compliments", "kind": "function", "doc": "

Removing compliments.

\n\n

A AND NOT A -> FALSE\nA OR NOT A -> TRUE

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.uniq_sort": {"fullname": "sqlglot.optimizer.simplify.uniq_sort", "modulename": "sqlglot.optimizer.simplify", "qualname": "uniq_sort", "kind": "function", "doc": "

Uniq and sort a connector.

\n\n

C AND A AND B AND B -> A AND B AND C

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.absorb_and_eliminate": {"fullname": "sqlglot.optimizer.simplify.absorb_and_eliminate", "modulename": "sqlglot.optimizer.simplify", "qualname": "absorb_and_eliminate", "kind": "function", "doc": "

absorption:\n A AND (A OR B) -> A\n A OR (A AND B) -> A\n A AND (NOT A OR B) -> A AND B\n A OR (NOT A AND B) -> A OR B\nelimination:\n (A AND B) OR (A AND NOT B) -> A\n (A OR B) AND (A OR NOT B) -> A

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_literals": {"fullname": "sqlglot.optimizer.simplify.simplify_literals", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_literals", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_parens": {"fullname": "sqlglot.optimizer.simplify.simplify_parens", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_parens", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.remove_where_true": {"fullname": "sqlglot.optimizer.simplify.remove_where_true", "modulename": "sqlglot.optimizer.simplify", "qualname": "remove_where_true", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.always_true": {"fullname": "sqlglot.optimizer.simplify.always_true", "modulename": "sqlglot.optimizer.simplify", "qualname": "always_true", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.is_complement": {"fullname": "sqlglot.optimizer.simplify.is_complement", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_complement", "kind": "function", "doc": "

\n", "signature": "(a, b):", "funcdef": "def"}, "sqlglot.optimizer.simplify.eval_boolean": {"fullname": "sqlglot.optimizer.simplify.eval_boolean", "modulename": "sqlglot.optimizer.simplify", "qualname": "eval_boolean", "kind": "function", "doc": "

\n", "signature": "(expression, a, b):", "funcdef": "def"}, "sqlglot.optimizer.simplify.extract_date": {"fullname": "sqlglot.optimizer.simplify.extract_date", "modulename": "sqlglot.optimizer.simplify", "qualname": "extract_date", "kind": "function", "doc": "

\n", "signature": "(cast):", "funcdef": "def"}, "sqlglot.optimizer.simplify.extract_interval": {"fullname": "sqlglot.optimizer.simplify.extract_interval", "modulename": "sqlglot.optimizer.simplify", "qualname": "extract_interval", "kind": "function", "doc": "

\n", "signature": "(interval):", "funcdef": "def"}, "sqlglot.optimizer.simplify.date_literal": {"fullname": "sqlglot.optimizer.simplify.date_literal", "modulename": "sqlglot.optimizer.simplify", "qualname": "date_literal", "kind": "function", "doc": "

\n", "signature": "(date):", "funcdef": "def"}, "sqlglot.optimizer.simplify.boolean_literal": {"fullname": "sqlglot.optimizer.simplify.boolean_literal", "modulename": "sqlglot.optimizer.simplify", "qualname": "boolean_literal", "kind": "function", "doc": "

\n", "signature": "(condition):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries": {"fullname": "sqlglot.optimizer.unnest_subqueries", "modulename": "sqlglot.optimizer.unnest_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.unnest_subqueries.unnest_subqueries": {"fullname": "sqlglot.optimizer.unnest_subqueries.unnest_subqueries", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "unnest_subqueries", "kind": "function", "doc": "

Rewrite sqlglot AST to convert some predicates with subqueries into joins.

\n\n

Convert scalar subqueries into cross joins.\nConvert correlated or vectorized subqueries into a group by so it is not a many to many left join.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT * FROM x AS x WHERE (SELECT y.a AS a FROM y AS y WHERE x.a = y.a) = 1 ")\n>>> unnest_subqueries(expression).sql()\n'SELECT * FROM x AS x LEFT JOIN (SELECT y.a AS a FROM y AS y WHERE TRUE GROUP BY y.a) AS _u_0 ON x.a = _u_0.a WHERE _u_0.a = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to unnest
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: unnested expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries.unnest": {"fullname": "sqlglot.optimizer.unnest_subqueries.unnest", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "unnest", "kind": "function", "doc": "

\n", "signature": "(select, parent_select, sequence):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries.decorrelate": {"fullname": "sqlglot.optimizer.unnest_subqueries.decorrelate", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "decorrelate", "kind": "function", "doc": "

\n", "signature": "(select, parent_select, external_columns, sequence):", "funcdef": "def"}, "sqlglot.parser": {"fullname": "sqlglot.parser", "modulename": "sqlglot.parser", "kind": "module", "doc": "

\n"}, "sqlglot.parser.parse_var_map": {"fullname": "sqlglot.parser.parse_var_map", "modulename": "sqlglot.parser", "qualname": "parse_var_map", "kind": "function", "doc": "

\n", "signature": "(args):", "funcdef": "def"}, "sqlglot.parser.Parser": {"fullname": "sqlglot.parser.Parser", "modulename": "sqlglot.parser", "qualname": "Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n"}, "sqlglot.parser.Parser.__init__": {"fullname": "sqlglot.parser.Parser.__init__", "modulename": "sqlglot.parser", "qualname": "Parser.__init__", "kind": "function", "doc": "

\n", "signature": "(\terror_level: Optional[sqlglot.errors.ErrorLevel] = None,\terror_message_context: int = 100,\tindex_offset: int = 0,\tunnest_column_only: bool = False,\talias_post_tablesample: bool = False,\tmax_errors: int = 3,\tnull_ordering: Optional[str] = None)"}, "sqlglot.parser.Parser.reset": {"fullname": "sqlglot.parser.Parser.reset", "modulename": "sqlglot.parser", "qualname": "Parser.reset", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.parser.Parser.parse": {"fullname": "sqlglot.parser.Parser.parse", "modulename": "sqlglot.parser", "qualname": "Parser.parse", "kind": "function", "doc": "

Parses a list of tokens and returns a list of syntax trees, one tree\nper parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • raw_tokens: the list of tokens.
  • \n
  • sql: the original SQL string, used to produce helpful debug messages.
  • \n
\n\n
Returns:
\n\n
\n

The list of syntax trees.

\n
\n", "signature": "(\tself,\traw_tokens: List[sqlglot.tokens.Token],\tsql: Optional[str] = None) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parser.Parser.parse_into": {"fullname": "sqlglot.parser.Parser.parse_into", "modulename": "sqlglot.parser", "qualname": "Parser.parse_into", "kind": "function", "doc": "

Parses a list of tokens into a given Expression type. If a collection of Expression\ntypes is given instead, this method will try to parse the token list into each one\nof them, stopping at the first for which the parsing succeeds.

\n\n
Arguments:
\n\n
    \n
  • expression_types: the expression type(s) to try and parse the token list into.
  • \n
  • raw_tokens: the list of tokens.
  • \n
  • sql: the original SQL string, used to produce helpful debug messages.
  • \n
\n\n
Returns:
\n\n
\n

The target Expression.

\n
\n", "signature": "(\tself,\texpression_types: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]]],\traw_tokens: List[sqlglot.tokens.Token],\tsql: Optional[str] = None) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parser.Parser.check_errors": {"fullname": "sqlglot.parser.Parser.check_errors", "modulename": "sqlglot.parser", "qualname": "Parser.check_errors", "kind": "function", "doc": "

Logs or raises any found errors, depending on the chosen error level setting.

\n", "signature": "(self) -> None:", "funcdef": "def"}, "sqlglot.parser.Parser.raise_error": {"fullname": "sqlglot.parser.Parser.raise_error", "modulename": "sqlglot.parser", "qualname": "Parser.raise_error", "kind": "function", "doc": "

Appends an error in the list of recorded errors or raises it, depending on the chosen\nerror level setting.

\n", "signature": "(self, message: str, token: Optional[sqlglot.tokens.Token] = None) -> None:", "funcdef": "def"}, "sqlglot.parser.Parser.expression": {"fullname": "sqlglot.parser.Parser.expression", "modulename": "sqlglot.parser", "qualname": "Parser.expression", "kind": "function", "doc": "

Creates a new, validated Expression.

\n\n
Arguments:
\n\n
    \n
  • exp_class: the expression class to instantiate.
  • \n
  • comments: an optional list of comments to attach to the expression.
  • \n
  • kwargs: the arguments to set for the expression along with their respective values.
  • \n
\n\n
Returns:
\n\n
\n

The target expression.

\n
\n", "signature": "(\tself,\texp_class: Type[sqlglot.expressions.Expression],\tcomments: Optional[List[str]] = None,\t**kwargs) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.parser.Parser.validate_expression": {"fullname": "sqlglot.parser.Parser.validate_expression", "modulename": "sqlglot.parser", "qualname": "Parser.validate_expression", "kind": "function", "doc": "

Validates an already instantiated expression, making sure that all its mandatory arguments\nare set.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression to validate.
  • \n
  • args: an optional list of items that was used to instantiate the expression, if it's a Func.
  • \n
\n", "signature": "(\tself,\texpression: sqlglot.expressions.Expression,\targs: Optional[List] = None) -> None:", "funcdef": "def"}, "sqlglot.planner": {"fullname": "sqlglot.planner", "modulename": "sqlglot.planner", "kind": "module", "doc": "

\n"}, "sqlglot.planner.Plan": {"fullname": "sqlglot.planner.Plan", "modulename": "sqlglot.planner", "qualname": "Plan", "kind": "class", "doc": "

\n"}, "sqlglot.planner.Plan.__init__": {"fullname": "sqlglot.planner.Plan.__init__", "modulename": "sqlglot.planner", "qualname": "Plan.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.planner.Step": {"fullname": "sqlglot.planner.Step", "modulename": "sqlglot.planner", "qualname": "Step", "kind": "class", "doc": "

\n"}, "sqlglot.planner.Step.from_expression": {"fullname": "sqlglot.planner.Step.from_expression", "modulename": "sqlglot.planner", "qualname": "Step.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Step.add_dependency": {"fullname": "sqlglot.planner.Step.add_dependency", "modulename": "sqlglot.planner", "qualname": "Step.add_dependency", "kind": "function", "doc": "

\n", "signature": "(self, dependency: sqlglot.planner.Step) -> None:", "funcdef": "def"}, "sqlglot.planner.Step.to_s": {"fullname": "sqlglot.planner.Step.to_s", "modulename": "sqlglot.planner", "qualname": "Step.to_s", "kind": "function", "doc": "

\n", "signature": "(self, level: int = 0) -> str:", "funcdef": "def"}, "sqlglot.planner.Scan": {"fullname": "sqlglot.planner.Scan", "modulename": "sqlglot.planner", "qualname": "Scan", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Scan.from_expression": {"fullname": "sqlglot.planner.Scan.from_expression", "modulename": "sqlglot.planner", "qualname": "Scan.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Join": {"fullname": "sqlglot.planner.Join", "modulename": "sqlglot.planner", "qualname": "Join", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Join.from_joins": {"fullname": "sqlglot.planner.Join.from_joins", "modulename": "sqlglot.planner", "qualname": "Join.from_joins", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tjoins: Iterable[sqlglot.expressions.Join],\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Aggregate": {"fullname": "sqlglot.planner.Aggregate", "modulename": "sqlglot.planner", "qualname": "Aggregate", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Sort": {"fullname": "sqlglot.planner.Sort", "modulename": "sqlglot.planner", "qualname": "Sort", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.SetOperation": {"fullname": "sqlglot.planner.SetOperation", "modulename": "sqlglot.planner", "qualname": "SetOperation", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.SetOperation.__init__": {"fullname": "sqlglot.planner.SetOperation.__init__", "modulename": "sqlglot.planner", "qualname": "SetOperation.__init__", "kind": "function", "doc": "

\n", "signature": "(\top: Type[sqlglot.expressions.Expression],\tleft: str | None,\tright: str | None,\tdistinct: bool = False)"}, "sqlglot.planner.SetOperation.from_expression": {"fullname": "sqlglot.planner.SetOperation.from_expression", "modulename": "sqlglot.planner", "qualname": "SetOperation.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.schema.Schema": {"fullname": "sqlglot.schema.Schema", "modulename": "sqlglot.schema", "qualname": "Schema", "kind": "class", "doc": "

Abstract base class for database schemas

\n", "bases": "abc.ABC"}, "sqlglot.schema.Schema.add_table": {"fullname": "sqlglot.schema.Schema.add_table", "modulename": "sqlglot.schema", "qualname": "Schema.add_table", "kind": "function", "doc": "

Register or update a table. Some implementing classes may require column information to also be provided.

\n\n
Arguments:
\n\n
    \n
  • table: table expression instance or string representing the table.
  • \n
  • column_mapping: a column mapping that describes the structure of the table.
  • \n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn_mapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType] = None) -> None:", "funcdef": "def"}, "sqlglot.schema.Schema.column_names": {"fullname": "sqlglot.schema.Schema.column_names", "modulename": "sqlglot.schema", "qualname": "Schema.column_names", "kind": "function", "doc": "

Get the column names for a table.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance.
  • \n
  • only_visible: whether to include invisible columns.
  • \n
\n\n
Returns:
\n\n
\n

The list of column names.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tonly_visible: bool = False) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.Schema.get_column_type": {"fullname": "sqlglot.schema.Schema.get_column_type", "modulename": "sqlglot.schema", "qualname": "Schema.get_column_type", "kind": "function", "doc": "

Get the sqlglot.exp.DataType type of a column in the schema.

\n\n
Arguments:
\n\n
    \n
  • table: the source table.
  • \n
  • column: the target column.
  • \n
\n\n
Returns:
\n\n
\n

The resulting column type.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn: sqlglot.expressions.Column) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.schema.Schema.supported_table_args": {"fullname": "sqlglot.schema.Schema.supported_table_args", "modulename": "sqlglot.schema", "qualname": "Schema.supported_table_args", "kind": "variable", "doc": "

Table arguments this schema support, e.g. (\"this\", \"db\", \"catalog\")

\n", "annotation": ": Tuple[str, ...]"}, "sqlglot.schema.AbstractMappingSchema": {"fullname": "sqlglot.schema.AbstractMappingSchema", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema", "kind": "class", "doc": "

Abstract base class for generic types.

\n\n

A generic type is typically declared by inheriting from\nthis class parameterized with one or more type variables.\nFor example, a generic mapping type might be defined as::

\n\n

class Mapping(Generic[KT, VT]):\n def __getitem__(self, key: KT) -> VT:\n ...\n # Etc.

\n\n

This class can then be used as follows::

\n\n

def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT:\n try:\n return mapping[key]\n except KeyError:\n return default

\n", "bases": "typing.Generic[~T]"}, "sqlglot.schema.AbstractMappingSchema.__init__": {"fullname": "sqlglot.schema.AbstractMappingSchema.__init__", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.__init__", "kind": "function", "doc": "

\n", "signature": "(mapping: dict | None = None)"}, "sqlglot.schema.AbstractMappingSchema.table_parts": {"fullname": "sqlglot.schema.AbstractMappingSchema.table_parts", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.table_parts", "kind": "function", "doc": "

\n", "signature": "(self, table: sqlglot.expressions.Table) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.AbstractMappingSchema.find": {"fullname": "sqlglot.schema.AbstractMappingSchema.find", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.find", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table,\ttrie: Optional[Dict] = None,\traise_on_missing: bool = True) -> Optional[~T]:", "funcdef": "def"}, "sqlglot.schema.MappingSchema": {"fullname": "sqlglot.schema.MappingSchema", "modulename": "sqlglot.schema", "qualname": "MappingSchema", "kind": "class", "doc": "

Schema based on a nested mapping.

\n\n
Arguments:
\n\n
    \n
  • schema (dict): Mapping in one of the following forms:\n
      \n
    1. {table: {col: type}}
    2. \n
    3. {db: {table: {col: type}}}
    4. \n
    5. {catalog: {db: {table: {col: type}}}}
    6. \n
    7. None - Tables will be added later
    8. \n
  • \n
  • visible (dict): Optional mapping of which columns in the schema are visible. If not provided, all columns\nare assumed to be visible. The nesting should mirror that of the schema:\n
      \n
    1. {table: set(cols)}}
    2. \n
    3. {db: {table: set(cols)}}}
    4. \n
    5. {catalog: {db: {table: set(*cols)}}}}
    6. \n
  • \n
  • dialect (str): The dialect to be used for custom type mappings.
  • \n
\n", "bases": "sqlglot.schema.AbstractMappingSchema[typing.Dict[str, str]], Schema"}, "sqlglot.schema.MappingSchema.__init__": {"fullname": "sqlglot.schema.MappingSchema.__init__", "modulename": "sqlglot.schema", "qualname": "MappingSchema.__init__", "kind": "function", "doc": "

\n", "signature": "(\tschema: Optional[Dict] = None,\tvisible: Optional[Dict] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None)"}, "sqlglot.schema.MappingSchema.from_mapping_schema": {"fullname": "sqlglot.schema.MappingSchema.from_mapping_schema", "modulename": "sqlglot.schema", "qualname": "MappingSchema.from_mapping_schema", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tmapping_schema: sqlglot.schema.MappingSchema) -> sqlglot.schema.MappingSchema:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.copy": {"fullname": "sqlglot.schema.MappingSchema.copy", "modulename": "sqlglot.schema", "qualname": "MappingSchema.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.schema.MappingSchema:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.add_table": {"fullname": "sqlglot.schema.MappingSchema.add_table", "modulename": "sqlglot.schema", "qualname": "MappingSchema.add_table", "kind": "function", "doc": "

Register or update a table. Updates are only performed if a new column mapping is provided.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance or string representing the table.
  • \n
  • column_mapping: a column mapping that describes the structure of the table.
  • \n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn_mapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType] = None) -> None:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.column_names": {"fullname": "sqlglot.schema.MappingSchema.column_names", "modulename": "sqlglot.schema", "qualname": "MappingSchema.column_names", "kind": "function", "doc": "

Get the column names for a table.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance.
  • \n
  • only_visible: whether to include invisible columns.
  • \n
\n\n
Returns:
\n\n
\n

The list of column names.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tonly_visible: bool = False) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.get_column_type": {"fullname": "sqlglot.schema.MappingSchema.get_column_type", "modulename": "sqlglot.schema", "qualname": "MappingSchema.get_column_type", "kind": "function", "doc": "

Get the sqlglot.exp.DataType type of a column in the schema.

\n\n
Arguments:
\n\n
    \n
  • table: the source table.
  • \n
  • column: the target column.
  • \n
\n\n
Returns:
\n\n
\n

The resulting column type.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn: sqlglot.expressions.Column | str) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.schema.ensure_schema": {"fullname": "sqlglot.schema.ensure_schema", "modulename": "sqlglot.schema", "qualname": "ensure_schema", "kind": "function", "doc": "

\n", "signature": "(schema: Any) -> sqlglot.schema.Schema:", "funcdef": "def"}, "sqlglot.schema.ensure_column_mapping": {"fullname": "sqlglot.schema.ensure_column_mapping", "modulename": "sqlglot.schema", "qualname": "ensure_column_mapping", "kind": "function", "doc": "

\n", "signature": "(\tmapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType]):", "funcdef": "def"}, "sqlglot.schema.flatten_schema": {"fullname": "sqlglot.schema.flatten_schema", "modulename": "sqlglot.schema", "qualname": "flatten_schema", "kind": "function", "doc": "

\n", "signature": "(\tschema: Dict,\tdepth: int,\tkeys: Optional[List[str]] = None) -> List[List[str]]:", "funcdef": "def"}, "sqlglot.serde": {"fullname": "sqlglot.serde", "modulename": "sqlglot.serde", "kind": "module", "doc": "

\n"}, "sqlglot.serde.dump": {"fullname": "sqlglot.serde.dump", "modulename": "sqlglot.serde", "qualname": "dump", "kind": "function", "doc": "

Recursively dump an AST into a JSON-serializable dict.

\n", "signature": "(\tnode: Union[List[ForwardRef('Node')], sqlglot.expressions.DataType.Type, sqlglot.expressions.Expression, dict, list, str, float, int, bool]) -> Union[dict, list, str, float, int, bool]:", "funcdef": "def"}, "sqlglot.serde.load": {"fullname": "sqlglot.serde.load", "modulename": "sqlglot.serde", "qualname": "load", "kind": "function", "doc": "

Recursively load a dict (as returned by dump) into an AST.

\n", "signature": "(\tobj: Union[dict, list, str, float, int, bool]) -> Union[List[ForwardRef('Node')], sqlglot.expressions.DataType.Type, sqlglot.expressions.Expression, dict, list, str, float, int, bool]:", "funcdef": "def"}, "sqlglot.time": {"fullname": "sqlglot.time", "modulename": "sqlglot.time", "kind": "module", "doc": "

\n"}, "sqlglot.time.format_time": {"fullname": "sqlglot.time.format_time", "modulename": "sqlglot.time", "qualname": "format_time", "kind": "function", "doc": "

Converts a time string given a mapping.

\n\n
Examples:
\n\n
\n
\n
>>> format_time("%Y", {"%Y": "YYYY"})\n'YYYY'\n
\n
\n \n

Args:\n mapping: dictionary of time format to target time format.\n trie: optional trie, can be passed in for performance.

\n \n

Returns:\n The converted time string.

\n
\n", "signature": "(\tstring: str,\tmapping: Dict[str, str],\ttrie: Optional[Dict] = None) -> Optional[str]:", "funcdef": "def"}, "sqlglot.tokens": {"fullname": "sqlglot.tokens", "modulename": "sqlglot.tokens", "kind": "module", "doc": "

\n"}, "sqlglot.tokens.TokenType": {"fullname": "sqlglot.tokens.TokenType", "modulename": "sqlglot.tokens", "qualname": "TokenType", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.tokens.TokenType.L_PAREN": {"fullname": "sqlglot.tokens.TokenType.L_PAREN", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_PAREN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_PAREN: 'L_PAREN'>"}, "sqlglot.tokens.TokenType.R_PAREN": {"fullname": "sqlglot.tokens.TokenType.R_PAREN", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_PAREN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_PAREN: 'R_PAREN'>"}, "sqlglot.tokens.TokenType.L_BRACKET": {"fullname": "sqlglot.tokens.TokenType.L_BRACKET", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_BRACKET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_BRACKET: 'L_BRACKET'>"}, "sqlglot.tokens.TokenType.R_BRACKET": {"fullname": "sqlglot.tokens.TokenType.R_BRACKET", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_BRACKET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_BRACKET: 'R_BRACKET'>"}, "sqlglot.tokens.TokenType.L_BRACE": {"fullname": "sqlglot.tokens.TokenType.L_BRACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_BRACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_BRACE: 'L_BRACE'>"}, "sqlglot.tokens.TokenType.R_BRACE": {"fullname": "sqlglot.tokens.TokenType.R_BRACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_BRACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_BRACE: 'R_BRACE'>"}, "sqlglot.tokens.TokenType.COMMA": {"fullname": "sqlglot.tokens.TokenType.COMMA", "modulename": "sqlglot.tokens", "qualname": "TokenType.COMMA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COMMA: 'COMMA'>"}, "sqlglot.tokens.TokenType.DOT": {"fullname": "sqlglot.tokens.TokenType.DOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.DOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DOT: 'DOT'>"}, "sqlglot.tokens.TokenType.DASH": {"fullname": "sqlglot.tokens.TokenType.DASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.DASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DASH: 'DASH'>"}, "sqlglot.tokens.TokenType.PLUS": {"fullname": "sqlglot.tokens.TokenType.PLUS", "modulename": "sqlglot.tokens", "qualname": "TokenType.PLUS", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PLUS: 'PLUS'>"}, "sqlglot.tokens.TokenType.COLON": {"fullname": "sqlglot.tokens.TokenType.COLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.COLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COLON: 'COLON'>"}, "sqlglot.tokens.TokenType.DCOLON": {"fullname": "sqlglot.tokens.TokenType.DCOLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.DCOLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DCOLON: 'DCOLON'>"}, "sqlglot.tokens.TokenType.SEMICOLON": {"fullname": "sqlglot.tokens.TokenType.SEMICOLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.SEMICOLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SEMICOLON: 'SEMICOLON'>"}, "sqlglot.tokens.TokenType.STAR": {"fullname": "sqlglot.tokens.TokenType.STAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.STAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.STAR: 'STAR'>"}, "sqlglot.tokens.TokenType.BACKSLASH": {"fullname": "sqlglot.tokens.TokenType.BACKSLASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.BACKSLASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BACKSLASH: 'BACKSLASH'>"}, "sqlglot.tokens.TokenType.SLASH": {"fullname": "sqlglot.tokens.TokenType.SLASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.SLASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SLASH: 'SLASH'>"}, "sqlglot.tokens.TokenType.LT": {"fullname": "sqlglot.tokens.TokenType.LT", "modulename": "sqlglot.tokens", "qualname": "TokenType.LT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LT: 'LT'>"}, "sqlglot.tokens.TokenType.LTE": {"fullname": "sqlglot.tokens.TokenType.LTE", "modulename": "sqlglot.tokens", "qualname": "TokenType.LTE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LTE: 'LTE'>"}, "sqlglot.tokens.TokenType.GT": {"fullname": "sqlglot.tokens.TokenType.GT", "modulename": "sqlglot.tokens", "qualname": "TokenType.GT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.GT: 'GT'>"}, "sqlglot.tokens.TokenType.GTE": {"fullname": "sqlglot.tokens.TokenType.GTE", "modulename": "sqlglot.tokens", "qualname": "TokenType.GTE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.GTE: 'GTE'>"}, "sqlglot.tokens.TokenType.NOT": {"fullname": "sqlglot.tokens.TokenType.NOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.NOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NOT: 'NOT'>"}, "sqlglot.tokens.TokenType.EQ": {"fullname": "sqlglot.tokens.TokenType.EQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.EQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.EQ: 'EQ'>"}, "sqlglot.tokens.TokenType.NEQ": {"fullname": "sqlglot.tokens.TokenType.NEQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.NEQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NEQ: 'NEQ'>"}, "sqlglot.tokens.TokenType.NULLSAFE_EQ": {"fullname": "sqlglot.tokens.TokenType.NULLSAFE_EQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.NULLSAFE_EQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>"}, "sqlglot.tokens.TokenType.AND": {"fullname": "sqlglot.tokens.TokenType.AND", "modulename": "sqlglot.tokens", "qualname": "TokenType.AND", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AND: 'AND'>"}, "sqlglot.tokens.TokenType.OR": {"fullname": "sqlglot.tokens.TokenType.OR", "modulename": "sqlglot.tokens", "qualname": "TokenType.OR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.OR: 'OR'>"}, "sqlglot.tokens.TokenType.AMP": {"fullname": "sqlglot.tokens.TokenType.AMP", "modulename": "sqlglot.tokens", "qualname": "TokenType.AMP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AMP: 'AMP'>"}, "sqlglot.tokens.TokenType.DPIPE": {"fullname": "sqlglot.tokens.TokenType.DPIPE", "modulename": "sqlglot.tokens", "qualname": "TokenType.DPIPE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DPIPE: 'DPIPE'>"}, "sqlglot.tokens.TokenType.PIPE": {"fullname": "sqlglot.tokens.TokenType.PIPE", "modulename": "sqlglot.tokens", "qualname": "TokenType.PIPE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PIPE: 'PIPE'>"}, "sqlglot.tokens.TokenType.CARET": {"fullname": "sqlglot.tokens.TokenType.CARET", "modulename": "sqlglot.tokens", "qualname": "TokenType.CARET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.CARET: 'CARET'>"}, "sqlglot.tokens.TokenType.TILDA": {"fullname": "sqlglot.tokens.TokenType.TILDA", "modulename": "sqlglot.tokens", "qualname": "TokenType.TILDA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TILDA: 'TILDA'>"}, "sqlglot.tokens.TokenType.ARROW": {"fullname": "sqlglot.tokens.TokenType.ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ARROW: 'ARROW'>"}, "sqlglot.tokens.TokenType.DARROW": {"fullname": "sqlglot.tokens.TokenType.DARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.DARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DARROW: 'DARROW'>"}, "sqlglot.tokens.TokenType.FARROW": {"fullname": "sqlglot.tokens.TokenType.FARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.FARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.FARROW: 'FARROW'>"}, "sqlglot.tokens.TokenType.HASH": {"fullname": "sqlglot.tokens.TokenType.HASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.HASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.HASH: 'HASH'>"}, "sqlglot.tokens.TokenType.HASH_ARROW": {"fullname": "sqlglot.tokens.TokenType.HASH_ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.HASH_ARROW", "kind": "variable", "doc": "

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\n", "default_value": "<TokenType.TIME: 'TIME'>"}, "sqlglot.tokens.TokenType.TIMESTAMP": {"fullname": "sqlglot.tokens.TokenType.TIMESTAMP", "modulename": "sqlglot.tokens", "qualname": "TokenType.TIMESTAMP", "kind": "variable", "doc": "

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\n", "default_value": "<TokenType.DATE: 'DATE'>"}, "sqlglot.tokens.TokenType.UUID": {"fullname": "sqlglot.tokens.TokenType.UUID", "modulename": "sqlglot.tokens", "qualname": "TokenType.UUID", "kind": "variable", "doc": "

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\n", "default_value": "<TokenType.ROWVERSION: 'ROWVERSION'>"}, "sqlglot.tokens.TokenType.IMAGE": {"fullname": "sqlglot.tokens.TokenType.IMAGE", "modulename": "sqlglot.tokens", "qualname": "TokenType.IMAGE", "kind": "variable", "doc": "

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\n", "default_value": "<TokenType.ASOF: 'ASOF'>"}, "sqlglot.tokens.TokenType.AT_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.AT_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.AT_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AT_TIME_ZONE: 'AT_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.AUTO_INCREMENT": {"fullname": "sqlglot.tokens.TokenType.AUTO_INCREMENT", "modulename": "sqlglot.tokens", "qualname": "TokenType.AUTO_INCREMENT", "kind": "variable", "doc": "

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\n", "default_value": "<TokenType.BETWEEN: 'BETWEEN'>"}, "sqlglot.tokens.TokenType.BOTH": {"fullname": "sqlglot.tokens.TokenType.BOTH", "modulename": "sqlglot.tokens", "qualname": "TokenType.BOTH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BOTH: 'BOTH'>"}, "sqlglot.tokens.TokenType.BUCKET": {"fullname": "sqlglot.tokens.TokenType.BUCKET", "modulename": "sqlglot.tokens", "qualname": "TokenType.BUCKET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BUCKET: 'BUCKET'>"}, "sqlglot.tokens.TokenType.BY_DEFAULT": {"fullname": "sqlglot.tokens.TokenType.BY_DEFAULT", "modulename": "sqlglot.tokens", "qualname": "TokenType.BY_DEFAULT", "kind": "variable", "doc": "

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\n", "default_value": "<TokenType.CACHE: 'CACHE'>"}, "sqlglot.tokens.TokenType.CASCADE": {"fullname": "sqlglot.tokens.TokenType.CASCADE", "modulename": "sqlglot.tokens", "qualname": "TokenType.CASCADE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.CASCADE: 'CASCADE'>"}, "sqlglot.tokens.TokenType.CASE": {"fullname": "sqlglot.tokens.TokenType.CASE", "modulename": "sqlglot.tokens", "qualname": "TokenType.CASE", "kind": "variable", "doc": "

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\n", "default_value": "<TokenType.OPTIONS: 'OPTIONS'>"}, "sqlglot.tokens.TokenType.ORDER_BY": {"fullname": "sqlglot.tokens.TokenType.ORDER_BY", "modulename": "sqlglot.tokens", "qualname": "TokenType.ORDER_BY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ORDER_BY: 'ORDER_BY'>"}, "sqlglot.tokens.TokenType.ORDERED": {"fullname": "sqlglot.tokens.TokenType.ORDERED", "modulename": "sqlglot.tokens", "qualname": "TokenType.ORDERED", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ORDERED: 'ORDERED'>"}, "sqlglot.tokens.TokenType.ORDINALITY": {"fullname": "sqlglot.tokens.TokenType.ORDINALITY", "modulename": "sqlglot.tokens", "qualname": "TokenType.ORDINALITY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ORDINALITY: 'ORDINALITY'>"}, "sqlglot.tokens.TokenType.OUTER": {"fullname": "sqlglot.tokens.TokenType.OUTER", "modulename": "sqlglot.tokens", "qualname": "TokenType.OUTER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.OUTER: 'OUTER'>"}, "sqlglot.tokens.TokenType.OUT_OF": {"fullname": "sqlglot.tokens.TokenType.OUT_OF", "modulename": "sqlglot.tokens", "qualname": "TokenType.OUT_OF", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.OUT_OF: 'OUT_OF'>"}, "sqlglot.tokens.TokenType.OVER": {"fullname": "sqlglot.tokens.TokenType.OVER", "modulename": "sqlglot.tokens", "qualname": "TokenType.OVER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.OVER: 'OVER'>"}, "sqlglot.tokens.TokenType.OVERLAPS": {"fullname": "sqlglot.tokens.TokenType.OVERLAPS", "modulename": "sqlglot.tokens", "qualname": "TokenType.OVERLAPS", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.OVERLAPS: 'OVERLAPS'>"}, "sqlglot.tokens.TokenType.OVERWRITE": {"fullname": "sqlglot.tokens.TokenType.OVERWRITE", "modulename": "sqlglot.tokens", "qualname": "TokenType.OVERWRITE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.OVERWRITE: 'OVERWRITE'>"}, "sqlglot.tokens.TokenType.PARTITION": {"fullname": "sqlglot.tokens.TokenType.PARTITION", "modulename": "sqlglot.tokens", "qualname": "TokenType.PARTITION", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PARTITION: 'PARTITION'>"}, "sqlglot.tokens.TokenType.PARTITION_BY": {"fullname": "sqlglot.tokens.TokenType.PARTITION_BY", "modulename": "sqlglot.tokens", "qualname": "TokenType.PARTITION_BY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PARTITION_BY: 'PARTITION_BY'>"}, "sqlglot.tokens.TokenType.PERCENT": {"fullname": "sqlglot.tokens.TokenType.PERCENT", "modulename": "sqlglot.tokens", "qualname": "TokenType.PERCENT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PERCENT: 'PERCENT'>"}, "sqlglot.tokens.TokenType.PIVOT": {"fullname": "sqlglot.tokens.TokenType.PIVOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.PIVOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PIVOT: 'PIVOT'>"}, "sqlglot.tokens.TokenType.PLACEHOLDER": {"fullname": "sqlglot.tokens.TokenType.PLACEHOLDER", "modulename": "sqlglot.tokens", "qualname": "TokenType.PLACEHOLDER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PLACEHOLDER: 'PLACEHOLDER'>"}, "sqlglot.tokens.TokenType.PRECEDING": {"fullname": "sqlglot.tokens.TokenType.PRECEDING", "modulename": "sqlglot.tokens", "qualname": "TokenType.PRECEDING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PRECEDING: 'PRECEDING'>"}, "sqlglot.tokens.TokenType.PRIMARY_KEY": {"fullname": "sqlglot.tokens.TokenType.PRIMARY_KEY", "modulename": "sqlglot.tokens", "qualname": "TokenType.PRIMARY_KEY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>"}, "sqlglot.tokens.TokenType.PROCEDURE": {"fullname": "sqlglot.tokens.TokenType.PROCEDURE", "modulename": "sqlglot.tokens", "qualname": "TokenType.PROCEDURE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PROCEDURE: 'PROCEDURE'>"}, "sqlglot.tokens.TokenType.PROPERTIES": {"fullname": "sqlglot.tokens.TokenType.PROPERTIES", "modulename": "sqlglot.tokens", "qualname": "TokenType.PROPERTIES", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PROPERTIES: 'PROPERTIES'>"}, "sqlglot.tokens.TokenType.PSEUDO_TYPE": {"fullname": "sqlglot.tokens.TokenType.PSEUDO_TYPE", "modulename": "sqlglot.tokens", "qualname": "TokenType.PSEUDO_TYPE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>"}, "sqlglot.tokens.TokenType.QUALIFY": {"fullname": "sqlglot.tokens.TokenType.QUALIFY", "modulename": "sqlglot.tokens", "qualname": "TokenType.QUALIFY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.QUALIFY: 'QUALIFY'>"}, "sqlglot.tokens.TokenType.QUOTE": {"fullname": "sqlglot.tokens.TokenType.QUOTE", "modulename": "sqlglot.tokens", "qualname": "TokenType.QUOTE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.QUOTE: 'QUOTE'>"}, "sqlglot.tokens.TokenType.RANGE": {"fullname": "sqlglot.tokens.TokenType.RANGE", "modulename": "sqlglot.tokens", "qualname": "TokenType.RANGE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RANGE: 'RANGE'>"}, "sqlglot.tokens.TokenType.RECURSIVE": {"fullname": "sqlglot.tokens.TokenType.RECURSIVE", "modulename": "sqlglot.tokens", "qualname": "TokenType.RECURSIVE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RECURSIVE: 'RECURSIVE'>"}, "sqlglot.tokens.TokenType.REPLACE": {"fullname": "sqlglot.tokens.TokenType.REPLACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.REPLACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.REPLACE: 'REPLACE'>"}, "sqlglot.tokens.TokenType.RESPECT_NULLS": {"fullname": "sqlglot.tokens.TokenType.RESPECT_NULLS", "modulename": "sqlglot.tokens", "qualname": "TokenType.RESPECT_NULLS", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RESPECT_NULLS: 'RESPECT_NULLS'>"}, "sqlglot.tokens.TokenType.RETURNING": {"fullname": "sqlglot.tokens.TokenType.RETURNING", "modulename": "sqlglot.tokens", "qualname": "TokenType.RETURNING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RETURNING: 'RETURNING'>"}, "sqlglot.tokens.TokenType.REFERENCES": {"fullname": "sqlglot.tokens.TokenType.REFERENCES", "modulename": "sqlglot.tokens", "qualname": "TokenType.REFERENCES", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.REFERENCES: 'REFERENCES'>"}, "sqlglot.tokens.TokenType.RIGHT": {"fullname": "sqlglot.tokens.TokenType.RIGHT", "modulename": "sqlglot.tokens", "qualname": "TokenType.RIGHT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RIGHT: 'RIGHT'>"}, "sqlglot.tokens.TokenType.RLIKE": {"fullname": "sqlglot.tokens.TokenType.RLIKE", "modulename": "sqlglot.tokens", "qualname": "TokenType.RLIKE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RLIKE: 'RLIKE'>"}, "sqlglot.tokens.TokenType.ROLLBACK": {"fullname": "sqlglot.tokens.TokenType.ROLLBACK", "modulename": "sqlglot.tokens", "qualname": "TokenType.ROLLBACK", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ROLLBACK: 'ROLLBACK'>"}, "sqlglot.tokens.TokenType.ROLLUP": {"fullname": "sqlglot.tokens.TokenType.ROLLUP", "modulename": "sqlglot.tokens", "qualname": "TokenType.ROLLUP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ROLLUP: 'ROLLUP'>"}, "sqlglot.tokens.TokenType.ROW": {"fullname": "sqlglot.tokens.TokenType.ROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.ROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ROW: 'ROW'>"}, "sqlglot.tokens.TokenType.ROWS": {"fullname": "sqlglot.tokens.TokenType.ROWS", "modulename": "sqlglot.tokens", "qualname": "TokenType.ROWS", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ROWS: 'ROWS'>"}, "sqlglot.tokens.TokenType.SEED": {"fullname": "sqlglot.tokens.TokenType.SEED", "modulename": "sqlglot.tokens", "qualname": "TokenType.SEED", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SEED: 'SEED'>"}, "sqlglot.tokens.TokenType.SELECT": {"fullname": "sqlglot.tokens.TokenType.SELECT", "modulename": "sqlglot.tokens", "qualname": "TokenType.SELECT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SELECT: 'SELECT'>"}, "sqlglot.tokens.TokenType.SEMI": {"fullname": "sqlglot.tokens.TokenType.SEMI", "modulename": "sqlglot.tokens", "qualname": "TokenType.SEMI", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SEMI: 'SEMI'>"}, "sqlglot.tokens.TokenType.SEPARATOR": {"fullname": "sqlglot.tokens.TokenType.SEPARATOR", "modulename": "sqlglot.tokens", "qualname": "TokenType.SEPARATOR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SEPARATOR: 'SEPARATOR'>"}, "sqlglot.tokens.TokenType.SERDE_PROPERTIES": {"fullname": "sqlglot.tokens.TokenType.SERDE_PROPERTIES", "modulename": "sqlglot.tokens", "qualname": "TokenType.SERDE_PROPERTIES", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SERDE_PROPERTIES: 'SERDE_PROPERTIES'>"}, "sqlglot.tokens.TokenType.SET": {"fullname": "sqlglot.tokens.TokenType.SET", "modulename": "sqlglot.tokens", "qualname": "TokenType.SET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SET: 'SET'>"}, "sqlglot.tokens.TokenType.SHOW": {"fullname": "sqlglot.tokens.TokenType.SHOW", "modulename": "sqlglot.tokens", "qualname": "TokenType.SHOW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SHOW: 'SHOW'>"}, "sqlglot.tokens.TokenType.SIMILAR_TO": {"fullname": "sqlglot.tokens.TokenType.SIMILAR_TO", "modulename": "sqlglot.tokens", "qualname": "TokenType.SIMILAR_TO", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SIMILAR_TO: 'SIMILAR_TO'>"}, "sqlglot.tokens.TokenType.SOME": {"fullname": "sqlglot.tokens.TokenType.SOME", "modulename": "sqlglot.tokens", "qualname": "TokenType.SOME", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SOME: 'SOME'>"}, "sqlglot.tokens.TokenType.SORTKEY": {"fullname": "sqlglot.tokens.TokenType.SORTKEY", "modulename": "sqlglot.tokens", "qualname": "TokenType.SORTKEY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SORTKEY: 'SORTKEY'>"}, "sqlglot.tokens.TokenType.SORT_BY": {"fullname": "sqlglot.tokens.TokenType.SORT_BY", "modulename": "sqlglot.tokens", "qualname": "TokenType.SORT_BY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SORT_BY: 'SORT_BY'>"}, "sqlglot.tokens.TokenType.STRUCT": {"fullname": "sqlglot.tokens.TokenType.STRUCT", "modulename": "sqlglot.tokens", "qualname": "TokenType.STRUCT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.STRUCT: 'STRUCT'>"}, "sqlglot.tokens.TokenType.TABLE_SAMPLE": {"fullname": "sqlglot.tokens.TokenType.TABLE_SAMPLE", "modulename": "sqlglot.tokens", "qualname": "TokenType.TABLE_SAMPLE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>"}, "sqlglot.tokens.TokenType.TEMPORARY": {"fullname": "sqlglot.tokens.TokenType.TEMPORARY", "modulename": "sqlglot.tokens", "qualname": "TokenType.TEMPORARY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TEMPORARY: 'TEMPORARY'>"}, "sqlglot.tokens.TokenType.TOP": {"fullname": "sqlglot.tokens.TokenType.TOP", "modulename": "sqlglot.tokens", "qualname": "TokenType.TOP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TOP: 'TOP'>"}, "sqlglot.tokens.TokenType.THEN": {"fullname": "sqlglot.tokens.TokenType.THEN", "modulename": "sqlglot.tokens", "qualname": "TokenType.THEN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.THEN: 'THEN'>"}, "sqlglot.tokens.TokenType.TRAILING": {"fullname": "sqlglot.tokens.TokenType.TRAILING", "modulename": "sqlglot.tokens", "qualname": "TokenType.TRAILING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TRAILING: 'TRAILING'>"}, "sqlglot.tokens.TokenType.TRUE": {"fullname": "sqlglot.tokens.TokenType.TRUE", "modulename": "sqlglot.tokens", "qualname": "TokenType.TRUE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TRUE: 'TRUE'>"}, "sqlglot.tokens.TokenType.UNBOUNDED": {"fullname": "sqlglot.tokens.TokenType.UNBOUNDED", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNBOUNDED", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNBOUNDED: 'UNBOUNDED'>"}, "sqlglot.tokens.TokenType.UNCACHE": {"fullname": "sqlglot.tokens.TokenType.UNCACHE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNCACHE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNCACHE: 'UNCACHE'>"}, "sqlglot.tokens.TokenType.UNION": {"fullname": "sqlglot.tokens.TokenType.UNION", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNION", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNION: 'UNION'>"}, "sqlglot.tokens.TokenType.UNLOGGED": {"fullname": "sqlglot.tokens.TokenType.UNLOGGED", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNLOGGED", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNLOGGED: 'UNLOGGED'>"}, "sqlglot.tokens.TokenType.UNNEST": {"fullname": "sqlglot.tokens.TokenType.UNNEST", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNNEST", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNNEST: 'UNNEST'>"}, "sqlglot.tokens.TokenType.UNPIVOT": {"fullname": "sqlglot.tokens.TokenType.UNPIVOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNPIVOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNPIVOT: 'UNPIVOT'>"}, "sqlglot.tokens.TokenType.UPDATE": {"fullname": "sqlglot.tokens.TokenType.UPDATE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UPDATE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UPDATE: 'UPDATE'>"}, "sqlglot.tokens.TokenType.USE": {"fullname": "sqlglot.tokens.TokenType.USE", "modulename": "sqlglot.tokens", "qualname": "TokenType.USE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.USE: 'USE'>"}, "sqlglot.tokens.TokenType.USING": {"fullname": "sqlglot.tokens.TokenType.USING", "modulename": "sqlglot.tokens", "qualname": "TokenType.USING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.USING: 'USING'>"}, "sqlglot.tokens.TokenType.VALUES": {"fullname": "sqlglot.tokens.TokenType.VALUES", "modulename": "sqlglot.tokens", "qualname": "TokenType.VALUES", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VALUES: 'VALUES'>"}, "sqlglot.tokens.TokenType.VIEW": {"fullname": "sqlglot.tokens.TokenType.VIEW", "modulename": "sqlglot.tokens", "qualname": "TokenType.VIEW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VIEW: 'VIEW'>"}, "sqlglot.tokens.TokenType.VOLATILE": {"fullname": "sqlglot.tokens.TokenType.VOLATILE", "modulename": "sqlglot.tokens", "qualname": "TokenType.VOLATILE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VOLATILE: 'VOLATILE'>"}, "sqlglot.tokens.TokenType.WHEN": {"fullname": "sqlglot.tokens.TokenType.WHEN", "modulename": "sqlglot.tokens", "qualname": "TokenType.WHEN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WHEN: 'WHEN'>"}, "sqlglot.tokens.TokenType.WHERE": {"fullname": "sqlglot.tokens.TokenType.WHERE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WHERE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WHERE: 'WHERE'>"}, "sqlglot.tokens.TokenType.WINDOW": {"fullname": "sqlglot.tokens.TokenType.WINDOW", "modulename": "sqlglot.tokens", "qualname": "TokenType.WINDOW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WINDOW: 'WINDOW'>"}, "sqlglot.tokens.TokenType.WITH": {"fullname": "sqlglot.tokens.TokenType.WITH", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH: 'WITH'>"}, "sqlglot.tokens.TokenType.WITH_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITH_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH_TIME_ZONE: 'WITH_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.WITH_LOCAL_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITH_LOCAL_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH_LOCAL_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH_LOCAL_TIME_ZONE: 'WITH_LOCAL_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.WITHIN_GROUP": {"fullname": "sqlglot.tokens.TokenType.WITHIN_GROUP", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITHIN_GROUP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITHIN_GROUP: 'WITHIN_GROUP'>"}, "sqlglot.tokens.TokenType.WITHOUT_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITHOUT_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITHOUT_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITHOUT_TIME_ZONE: 'WITHOUT_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.UNIQUE": {"fullname": "sqlglot.tokens.TokenType.UNIQUE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNIQUE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNIQUE: 'UNIQUE'>"}, "sqlglot.tokens.Token": {"fullname": "sqlglot.tokens.Token", "modulename": "sqlglot.tokens", "qualname": "Token", "kind": "class", "doc": "

\n"}, "sqlglot.tokens.Token.__init__": {"fullname": "sqlglot.tokens.Token.__init__", "modulename": "sqlglot.tokens", "qualname": "Token.__init__", "kind": "function", "doc": "

\n", "signature": "(\ttoken_type: sqlglot.tokens.TokenType,\ttext: str,\tline: int = 1,\tcol: int = 1,\tcomments: List[str] = [])"}, "sqlglot.tokens.Token.number": {"fullname": "sqlglot.tokens.Token.number", "modulename": "sqlglot.tokens", "qualname": "Token.number", "kind": "function", "doc": "

Returns a NUMBER token with number as its text.

\n", "signature": "(cls, number: int) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.string": {"fullname": "sqlglot.tokens.Token.string", "modulename": "sqlglot.tokens", "qualname": "Token.string", "kind": "function", "doc": "

Returns a STRING token with string as its text.

\n", "signature": "(cls, string: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.identifier": {"fullname": "sqlglot.tokens.Token.identifier", "modulename": "sqlglot.tokens", "qualname": "Token.identifier", "kind": "function", "doc": "

Returns an IDENTIFIER token with identifier as its text.

\n", "signature": "(cls, identifier: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.var": {"fullname": "sqlglot.tokens.Token.var", "modulename": "sqlglot.tokens", "qualname": "Token.var", "kind": "function", "doc": "

Returns an VAR token with var as its text.

\n", "signature": "(cls, var: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Tokenizer": {"fullname": "sqlglot.tokens.Tokenizer", "modulename": "sqlglot.tokens", "qualname": "Tokenizer", "kind": "class", "doc": "

\n"}, "sqlglot.tokens.Tokenizer.reset": {"fullname": "sqlglot.tokens.Tokenizer.reset", "modulename": "sqlglot.tokens", "qualname": "Tokenizer.reset", "kind": "function", "doc": "

\n", "signature": "(self) -> None:", "funcdef": "def"}, "sqlglot.tokens.Tokenizer.tokenize": {"fullname": "sqlglot.tokens.Tokenizer.tokenize", "modulename": "sqlglot.tokens", "qualname": "Tokenizer.tokenize", "kind": "function", "doc": "

Returns a list of tokens corresponding to the SQL string sql.

\n", "signature": "(self, sql: str) -> List[sqlglot.tokens.Token]:", "funcdef": "def"}, "sqlglot.transforms": {"fullname": "sqlglot.transforms", "modulename": "sqlglot.transforms", "kind": "module", "doc": "

\n"}, "sqlglot.transforms.unalias_group": {"fullname": "sqlglot.transforms.unalias_group", "modulename": "sqlglot.transforms", "qualname": "unalias_group", "kind": "function", "doc": "

Replace references to select aliases in GROUP BY clauses.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT a AS b FROM x GROUP BY b").transform(unalias_group).sql()\n'SELECT a AS b FROM x GROUP BY 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression that will be transformed.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.eliminate_distinct_on": {"fullname": "sqlglot.transforms.eliminate_distinct_on", "modulename": "sqlglot.transforms", "qualname": "eliminate_distinct_on", "kind": "function", "doc": "

Convert SELECT DISTINCT ON statements to a subquery with a window function.

\n\n

This is useful for dialects that don't support SELECT DISTINCT ON but support window functions.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression that will be transformed.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.remove_precision_parameterized_types": {"fullname": "sqlglot.transforms.remove_precision_parameterized_types", "modulename": "sqlglot.transforms", "qualname": "remove_precision_parameterized_types", "kind": "function", "doc": "

Some dialects only allow the precision for parameterized types to be defined in the DDL and not in other expressions.\nThis transforms removes the precision from parameterized types in expressions.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.preprocess": {"fullname": "sqlglot.transforms.preprocess", "modulename": "sqlglot.transforms", "qualname": "preprocess", "kind": "function", "doc": "

Creates a new transform by chaining a sequence of transformations and converts the resulting\nexpression to SQL, using an appropriate Generator.TRANSFORMS function.

\n\n
Arguments:
\n\n
    \n
  • transforms: sequence of transform functions. These will be called in order.
  • \n
  • to_sql: final transform that converts the resulting expression to a SQL string.
  • \n
\n\n
Returns:
\n\n
\n

Function that can be used as a generator transform.

\n
\n", "signature": "(\ttransforms: List[Callable[[sqlglot.expressions.Expression], sqlglot.expressions.Expression]],\tto_sql: Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]) -> Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]:", "funcdef": "def"}, "sqlglot.transforms.delegate": {"fullname": "sqlglot.transforms.delegate", "modulename": "sqlglot.transforms", "qualname": "delegate", "kind": "function", "doc": "

Create a new method that delegates to attr. This is useful for creating Generator.TRANSFORMS\nfunctions that delegate to existing generator methods.

\n", "signature": "(attr: str) -> Callable:", "funcdef": "def"}, "sqlglot.trie": {"fullname": "sqlglot.trie", "modulename": "sqlglot.trie", "kind": "module", "doc": "

\n"}, "sqlglot.trie.new_trie": {"fullname": "sqlglot.trie.new_trie", "modulename": "sqlglot.trie", "qualname": "new_trie", "kind": "function", "doc": "

Creates a new trie out of a collection of keywords.

\n\n

The trie is represented as a sequence of nested dictionaries keyed by either single character\nstrings, or by 0, which is used to designate that a keyword is in the trie.

\n\n
Example:
\n\n
\n
\n
>>> new_trie(["bla", "foo", "blab"])\n{'b': {'l': {'a': {0: True, 'b': {0: True}}}}, 'f': {'o': {'o': {0: True}}}}\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • keywords: the keywords to create the trie from.
  • \n
\n\n
Returns:
\n\n
\n

The trie corresponding to keywords.

\n
\n", "signature": "(keywords: Iterable[Sequence[Hashable]]) -> Dict:", "funcdef": "def"}, "sqlglot.trie.in_trie": {"fullname": "sqlglot.trie.in_trie", "modulename": "sqlglot.trie", "qualname": "in_trie", "kind": "function", "doc": "

Checks whether a key is in a trie.

\n\n
Examples:
\n\n
\n
\n
>>> in_trie(new_trie(["cat"]), "bob")\n(0, {'c': {'a': {'t': {0: True}}}})\n
\n
\n \n
\n
>>> in_trie(new_trie(["cat"]), "ca")\n(1, {'t': {0: True}})\n
\n
\n \n
\n
>>> in_trie(new_trie(["cat"]), "cat")\n(2, {0: True})\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • trie: the trie to be searched.
  • \n
  • key: the target key.
  • \n
\n\n
Returns:
\n\n
\n

A pair (value, subtrie), where subtrie is the sub-trie we get at the point where the search stops, and value\n is either 0 (search was unsuccessful), 1 (value is a prefix of a keyword in trie) or 2 (key is intrie`).

\n
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SQLGlot

\n\n

SQLGlot is a no-dependency SQL parser, transpiler, optimizer, and engine. It can be used to format SQL or translate between 19 different dialects like DuckDB, Presto, Spark, Snowflake, and BigQuery. It aims to read a wide variety of SQL inputs and output syntactically correct SQL in the targeted dialects.

\n\n

It is a very comprehensive generic SQL parser with a robust test suite. It is also quite performant, while being written purely in Python.

\n\n

You can easily customize the parser, analyze queries, traverse expression trees, and programmatically build SQL.

\n\n

Syntax errors are highlighted and dialect incompatibilities can warn or raise depending on configurations. However, it should be noted that SQL validation is not SQLGlot\u2019s goal, so some syntax errors may go unnoticed.

\n\n

Contributions are very welcome in SQLGlot; read the contribution guide to get started!

\n\n

Table of Contents

\n\n\n\n

Install

\n\n

From PyPI:

\n\n
pip3 install sqlglot\n
\n\n

Or with a local checkout:

\n\n
make install\n
\n\n

Requirements for development (optional):

\n\n
make install-dev\n
\n\n

Get in Touch

\n\n

We'd love to hear from you. Join our community Slack channel!

\n\n

Examples

\n\n

Formatting and Transpiling

\n\n

Easily translate from one dialect to another. For example, date/time functions vary from dialects and can be hard to deal with:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT EPOCH_MS(1618088028295)", read="duckdb", write="hive")[0]\n
\n
\n\n
\n
'SELECT FROM_UNIXTIME(1618088028295 / 1000)'\n
\n
\n\n

SQLGlot can even translate custom time formats:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT STRFTIME(x, '%y-%-m-%S')", read="duckdb", write="hive")[0]\n
\n
\n\n
\n
"SELECT DATE_FORMAT(x, 'yy-M-ss')"\n
\n
\n\n

As another example, let's suppose that we want to read in a SQL query that contains a CTE and a cast to REAL, and then transpile it to Spark, which uses backticks for identifiers and FLOAT instead of REAL:

\n\n
\n
import sqlglot\n\nsql = """WITH baz AS (SELECT a, c FROM foo WHERE a = 1) SELECT f.a, b.b, baz.c, CAST("b"."a" AS REAL) d FROM foo f JOIN bar b ON f.a = b.a LEFT JOIN baz ON f.a = baz.a"""\nprint(sqlglot.transpile(sql, write="spark", identify=True, pretty=True)[0])\n
\n
\n\n
\n
WITH `baz` AS (\n  SELECT\n    `a`,\n    `c`\n  FROM `foo`\n  WHERE\n    `a` = 1\n)\nSELECT\n  `f`.`a`,\n  `b`.`b`,\n  `baz`.`c`,\n  CAST(`b`.`a` AS FLOAT) AS `d`\nFROM `foo` AS `f`\nJOIN `bar` AS `b`\n  ON `f`.`a` = `b`.`a`\nLEFT JOIN `baz`\n  ON `f`.`a` = `baz`.`a`\n
\n
\n\n

Comments are also preserved in a best-effort basis when transpiling SQL code:

\n\n
\n
sql = """\n/* multi\n   line\n   comment\n*/\nSELECT\n  tbl.cola /* comment 1 */ + tbl.colb /* comment 2 */,\n  CAST(x AS INT), # comment 3\n  y               -- comment 4\nFROM\n  bar /* comment 5 */,\n  tbl #          comment 6\n"""\n\nprint(sqlglot.transpile(sql, read='mysql', pretty=True)[0])\n
\n
\n\n
\n
/* multi\n   line\n   comment\n*/\nSELECT\n  tbl.cola /* comment 1 */ + tbl.colb /* comment 2 */,\n  CAST(x AS INT), /* comment 3 */\n  y /* comment 4 */\nFROM bar /* comment 5 */, tbl /*          comment 6 */\n
\n
\n\n

Metadata

\n\n

You can explore SQL with expression helpers to do things like find columns and tables:

\n\n
\n
from sqlglot import parse_one, exp\n\n# print all column references (a and b)\nfor column in parse_one("SELECT a, b + 1 AS c FROM d").find_all(exp.Column):\n    print(column.alias_or_name)\n\n# find all projections in select statements (a and c)\nfor select in parse_one("SELECT a, b + 1 AS c FROM d").find_all(exp.Select):\n    for projection in select.expressions:\n        print(projection.alias_or_name)\n\n# find all tables (x, y, z)\nfor table in parse_one("SELECT * FROM x JOIN y JOIN z").find_all(exp.Table):\n    print(table.name)\n
\n
\n\n

Parser Errors

\n\n

When the parser detects an error in the syntax, it raises a ParserError:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT foo( FROM bar")\n
\n
\n\n
sqlglot.errors.ParseError: Expecting ). Line 1, Col: 13.\n  select foo( FROM bar\n              ~~~~\n
\n\n

Structured syntax errors are accessible for programmatic use:

\n\n
\n
import sqlglot\ntry:\n    sqlglot.transpile("SELECT foo( FROM bar")\nexcept sqlglot.errors.ParseError as e:\n    print(e.errors)\n
\n
\n\n
\n
[{\n  'description': 'Expecting )',\n  'line': 1,\n  'col': 13,\n  'start_context': 'SELECT foo( ',\n  'highlight': 'FROM',\n  'end_context': ' bar'\n}]\n
\n
\n\n

Unsupported Errors

\n\n

Presto APPROX_DISTINCT supports the accuracy argument which is not supported in Hive:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT APPROX_DISTINCT(a, 0.1) FROM foo", read="presto", write="hive")\n
\n
\n\n
\n
APPROX_COUNT_DISTINCT does not support accuracy\n'SELECT APPROX_COUNT_DISTINCT(a) FROM foo'\n
\n
\n\n

Build and Modify SQL

\n\n

SQLGlot supports incrementally building sql expressions:

\n\n
\n
from sqlglot import select, condition\n\nwhere = condition("x=1").and_("y=1")\nselect("*").from_("y").where(where).sql()\n
\n
\n\n
\n
'SELECT * FROM y WHERE x = 1 AND y = 1'\n
\n
\n\n

You can also modify a parsed tree:

\n\n
\n
from sqlglot import parse_one\nparse_one("SELECT x FROM y").from_("z").sql()\n
\n
\n\n
\n
'SELECT x FROM y, z'\n
\n
\n\n

There is also a way to recursively transform the parsed tree by applying a mapping function to each tree node:

\n\n
\n
from sqlglot import exp, parse_one\n\nexpression_tree = parse_one("SELECT a FROM x")\n\ndef transformer(node):\n    if isinstance(node, exp.Column) and node.name == "a":\n        return parse_one("FUN(a)")\n    return node\n\ntransformed_tree = expression_tree.transform(transformer)\ntransformed_tree.sql()\n
\n
\n\n
\n
'SELECT FUN(a) FROM x'\n
\n
\n\n

SQL Optimizer

\n\n

SQLGlot can rewrite queries into an \"optimized\" form. It performs a variety of techniques to create a new canonical AST. This AST can be used to standardize queries or provide the foundations for implementing an actual engine. For example:

\n\n
\n
import sqlglot\nfrom sqlglot.optimizer import optimize\n\nprint(\n    optimize(\n        sqlglot.parse_one("""\n            SELECT A OR (B OR (C AND D))\n            FROM x\n            WHERE Z = date '2021-01-01' + INTERVAL '1' month OR 1 = 0\n        """),\n        schema={"x": {"A": "INT", "B": "INT", "C": "INT", "D": "INT", "Z": "STRING"}}\n    ).sql(pretty=True)\n)\n
\n
\n\n
\n
SELECT\n  (\n    "x"."a" OR "x"."b" OR "x"."c"\n  ) AND (\n    "x"."a" OR "x"."b" OR "x"."d"\n  ) AS "_col_0"\nFROM "x" AS "x"\nWHERE\n  CAST("x"."z" AS DATE) = CAST('2021-02-01' AS DATE)\n
\n
\n\n

AST Introspection

\n\n

You can see the AST version of the sql by calling repr:

\n\n
\n
from sqlglot import parse_one\nprint(repr(parse_one("SELECT a + 1 AS z")))\n
\n
\n\n
\n
(SELECT expressions:\n  (ALIAS this:\n    (ADD this:\n      (COLUMN this:\n        (IDENTIFIER this: a, quoted: False)), expression:\n      (LITERAL this: 1, is_string: False)), alias:\n    (IDENTIFIER this: z, quoted: False)))\n
\n
\n\n

AST Diff

\n\n

SQLGlot can calculate the difference between two expressions and output changes in a form of a sequence of actions needed to transform a source expression into a target one:

\n\n
\n
from sqlglot import diff, parse_one\ndiff(parse_one("SELECT a + b, c, d"), parse_one("SELECT c, a - b, d"))\n
\n
\n\n
\n
[\n  Remove(expression=(ADD this:\n    (COLUMN this:\n      (IDENTIFIER this: a, quoted: False)), expression:\n    (COLUMN this:\n      (IDENTIFIER this: b, quoted: False)))),\n  Insert(expression=(SUB this:\n    (COLUMN this:\n      (IDENTIFIER this: a, quoted: False)), expression:\n    (COLUMN this:\n      (IDENTIFIER this: b, quoted: False)))),\n  Move(expression=(COLUMN this:\n    (IDENTIFIER this: c, quoted: False))),\n  Keep(source=(IDENTIFIER this: b, quoted: False), target=(IDENTIFIER this: b, quoted: False)),\n  ...\n]\n
\n
\n\n

See also: Semantic Diff for SQL.

\n\n

Custom Dialects

\n\n

Dialects can be added by subclassing Dialect:

\n\n
\n
from sqlglot import exp\nfrom sqlglot.dialects.dialect import Dialect\nfrom sqlglot.generator import Generator\nfrom sqlglot.tokens import Tokenizer, TokenType\n\n\nclass Custom(Dialect):\n    class Tokenizer(Tokenizer):\n        QUOTES = ["'", '"']\n        IDENTIFIERS = ["`"]\n\n        KEYWORDS = {\n            **Tokenizer.KEYWORDS,\n            "INT64": TokenType.BIGINT,\n            "FLOAT64": TokenType.DOUBLE,\n        }\n\n    class Generator(Generator):\n        TRANSFORMS = {exp.Array: lambda self, e: f"[{self.expressions(e)}]"}\n\n        TYPE_MAPPING = {\n            exp.DataType.Type.TINYINT: "INT64",\n            exp.DataType.Type.SMALLINT: "INT64",\n            exp.DataType.Type.INT: "INT64",\n            exp.DataType.Type.BIGINT: "INT64",\n            exp.DataType.Type.DECIMAL: "NUMERIC",\n            exp.DataType.Type.FLOAT: "FLOAT64",\n            exp.DataType.Type.DOUBLE: "FLOAT64",\n            exp.DataType.Type.BOOLEAN: "BOOL",\n            exp.DataType.Type.TEXT: "STRING",\n        }\n\nprint(Dialect["custom"])\n
\n
\n\n
<class '__main__.Custom'>\n
\n\n

SQL Execution

\n\n

One can even interpret SQL queries using SQLGlot, where the tables are represented as Python dictionaries. Although the engine is not very fast (it's not supposed to be) and is in a relatively early stage of development, it can be useful for unit testing and running SQL natively across Python objects. Additionally, the foundation can be easily integrated with fast compute kernels (arrow, pandas). Below is an example showcasing the execution of a SELECT expression that involves aggregations and JOINs:

\n\n
\n
from sqlglot.executor import execute\n\ntables = {\n    "sushi": [\n        {"id": 1, "price": 1.0},\n        {"id": 2, "price": 2.0},\n        {"id": 3, "price": 3.0},\n    ],\n    "order_items": [\n        {"sushi_id": 1, "order_id": 1},\n        {"sushi_id": 1, "order_id": 1},\n        {"sushi_id": 2, "order_id": 1},\n        {"sushi_id": 3, "order_id": 2},\n    ],\n    "orders": [\n        {"id": 1, "user_id": 1},\n        {"id": 2, "user_id": 2},\n    ],\n}\n\nexecute(\n    """\n    SELECT\n      o.user_id,\n      SUM(s.price) AS price\n    FROM orders o\n    JOIN order_items i\n      ON o.id = i.order_id\n    JOIN sushi s\n      ON i.sushi_id = s.id\n    GROUP BY o.user_id\n    """,\n    tables=tables\n)\n
\n
\n\n
\n
user_id price\n      1   4.0\n      2   3.0\n
\n
\n\n

See also: Writing a Python SQL engine from scratch.

\n\n

Used By

\n\n\n\n

Documentation

\n\n

SQLGlot uses pdoc to serve its API documentation:

\n\n
make docs-serve\n
\n\n

Run Tests and Lint

\n\n
make check  # Set SKIP_INTEGRATION=1 to skip integration tests\n
\n\n

Benchmarks

\n\n

Benchmarks run on Python 3.10.5 in seconds.

\n\n\n\n\n \n \n \n \n \n \n \n\n\n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n
Querysqlglotsqlfluffsqltreesqlparsemoz_sql_parsersqloxide
tpch0.01308 (1.0)1.60626 (122.7)0.01168 (0.893)0.04958 (3.791)0.08543 (6.531)0.00136 (0.104)
short0.00109 (1.0)0.14134 (129.2)0.00099 (0.906)0.00342 (3.131)0.00652 (5.970)8.76E-5 (0.080)
long0.01399 (1.0)2.12632 (151.9)0.01126 (0.805)0.04410 (3.151)0.06671 (4.767)0.00107 (0.076)
crazy0.03969 (1.0)24.3777 (614.1)0.03917 (0.987)11.7043 (294.8)1.03280 (26.02)0.00625 (0.157)
\n\n

Optional Dependencies

\n\n

SQLGlot uses dateutil to simplify literal timedelta expressions. The optimizer will not simplify expressions like the following if the module cannot be found:

\n\n
\n
x + interval '1' month\n
\n
\n\n
\n"}, "sqlglot.pretty": {"fullname": "sqlglot.pretty", "modulename": "sqlglot", "qualname": "pretty", "kind": "variable", "doc": "

Whether to format generated SQL by default.

\n", "default_value": "False"}, "sqlglot.schema": {"fullname": "sqlglot.schema", "modulename": "sqlglot.schema", "kind": "module", "doc": "

\n"}, "sqlglot.parse": {"fullname": "sqlglot.parse", "modulename": "sqlglot", "qualname": "parse", "kind": "function", "doc": "

Parses the given SQL string into a collection of syntax trees, one per parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to parse.
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • **opts: other sqlglot.parser.Parser options.
  • \n
\n\n
Returns:
\n\n
\n

The resulting syntax tree collection.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parse_one": {"fullname": "sqlglot.parse_one", "modulename": "sqlglot", "qualname": "parse_one", "kind": "function", "doc": "

Parses the given SQL string and returns a syntax tree for the first parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to parse.
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • into: the SQLGlot Expression to parse into.
  • \n
  • **opts: other sqlglot.parser.Parser options.
  • \n
\n\n
Returns:
\n\n
\n

The syntax tree for the first parsed statement.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tinto: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]], NoneType] = None,\t**opts) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transpile": {"fullname": "sqlglot.transpile", "modulename": "sqlglot", "qualname": "transpile", "kind": "function", "doc": "

Parses the given SQL string in accordance with the source dialect and returns a list of SQL strings transformed\nto conform to the target dialect. Each string in the returned list represents a single transformed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to transpile.
  • \n
  • read: the source dialect used to parse the input string (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • write: the target dialect into which the input should be transformed (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • identity: if set to True and if the target dialect is not specified the source dialect will be used as both:\nthe source and the target dialect.
  • \n
  • error_level: the desired error level of the parser.
  • \n
  • **opts: other sqlglot.generator.Generator options.
  • \n
\n\n
Returns:
\n\n
\n

The list of transpiled SQL statements.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\twrite: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tidentity: bool = True,\terror_level: Optional[sqlglot.errors.ErrorLevel] = None,\t**opts) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe": {"fullname": "sqlglot.dataframe", "modulename": "sqlglot.dataframe", "kind": "module", "doc": "

PySpark DataFrame SQL Generator

\n\n

This is a drop-in replacement for the PySpark DataFrame API that will generate SQL instead of executing DataFrame operations directly. This, when combined with the transpiling support in SQLGlot, allows one to write PySpark DataFrame code and execute it on other engines like DuckDB, Presto, Spark, Snowflake, and BigQuery.

\n\n

Currently many of the common operations are covered and more functionality will be added over time. Please open an issue or PR with your feedback or contribution to help influence what should be prioritized next and make sure your use case is properly supported.

\n\n

How to use

\n\n

Instructions

\n\n
    \n
  • Install SQLGlot and that is all that is required to just generate SQL. The examples show generating SQL and then executing that SQL on a specific engine and that will require that engine's client library.
  • \n
  • Find/replace all from pyspark.sql with from sqlglot.dataframe.
  • \n
  • Prior to any spark.read.table or spark.table run sqlglot.schema.add_table('<table_name>', <column_structure>).\n
      \n
    • The column structure can be defined the following ways:\n
        \n
      • Dictionary where the keys are column names and values are string of the Spark SQL type name.\n
          \n
        • Ex: {'cola': 'string', 'colb': 'int'}
        • \n
      • \n
      • PySpark DataFrame StructType similar to when using createDataFrame.\n
          \n
        • Ex: StructType([StructField('cola', StringType()), StructField('colb', IntegerType())])
        • \n
      • \n
      • A string of names and types similar to what is supported in createDataFrame.\n
          \n
        • Ex: cola: STRING, colb: INT
        • \n
      • \n
      • [Not Recommended] A list of string column names without type.\n
          \n
        • Ex: ['cola', 'colb']
        • \n
        • The lack of types may limit functionality in future releases.
        • \n
      • \n
    • \n
    • See Registering Custom Schema for information on how to skip this step if the information is stored externally.
    • \n
  • \n
  • Add .sql(pretty=True) to your final DataFrame command to return a list of sql statements to run that command.\n
      \n
    • In most cases a single SQL statement is returned. Currently the only exception is when caching DataFrames which isn't supported in other dialects.
    • \n
    • Spark is the default output dialect. See dialects for a full list of dialects.
    • \n
    • Ex: .sql(pretty=True, dialect='bigquery')
    • \n
  • \n
\n\n

Examples

\n\n
\n
import sqlglot\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import functions as F\n\nsqlglot.schema.add_table('employee', {\n  'employee_id': 'INT',\n  'fname': 'STRING',\n  'lname': 'STRING',\n  'age': 'INT',\n})  # Register the table structure prior to reading from the table\n\nspark = SparkSession()\n\ndf = (\n    spark\n    .table('employee')\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees")) \n)\n\nprint(df.sql(pretty=True))  # Spark will be the dialect used by default\n
\n
\n\n
SELECT\n  `employee`.`age` AS `age`,\n  COUNT(DISTINCT `employee`.`employee_id`) AS `num_employees`\nFROM `employee` AS `employee`\nGROUP BY\n  `employee`.`age`\n
\n\n

Registering Custom Schema Class

\n\n

The step of adding sqlglot.schema.add_table can be skipped if you have the column structure stored externally like in a file or from an external metadata table. This can be done by writing a class that implements the sqlglot.schema.Schema abstract class and then assigning that class to sqlglot.schema.

\n\n
\n
import sqlglot\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import functions as F\nfrom sqlglot.schema import Schema\n\n\nclass ExternalSchema(Schema):\n  ...\n\nsqlglot.schema = ExternalSchema()\n\nspark = SparkSession()\n\ndf = (\n    spark\n    .table('employee')\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees")) \n)\n\nprint(df.sql(pretty=True))\n
\n
\n\n

Example Implementations

\n\n

Bigquery

\n\n
\n
from google.cloud import bigquery\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import types\nfrom sqlglot.dataframe.sql import functions as F\n\nclient = bigquery.Client()\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees"))\n    .sql(dialect="bigquery")\n)\n\nresult = None\nfor sql in sql_statements:\n  result = client.query(sql)\n\nassert result is not None\nfor row in client.query(result):\n    print(f"Age: {row['age']}, Num Employees: {row['num_employees']}")\n
\n
\n\n

Snowflake

\n\n
\n
import os\n\nimport snowflake.connector\nfrom sqlglot.dataframe.session import SparkSession\nfrom sqlglot.dataframe import types\nfrom sqlglot.dataframe import functions as F\n\nctx = snowflake.connector.connect(\n    user=os.environ["SNOWFLAKE_USER"],\n    password=os.environ["SNOWFLAKE_PASS"],\n    account=os.environ["SNOWFLAKE_ACCOUNT"]\n)\ncs = ctx.cursor()\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("lname")).alias("num_employees"))\n    .sql(dialect="snowflake")\n)\n\ntry:\n    for sql in sql_statements:\n        cs.execute(sql)\n    results = cs.fetchall()\n    for row in results:\n        print(f"Age: {row[0]}, Num Employees: {row[1]}")\nfinally:\n    cs.close()\nctx.close()\n
\n
\n\n

Spark

\n\n
\n
from pyspark.sql.session import SparkSession as PySparkSession\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import types\nfrom sqlglot.dataframe.sql import functions as F\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees"))\n    .sql(dialect="spark")\n)\n\npyspark = PySparkSession.builder.master("local[*]").getOrCreate()\n\ndf = None\nfor sql in sql_statements:\n    df = pyspark.sql(sql)\n\nassert df is not None\ndf.show()\n
\n
\n\n

Unsupportable Operations

\n\n

Any operation that lacks a way to represent it in SQL cannot be supported by this tool. An example of this would be rdd operations. Since the DataFrame API though is mostly modeled around SQL concepts most operations can be supported.

\n"}, "sqlglot.dataframe.sql": {"fullname": "sqlglot.dataframe.sql", "modulename": "sqlglot.dataframe.sql", "kind": "module", "doc": "

\n"}, "sqlglot.dataframe.sql.SparkSession": {"fullname": "sqlglot.dataframe.sql.SparkSession", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.SparkSession.table": {"fullname": "sqlglot.dataframe.sql.SparkSession.table", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.table", "kind": "function", "doc": "

\n", "signature": "(self, tableName: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.SparkSession.createDataFrame": {"fullname": "sqlglot.dataframe.sql.SparkSession.createDataFrame", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.createDataFrame", "kind": "function", "doc": "

\n", "signature": "(\tself,\tdata: Sequence[Union[Dict[str, <MagicMock id='139816741409008'>], List[<MagicMock id='139816741409008'>], Tuple]],\tschema: Optional[<MagicMock id='139816741291056'>] = None,\tsamplingRatio: Optional[float] = None,\tverifySchema: bool = False) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.SparkSession.sql": {"fullname": "sqlglot.dataframe.sql.SparkSession.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.sql", "kind": "function", "doc": "

\n", "signature": "(self, sqlQuery: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame": {"fullname": "sqlglot.dataframe.sql.DataFrame", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrame.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrame.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.__init__", "kind": "function", "doc": "

\n", "signature": "(\tspark: <MagicMock id='139816743982688'>,\texpression: sqlglot.expressions.Select,\tbranch_id: Optional[str] = None,\tsequence_id: Optional[str] = None,\tlast_op: sqlglot.dataframe.sql.operations.Operation = <Operation.INIT: -1>,\tpending_hints: Optional[List[sqlglot.expressions.Expression]] = None,\toutput_expression_container: Optional[<MagicMock id='139816744201776'>] = None,\t**kwargs)"}, "sqlglot.dataframe.sql.DataFrame.sql": {"fullname": "sqlglot.dataframe.sql.DataFrame.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.sql", "kind": "function", "doc": "

\n", "signature": "(self, dialect='spark', optimize=True, **kwargs) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.copy": {"fullname": "sqlglot.dataframe.sql.DataFrame.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.select": {"fullname": "sqlglot.dataframe.sql.DataFrame.select", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.select", "kind": "function", "doc": "

\n", "signature": "(self, *cols, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.alias": {"fullname": "sqlglot.dataframe.sql.DataFrame.alias", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.alias", "kind": "function", "doc": "

\n", "signature": "(self, name: str, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.where": {"fullname": "sqlglot.dataframe.sql.DataFrame.where", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.where", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolumn: Union[sqlglot.dataframe.sql.column.Column, bool],\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.filter": {"fullname": "sqlglot.dataframe.sql.DataFrame.filter", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.filter", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolumn: Union[sqlglot.dataframe.sql.column.Column, bool],\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.groupBy": {"fullname": "sqlglot.dataframe.sql.DataFrame.groupBy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.groupBy", "kind": "function", "doc": "

\n", "signature": "(self, *cols, **kwargs) -> sqlglot.dataframe.sql.group.GroupedData:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.agg": {"fullname": "sqlglot.dataframe.sql.DataFrame.agg", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.agg", "kind": "function", "doc": "

\n", "signature": "(self, *exprs, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.join": {"fullname": "sqlglot.dataframe.sql.DataFrame.join", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.join", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother_df: sqlglot.dataframe.sql.dataframe.DataFrame,\ton: Union[str, List[str], sqlglot.dataframe.sql.column.Column, List[sqlglot.dataframe.sql.column.Column]],\thow: str = 'inner',\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.orderBy": {"fullname": "sqlglot.dataframe.sql.DataFrame.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.orderBy", "kind": "function", "doc": "

This implementation lets any ordered columns take priority over whatever is provided in ascending. Spark\nhas irregular behavior and can result in runtime errors. Users shouldn't be mixing the two anyways so this\nis unlikely to come up.

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column],\tascending: Union[Any, List[Any], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.sort": {"fullname": "sqlglot.dataframe.sql.DataFrame.sort", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.sort", "kind": "function", "doc": "

This implementation lets any ordered columns take priority over whatever is provided in ascending. Spark\nhas irregular behavior and can result in runtime errors. Users shouldn't be mixing the two anyways so this\nis unlikely to come up.

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column],\tascending: Union[Any, List[Any], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.union": {"fullname": "sqlglot.dataframe.sql.DataFrame.union", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.union", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.unionAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.unionAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.unionAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.unionByName": {"fullname": "sqlglot.dataframe.sql.DataFrame.unionByName", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.unionByName", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame,\tallowMissingColumns: bool = False):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.intersect": {"fullname": "sqlglot.dataframe.sql.DataFrame.intersect", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.intersect", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.intersectAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.intersectAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.intersectAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.exceptAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.exceptAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.exceptAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.distinct": {"fullname": "sqlglot.dataframe.sql.DataFrame.distinct", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.distinct", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.dropDuplicates": {"fullname": "sqlglot.dataframe.sql.DataFrame.dropDuplicates", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.dropDuplicates", "kind": "function", "doc": "

\n", "signature": "(self, subset: Optional[List[str]] = None):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.dropna": {"fullname": "sqlglot.dataframe.sql.DataFrame.dropna", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.dropna", "kind": "function", "doc": "

\n", "signature": "(\tself,\thow: str = 'any',\tthresh: Optional[int] = None,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.fillna": {"fullname": "sqlglot.dataframe.sql.DataFrame.fillna", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.fillna", "kind": "function", "doc": "

Functionality Difference: If you provide a value to replace a null and that type conflicts\nwith the type of the column then PySpark will just ignore your replacement.\nThis will try to cast them to be the same in some cases. So they won't always match.\nBest to not mix types so make sure replacement is the same type as the column

\n\n

Possibility for improvement: Use typeof function to get the type of the column\nand check if it matches the type of the value provided. If not then make it null.

\n", "signature": "(\tself,\tvalue: <MagicMock id='139816742311856'>,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.replace": {"fullname": "sqlglot.dataframe.sql.DataFrame.replace", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.replace", "kind": "function", "doc": "

\n", "signature": "(\tself,\tto_replace: Union[bool, int, float, str, List, Dict],\tvalue: Union[bool, int, float, str, List, NoneType] = None,\tsubset: Union[Collection[<MagicMock id='139816742247472'>], <MagicMock id='139816742247472'>, NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.withColumn": {"fullname": "sqlglot.dataframe.sql.DataFrame.withColumn", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.withColumn", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolName: str,\tcol: sqlglot.dataframe.sql.column.Column) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.withColumnRenamed": {"fullname": "sqlglot.dataframe.sql.DataFrame.withColumnRenamed", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.withColumnRenamed", "kind": "function", "doc": "

\n", "signature": "(self, existing: str, new: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.drop": {"fullname": "sqlglot.dataframe.sql.DataFrame.drop", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.drop", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.limit": {"fullname": "sqlglot.dataframe.sql.DataFrame.limit", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.limit", "kind": "function", "doc": "

\n", "signature": "(self, num: int) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.hint": {"fullname": "sqlglot.dataframe.sql.DataFrame.hint", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.hint", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\t*parameters: Union[str, int, NoneType]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.repartition": {"fullname": "sqlglot.dataframe.sql.DataFrame.repartition", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.repartition", "kind": "function", "doc": "

\n", "signature": "(\tself,\tnumPartitions: Union[int, <MagicMock id='139816742350096'>],\t*cols: <MagicMock id='139816741969184'>) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.coalesce": {"fullname": "sqlglot.dataframe.sql.DataFrame.coalesce", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.coalesce", "kind": "function", "doc": "

\n", "signature": "(self, numPartitions: int) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.cache": {"fullname": "sqlglot.dataframe.sql.DataFrame.cache", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.cache", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.persist": {"fullname": "sqlglot.dataframe.sql.DataFrame.persist", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.persist", "kind": "function", "doc": "

Storage Level Options: https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-aux-cache-cache-table.html

\n", "signature": "(\tself,\tstorageLevel: str = 'MEMORY_AND_DISK_SER') -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData": {"fullname": "sqlglot.dataframe.sql.GroupedData", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.GroupedData.__init__": {"fullname": "sqlglot.dataframe.sql.GroupedData.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.__init__", "kind": "function", "doc": "

\n", "signature": "(\tdf: sqlglot.dataframe.sql.dataframe.DataFrame,\tgroup_by_cols: List[sqlglot.dataframe.sql.column.Column],\tlast_op: sqlglot.dataframe.sql.operations.Operation)"}, "sqlglot.dataframe.sql.GroupedData.agg": {"fullname": "sqlglot.dataframe.sql.GroupedData.agg", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.agg", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*exprs: Union[sqlglot.dataframe.sql.column.Column, Dict[str, str]]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.count": {"fullname": "sqlglot.dataframe.sql.GroupedData.count", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.count", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.mean": {"fullname": "sqlglot.dataframe.sql.GroupedData.mean", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.mean", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.avg": {"fullname": "sqlglot.dataframe.sql.GroupedData.avg", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.avg", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.max": {"fullname": "sqlglot.dataframe.sql.GroupedData.max", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.max", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.min": {"fullname": "sqlglot.dataframe.sql.GroupedData.min", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.min", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.sum": {"fullname": "sqlglot.dataframe.sql.GroupedData.sum", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.sum", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.pivot": {"fullname": "sqlglot.dataframe.sql.GroupedData.pivot", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.pivot", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column": {"fullname": "sqlglot.dataframe.sql.Column", "modulename": "sqlglot.dataframe.sql", "qualname": "Column", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.Column.__init__": {"fullname": "sqlglot.dataframe.sql.Column.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.__init__", "kind": "function", "doc": "

\n", "signature": "(\texpression: Union[<MagicMock id='139816743230128'>, sqlglot.expressions.Expression, NoneType])"}, "sqlglot.dataframe.sql.Column.ensure_col": {"fullname": "sqlglot.dataframe.sql.Column.ensure_col", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_col", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tvalue: Union[<MagicMock id='139816742475216'>, sqlglot.expressions.Expression, NoneType]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ensure_cols": {"fullname": "sqlglot.dataframe.sql.Column.ensure_cols", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_cols", "kind": "function", "doc": "

\n", "signature": "(\tcls,\targs: List[Union[<MagicMock id='139816742744512'>, sqlglot.expressions.Expression]]) -> List[sqlglot.dataframe.sql.column.Column]:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.invoke_anonymous_function": {"fullname": "sqlglot.dataframe.sql.Column.invoke_anonymous_function", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.invoke_anonymous_function", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tcolumn: Optional[<MagicMock id='139816742608448'>],\tfunc_name: str,\t*args: Optional[<MagicMock id='139816742622240'>]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.invoke_expression_over_column": {"fullname": "sqlglot.dataframe.sql.Column.invoke_expression_over_column", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.invoke_expression_over_column", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tcolumn: Optional[<MagicMock id='139816742786080'>],\tcallable_expression: Callable,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.binary_op": {"fullname": "sqlglot.dataframe.sql.Column.binary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.binary_op", "kind": "function", "doc": "

\n", "signature": "(\tself,\tklass: Callable,\tother: <MagicMock id='139816742826624'>,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.inverse_binary_op": {"fullname": "sqlglot.dataframe.sql.Column.inverse_binary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.inverse_binary_op", "kind": "function", "doc": "

\n", "signature": "(\tself,\tklass: Callable,\tother: <MagicMock id='139816742329968'>,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.unary_op": {"fullname": "sqlglot.dataframe.sql.Column.unary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.unary_op", "kind": "function", "doc": "

\n", "signature": "(self, klass: Callable, **kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ensure_literal": {"fullname": "sqlglot.dataframe.sql.Column.ensure_literal", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_literal", "kind": "function", "doc": "

\n", "signature": "(cls, value) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.copy": {"fullname": "sqlglot.dataframe.sql.Column.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.copy", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.set_table_name": {"fullname": "sqlglot.dataframe.sql.Column.set_table_name", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.set_table_name", "kind": "function", "doc": "

\n", "signature": "(self, table_name: str, copy=False) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.sql": {"fullname": "sqlglot.dataframe.sql.Column.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.alias": {"fullname": "sqlglot.dataframe.sql.Column.alias", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.alias", "kind": "function", "doc": "

\n", "signature": "(self, name: str) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc": {"fullname": "sqlglot.dataframe.sql.Column.asc", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc": {"fullname": "sqlglot.dataframe.sql.Column.desc", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc_nulls_first": {"fullname": "sqlglot.dataframe.sql.Column.asc_nulls_first", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc_nulls_first", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc_nulls_last": {"fullname": "sqlglot.dataframe.sql.Column.asc_nulls_last", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc_nulls_last", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc_nulls_first": {"fullname": "sqlglot.dataframe.sql.Column.desc_nulls_first", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc_nulls_first", "kind": "function", "doc": "

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\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.when": {"fullname": "sqlglot.dataframe.sql.Column.when", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.when", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcondition: sqlglot.dataframe.sql.column.Column,\tvalue: Any) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.otherwise": {"fullname": "sqlglot.dataframe.sql.Column.otherwise", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.otherwise", "kind": "function", "doc": "

\n", "signature": "(self, value: Any) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isNull": {"fullname": "sqlglot.dataframe.sql.Column.isNull", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isNull", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isNotNull": {"fullname": "sqlglot.dataframe.sql.Column.isNotNull", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isNotNull", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.cast": {"fullname": "sqlglot.dataframe.sql.Column.cast", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.cast", "kind": "function", "doc": "

Functionality Difference: PySpark cast accepts a datatype instance of the datatype class\nSqlglot doesn't currently replicate this class so it only accepts a string

\n", "signature": "(self, dataType: Union[str, sqlglot.dataframe.sql.types.DataType]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.startswith": {"fullname": "sqlglot.dataframe.sql.Column.startswith", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.startswith", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.endswith": {"fullname": "sqlglot.dataframe.sql.Column.endswith", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.endswith", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.rlike": {"fullname": "sqlglot.dataframe.sql.Column.rlike", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.rlike", "kind": "function", "doc": "

\n", "signature": "(self, regexp: str) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.like": {"fullname": "sqlglot.dataframe.sql.Column.like", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.like", "kind": "function", "doc": "

\n", "signature": "(self, other: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ilike": {"fullname": "sqlglot.dataframe.sql.Column.ilike", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ilike", "kind": "function", "doc": "

\n", "signature": "(self, other: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.substr": {"fullname": "sqlglot.dataframe.sql.Column.substr", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.substr", "kind": "function", "doc": "

\n", "signature": "(\tself,\tstartPos: Union[int, sqlglot.dataframe.sql.column.Column],\tlength: Union[int, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isin": {"fullname": "sqlglot.dataframe.sql.Column.isin", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isin", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='139816739833744'>, Iterable[<MagicMock id='139816739833744'>]]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.between": {"fullname": "sqlglot.dataframe.sql.Column.between", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.between", "kind": "function", "doc": "

\n", "signature": "(\tself,\tlowerBound: <MagicMock id='139816739992480'>,\tupperBound: <MagicMock id='139816740066480'>) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.over": {"fullname": "sqlglot.dataframe.sql.Column.over", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.over", "kind": "function", "doc": "

\n", "signature": "(\tself,\twindow: <MagicMock id='139816740107696'>) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.__init__", "kind": "function", "doc": "

\n", "signature": "(df: sqlglot.dataframe.sql.dataframe.DataFrame)"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.drop": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.drop", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.drop", "kind": "function", "doc": "

\n", "signature": "(\tself,\thow: str = 'any',\tthresh: Optional[int] = None,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.fill": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.fill", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.fill", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[int, bool, float, str, Dict[str, Any]],\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.replace": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.replace", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.replace", "kind": "function", "doc": "

\n", "signature": "(\tself,\tto_replace: Union[bool, int, float, str, List, Dict],\tvalue: Union[bool, int, float, str, List, NoneType] = None,\tsubset: Union[str, List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window": {"fullname": "sqlglot.dataframe.sql.Window", "modulename": "sqlglot.dataframe.sql", "qualname": "Window", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.Window.partitionBy": {"fullname": "sqlglot.dataframe.sql.Window.partitionBy", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.partitionBy", "kind": "function", "doc": "

\n", "signature": "(\tcls,\t*cols: Union[<MagicMock id='139816740595376'>, List[<MagicMock id='139816740595376'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.orderBy": {"fullname": "sqlglot.dataframe.sql.Window.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.orderBy", "kind": "function", "doc": "

\n", "signature": "(\tcls,\t*cols: Union[<MagicMock id='139816740453728'>, List[<MagicMock id='139816740453728'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.rowsBetween": {"fullname": "sqlglot.dataframe.sql.Window.rowsBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.rowsBetween", "kind": "function", "doc": "

\n", "signature": "(cls, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.rangeBetween": {"fullname": "sqlglot.dataframe.sql.Window.rangeBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.rangeBetween", "kind": "function", "doc": "

\n", "signature": "(cls, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec": {"fullname": "sqlglot.dataframe.sql.WindowSpec", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.WindowSpec.__init__": {"fullname": "sqlglot.dataframe.sql.WindowSpec.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression = (WINDOW ))"}, "sqlglot.dataframe.sql.WindowSpec.copy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.copy", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.sql": {"fullname": "sqlglot.dataframe.sql.WindowSpec.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.partitionBy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.partitionBy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.partitionBy", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='139816740478720'>, List[<MagicMock id='139816740478720'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.orderBy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.orderBy", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='139816740191104'>, List[<MagicMock id='139816740191104'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.rowsBetween": {"fullname": "sqlglot.dataframe.sql.WindowSpec.rowsBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.rowsBetween", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.rangeBetween": {"fullname": "sqlglot.dataframe.sql.WindowSpec.rangeBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.rangeBetween", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameReader": {"fullname": "sqlglot.dataframe.sql.DataFrameReader", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameReader.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameReader.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader.__init__", "kind": "function", "doc": "

\n", "signature": "(spark: sqlglot.dataframe.sql.session.SparkSession)"}, "sqlglot.dataframe.sql.DataFrameReader.table": {"fullname": "sqlglot.dataframe.sql.DataFrameReader.table", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader.table", "kind": "function", "doc": "

\n", "signature": "(self, tableName: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameWriter.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.__init__", "kind": "function", "doc": "

\n", "signature": "(\tdf: sqlglot.dataframe.sql.dataframe.DataFrame,\tspark: Optional[sqlglot.dataframe.sql.session.SparkSession] = None,\tmode: Optional[str] = None,\tby_name: bool = False)"}, "sqlglot.dataframe.sql.DataFrameWriter.copy": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.sql": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.mode": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.mode", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.mode", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsaveMode: Optional[str]) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.insertInto": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.insertInto", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.insertInto", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttableName: str,\toverwrite: Optional[bool] = None) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.saveAsTable": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.saveAsTable", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.saveAsTable", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\tformat: Optional[str] = None,\tmode: Optional[str] = None):", "funcdef": "def"}, "sqlglot.dialects": {"fullname": "sqlglot.dialects", "modulename": "sqlglot.dialects", "kind": "module", "doc": "

Dialects

\n\n

While there is a SQL standard, most SQL engines support a variation of that standard. This makes it difficult\nto write portable SQL code. SQLGlot bridges all the different variations, called \"dialects\", with an extensible\nSQL transpilation framework.

\n\n

The base sqlglot.dialects.dialect.Dialect class implements a generic dialect that aims to be as universal as possible.

\n\n

Each SQL variation has its own Dialect subclass, extending the corresponding Tokenizer, Parser and Generator\nclasses as needed.

\n\n

Implementing a custom Dialect

\n\n

Consider the following example:

\n\n
\n
from sqlglot import exp\nfrom sqlglot.dialects.dialect import Dialect\nfrom sqlglot.generator import Generator\nfrom sqlglot.tokens import Tokenizer, TokenType\n\n\nclass Custom(Dialect):\n    class Tokenizer(Tokenizer):\n        QUOTES = ["'", '"']\n        IDENTIFIERS = ["`"]\n\n        KEYWORDS = {\n            **Tokenizer.KEYWORDS,\n            "INT64": TokenType.BIGINT,\n            "FLOAT64": TokenType.DOUBLE,\n        }\n\n    class Generator(Generator):\n        TRANSFORMS = {exp.Array: lambda self, e: f"[{self.expressions(e)}]"}\n\n        TYPE_MAPPING = {\n            exp.DataType.Type.TINYINT: "INT64",\n            exp.DataType.Type.SMALLINT: "INT64",\n            exp.DataType.Type.INT: "INT64",\n            exp.DataType.Type.BIGINT: "INT64",\n            exp.DataType.Type.DECIMAL: "NUMERIC",\n            exp.DataType.Type.FLOAT: "FLOAT64",\n            exp.DataType.Type.DOUBLE: "FLOAT64",\n            exp.DataType.Type.BOOLEAN: "BOOL",\n            exp.DataType.Type.TEXT: "STRING",\n        }\n
\n
\n\n

This is a typical example of adding a new dialect implementation in SQLGlot: we specify its identifier and string\ndelimiters, as well as what tokens it uses for its types and how they're associated with SQLGlot types. Since\nthe Expression classes are common for each dialect supported in SQLGlot, we may also need to override the generation\nlogic for some expressions; this is usually done by adding new entries to the TRANSFORMS mapping.

\n\n
\n"}, "sqlglot.dialects.bigquery": {"fullname": "sqlglot.dialects.bigquery", "modulename": "sqlglot.dialects.bigquery", "kind": "module", "doc": "

Supports BigQuery Standard SQL.

\n"}, "sqlglot.dialects.bigquery.BigQuery": {"fullname": "sqlglot.dialects.bigquery.BigQuery", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.bigquery.BigQuery.Tokenizer": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Tokenizer", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.bigquery.BigQuery.Parser": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Parser", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.bigquery.BigQuery.Generator": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
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\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.rollback_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.rollback_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.rollback_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.in_unnest_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.in_unnest_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.in_unnest_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Unnest) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.except_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.except_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.except_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Except) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.intersect_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.intersect_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.intersect_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Intersect) -> str:", "funcdef": "def"}, "sqlglot.dialects.clickhouse": {"fullname": "sqlglot.dialects.clickhouse", "modulename": "sqlglot.dialects.clickhouse", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.clickhouse.ClickHouse": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.clickhouse.ClickHouse.Tokenizer": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Tokenizer", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.clickhouse.ClickHouse.Parser": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Parser", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.clickhouse.ClickHouse.Generator": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Generator", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.clickhouse.ClickHouse.Generator.cte_sql": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Generator.cte_sql", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Generator.cte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CTE) -> str:", "funcdef": "def"}, "sqlglot.dialects.databricks": {"fullname": "sqlglot.dialects.databricks", "modulename": "sqlglot.dialects.databricks", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.databricks.Databricks": {"fullname": "sqlglot.dialects.databricks.Databricks", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.spark.Spark"}, "sqlglot.dialects.databricks.Databricks.Parser": {"fullname": "sqlglot.dialects.databricks.Databricks.Parser", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.spark.Spark.Parser"}, "sqlglot.dialects.databricks.Databricks.Generator": {"fullname": "sqlglot.dialects.databricks.Databricks.Generator", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.spark.Spark.Generator"}, "sqlglot.dialects.databricks.Databricks.Tokenizer": {"fullname": "sqlglot.dialects.databricks.Databricks.Tokenizer", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.spark.Spark.Tokenizer"}, "sqlglot.dialects.dialect": {"fullname": "sqlglot.dialects.dialect", "modulename": "sqlglot.dialects.dialect", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.dialect.Dialects": {"fullname": "sqlglot.dialects.dialect.Dialects", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects", "kind": "class", "doc": "

An enumeration.

\n", "bases": "builtins.str, enum.Enum"}, "sqlglot.dialects.dialect.Dialects.DIALECT": {"fullname": "sqlglot.dialects.dialect.Dialects.DIALECT", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DIALECT", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DIALECT: ''>"}, "sqlglot.dialects.dialect.Dialects.BIGQUERY": {"fullname": "sqlglot.dialects.dialect.Dialects.BIGQUERY", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.BIGQUERY", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.BIGQUERY: 'bigquery'>"}, "sqlglot.dialects.dialect.Dialects.CLICKHOUSE": {"fullname": "sqlglot.dialects.dialect.Dialects.CLICKHOUSE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.CLICKHOUSE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.CLICKHOUSE: 'clickhouse'>"}, "sqlglot.dialects.dialect.Dialects.DUCKDB": {"fullname": "sqlglot.dialects.dialect.Dialects.DUCKDB", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DUCKDB", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DUCKDB: 'duckdb'>"}, "sqlglot.dialects.dialect.Dialects.HIVE": {"fullname": "sqlglot.dialects.dialect.Dialects.HIVE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.HIVE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.HIVE: 'hive'>"}, "sqlglot.dialects.dialect.Dialects.MYSQL": {"fullname": "sqlglot.dialects.dialect.Dialects.MYSQL", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.MYSQL", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.MYSQL: 'mysql'>"}, "sqlglot.dialects.dialect.Dialects.ORACLE": {"fullname": "sqlglot.dialects.dialect.Dialects.ORACLE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.ORACLE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.ORACLE: 'oracle'>"}, "sqlglot.dialects.dialect.Dialects.POSTGRES": {"fullname": "sqlglot.dialects.dialect.Dialects.POSTGRES", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.POSTGRES", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.POSTGRES: 'postgres'>"}, "sqlglot.dialects.dialect.Dialects.PRESTO": {"fullname": "sqlglot.dialects.dialect.Dialects.PRESTO", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.PRESTO", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.PRESTO: 'presto'>"}, "sqlglot.dialects.dialect.Dialects.REDSHIFT": {"fullname": "sqlglot.dialects.dialect.Dialects.REDSHIFT", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.REDSHIFT", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.REDSHIFT: 'redshift'>"}, "sqlglot.dialects.dialect.Dialects.SNOWFLAKE": {"fullname": "sqlglot.dialects.dialect.Dialects.SNOWFLAKE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.SNOWFLAKE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.SNOWFLAKE: 'snowflake'>"}, "sqlglot.dialects.dialect.Dialects.SPARK": {"fullname": "sqlglot.dialects.dialect.Dialects.SPARK", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.SPARK", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.SPARK: 'spark'>"}, "sqlglot.dialects.dialect.Dialects.SQLITE": {"fullname": "sqlglot.dialects.dialect.Dialects.SQLITE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.SQLITE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.SQLITE: 'sqlite'>"}, "sqlglot.dialects.dialect.Dialects.STARROCKS": {"fullname": "sqlglot.dialects.dialect.Dialects.STARROCKS", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.STARROCKS", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.STARROCKS: 'starrocks'>"}, "sqlglot.dialects.dialect.Dialects.TABLEAU": {"fullname": "sqlglot.dialects.dialect.Dialects.TABLEAU", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TABLEAU", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TABLEAU: 'tableau'>"}, "sqlglot.dialects.dialect.Dialects.TRINO": {"fullname": "sqlglot.dialects.dialect.Dialects.TRINO", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TRINO", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TRINO: 'trino'>"}, "sqlglot.dialects.dialect.Dialects.TSQL": {"fullname": "sqlglot.dialects.dialect.Dialects.TSQL", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TSQL", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TSQL: 'tsql'>"}, "sqlglot.dialects.dialect.Dialects.DATABRICKS": {"fullname": "sqlglot.dialects.dialect.Dialects.DATABRICKS", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DATABRICKS", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DATABRICKS: 'databricks'>"}, "sqlglot.dialects.dialect.Dialects.DRILL": {"fullname": "sqlglot.dialects.dialect.Dialects.DRILL", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DRILL", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DRILL: 'drill'>"}, "sqlglot.dialects.dialect.Dialects.TERADATA": {"fullname": "sqlglot.dialects.dialect.Dialects.TERADATA", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TERADATA", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TERADATA: 'teradata'>"}, "sqlglot.dialects.dialect.Dialect": {"fullname": "sqlglot.dialects.dialect.Dialect", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect", "kind": "class", "doc": "

\n"}, "sqlglot.dialects.dialect.Dialect.get_or_raise": {"fullname": "sqlglot.dialects.dialect.Dialect.get_or_raise", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.get_or_raise", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType]) -> Type[sqlglot.dialects.dialect.Dialect]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.format_time": {"fullname": "sqlglot.dialects.dialect.Dialect.format_time", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.format_time", "kind": "function", "doc": "

\n", "signature": "(\tcls,\texpression: Union[str, sqlglot.expressions.Expression, NoneType]) -> Optional[sqlglot.expressions.Expression]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.parse": {"fullname": "sqlglot.dialects.dialect.Dialect.parse", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.parse", "kind": "function", "doc": "

\n", "signature": "(self, sql: str, **opts) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.parse_into": {"fullname": "sqlglot.dialects.dialect.Dialect.parse_into", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.parse_into", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression_type: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]]],\tsql: str,\t**opts) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.generate": {"fullname": "sqlglot.dialects.dialect.Dialect.generate", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.generate", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: Optional[sqlglot.expressions.Expression],\t**opts) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.transpile": {"fullname": "sqlglot.dialects.dialect.Dialect.transpile", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.transpile", "kind": "function", "doc": "

\n", "signature": "(self, sql: str, **opts) -> List[str]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.parser": {"fullname": "sqlglot.dialects.dialect.Dialect.parser", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.parser", "kind": "function", "doc": "

\n", "signature": "(self, **opts) -> sqlglot.parser.Parser:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.generator": {"fullname": "sqlglot.dialects.dialect.Dialect.generator", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.generator", "kind": "function", "doc": "

\n", "signature": "(self, **opts) -> sqlglot.generator.Generator:", "funcdef": "def"}, "sqlglot.dialects.dialect.rename_func": {"fullname": "sqlglot.dialects.dialect.rename_func", "modulename": "sqlglot.dialects.dialect", "qualname": "rename_func", "kind": "function", "doc": "

\n", "signature": "(\tname: str) -> Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]:", "funcdef": "def"}, "sqlglot.dialects.dialect.approx_count_distinct_sql": {"fullname": "sqlglot.dialects.dialect.approx_count_distinct_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "approx_count_distinct_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.ApproxDistinct) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.if_sql": {"fullname": "sqlglot.dialects.dialect.if_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "if_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.If) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.arrow_json_extract_sql": {"fullname": "sqlglot.dialects.dialect.arrow_json_extract_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "arrow_json_extract_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.JSONExtract | sqlglot.expressions.JSONBExtract) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.arrow_json_extract_scalar_sql": {"fullname": "sqlglot.dialects.dialect.arrow_json_extract_scalar_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "arrow_json_extract_scalar_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.JSONExtractScalar | sqlglot.expressions.JSONBExtractScalar) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.inline_array_sql": {"fullname": "sqlglot.dialects.dialect.inline_array_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "inline_array_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Array) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_ilike_sql": {"fullname": "sqlglot.dialects.dialect.no_ilike_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_ilike_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.ILike) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_paren_current_date_sql": {"fullname": "sqlglot.dialects.dialect.no_paren_current_date_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_paren_current_date_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.CurrentDate) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_recursive_cte_sql": {"fullname": "sqlglot.dialects.dialect.no_recursive_cte_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_recursive_cte_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.With) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_safe_divide_sql": {"fullname": "sqlglot.dialects.dialect.no_safe_divide_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_safe_divide_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.SafeDivide) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_tablesample_sql": {"fullname": "sqlglot.dialects.dialect.no_tablesample_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_tablesample_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.TableSample) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_pivot_sql": {"fullname": "sqlglot.dialects.dialect.no_pivot_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_pivot_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Pivot) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_trycast_sql": {"fullname": "sqlglot.dialects.dialect.no_trycast_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_trycast_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.TryCast) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_properties_sql": {"fullname": "sqlglot.dialects.dialect.no_properties_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_properties_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.str_position_sql": {"fullname": "sqlglot.dialects.dialect.str_position_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "str_position_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.StrPosition) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.struct_extract_sql": {"fullname": "sqlglot.dialects.dialect.struct_extract_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "struct_extract_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.StructExtract) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.var_map_sql": {"fullname": "sqlglot.dialects.dialect.var_map_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "var_map_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Map | sqlglot.expressions.VarMap,\tmap_func_name: str = 'MAP') -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.format_time_lambda": {"fullname": "sqlglot.dialects.dialect.format_time_lambda", "modulename": "sqlglot.dialects.dialect", "qualname": "format_time_lambda", "kind": "function", "doc": "

Helper used for time expressions.

\n\n
Arguments:
\n\n
    \n
  • exp_class: the expression class to instantiate.
  • \n
  • dialect: target sql dialect.
  • \n
  • default: the default format, True being time.
  • \n
\n\n
Returns:
\n\n
\n

A callable that can be used to return the appropriately formatted time expression.

\n
\n", "signature": "(\texp_class: Type[~E],\tdialect: str,\tdefault: Union[bool, str, NoneType] = None) -> Callable[[Sequence], ~E]:", "funcdef": "def"}, "sqlglot.dialects.dialect.create_with_partitions_sql": {"fullname": "sqlglot.dialects.dialect.create_with_partitions_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "create_with_partitions_sql", "kind": "function", "doc": "

In Hive and Spark, the PARTITIONED BY property acts as an extension of a table's schema. When the\nPARTITIONED BY value is an array of column names, they are transformed into a schema. The corresponding\ncolumns are removed from the create statement.

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Create) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.parse_date_delta": {"fullname": "sqlglot.dialects.dialect.parse_date_delta", "modulename": "sqlglot.dialects.dialect", "qualname": "parse_date_delta", "kind": "function", "doc": "

\n", "signature": "(\texp_class: Type[~E],\tunit_mapping: Optional[Dict[str, str]] = None) -> Callable[[Sequence], ~E]:", "funcdef": "def"}, "sqlglot.dialects.dialect.locate_to_strposition": {"fullname": "sqlglot.dialects.dialect.locate_to_strposition", "modulename": "sqlglot.dialects.dialect", "qualname": "locate_to_strposition", "kind": "function", "doc": "

\n", "signature": "(args: Sequence) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.dialects.dialect.strposition_to_locate_sql": {"fullname": "sqlglot.dialects.dialect.strposition_to_locate_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "strposition_to_locate_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.StrPosition) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.timestrtotime_sql": {"fullname": "sqlglot.dialects.dialect.timestrtotime_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "timestrtotime_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.TimeStrToTime) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.datestrtodate_sql": {"fullname": "sqlglot.dialects.dialect.datestrtodate_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "datestrtodate_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.DateStrToDate) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.min_or_least": {"fullname": "sqlglot.dialects.dialect.min_or_least", "modulename": "sqlglot.dialects.dialect", "qualname": "min_or_least", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Min) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.trim_sql": {"fullname": "sqlglot.dialects.dialect.trim_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "trim_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Trim) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.str_to_time_sql": {"fullname": "sqlglot.dialects.dialect.str_to_time_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "str_to_time_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.ts_or_ds_to_date_sql": {"fullname": "sqlglot.dialects.dialect.ts_or_ds_to_date_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "ts_or_ds_to_date_sql", "kind": "function", "doc": "

\n", "signature": "(dialect: str) -> Callable:", "funcdef": "def"}, "sqlglot.dialects.drill": {"fullname": "sqlglot.dialects.drill", "modulename": "sqlglot.dialects.drill", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.drill.Drill": {"fullname": "sqlglot.dialects.drill.Drill", "modulename": "sqlglot.dialects.drill", "qualname": "Drill", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.drill.Drill.Tokenizer": {"fullname": "sqlglot.dialects.drill.Drill.Tokenizer", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.drill.Drill.Parser": {"fullname": "sqlglot.dialects.drill.Drill.Parser", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.drill.Drill.Generator": {"fullname": "sqlglot.dialects.drill.Drill.Generator", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.drill.Drill.Generator.normalize_func": {"fullname": "sqlglot.dialects.drill.Drill.Generator.normalize_func", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Generator.normalize_func", "kind": "function", "doc": "

\n", "signature": "(self, name: str) -> str:", "funcdef": "def"}, "sqlglot.dialects.duckdb": {"fullname": "sqlglot.dialects.duckdb", "modulename": "sqlglot.dialects.duckdb", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.duckdb.DuckDB": {"fullname": "sqlglot.dialects.duckdb.DuckDB", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.duckdb.DuckDB.Tokenizer": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Tokenizer", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.duckdb.DuckDB.Parser": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Parser", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.duckdb.DuckDB.Generator": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Generator", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.duckdb.DuckDB.Generator.tablesample_sql": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Generator.tablesample_sql", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Generator.tablesample_sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.TableSample,\tseed_prefix: str = 'SEED') -> str:", "funcdef": "def"}, "sqlglot.dialects.hive": {"fullname": "sqlglot.dialects.hive", "modulename": "sqlglot.dialects.hive", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.hive.Hive": {"fullname": "sqlglot.dialects.hive.Hive", "modulename": "sqlglot.dialects.hive", "qualname": "Hive", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.hive.Hive.Tokenizer": {"fullname": "sqlglot.dialects.hive.Hive.Tokenizer", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.hive.Hive.Parser": {"fullname": "sqlglot.dialects.hive.Hive.Parser", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.hive.Hive.Generator": {"fullname": "sqlglot.dialects.hive.Hive.Generator", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.hive.Hive.Generator.with_properties": {"fullname": "sqlglot.dialects.hive.Hive.Generator.with_properties", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.with_properties", "kind": "function", "doc": "

\n", "signature": "(self, properties):", "funcdef": "def"}, "sqlglot.dialects.hive.Hive.Generator.datatype_sql": {"fullname": "sqlglot.dialects.hive.Hive.Generator.datatype_sql", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.datatype_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.mysql": {"fullname": "sqlglot.dialects.mysql", "modulename": "sqlglot.dialects.mysql", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.mysql.MySQL": {"fullname": "sqlglot.dialects.mysql.MySQL", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.mysql.MySQL.Tokenizer": {"fullname": "sqlglot.dialects.mysql.MySQL.Tokenizer", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.mysql.MySQL.Parser": {"fullname": "sqlglot.dialects.mysql.MySQL.Parser", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.mysql.MySQL.Generator": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.mysql.MySQL.Generator.show_sql": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator.show_sql", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator.show_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.mysql.MySQL.Generator.setitem_sql": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator.setitem_sql", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator.setitem_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.mysql.MySQL.Generator.set_sql": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator.set_sql", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator.set_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.oracle": {"fullname": "sqlglot.dialects.oracle", "modulename": "sqlglot.dialects.oracle", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.oracle.Oracle": {"fullname": "sqlglot.dialects.oracle.Oracle", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.oracle.Oracle.Parser": {"fullname": "sqlglot.dialects.oracle.Oracle.Parser", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.oracle.Oracle.Generator": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.oracle.Oracle.Generator.query_modifiers": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.query_modifiers", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.query_modifiers", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression, *sqls: str) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Generator.offset_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.offset_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.offset_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Offset) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Generator.column_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.column_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.column_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Column) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Generator.xmltable_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.xmltable_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.xmltable_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.XMLTable) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Tokenizer": {"fullname": "sqlglot.dialects.oracle.Oracle.Tokenizer", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.postgres": {"fullname": "sqlglot.dialects.postgres", "modulename": "sqlglot.dialects.postgres", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.postgres.Postgres": {"fullname": "sqlglot.dialects.postgres.Postgres", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.postgres.Postgres.Tokenizer": {"fullname": "sqlglot.dialects.postgres.Postgres.Tokenizer", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.postgres.Postgres.Parser": {"fullname": "sqlglot.dialects.postgres.Postgres.Parser", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.postgres.Postgres.Generator": {"fullname": "sqlglot.dialects.postgres.Postgres.Generator", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.presto": {"fullname": "sqlglot.dialects.presto", "modulename": "sqlglot.dialects.presto", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.presto.Presto": {"fullname": "sqlglot.dialects.presto.Presto", "modulename": "sqlglot.dialects.presto", "qualname": "Presto", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.presto.Presto.Tokenizer": {"fullname": "sqlglot.dialects.presto.Presto.Tokenizer", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.presto.Presto.Parser": {"fullname": "sqlglot.dialects.presto.Presto.Parser", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.presto.Presto.Generator": {"fullname": "sqlglot.dialects.presto.Presto.Generator", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.presto.Presto.Generator.transaction_sql": {"fullname": "sqlglot.dialects.presto.Presto.Generator.transaction_sql", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.redshift": {"fullname": "sqlglot.dialects.redshift", "modulename": "sqlglot.dialects.redshift", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.redshift.Redshift": {"fullname": "sqlglot.dialects.redshift.Redshift", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.postgres.Postgres"}, "sqlglot.dialects.redshift.Redshift.Parser": {"fullname": "sqlglot.dialects.redshift.Redshift.Parser", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.postgres.Postgres.Parser"}, "sqlglot.dialects.redshift.Redshift.Tokenizer": {"fullname": "sqlglot.dialects.redshift.Redshift.Tokenizer", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.postgres.Postgres.Tokenizer"}, "sqlglot.dialects.redshift.Redshift.Generator": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.postgres.Postgres.Generator"}, "sqlglot.dialects.redshift.Redshift.Generator.values_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.values_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.values_sql", "kind": "function", "doc": "

Converts VALUES... expression into a series of unions.

\n\n

Note: If you have a lot of unions then this will result in a large number of recursive statements to\nevaluate the expression. You may need to increase sys.setrecursionlimit to run and it can also be\nvery slow.

\n", "signature": "(self, expression: sqlglot.expressions.Values) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.with_properties": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.with_properties", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.with_properties", "kind": "function", "doc": "

Redshift doesn't have WITH as part of their with_properties so we remove it

\n", "signature": "(self, properties: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.renametable_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.renametable_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.renametable_sql", "kind": "function", "doc": "

Redshift only supports defining the table name itself (not the db) when renaming tables

\n", "signature": "(self, expression: sqlglot.expressions.RenameTable) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.datatype_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.datatype_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.datatype_sql", "kind": "function", "doc": "

Redshift converts the TEXT data type to VARCHAR(255) by default when people more generally mean\nVARCHAR of max length which is VARCHAR(max) in Redshift. Therefore if we get a TEXT data type\nwithout precision we convert it to VARCHAR(max) and if it does have precision then we just convert\nTEXT to VARCHAR.

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake": {"fullname": "sqlglot.dialects.snowflake", "modulename": "sqlglot.dialects.snowflake", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.snowflake.Snowflake": {"fullname": "sqlglot.dialects.snowflake.Snowflake", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.snowflake.Snowflake.Parser": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Parser", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.snowflake.Snowflake.Tokenizer": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Tokenizer", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.snowflake.Snowflake.Generator": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.snowflake.Snowflake.Generator.ilikeany_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.ilikeany_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.ilikeany_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ILikeAny) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.likeany_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.likeany_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.likeany_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.LikeAny) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.except_op": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.except_op", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.except_op", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.intersect_op": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.intersect_op", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.intersect_op", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.values_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.values_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.values_sql", "kind": "function", "doc": "

Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.

\n\n

We also want to make sure that after we find matches where we need to unquote a column that we prevent users\nfrom adding quotes to the column by using the identify argument when generating the SQL.

\n", "signature": "(self, expression: sqlglot.expressions.Values) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.settag_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.settag_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.settag_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SetTag) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.select_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.select_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.select_sql", "kind": "function", "doc": "

Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also\nthat all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need\nto unquote a column that we prevent users from adding quotes to the column by using the identify argument when\ngenerating the SQL.

\n\n

Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the\nexpression. This might not be true in a case where the same column name can be sourced from another table that can\nproperly quote but should be true in most cases.

\n", "signature": "(self, expression: sqlglot.expressions.Select) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.describe_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.describe_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.describe_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Describe) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.generatedasidentitycolumnconstraint_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.generatedasidentitycolumnconstraint_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.generatedasidentitycolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.GeneratedAsIdentityColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.dialects.spark": {"fullname": "sqlglot.dialects.spark", "modulename": "sqlglot.dialects.spark", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.spark.Spark": {"fullname": "sqlglot.dialects.spark.Spark", "modulename": "sqlglot.dialects.spark", "qualname": "Spark", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.hive.Hive"}, "sqlglot.dialects.spark.Spark.Parser": {"fullname": "sqlglot.dialects.spark.Spark.Parser", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.hive.Hive.Parser"}, "sqlglot.dialects.spark.Spark.Generator": {"fullname": "sqlglot.dialects.spark.Spark.Generator", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.hive.Hive.Generator"}, "sqlglot.dialects.spark.Spark.Generator.cast_sql": {"fullname": "sqlglot.dialects.spark.Spark.Generator.cast_sql", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Generator.cast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cast) -> str:", "funcdef": "def"}, "sqlglot.dialects.spark.Spark.Tokenizer": {"fullname": "sqlglot.dialects.spark.Spark.Tokenizer", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.hive.Hive.Tokenizer"}, "sqlglot.dialects.sqlite": {"fullname": "sqlglot.dialects.sqlite", "modulename": "sqlglot.dialects.sqlite", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.sqlite.SQLite": {"fullname": "sqlglot.dialects.sqlite.SQLite", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.sqlite.SQLite.Tokenizer": {"fullname": "sqlglot.dialects.sqlite.SQLite.Tokenizer", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.sqlite.SQLite.Parser": {"fullname": "sqlglot.dialects.sqlite.SQLite.Parser", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.sqlite.SQLite.Generator": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.sqlite.SQLite.Generator.fetch_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.fetch_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.fetch_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.sqlite.SQLite.Generator.least_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.least_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.least_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.sqlite.SQLite.Generator.transaction_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.transaction_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.starrocks": {"fullname": "sqlglot.dialects.starrocks", "modulename": "sqlglot.dialects.starrocks", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.starrocks.StarRocks": {"fullname": "sqlglot.dialects.starrocks.StarRocks", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.mysql.MySQL"}, "sqlglot.dialects.starrocks.StarRocks.Generator": {"fullname": "sqlglot.dialects.starrocks.StarRocks.Generator", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.mysql.MySQL.Generator"}, "sqlglot.dialects.tableau": {"fullname": "sqlglot.dialects.tableau", "modulename": "sqlglot.dialects.tableau", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.tableau.Tableau": {"fullname": "sqlglot.dialects.tableau.Tableau", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.tableau.Tableau.Generator": {"fullname": "sqlglot.dialects.tableau.Tableau.Generator", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.tableau.Tableau.Parser": {"fullname": "sqlglot.dialects.tableau.Tableau.Parser", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.teradata": {"fullname": "sqlglot.dialects.teradata", "modulename": "sqlglot.dialects.teradata", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.teradata.Teradata": {"fullname": "sqlglot.dialects.teradata.Teradata", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.teradata.Teradata.Tokenizer": {"fullname": "sqlglot.dialects.teradata.Teradata.Tokenizer", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.teradata.Teradata.Parser": {"fullname": "sqlglot.dialects.teradata.Teradata.Parser", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.teradata.Teradata.Generator": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.teradata.Teradata.Generator.partitionedbyproperty_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.partitionedbyproperty_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.partitionedbyproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.PartitionedByProperty) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.update_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.update_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.update_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Update) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.mod_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.mod_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.mod_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Mod) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.datatype_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.datatype_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.datatype_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.rangen_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.rangen_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.rangen_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.RangeN) -> str:", "funcdef": "def"}, "sqlglot.dialects.trino": {"fullname": "sqlglot.dialects.trino", "modulename": "sqlglot.dialects.trino", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.trino.Trino": {"fullname": "sqlglot.dialects.trino.Trino", "modulename": "sqlglot.dialects.trino", "qualname": "Trino", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.presto.Presto"}, "sqlglot.dialects.trino.Trino.Generator": {"fullname": "sqlglot.dialects.trino.Trino.Generator", "modulename": "sqlglot.dialects.trino", "qualname": "Trino.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.presto.Presto.Generator"}, "sqlglot.dialects.trino.Trino.Tokenizer": {"fullname": "sqlglot.dialects.trino.Trino.Tokenizer", "modulename": "sqlglot.dialects.trino", "qualname": "Trino.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.presto.Presto.Tokenizer"}, "sqlglot.dialects.tsql": {"fullname": "sqlglot.dialects.tsql", "modulename": "sqlglot.dialects.tsql", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.tsql.generate_date_delta_with_unit_sql": {"fullname": "sqlglot.dialects.tsql.generate_date_delta_with_unit_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "generate_date_delta_with_unit_sql", "kind": "function", "doc": "

\n", "signature": "(self, e):", "funcdef": "def"}, "sqlglot.dialects.tsql.TSQL": {"fullname": "sqlglot.dialects.tsql.TSQL", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.tsql.TSQL.Tokenizer": {"fullname": "sqlglot.dialects.tsql.TSQL.Tokenizer", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.tsql.TSQL.Parser": {"fullname": "sqlglot.dialects.tsql.TSQL.Parser", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.tsql.TSQL.Generator": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.tsql.TSQL.Generator.systemtime_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.systemtime_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.systemtime_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SystemTime) -> str:", "funcdef": "def"}, "sqlglot.dialects.tsql.TSQL.Generator.returnsproperty_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.returnsproperty_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.returnsproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ReturnsProperty) -> str:", "funcdef": "def"}, "sqlglot.diff": {"fullname": "sqlglot.diff", "modulename": "sqlglot.diff", "kind": "module", "doc": "

Semantic Diff for SQL

\n\n

by Iaroslav Zeigerman

\n\n

Motivation

\n\n

Software is constantly changing and evolving, and identifying what has changed and reviewing those changes is an integral part of the development process. SQL code is no exception to this.

\n\n

Text-based diff tools such as git diff, when applied to a code base, have certain limitations. First, they can only detect insertions and deletions, not movements or updates of individual pieces of code. Second, such tools can only detect changes between lines of text, which is too coarse for something as granular and detailed as source code. Additionally, the outcome of such a diff is dependent on the underlying code formatting, and yields different results if the formatting should change.

\n\n

Consider the following diff generated by Git:

\n\n

\"Git

\n\n

Semantically the query hasn\u2019t changed. The two arguments b and c have been swapped (moved), posing no impact on the output of the query. Yet Git replaced the whole affected expression alongside a bulk of unrelated elements.

\n\n

The alternative to text-based diffing is to compare Abstract Syntax Trees (AST) instead. The main advantage of ASTs are that they are a direct product of code parsing, which represents the underlying code structure at any desired level of granularity. Comparing ASTs may yield extremely precise diffs; changes such as code movements and updates can also be detected. Even more importantly, this approach facilitates additional use cases beyond eyeballing two versions of source code side by side.

\n\n

The use cases I had in mind for SQL when I decided to embark on this journey of semantic diffing were the following:

\n\n
    \n
  • Query similarity score. Identifying which parts the two queries have in common to automatically suggest opportunities for consolidation, creation of intermediate/staging tables, and so on.
  • \n
  • Differentiating between cosmetic / structural changes and functional ones. For example when a nested query is refactored into a common table expression (CTE), this kind of change doesn\u2019t have any functional impact on either a query or its outcome.
  • \n
  • Automatic suggestions about the need to retroactively backfill data. This is especially important for pipelines that populate very large tables for which restatement is a runtime-intensive procedure. The ability to discern between simple code movements and actual modifications can help assess the impact of a change and make suggestions accordingly.
  • \n
\n\n

The implementation discussed in this post is now a part of the SQLGlot library. You can find a complete source code in the diff.py module. The choice of SQLglot was an obvious one due to its simple but powerful API, lack of external dependencies and, more importantly, extensive list of supported SQL dialects.

\n\n

The Search for a Solution

\n\n

When it comes to any diffing tool (not just a semantic one), the primary challenge is to match as many elements of compared entities as possible. Once such a set of matching elements is available, deriving a sequence of changes becomes an easy task.

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If our elements have unique identifiers associated with them (for example, an element\u2019s ID in DOM), the matching problem is trivial. However, the SQL syntax trees that we are comparing have neither unique keys nor object identifiers that can be used for the purposes of matching. So, how do we suppose to find pairs of nodes that are related?

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To better illustrate the problem, consider comparing the following SQL expressions: SELECT a + b + c, d, e and SELECT a - b + c, e, f. Matching individual nodes from respective syntax trees can be visualized as follows:

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\"Figure\nFigure 1: Example of node matching for two SQL expression trees.

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By looking at the figure of node matching for two SQL expression trees above, we conclude that the following changes should be captured by our solution:

\n\n
    \n
  • Inserted nodes: Sub and f. These are the nodes from the target AST which do not have a matching node in the source AST.
  • \n
  • Removed nodes: Add and d. These are the nodes from the source AST which do not have a counterpart in the target AST.
  • \n
  • Remaining nodes must be identified as unchanged.
  • \n
\n\n

It should be clear at this point that if we manage to match nodes in the source tree with their counterparts in the target tree, then computing the diff becomes a trivial matter.

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Na\u00efve Brute-Force

\n\n

The na\u00efve solution would be to try all different permutations of node pair combinations, and see which set of pairs performs the best based on some type of heuristics. The runtime cost of such a solution quickly reaches the escape velocity; if both trees had only 10 nodes each, the number of such sets would approximately be 10! ^ 2 = 3.6M ^ 2 ~= 13 * 10^12. This is a very bad case of factorial complexity (to be precise, it\u2019s actually much worse - O(n! ^ 2) - but I couldn\u2019t come up with a name for it), so there is little need to explore this approach any further.

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Myers Algorithm

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After the na\u00efve approach was proven to be infeasible, the next question I asked myself was \u201chow does git diff work?\u201d. This question led me to discover the Myers diff algorithm [1]. This algorithm has been designed to compare sequences of strings. At its core, it\u2019s looking for the shortest path on a graph of possible edits that transform the first sequence into the second one, while heavily rewarding those paths that lead to longest subsequences of unchanged elements. There\u2019s a lot of material out there describing this algorithm in greater detail. I found James Coglan\u2019s series of blog posts to be the most comprehensive.

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Therefore, I had this \u201cbrilliant\u201d (actually not) idea to transform trees into sequences by traversing them in topological order, and then applying the Myers algorithm on resulting sequences while using a custom heuristics when checking the equality of two nodes. Unsurprisingly, comparing sequences of strings is quite different from comparing hierarchical tree structures, and by flattening trees into sequences, we lose a lot of relevant context. This resulted in a terrible performance of this algorithm on ASTs. It often matched completely unrelated nodes, even when the two trees were mostly the same, and produced extremely inaccurate lists of changes overall. After playing around with it a little and tweaking my equality heuristics to improve accuracy, I ultimately scrapped the whole implementation and went back to the drawing board.

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Change Distiller

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The algorithm I settled on at the end was Change Distiller, created by Fluri et al. [2], which in turn is an improvement over the core idea described by Chawathe et al. [3].

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The algorithm consists of two high-level steps:

\n\n
    \n
  1. Finding appropriate matchings between pairs of nodes that are part of compared ASTs. Identifying what is meant by \u201cappropriate\u201d matching is also a part of this step.
  2. \n
  3. Generating the so-called \u201cedit script\u201d from the matching set built in the 1st step. The edit script is a sequence of edit operations (for example, insert, remove, update, etc.) on individual tree nodes, such that when applied as transformations on the source AST, it eventually becomes the target AST. In general, the shorter the sequence, the better. The length of the edit script can be used to compare the performance of different algorithms, though this is not the only metric that matters.
  4. \n
\n\n

The rest of this section is dedicated to the Python implementation of the steps above using the AST implementation provided by the SQLGlot library.

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Building the Matching Set

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Matching Leaves

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We begin composing the matching set by matching the leaf nodes. Leaf nodes are the nodes that do not have any children nodes (such as literals, identifiers, etc.). In order to match them, we gather all the leaf nodes from the source tree and generate a cartesian product with all the leaves from the target tree, while comparing pairs created this way and assigning them a similarity score. During this stage, we also exclude pairs that don\u2019t pass basic matching criteria. Then, we pick pairs that scored the highest while making sure that each node is matched no more than once.

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Using the example provided at the beginning of the post, the process of building an initial set of candidate matchings can be seen on Figure 2.

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\"Figure\nFigure 2: Building a set of candidate matchings between leaf nodes. The third item in each triplet represents a similarity score between two nodes.

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First, let\u2019s analyze the similarity score. Then, we\u2019ll discuss matching criteria.

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The similarity score proposed by Fluri et al. [2] is a dice coefficient applied to bigrams of respective node values. A bigram is a sequence of two adjacent elements from a string computed in a sliding window fashion:

\n\n
\n
def bigram(string):\n    count = max(0, len(string) - 1)\n    return [string[i : i + 2] for i in range(count)]\n
\n
\n\n

For reasons that will become clear shortly, we actually need to compute bigram histograms rather than just sequences:

\n\n
\n
from collections import defaultdict\n\ndef bigram_histo(string):\n    count = max(0, len(string) - 1)\n    bigram_histo = defaultdict(int)\n    for i in range(count):\n        bigram_histo[string[i : i + 2]] += 1\n    return bigram_histo\n
\n
\n\n

The dice coefficient formula looks like following:

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\"Dice

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Where X is a bigram of the source node and Y is a bigram of the second one. What this essentially does is count the number of bigram elements the two nodes have in common, multiply it by 2, and then divide by the total number of elements in both bigrams. This is where bigram histograms come in handy:

\n\n
\n
def dice_coefficient(source, target):\n    source_histo = bigram_histo(source.sql())\n    target_histo = bigram_histo(target.sql())\n\n    total_grams = (\n        sum(source_histo.values()) + sum(target_histo.values())\n    )\n    if not total_grams:\n        return 1.0 if source == target else 0.0\n\n    overlap_len = 0\n    overlapping_grams = set(source_histo) & set(target_histo)\n    for g in overlapping_grams:\n        overlap_len += min(source_histo[g], target_histo[g])\n\n    return 2 * overlap_len / total_grams\n
\n
\n\n

To compute a bigram given a tree node, we first transform the node into its canonical SQL representation,so that the Literal(123) node becomes just \u201c123\u201d and the Identifier(\u201ca\u201d) node becomes just \u201ca\u201d. We also handle a scenario when strings are too short to derive bigrams. In this case, we fallback to checking the two nodes for equality.

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Now when we know how to compute the similarity score, we can take care of the matching criteria for leaf nodes. In the original paper [2], the matching criteria is formalized as follows:

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\"Matching

\n\n

The two nodes are matched if two conditions are met:

\n\n
    \n
  1. The node labels match (in our case labels are just node types).
  2. \n
  3. The similarity score for node values is greater than or equal to some threshold \u201cf\u201d. The authors of the paper recommend setting the value of \u201cf\u201d to 0.6.
  4. \n
\n\n

With building blocks in place, we can now build a matching set for leaf nodes. First, we generate a list of candidates for matching:

\n\n
\n
from heapq import heappush, heappop\n\ncandidate_matchings = []\nsource_leaves = _get_leaves(self._source)\ntarget_leaves = _get_leaves(self._target)\nfor source_leaf in source_leaves:\n    for target_leaf in target_leaves:\n        if _is_same_type(source_leaf, target_leaf):\n            similarity_score = dice_coefficient(\n                source_leaf, target_leaf\n            )\n            if similarity_score >= 0.6:\n                heappush(\n                    candidate_matchings,\n                    (\n                        -similarity_score,\n                        len(candidate_matchings),\n                        source_leaf,\n                        target_leaf,\n                    ),\n                )\n
\n
\n\n

In the implementation above, we push each matching pair onto the heap to automatically maintain the correct order based on the assigned similarity score.

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Finally, we build the initial matching set by picking leaf pairs with the highest score:

\n\n
\n
matching_set = set()\nwhile candidate_matchings:\n    _, _, source_leaf, target_leaf = heappop(candidate_matchings)\n    if (\n        source_leaf in unmatched_source_nodes\n        and target_leaf in unmatched_target_nodes\n    ):\n        matching_set.add((source_leaf, target_leaf))\n        unmatched_source_nodes.remove(source_leaf)\n        unmatched_target_nodes.remove(target_leaf)\n
\n
\n\n

To finalize the matching set, we should now proceed with matching inner nodes.

\n\n

Matching Inner Nodes

\n\n

Matching inner nodes is quite similar to matching leaf nodes, with the following two distinctions:

\n\n
    \n
  • Rather than ranking a set of possible candidates, we pick the first node pair that passes the matching criteria.
  • \n
  • The matching criteria itself has been extended to account for the number of leaf nodes the pair of inner nodes have in common.
  • \n
\n\n

\"Figure\nFigure 3: Matching inner nodes based on their type as well as how many of their leaf nodes have been previously matched.

\n\n

Let\u2019s start with the matching criteria. The criteria is formalized as follows:

\n\n

\"Matching

\n\n

Alongside already familiar similarity score and node type criteria, there is a new one in the middle: the ratio of leaf nodes that the two nodes have in common must exceed some threshold \u201ct\u201d. The recommended value for \u201ct\u201d is also 0.6. Counting the number of common leaf nodes is pretty straightforward, since we already have the complete matching set for leaves. All we need to do is count how many matching pairs do leaf nodes from the two compared inner nodes form.

\n\n

There are two additional heuristics associated with this matching criteria:

\n\n
    \n
  • Inner node similarity weighting: if the similarity score between the node values doesn\u2019t pass the threshold \u201cf\u201d but the ratio of common leaf nodes (\u201ct\u201d) is greater than or equal to 0.8, then the matching is considered successful.
  • \n
  • The threshold \u201ct\u201d is reduced to 0.4 for inner nodes with the number of leaf nodes equal to 4 or less, in order to decrease the false negative rate for small subtrees.
  • \n
\n\n

We now only have to iterate through the remaining unmatched nodes and form matching pairs based on the outlined criteria:

\n\n
\n
leaves_matching_set = matching_set.copy()\n\nfor source_node in unmatched_source_nodes.copy():\n    for target_node in unmatched_target_nodes:\n        if _is_same_type(source_node, target_node):\n            source_leaves = set(_get_leaves(source_node))\n            target_leaves = set(_get_leaves(target_node))\n\n            max_leaves_num = max(len(source_leaves), len(target_leaves))\n            if max_leaves_num:\n                common_leaves_num = sum(\n                    1 if s in source_leaves and t in target_leaves else 0\n                    for s, t in leaves_matching_set\n                )\n                leaf_similarity_score = common_leaves_num / max_leaves_num\n            else:\n                leaf_similarity_score = 0.0\n\n            adjusted_t = (\n                0.6\n                if min(len(source_leaves), len(target_leaves)) > 4\n                else 0.4\n            )\n\n            if leaf_similarity_score >= 0.8 or (\n                leaf_similarity_score >= adjusted_t\n                and dice_coefficient(source_node, target_node) >= 0.6\n            ):\n                matching_set.add((source_node, target_node))\n                unmatched_source_nodes.remove(source_node)\n                unmatched_target_nodes.remove(target_node)\n                break\n
\n
\n\n

After the matching set is formed, we can proceed with generation of the edit script, which will be the algorithm\u2019s output.

\n\n

Generating the Edit Script

\n\n

At this point, we should have the following 3 sets at our disposal:

\n\n
    \n
  • The set of matched node pairs.
  • \n
  • The set of remaining unmatched nodes from the source tree.
  • \n
  • The set of remaining unmatched nodes from the target tree.
  • \n
\n\n

We can derive 3 kinds of edits from the matching set: either the node\u2019s value was updated (Update), the node was moved to a different position within the tree (Move), or the node remained unchanged (Keep). Note that the Move case is not mutually exclusive with the other two. The node could have been updated or could have remained the same while at the same time its position within its parent node or the parent node itself could have changed. All unmatched nodes from the source tree are the ones that were removed (Remove), while unmatched nodes from the target tree are the ones that were inserted (Insert).

\n\n

The latter two cases are pretty straightforward to implement:

\n\n
\n
edit_script = []\n\nfor removed_node in unmatched_source_nodes:\n    edit_script.append(Remove(removed_node))\nfor inserted_node in unmatched_target_nodes:\n    edit_script.append(Insert(inserted_node))\n
\n
\n\n

Traversing the matching set requires a little more thought:

\n\n
\n
for source_node, target_node in matching_set:\n    if (\n        not isinstance(source_node, LEAF_EXPRESSION_TYPES)\n        or source_node == target_node\n    ):\n        move_edits = generate_move_edits(\n            source_node, target_node, matching_set\n        )\n        edit_script.extend(move_edits)\n        edit_script.append(Keep(source_node, target_node))\n    else:\n        edit_script.append(Update(source_node, target_node))\n
\n
\n\n

If a matching pair represents a pair of leaf nodes, we check if they are the same to decide whether an update took place. For inner node pairs, we also need to compare the positions of their respective children to detect node movements. Chawathe et al. [3] suggest applying the longest common subsequence (LCS) algorithm which, no surprise here, was described by Myers himself [1]. There is a small catch, however: instead of checking the equality of two children nodes, we need to check whether the two nodes form a pair that is a part of our matching set.

\n\n

Now with this knowledge, the implementation becomes straightforward:

\n\n
\n
def generate_move_edits(source, target, matching_set):\n    source_children = _get_child_nodes(source)\n    target_children = _get_child_nodes(target)\n\n    lcs = set(\n        _longest_common_subsequence(\n            source_children,\n            target_children,\n            lambda l, r: (l, r) in matching_set\n        )\n    )\n\n    move_edits = []\n    for node in source_children:\n        if node not in lcs and node not in unmatched_source_nodes:\n            move_edits.append(Move(node))\n\n    return move_edits\n
\n
\n\n

I left out the implementation of the LCS algorithm itself here, but there are plenty of implementation choices out there that can be easily looked up.

\n\n

Output

\n\n

The implemented algorithm produces the output that resembles the following:

\n\n
\n
>>> from sqlglot import parse_one, diff\n>>> diff(parse_one("SELECT a + b + c, d, e"), parse_one("SELECT a - b + c, e, f"))\n\nRemove(Add)\nRemove(Column(d))\nRemove(Identifier(d))\nInsert(Sub)\nInsert(Column(f))\nInsert(Identifier(f))\nKeep(Select, Select)\nKeep(Add, Add)\nKeep(Column(a), Column(a))\nKeep(Identifier(a), Identifier(a))\nKeep(Column(b), Column(b))\nKeep(Identifier(b), Identifier(b))\nKeep(Column(c), Column(c))\nKeep(Identifier(c), Identifier(c))\nKeep(Column(e), Column(e))\nKeep(Identifier(e), Identifier(e))\n
\n
\n\n

Note that the output above is abbreviated. The string representation of actual AST nodes is significantly more verbose.

\n\n

The implementation works especially well when coupled with the SQLGlot\u2019s query optimizer which can be used to produce canonical representations of compared queries:

\n\n
\n
>>> schema={"t": {"a": "INT", "b": "INT", "c": "INT", "d": "INT"}}\n>>> source = """\n... SELECT 1 + 1 + a\n... FROM t\n... WHERE b = 1 OR (c = 2 AND d = 3)\n... """\n>>> target = """\n... SELECT 2 + a\n... FROM t\n... WHERE (b = 1 OR c = 2) AND (b = 1 OR d = 3)\n... """\n>>> optimized_source = optimize(parse_one(source), schema=schema)\n>>> optimized_target = optimize(parse_one(target), schema=schema)\n>>> edit_script = diff(optimized_source, optimized_target)\n>>> sum(0 if isinstance(e, Keep) else 1 for e in edit_script)\n0\n
\n
\n\n

Optimizations

\n\n

The worst case runtime complexity of this algorithm is not exactly stellar: O(n^2 * log n^2). This is because of the leaf matching process, which involves ranking a cartesian product between all leaf nodes of compared trees. Unsurprisingly, the algorithm takes a considerable time to finish for bigger queries.

\n\n

There are still a few basic things we can do in our implementation to help improve performance:

\n\n
    \n
  • Refer to individual node objects using their identifiers (Python\u2019s id()) instead of direct references in sets. This helps avoid costly recursive hash calculations and equality checks.
  • \n
  • Cache bigram histograms to avoid computing them more than once for the same node.
  • \n
  • Compute the canonical SQL string representation for each tree once while caching string representations of all inner nodes. This prevents redundant tree traversals when bigrams are computed.
  • \n
\n\n

At the time of writing only the first two optimizations have been implemented, so there is an opportunity to contribute for anyone who\u2019s interested.

\n\n

Alternative Solutions

\n\n

This section is dedicated to solutions that I\u2019ve investigated, but haven\u2019t tried.

\n\n

First, this section wouldn\u2019t be complete without Tristan Hume\u2019s blog post. Tristan\u2019s solution has a lot in common with the Myers algorithm plus heuristics that is much more clever than what I came up with. The implementation relies on a combination of dynamic programming and A* search algorithm to explore the space of possible matchings and pick the best ones. It seemed to have worked well for Tistan\u2019s specific use case, but after my negative experience with the Myers algorithm, I decided to try something different.

\n\n

Another notable approach is the Gumtree algorithm by Falleri et al. [4]. I discovered this paper after I\u2019d already implemented the algorithm that is the main focus of this post. In sections 5.2 and 5.3 of their paper, the authors compare the two algorithms side by side and claim that Gumtree is significantly better in terms of both runtime performance and accuracy when evaluated on 12 792 pairs of Java source files. This doesn\u2019t surprise me, as the algorithm takes the height of subtrees into account. In my tests, I definitely saw scenarios in which this context would have helped. On top of that, the authors promise O(n^2) runtime complexity in the worst case which, given the Change Distiller's O(n^2 * log n^2), looks particularly tempting. I hope to try this algorithm out at some point, and there is a good chance you see me writing about it in my future posts.

\n\n

Conclusion

\n\n

The Change Distiller algorithm yielded quite satisfactory results in most of my tests. The scenarios in which it fell short mostly concerned identical (or very similar) subtrees located in different parts of the AST. In those cases, node mismatches were frequent and, as a result, edit scripts were somewhat suboptimal.

\n\n

Additionally, the runtime performance of the algorithm leaves a lot to be desired. On trees with 1000 leaf nodes each, the algorithm takes a little under 2 seconds to complete. My implementation still has room for improvement, but this should give you a rough idea of what to expect. It appears that the Gumtree algorithm [4] can help address both of these points. I hope to find bandwidth to work on it soon and then compare the two algorithms side-by-side to find out which one performs better on SQL specifically. In the meantime, Change Distiller definitely gets the job done, and I can now proceed with applying it to some of the use cases I mentioned at the beginning of this post.

\n\n

I\u2019m also curious to learn whether other folks in the industry faced a similar problem, and how they approached it. If you did something similar, I\u2019m interested to hear about your experience.

\n\n

References

\n\n

[1] Eugene W. Myers. An O(ND) Difference Algorithm and Its Variations. Algorithmica 1(2): 251-266 (1986)

\n\n

[2] B. Fluri, M. Wursch, M. Pinzger, and H. Gall. Change Distilling: Tree differencing for fine-grained source code change extraction. IEEE Trans. Software Eng., 33(11):725\u2013743, 2007.

\n\n

[3] S.S. Chawathe, A. Rajaraman, H. Garcia-Molina, and J. Widom. Change Detection in Hierarchically Structured Information. Proc. ACM Sigmod Int\u2019l Conf. Management of Data, pp. 493-504, June 1996

\n\n

[4] Jean-R\u00e9my Falleri, Flor\u00e9al Morandat, Xavier Blanc, Matias Martinez, Martin Monperrus. Fine-grained and Accurate Source Code Differencing. Proceedings of the International Conference on Automated Software Engineering, 2014, V\u00e4steras, Sweden. pp.313-324, 10.1145/2642937.2642982. hal-01054552

\n\n
\n"}, "sqlglot.diff.Insert": {"fullname": "sqlglot.diff.Insert", "modulename": "sqlglot.diff", "qualname": "Insert", "kind": "class", "doc": "

Indicates that a new node has been inserted

\n"}, "sqlglot.diff.Insert.__init__": {"fullname": "sqlglot.diff.Insert.__init__", "modulename": "sqlglot.diff", "qualname": "Insert.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Remove": {"fullname": "sqlglot.diff.Remove", "modulename": "sqlglot.diff", "qualname": "Remove", "kind": "class", "doc": "

Indicates that an existing node has been removed

\n"}, "sqlglot.diff.Remove.__init__": {"fullname": "sqlglot.diff.Remove.__init__", "modulename": "sqlglot.diff", "qualname": "Remove.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Move": {"fullname": "sqlglot.diff.Move", "modulename": "sqlglot.diff", "qualname": "Move", "kind": "class", "doc": "

Indicates that an existing node's position within the tree has changed

\n"}, "sqlglot.diff.Move.__init__": {"fullname": "sqlglot.diff.Move.__init__", "modulename": "sqlglot.diff", "qualname": "Move.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Update": {"fullname": "sqlglot.diff.Update", "modulename": "sqlglot.diff", "qualname": "Update", "kind": "class", "doc": "

Indicates that an existing node has been updated

\n"}, "sqlglot.diff.Update.__init__": {"fullname": "sqlglot.diff.Update.__init__", "modulename": "sqlglot.diff", "qualname": "Update.__init__", "kind": "function", "doc": "

\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression)"}, "sqlglot.diff.Keep": {"fullname": "sqlglot.diff.Keep", "modulename": "sqlglot.diff", "qualname": "Keep", "kind": "class", "doc": "

Indicates that an existing node hasn't been changed

\n"}, "sqlglot.diff.Keep.__init__": {"fullname": "sqlglot.diff.Keep.__init__", "modulename": "sqlglot.diff", "qualname": "Keep.__init__", "kind": "function", "doc": "

\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression)"}, "sqlglot.diff.diff": {"fullname": "sqlglot.diff.diff", "modulename": "sqlglot.diff", "qualname": "diff", "kind": "function", "doc": "

Returns the list of changes between the source and the target expressions.

\n\n
Examples:
\n\n
\n
\n
>>> diff(parse_one("a + b"), parse_one("a + c"))\n[\n    Remove(expression=(COLUMN this: (IDENTIFIER this: b, quoted: False))),\n    Insert(expression=(COLUMN this: (IDENTIFIER this: c, quoted: False))),\n    Keep(\n        source=(ADD this: ...),\n        target=(ADD this: ...)\n    ),\n    Keep(\n        source=(COLUMN this: (IDENTIFIER this: a, quoted: False)),\n        target=(COLUMN this: (IDENTIFIER this: a, quoted: False))\n    ),\n]\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • source: the source expression.
  • \n
  • target: the target expression against which the diff should be calculated.
  • \n
  • matchings: the list of pre-matched node pairs which is used to help the algorithm's\nheuristics produce better results for subtrees that are known by a caller to be matching.\nNote: expression references in this list must refer to the same node objects that are\nreferenced in source / target trees.
  • \n
\n\n
Returns:
\n\n
\n

the list of Insert, Remove, Move, Update and Keep objects for each node in the source and the\n target expression trees. This list represents a sequence of steps needed to transform the source\n expression tree into the target one.

\n
\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression,\tmatchings: Optional[List[Tuple[sqlglot.expressions.Expression, sqlglot.expressions.Expression]]] = None,\t**kwargs: Any) -> List[Union[sqlglot.diff.Insert, sqlglot.diff.Remove, sqlglot.diff.Move, sqlglot.diff.Update, sqlglot.diff.Keep]]:", "funcdef": "def"}, "sqlglot.diff.ChangeDistiller": {"fullname": "sqlglot.diff.ChangeDistiller", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller", "kind": "class", "doc": "

The implementation of the Change Distiller algorithm described by Beat Fluri and Martin Pinzger in\ntheir paper https://ieeexplore.ieee.org/document/4339230, which in turn is based on the algorithm by\nChawathe et al. described in http://ilpubs.stanford.edu:8090/115/1/1995-46.pdf.

\n"}, "sqlglot.diff.ChangeDistiller.__init__": {"fullname": "sqlglot.diff.ChangeDistiller.__init__", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller.__init__", "kind": "function", "doc": "

\n", "signature": "(f: float = 0.6, t: float = 0.6)"}, "sqlglot.diff.ChangeDistiller.diff": {"fullname": "sqlglot.diff.ChangeDistiller.diff", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller.diff", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression,\tmatchings: Optional[List[Tuple[sqlglot.expressions.Expression, sqlglot.expressions.Expression]]] = None) -> List[Union[sqlglot.diff.Insert, sqlglot.diff.Remove, sqlglot.diff.Move, sqlglot.diff.Update, sqlglot.diff.Keep]]:", "funcdef": "def"}, "sqlglot.errors": {"fullname": "sqlglot.errors", "modulename": "sqlglot.errors", "kind": "module", "doc": "

\n"}, "sqlglot.errors.ErrorLevel": {"fullname": "sqlglot.errors.ErrorLevel", "modulename": "sqlglot.errors", "qualname": "ErrorLevel", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.errors.ErrorLevel.IGNORE": {"fullname": "sqlglot.errors.ErrorLevel.IGNORE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.IGNORE", "kind": "variable", "doc": "

Ignore all errors.

\n", "default_value": "<ErrorLevel.IGNORE: 'IGNORE'>"}, "sqlglot.errors.ErrorLevel.WARN": {"fullname": "sqlglot.errors.ErrorLevel.WARN", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.WARN", "kind": "variable", "doc": "

Log all errors.

\n", "default_value": "<ErrorLevel.WARN: 'WARN'>"}, "sqlglot.errors.ErrorLevel.RAISE": {"fullname": "sqlglot.errors.ErrorLevel.RAISE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.RAISE", "kind": "variable", "doc": "

Collect all errors and raise a single exception.

\n", "default_value": "<ErrorLevel.RAISE: 'RAISE'>"}, "sqlglot.errors.ErrorLevel.IMMEDIATE": {"fullname": "sqlglot.errors.ErrorLevel.IMMEDIATE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.IMMEDIATE", "kind": "variable", "doc": "

Immediately raise an exception on the first error found.

\n", "default_value": "<ErrorLevel.IMMEDIATE: 'IMMEDIATE'>"}, "sqlglot.errors.SqlglotError": {"fullname": "sqlglot.errors.SqlglotError", "modulename": "sqlglot.errors", "qualname": "SqlglotError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "builtins.Exception"}, "sqlglot.errors.UnsupportedError": {"fullname": "sqlglot.errors.UnsupportedError", "modulename": "sqlglot.errors", "qualname": "UnsupportedError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ParseError": {"fullname": "sqlglot.errors.ParseError", "modulename": "sqlglot.errors", "qualname": "ParseError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ParseError.__init__": {"fullname": "sqlglot.errors.ParseError.__init__", "modulename": "sqlglot.errors", "qualname": "ParseError.__init__", "kind": "function", "doc": "

\n", "signature": "(message: str, errors: Optional[List[Dict[str, Any]]] = None)"}, "sqlglot.errors.ParseError.new": {"fullname": "sqlglot.errors.ParseError.new", "modulename": "sqlglot.errors", "qualname": "ParseError.new", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tmessage: str,\tdescription: Optional[str] = None,\tline: Optional[int] = None,\tcol: Optional[int] = None,\tstart_context: Optional[str] = None,\thighlight: Optional[str] = None,\tend_context: Optional[str] = None,\tinto_expression: Optional[str] = None) -> sqlglot.errors.ParseError:", "funcdef": "def"}, "sqlglot.errors.TokenError": {"fullname": "sqlglot.errors.TokenError", "modulename": "sqlglot.errors", "qualname": "TokenError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.OptimizeError": {"fullname": "sqlglot.errors.OptimizeError", "modulename": "sqlglot.errors", "qualname": "OptimizeError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.SchemaError": {"fullname": "sqlglot.errors.SchemaError", "modulename": "sqlglot.errors", "qualname": "SchemaError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ExecuteError": {"fullname": "sqlglot.errors.ExecuteError", "modulename": "sqlglot.errors", "qualname": "ExecuteError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.concat_messages": {"fullname": "sqlglot.errors.concat_messages", "modulename": "sqlglot.errors", "qualname": "concat_messages", "kind": "function", "doc": "

\n", "signature": "(errors: Sequence[Any], maximum: int) -> str:", "funcdef": "def"}, "sqlglot.errors.merge_errors": {"fullname": "sqlglot.errors.merge_errors", "modulename": "sqlglot.errors", "qualname": "merge_errors", "kind": "function", "doc": "

\n", "signature": "(errors: Sequence[sqlglot.errors.ParseError]) -> List[Dict[str, Any]]:", "funcdef": "def"}, "sqlglot.executor": {"fullname": "sqlglot.executor", "modulename": "sqlglot.executor", "kind": "module", "doc": "

Writing a Python SQL engine from scratch

\n\n

Toby Mao

\n\n

Introduction

\n\n

When I first started writing SQLGlot in early 2021, my goal was just to translate SQL queries from SparkSQL to Presto and vice versa. However, over the last year and a half, I've ended up with a full-fledged SQL engine. SQLGlot can now parse and transpile between 18 SQL dialects and can execute all 24 TPC-H SQL queries. The parser and engine are all written from scratch using Python.

\n\n

This post will cover why I went through the effort of creating a Python SQL engine and how a simple query goes from a string to actually transforming data. The following steps are briefly summarized:

\n\n\n\n

Why?

\n\n

I started working on SQLGlot because of my work on the experimentation and metrics platform at Netflix, where I built tools that allowed data scientists to define and compute SQL-based metrics. Netflix relied on multiple engines to query data (Spark, Presto, and Druid), so my team built the metrics platform around PyPika, a Python SQL query builder. This way, definitions could be reused across multiple engines. However, it became quickly apparent that writing python code to programmatically generate SQL was challenging for data scientists, especially those with academic backgrounds, since they were mostly familiar with R and SQL. At the time, the only Python SQL parser was sqlparse, which is not actually a parser but a tokenizer, so having users write raw SQL into the platform wasn't really an option. Some time later, I randomly stumbled across Crafting Interpreters and realized that I could use it as a guide towards creating my own SQL parser/transpiler.

\n\n

Why did I do this? Isn't a Python SQL engine going to be extremely slow?

\n\n

The main reason why I ended up building a SQL engine was...just for entertainment. It's been fun learning about all the things required to actually run a SQL query, and seeing it actually work is extremely rewarding. Before SQLGlot, I had zero experience with lexers, parsers, or compilers.

\n\n

In terms of practical use cases, I planned to use the Python SQL engine for unit testing SQL pipelines. Big data pipelines are tough to test because many of the engines are not open source and cannot be run locally. With SQLGlot, you can take a SQL query targeting a warehouse such as Snowflake and seamlessly run it in CI on mock Python data. It's easy to mock data and create arbitrary UDFs because everything is just Python. Although the implementation is slow and unsuitable for large amounts of data (> 1 million rows), there's very little overhead/startup and you can run queries on test data in a couple of milliseconds.

\n\n

Finally, the components that have been built to support execution can be used as a foundation for a faster engine. I'm inspired by what Apache Calcite has done for the JVM world. Even though Python is commonly used for data, there hasn't been a Calcite for Python. So, you could say that SQLGlot aims to be that framework. For example, it wouldn't take much work to replace the Python execution engine with numpy/pandas/arrow to become a respectably-performing query engine. The implementation would be able to leverage the parser, optimizer, and logical planner, only needing to implement physical execution. There is a lot of work in the Python ecosystem around high performance vectorized computation, which I think could benefit from a pure Python-based AST/plan. Parsing and planning doesn't have to be fast when the bottleneck of running queries is processing terabytes of data. So, having a Python-based ecosystem around SQL is beneficial given the ease of development in Python, despite not having bare metal performance.

\n\n

Parts of SQLGlot's toolkit are being used today by the following:

\n\n
    \n
  • Ibis: A Python library that provides a lightweight, universal interface for data wrangling.\n
      \n
    • Uses the Python SQL expression builder and leverages the optimizer/planner to convert SQL into dataframe operations.
    • \n
  • \n
  • mysql-mimic: Pure-Python implementation of the MySQL server wire protocol\n
      \n
    • Parses / transforms SQL and executes INFORMATION_SCHEMA queries.
    • \n
  • \n
  • Quokka: Push-based vectorized query engine\n
      \n
    • Parse and optimizes SQL.
    • \n
  • \n
  • Splink: Fast, accurate and scalable probabilistic data linkage using your choice of SQL backend.\n
      \n
    • Transpiles queries.
    • \n
  • \n
\n\n

How?

\n\n

There are many steps involved with actually running a simple query like:

\n\n
\n
SELECT\n  bar.a,\n  b + 1 AS b\nFROM bar\nJOIN baz\n  ON bar.a = baz.a\nWHERE bar.a > 1\n
\n
\n\n

In this post, I'll walk through all the steps SQLGlot takes to run this query over Python objects.

\n\n

Tokenizing

\n\n

The first step is to convert the sql string into a list of tokens. SQLGlot's tokenizer is quite simple and can be found here. In a while loop, it checks each character and either appends the character to the current token, or makes a new token.

\n\n

Running the SQLGlot tokenizer shows the output.

\n\n

\"Tokenizer

\n\n

Each keyword has been converted to a SQLGlot Token object. Each token has some metadata associated with it, like line/column information for error messages. Comments are also a part of the token, so that comments can be preserved.

\n\n

Parsing

\n\n

Once a SQL statement is tokenized, we don't need to worry about white space and other formatting, so it's easier to work with. We can now convert the list of tokens into an AST. The SQLGlot parser is a handwritten recursive descent parser.

\n\n

Similar to the tokenizer, it consumes the tokens sequentially, but it instead uses a recursive algorithm. The tokens are converted into a single AST node that presents the SQL query. The SQLGlot parser was designed to support various dialects, so it contains many options for overriding parsing functionality.

\n\n

\"Parser

\n\n

The AST is a generic representation of a given SQL query. Each dialect can override or implement its own generator, which can convert an AST object into syntatically-correct SQL.

\n\n

Optimizing

\n\n

Once we have our AST, we can transform it into an equivalent query that produces the same results more efficiently. When optimizing queries, most engines first convert the AST into a logical plan and then optimize the plan. However, I chose to optimize the AST directly for the following reasons:

\n\n
    \n
  1. It's easier to debug and validate the optimizations when the input and output are both SQL.

  2. \n
  3. Rules can be applied a la carte to transform SQL into a more desirable form.

  4. \n
  5. I wanted a way to generate 'canonical sql'. Having a canonical representation of SQL is useful for understanding if two queries are semantically equivalent (e.g. SELECT 1 + 1 and SELECT 2).

  6. \n
\n\n

I've yet to find another engine that takes this approach, but I'm quite happy with this decision. The optimizer currently does not perform any \"physical optimizations\" such as join reordering. Those are left to the execution layer, as additional statistics and information could become relevant.

\n\n

\"Optimizer

\n\n

The optimizer currently has 17 rules. Each of these rules is applied, transforming the AST in place. The combination of these rules creates \"canonical\" sql that can then be more easily converted into a logical plan and executed.

\n\n

Some example rules are:

\n\n

qualify_tables and qualify_columns

\n\n
    \n
  • Adds all db/catalog qualifiers to tables and forces an alias.
  • \n
  • Ensure each column is unambiguous and expand stars.
  • \n
\n\n
\n
SELECT * FROM x;\n\nSELECT "db"."x" AS "x";\n
\n
\n\n

simplify

\n\n

Boolean and math simplification. Check out all the test cases.

\n\n
\n
((NOT FALSE) AND (x = x)) AND (TRUE OR 1 <> 3);\nx = x;\n\n1 + 1;\n2;\n
\n
\n\n

normalize

\n\n

Attempts to convert all predicates into conjunctive normal form.

\n\n
\n
-- DNF\n(A AND B) OR (B AND C AND D);\n\n-- CNF\n(A OR C) AND (A OR D) AND B;\n
\n
\n\n

unnest_subqueries

\n\n

Converts subqueries in predicates into joins.

\n\n
\n
-- The subquery can be converted into a left join\nSELECT *\nFROM x AS x\nWHERE (\n  SELECT y.a AS a\n  FROM y AS y\n  WHERE x.a = y.a\n) = 1;\n\nSELECT *\nFROM x AS x\nLEFT JOIN (\n  SELECT y.a AS a\n  FROM y AS y\n  WHERE TRUE\n  GROUP BY y.a\n) AS "_u_0"\n  ON x.a = "_u_0".a\nWHERE ("_u_0".a = 1 AND NOT "_u_0".a IS NULL)\n
\n
\n\n

pushdown_predicates

\n\n

Push down filters into the innermost query.

\n\n
\n
SELECT *\nFROM (\n  SELECT *\n  FROM x AS x\n) AS y\nWHERE y.a = 1;\n\nSELECT *\nFROM (\n  SELECT *\n  FROM x AS x\n  WHERE y.a = 1\n) AS y WHERE TRUE\n
\n
\n\n

annotate_types

\n\n

Infer all types throughout the AST given schema information and function type definitions.

\n\n

Planning

\n\n

After the SQL AST has been \"optimized\", it's much easier to convert into a logical plan. The AST is traversed and converted into a DAG consisting of one of five steps. The different steps are:

\n\n

Scan

\n\n

Selects columns from a table, applies projections, and finally filters the table.

\n\n

Sort

\n\n

Sorts a table for order by expressions.

\n\n

Set

\n\n

Applies the operators union/union all/except/intersect.

\n\n

Aggregate

\n\n

Applies an aggregation/group by.

\n\n

Join

\n\n

Joins multiple tables together.

\n\n

\"Planner

\n\n

The logical plan is quite simple and contains the information required to convert it into a physical plan (execution).

\n\n

Executing

\n\n

Finally, we can actually execute the SQL query. The Python engine is not fast, but it's very small (~400 LOC)! It iterates the DAG with a queue and runs each step, passing each intermediary table to the next step.

\n\n

In order to keep things simple, it evaluates expressions with eval. Because SQLGlot was built primarily to be a transpiler, it was simple to create a \"Python SQL\" dialect. So a SQL expression x + 1 can just be converted into scope['x'] + 1.

\n\n

\"Executor

\n\n

What's next

\n\n

SQLGlot's main focus will always be on parsing/transpiling, but I plan to continue development on the execution engine. I'd like to pass TPC-DS. If someone doesn't beat me to it, I may even take a stab at writing a Pandas/Arrow execution engine.

\n\n

I'm hoping that over time, SQLGlot will spark the Python SQL ecosystem just like Calcite has for Java.

\n\n

Special thanks

\n\n

SQLGlot would not be what it is without it's core contributors. In particular, the execution engine would not exist without Barak Alon and George Sittas.

\n\n

Get in touch

\n\n

If you'd like to chat more about SQLGlot, please join my Slack Channel!

\n\n
\n"}, "sqlglot.executor.execute": {"fullname": "sqlglot.executor.execute", "modulename": "sqlglot.executor", "qualname": "execute", "kind": "function", "doc": "

Run a sql query against data.

\n\n
Arguments:
\n\n
    \n
  • sql: a sql statement.
  • \n
  • schema: database schema.\nThis can either be an instance of Schema or a mapping in one of the following forms:\n
      \n
    1. {table: {col: type}}
    2. \n
    3. {db: {table: {col: type}}}
    4. \n
    5. {catalog: {db: {table: {col: type}}}}
    6. \n
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • tables: additional tables to register.
  • \n
\n\n
Returns:
\n\n
\n

Simple columnar data structure.

\n
\n", "signature": "(\tsql: str | sqlglot.expressions.Expression,\tschema: Union[Dict, sqlglot.schema.Schema, NoneType] = None,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\ttables: Optional[Dict] = None) -> sqlglot.executor.table.Table:", "funcdef": "def"}, "sqlglot.executor.context": {"fullname": "sqlglot.executor.context", "modulename": "sqlglot.executor.context", "kind": "module", "doc": "

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Execution context for sql expressions.

\n\n

Context is used to hold relevant data tables which can then be queried on with eval.

\n\n

References to columns can either be scalar or vectors. When set_row is used, column references\nevaluate to scalars while set_range evaluates to vectors. This allows convenient and efficient\nevaluation of aggregation functions.

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Args\n tables: representing the scope of the current execution context.\n env: dictionary of functions within the execution context.

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Decorator that makes a function return None if any of the required arguments are None.

\n\n

This also supports decoration with no arguments, e.g.:

\n\n
@null_if_any\ndef foo(a, b): ...\n
\n\n

In which case all arguments are required.

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Convert a SQL expression into literal Python code and compile it into bytecode.

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Convert an array of SQL expressions into tuple of Python byte code.

\n", "signature": "(self, expressions):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.context": {"fullname": "sqlglot.executor.python.PythonExecutor.context", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.context", "kind": "function", "doc": "

\n", "signature": "(self, tables):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.table": {"fullname": "sqlglot.executor.python.PythonExecutor.table", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.table", "kind": "function", "doc": "

\n", "signature": "(self, expressions):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.scan": {"fullname": "sqlglot.executor.python.PythonExecutor.scan", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.scan", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.static": {"fullname": "sqlglot.executor.python.PythonExecutor.static", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.static", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.scan_table": {"fullname": "sqlglot.executor.python.PythonExecutor.scan_table", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.scan_table", "kind": "function", "doc": "

\n", "signature": "(self, step):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.scan_csv": {"fullname": "sqlglot.executor.python.PythonExecutor.scan_csv", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.scan_csv", "kind": "function", "doc": "

\n", "signature": "(self, step):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.join": {"fullname": "sqlglot.executor.python.PythonExecutor.join", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.join", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.nested_loop_join": {"fullname": "sqlglot.executor.python.PythonExecutor.nested_loop_join", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.nested_loop_join", "kind": "function", "doc": "

\n", "signature": "(self, _join, source_context, join_context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.hash_join": {"fullname": "sqlglot.executor.python.PythonExecutor.hash_join", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.hash_join", "kind": "function", "doc": "

\n", "signature": "(self, join, source_context, join_context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.aggregate": {"fullname": "sqlglot.executor.python.PythonExecutor.aggregate", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.aggregate", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.sort": {"fullname": "sqlglot.executor.python.PythonExecutor.sort", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.sort", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.set_operation": {"fullname": "sqlglot.executor.python.PythonExecutor.set_operation", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.set_operation", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.Python": {"fullname": "sqlglot.executor.python.Python", "modulename": "sqlglot.executor.python", "qualname": "Python", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.executor.python.Python.Tokenizer": {"fullname": "sqlglot.executor.python.Python.Tokenizer", "modulename": "sqlglot.executor.python", "qualname": "Python.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.executor.python.Python.Generator": {"fullname": "sqlglot.executor.python.Python.Generator", "modulename": "sqlglot.executor.python", "qualname": "Python.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.executor.table": {"fullname": "sqlglot.executor.table", "modulename": "sqlglot.executor.table", "kind": "module", "doc": "

\n"}, "sqlglot.executor.table.Table": {"fullname": "sqlglot.executor.table.Table", "modulename": "sqlglot.executor.table", "qualname": "Table", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.Table.__init__": {"fullname": "sqlglot.executor.table.Table.__init__", "modulename": "sqlglot.executor.table", "qualname": "Table.__init__", "kind": "function", "doc": "

\n", "signature": "(columns, rows=None, column_range=None)"}, "sqlglot.executor.table.Table.add_columns": {"fullname": "sqlglot.executor.table.Table.add_columns", "modulename": "sqlglot.executor.table", "qualname": "Table.add_columns", "kind": "function", "doc": "

\n", "signature": "(self, *columns: str) -> None:", "funcdef": "def"}, "sqlglot.executor.table.Table.append": {"fullname": "sqlglot.executor.table.Table.append", "modulename": "sqlglot.executor.table", "qualname": "Table.append", "kind": "function", "doc": "

\n", "signature": "(self, row):", "funcdef": "def"}, "sqlglot.executor.table.Table.pop": {"fullname": "sqlglot.executor.table.Table.pop", "modulename": "sqlglot.executor.table", "qualname": "Table.pop", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.executor.table.TableIter": {"fullname": "sqlglot.executor.table.TableIter", "modulename": "sqlglot.executor.table", "qualname": "TableIter", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.TableIter.__init__": {"fullname": "sqlglot.executor.table.TableIter.__init__", "modulename": "sqlglot.executor.table", "qualname": "TableIter.__init__", "kind": "function", "doc": "

\n", "signature": "(table)"}, "sqlglot.executor.table.RangeReader": {"fullname": "sqlglot.executor.table.RangeReader", "modulename": "sqlglot.executor.table", "qualname": "RangeReader", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.RangeReader.__init__": {"fullname": "sqlglot.executor.table.RangeReader.__init__", "modulename": "sqlglot.executor.table", "qualname": "RangeReader.__init__", "kind": "function", "doc": "

\n", "signature": "(table)"}, "sqlglot.executor.table.RowReader": {"fullname": "sqlglot.executor.table.RowReader", "modulename": "sqlglot.executor.table", "qualname": "RowReader", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.RowReader.__init__": {"fullname": "sqlglot.executor.table.RowReader.__init__", "modulename": "sqlglot.executor.table", "qualname": "RowReader.__init__", "kind": "function", "doc": "

\n", "signature": "(columns, column_range=None)"}, "sqlglot.executor.table.Tables": {"fullname": "sqlglot.executor.table.Tables", "modulename": "sqlglot.executor.table", "qualname": "Tables", "kind": "class", "doc": "

Abstract base class for generic types.

\n\n

A generic type is typically declared by inheriting from\nthis class parameterized with one or more type variables.\nFor example, a generic mapping type might be defined as::

\n\n

class Mapping(Generic[KT, VT]):\n def __getitem__(self, key: KT) -> VT:\n ...\n # Etc.

\n\n

This class can then be used as follows::

\n\n

def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT:\n try:\n return mapping[key]\n except KeyError:\n return default

\n", "bases": "sqlglot.schema.AbstractMappingSchema[sqlglot.executor.table.Table]"}, "sqlglot.executor.table.ensure_tables": {"fullname": "sqlglot.executor.table.ensure_tables", "modulename": "sqlglot.executor.table", "qualname": "ensure_tables", "kind": "function", "doc": "

\n", "signature": "(d: Optional[Dict]) -> sqlglot.executor.table.Tables:", "funcdef": "def"}, "sqlglot.expressions": {"fullname": "sqlglot.expressions", "modulename": "sqlglot.expressions", "kind": "module", "doc": "

Expressions

\n\n

Every AST node in SQLGlot is represented by a subclass of Expression.

\n\n

This module contains the implementation of all supported Expression types. Additionally,\nit exposes a number of helper functions, which are mainly used to programmatically build\nSQL expressions, such as sqlglot.expressions.select.

\n\n
\n"}, "sqlglot.expressions.Expression": {"fullname": "sqlglot.expressions.Expression", "modulename": "sqlglot.expressions", "qualname": "Expression", "kind": "class", "doc": "

The base class for all expressions in a syntax tree. Each Expression encapsulates any necessary\ncontext, such as its child expressions, their names (arg keys), and whether a given child expression\nis optional or not.

\n\n
Attributes:
\n\n
    \n
  • key: a unique key for each class in the Expression hierarchy. This is useful for hashing\nand representing expressions as strings.
  • \n
  • arg_types: determines what arguments (child nodes) are supported by an expression. It\nmaps arg keys to booleans that indicate whether the corresponding args are optional.
  • \n
\n\n
Example:
\n\n
\n
\n
>>> class Foo(Expression):\n...     arg_types = {"this": True, "expression": False}\n
\n
\n \n

The above definition informs us that Foo is an Expression that requires an argument called\n \"this\" and may also optionally receive an argument called \"expression\".

\n
\n\n
Arguments:
\n\n
    \n
  • args: a mapping used for retrieving the arguments of an expression, given their arg keys.
  • \n
  • parent: a reference to the parent expression (or None, in case of root expressions).
  • \n
  • arg_key: the arg key an expression is associated with, i.e. the name its parent expression\nuses to refer to it.
  • \n
  • comments: a list of comments that are associated with a given expression. This is used in\norder to preserve comments when transpiling SQL code.
  • \n
  • _type: the sqlglot.expressions.DataType type of an expression. This is inferred by the\noptimizer, in order to enable some transformations that require type information.
  • \n
\n"}, "sqlglot.expressions.Expression.__init__": {"fullname": "sqlglot.expressions.Expression.__init__", "modulename": "sqlglot.expressions", "qualname": "Expression.__init__", "kind": "function", "doc": "

\n", "signature": "(**args: Any)"}, "sqlglot.expressions.Expression.this": {"fullname": "sqlglot.expressions.Expression.this", "modulename": "sqlglot.expressions", "qualname": "Expression.this", "kind": "variable", "doc": "

Retrieves the argument with key \"this\".

\n"}, "sqlglot.expressions.Expression.expression": {"fullname": "sqlglot.expressions.Expression.expression", "modulename": "sqlglot.expressions", "qualname": "Expression.expression", "kind": "variable", "doc": "

Retrieves the argument with key \"expression\".

\n"}, "sqlglot.expressions.Expression.expressions": {"fullname": "sqlglot.expressions.Expression.expressions", "modulename": "sqlglot.expressions", "qualname": "Expression.expressions", "kind": "variable", "doc": "

Retrieves the argument with key \"expressions\".

\n"}, "sqlglot.expressions.Expression.text": {"fullname": "sqlglot.expressions.Expression.text", "modulename": "sqlglot.expressions", "qualname": "Expression.text", "kind": "function", "doc": "

Returns a textual representation of the argument corresponding to \"key\". This can only be used\nfor args that are strings or leaf Expression instances, such as identifiers and literals.

\n", "signature": "(self, key) -> str:", "funcdef": "def"}, "sqlglot.expressions.Expression.is_string": {"fullname": "sqlglot.expressions.Expression.is_string", "modulename": "sqlglot.expressions", "qualname": "Expression.is_string", "kind": "variable", "doc": "

Checks whether a Literal expression is a string.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_number": {"fullname": "sqlglot.expressions.Expression.is_number", "modulename": "sqlglot.expressions", "qualname": "Expression.is_number", "kind": "variable", "doc": "

Checks whether a Literal expression is a number.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_int": {"fullname": "sqlglot.expressions.Expression.is_int", "modulename": "sqlglot.expressions", "qualname": "Expression.is_int", "kind": "variable", "doc": "

Checks whether a Literal expression is an integer.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_star": {"fullname": "sqlglot.expressions.Expression.is_star", "modulename": "sqlglot.expressions", "qualname": "Expression.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.alias": {"fullname": "sqlglot.expressions.Expression.alias", "modulename": "sqlglot.expressions", "qualname": "Expression.alias", "kind": "variable", "doc": "

Returns the alias of the expression, or an empty string if it's not aliased.

\n", "annotation": ": str"}, "sqlglot.expressions.Expression.output_name": {"fullname": "sqlglot.expressions.Expression.output_name", "modulename": "sqlglot.expressions", "qualname": "Expression.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Expression.copy": {"fullname": "sqlglot.expressions.Expression.copy", "modulename": "sqlglot.expressions", "qualname": "Expression.copy", "kind": "function", "doc": "

Returns a deep copy of the expression.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.append": {"fullname": "sqlglot.expressions.Expression.append", "modulename": "sqlglot.expressions", "qualname": "Expression.append", "kind": "function", "doc": "

Appends value to arg_key if it's a list or sets it as a new list.

\n\n
Arguments:
\n\n
    \n
  • arg_key (str): name of the list expression arg
  • \n
  • value (Any): value to append to the list
  • \n
\n", "signature": "(self, arg_key, value):", "funcdef": "def"}, "sqlglot.expressions.Expression.set": {"fullname": "sqlglot.expressions.Expression.set", "modulename": "sqlglot.expressions", "qualname": "Expression.set", "kind": "function", "doc": "

Sets arg_key to value.

\n\n
Arguments:
\n\n
    \n
  • arg_key (str): name of the expression arg.
  • \n
  • value: value to set the arg to.
  • \n
\n", "signature": "(self, arg_key, value):", "funcdef": "def"}, "sqlglot.expressions.Expression.depth": {"fullname": "sqlglot.expressions.Expression.depth", "modulename": "sqlglot.expressions", "qualname": "Expression.depth", "kind": "variable", "doc": "

Returns the depth of this tree.

\n"}, "sqlglot.expressions.Expression.find": {"fullname": "sqlglot.expressions.Expression.find", "modulename": "sqlglot.expressions", "qualname": "Expression.find", "kind": "function", "doc": "

Returns the first node in this tree which matches at least one of\nthe specified types.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The node which matches the criteria or None if no such node was found.

\n
\n", "signature": "(self, *expression_types: Type[~E], bfs=True) -> Optional[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.find_all": {"fullname": "sqlglot.expressions.Expression.find_all", "modulename": "sqlglot.expressions", "qualname": "Expression.find_all", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree and only\nyields those that match at least one of the specified expression types.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, *expression_types: Type[~E], bfs=True) -> Iterator[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.find_ancestor": {"fullname": "sqlglot.expressions.Expression.find_ancestor", "modulename": "sqlglot.expressions", "qualname": "Expression.find_ancestor", "kind": "function", "doc": "

Returns a nearest parent matching expression_types.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The parent node.

\n
\n", "signature": "(self, *expression_types: Type[~E]) -> Optional[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.parent_select": {"fullname": "sqlglot.expressions.Expression.parent_select", "modulename": "sqlglot.expressions", "qualname": "Expression.parent_select", "kind": "variable", "doc": "

Returns the parent select statement.

\n"}, "sqlglot.expressions.Expression.root": {"fullname": "sqlglot.expressions.Expression.root", "modulename": "sqlglot.expressions", "qualname": "Expression.root", "kind": "function", "doc": "

Returns the root expression of this tree.

\n", "signature": "(self) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.Expression.walk": {"fullname": "sqlglot.expressions.Expression.walk", "modulename": "sqlglot.expressions", "qualname": "Expression.walk", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree.

\n\n
Arguments:
\n\n
    \n
  • bfs (bool): if set to True the BFS traversal order will be applied,\notherwise the DFS traversal will be used instead.
  • \n
  • prune ((node, parent, arg_key) -> bool): callable that returns True if\nthe generator should stop traversing this branch of the tree.
  • \n
\n\n
Returns:
\n\n
\n

the generator object.

\n
\n", "signature": "(self, bfs=True, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.dfs": {"fullname": "sqlglot.expressions.Expression.dfs", "modulename": "sqlglot.expressions", "qualname": "Expression.dfs", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree in\nthe DFS (Depth-first) order.

\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, parent=None, key=None, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.bfs": {"fullname": "sqlglot.expressions.Expression.bfs", "modulename": "sqlglot.expressions", "qualname": "Expression.bfs", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree in\nthe BFS (Breadth-first) order.

\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.unnest": {"fullname": "sqlglot.expressions.Expression.unnest", "modulename": "sqlglot.expressions", "qualname": "Expression.unnest", "kind": "function", "doc": "

Returns the first non parenthesis child or self.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.unalias": {"fullname": "sqlglot.expressions.Expression.unalias", "modulename": "sqlglot.expressions", "qualname": "Expression.unalias", "kind": "function", "doc": "

Returns the inner expression if this is an Alias.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.unnest_operands": {"fullname": "sqlglot.expressions.Expression.unnest_operands", "modulename": "sqlglot.expressions", "qualname": "Expression.unnest_operands", "kind": "function", "doc": "

Returns unnested operands as a tuple.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.flatten": {"fullname": "sqlglot.expressions.Expression.flatten", "modulename": "sqlglot.expressions", "qualname": "Expression.flatten", "kind": "function", "doc": "

Returns a generator which yields child nodes who's parents are the same class.

\n\n

A AND B AND C -> [A, B, C]

\n", "signature": "(self, unnest=True):", "funcdef": "def"}, "sqlglot.expressions.Expression.sql": {"fullname": "sqlglot.expressions.Expression.sql", "modulename": "sqlglot.expressions", "qualname": "Expression.sql", "kind": "function", "doc": "

Returns SQL string representation of this tree.

\n\n
Arguments:
\n\n
    \n
  • dialect: the dialect of the output SQL string (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • opts: other sqlglot.generator.Generator options.
  • \n
\n\n
Returns:
\n\n
\n

The SQL string.

\n
\n", "signature": "(\tself,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> str:", "funcdef": "def"}, "sqlglot.expressions.Expression.transform": {"fullname": "sqlglot.expressions.Expression.transform", "modulename": "sqlglot.expressions", "qualname": "Expression.transform", "kind": "function", "doc": "

Recursively visits all tree nodes (excluding already transformed ones)\nand applies the given transformation function to each node.

\n\n
Arguments:
\n\n
    \n
  • fun (function): a function which takes a node as an argument and returns a\nnew transformed node or the same node without modifications. If the function\nreturns None, then the corresponding node will be removed from the syntax tree.
  • \n
  • copy (bool): if set to True a new tree instance is constructed, otherwise the tree is\nmodified in place.
  • \n
\n\n
Returns:
\n\n
\n

The transformed tree.

\n
\n", "signature": "(self, fun, *args, copy=True, **kwargs):", "funcdef": "def"}, "sqlglot.expressions.Expression.replace": {"fullname": "sqlglot.expressions.Expression.replace", "modulename": "sqlglot.expressions", "qualname": "Expression.replace", "kind": "function", "doc": "

Swap out this expression with a new expression.

\n\n

For example::

\n\n
>>> tree = Select().select(\"x\").from_(\"tbl\")\n>>> tree.find(Column).replace(Column(this=\"y\"))\n(COLUMN this: y)\n>>> tree.sql()\n'SELECT y FROM tbl'\n
\n\n
Arguments:
\n\n
    \n
  • expression (Expression|None): new node
  • \n
\n\n
Returns:
\n\n
\n

The new expression or expressions.

\n
\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.expressions.Expression.pop": {"fullname": "sqlglot.expressions.Expression.pop", "modulename": "sqlglot.expressions", "qualname": "Expression.pop", "kind": "function", "doc": "

Remove this expression from its AST.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.assert_is": {"fullname": "sqlglot.expressions.Expression.assert_is", "modulename": "sqlglot.expressions", "qualname": "Expression.assert_is", "kind": "function", "doc": "

Assert that this Expression is an instance of type_.

\n\n

If it is NOT an instance of type_, this raises an assertion error.\nOtherwise, this returns this expression.

\n\n
Examples:
\n\n
\n

This is useful for type security in chained expressions:

\n \n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT x from y").assert_is(Select).select("z").sql()\n'SELECT x, z FROM y'\n
\n
\n
\n", "signature": "(self, type_):", "funcdef": "def"}, "sqlglot.expressions.Expression.error_messages": {"fullname": "sqlglot.expressions.Expression.error_messages", "modulename": "sqlglot.expressions", "qualname": "Expression.error_messages", "kind": "function", "doc": "

Checks if this expression is valid (e.g. all mandatory args are set).

\n\n
Arguments:
\n\n
    \n
  • args: a sequence of values that were used to instantiate a Func expression. This is used\nto check that the provided arguments don't exceed the function argument limit.
  • \n
\n\n
Returns:
\n\n
\n

A list of error messages for all possible errors that were found.

\n
\n", "signature": "(self, args: Optional[Sequence] = None) -> List[str]:", "funcdef": "def"}, "sqlglot.expressions.Expression.dump": {"fullname": "sqlglot.expressions.Expression.dump", "modulename": "sqlglot.expressions", "qualname": "Expression.dump", "kind": "function", "doc": "

Dump this Expression to a JSON-serializable dict.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.load": {"fullname": "sqlglot.expressions.Expression.load", "modulename": "sqlglot.expressions", "qualname": "Expression.load", "kind": "function", "doc": "

Load a dict (as returned by Expression.dump) into an Expression instance.

\n", "signature": "(cls, obj):", "funcdef": "def"}, "sqlglot.expressions.Condition": {"fullname": "sqlglot.expressions.Condition", "modulename": "sqlglot.expressions", "qualname": "Condition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Condition.and_": {"fullname": "sqlglot.expressions.Condition.and_", "modulename": "sqlglot.expressions", "qualname": "Condition.and_", "kind": "function", "doc": "

AND this condition with one or multiple expressions.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").and_("y=1").sql()\n'x = 1 AND y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

And: the new condition.

\n
\n", "signature": "(self, *expressions, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Condition.or_": {"fullname": "sqlglot.expressions.Condition.or_", "modulename": "sqlglot.expressions", "qualname": "Condition.or_", "kind": "function", "doc": "

OR this condition with one or multiple expressions.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").or_("y=1").sql()\n'x = 1 OR y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Or: the new condition.

\n
\n", "signature": "(self, *expressions, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Condition.not_": {"fullname": "sqlglot.expressions.Condition.not_", "modulename": "sqlglot.expressions", "qualname": "Condition.not_", "kind": "function", "doc": "

Wrap this condition with NOT.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").not_().sql()\n'NOT x = 1'\n
\n
\n
\n\n
Returns:
\n\n
\n

Not: the new condition.

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Predicate": {"fullname": "sqlglot.expressions.Predicate", "modulename": "sqlglot.expressions", "qualname": "Predicate", "kind": "class", "doc": "

Relationships like x = y, x > 1, x >= y.

\n", "bases": "Condition"}, "sqlglot.expressions.DerivedTable": {"fullname": "sqlglot.expressions.DerivedTable", "modulename": "sqlglot.expressions", "qualname": "DerivedTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unionable": {"fullname": "sqlglot.expressions.Unionable", "modulename": "sqlglot.expressions", "qualname": "Unionable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unionable.union": {"fullname": "sqlglot.expressions.Unionable.union", "modulename": "sqlglot.expressions", "qualname": "Unionable.union", "kind": "function", "doc": "

Builds a UNION expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()\n'SELECT * FROM foo UNION SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the Union expression.

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Unionable.intersect": {"fullname": "sqlglot.expressions.Unionable.intersect", "modulename": "sqlglot.expressions", "qualname": "Unionable.intersect", "kind": "function", "doc": "

Builds an INTERSECT expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()\n'SELECT * FROM foo INTERSECT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Intersect: the Intersect expression

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Unionable.except_": {"fullname": "sqlglot.expressions.Unionable.except_", "modulename": "sqlglot.expressions", "qualname": "Unionable.except_", "kind": "function", "doc": "

Builds an EXCEPT expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()\n'SELECT * FROM foo EXCEPT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Except: the Except expression

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.UDTF": {"fullname": "sqlglot.expressions.UDTF", "modulename": "sqlglot.expressions", "qualname": "UDTF", "kind": "class", "doc": "

\n", "bases": "DerivedTable, Unionable"}, "sqlglot.expressions.Cache": {"fullname": "sqlglot.expressions.Cache", "modulename": "sqlglot.expressions", "qualname": "Cache", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Uncache": {"fullname": "sqlglot.expressions.Uncache", "modulename": "sqlglot.expressions", "qualname": "Uncache", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Create": {"fullname": "sqlglot.expressions.Create", "modulename": "sqlglot.expressions", "qualname": "Create", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Describe": {"fullname": "sqlglot.expressions.Describe", "modulename": "sqlglot.expressions", "qualname": "Describe", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Set": {"fullname": "sqlglot.expressions.Set", "modulename": "sqlglot.expressions", "qualname": "Set", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SetItem": {"fullname": "sqlglot.expressions.SetItem", "modulename": "sqlglot.expressions", "qualname": "SetItem", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Show": {"fullname": "sqlglot.expressions.Show", "modulename": "sqlglot.expressions", "qualname": "Show", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.UserDefinedFunction": {"fullname": "sqlglot.expressions.UserDefinedFunction", "modulename": "sqlglot.expressions", "qualname": "UserDefinedFunction", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.CharacterSet": {"fullname": "sqlglot.expressions.CharacterSet", "modulename": "sqlglot.expressions", "qualname": "CharacterSet", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.With": {"fullname": "sqlglot.expressions.With", "modulename": "sqlglot.expressions", "qualname": "With", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.WithinGroup": {"fullname": "sqlglot.expressions.WithinGroup", "modulename": "sqlglot.expressions", "qualname": "WithinGroup", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.CTE": {"fullname": "sqlglot.expressions.CTE", "modulename": "sqlglot.expressions", "qualname": "CTE", "kind": "class", "doc": "

\n", "bases": "DerivedTable"}, "sqlglot.expressions.TableAlias": {"fullname": "sqlglot.expressions.TableAlias", "modulename": "sqlglot.expressions", "qualname": "TableAlias", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.BitString": {"fullname": "sqlglot.expressions.BitString", "modulename": "sqlglot.expressions", "qualname": "BitString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.HexString": {"fullname": "sqlglot.expressions.HexString", "modulename": "sqlglot.expressions", "qualname": "HexString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.ByteString": {"fullname": "sqlglot.expressions.ByteString", "modulename": "sqlglot.expressions", "qualname": "ByteString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Column": {"fullname": "sqlglot.expressions.Column", "modulename": "sqlglot.expressions", "qualname": "Column", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Column.output_name": {"fullname": "sqlglot.expressions.Column.output_name", "modulename": "sqlglot.expressions", "qualname": "Column.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n", "annotation": ": str"}, "sqlglot.expressions.ColumnDef": {"fullname": "sqlglot.expressions.ColumnDef", "modulename": "sqlglot.expressions", "qualname": "ColumnDef", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AlterColumn": {"fullname": "sqlglot.expressions.AlterColumn", "modulename": "sqlglot.expressions", "qualname": "AlterColumn", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.RenameTable": {"fullname": "sqlglot.expressions.RenameTable", "modulename": "sqlglot.expressions", "qualname": "RenameTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SetTag": {"fullname": "sqlglot.expressions.SetTag", "modulename": "sqlglot.expressions", "qualname": "SetTag", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Comment": {"fullname": "sqlglot.expressions.Comment", "modulename": "sqlglot.expressions", "qualname": "Comment", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ColumnConstraint": {"fullname": "sqlglot.expressions.ColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "ColumnConstraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ColumnConstraintKind": {"fullname": "sqlglot.expressions.ColumnConstraintKind", "modulename": "sqlglot.expressions", "qualname": "ColumnConstraintKind", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AutoIncrementColumnConstraint": {"fullname": "sqlglot.expressions.AutoIncrementColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "AutoIncrementColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CaseSpecificColumnConstraint": {"fullname": "sqlglot.expressions.CaseSpecificColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CaseSpecificColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CharacterSetColumnConstraint": {"fullname": "sqlglot.expressions.CharacterSetColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CharacterSetColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CheckColumnConstraint": {"fullname": "sqlglot.expressions.CheckColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CheckColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CollateColumnConstraint": {"fullname": "sqlglot.expressions.CollateColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CollateColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CommentColumnConstraint": {"fullname": "sqlglot.expressions.CommentColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CommentColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CompressColumnConstraint": {"fullname": "sqlglot.expressions.CompressColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CompressColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.DateFormatColumnConstraint": {"fullname": "sqlglot.expressions.DateFormatColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "DateFormatColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.DefaultColumnConstraint": {"fullname": "sqlglot.expressions.DefaultColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "DefaultColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.EncodeColumnConstraint": {"fullname": "sqlglot.expressions.EncodeColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "EncodeColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.GeneratedAsIdentityColumnConstraint": {"fullname": "sqlglot.expressions.GeneratedAsIdentityColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "GeneratedAsIdentityColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.InlineLengthColumnConstraint": {"fullname": "sqlglot.expressions.InlineLengthColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "InlineLengthColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.NotNullColumnConstraint": {"fullname": "sqlglot.expressions.NotNullColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "NotNullColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.PrimaryKeyColumnConstraint": {"fullname": "sqlglot.expressions.PrimaryKeyColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "PrimaryKeyColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.TitleColumnConstraint": {"fullname": "sqlglot.expressions.TitleColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "TitleColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.UniqueColumnConstraint": {"fullname": "sqlglot.expressions.UniqueColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "UniqueColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.UppercaseColumnConstraint": {"fullname": "sqlglot.expressions.UppercaseColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "UppercaseColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.PathColumnConstraint": {"fullname": "sqlglot.expressions.PathColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "PathColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.Constraint": {"fullname": "sqlglot.expressions.Constraint", "modulename": "sqlglot.expressions", "qualname": "Constraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Delete": {"fullname": "sqlglot.expressions.Delete", "modulename": "sqlglot.expressions", "qualname": "Delete", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Drop": {"fullname": "sqlglot.expressions.Drop", "modulename": "sqlglot.expressions", "qualname": "Drop", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Filter": {"fullname": "sqlglot.expressions.Filter", "modulename": "sqlglot.expressions", "qualname": "Filter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Check": {"fullname": "sqlglot.expressions.Check", "modulename": "sqlglot.expressions", "qualname": "Check", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Directory": {"fullname": "sqlglot.expressions.Directory", "modulename": "sqlglot.expressions", "qualname": "Directory", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ForeignKey": {"fullname": "sqlglot.expressions.ForeignKey", "modulename": "sqlglot.expressions", "qualname": "ForeignKey", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.PrimaryKey": {"fullname": "sqlglot.expressions.PrimaryKey", "modulename": "sqlglot.expressions", "qualname": "PrimaryKey", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unique": {"fullname": "sqlglot.expressions.Unique", "modulename": "sqlglot.expressions", "qualname": "Unique", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Into": {"fullname": "sqlglot.expressions.Into", "modulename": "sqlglot.expressions", "qualname": "Into", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.From": {"fullname": "sqlglot.expressions.From", "modulename": "sqlglot.expressions", "qualname": "From", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Having": {"fullname": "sqlglot.expressions.Having", "modulename": "sqlglot.expressions", "qualname": "Having", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Hint": {"fullname": "sqlglot.expressions.Hint", "modulename": "sqlglot.expressions", "qualname": "Hint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.JoinHint": {"fullname": "sqlglot.expressions.JoinHint", "modulename": "sqlglot.expressions", "qualname": "JoinHint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Identifier": {"fullname": "sqlglot.expressions.Identifier", "modulename": "sqlglot.expressions", "qualname": "Identifier", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Identifier.output_name": {"fullname": "sqlglot.expressions.Identifier.output_name", "modulename": "sqlglot.expressions", "qualname": "Identifier.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Index": {"fullname": "sqlglot.expressions.Index", "modulename": "sqlglot.expressions", "qualname": "Index", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Insert": {"fullname": "sqlglot.expressions.Insert", "modulename": "sqlglot.expressions", "qualname": "Insert", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Returning": {"fullname": "sqlglot.expressions.Returning", "modulename": "sqlglot.expressions", "qualname": "Returning", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Introducer": {"fullname": "sqlglot.expressions.Introducer", "modulename": "sqlglot.expressions", "qualname": "Introducer", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.National": {"fullname": "sqlglot.expressions.National", "modulename": "sqlglot.expressions", "qualname": "National", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.LoadData": {"fullname": "sqlglot.expressions.LoadData", "modulename": "sqlglot.expressions", "qualname": "LoadData", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Partition": {"fullname": "sqlglot.expressions.Partition", "modulename": "sqlglot.expressions", "qualname": "Partition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Fetch": {"fullname": "sqlglot.expressions.Fetch", "modulename": "sqlglot.expressions", "qualname": "Fetch", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Group": {"fullname": "sqlglot.expressions.Group", "modulename": "sqlglot.expressions", "qualname": "Group", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Lambda": {"fullname": "sqlglot.expressions.Lambda", "modulename": "sqlglot.expressions", "qualname": "Lambda", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Limit": {"fullname": "sqlglot.expressions.Limit", "modulename": "sqlglot.expressions", "qualname": "Limit", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Literal": {"fullname": "sqlglot.expressions.Literal", "modulename": "sqlglot.expressions", "qualname": "Literal", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Literal.number": {"fullname": "sqlglot.expressions.Literal.number", "modulename": "sqlglot.expressions", "qualname": "Literal.number", "kind": "function", "doc": "

\n", "signature": "(cls, number) -> sqlglot.expressions.Literal:", "funcdef": "def"}, "sqlglot.expressions.Literal.string": {"fullname": "sqlglot.expressions.Literal.string", "modulename": "sqlglot.expressions", "qualname": "Literal.string", "kind": "function", "doc": "

\n", "signature": "(cls, string) -> sqlglot.expressions.Literal:", "funcdef": "def"}, "sqlglot.expressions.Literal.output_name": {"fullname": "sqlglot.expressions.Literal.output_name", "modulename": "sqlglot.expressions", "qualname": "Literal.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Join": {"fullname": "sqlglot.expressions.Join", "modulename": "sqlglot.expressions", "qualname": "Join", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Join.on": {"fullname": "sqlglot.expressions.Join.on", "modulename": "sqlglot.expressions", "qualname": "Join.on", "kind": "function", "doc": "

Append to or set the ON expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()\n'JOIN x ON y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Join: the modified join expression.

\n
\n", "signature": "(self, *expressions, append=True, dialect=None, copy=True, **opts):", "funcdef": "def"}, "sqlglot.expressions.Join.using": {"fullname": "sqlglot.expressions.Join.using", "modulename": "sqlglot.expressions", "qualname": "Join.using", "kind": "function", "doc": "

Append to or set the USING expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()\n'JOIN x USING (foo, bla)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, concatenate the new expressions to the existing \"using\" list.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Join: the modified join expression.

\n
\n", "signature": "(self, *expressions, append=True, dialect=None, copy=True, **opts):", "funcdef": "def"}, "sqlglot.expressions.Lateral": {"fullname": "sqlglot.expressions.Lateral", "modulename": "sqlglot.expressions", "qualname": "Lateral", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.MatchRecognize": {"fullname": "sqlglot.expressions.MatchRecognize", "modulename": "sqlglot.expressions", "qualname": "MatchRecognize", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Final": {"fullname": "sqlglot.expressions.Final", "modulename": "sqlglot.expressions", "qualname": "Final", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Offset": {"fullname": "sqlglot.expressions.Offset", "modulename": "sqlglot.expressions", "qualname": "Offset", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Order": {"fullname": "sqlglot.expressions.Order", "modulename": "sqlglot.expressions", "qualname": "Order", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Cluster": {"fullname": "sqlglot.expressions.Cluster", "modulename": "sqlglot.expressions", "qualname": "Cluster", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Distribute": {"fullname": "sqlglot.expressions.Distribute", "modulename": "sqlglot.expressions", "qualname": "Distribute", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Sort": {"fullname": "sqlglot.expressions.Sort", "modulename": "sqlglot.expressions", "qualname": "Sort", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Ordered": {"fullname": "sqlglot.expressions.Ordered", "modulename": "sqlglot.expressions", "qualname": "Ordered", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Property": {"fullname": "sqlglot.expressions.Property", "modulename": "sqlglot.expressions", "qualname": "Property", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AfterJournalProperty": {"fullname": "sqlglot.expressions.AfterJournalProperty", "modulename": "sqlglot.expressions", "qualname": "AfterJournalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.AlgorithmProperty": {"fullname": "sqlglot.expressions.AlgorithmProperty", "modulename": "sqlglot.expressions", "qualname": "AlgorithmProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.AutoIncrementProperty": {"fullname": "sqlglot.expressions.AutoIncrementProperty", "modulename": "sqlglot.expressions", "qualname": "AutoIncrementProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.BlockCompressionProperty": {"fullname": "sqlglot.expressions.BlockCompressionProperty", "modulename": "sqlglot.expressions", "qualname": "BlockCompressionProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.CharacterSetProperty": {"fullname": "sqlglot.expressions.CharacterSetProperty", "modulename": "sqlglot.expressions", "qualname": "CharacterSetProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ChecksumProperty": {"fullname": "sqlglot.expressions.ChecksumProperty", "modulename": "sqlglot.expressions", "qualname": "ChecksumProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.CollateProperty": {"fullname": "sqlglot.expressions.CollateProperty", "modulename": "sqlglot.expressions", "qualname": "CollateProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DataBlocksizeProperty": {"fullname": "sqlglot.expressions.DataBlocksizeProperty", "modulename": "sqlglot.expressions", "qualname": "DataBlocksizeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DefinerProperty": {"fullname": "sqlglot.expressions.DefinerProperty", "modulename": "sqlglot.expressions", "qualname": "DefinerProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DistKeyProperty": {"fullname": "sqlglot.expressions.DistKeyProperty", "modulename": "sqlglot.expressions", "qualname": "DistKeyProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DistStyleProperty": {"fullname": "sqlglot.expressions.DistStyleProperty", "modulename": "sqlglot.expressions", "qualname": "DistStyleProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.EngineProperty": {"fullname": "sqlglot.expressions.EngineProperty", "modulename": "sqlglot.expressions", "qualname": "EngineProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ExecuteAsProperty": {"fullname": "sqlglot.expressions.ExecuteAsProperty", "modulename": "sqlglot.expressions", "qualname": "ExecuteAsProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ExternalProperty": {"fullname": "sqlglot.expressions.ExternalProperty", "modulename": "sqlglot.expressions", "qualname": "ExternalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FallbackProperty": {"fullname": "sqlglot.expressions.FallbackProperty", "modulename": "sqlglot.expressions", "qualname": "FallbackProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FileFormatProperty": {"fullname": "sqlglot.expressions.FileFormatProperty", "modulename": "sqlglot.expressions", "qualname": "FileFormatProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FreespaceProperty": {"fullname": "sqlglot.expressions.FreespaceProperty", "modulename": "sqlglot.expressions", "qualname": "FreespaceProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.IsolatedLoadingProperty": {"fullname": "sqlglot.expressions.IsolatedLoadingProperty", "modulename": "sqlglot.expressions", "qualname": "IsolatedLoadingProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.JournalProperty": {"fullname": "sqlglot.expressions.JournalProperty", "modulename": "sqlglot.expressions", "qualname": "JournalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LanguageProperty": {"fullname": "sqlglot.expressions.LanguageProperty", "modulename": "sqlglot.expressions", "qualname": "LanguageProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LikeProperty": {"fullname": "sqlglot.expressions.LikeProperty", "modulename": "sqlglot.expressions", "qualname": "LikeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LocationProperty": {"fullname": "sqlglot.expressions.LocationProperty", "modulename": "sqlglot.expressions", "qualname": "LocationProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LockingProperty": {"fullname": "sqlglot.expressions.LockingProperty", "modulename": "sqlglot.expressions", "qualname": "LockingProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LogProperty": {"fullname": "sqlglot.expressions.LogProperty", "modulename": "sqlglot.expressions", "qualname": "LogProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.MaterializedProperty": {"fullname": "sqlglot.expressions.MaterializedProperty", "modulename": "sqlglot.expressions", "qualname": "MaterializedProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.MergeBlockRatioProperty": {"fullname": "sqlglot.expressions.MergeBlockRatioProperty", "modulename": "sqlglot.expressions", "qualname": "MergeBlockRatioProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.NoPrimaryIndexProperty": {"fullname": "sqlglot.expressions.NoPrimaryIndexProperty", "modulename": "sqlglot.expressions", "qualname": "NoPrimaryIndexProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.OnCommitProperty": {"fullname": "sqlglot.expressions.OnCommitProperty", "modulename": "sqlglot.expressions", "qualname": "OnCommitProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.PartitionedByProperty": {"fullname": "sqlglot.expressions.PartitionedByProperty", "modulename": "sqlglot.expressions", "qualname": "PartitionedByProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ReturnsProperty": {"fullname": "sqlglot.expressions.ReturnsProperty", "modulename": "sqlglot.expressions", "qualname": "ReturnsProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.RowFormatDelimitedProperty": {"fullname": "sqlglot.expressions.RowFormatDelimitedProperty", "modulename": "sqlglot.expressions", "qualname": "RowFormatDelimitedProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.RowFormatSerdeProperty": {"fullname": "sqlglot.expressions.RowFormatSerdeProperty", "modulename": "sqlglot.expressions", "qualname": "RowFormatSerdeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SchemaCommentProperty": {"fullname": "sqlglot.expressions.SchemaCommentProperty", "modulename": "sqlglot.expressions", "qualname": "SchemaCommentProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SerdeProperties": {"fullname": "sqlglot.expressions.SerdeProperties", "modulename": "sqlglot.expressions", "qualname": "SerdeProperties", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SetProperty": {"fullname": "sqlglot.expressions.SetProperty", "modulename": "sqlglot.expressions", "qualname": "SetProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SortKeyProperty": {"fullname": "sqlglot.expressions.SortKeyProperty", "modulename": "sqlglot.expressions", "qualname": "SortKeyProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SqlSecurityProperty": {"fullname": "sqlglot.expressions.SqlSecurityProperty", "modulename": "sqlglot.expressions", "qualname": "SqlSecurityProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TableFormatProperty": {"fullname": "sqlglot.expressions.TableFormatProperty", "modulename": "sqlglot.expressions", "qualname": "TableFormatProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TemporaryProperty": {"fullname": "sqlglot.expressions.TemporaryProperty", "modulename": "sqlglot.expressions", "qualname": "TemporaryProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TransientProperty": {"fullname": "sqlglot.expressions.TransientProperty", "modulename": "sqlglot.expressions", "qualname": "TransientProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.VolatilityProperty": {"fullname": "sqlglot.expressions.VolatilityProperty", "modulename": "sqlglot.expressions", "qualname": "VolatilityProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.WithDataProperty": {"fullname": "sqlglot.expressions.WithDataProperty", "modulename": "sqlglot.expressions", "qualname": "WithDataProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.WithJournalTableProperty": {"fullname": "sqlglot.expressions.WithJournalTableProperty", "modulename": "sqlglot.expressions", "qualname": "WithJournalTableProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.Properties": {"fullname": "sqlglot.expressions.Properties", "modulename": "sqlglot.expressions", "qualname": "Properties", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Properties.Location": {"fullname": "sqlglot.expressions.Properties.Location", "modulename": "sqlglot.expressions", "qualname": "Properties.Location", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.expressions.Properties.Location.POST_CREATE": {"fullname": "sqlglot.expressions.Properties.Location.POST_CREATE", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_CREATE", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_CREATE: 'POST_CREATE'>"}, "sqlglot.expressions.Properties.Location.POST_NAME": {"fullname": "sqlglot.expressions.Properties.Location.POST_NAME", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_NAME", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_NAME: 'POST_NAME'>"}, "sqlglot.expressions.Properties.Location.POST_SCHEMA": {"fullname": "sqlglot.expressions.Properties.Location.POST_SCHEMA", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_SCHEMA", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_SCHEMA: 'POST_SCHEMA'>"}, "sqlglot.expressions.Properties.Location.POST_WITH": {"fullname": "sqlglot.expressions.Properties.Location.POST_WITH", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_WITH", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_WITH: 'POST_WITH'>"}, "sqlglot.expressions.Properties.Location.POST_ALIAS": {"fullname": "sqlglot.expressions.Properties.Location.POST_ALIAS", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_ALIAS", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_ALIAS: 'POST_ALIAS'>"}, "sqlglot.expressions.Properties.Location.POST_EXPRESSION": {"fullname": "sqlglot.expressions.Properties.Location.POST_EXPRESSION", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_EXPRESSION", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_EXPRESSION: 'POST_EXPRESSION'>"}, "sqlglot.expressions.Properties.Location.POST_INDEX": {"fullname": "sqlglot.expressions.Properties.Location.POST_INDEX", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_INDEX", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_INDEX: 'POST_INDEX'>"}, "sqlglot.expressions.Properties.Location.UNSUPPORTED": {"fullname": "sqlglot.expressions.Properties.Location.UNSUPPORTED", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.UNSUPPORTED", "kind": "variable", "doc": "

\n", "default_value": "<Location.UNSUPPORTED: 'UNSUPPORTED'>"}, "sqlglot.expressions.Properties.from_dict": {"fullname": "sqlglot.expressions.Properties.from_dict", "modulename": "sqlglot.expressions", "qualname": "Properties.from_dict", "kind": "function", "doc": "

\n", "signature": "(cls, properties_dict) -> sqlglot.expressions.Properties:", "funcdef": "def"}, "sqlglot.expressions.Qualify": {"fullname": "sqlglot.expressions.Qualify", "modulename": "sqlglot.expressions", "qualname": "Qualify", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Return": {"fullname": "sqlglot.expressions.Return", "modulename": "sqlglot.expressions", "qualname": "Return", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Reference": {"fullname": "sqlglot.expressions.Reference", "modulename": "sqlglot.expressions", "qualname": "Reference", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Tuple": {"fullname": "sqlglot.expressions.Tuple", "modulename": "sqlglot.expressions", "qualname": "Tuple", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Subqueryable": {"fullname": "sqlglot.expressions.Subqueryable", "modulename": "sqlglot.expressions", "qualname": "Subqueryable", "kind": "class", "doc": "

\n", "bases": "Unionable"}, "sqlglot.expressions.Subqueryable.subquery": {"fullname": "sqlglot.expressions.Subqueryable.subquery", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.subquery", "kind": "function", "doc": "

Convert this expression to an aliased expression that can be used as a Subquery.

\n\n
Example:
\n\n
\n
\n
>>> subquery = Select().select("x").from_("tbl").subquery()\n>>> Select().select("x").from_(subquery).sql()\n'SELECT x FROM (SELECT x FROM tbl)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • alias (str | Identifier): an optional alias for the subquery
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

Alias: the subquery

\n
\n", "signature": "(self, alias=None, copy=True) -> sqlglot.expressions.Subquery:", "funcdef": "def"}, "sqlglot.expressions.Subqueryable.limit": {"fullname": "sqlglot.expressions.Subqueryable.limit", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.limit", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Subqueryable.with_": {"fullname": "sqlglot.expressions.Subqueryable.with_", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.with_", "kind": "function", "doc": "

Append to or set the common table expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()\n'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • alias (str | Expression): the SQL code string to parse as the table name.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • as_ (str | Expression): the SQL code string to parse as the table expression.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • recursive (bool): set the RECURSIVE part of the expression. Defaults to False.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\talias,\tas_,\trecursive=None,\tappend=True,\tdialect=None,\tcopy=True,\t**opts):", "funcdef": "def"}, "sqlglot.expressions.Table": {"fullname": "sqlglot.expressions.Table", "modulename": "sqlglot.expressions", "qualname": "Table", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SystemTime": {"fullname": "sqlglot.expressions.SystemTime", "modulename": "sqlglot.expressions", "qualname": "SystemTime", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Union": {"fullname": "sqlglot.expressions.Union", "modulename": "sqlglot.expressions", "qualname": "Union", "kind": "class", "doc": "

\n", "bases": "Subqueryable"}, "sqlglot.expressions.Union.limit": {"fullname": "sqlglot.expressions.Union.limit", "modulename": "sqlglot.expressions", "qualname": "Union.limit", "kind": "function", "doc": "

Set the LIMIT expression.

\n\n
Example:
\n\n
\n
\n
>>> select("1").union(select("1")).limit(1).sql()\n'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Limit instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Limit.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: The limited subqueryable.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Union.select": {"fullname": "sqlglot.expressions.Union.select", "modulename": "sqlglot.expressions", "qualname": "Union.select", "kind": "function", "doc": "

Append to or set the SELECT of the union recursively.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("select a from x union select a from y union select a from z").select("b").sql()\n'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append: if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: str | sqlglot.expressions.Expression,\tappend: bool = True,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Union:", "funcdef": "def"}, "sqlglot.expressions.Union.is_star": {"fullname": "sqlglot.expressions.Union.is_star", "modulename": "sqlglot.expressions", "qualname": "Union.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Except": {"fullname": "sqlglot.expressions.Except", "modulename": "sqlglot.expressions", "qualname": "Except", "kind": "class", "doc": "

\n", "bases": "Union"}, "sqlglot.expressions.Intersect": {"fullname": "sqlglot.expressions.Intersect", "modulename": "sqlglot.expressions", "qualname": "Intersect", "kind": "class", "doc": "

\n", "bases": "Union"}, "sqlglot.expressions.Unnest": {"fullname": "sqlglot.expressions.Unnest", "modulename": "sqlglot.expressions", "qualname": "Unnest", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.Update": {"fullname": "sqlglot.expressions.Update", "modulename": "sqlglot.expressions", "qualname": "Update", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Values": {"fullname": "sqlglot.expressions.Values", "modulename": "sqlglot.expressions", "qualname": "Values", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.Var": {"fullname": "sqlglot.expressions.Var", "modulename": "sqlglot.expressions", "qualname": "Var", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Schema": {"fullname": "sqlglot.expressions.Schema", "modulename": "sqlglot.expressions", "qualname": "Schema", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Lock": {"fullname": "sqlglot.expressions.Lock", "modulename": "sqlglot.expressions", "qualname": "Lock", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Select": {"fullname": "sqlglot.expressions.Select", "modulename": "sqlglot.expressions", "qualname": "Select", "kind": "class", "doc": "

\n", "bases": "Subqueryable"}, "sqlglot.expressions.Select.from_": {"fullname": "sqlglot.expressions.Select.from_", "modulename": "sqlglot.expressions", "qualname": "Select.from_", "kind": "function", "doc": "

Set the FROM expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").sql()\n'SELECT x FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a From instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a From.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the From expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.group_by": {"fullname": "sqlglot.expressions.Select.group_by", "modulename": "sqlglot.expressions", "qualname": "Select.group_by", "kind": "function", "doc": "

Set the GROUP BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()\n'SELECT x, COUNT(1) FROM tbl GROUP BY x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Group.\nIf nothing is passed in then a group by is not applied to the expression
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Group expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.order_by": {"fullname": "sqlglot.expressions.Select.order_by", "modulename": "sqlglot.expressions", "qualname": "Select.order_by", "kind": "function", "doc": "

Set the ORDER BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").order_by("x DESC").sql()\n'SELECT x FROM tbl ORDER BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Order.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.sort_by": {"fullname": "sqlglot.expressions.Select.sort_by", "modulename": "sqlglot.expressions", "qualname": "Select.sort_by", "kind": "function", "doc": "

Set the SORT BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").sort_by("x DESC").sql()\n'SELECT x FROM tbl SORT BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a SORT.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.cluster_by": {"fullname": "sqlglot.expressions.Select.cluster_by", "modulename": "sqlglot.expressions", "qualname": "Select.cluster_by", "kind": "function", "doc": "

Set the CLUSTER BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()\n'SELECT x FROM tbl CLUSTER BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Cluster.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.limit": {"fullname": "sqlglot.expressions.Select.limit", "modulename": "sqlglot.expressions", "qualname": "Select.limit", "kind": "function", "doc": "

Set the LIMIT expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").limit(10).sql()\n'SELECT x FROM tbl LIMIT 10'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Limit instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Limit.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.offset": {"fullname": "sqlglot.expressions.Select.offset", "modulename": "sqlglot.expressions", "qualname": "Select.offset", "kind": "function", "doc": "

Set the OFFSET expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").offset(10).sql()\n'SELECT x FROM tbl OFFSET 10'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Offset instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Offset.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.select": {"fullname": "sqlglot.expressions.Select.select", "modulename": "sqlglot.expressions", "qualname": "Select.select", "kind": "function", "doc": "

Append to or set the SELECT expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x", "y").sql()\n'SELECT x, y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append: if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: str | sqlglot.expressions.Expression,\tappend: bool = True,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.lateral": {"fullname": "sqlglot.expressions.Select.lateral", "modulename": "sqlglot.expressions", "qualname": "Select.lateral", "kind": "function", "doc": "

Append to or set the LATERAL expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()\n'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.join": {"fullname": "sqlglot.expressions.Select.join", "modulename": "sqlglot.expressions", "qualname": "Select.join", "kind": "function", "doc": "

Append to or set the JOIN expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()\n'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'\n
\n
\n \n
\n
>>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()\n'SELECT 1 FROM a JOIN b USING (x, y, z)'\n
\n
\n \n

Use join_type to change the type of join:

\n \n
\n
>>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()\n'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • on (str | Expression): optionally specify the join \"on\" criteria as a SQL string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • using (str | Expression): optionally specify the join \"using\" criteria as a SQL string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • join_type (str): If set, alter the parsed join type
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\ton=None,\tusing=None,\tappend=True,\tjoin_type=None,\tjoin_alias=None,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.where": {"fullname": "sqlglot.expressions.Select.where", "modulename": "sqlglot.expressions", "qualname": "Select.where", "kind": "function", "doc": "

Append to or set the WHERE expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()\n"SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.having": {"fullname": "sqlglot.expressions.Select.having", "modulename": "sqlglot.expressions", "qualname": "Select.having", "kind": "function", "doc": "

Append to or set the HAVING expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()\n'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.window": {"fullname": "sqlglot.expressions.Select.window", "modulename": "sqlglot.expressions", "qualname": "Select.window", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.qualify": {"fullname": "sqlglot.expressions.Select.qualify", "modulename": "sqlglot.expressions", "qualname": "Select.qualify", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.distinct": {"fullname": "sqlglot.expressions.Select.distinct", "modulename": "sqlglot.expressions", "qualname": "Select.distinct", "kind": "function", "doc": "

Set the OFFSET expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").distinct().sql()\n'SELECT DISTINCT x FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • distinct (bool): whether the Select should be distinct
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(self, distinct=True, copy=True) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.ctas": {"fullname": "sqlglot.expressions.Select.ctas", "modulename": "sqlglot.expressions", "qualname": "Select.ctas", "kind": "function", "doc": "

Convert this expression to a CREATE TABLE AS statement.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("*").from_("tbl").ctas("x").sql()\n'CREATE TABLE x AS SELECT * FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • table (str | Expression): the SQL code string to parse as the table name.\nIf another Expression instance is passed, it will be used as-is.
  • \n
  • properties (dict): an optional mapping of table properties
  • \n
  • dialect (str): the dialect used to parse the input table.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input table.
  • \n
\n\n
Returns:
\n\n
\n

Create: the CREATE TABLE AS expression

\n
\n", "signature": "(\tself,\ttable,\tproperties=None,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Create:", "funcdef": "def"}, "sqlglot.expressions.Select.lock": {"fullname": "sqlglot.expressions.Select.lock", "modulename": "sqlglot.expressions", "qualname": "Select.lock", "kind": "function", "doc": "

Set the locking read mode for this expression.

\n\n
Examples:
\n\n
\n
\n
>>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")\n"SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"\n
\n
\n \n
\n
>>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")\n"SELECT x FROM tbl WHERE x = 'a' FOR SHARE"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • update: if True, the locking type will be FOR UPDATE, else it will be FOR SHARE.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

The modified expression.

\n
\n", "signature": "(\tself,\tupdate: bool = True,\tcopy: bool = True) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.is_star": {"fullname": "sqlglot.expressions.Select.is_star", "modulename": "sqlglot.expressions", "qualname": "Select.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Subquery": {"fullname": "sqlglot.expressions.Subquery", "modulename": "sqlglot.expressions", "qualname": "Subquery", "kind": "class", "doc": "

\n", "bases": "DerivedTable, Unionable"}, "sqlglot.expressions.Subquery.unnest": {"fullname": "sqlglot.expressions.Subquery.unnest", "modulename": "sqlglot.expressions", "qualname": "Subquery.unnest", "kind": "function", "doc": "

Returns the first non subquery.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Subquery.is_star": {"fullname": "sqlglot.expressions.Subquery.is_star", "modulename": "sqlglot.expressions", "qualname": "Subquery.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Subquery.output_name": {"fullname": "sqlglot.expressions.Subquery.output_name", "modulename": "sqlglot.expressions", "qualname": "Subquery.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.TableSample": {"fullname": "sqlglot.expressions.TableSample", "modulename": "sqlglot.expressions", "qualname": "TableSample", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Tag": {"fullname": "sqlglot.expressions.Tag", "modulename": "sqlglot.expressions", "qualname": "Tag", "kind": "class", "doc": "

Tags are used for generating arbitrary sql like SELECT x.

\n", "bases": "Expression"}, "sqlglot.expressions.Pivot": {"fullname": "sqlglot.expressions.Pivot", "modulename": "sqlglot.expressions", "qualname": "Pivot", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Window": {"fullname": "sqlglot.expressions.Window", "modulename": "sqlglot.expressions", "qualname": "Window", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.WindowSpec": {"fullname": "sqlglot.expressions.WindowSpec", "modulename": "sqlglot.expressions", "qualname": "WindowSpec", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Where": {"fullname": "sqlglot.expressions.Where", "modulename": "sqlglot.expressions", "qualname": "Where", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Star": {"fullname": "sqlglot.expressions.Star", "modulename": "sqlglot.expressions", "qualname": "Star", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Star.output_name": {"fullname": "sqlglot.expressions.Star.output_name", "modulename": "sqlglot.expressions", "qualname": "Star.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Parameter": {"fullname": "sqlglot.expressions.Parameter", "modulename": "sqlglot.expressions", "qualname": "Parameter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SessionParameter": {"fullname": "sqlglot.expressions.SessionParameter", "modulename": "sqlglot.expressions", "qualname": "SessionParameter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Placeholder": {"fullname": "sqlglot.expressions.Placeholder", "modulename": "sqlglot.expressions", "qualname": "Placeholder", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Null": {"fullname": "sqlglot.expressions.Null", "modulename": "sqlglot.expressions", "qualname": "Null", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Boolean": {"fullname": "sqlglot.expressions.Boolean", "modulename": "sqlglot.expressions", "qualname": "Boolean", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.DataType": {"fullname": "sqlglot.expressions.DataType", "modulename": "sqlglot.expressions", "qualname": "DataType", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.DataType.Type": {"fullname": "sqlglot.expressions.DataType.Type", "modulename": "sqlglot.expressions", "qualname": "DataType.Type", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.expressions.DataType.Type.CHAR": {"fullname": "sqlglot.expressions.DataType.Type.CHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.CHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.CHAR: 'CHAR'>"}, "sqlglot.expressions.DataType.Type.NCHAR": {"fullname": "sqlglot.expressions.DataType.Type.NCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.NCHAR: 'NCHAR'>"}, "sqlglot.expressions.DataType.Type.VARCHAR": {"fullname": "sqlglot.expressions.DataType.Type.VARCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.VARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.VARCHAR: 'VARCHAR'>"}, "sqlglot.expressions.DataType.Type.NVARCHAR": {"fullname": "sqlglot.expressions.DataType.Type.NVARCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NVARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.NVARCHAR: 'NVARCHAR'>"}, "sqlglot.expressions.DataType.Type.TEXT": {"fullname": "sqlglot.expressions.DataType.Type.TEXT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TEXT", "kind": "variable", "doc": "

\n", "default_value": "<Type.TEXT: 'TEXT'>"}, "sqlglot.expressions.DataType.Type.MEDIUMTEXT": {"fullname": "sqlglot.expressions.DataType.Type.MEDIUMTEXT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MEDIUMTEXT", "kind": "variable", "doc": "

\n", "default_value": "<Type.MEDIUMTEXT: 'MEDIUMTEXT'>"}, "sqlglot.expressions.DataType.Type.LONGTEXT": {"fullname": "sqlglot.expressions.DataType.Type.LONGTEXT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.LONGTEXT", "kind": "variable", "doc": "

\n", "default_value": "<Type.LONGTEXT: 'LONGTEXT'>"}, "sqlglot.expressions.DataType.Type.MEDIUMBLOB": {"fullname": "sqlglot.expressions.DataType.Type.MEDIUMBLOB", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MEDIUMBLOB", "kind": "variable", "doc": "

\n", "default_value": "<Type.MEDIUMBLOB: 'MEDIUMBLOB'>"}, "sqlglot.expressions.DataType.Type.LONGBLOB": {"fullname": "sqlglot.expressions.DataType.Type.LONGBLOB", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.LONGBLOB", "kind": "variable", "doc": "

\n", "default_value": "<Type.LONGBLOB: 'LONGBLOB'>"}, "sqlglot.expressions.DataType.Type.BINARY": {"fullname": "sqlglot.expressions.DataType.Type.BINARY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BINARY", "kind": "variable", "doc": "

\n", "default_value": "<Type.BINARY: 'BINARY'>"}, "sqlglot.expressions.DataType.Type.VARBINARY": {"fullname": "sqlglot.expressions.DataType.Type.VARBINARY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.VARBINARY", "kind": "variable", "doc": "

\n", "default_value": "<Type.VARBINARY: 'VARBINARY'>"}, "sqlglot.expressions.DataType.Type.INT": {"fullname": "sqlglot.expressions.DataType.Type.INT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.INT", "kind": "variable", "doc": "

\n", "default_value": "<Type.INT: 'INT'>"}, "sqlglot.expressions.DataType.Type.TINYINT": {"fullname": "sqlglot.expressions.DataType.Type.TINYINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TINYINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.TINYINT: 'TINYINT'>"}, "sqlglot.expressions.DataType.Type.SMALLINT": {"fullname": "sqlglot.expressions.DataType.Type.SMALLINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SMALLINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.SMALLINT: 'SMALLINT'>"}, "sqlglot.expressions.DataType.Type.BIGINT": {"fullname": "sqlglot.expressions.DataType.Type.BIGINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BIGINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.BIGINT: 'BIGINT'>"}, "sqlglot.expressions.DataType.Type.FLOAT": {"fullname": "sqlglot.expressions.DataType.Type.FLOAT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.FLOAT", "kind": "variable", "doc": "

\n", "default_value": "<Type.FLOAT: 'FLOAT'>"}, "sqlglot.expressions.DataType.Type.DOUBLE": {"fullname": "sqlglot.expressions.DataType.Type.DOUBLE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DOUBLE", "kind": "variable", "doc": "

\n", "default_value": "<Type.DOUBLE: 'DOUBLE'>"}, "sqlglot.expressions.DataType.Type.DECIMAL": {"fullname": "sqlglot.expressions.DataType.Type.DECIMAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DECIMAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.DECIMAL: 'DECIMAL'>"}, "sqlglot.expressions.DataType.Type.BOOLEAN": {"fullname": "sqlglot.expressions.DataType.Type.BOOLEAN", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BOOLEAN", "kind": "variable", "doc": "

\n", "default_value": "<Type.BOOLEAN: 'BOOLEAN'>"}, "sqlglot.expressions.DataType.Type.JSON": {"fullname": "sqlglot.expressions.DataType.Type.JSON", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.JSON", "kind": "variable", "doc": "

\n", "default_value": "<Type.JSON: 'JSON'>"}, "sqlglot.expressions.DataType.Type.JSONB": {"fullname": "sqlglot.expressions.DataType.Type.JSONB", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.JSONB", "kind": "variable", "doc": "

\n", "default_value": "<Type.JSONB: 'JSONB'>"}, "sqlglot.expressions.DataType.Type.INTERVAL": {"fullname": "sqlglot.expressions.DataType.Type.INTERVAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.INTERVAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.INTERVAL: 'INTERVAL'>"}, "sqlglot.expressions.DataType.Type.TIME": {"fullname": "sqlglot.expressions.DataType.Type.TIME", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIME", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIME: 'TIME'>"}, "sqlglot.expressions.DataType.Type.TIMESTAMP": {"fullname": "sqlglot.expressions.DataType.Type.TIMESTAMP", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIMESTAMP", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIMESTAMP: 'TIMESTAMP'>"}, "sqlglot.expressions.DataType.Type.TIMESTAMPTZ": {"fullname": "sqlglot.expressions.DataType.Type.TIMESTAMPTZ", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIMESTAMPTZ", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>"}, "sqlglot.expressions.DataType.Type.TIMESTAMPLTZ": {"fullname": "sqlglot.expressions.DataType.Type.TIMESTAMPLTZ", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIMESTAMPLTZ", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>"}, "sqlglot.expressions.DataType.Type.DATE": {"fullname": "sqlglot.expressions.DataType.Type.DATE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DATE", "kind": "variable", "doc": "

\n", "default_value": "<Type.DATE: 'DATE'>"}, "sqlglot.expressions.DataType.Type.DATETIME": {"fullname": "sqlglot.expressions.DataType.Type.DATETIME", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DATETIME", "kind": "variable", "doc": "

\n", "default_value": "<Type.DATETIME: 'DATETIME'>"}, "sqlglot.expressions.DataType.Type.ARRAY": {"fullname": "sqlglot.expressions.DataType.Type.ARRAY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.ARRAY", "kind": "variable", "doc": "

\n", "default_value": "<Type.ARRAY: 'ARRAY'>"}, "sqlglot.expressions.DataType.Type.MAP": {"fullname": "sqlglot.expressions.DataType.Type.MAP", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MAP", "kind": "variable", "doc": "

\n", "default_value": "<Type.MAP: 'MAP'>"}, "sqlglot.expressions.DataType.Type.UUID": {"fullname": "sqlglot.expressions.DataType.Type.UUID", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UUID", "kind": "variable", "doc": "

\n", "default_value": "<Type.UUID: 'UUID'>"}, "sqlglot.expressions.DataType.Type.GEOGRAPHY": {"fullname": "sqlglot.expressions.DataType.Type.GEOGRAPHY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.GEOGRAPHY", "kind": "variable", "doc": "

\n", "default_value": "<Type.GEOGRAPHY: 'GEOGRAPHY'>"}, "sqlglot.expressions.DataType.Type.GEOMETRY": {"fullname": "sqlglot.expressions.DataType.Type.GEOMETRY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.GEOMETRY", "kind": "variable", "doc": "

\n", "default_value": "<Type.GEOMETRY: 'GEOMETRY'>"}, "sqlglot.expressions.DataType.Type.STRUCT": {"fullname": "sqlglot.expressions.DataType.Type.STRUCT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.STRUCT", "kind": "variable", "doc": "

\n", "default_value": "<Type.STRUCT: 'STRUCT'>"}, "sqlglot.expressions.DataType.Type.NULLABLE": {"fullname": "sqlglot.expressions.DataType.Type.NULLABLE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NULLABLE", "kind": "variable", "doc": "

\n", "default_value": "<Type.NULLABLE: 'NULLABLE'>"}, "sqlglot.expressions.DataType.Type.HLLSKETCH": {"fullname": "sqlglot.expressions.DataType.Type.HLLSKETCH", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.HLLSKETCH", "kind": "variable", "doc": "

\n", "default_value": "<Type.HLLSKETCH: 'HLLSKETCH'>"}, "sqlglot.expressions.DataType.Type.HSTORE": {"fullname": "sqlglot.expressions.DataType.Type.HSTORE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.HSTORE", "kind": "variable", "doc": "

\n", "default_value": "<Type.HSTORE: 'HSTORE'>"}, "sqlglot.expressions.DataType.Type.SUPER": {"fullname": "sqlglot.expressions.DataType.Type.SUPER", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SUPER", "kind": "variable", "doc": "

\n", "default_value": "<Type.SUPER: 'SUPER'>"}, "sqlglot.expressions.DataType.Type.SERIAL": {"fullname": "sqlglot.expressions.DataType.Type.SERIAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SERIAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.SERIAL: 'SERIAL'>"}, "sqlglot.expressions.DataType.Type.SMALLSERIAL": {"fullname": "sqlglot.expressions.DataType.Type.SMALLSERIAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SMALLSERIAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.SMALLSERIAL: 'SMALLSERIAL'>"}, "sqlglot.expressions.DataType.Type.BIGSERIAL": {"fullname": "sqlglot.expressions.DataType.Type.BIGSERIAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BIGSERIAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.BIGSERIAL: 'BIGSERIAL'>"}, "sqlglot.expressions.DataType.Type.XML": {"fullname": "sqlglot.expressions.DataType.Type.XML", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.XML", "kind": "variable", "doc": "

\n", "default_value": "<Type.XML: 'XML'>"}, "sqlglot.expressions.DataType.Type.UNIQUEIDENTIFIER": {"fullname": "sqlglot.expressions.DataType.Type.UNIQUEIDENTIFIER", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UNIQUEIDENTIFIER", "kind": "variable", "doc": "

\n", "default_value": "<Type.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>"}, "sqlglot.expressions.DataType.Type.MONEY": {"fullname": "sqlglot.expressions.DataType.Type.MONEY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MONEY", "kind": "variable", "doc": "

\n", "default_value": "<Type.MONEY: 'MONEY'>"}, "sqlglot.expressions.DataType.Type.SMALLMONEY": {"fullname": "sqlglot.expressions.DataType.Type.SMALLMONEY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SMALLMONEY", "kind": "variable", "doc": "

\n", "default_value": "<Type.SMALLMONEY: 'SMALLMONEY'>"}, "sqlglot.expressions.DataType.Type.ROWVERSION": {"fullname": "sqlglot.expressions.DataType.Type.ROWVERSION", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.ROWVERSION", "kind": "variable", "doc": "

\n", "default_value": "<Type.ROWVERSION: 'ROWVERSION'>"}, "sqlglot.expressions.DataType.Type.IMAGE": {"fullname": "sqlglot.expressions.DataType.Type.IMAGE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.IMAGE", "kind": "variable", "doc": "

\n", "default_value": "<Type.IMAGE: 'IMAGE'>"}, "sqlglot.expressions.DataType.Type.VARIANT": {"fullname": "sqlglot.expressions.DataType.Type.VARIANT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.VARIANT", "kind": "variable", "doc": "

\n", "default_value": "<Type.VARIANT: 'VARIANT'>"}, "sqlglot.expressions.DataType.Type.OBJECT": {"fullname": "sqlglot.expressions.DataType.Type.OBJECT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.OBJECT", "kind": "variable", "doc": "

\n", "default_value": "<Type.OBJECT: 'OBJECT'>"}, "sqlglot.expressions.DataType.Type.INET": {"fullname": "sqlglot.expressions.DataType.Type.INET", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.INET", "kind": "variable", "doc": "

\n", "default_value": "<Type.INET: 'INET'>"}, "sqlglot.expressions.DataType.Type.NULL": {"fullname": "sqlglot.expressions.DataType.Type.NULL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NULL", "kind": "variable", "doc": "

\n", "default_value": "<Type.NULL: 'NULL'>"}, "sqlglot.expressions.DataType.Type.UNKNOWN": {"fullname": "sqlglot.expressions.DataType.Type.UNKNOWN", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UNKNOWN", "kind": "variable", "doc": "

\n", "default_value": "<Type.UNKNOWN: 'UNKNOWN'>"}, "sqlglot.expressions.DataType.build": {"fullname": "sqlglot.expressions.DataType.build", "modulename": "sqlglot.expressions", "qualname": "DataType.build", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tdtype: str | sqlglot.expressions.DataType | sqlglot.expressions.DataType.Type,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**kwargs) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.expressions.DataType.is_type": {"fullname": "sqlglot.expressions.DataType.is_type", "modulename": "sqlglot.expressions", "qualname": "DataType.is_type", "kind": "function", "doc": "

\n", "signature": "(self, dtype: sqlglot.expressions.DataType.Type) -> bool:", "funcdef": "def"}, "sqlglot.expressions.PseudoType": {"fullname": "sqlglot.expressions.PseudoType", "modulename": "sqlglot.expressions", "qualname": "PseudoType", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.StructKwarg": {"fullname": "sqlglot.expressions.StructKwarg", "modulename": "sqlglot.expressions", "qualname": "StructKwarg", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SubqueryPredicate": {"fullname": "sqlglot.expressions.SubqueryPredicate", "modulename": "sqlglot.expressions", "qualname": "SubqueryPredicate", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.All": {"fullname": "sqlglot.expressions.All", "modulename": "sqlglot.expressions", "qualname": "All", "kind": "class", "doc": "

\n", "bases": "SubqueryPredicate"}, "sqlglot.expressions.Any": {"fullname": "sqlglot.expressions.Any", "modulename": "sqlglot.expressions", "qualname": "Any", "kind": "class", "doc": "

\n", "bases": "SubqueryPredicate"}, "sqlglot.expressions.Exists": {"fullname": "sqlglot.expressions.Exists", "modulename": "sqlglot.expressions", "qualname": "Exists", "kind": "class", "doc": "

\n", "bases": "SubqueryPredicate"}, "sqlglot.expressions.Command": {"fullname": "sqlglot.expressions.Command", "modulename": "sqlglot.expressions", "qualname": "Command", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Transaction": {"fullname": "sqlglot.expressions.Transaction", "modulename": "sqlglot.expressions", "qualname": "Transaction", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Commit": {"fullname": "sqlglot.expressions.Commit", "modulename": "sqlglot.expressions", "qualname": "Commit", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Rollback": {"fullname": "sqlglot.expressions.Rollback", "modulename": "sqlglot.expressions", "qualname": "Rollback", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AlterTable": {"fullname": "sqlglot.expressions.AlterTable", "modulename": "sqlglot.expressions", "qualname": "AlterTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AddConstraint": {"fullname": "sqlglot.expressions.AddConstraint", "modulename": "sqlglot.expressions", "qualname": "AddConstraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.DropPartition": {"fullname": "sqlglot.expressions.DropPartition", "modulename": "sqlglot.expressions", "qualname": "DropPartition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Binary": {"fullname": "sqlglot.expressions.Binary", "modulename": "sqlglot.expressions", "qualname": "Binary", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Add": {"fullname": "sqlglot.expressions.Add", "modulename": "sqlglot.expressions", "qualname": "Add", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Connector": {"fullname": "sqlglot.expressions.Connector", "modulename": "sqlglot.expressions", "qualname": "Connector", "kind": "class", "doc": "

\n", "bases": "Binary, Condition"}, "sqlglot.expressions.And": {"fullname": "sqlglot.expressions.And", "modulename": "sqlglot.expressions", "qualname": "And", "kind": "class", "doc": "

\n", "bases": "Connector"}, "sqlglot.expressions.Or": {"fullname": "sqlglot.expressions.Or", "modulename": "sqlglot.expressions", "qualname": "Or", "kind": "class", "doc": "

\n", "bases": "Connector"}, "sqlglot.expressions.BitwiseAnd": {"fullname": "sqlglot.expressions.BitwiseAnd", "modulename": "sqlglot.expressions", "qualname": "BitwiseAnd", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseLeftShift": {"fullname": "sqlglot.expressions.BitwiseLeftShift", "modulename": "sqlglot.expressions", "qualname": "BitwiseLeftShift", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseOr": {"fullname": "sqlglot.expressions.BitwiseOr", "modulename": "sqlglot.expressions", "qualname": "BitwiseOr", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseRightShift": {"fullname": "sqlglot.expressions.BitwiseRightShift", "modulename": "sqlglot.expressions", "qualname": "BitwiseRightShift", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseXor": {"fullname": "sqlglot.expressions.BitwiseXor", "modulename": "sqlglot.expressions", "qualname": "BitwiseXor", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Div": {"fullname": "sqlglot.expressions.Div", "modulename": "sqlglot.expressions", "qualname": "Div", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.FloatDiv": {"fullname": "sqlglot.expressions.FloatDiv", "modulename": "sqlglot.expressions", "qualname": "FloatDiv", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Overlaps": {"fullname": "sqlglot.expressions.Overlaps", "modulename": "sqlglot.expressions", "qualname": "Overlaps", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Dot": {"fullname": "sqlglot.expressions.Dot", "modulename": "sqlglot.expressions", "qualname": "Dot", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.DPipe": {"fullname": "sqlglot.expressions.DPipe", "modulename": "sqlglot.expressions", "qualname": "DPipe", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.EQ": {"fullname": "sqlglot.expressions.EQ", "modulename": "sqlglot.expressions", "qualname": "EQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.NullSafeEQ": {"fullname": "sqlglot.expressions.NullSafeEQ", "modulename": "sqlglot.expressions", "qualname": "NullSafeEQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.NullSafeNEQ": {"fullname": "sqlglot.expressions.NullSafeNEQ", "modulename": "sqlglot.expressions", "qualname": "NullSafeNEQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Distance": {"fullname": "sqlglot.expressions.Distance", "modulename": "sqlglot.expressions", "qualname": "Distance", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Escape": {"fullname": "sqlglot.expressions.Escape", "modulename": "sqlglot.expressions", "qualname": "Escape", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Glob": {"fullname": "sqlglot.expressions.Glob", "modulename": "sqlglot.expressions", "qualname": "Glob", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.GT": {"fullname": "sqlglot.expressions.GT", "modulename": "sqlglot.expressions", "qualname": "GT", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.GTE": {"fullname": "sqlglot.expressions.GTE", "modulename": "sqlglot.expressions", "qualname": "GTE", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.ILike": {"fullname": "sqlglot.expressions.ILike", "modulename": "sqlglot.expressions", "qualname": "ILike", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.ILikeAny": {"fullname": "sqlglot.expressions.ILikeAny", "modulename": "sqlglot.expressions", "qualname": "ILikeAny", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.IntDiv": {"fullname": "sqlglot.expressions.IntDiv", "modulename": "sqlglot.expressions", "qualname": "IntDiv", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Is": {"fullname": "sqlglot.expressions.Is", "modulename": "sqlglot.expressions", "qualname": "Is", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Kwarg": {"fullname": "sqlglot.expressions.Kwarg", "modulename": "sqlglot.expressions", "qualname": "Kwarg", "kind": "class", "doc": "

Kwarg in special functions like func(kwarg => y).

\n", "bases": "Binary"}, "sqlglot.expressions.Like": {"fullname": "sqlglot.expressions.Like", "modulename": "sqlglot.expressions", "qualname": "Like", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LikeAny": {"fullname": "sqlglot.expressions.LikeAny", "modulename": "sqlglot.expressions", "qualname": "LikeAny", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LT": {"fullname": "sqlglot.expressions.LT", "modulename": "sqlglot.expressions", "qualname": "LT", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LTE": {"fullname": "sqlglot.expressions.LTE", "modulename": "sqlglot.expressions", "qualname": "LTE", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Mod": {"fullname": "sqlglot.expressions.Mod", "modulename": "sqlglot.expressions", "qualname": "Mod", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Mul": {"fullname": "sqlglot.expressions.Mul", "modulename": "sqlglot.expressions", "qualname": "Mul", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.NEQ": {"fullname": "sqlglot.expressions.NEQ", "modulename": "sqlglot.expressions", "qualname": "NEQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.SimilarTo": {"fullname": "sqlglot.expressions.SimilarTo", "modulename": "sqlglot.expressions", "qualname": "SimilarTo", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Slice": {"fullname": "sqlglot.expressions.Slice", "modulename": "sqlglot.expressions", "qualname": "Slice", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Sub": {"fullname": "sqlglot.expressions.Sub", "modulename": "sqlglot.expressions", "qualname": "Sub", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Unary": {"fullname": "sqlglot.expressions.Unary", "modulename": "sqlglot.expressions", "qualname": "Unary", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.BitwiseNot": {"fullname": "sqlglot.expressions.BitwiseNot", "modulename": "sqlglot.expressions", "qualname": "BitwiseNot", "kind": "class", "doc": "

\n", "bases": "Unary"}, "sqlglot.expressions.Not": {"fullname": "sqlglot.expressions.Not", "modulename": "sqlglot.expressions", "qualname": "Not", "kind": "class", "doc": "

\n", "bases": "Unary, Condition"}, "sqlglot.expressions.Paren": {"fullname": "sqlglot.expressions.Paren", "modulename": "sqlglot.expressions", "qualname": "Paren", "kind": "class", "doc": "

\n", "bases": "Unary, Condition"}, "sqlglot.expressions.Neg": {"fullname": "sqlglot.expressions.Neg", "modulename": "sqlglot.expressions", "qualname": "Neg", "kind": "class", "doc": "

\n", "bases": "Unary"}, "sqlglot.expressions.Alias": {"fullname": "sqlglot.expressions.Alias", "modulename": "sqlglot.expressions", "qualname": "Alias", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Alias.output_name": {"fullname": "sqlglot.expressions.Alias.output_name", "modulename": "sqlglot.expressions", "qualname": "Alias.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Aliases": {"fullname": "sqlglot.expressions.Aliases", "modulename": "sqlglot.expressions", "qualname": "Aliases", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AtTimeZone": {"fullname": "sqlglot.expressions.AtTimeZone", "modulename": "sqlglot.expressions", "qualname": "AtTimeZone", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Between": {"fullname": "sqlglot.expressions.Between", "modulename": "sqlglot.expressions", "qualname": "Between", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.Bracket": {"fullname": "sqlglot.expressions.Bracket", "modulename": "sqlglot.expressions", "qualname": "Bracket", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Distinct": {"fullname": "sqlglot.expressions.Distinct", "modulename": "sqlglot.expressions", "qualname": "Distinct", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.In": {"fullname": "sqlglot.expressions.In", "modulename": "sqlglot.expressions", "qualname": "In", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.TimeUnit": {"fullname": "sqlglot.expressions.TimeUnit", "modulename": "sqlglot.expressions", "qualname": "TimeUnit", "kind": "class", "doc": "

Automatically converts unit arg into a var.

\n", "bases": "Expression"}, "sqlglot.expressions.TimeUnit.__init__": {"fullname": "sqlglot.expressions.TimeUnit.__init__", "modulename": "sqlglot.expressions", "qualname": "TimeUnit.__init__", "kind": "function", "doc": "

\n", "signature": "(**args)"}, "sqlglot.expressions.Interval": {"fullname": "sqlglot.expressions.Interval", "modulename": "sqlglot.expressions", "qualname": "Interval", "kind": "class", "doc": "

\n", "bases": "TimeUnit"}, "sqlglot.expressions.IgnoreNulls": {"fullname": "sqlglot.expressions.IgnoreNulls", "modulename": "sqlglot.expressions", "qualname": "IgnoreNulls", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.RespectNulls": {"fullname": "sqlglot.expressions.RespectNulls", "modulename": "sqlglot.expressions", "qualname": "RespectNulls", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Func": {"fullname": "sqlglot.expressions.Func", "modulename": "sqlglot.expressions", "qualname": "Func", "kind": "class", "doc": "

The base class for all function expressions.

\n\n
Attributes:
\n\n
    \n
  • is_var_len_args (bool): if set to True the last argument defined in arg_types will be\ntreated as a variable length argument and the argument's value will be stored as a list.
  • \n
  • _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)\nfor this function expression. These values are used to map this node to a name during parsing\nas well as to provide the function's name during SQL string generation. By default the SQL\nname is set to the expression's class name transformed to snake case.
  • \n
\n", "bases": "Condition"}, "sqlglot.expressions.Func.from_arg_list": {"fullname": "sqlglot.expressions.Func.from_arg_list", "modulename": "sqlglot.expressions", "qualname": "Func.from_arg_list", "kind": "function", "doc": "

\n", "signature": "(cls, args):", "funcdef": "def"}, "sqlglot.expressions.Func.sql_names": {"fullname": "sqlglot.expressions.Func.sql_names", "modulename": "sqlglot.expressions", "qualname": "Func.sql_names", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.Func.sql_name": {"fullname": "sqlglot.expressions.Func.sql_name", "modulename": "sqlglot.expressions", "qualname": "Func.sql_name", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.Func.default_parser_mappings": {"fullname": "sqlglot.expressions.Func.default_parser_mappings", "modulename": "sqlglot.expressions", "qualname": "Func.default_parser_mappings", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.AggFunc": {"fullname": "sqlglot.expressions.AggFunc", "modulename": "sqlglot.expressions", "qualname": "AggFunc", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Abs": {"fullname": "sqlglot.expressions.Abs", "modulename": "sqlglot.expressions", "qualname": "Abs", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Anonymous": {"fullname": "sqlglot.expressions.Anonymous", "modulename": "sqlglot.expressions", "qualname": "Anonymous", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ApproxDistinct": {"fullname": "sqlglot.expressions.ApproxDistinct", "modulename": "sqlglot.expressions", "qualname": "ApproxDistinct", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Array": {"fullname": "sqlglot.expressions.Array", "modulename": "sqlglot.expressions", "qualname": "Array", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.GenerateSeries": {"fullname": "sqlglot.expressions.GenerateSeries", "modulename": "sqlglot.expressions", "qualname": "GenerateSeries", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayAgg": {"fullname": "sqlglot.expressions.ArrayAgg", "modulename": "sqlglot.expressions", "qualname": "ArrayAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.ArrayAll": {"fullname": "sqlglot.expressions.ArrayAll", "modulename": "sqlglot.expressions", "qualname": "ArrayAll", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayAny": {"fullname": "sqlglot.expressions.ArrayAny", "modulename": "sqlglot.expressions", "qualname": "ArrayAny", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayConcat": {"fullname": "sqlglot.expressions.ArrayConcat", "modulename": "sqlglot.expressions", "qualname": "ArrayConcat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayContains": {"fullname": "sqlglot.expressions.ArrayContains", "modulename": "sqlglot.expressions", "qualname": "ArrayContains", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayFilter": {"fullname": "sqlglot.expressions.ArrayFilter", "modulename": "sqlglot.expressions", "qualname": "ArrayFilter", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayJoin": {"fullname": "sqlglot.expressions.ArrayJoin", "modulename": "sqlglot.expressions", "qualname": "ArrayJoin", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySize": {"fullname": "sqlglot.expressions.ArraySize", "modulename": "sqlglot.expressions", "qualname": "ArraySize", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySort": {"fullname": "sqlglot.expressions.ArraySort", "modulename": "sqlglot.expressions", "qualname": "ArraySort", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySum": {"fullname": "sqlglot.expressions.ArraySum", "modulename": "sqlglot.expressions", "qualname": "ArraySum", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayUnionAgg": {"fullname": "sqlglot.expressions.ArrayUnionAgg", "modulename": "sqlglot.expressions", "qualname": "ArrayUnionAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Avg": {"fullname": "sqlglot.expressions.Avg", "modulename": "sqlglot.expressions", "qualname": "Avg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.AnyValue": {"fullname": "sqlglot.expressions.AnyValue", "modulename": "sqlglot.expressions", "qualname": "AnyValue", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Case": {"fullname": "sqlglot.expressions.Case", "modulename": "sqlglot.expressions", "qualname": "Case", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Cast": {"fullname": "sqlglot.expressions.Cast", "modulename": "sqlglot.expressions", "qualname": "Cast", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Cast.output_name": {"fullname": "sqlglot.expressions.Cast.output_name", "modulename": "sqlglot.expressions", "qualname": "Cast.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Cast.is_type": {"fullname": "sqlglot.expressions.Cast.is_type", "modulename": "sqlglot.expressions", "qualname": "Cast.is_type", "kind": "function", "doc": "

\n", "signature": "(self, dtype: sqlglot.expressions.DataType.Type) -> bool:", "funcdef": "def"}, "sqlglot.expressions.Collate": {"fullname": "sqlglot.expressions.Collate", "modulename": "sqlglot.expressions", "qualname": "Collate", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.TryCast": {"fullname": "sqlglot.expressions.TryCast", "modulename": "sqlglot.expressions", "qualname": "TryCast", "kind": "class", "doc": "

\n", "bases": "Cast"}, "sqlglot.expressions.Ceil": {"fullname": "sqlglot.expressions.Ceil", "modulename": "sqlglot.expressions", "qualname": "Ceil", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Coalesce": {"fullname": "sqlglot.expressions.Coalesce", "modulename": "sqlglot.expressions", "qualname": "Coalesce", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Concat": {"fullname": "sqlglot.expressions.Concat", "modulename": "sqlglot.expressions", "qualname": "Concat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ConcatWs": {"fullname": "sqlglot.expressions.ConcatWs", "modulename": "sqlglot.expressions", "qualname": "ConcatWs", "kind": "class", "doc": "

\n", "bases": "Concat"}, "sqlglot.expressions.Count": {"fullname": "sqlglot.expressions.Count", "modulename": "sqlglot.expressions", "qualname": "Count", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.CurrentDate": {"fullname": "sqlglot.expressions.CurrentDate", "modulename": "sqlglot.expressions", "qualname": "CurrentDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentDatetime": {"fullname": "sqlglot.expressions.CurrentDatetime", "modulename": "sqlglot.expressions", "qualname": "CurrentDatetime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentTime": {"fullname": "sqlglot.expressions.CurrentTime", "modulename": "sqlglot.expressions", "qualname": "CurrentTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentTimestamp": {"fullname": "sqlglot.expressions.CurrentTimestamp", "modulename": "sqlglot.expressions", "qualname": "CurrentTimestamp", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateAdd": {"fullname": "sqlglot.expressions.DateAdd", "modulename": "sqlglot.expressions", "qualname": "DateAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateSub": {"fullname": "sqlglot.expressions.DateSub", "modulename": "sqlglot.expressions", "qualname": "DateSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateDiff": {"fullname": "sqlglot.expressions.DateDiff", "modulename": "sqlglot.expressions", "qualname": "DateDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateTrunc": {"fullname": "sqlglot.expressions.DateTrunc", "modulename": "sqlglot.expressions", "qualname": "DateTrunc", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DatetimeAdd": {"fullname": "sqlglot.expressions.DatetimeAdd", "modulename": "sqlglot.expressions", "qualname": "DatetimeAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeSub": {"fullname": "sqlglot.expressions.DatetimeSub", "modulename": "sqlglot.expressions", "qualname": "DatetimeSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeDiff": {"fullname": "sqlglot.expressions.DatetimeDiff", "modulename": "sqlglot.expressions", "qualname": "DatetimeDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeTrunc": {"fullname": "sqlglot.expressions.DatetimeTrunc", "modulename": "sqlglot.expressions", "qualname": "DatetimeTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DayOfWeek": {"fullname": "sqlglot.expressions.DayOfWeek", "modulename": "sqlglot.expressions", "qualname": "DayOfWeek", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DayOfMonth": {"fullname": "sqlglot.expressions.DayOfMonth", "modulename": "sqlglot.expressions", "qualname": "DayOfMonth", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DayOfYear": {"fullname": "sqlglot.expressions.DayOfYear", "modulename": "sqlglot.expressions", "qualname": "DayOfYear", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.WeekOfYear": {"fullname": "sqlglot.expressions.WeekOfYear", "modulename": "sqlglot.expressions", "qualname": "WeekOfYear", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.LastDateOfMonth": {"fullname": "sqlglot.expressions.LastDateOfMonth", "modulename": "sqlglot.expressions", "qualname": "LastDateOfMonth", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Extract": {"fullname": "sqlglot.expressions.Extract", "modulename": "sqlglot.expressions", "qualname": "Extract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimestampAdd": {"fullname": "sqlglot.expressions.TimestampAdd", "modulename": "sqlglot.expressions", "qualname": "TimestampAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampSub": {"fullname": "sqlglot.expressions.TimestampSub", "modulename": "sqlglot.expressions", "qualname": "TimestampSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampDiff": {"fullname": "sqlglot.expressions.TimestampDiff", "modulename": "sqlglot.expressions", "qualname": "TimestampDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampTrunc": {"fullname": "sqlglot.expressions.TimestampTrunc", "modulename": "sqlglot.expressions", "qualname": "TimestampTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeAdd": {"fullname": "sqlglot.expressions.TimeAdd", "modulename": "sqlglot.expressions", "qualname": "TimeAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeSub": {"fullname": "sqlglot.expressions.TimeSub", "modulename": "sqlglot.expressions", "qualname": "TimeSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeDiff": {"fullname": "sqlglot.expressions.TimeDiff", "modulename": "sqlglot.expressions", "qualname": "TimeDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeTrunc": {"fullname": "sqlglot.expressions.TimeTrunc", "modulename": "sqlglot.expressions", "qualname": "TimeTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateFromParts": {"fullname": "sqlglot.expressions.DateFromParts", "modulename": "sqlglot.expressions", "qualname": "DateFromParts", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateStrToDate": {"fullname": "sqlglot.expressions.DateStrToDate", "modulename": "sqlglot.expressions", "qualname": "DateStrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateToDateStr": {"fullname": "sqlglot.expressions.DateToDateStr", "modulename": "sqlglot.expressions", "qualname": "DateToDateStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateToDi": {"fullname": "sqlglot.expressions.DateToDi", "modulename": "sqlglot.expressions", "qualname": "DateToDi", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Day": {"fullname": "sqlglot.expressions.Day", "modulename": "sqlglot.expressions", "qualname": "Day", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Decode": {"fullname": "sqlglot.expressions.Decode", "modulename": "sqlglot.expressions", "qualname": "Decode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DiToDate": {"fullname": "sqlglot.expressions.DiToDate", "modulename": "sqlglot.expressions", "qualname": "DiToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Encode": {"fullname": "sqlglot.expressions.Encode", "modulename": "sqlglot.expressions", "qualname": "Encode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Exp": {"fullname": "sqlglot.expressions.Exp", "modulename": "sqlglot.expressions", "qualname": "Exp", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Explode": {"fullname": "sqlglot.expressions.Explode", "modulename": "sqlglot.expressions", "qualname": "Explode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Floor": {"fullname": "sqlglot.expressions.Floor", "modulename": "sqlglot.expressions", "qualname": "Floor", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Greatest": {"fullname": "sqlglot.expressions.Greatest", "modulename": "sqlglot.expressions", "qualname": "Greatest", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.GroupConcat": {"fullname": "sqlglot.expressions.GroupConcat", "modulename": "sqlglot.expressions", "qualname": "GroupConcat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Hex": {"fullname": "sqlglot.expressions.Hex", "modulename": "sqlglot.expressions", "qualname": "Hex", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.If": {"fullname": "sqlglot.expressions.If", "modulename": "sqlglot.expressions", "qualname": "If", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.IfNull": {"fullname": "sqlglot.expressions.IfNull", "modulename": "sqlglot.expressions", "qualname": "IfNull", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Initcap": {"fullname": "sqlglot.expressions.Initcap", "modulename": "sqlglot.expressions", "qualname": "Initcap", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.JSONBContains": {"fullname": "sqlglot.expressions.JSONBContains", "modulename": "sqlglot.expressions", "qualname": "JSONBContains", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.JSONExtract": {"fullname": "sqlglot.expressions.JSONExtract", "modulename": "sqlglot.expressions", "qualname": "JSONExtract", "kind": "class", "doc": "

\n", "bases": "Binary, Func"}, "sqlglot.expressions.JSONExtractScalar": {"fullname": "sqlglot.expressions.JSONExtractScalar", "modulename": "sqlglot.expressions", "qualname": "JSONExtractScalar", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.JSONBExtract": {"fullname": "sqlglot.expressions.JSONBExtract", "modulename": "sqlglot.expressions", "qualname": "JSONBExtract", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.JSONBExtractScalar": {"fullname": "sqlglot.expressions.JSONBExtractScalar", "modulename": "sqlglot.expressions", "qualname": "JSONBExtractScalar", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.Least": {"fullname": "sqlglot.expressions.Least", "modulename": "sqlglot.expressions", "qualname": "Least", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Length": {"fullname": "sqlglot.expressions.Length", "modulename": "sqlglot.expressions", "qualname": "Length", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Levenshtein": {"fullname": "sqlglot.expressions.Levenshtein", "modulename": "sqlglot.expressions", "qualname": "Levenshtein", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Ln": {"fullname": "sqlglot.expressions.Ln", "modulename": "sqlglot.expressions", "qualname": "Ln", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log": {"fullname": "sqlglot.expressions.Log", "modulename": "sqlglot.expressions", "qualname": "Log", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log2": {"fullname": "sqlglot.expressions.Log2", "modulename": "sqlglot.expressions", "qualname": "Log2", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log10": {"fullname": "sqlglot.expressions.Log10", "modulename": "sqlglot.expressions", "qualname": "Log10", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.LogicalOr": {"fullname": "sqlglot.expressions.LogicalOr", "modulename": "sqlglot.expressions", "qualname": "LogicalOr", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Lower": {"fullname": "sqlglot.expressions.Lower", "modulename": "sqlglot.expressions", "qualname": "Lower", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Map": {"fullname": "sqlglot.expressions.Map", "modulename": "sqlglot.expressions", "qualname": "Map", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.VarMap": {"fullname": "sqlglot.expressions.VarMap", "modulename": "sqlglot.expressions", "qualname": "VarMap", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Matches": {"fullname": "sqlglot.expressions.Matches", "modulename": "sqlglot.expressions", "qualname": "Matches", "kind": "class", "doc": "

Oracle/Snowflake decode.\nhttps://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm\nPattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

\n", "bases": "Func"}, "sqlglot.expressions.Max": {"fullname": "sqlglot.expressions.Max", "modulename": "sqlglot.expressions", "qualname": "Max", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Min": {"fullname": "sqlglot.expressions.Min", "modulename": "sqlglot.expressions", "qualname": "Min", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Month": {"fullname": "sqlglot.expressions.Month", "modulename": "sqlglot.expressions", "qualname": "Month", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Nvl2": {"fullname": "sqlglot.expressions.Nvl2", "modulename": "sqlglot.expressions", "qualname": "Nvl2", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Posexplode": {"fullname": "sqlglot.expressions.Posexplode", "modulename": "sqlglot.expressions", "qualname": "Posexplode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Pow": {"fullname": "sqlglot.expressions.Pow", "modulename": "sqlglot.expressions", "qualname": "Pow", "kind": "class", "doc": "

\n", "bases": "Binary, Func"}, "sqlglot.expressions.PercentileCont": {"fullname": "sqlglot.expressions.PercentileCont", "modulename": "sqlglot.expressions", "qualname": "PercentileCont", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.PercentileDisc": {"fullname": "sqlglot.expressions.PercentileDisc", "modulename": "sqlglot.expressions", "qualname": "PercentileDisc", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Quantile": {"fullname": "sqlglot.expressions.Quantile", "modulename": "sqlglot.expressions", "qualname": "Quantile", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Quantiles": {"fullname": "sqlglot.expressions.Quantiles", "modulename": "sqlglot.expressions", "qualname": "Quantiles", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.QuantileIf": {"fullname": "sqlglot.expressions.QuantileIf", "modulename": "sqlglot.expressions", "qualname": "QuantileIf", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.ApproxQuantile": {"fullname": "sqlglot.expressions.ApproxQuantile", "modulename": "sqlglot.expressions", "qualname": "ApproxQuantile", "kind": "class", "doc": "

\n", "bases": "Quantile"}, "sqlglot.expressions.RangeN": {"fullname": "sqlglot.expressions.RangeN", "modulename": "sqlglot.expressions", "qualname": "RangeN", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ReadCSV": {"fullname": "sqlglot.expressions.ReadCSV", "modulename": "sqlglot.expressions", "qualname": "ReadCSV", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Reduce": {"fullname": "sqlglot.expressions.Reduce", "modulename": "sqlglot.expressions", "qualname": "Reduce", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpExtract": {"fullname": "sqlglot.expressions.RegexpExtract", "modulename": "sqlglot.expressions", "qualname": "RegexpExtract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpLike": {"fullname": "sqlglot.expressions.RegexpLike", "modulename": "sqlglot.expressions", "qualname": "RegexpLike", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpILike": {"fullname": "sqlglot.expressions.RegexpILike", "modulename": "sqlglot.expressions", "qualname": "RegexpILike", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpSplit": {"fullname": "sqlglot.expressions.RegexpSplit", "modulename": "sqlglot.expressions", "qualname": "RegexpSplit", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Repeat": {"fullname": "sqlglot.expressions.Repeat", "modulename": "sqlglot.expressions", "qualname": "Repeat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Round": {"fullname": "sqlglot.expressions.Round", "modulename": "sqlglot.expressions", "qualname": "Round", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RowNumber": {"fullname": "sqlglot.expressions.RowNumber", "modulename": "sqlglot.expressions", "qualname": "RowNumber", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SafeDivide": {"fullname": "sqlglot.expressions.SafeDivide", "modulename": "sqlglot.expressions", "qualname": "SafeDivide", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SetAgg": {"fullname": "sqlglot.expressions.SetAgg", "modulename": "sqlglot.expressions", "qualname": "SetAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.SortArray": {"fullname": "sqlglot.expressions.SortArray", "modulename": "sqlglot.expressions", "qualname": "SortArray", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Split": {"fullname": "sqlglot.expressions.Split", "modulename": "sqlglot.expressions", "qualname": "Split", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Substring": {"fullname": "sqlglot.expressions.Substring", "modulename": "sqlglot.expressions", "qualname": "Substring", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrPosition": {"fullname": "sqlglot.expressions.StrPosition", "modulename": "sqlglot.expressions", "qualname": "StrPosition", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToDate": {"fullname": "sqlglot.expressions.StrToDate", "modulename": "sqlglot.expressions", "qualname": "StrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToTime": {"fullname": "sqlglot.expressions.StrToTime", "modulename": "sqlglot.expressions", "qualname": "StrToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToUnix": {"fullname": "sqlglot.expressions.StrToUnix", "modulename": "sqlglot.expressions", "qualname": "StrToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.NumberToStr": {"fullname": "sqlglot.expressions.NumberToStr", "modulename": "sqlglot.expressions", "qualname": "NumberToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Struct": {"fullname": "sqlglot.expressions.Struct", "modulename": "sqlglot.expressions", "qualname": "Struct", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StructExtract": {"fullname": "sqlglot.expressions.StructExtract", "modulename": "sqlglot.expressions", "qualname": "StructExtract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Sum": {"fullname": "sqlglot.expressions.Sum", "modulename": "sqlglot.expressions", "qualname": "Sum", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Sqrt": {"fullname": "sqlglot.expressions.Sqrt", "modulename": "sqlglot.expressions", "qualname": "Sqrt", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Stddev": {"fullname": "sqlglot.expressions.Stddev", "modulename": "sqlglot.expressions", "qualname": "Stddev", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.StddevPop": {"fullname": "sqlglot.expressions.StddevPop", "modulename": "sqlglot.expressions", "qualname": "StddevPop", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.StddevSamp": {"fullname": "sqlglot.expressions.StddevSamp", "modulename": "sqlglot.expressions", "qualname": "StddevSamp", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.TimeToStr": {"fullname": "sqlglot.expressions.TimeToStr", "modulename": "sqlglot.expressions", "qualname": "TimeToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeToTimeStr": {"fullname": "sqlglot.expressions.TimeToTimeStr", "modulename": "sqlglot.expressions", "qualname": "TimeToTimeStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeToUnix": {"fullname": "sqlglot.expressions.TimeToUnix", "modulename": "sqlglot.expressions", "qualname": "TimeToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToDate": {"fullname": "sqlglot.expressions.TimeStrToDate", "modulename": "sqlglot.expressions", "qualname": "TimeStrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToTime": {"fullname": "sqlglot.expressions.TimeStrToTime", "modulename": "sqlglot.expressions", "qualname": "TimeStrToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToUnix": {"fullname": "sqlglot.expressions.TimeStrToUnix", "modulename": "sqlglot.expressions", "qualname": "TimeStrToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Trim": {"fullname": "sqlglot.expressions.Trim", "modulename": "sqlglot.expressions", "qualname": "Trim", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDsAdd": {"fullname": "sqlglot.expressions.TsOrDsAdd", "modulename": "sqlglot.expressions", "qualname": "TsOrDsAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TsOrDsToDateStr": {"fullname": "sqlglot.expressions.TsOrDsToDateStr", "modulename": "sqlglot.expressions", "qualname": "TsOrDsToDateStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDsToDate": {"fullname": "sqlglot.expressions.TsOrDsToDate", "modulename": "sqlglot.expressions", "qualname": "TsOrDsToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDiToDi": {"fullname": "sqlglot.expressions.TsOrDiToDi", "modulename": "sqlglot.expressions", "qualname": "TsOrDiToDi", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Unhex": {"fullname": "sqlglot.expressions.Unhex", "modulename": "sqlglot.expressions", "qualname": "Unhex", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToStr": {"fullname": "sqlglot.expressions.UnixToStr", "modulename": "sqlglot.expressions", "qualname": "UnixToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToTime": {"fullname": "sqlglot.expressions.UnixToTime", "modulename": "sqlglot.expressions", "qualname": "UnixToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToTimeStr": {"fullname": "sqlglot.expressions.UnixToTimeStr", "modulename": "sqlglot.expressions", "qualname": "UnixToTimeStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Upper": {"fullname": "sqlglot.expressions.Upper", "modulename": "sqlglot.expressions", "qualname": "Upper", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Variance": {"fullname": "sqlglot.expressions.Variance", "modulename": "sqlglot.expressions", "qualname": "Variance", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.VariancePop": {"fullname": "sqlglot.expressions.VariancePop", "modulename": "sqlglot.expressions", "qualname": "VariancePop", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Week": {"fullname": "sqlglot.expressions.Week", "modulename": "sqlglot.expressions", "qualname": "Week", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.XMLTable": {"fullname": "sqlglot.expressions.XMLTable", "modulename": "sqlglot.expressions", "qualname": "XMLTable", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Year": {"fullname": "sqlglot.expressions.Year", "modulename": "sqlglot.expressions", "qualname": "Year", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Use": {"fullname": "sqlglot.expressions.Use", "modulename": "sqlglot.expressions", "qualname": "Use", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Merge": {"fullname": "sqlglot.expressions.Merge", "modulename": "sqlglot.expressions", "qualname": "Merge", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.When": {"fullname": "sqlglot.expressions.When", "modulename": "sqlglot.expressions", "qualname": "When", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.maybe_parse": {"fullname": "sqlglot.expressions.maybe_parse", "modulename": "sqlglot.expressions", "qualname": "maybe_parse", "kind": "function", "doc": "

Gracefully handle a possible string or expression.

\n\n
Example:
\n\n
\n
\n
>>> maybe_parse("1")\n(LITERAL this: 1, is_string: False)\n>>> maybe_parse(to_identifier("x"))\n(IDENTIFIER this: x, quoted: False)\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • sql_or_expression: the SQL code string or an expression
  • \n
  • into: the SQLGlot Expression to parse into
  • \n
  • dialect: the dialect used to parse the input expressions (in the case that an\ninput expression is a SQL string).
  • \n
  • prefix: a string to prefix the sql with before it gets parsed\n(automatically includes a space)
  • \n
  • copy: whether or not to copy the expression.
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat an input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Expression: the parsed or given expression.

\n
\n", "signature": "(\tsql_or_expression: str | sqlglot.expressions.Expression,\t*,\tinto: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]], NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tprefix: Optional[str] = None,\tcopy: bool = False,\t**opts) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.union": {"fullname": "sqlglot.expressions.union", "modulename": "sqlglot.expressions", "qualname": "union", "kind": "function", "doc": "

Initializes a syntax tree from one UNION expression.

\n\n
Example:
\n\n
\n
\n
>>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo UNION SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the syntax tree for the UNION expression.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.intersect": {"fullname": "sqlglot.expressions.intersect", "modulename": "sqlglot.expressions", "qualname": "intersect", "kind": "function", "doc": "

Initializes a syntax tree from one INTERSECT expression.

\n\n
Example:
\n\n
\n
\n
>>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo INTERSECT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Intersect: the syntax tree for the INTERSECT expression.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.except_": {"fullname": "sqlglot.expressions.except_", "modulename": "sqlglot.expressions", "qualname": "except_", "kind": "function", "doc": "

Initializes a syntax tree from one EXCEPT expression.

\n\n
Example:
\n\n
\n
\n
>>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo EXCEPT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Except: the syntax tree for the EXCEPT statement.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.select": {"fullname": "sqlglot.expressions.select", "modulename": "sqlglot.expressions", "qualname": "select", "kind": "function", "doc": "

Initializes a syntax tree from one or multiple SELECT expressions.

\n\n
Example:
\n\n
\n
\n
>>> select("col1", "col2").from_("tbl").sql()\n'SELECT col1, col2 FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code string to parse as the expressions of a\nSELECT statement. If an Expression instance is passed, this is used as-is.
  • \n
  • dialect: the dialect used to parse the input expressions (in the case that an\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat an input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Select: the syntax tree for the SELECT statement.

\n
\n", "signature": "(\t*expressions: str | sqlglot.expressions.Expression,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.from_": {"fullname": "sqlglot.expressions.from_", "modulename": "sqlglot.expressions", "qualname": "from_", "kind": "function", "doc": "

Initializes a syntax tree from a FROM expression.

\n\n
Example:
\n\n
\n
\n
>>> from_("tbl").select("col1", "col2").sql()\n'SELECT col1, col2 FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a\nSELECT statement. If an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression (in the case that the\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat the input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Select: the syntax tree for the SELECT statement.

\n
\n", "signature": "(*expressions, dialect=None, **opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.update": {"fullname": "sqlglot.expressions.update", "modulename": "sqlglot.expressions", "qualname": "update", "kind": "function", "doc": "

Creates an update statement.

\n\n
Example:
\n\n
\n
\n
>>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()\n"UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *properties (Dict[str, Any]): dictionary of properties to set which are\nauto converted to sql objects eg None -> NULL
  • \n
  • where (str): sql conditional parsed into a WHERE statement
  • \n
  • from_ (str): sql statement parsed into a FROM statement
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Update: the syntax tree for the UPDATE statement.

\n
\n", "signature": "(\ttable,\tproperties,\twhere=None,\tfrom_=None,\tdialect=None,\t**opts) -> sqlglot.expressions.Update:", "funcdef": "def"}, "sqlglot.expressions.delete": {"fullname": "sqlglot.expressions.delete", "modulename": "sqlglot.expressions", "qualname": "delete", "kind": "function", "doc": "

Builds a delete statement.

\n\n
Example:
\n\n
\n
\n
>>> delete("my_table", where="id > 1").sql()\n'DELETE FROM my_table WHERE id > 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • where (str|Condition): sql conditional parsed into a WHERE statement
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Delete: the syntax tree for the DELETE statement.

\n
\n", "signature": "(table, where=None, dialect=None, **opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "sqlglot.expressions.condition": {"fullname": "sqlglot.expressions.condition", "modulename": "sqlglot.expressions", "qualname": "condition", "kind": "function", "doc": "

Initialize a logical condition expression.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").sql()\n'x = 1'\n
\n
\n \n

This is helpful for composing larger logical syntax trees:

\n \n
\n
>>> where = condition("x=1")\n>>> where = where.and_("y=1")\n>>> Select().from_("tbl").select("*").where(where).sql()\n'SELECT * FROM tbl WHERE x = 1 AND y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expression (str | Expression): the SQL code string to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression (in the case that the\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat the input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Condition: the expression

\n
\n", "signature": "(expression, dialect=None, **opts) -> sqlglot.expressions.Condition:", "funcdef": "def"}, "sqlglot.expressions.and_": {"fullname": "sqlglot.expressions.and_", "modulename": "sqlglot.expressions", "qualname": "and_", "kind": "function", "doc": "

Combine multiple conditions with an AND logical operator.

\n\n
Example:
\n\n
\n
\n
>>> and_("x=1", and_("y=1", "z=1")).sql()\n'x = 1 AND (y = 1 AND z = 1)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

And: the new condition

\n
\n", "signature": "(*expressions, dialect=None, **opts) -> sqlglot.expressions.And:", "funcdef": "def"}, "sqlglot.expressions.or_": {"fullname": "sqlglot.expressions.or_", "modulename": "sqlglot.expressions", "qualname": "or_", "kind": "function", "doc": "

Combine multiple conditions with an OR logical operator.

\n\n
Example:
\n\n
\n
\n
>>> or_("x=1", or_("y=1", "z=1")).sql()\n'x = 1 OR (y = 1 OR z = 1)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Or: the new condition

\n
\n", "signature": "(*expressions, dialect=None, **opts) -> sqlglot.expressions.Or:", "funcdef": "def"}, "sqlglot.expressions.not_": {"fullname": "sqlglot.expressions.not_", "modulename": "sqlglot.expressions", "qualname": "not_", "kind": "function", "doc": "

Wrap a condition with a NOT operator.

\n\n
Example:
\n\n
\n
\n
>>> not_("this_suit='black'").sql()\n"NOT this_suit = 'black'"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Not: the new condition

\n
\n", "signature": "(expression, dialect=None, **opts) -> sqlglot.expressions.Not:", "funcdef": "def"}, "sqlglot.expressions.paren": {"fullname": "sqlglot.expressions.paren", "modulename": "sqlglot.expressions", "qualname": "paren", "kind": "function", "doc": "

\n", "signature": "(expression) -> sqlglot.expressions.Paren:", "funcdef": "def"}, "sqlglot.expressions.to_identifier": {"fullname": "sqlglot.expressions.to_identifier", "modulename": "sqlglot.expressions", "qualname": "to_identifier", "kind": "function", "doc": "

Builds an identifier.

\n\n
Arguments:
\n\n
    \n
  • name: The name to turn into an identifier.
  • \n
  • quoted: Whether or not force quote the identifier.
  • \n
\n\n
Returns:
\n\n
\n

The identifier ast node.

\n
\n", "signature": "(name, quoted=None):", "funcdef": "def"}, "sqlglot.expressions.to_interval": {"fullname": "sqlglot.expressions.to_interval", "modulename": "sqlglot.expressions", "qualname": "to_interval", "kind": "function", "doc": "

Builds an interval expression from a string like '1 day' or '5 months'.

\n", "signature": "(\tinterval: str | sqlglot.expressions.Literal) -> sqlglot.expressions.Interval:", "funcdef": "def"}, "sqlglot.expressions.to_table": {"fullname": "sqlglot.expressions.to_table", "modulename": "sqlglot.expressions", "qualname": "to_table", "kind": "function", "doc": "

Create a table expression from a [catalog].[schema].[table] sql path. Catalog and schema are optional.\nIf a table is passed in then that table is returned.

\n\n
Arguments:
\n\n
    \n
  • sql_path: a [catalog].[schema].[table] string.
  • \n
\n\n
Returns:
\n\n
\n

A table expression.

\n
\n", "signature": "(\tsql_path: Union[str, sqlglot.expressions.Table, NoneType],\t**kwargs) -> Optional[sqlglot.expressions.Table]:", "funcdef": "def"}, "sqlglot.expressions.to_column": {"fullname": "sqlglot.expressions.to_column", "modulename": "sqlglot.expressions", "qualname": "to_column", "kind": "function", "doc": "

Create a column from a [table].[column] sql path. Schema is optional.

\n\n

If a column is passed in then that column is returned.

\n\n
Arguments:
\n\n
    \n
  • sql_path: [table].[column] string
  • \n
\n\n
Returns:
\n\n
\n

Table: A column expression

\n
\n", "signature": "(\tsql_path: str | sqlglot.expressions.Column,\t**kwargs) -> sqlglot.expressions.Column:", "funcdef": "def"}, "sqlglot.expressions.alias_": {"fullname": "sqlglot.expressions.alias_", "modulename": "sqlglot.expressions", "qualname": "alias_", "kind": "function", "doc": "

Create an Alias expression.

\n\n
Example:
\n\n
\n
\n
>>> alias_('foo', 'bar').sql()\n'foo AS bar'\n
\n
\n \n
\n
>>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()\n'(SELECT 1, 2) AS bar(a, b)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • alias: the alias name to use. If the name has\nspecial characters it is quoted.
  • \n
  • table: Whether or not to create a table alias, can also be a list of columns.
  • \n
  • quoted: whether or not to quote the alias
  • \n
  • dialect: the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Alias: the aliased expression

\n
\n", "signature": "(\texpression: str | sqlglot.expressions.Expression,\talias: str | sqlglot.expressions.Identifier,\ttable: Union[bool, Sequence[str | sqlglot.expressions.Identifier]] = False,\tquoted: Optional[bool] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts):", "funcdef": "def"}, "sqlglot.expressions.subquery": {"fullname": "sqlglot.expressions.subquery", "modulename": "sqlglot.expressions", "qualname": "subquery", "kind": "function", "doc": "

Build a subquery expression.

\n\n
Example:
\n\n
\n
\n
>>> subquery('select x from tbl', 'bar').select('x').sql()\n'SELECT x FROM (SELECT x FROM tbl) AS bar'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • alias (str | Expression): the alias name to use.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: a new select with the subquery expression included

\n
\n", "signature": "(expression, alias=None, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.column": {"fullname": "sqlglot.expressions.column", "modulename": "sqlglot.expressions", "qualname": "column", "kind": "function", "doc": "

Build a Column.

\n\n
Arguments:
\n\n
    \n
  • col: column name
  • \n
  • table: table name
  • \n
  • schema: schema name
  • \n
  • quoted: whether or not to force quote each part
  • \n
\n\n
Returns:
\n\n
\n

Column: column instance

\n
\n", "signature": "(\tcol: str | sqlglot.expressions.Identifier,\ttable: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tschema: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tquoted: Optional[bool] = None) -> sqlglot.expressions.Column:", "funcdef": "def"}, "sqlglot.expressions.cast": {"fullname": "sqlglot.expressions.cast", "modulename": "sqlglot.expressions", "qualname": "cast", "kind": "function", "doc": "

Cast an expression to a data type.

\n\n
Example:
\n\n
\n
\n
>>> cast('x + 1', 'int').sql()\n'CAST(x + 1 AS INT)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: The expression to cast.
  • \n
  • to: The datatype to cast to.
  • \n
\n\n
Returns:
\n\n
\n

A cast node.

\n
\n", "signature": "(\texpression: str | sqlglot.expressions.Expression,\tto: str | sqlglot.expressions.DataType | sqlglot.expressions.DataType.Type,\t**opts) -> sqlglot.expressions.Cast:", "funcdef": "def"}, "sqlglot.expressions.table_": {"fullname": "sqlglot.expressions.table_", "modulename": "sqlglot.expressions", "qualname": "table_", "kind": "function", "doc": "

Build a Table.

\n\n
Arguments:
\n\n
    \n
  • table (str | Expression): column name
  • \n
  • db (str | Expression): db name
  • \n
  • catalog (str | Expression): catalog name
  • \n
\n\n
Returns:
\n\n
\n

Table: table instance

\n
\n", "signature": "(\ttable,\tdb=None,\tcatalog=None,\tquoted=None,\talias=None) -> sqlglot.expressions.Table:", "funcdef": "def"}, "sqlglot.expressions.values": {"fullname": "sqlglot.expressions.values", "modulename": "sqlglot.expressions", "qualname": "values", "kind": "function", "doc": "

Build VALUES statement.

\n\n
Example:
\n\n
\n
\n
>>> values([(1, '2')]).sql()\n"VALUES (1, '2')"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • values: values statements that will be converted to SQL
  • \n
  • alias: optional alias
  • \n
  • columns: Optional list of ordered column names or ordered dictionary of column names to types.\nIf either are provided then an alias is also required.\nIf a dictionary is provided then the first column of the values will be casted to the expected type\nin order to help with type inference.
  • \n
\n\n
Returns:
\n\n
\n

Values: the Values expression object

\n
\n", "signature": "(\tvalues: Iterable[Tuple[Any, ...]],\talias: Optional[str] = None,\tcolumns: Union[Iterable[str], Dict[str, sqlglot.expressions.DataType], NoneType] = None) -> sqlglot.expressions.Values:", "funcdef": "def"}, "sqlglot.expressions.var": {"fullname": "sqlglot.expressions.var", "modulename": "sqlglot.expressions", "qualname": "var", "kind": "function", "doc": "

Build a SQL variable.

\n\n
Example:
\n\n
\n
\n
>>> repr(var('x'))\n'(VAR this: x)'\n
\n
\n \n
\n
>>> repr(var(column('x', table='y')))\n'(VAR this: x)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • name: The name of the var or an expression who's name will become the var.
  • \n
\n\n
Returns:
\n\n
\n

The new variable node.

\n
\n", "signature": "(\tname: Union[str, sqlglot.expressions.Expression, NoneType]) -> sqlglot.expressions.Var:", "funcdef": "def"}, "sqlglot.expressions.rename_table": {"fullname": "sqlglot.expressions.rename_table", "modulename": "sqlglot.expressions", "qualname": "rename_table", "kind": "function", "doc": "

Build ALTER TABLE... RENAME... expression

\n\n
Arguments:
\n\n
    \n
  • old_name: The old name of the table
  • \n
  • new_name: The new name of the table
  • \n
\n\n
Returns:
\n\n
\n

Alter table expression

\n
\n", "signature": "(\told_name: str | sqlglot.expressions.Table,\tnew_name: str | sqlglot.expressions.Table) -> sqlglot.expressions.AlterTable:", "funcdef": "def"}, "sqlglot.expressions.convert": {"fullname": "sqlglot.expressions.convert", "modulename": "sqlglot.expressions", "qualname": "convert", "kind": "function", "doc": "

Convert a python value into an expression object.

\n\n

Raises an error if a conversion is not possible.

\n\n
Arguments:
\n\n
    \n
  • value (Any): a python object
  • \n
\n\n
Returns:
\n\n
\n

Expression: the equivalent expression object

\n
\n", "signature": "(value) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.replace_children": {"fullname": "sqlglot.expressions.replace_children", "modulename": "sqlglot.expressions", "qualname": "replace_children", "kind": "function", "doc": "

Replace children of an expression with the result of a lambda fun(child) -> exp.

\n", "signature": "(expression, fun):", "funcdef": "def"}, "sqlglot.expressions.column_table_names": {"fullname": "sqlglot.expressions.column_table_names", "modulename": "sqlglot.expressions", "qualname": "column_table_names", "kind": "function", "doc": "

Return all table names referenced through columns in an expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))\n['c', 'a']\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to find table names
  • \n
\n\n
Returns:
\n\n
\n

list: A list of unique names

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.expressions.table_name": {"fullname": "sqlglot.expressions.table_name", "modulename": "sqlglot.expressions", "qualname": "table_name", "kind": "function", "doc": "

Get the full name of a table as a string.

\n\n
Arguments:
\n\n
    \n
  • table (exp.Table | str): table expression node or string.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> table_name(parse_one("select * from a.b.c").find(exp.Table))\n'a.b.c'\n
\n
\n
\n\n
Returns:
\n\n
\n

The table name.

\n
\n", "signature": "(table) -> str:", "funcdef": "def"}, "sqlglot.expressions.replace_tables": {"fullname": "sqlglot.expressions.replace_tables", "modulename": "sqlglot.expressions", "qualname": "replace_tables", "kind": "function", "doc": "

Replace all tables in expression according to the mapping.

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression node to be transformed and replaced.
  • \n
  • mapping (Dict[str, str]): mapping of table names.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()\n'SELECT * FROM c'\n
\n
\n
\n\n
Returns:
\n\n
\n

The mapped expression.

\n
\n", "signature": "(expression, mapping):", "funcdef": "def"}, "sqlglot.expressions.replace_placeholders": {"fullname": "sqlglot.expressions.replace_placeholders", "modulename": "sqlglot.expressions", "qualname": "replace_placeholders", "kind": "function", "doc": "

Replace placeholders in an expression.

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression node to be transformed and replaced.
  • \n
  • args: positional names that will substitute unnamed placeholders in the given order.
  • \n
  • kwargs: keyword arguments that will substitute named placeholders.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> replace_placeholders(\n...     parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo"\n... ).sql()\n'SELECT * FROM foo WHERE a = b'\n
\n
\n
\n\n
Returns:
\n\n
\n

The mapped expression.

\n
\n", "signature": "(expression, *args, **kwargs):", "funcdef": "def"}, "sqlglot.expressions.expand": {"fullname": "sqlglot.expressions.expand", "modulename": "sqlglot.expressions", "qualname": "expand", "kind": "function", "doc": "

Transforms an expression by expanding all referenced sources into subqueries.

\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()\n'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: The expression to expand.
  • \n
  • sources: A dictionary of name to Subqueryables.
  • \n
  • copy: Whether or not to copy the expression during transformation. Defaults to True.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tsources: Dict[str, sqlglot.expressions.Subqueryable],\tcopy=True) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.func": {"fullname": "sqlglot.expressions.func", "modulename": "sqlglot.expressions", "qualname": "func", "kind": "function", "doc": "

Returns a Func expression.

\n\n
Examples:
\n\n
\n
\n
>>> func("abs", 5).sql()\n'ABS(5)'\n
\n
\n \n
\n
>>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()\n'CAST(5 AS DOUBLE)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • name: the name of the function to build.
  • \n
  • args: the args used to instantiate the function of interest.
  • \n
  • dialect: the source dialect.
  • \n
  • kwargs: the kwargs used to instantiate the function of interest.
  • \n
\n\n
Note:
\n\n
\n

The arguments args and kwargs are mutually exclusive.

\n
\n\n
Returns:
\n\n
\n

An instance of the function of interest, or an anonymous function, if name doesn't\n correspond to an existing sqlglot.expressions.Func class.

\n
\n", "signature": "(\tname: str,\t*args,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**kwargs) -> sqlglot.expressions.Func:", "funcdef": "def"}, "sqlglot.expressions.true": {"fullname": "sqlglot.expressions.true", "modulename": "sqlglot.expressions", "qualname": "true", "kind": "function", "doc": "

Returns a true Boolean expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.expressions.false": {"fullname": "sqlglot.expressions.false", "modulename": "sqlglot.expressions", "qualname": "false", "kind": "function", "doc": "

Returns a false Boolean expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.expressions.null": {"fullname": "sqlglot.expressions.null", "modulename": "sqlglot.expressions", "qualname": "null", "kind": "function", "doc": "

Returns a Null expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.generator": {"fullname": "sqlglot.generator", "modulename": "sqlglot.generator", "kind": "module", "doc": "

\n"}, "sqlglot.generator.Generator": {"fullname": "sqlglot.generator.Generator", "modulename": "sqlglot.generator", "qualname": "Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool): if set to True all identifiers will be delimited by the corresponding\ncharacter.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n"}, "sqlglot.generator.Generator.__init__": {"fullname": "sqlglot.generator.Generator.__init__", "modulename": "sqlglot.generator", "qualname": "Generator.__init__", "kind": "function", "doc": "

\n", "signature": "(\ttime_mapping=None,\ttime_trie=None,\tpretty=None,\tquote_start=None,\tquote_end=None,\tidentifier_start=None,\tidentifier_end=None,\tidentify=False,\tnormalize=False,\tstring_escape=None,\tidentifier_escape=None,\tpad=2,\tindent=2,\tindex_offset=0,\tunnest_column_only=False,\talias_post_tablesample=False,\tnormalize_functions='upper',\tunsupported_level=<ErrorLevel.WARN: 'WARN'>,\tnull_ordering=None,\tmax_unsupported=3,\tleading_comma=False,\tmax_text_width=80,\tcomments=True)"}, "sqlglot.generator.Generator.generate": {"fullname": "sqlglot.generator.Generator.generate", "modulename": "sqlglot.generator", "qualname": "Generator.generate", "kind": "function", "doc": "

Generates a SQL string by interpreting the given syntax tree.

\n\n

Args\n expression: the syntax tree.

\n\n

Returns\n the SQL string.

\n", "signature": "(self, expression: Optional[sqlglot.expressions.Expression]) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.unsupported": {"fullname": "sqlglot.generator.Generator.unsupported", "modulename": "sqlglot.generator", "qualname": "Generator.unsupported", "kind": "function", "doc": "

\n", "signature": "(self, message: str) -> None:", "funcdef": "def"}, "sqlglot.generator.Generator.sep": {"fullname": "sqlglot.generator.Generator.sep", "modulename": "sqlglot.generator", "qualname": "Generator.sep", "kind": "function", "doc": "

\n", "signature": "(self, sep: str = ' ') -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.seg": {"fullname": "sqlglot.generator.Generator.seg", "modulename": "sqlglot.generator", "qualname": "Generator.seg", "kind": "function", "doc": "

\n", "signature": "(self, sql: str, sep: str = ' ') -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.pad_comment": {"fullname": "sqlglot.generator.Generator.pad_comment", "modulename": "sqlglot.generator", "qualname": "Generator.pad_comment", "kind": "function", "doc": "

\n", "signature": "(self, comment: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.maybe_comment": {"fullname": "sqlglot.generator.Generator.maybe_comment", "modulename": "sqlglot.generator", "qualname": "Generator.maybe_comment", "kind": "function", "doc": "

\n", "signature": "(self, sql: str, expression: sqlglot.expressions.Expression) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.wrap": {"fullname": "sqlglot.generator.Generator.wrap", "modulename": "sqlglot.generator", "qualname": "Generator.wrap", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression | str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.no_identify": {"fullname": "sqlglot.generator.Generator.no_identify", "modulename": "sqlglot.generator", "qualname": "Generator.no_identify", "kind": "function", "doc": "

\n", "signature": "(self, func: Callable[..., str], *args, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.normalize_func": {"fullname": "sqlglot.generator.Generator.normalize_func", "modulename": "sqlglot.generator", "qualname": "Generator.normalize_func", "kind": "function", "doc": "

\n", "signature": "(self, name: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.indent": {"fullname": "sqlglot.generator.Generator.indent", "modulename": "sqlglot.generator", "qualname": "Generator.indent", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsql: str,\tlevel: int = 0,\tpad: Optional[int] = None,\tskip_first: bool = False,\tskip_last: bool = False) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.sql": {"fullname": "sqlglot.generator.Generator.sql", "modulename": "sqlglot.generator", "qualname": "Generator.sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: Union[str, sqlglot.expressions.Expression, NoneType],\tkey: Optional[str] = None,\tcomment: bool = True) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.uncache_sql": {"fullname": "sqlglot.generator.Generator.uncache_sql", "modulename": "sqlglot.generator", "qualname": "Generator.uncache_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Uncache) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.cache_sql": {"fullname": "sqlglot.generator.Generator.cache_sql", "modulename": "sqlglot.generator", "qualname": "Generator.cache_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cache) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.characterset_sql": {"fullname": "sqlglot.generator.Generator.characterset_sql", "modulename": "sqlglot.generator", "qualname": "Generator.characterset_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CharacterSet) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.column_sql": {"fullname": "sqlglot.generator.Generator.column_sql", "modulename": "sqlglot.generator", "qualname": "Generator.column_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Column) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.columndef_sql": {"fullname": "sqlglot.generator.Generator.columndef_sql", "modulename": "sqlglot.generator", "qualname": "Generator.columndef_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ColumnDef) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.columnconstraint_sql": {"fullname": "sqlglot.generator.Generator.columnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.columnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.autoincrementcolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.autoincrementcolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.autoincrementcolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, _) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.compresscolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.compresscolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.compresscolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CompressColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.generatedasidentitycolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.generatedasidentitycolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.generatedasidentitycolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.GeneratedAsIdentityColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.notnullcolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.notnullcolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.notnullcolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NotNullColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.primarykeycolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.primarykeycolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.primarykeycolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.PrimaryKeyColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.uniquecolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.uniquecolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.uniquecolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, _) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.create_sql": {"fullname": "sqlglot.generator.Generator.create_sql", "modulename": "sqlglot.generator", "qualname": "Generator.create_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Create) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.describe_sql": {"fullname": "sqlglot.generator.Generator.describe_sql", "modulename": "sqlglot.generator", "qualname": "Generator.describe_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Describe) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.prepend_ctes": {"fullname": "sqlglot.generator.Generator.prepend_ctes", "modulename": "sqlglot.generator", "qualname": "Generator.prepend_ctes", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression, sql: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.with_sql": {"fullname": "sqlglot.generator.Generator.with_sql", "modulename": "sqlglot.generator", "qualname": "Generator.with_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.With) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.cte_sql": {"fullname": "sqlglot.generator.Generator.cte_sql", "modulename": "sqlglot.generator", "qualname": "Generator.cte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CTE) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.tablealias_sql": {"fullname": "sqlglot.generator.Generator.tablealias_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tablealias_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.TableAlias) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.bitstring_sql": {"fullname": "sqlglot.generator.Generator.bitstring_sql", "modulename": "sqlglot.generator", "qualname": "Generator.bitstring_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.BitString) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.hexstring_sql": {"fullname": "sqlglot.generator.Generator.hexstring_sql", "modulename": "sqlglot.generator", "qualname": "Generator.hexstring_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.HexString) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.datatype_sql": {"fullname": "sqlglot.generator.Generator.datatype_sql", "modulename": "sqlglot.generator", "qualname": "Generator.datatype_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.directory_sql": {"fullname": "sqlglot.generator.Generator.directory_sql", "modulename": "sqlglot.generator", "qualname": "Generator.directory_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Directory) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.delete_sql": {"fullname": "sqlglot.generator.Generator.delete_sql", "modulename": "sqlglot.generator", "qualname": "Generator.delete_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Delete) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.drop_sql": {"fullname": "sqlglot.generator.Generator.drop_sql", "modulename": "sqlglot.generator", "qualname": "Generator.drop_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Drop) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.except_sql": {"fullname": "sqlglot.generator.Generator.except_sql", "modulename": "sqlglot.generator", "qualname": "Generator.except_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Except) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.except_op": {"fullname": "sqlglot.generator.Generator.except_op", "modulename": "sqlglot.generator", "qualname": "Generator.except_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Except) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.fetch_sql": {"fullname": "sqlglot.generator.Generator.fetch_sql", "modulename": "sqlglot.generator", "qualname": "Generator.fetch_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Fetch) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.filter_sql": {"fullname": "sqlglot.generator.Generator.filter_sql", "modulename": "sqlglot.generator", "qualname": "Generator.filter_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Filter) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.hint_sql": {"fullname": "sqlglot.generator.Generator.hint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.hint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Hint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.index_sql": {"fullname": "sqlglot.generator.Generator.index_sql", "modulename": "sqlglot.generator", "qualname": "Generator.index_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Index) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.identifier_sql": {"fullname": "sqlglot.generator.Generator.identifier_sql", "modulename": "sqlglot.generator", "qualname": "Generator.identifier_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Identifier) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.national_sql": {"fullname": "sqlglot.generator.Generator.national_sql", "modulename": "sqlglot.generator", "qualname": "Generator.national_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.National) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.partition_sql": {"fullname": "sqlglot.generator.Generator.partition_sql", "modulename": "sqlglot.generator", "qualname": "Generator.partition_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Partition) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.properties_sql": {"fullname": "sqlglot.generator.Generator.properties_sql", "modulename": "sqlglot.generator", "qualname": "Generator.properties_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.root_properties": {"fullname": "sqlglot.generator.Generator.root_properties", "modulename": "sqlglot.generator", "qualname": "Generator.root_properties", "kind": "function", "doc": "

\n", "signature": "(self, properties: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.properties": {"fullname": "sqlglot.generator.Generator.properties", "modulename": "sqlglot.generator", "qualname": "Generator.properties", "kind": "function", "doc": "

\n", "signature": "(\tself,\tproperties: sqlglot.expressions.Properties,\tprefix: str = '',\tsep: str = ', ',\tsuffix: str = '',\twrapped: bool = True) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.with_properties": {"fullname": "sqlglot.generator.Generator.with_properties", "modulename": "sqlglot.generator", "qualname": "Generator.with_properties", "kind": "function", "doc": "

\n", "signature": "(self, properties: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.locate_properties": {"fullname": "sqlglot.generator.Generator.locate_properties", "modulename": "sqlglot.generator", "qualname": "Generator.locate_properties", "kind": "function", "doc": "

\n", "signature": "(\tself,\tproperties: sqlglot.expressions.Properties) -> Dict[sqlglot.expressions.Properties.Location, list[sqlglot.expressions.Property]]:", "funcdef": "def"}, "sqlglot.generator.Generator.property_sql": {"fullname": "sqlglot.generator.Generator.property_sql", "modulename": "sqlglot.generator", "qualname": "Generator.property_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Property) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.likeproperty_sql": {"fullname": "sqlglot.generator.Generator.likeproperty_sql", "modulename": "sqlglot.generator", "qualname": "Generator.likeproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.LikeProperty) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.fallbackproperty_sql": {"fullname": "sqlglot.generator.Generator.fallbackproperty_sql", "modulename": "sqlglot.generator", "qualname": "Generator.fallbackproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.FallbackProperty) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.journalproperty_sql": {"fullname": "sqlglot.generator.Generator.journalproperty_sql", "modulename": "sqlglot.generator", "qualname": "Generator.journalproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.JournalProperty) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.freespaceproperty_sql": {"fullname": "sqlglot.generator.Generator.freespaceproperty_sql", "modulename": "sqlglot.generator", "qualname": "Generator.freespaceproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.FreespaceProperty) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.afterjournalproperty_sql": {"fullname": "sqlglot.generator.Generator.afterjournalproperty_sql", "modulename": "sqlglot.generator", "qualname": "Generator.afterjournalproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.AfterJournalProperty) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.checksumproperty_sql": {"fullname": "sqlglot.generator.Generator.checksumproperty_sql", "modulename": "sqlglot.generator", "qualname": "Generator.checksumproperty_sql", "kind": "function", "doc": "

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\n", "signature": "(self, expression: sqlglot.expressions.Alias) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.aliases_sql": {"fullname": "sqlglot.generator.Generator.aliases_sql", "modulename": "sqlglot.generator", "qualname": "Generator.aliases_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Aliases) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.attimezone_sql": {"fullname": "sqlglot.generator.Generator.attimezone_sql", "modulename": "sqlglot.generator", "qualname": "Generator.attimezone_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.AtTimeZone) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.add_sql": {"fullname": "sqlglot.generator.Generator.add_sql", "modulename": "sqlglot.generator", "qualname": "Generator.add_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Add) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.and_sql": {"fullname": "sqlglot.generator.Generator.and_sql", "modulename": "sqlglot.generator", "qualname": "Generator.and_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.And) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.connector_sql": {"fullname": "sqlglot.generator.Generator.connector_sql", "modulename": "sqlglot.generator", "qualname": "Generator.connector_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Connector, op: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.bitwiseand_sql": {"fullname": "sqlglot.generator.Generator.bitwiseand_sql", "modulename": "sqlglot.generator", "qualname": "Generator.bitwiseand_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.BitwiseAnd) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.bitwiseleftshift_sql": {"fullname": "sqlglot.generator.Generator.bitwiseleftshift_sql", "modulename": "sqlglot.generator", "qualname": "Generator.bitwiseleftshift_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.BitwiseLeftShift) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.bitwisenot_sql": {"fullname": "sqlglot.generator.Generator.bitwisenot_sql", "modulename": "sqlglot.generator", "qualname": "Generator.bitwisenot_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.BitwiseNot) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.bitwiseor_sql": {"fullname": "sqlglot.generator.Generator.bitwiseor_sql", "modulename": "sqlglot.generator", "qualname": "Generator.bitwiseor_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.BitwiseOr) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.bitwiserightshift_sql": {"fullname": "sqlglot.generator.Generator.bitwiserightshift_sql", "modulename": "sqlglot.generator", "qualname": "Generator.bitwiserightshift_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.BitwiseRightShift) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.bitwisexor_sql": {"fullname": "sqlglot.generator.Generator.bitwisexor_sql", "modulename": "sqlglot.generator", "qualname": "Generator.bitwisexor_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.BitwiseXor) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.cast_sql": {"fullname": "sqlglot.generator.Generator.cast_sql", "modulename": "sqlglot.generator", "qualname": "Generator.cast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cast) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.currentdate_sql": {"fullname": "sqlglot.generator.Generator.currentdate_sql", "modulename": "sqlglot.generator", "qualname": "Generator.currentdate_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CurrentDate) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.collate_sql": {"fullname": "sqlglot.generator.Generator.collate_sql", "modulename": "sqlglot.generator", "qualname": "Generator.collate_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Collate) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.command_sql": {"fullname": "sqlglot.generator.Generator.command_sql", "modulename": "sqlglot.generator", "qualname": "Generator.command_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Command) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.comment_sql": {"fullname": "sqlglot.generator.Generator.comment_sql", "modulename": "sqlglot.generator", "qualname": "Generator.comment_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Comment) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.transaction_sql": {"fullname": "sqlglot.generator.Generator.transaction_sql", "modulename": "sqlglot.generator", "qualname": "Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.commit_sql": {"fullname": "sqlglot.generator.Generator.commit_sql", "modulename": "sqlglot.generator", "qualname": "Generator.commit_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Commit) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.rollback_sql": {"fullname": "sqlglot.generator.Generator.rollback_sql", "modulename": "sqlglot.generator", "qualname": "Generator.rollback_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Rollback) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.altercolumn_sql": {"fullname": "sqlglot.generator.Generator.altercolumn_sql", "modulename": "sqlglot.generator", "qualname": "Generator.altercolumn_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.AlterColumn) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.renametable_sql": {"fullname": "sqlglot.generator.Generator.renametable_sql", "modulename": "sqlglot.generator", "qualname": "Generator.renametable_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.RenameTable) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.altertable_sql": {"fullname": "sqlglot.generator.Generator.altertable_sql", "modulename": "sqlglot.generator", "qualname": "Generator.altertable_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.AlterTable) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.droppartition_sql": {"fullname": "sqlglot.generator.Generator.droppartition_sql", "modulename": "sqlglot.generator", "qualname": "Generator.droppartition_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DropPartition) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.addconstraint_sql": {"fullname": "sqlglot.generator.Generator.addconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.addconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.AddConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.distinct_sql": {"fullname": "sqlglot.generator.Generator.distinct_sql", "modulename": "sqlglot.generator", "qualname": "Generator.distinct_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Distinct) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.ignorenulls_sql": {"fullname": "sqlglot.generator.Generator.ignorenulls_sql", "modulename": "sqlglot.generator", "qualname": "Generator.ignorenulls_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.IgnoreNulls) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.respectnulls_sql": {"fullname": "sqlglot.generator.Generator.respectnulls_sql", "modulename": "sqlglot.generator", "qualname": "Generator.respectnulls_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.RespectNulls) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.intdiv_sql": {"fullname": "sqlglot.generator.Generator.intdiv_sql", "modulename": "sqlglot.generator", "qualname": "Generator.intdiv_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.IntDiv) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.dpipe_sql": {"fullname": "sqlglot.generator.Generator.dpipe_sql", "modulename": "sqlglot.generator", "qualname": "Generator.dpipe_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DPipe) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.div_sql": {"fullname": "sqlglot.generator.Generator.div_sql", "modulename": "sqlglot.generator", "qualname": "Generator.div_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Div) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.floatdiv_sql": {"fullname": "sqlglot.generator.Generator.floatdiv_sql", "modulename": "sqlglot.generator", "qualname": "Generator.floatdiv_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.FloatDiv) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.overlaps_sql": {"fullname": "sqlglot.generator.Generator.overlaps_sql", "modulename": "sqlglot.generator", "qualname": "Generator.overlaps_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Overlaps) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.distance_sql": {"fullname": "sqlglot.generator.Generator.distance_sql", "modulename": "sqlglot.generator", "qualname": "Generator.distance_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Distance) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.dot_sql": {"fullname": "sqlglot.generator.Generator.dot_sql", "modulename": "sqlglot.generator", "qualname": "Generator.dot_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Dot) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.eq_sql": {"fullname": "sqlglot.generator.Generator.eq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.eq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.EQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.escape_sql": {"fullname": "sqlglot.generator.Generator.escape_sql", "modulename": "sqlglot.generator", "qualname": "Generator.escape_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Escape) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.glob_sql": {"fullname": "sqlglot.generator.Generator.glob_sql", "modulename": "sqlglot.generator", "qualname": "Generator.glob_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Glob) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.gt_sql": {"fullname": "sqlglot.generator.Generator.gt_sql", "modulename": "sqlglot.generator", "qualname": "Generator.gt_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.GT) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.gte_sql": {"fullname": "sqlglot.generator.Generator.gte_sql", "modulename": "sqlglot.generator", "qualname": "Generator.gte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.GTE) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.ilike_sql": {"fullname": "sqlglot.generator.Generator.ilike_sql", "modulename": "sqlglot.generator", "qualname": "Generator.ilike_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ILike) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.is_sql": {"fullname": "sqlglot.generator.Generator.is_sql", "modulename": "sqlglot.generator", "qualname": "Generator.is_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Is) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.like_sql": {"fullname": "sqlglot.generator.Generator.like_sql", "modulename": "sqlglot.generator", "qualname": "Generator.like_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Like) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.similarto_sql": {"fullname": "sqlglot.generator.Generator.similarto_sql", "modulename": "sqlglot.generator", "qualname": "Generator.similarto_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SimilarTo) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.lt_sql": {"fullname": "sqlglot.generator.Generator.lt_sql", "modulename": "sqlglot.generator", "qualname": "Generator.lt_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.LT) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.lte_sql": {"fullname": "sqlglot.generator.Generator.lte_sql", "modulename": "sqlglot.generator", "qualname": "Generator.lte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.LTE) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.mod_sql": {"fullname": "sqlglot.generator.Generator.mod_sql", "modulename": "sqlglot.generator", "qualname": "Generator.mod_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Mod) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.mul_sql": {"fullname": "sqlglot.generator.Generator.mul_sql", "modulename": "sqlglot.generator", "qualname": "Generator.mul_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Mul) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.neq_sql": {"fullname": "sqlglot.generator.Generator.neq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.neq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NEQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.nullsafeeq_sql": {"fullname": "sqlglot.generator.Generator.nullsafeeq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.nullsafeeq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NullSafeEQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.nullsafeneq_sql": {"fullname": "sqlglot.generator.Generator.nullsafeneq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.nullsafeneq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NullSafeNEQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.or_sql": {"fullname": "sqlglot.generator.Generator.or_sql", "modulename": "sqlglot.generator", "qualname": "Generator.or_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Or) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.slice_sql": {"fullname": "sqlglot.generator.Generator.slice_sql", "modulename": "sqlglot.generator", "qualname": "Generator.slice_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Slice) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.sub_sql": {"fullname": "sqlglot.generator.Generator.sub_sql", "modulename": "sqlglot.generator", "qualname": "Generator.sub_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Sub) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.trycast_sql": {"fullname": "sqlglot.generator.Generator.trycast_sql", "modulename": "sqlglot.generator", "qualname": "Generator.trycast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.TryCast) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.use_sql": {"fullname": "sqlglot.generator.Generator.use_sql", "modulename": "sqlglot.generator", "qualname": "Generator.use_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Use) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.binary": {"fullname": "sqlglot.generator.Generator.binary", "modulename": "sqlglot.generator", "qualname": "Generator.binary", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Binary, op: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.function_fallback_sql": {"fullname": "sqlglot.generator.Generator.function_fallback_sql", "modulename": "sqlglot.generator", "qualname": "Generator.function_fallback_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Func) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.func": {"fullname": "sqlglot.generator.Generator.func", "modulename": "sqlglot.generator", "qualname": "Generator.func", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\t*args: Union[str, sqlglot.expressions.Expression, NoneType]) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.format_args": {"fullname": "sqlglot.generator.Generator.format_args", "modulename": "sqlglot.generator", "qualname": "Generator.format_args", "kind": "function", "doc": "

\n", "signature": "(self, *args: Union[str, sqlglot.expressions.Expression, NoneType]) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.text_width": {"fullname": "sqlglot.generator.Generator.text_width", "modulename": "sqlglot.generator", "qualname": "Generator.text_width", "kind": "function", "doc": "

\n", "signature": "(self, args: Iterable) -> int:", "funcdef": "def"}, "sqlglot.generator.Generator.format_time": {"fullname": "sqlglot.generator.Generator.format_time", "modulename": "sqlglot.generator", "qualname": "Generator.format_time", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression) -> Optional[str]:", "funcdef": "def"}, "sqlglot.generator.Generator.expressions": {"fullname": "sqlglot.generator.Generator.expressions", "modulename": "sqlglot.generator", "qualname": "Generator.expressions", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.Expression,\tkey: Optional[str] = None,\tflat: bool = False,\tindent: bool = True,\tsep: str = ', ',\tprefix: str = '') -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.op_expressions": {"fullname": "sqlglot.generator.Generator.op_expressions", "modulename": "sqlglot.generator", "qualname": "Generator.op_expressions", "kind": "function", "doc": "

\n", "signature": "(\tself,\top: str,\texpression: sqlglot.expressions.Expression,\tflat: bool = False) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.naked_property": {"fullname": "sqlglot.generator.Generator.naked_property", "modulename": "sqlglot.generator", "qualname": "Generator.naked_property", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Property) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.set_operation": {"fullname": "sqlglot.generator.Generator.set_operation", "modulename": "sqlglot.generator", "qualname": "Generator.set_operation", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression, op: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.tag_sql": {"fullname": "sqlglot.generator.Generator.tag_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tag_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Tag) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.token_sql": {"fullname": "sqlglot.generator.Generator.token_sql", "modulename": "sqlglot.generator", "qualname": "Generator.token_sql", "kind": "function", "doc": "

\n", "signature": "(self, token_type: sqlglot.tokens.TokenType) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.userdefinedfunction_sql": {"fullname": "sqlglot.generator.Generator.userdefinedfunction_sql", "modulename": "sqlglot.generator", "qualname": "Generator.userdefinedfunction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.UserDefinedFunction) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.joinhint_sql": {"fullname": "sqlglot.generator.Generator.joinhint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.joinhint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.JoinHint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.kwarg_sql": {"fullname": "sqlglot.generator.Generator.kwarg_sql", "modulename": "sqlglot.generator", "qualname": "Generator.kwarg_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Kwarg) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.when_sql": {"fullname": "sqlglot.generator.Generator.when_sql", "modulename": "sqlglot.generator", "qualname": "Generator.when_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.When) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.merge_sql": {"fullname": "sqlglot.generator.Generator.merge_sql", "modulename": "sqlglot.generator", "qualname": "Generator.merge_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Merge) -> str:", "funcdef": "def"}, "sqlglot.helper": {"fullname": "sqlglot.helper", "modulename": "sqlglot.helper", "kind": "module", "doc": "

\n"}, "sqlglot.helper.AutoName": {"fullname": "sqlglot.helper.AutoName", "modulename": "sqlglot.helper", "qualname": "AutoName", "kind": "class", "doc": "

This is used for creating enum classes where auto() is the string form of the corresponding value's name.

\n", "bases": "enum.Enum"}, "sqlglot.helper.seq_get": {"fullname": "sqlglot.helper.seq_get", "modulename": "sqlglot.helper", "qualname": "seq_get", "kind": "function", "doc": "

Returns the value in seq at position index, or None if index is out of bounds.

\n", "signature": "(seq: Sequence[~T], index: int) -> Optional[~T]:", "funcdef": "def"}, "sqlglot.helper.ensure_list": {"fullname": "sqlglot.helper.ensure_list", "modulename": "sqlglot.helper", "qualname": "ensure_list", "kind": "function", "doc": "

Ensures that a value is a list, otherwise casts or wraps it into one.

\n\n
Arguments:
\n\n
    \n
  • value: the value of interest.
  • \n
\n\n
Returns:
\n\n
\n

The value cast as a list if it's a list or a tuple, or else the value wrapped in a list.

\n
\n", "signature": "(value):", "funcdef": "def"}, "sqlglot.helper.ensure_collection": {"fullname": "sqlglot.helper.ensure_collection", "modulename": "sqlglot.helper", "qualname": "ensure_collection", "kind": "function", "doc": "

Ensures that a value is a collection (excluding str and bytes), otherwise wraps it into a list.

\n\n
Arguments:
\n\n
    \n
  • value: the value of interest.
  • \n
\n\n
Returns:
\n\n
\n

The value if it's a collection, or else the value wrapped in a list.

\n
\n", "signature": "(value):", "funcdef": "def"}, "sqlglot.helper.csv": {"fullname": "sqlglot.helper.csv", "modulename": "sqlglot.helper", "qualname": "csv", "kind": "function", "doc": "

Formats any number of string arguments as CSV.

\n\n
Arguments:
\n\n
    \n
  • args: the string arguments to format.
  • \n
  • sep: the argument separator.
  • \n
\n\n
Returns:
\n\n
\n

The arguments formatted as a CSV string.

\n
\n", "signature": "(*args, sep: str = ', ') -> str:", "funcdef": "def"}, "sqlglot.helper.subclasses": {"fullname": "sqlglot.helper.subclasses", "modulename": "sqlglot.helper", "qualname": "subclasses", "kind": "function", "doc": "

Returns all subclasses for a collection of classes, possibly excluding some of them.

\n\n
Arguments:
\n\n
    \n
  • module_name: the name of the module to search for subclasses in.
  • \n
  • classes: class(es) we want to find the subclasses of.
  • \n
  • exclude: class(es) we want to exclude from the returned list.
  • \n
\n\n
Returns:
\n\n
\n

The target subclasses.

\n
\n", "signature": "(\tmodule_name: str,\tclasses: Union[Type, Tuple[Type, ...]],\texclude: Union[Type, Tuple[Type, ...]] = ()) -> List[Type]:", "funcdef": "def"}, "sqlglot.helper.apply_index_offset": {"fullname": "sqlglot.helper.apply_index_offset", "modulename": "sqlglot.helper", "qualname": "apply_index_offset", "kind": "function", "doc": "

Applies an offset to a given integer literal expression.

\n\n
Arguments:
\n\n
    \n
  • expressions: the expression the offset will be applied to, wrapped in a list.
  • \n
  • offset: the offset that will be applied.
  • \n
\n\n
Returns:
\n\n
\n

The original expression with the offset applied to it, wrapped in a list. If the provided\n expressions argument contains more than one expressions, it's returned unaffected.

\n
\n", "signature": "(expressions: List[Optional[~E]], offset: int) -> List[Optional[~E]]:", "funcdef": "def"}, "sqlglot.helper.camel_to_snake_case": {"fullname": "sqlglot.helper.camel_to_snake_case", "modulename": "sqlglot.helper", "qualname": "camel_to_snake_case", "kind": "function", "doc": "

Converts name from camelCase to snake_case and returns the result.

\n", "signature": "(name: str) -> str:", "funcdef": "def"}, "sqlglot.helper.while_changing": {"fullname": "sqlglot.helper.while_changing", "modulename": "sqlglot.helper", "qualname": "while_changing", "kind": "function", "doc": "

Applies a transformation to a given expression until a fix point is reached.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression to be transformed.
  • \n
  • func: the transformation to be applied.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: Optional[sqlglot.expressions.Expression],\tfunc: Callable[[Optional[sqlglot.expressions.Expression]], ~E]) -> ~E:", "funcdef": "def"}, "sqlglot.helper.tsort": {"fullname": "sqlglot.helper.tsort", "modulename": "sqlglot.helper", "qualname": "tsort", "kind": "function", "doc": "

Sorts a given directed acyclic graph in topological order.

\n\n
Arguments:
\n\n
    \n
  • dag: the graph to be sorted.
  • \n
\n\n
Returns:
\n\n
\n

A list that contains all of the graph's nodes in topological order.

\n
\n", "signature": "(dag: Dict[~T, List[~T]]) -> List[~T]:", "funcdef": "def"}, "sqlglot.helper.open_file": {"fullname": "sqlglot.helper.open_file", "modulename": "sqlglot.helper", "qualname": "open_file", "kind": "function", "doc": "

Open a file that may be compressed as gzip and return it in universal newline mode.

\n", "signature": "(file_name: str) -> <class 'TextIO'>:", "funcdef": "def"}, "sqlglot.helper.csv_reader": {"fullname": "sqlglot.helper.csv_reader", "modulename": "sqlglot.helper", "qualname": "csv_reader", "kind": "function", "doc": "

Returns a csv reader given the expression READ_CSV(name, ['delimiter', '|', ...]).

\n\n
Arguments:
\n\n
    \n
  • read_csv: a ReadCSV function call
  • \n
\n\n
Yields:
\n\n
\n

A python csv reader.

\n
\n", "signature": "(read_csv: sqlglot.expressions.ReadCSV) -> Any:", "funcdef": "def"}, "sqlglot.helper.find_new_name": {"fullname": "sqlglot.helper.find_new_name", "modulename": "sqlglot.helper", "qualname": "find_new_name", "kind": "function", "doc": "

Searches for a new name.

\n\n
Arguments:
\n\n
    \n
  • taken: a collection of taken names.
  • \n
  • base: base name to alter.
  • \n
\n\n
Returns:
\n\n
\n

The new, available name.

\n
\n", "signature": "(taken: Collection[str], base: str) -> str:", "funcdef": "def"}, "sqlglot.helper.object_to_dict": {"fullname": "sqlglot.helper.object_to_dict", "modulename": "sqlglot.helper", "qualname": "object_to_dict", "kind": "function", "doc": "

Returns a dictionary created from an object's attributes.

\n", "signature": "(obj: Any, **kwargs) -> Dict:", "funcdef": "def"}, "sqlglot.helper.split_num_words": {"fullname": "sqlglot.helper.split_num_words", "modulename": "sqlglot.helper", "qualname": "split_num_words", "kind": "function", "doc": "

Perform a split on a value and return N words as a result with None used for words that don't exist.

\n\n
Arguments:
\n\n
    \n
  • value: the value to be split.
  • \n
  • sep: the value to use to split on.
  • \n
  • min_num_words: the minimum number of words that are going to be in the result.
  • \n
  • fill_from_start: indicates that if None values should be inserted at the start or end of the list.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> split_num_words("db.table", ".", 3)\n[None, 'db', 'table']\n>>> split_num_words("db.table", ".", 3, fill_from_start=False)\n['db', 'table', None]\n>>> split_num_words("db.table", ".", 1)\n['db', 'table']\n
\n
\n
\n\n
Returns:
\n\n
\n

The list of words returned by split, possibly augmented by a number of None values.

\n
\n", "signature": "(\tvalue: str,\tsep: str,\tmin_num_words: int,\tfill_from_start: bool = True) -> List[Optional[str]]:", "funcdef": "def"}, "sqlglot.helper.is_iterable": {"fullname": "sqlglot.helper.is_iterable", "modulename": "sqlglot.helper", "qualname": "is_iterable", "kind": "function", "doc": "

Checks if the value is an iterable, excluding the types str and bytes.

\n\n
Examples:
\n\n
\n
\n
>>> is_iterable([1,2])\nTrue\n>>> is_iterable("test")\nFalse\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • value: the value to check if it is an iterable.
  • \n
\n\n
Returns:
\n\n
\n

A bool value indicating if it is an iterable.

\n
\n", "signature": "(value: Any) -> bool:", "funcdef": "def"}, "sqlglot.helper.flatten": {"fullname": "sqlglot.helper.flatten", "modulename": "sqlglot.helper", "qualname": "flatten", "kind": "function", "doc": "

Flattens an iterable that can contain both iterable and non-iterable elements. Objects of\ntype str and bytes are not regarded as iterables.

\n\n
Examples:
\n\n
\n
\n
>>> list(flatten([[1, 2], 3, {4}, (5, "bla")]))\n[1, 2, 3, 4, 5, 'bla']\n>>> list(flatten([1, 2, 3]))\n[1, 2, 3]\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • values: the value to be flattened.
  • \n
\n\n
Yields:
\n\n
\n

Non-iterable elements in values.

\n
\n", "signature": "(values: Iterable[Union[Iterable[Any], Any]]) -> Iterator[Any]:", "funcdef": "def"}, "sqlglot.helper.count_params": {"fullname": "sqlglot.helper.count_params", "modulename": "sqlglot.helper", "qualname": "count_params", "kind": "function", "doc": "

Returns the number of formal parameters expected by a function, without counting \"self\"\nand \"cls\", in case of instance and class methods, respectively.

\n", "signature": "(function: Callable) -> int:", "funcdef": "def"}, "sqlglot.helper.dict_depth": {"fullname": "sqlglot.helper.dict_depth", "modulename": "sqlglot.helper", "qualname": "dict_depth", "kind": "function", "doc": "

Get the nesting depth of a dictionary.

\n\n
For example:
\n\n
\n
\n
>>> dict_depth(None)\n0\n>>> dict_depth({})\n1\n>>> dict_depth({"a": "b"})\n1\n>>> dict_depth({"a": {}})\n2\n>>> dict_depth({"a": {"b": {}}})\n3\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • d (dict): dictionary
  • \n
\n\n
Returns:
\n\n
\n

int: depth

\n
\n", "signature": "(d: Dict) -> int:", "funcdef": "def"}, "sqlglot.helper.first": {"fullname": "sqlglot.helper.first", "modulename": "sqlglot.helper", "qualname": "first", "kind": "function", "doc": "

Returns the first element from an iterable.

\n\n

Useful for sets.

\n", "signature": "(it: Iterable[~T]) -> ~T:", "funcdef": "def"}, "sqlglot.lineage": {"fullname": "sqlglot.lineage", "modulename": "sqlglot.lineage", "kind": "module", "doc": "

\n"}, "sqlglot.lineage.Node": {"fullname": "sqlglot.lineage.Node", "modulename": "sqlglot.lineage", "qualname": "Node", "kind": "class", "doc": "

\n"}, "sqlglot.lineage.Node.__init__": {"fullname": "sqlglot.lineage.Node.__init__", "modulename": "sqlglot.lineage", "qualname": "Node.__init__", "kind": "function", "doc": "

\n", "signature": "(\tname: str,\texpression: sqlglot.expressions.Expression,\tsource: sqlglot.expressions.Expression,\tdownstream: List[sqlglot.lineage.Node] = <factory>)"}, "sqlglot.lineage.Node.walk": {"fullname": "sqlglot.lineage.Node.walk", "modulename": "sqlglot.lineage", "qualname": "Node.walk", "kind": "function", "doc": "

\n", "signature": "(self) -> Iterator[sqlglot.lineage.Node]:", "funcdef": "def"}, "sqlglot.lineage.Node.to_html": {"fullname": "sqlglot.lineage.Node.to_html", "modulename": "sqlglot.lineage", "qualname": "Node.to_html", "kind": "function", "doc": "

\n", "signature": "(self, **opts) -> sqlglot.lineage.LineageHTML:", "funcdef": "def"}, "sqlglot.lineage.lineage": {"fullname": "sqlglot.lineage.lineage", "modulename": "sqlglot.lineage", "qualname": "lineage", "kind": "function", "doc": "

Build the lineage graph for a column of a SQL query.

\n\n
Arguments:
\n\n
    \n
  • column: The column to build the lineage for.
  • \n
  • sql: The SQL string or expression.
  • \n
  • schema: The schema of tables.
  • \n
  • sources: A mapping of queries which will be used to continue building lineage.
  • \n
  • rules: Optimizer rules to apply, by default only qualifying tables and columns.
  • \n
  • dialect: The dialect of input SQL.
  • \n
\n\n
Returns:
\n\n
\n

A lineage node.

\n
\n", "signature": "(\tcolumn: str | sqlglot.expressions.Column,\tsql: str | sqlglot.expressions.Expression,\tschema: Union[Dict, sqlglot.schema.Schema, NoneType] = None,\tsources: Optional[Dict[str, str | sqlglot.expressions.Subqueryable]] = None,\trules: Sequence[Callable] = (<function qualify_tables at 0x7f29a0794820>, <function qualify_columns at 0x7f29a076b6d0>, <function expand_laterals at 0x7f29a0769ea0>),\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.lineage.Node:", "funcdef": "def"}, "sqlglot.lineage.LineageHTML": {"fullname": "sqlglot.lineage.LineageHTML", "modulename": "sqlglot.lineage", "qualname": "LineageHTML", "kind": "class", "doc": "

Node to HTML generator using vis.js.

\n\n

https://visjs.github.io/vis-network/docs/network/

\n"}, "sqlglot.lineage.LineageHTML.__init__": {"fullname": "sqlglot.lineage.LineageHTML.__init__", "modulename": "sqlglot.lineage", "qualname": "LineageHTML.__init__", "kind": "function", "doc": "

\n", "signature": "(\tnode: sqlglot.lineage.Node,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\timports: bool = True,\t**opts: Any)"}, "sqlglot.optimizer": {"fullname": "sqlglot.optimizer", "modulename": "sqlglot.optimizer", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.annotate_types": {"fullname": "sqlglot.optimizer.annotate_types", "modulename": "sqlglot.optimizer.annotate_types", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.annotate_types.annotate_types": {"fullname": "sqlglot.optimizer.annotate_types.annotate_types", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "annotate_types", "kind": "function", "doc": "

Recursively infer & annotate types in an expression syntax tree against a schema.\nAssumes that we've already executed the optimizer's qualify_columns step.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> schema = {"y": {"cola": "SMALLINT"}}\n>>> sql = "SELECT x.cola + 2.5 AS cola FROM (SELECT y.cola AS cola FROM y AS y) AS x"\n>>> annotated_expr = annotate_types(sqlglot.parse_one(sql), schema=schema)\n>>> annotated_expr.expressions[0].type.this  # Get the type of "x.cola + 2.5 AS cola"\n<Type.DOUBLE: 'DOUBLE'>\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): Expression to annotate.
  • \n
  • schema (dict|sqlglot.optimizer.Schema): Database schema.
  • \n
  • annotators (dict): Maps expression type to corresponding annotation function.
  • \n
  • coerces_to (dict): Maps expression type to set of types that it can be coerced into.
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: expression annotated with types

\n
\n", "signature": "(expression, schema=None, annotators=None, coerces_to=None):", "funcdef": "def"}, "sqlglot.optimizer.annotate_types.TypeAnnotator": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator", "kind": "class", "doc": "

\n"}, "sqlglot.optimizer.annotate_types.TypeAnnotator.__init__": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator.__init__", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator.__init__", "kind": "function", "doc": "

\n", "signature": "(schema=None, annotators=None, coerces_to=None)"}, "sqlglot.optimizer.annotate_types.TypeAnnotator.annotate": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator.annotate", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator.annotate", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.optimizer.canonicalize": {"fullname": "sqlglot.optimizer.canonicalize", "modulename": "sqlglot.optimizer.canonicalize", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.canonicalize.canonicalize": {"fullname": "sqlglot.optimizer.canonicalize.canonicalize", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "canonicalize", "kind": "function", "doc": "

Converts a sql expression into a standard form.

\n\n

This method relies on annotate_types because many of the\nconversions rely on type inference.

\n\n
Arguments:
\n\n
    \n
  • expression: The expression to canonicalize.
  • \n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.add_text_to_concat": {"fullname": "sqlglot.optimizer.canonicalize.add_text_to_concat", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "add_text_to_concat", "kind": "function", "doc": "

\n", "signature": "(node: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.coerce_type": {"fullname": "sqlglot.optimizer.canonicalize.coerce_type", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "coerce_type", "kind": "function", "doc": "

\n", "signature": "(node: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.remove_redundant_casts": {"fullname": "sqlglot.optimizer.canonicalize.remove_redundant_casts", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "remove_redundant_casts", "kind": "function", "doc": "

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.eliminate_ctes": {"fullname": "sqlglot.optimizer.eliminate_ctes", "modulename": "sqlglot.optimizer.eliminate_ctes", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_ctes.eliminate_ctes": {"fullname": "sqlglot.optimizer.eliminate_ctes.eliminate_ctes", "modulename": "sqlglot.optimizer.eliminate_ctes", "qualname": "eliminate_ctes", "kind": "function", "doc": "

Remove unused CTEs from an expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "WITH y AS (SELECT a FROM x) SELECT a FROM z"\n>>> expression = sqlglot.parse_one(sql)\n>>> eliminate_ctes(expression).sql()\n'SELECT a FROM z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_joins": {"fullname": "sqlglot.optimizer.eliminate_joins", "modulename": "sqlglot.optimizer.eliminate_joins", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_joins.eliminate_joins": {"fullname": "sqlglot.optimizer.eliminate_joins.eliminate_joins", "modulename": "sqlglot.optimizer.eliminate_joins", "qualname": "eliminate_joins", "kind": "function", "doc": "

Remove unused joins from an expression.

\n\n

This only removes joins when we know that the join condition doesn't produce duplicate rows.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT x.a FROM x LEFT JOIN (SELECT DISTINCT y.b FROM y) AS y ON x.b = y.b"\n>>> expression = sqlglot.parse_one(sql)\n>>> eliminate_joins(expression).sql()\n'SELECT x.a FROM x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_joins.join_condition": {"fullname": "sqlglot.optimizer.eliminate_joins.join_condition", "modulename": "sqlglot.optimizer.eliminate_joins", "qualname": "join_condition", "kind": "function", "doc": "

Extract the join condition from a join expression.

\n\n
Arguments:
\n\n
    \n
  • join (exp.Join)
  • \n
\n\n
Returns:
\n\n
\n

tuple[list[str], list[str], exp.Expression]:\n Tuple of (source key, join key, remaining predicate)

\n
\n", "signature": "(join):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_subqueries": {"fullname": "sqlglot.optimizer.eliminate_subqueries", "modulename": "sqlglot.optimizer.eliminate_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_subqueries.eliminate_subqueries": {"fullname": "sqlglot.optimizer.eliminate_subqueries.eliminate_subqueries", "modulename": "sqlglot.optimizer.eliminate_subqueries", "qualname": "eliminate_subqueries", "kind": "function", "doc": "

Rewrite derived tables as CTES, deduplicating if possible.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT * FROM x) AS y")\n>>> eliminate_subqueries(expression).sql()\n'WITH y AS (SELECT * FROM x) SELECT a FROM y AS y'\n
\n
\n
\n\n
This also deduplicates common subqueries:
\n\n
\n
\n
>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT * FROM x) AS y JOIN (SELECT * FROM x) AS z")\n>>> eliminate_subqueries(expression).sql()\n'WITH y AS (SELECT * FROM x) SELECT a FROM y AS y JOIN y AS z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.expand_laterals": {"fullname": "sqlglot.optimizer.expand_laterals", "modulename": "sqlglot.optimizer.expand_laterals", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.expand_laterals.expand_laterals": {"fullname": "sqlglot.optimizer.expand_laterals.expand_laterals", "modulename": "sqlglot.optimizer.expand_laterals", "qualname": "expand_laterals", "kind": "function", "doc": "

Expand lateral column alias references.

\n\n

This assumes qualify_columns as already run.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT x.a + 1 AS b, b + 1 AS c FROM x"\n>>> expression = sqlglot.parse_one(sql)\n>>> expand_laterals(expression).sql()\n'SELECT x.a + 1 AS b, x.a + 1 + 1 AS c FROM x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

optimized expression

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.expand_multi_table_selects": {"fullname": "sqlglot.optimizer.expand_multi_table_selects", "modulename": "sqlglot.optimizer.expand_multi_table_selects", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.expand_multi_table_selects.expand_multi_table_selects": {"fullname": "sqlglot.optimizer.expand_multi_table_selects.expand_multi_table_selects", "modulename": "sqlglot.optimizer.expand_multi_table_selects", "qualname": "expand_multi_table_selects", "kind": "function", "doc": "

Replace multiple FROM expressions with JOINs.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> expand_multi_table_selects(parse_one("SELECT * FROM x, y")).sql()\n'SELECT * FROM x CROSS JOIN y'\n
\n
\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.isolate_table_selects": {"fullname": "sqlglot.optimizer.isolate_table_selects", "modulename": "sqlglot.optimizer.isolate_table_selects", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.isolate_table_selects.isolate_table_selects": {"fullname": "sqlglot.optimizer.isolate_table_selects.isolate_table_selects", "modulename": "sqlglot.optimizer.isolate_table_selects", "qualname": "isolate_table_selects", "kind": "function", "doc": "

\n", "signature": "(expression, schema=None):", "funcdef": "def"}, "sqlglot.optimizer.lower_identities": {"fullname": "sqlglot.optimizer.lower_identities", "modulename": "sqlglot.optimizer.lower_identities", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.lower_identities.lower_identities": {"fullname": "sqlglot.optimizer.lower_identities.lower_identities", "modulename": "sqlglot.optimizer.lower_identities", "qualname": "lower_identities", "kind": "function", "doc": "

Convert all unquoted identifiers to lower case.

\n\n

Assuming the schema is all lower case, this essentially makes identifiers case-insensitive.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one('SELECT Bar.A AS A FROM "Foo".Bar')\n>>> lower_identities(expression).sql()\n'SELECT bar.a AS A FROM "Foo".bar'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to quote
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: quoted expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries": {"fullname": "sqlglot.optimizer.merge_subqueries", "modulename": "sqlglot.optimizer.merge_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.merge_subqueries.merge_subqueries": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_subqueries", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_subqueries", "kind": "function", "doc": "

Rewrite sqlglot AST to merge derived tables into the outer query.

\n\n

This also merges CTEs if they are selected from only once.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT x.a FROM x) JOIN y")\n>>> merge_subqueries(expression).sql()\n'SELECT x.a FROM x JOIN y'\n
\n
\n
\n\n

If leave_tables_isolated is True, this will not merge inner queries into outer\nqueries if it would result in multiple table selects in a single query:

\n\n
\n
\n
\n

expression = sqlglot.parse_one(\"SELECT a FROM (SELECT x.a FROM x) JOIN y\")\n merge_subqueries(expression, leave_tables_isolated=True).sql()\n 'SELECT a FROM (SELECT x.a FROM x) JOIN y'

\n
\n
\n
\n\n

Inspired by https://dev.mysql.com/doc/refman/8.0/en/derived-table-optimization.html

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
  • leave_tables_isolated (bool):
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries.merge_ctes": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_ctes", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_ctes", "kind": "function", "doc": "

\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries.merge_derived_tables": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_derived_tables", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_derived_tables", "kind": "function", "doc": "

\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize": {"fullname": "sqlglot.optimizer.normalize", "modulename": "sqlglot.optimizer.normalize", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.normalize.normalize": {"fullname": "sqlglot.optimizer.normalize.normalize", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalize", "kind": "function", "doc": "

Rewrite sqlglot AST into conjunctive normal form.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("(x AND y) OR z")\n>>> normalize(expression).sql()\n'(x OR z) AND (y OR z)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to normalize
  • \n
  • dnf (bool): rewrite in disjunctive normal form instead
  • \n
  • max_distance (int): the maximal estimated distance from cnf to attempt conversion
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: normalized expression

\n
\n", "signature": "(expression, dnf=False, max_distance=128):", "funcdef": "def"}, "sqlglot.optimizer.normalize.normalized": {"fullname": "sqlglot.optimizer.normalize.normalized", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalized", "kind": "function", "doc": "

\n", "signature": "(expression, dnf=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize.normalization_distance": {"fullname": "sqlglot.optimizer.normalize.normalization_distance", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalization_distance", "kind": "function", "doc": "

The difference in the number of predicates between the current expression and the normalized form.

\n\n

This is used as an estimate of the cost of the conversion which is exponential in complexity.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("(a AND b) OR (c AND d)")\n>>> normalization_distance(expression)\n4\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to compute distance
  • \n
  • dnf (bool): compute to dnf distance instead
  • \n
\n\n
Returns:
\n\n
\n

int: difference

\n
\n", "signature": "(expression, dnf=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize.distributive_law": {"fullname": "sqlglot.optimizer.normalize.distributive_law", "modulename": "sqlglot.optimizer.normalize", "qualname": "distributive_law", "kind": "function", "doc": "

x OR (y AND z) -> (x OR y) AND (x OR z)\n(x AND y) OR (y AND z) -> (x OR y) AND (x OR z) AND (y OR y) AND (y OR z)

\n", "signature": "(expression, dnf, max_distance):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins": {"fullname": "sqlglot.optimizer.optimize_joins", "modulename": "sqlglot.optimizer.optimize_joins", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.optimize_joins.optimize_joins": {"fullname": "sqlglot.optimizer.optimize_joins.optimize_joins", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "optimize_joins", "kind": "function", "doc": "

Removes cross joins if possible and reorder joins based on predicate dependencies.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> optimize_joins(parse_one("SELECT * FROM x CROSS JOIN y JOIN z ON x.a = z.a AND y.a = z.a")).sql()\n'SELECT * FROM x JOIN z ON x.a = z.a AND TRUE JOIN y ON y.a = z.a'\n
\n
\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.reorder_joins": {"fullname": "sqlglot.optimizer.optimize_joins.reorder_joins", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "reorder_joins", "kind": "function", "doc": "

Reorder joins by topological sort order based on predicate references.

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.normalize": {"fullname": "sqlglot.optimizer.optimize_joins.normalize", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "normalize", "kind": "function", "doc": "

Remove INNER and OUTER from joins as they are optional.

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.other_table_names": {"fullname": "sqlglot.optimizer.optimize_joins.other_table_names", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "other_table_names", "kind": "function", "doc": "

\n", "signature": "(join, exclude):", "funcdef": "def"}, "sqlglot.optimizer.optimizer": {"fullname": "sqlglot.optimizer.optimizer", "modulename": "sqlglot.optimizer.optimizer", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.optimizer.optimize": {"fullname": "sqlglot.optimizer.optimizer.optimize", "modulename": "sqlglot.optimizer.optimizer", "qualname": "optimize", "kind": "function", "doc": "

Rewrite a sqlglot AST into an optimized form.

\n\n
Arguments:
\n\n
    \n
  • expression: expression to optimize
  • \n
  • schema: database schema.\nThis can either be an instance of sqlglot.optimizer.Schema or a mapping in one of\nthe following forms:\n 1. {table: {col: type}}\n 2. {db: {table: {col: type}}}\n 3. {catalog: {db: {table: {col: type}}}}\nIf no schema is provided then the default schema defined at sqlgot.schema will be used
  • \n
  • db: specify the default database, as might be set by a USE DATABASE db statement
  • \n
  • catalog: specify the default catalog, as might be set by a USE CATALOG c statement
  • \n
  • dialect: The dialect to parse the sql string.
  • \n
  • rules: sequence of optimizer rules to use.\nMany of the rules require tables and columns to be qualified.\nDo not remove qualify_tables or qualify_columns from the sequence of rules unless you know\nwhat you're doing!
  • \n
  • *kwargs: If a rule has a keyword argument with a same name in *kwargs, it will be passed in.
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(\texpression: str | sqlglot.expressions.Expression,\tschema: Union[dict, sqlglot.schema.Schema, NoneType] = None,\tdb: Optional[str] = None,\tcatalog: Optional[str] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\trules: Sequence[Callable] = (<function lower_identities at 0x7f29a076a170>, <function qualify_tables at 0x7f29a0794820>, <function isolate_table_selects at 0x7f29a076a0e0>, <function qualify_columns at 0x7f29a076b6d0>, <function expand_laterals at 0x7f29a0769ea0>, <function pushdown_projections at 0x7f29a07941f0>, <function validate_qualify_columns at 0x7f29a076b760>, <function normalize at 0x7f29a0767e20>, <function unnest_subqueries at 0x7f29a0794940>, <function expand_multi_table_selects at 0x7f29a076a050>, <function pushdown_predicates at 0x7f29a076b250>, <function optimize_joins at 0x7f29a076af80>, <function eliminate_subqueries at 0x7f29a0769ab0>, <function merge_subqueries at 0x7f29a076a440>, <function eliminate_joins at 0x7f29a0767c70>, <function eliminate_ctes at 0x7f29a0767b50>, <function annotate_types at 0x7f29a0720940>, <function canonicalize at 0x7f29a0767760>),\t**kwargs):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates": {"fullname": "sqlglot.optimizer.pushdown_predicates", "modulename": "sqlglot.optimizer.pushdown_predicates", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.pushdown_predicates.pushdown_predicates": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_predicates", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_predicates", "kind": "function", "doc": "

Rewrite sqlglot AST to pushdown predicates in FROMS and JOINS

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT * FROM (SELECT * FROM x AS x) AS y WHERE y.a = 1"\n>>> expression = sqlglot.parse_one(sql)\n>>> pushdown_predicates(expression).sql()\n'SELECT * FROM (SELECT * FROM x AS x WHERE y.a = 1) AS y WHERE TRUE'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown", "kind": "function", "doc": "

\n", "signature": "(condition, sources, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown_cnf": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_cnf", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_cnf", "kind": "function", "doc": "

If the predicates are in CNF like form, we can simply replace each block in the parent.

\n", "signature": "(predicates, scope, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown_dnf": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_dnf", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_dnf", "kind": "function", "doc": "

If the predicates are in DNF form, we can only push down conditions that are in all blocks.\nAdditionally, we can't remove predicates from their original form.

\n", "signature": "(predicates, scope, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.nodes_for_predicate": {"fullname": "sqlglot.optimizer.pushdown_predicates.nodes_for_predicate", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "nodes_for_predicate", "kind": "function", "doc": "

\n", "signature": "(predicate, sources, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.replace_aliases": {"fullname": "sqlglot.optimizer.pushdown_predicates.replace_aliases", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "replace_aliases", "kind": "function", "doc": "

\n", "signature": "(source, predicate):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_projections": {"fullname": "sqlglot.optimizer.pushdown_projections", "modulename": "sqlglot.optimizer.pushdown_projections", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.pushdown_projections.DEFAULT_SELECTION": {"fullname": "sqlglot.optimizer.pushdown_projections.DEFAULT_SELECTION", "modulename": "sqlglot.optimizer.pushdown_projections", "qualname": "DEFAULT_SELECTION", "kind": "function", "doc": "

\n", "signature": "():", "funcdef": "def"}, "sqlglot.optimizer.pushdown_projections.pushdown_projections": {"fullname": "sqlglot.optimizer.pushdown_projections.pushdown_projections", "modulename": "sqlglot.optimizer.pushdown_projections", "qualname": "pushdown_projections", "kind": "function", "doc": "

Rewrite sqlglot AST to remove unused columns projections.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT y.a AS a FROM (SELECT x.a AS a, x.b AS b FROM x) AS y"\n>>> expression = sqlglot.parse_one(sql)\n>>> pushdown_projections(expression).sql()\n'SELECT y.a AS a FROM (SELECT x.a AS a FROM x) AS y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
  • remove_unused_selections (bool): remove selects that are unused
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression, schema=None, remove_unused_selections=True):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.qualify_columns.qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns.qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "qualify_columns", "kind": "function", "doc": "

Rewrite sqlglot AST to have fully qualified columns.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> schema = {"tbl": {"col": "INT"}}\n>>> expression = sqlglot.parse_one("SELECT col FROM tbl")\n>>> qualify_columns(expression, schema).sql()\n'SELECT tbl.col AS col FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to qualify
  • \n
  • schema (dict|sqlglot.optimizer.Schema): Database schema
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: qualified expression

\n
\n", "signature": "(expression, schema):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.validate_qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns.validate_qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "validate_qualify_columns", "kind": "function", "doc": "

Raise an OptimizeError if any columns aren't qualified

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.Resolver": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver", "kind": "class", "doc": "

Helper for resolving columns.

\n\n

This is a class so we can lazily load some things and easily share them across functions.

\n"}, "sqlglot.optimizer.qualify_columns.Resolver.__init__": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.__init__", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.__init__", "kind": "function", "doc": "

\n", "signature": "(scope, schema)"}, "sqlglot.optimizer.qualify_columns.Resolver.get_table": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.get_table", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.get_table", "kind": "function", "doc": "

Get the table for a column name.

\n\n
Arguments:
\n\n
    \n
  • column_name: The column name to find the table for.
  • \n
\n\n
Returns:
\n\n
\n

The table name if it can be found/inferred.

\n
\n", "signature": "(self, column_name: str) -> Optional[sqlglot.expressions.Identifier]:", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.Resolver.all_columns": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.all_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.all_columns", "kind": "variable", "doc": "

All available columns of all sources in this scope

\n"}, "sqlglot.optimizer.qualify_columns.Resolver.get_source_columns": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.get_source_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.get_source_columns", "kind": "function", "doc": "

Resolve the source columns for a given source name

\n", "signature": "(self, name, only_visible=False):", "funcdef": "def"}, "sqlglot.optimizer.qualify_tables": {"fullname": "sqlglot.optimizer.qualify_tables", "modulename": "sqlglot.optimizer.qualify_tables", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.qualify_tables.qualify_tables": {"fullname": "sqlglot.optimizer.qualify_tables.qualify_tables", "modulename": "sqlglot.optimizer.qualify_tables", "qualname": "qualify_tables", "kind": "function", "doc": "

Rewrite sqlglot AST to have fully qualified tables.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT 1 FROM tbl")\n>>> qualify_tables(expression, db="db").sql()\n'SELECT 1 FROM db.tbl AS tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to qualify
  • \n
  • db (str): Database name
  • \n
  • catalog (str): Catalog name
  • \n
  • schema: A schema to populate
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: qualified expression

\n
\n", "signature": "(expression, db=None, catalog=None, schema=None):", "funcdef": "def"}, "sqlglot.optimizer.scope": {"fullname": "sqlglot.optimizer.scope", "modulename": "sqlglot.optimizer.scope", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.scope.ScopeType": {"fullname": "sqlglot.optimizer.scope.ScopeType", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType", "kind": "class", "doc": "

An enumeration.

\n", "bases": "enum.Enum"}, "sqlglot.optimizer.scope.ScopeType.ROOT": {"fullname": "sqlglot.optimizer.scope.ScopeType.ROOT", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.ROOT", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.ROOT: 1>"}, "sqlglot.optimizer.scope.ScopeType.SUBQUERY": {"fullname": "sqlglot.optimizer.scope.ScopeType.SUBQUERY", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.SUBQUERY", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.SUBQUERY: 2>"}, "sqlglot.optimizer.scope.ScopeType.DERIVED_TABLE": {"fullname": "sqlglot.optimizer.scope.ScopeType.DERIVED_TABLE", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.DERIVED_TABLE", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.DERIVED_TABLE: 3>"}, "sqlglot.optimizer.scope.ScopeType.CTE": {"fullname": "sqlglot.optimizer.scope.ScopeType.CTE", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.CTE", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.CTE: 4>"}, "sqlglot.optimizer.scope.ScopeType.UNION": {"fullname": "sqlglot.optimizer.scope.ScopeType.UNION", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.UNION", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.UNION: 5>"}, "sqlglot.optimizer.scope.ScopeType.UDTF": {"fullname": "sqlglot.optimizer.scope.ScopeType.UDTF", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.UDTF", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.UDTF: 6>"}, "sqlglot.optimizer.scope.Scope": {"fullname": "sqlglot.optimizer.scope.Scope", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope", "kind": "class", "doc": "

Selection scope.

\n\n
Attributes:
\n\n
    \n
  • expression (exp.Select|exp.Union): Root expression of this scope
  • \n
  • sources (dict[str, exp.Table|Scope]): Mapping of source name to either\na Table expression or another Scope instance. For example:\n SELECT * FROM x {\"x\": Table(this=\"x\")}\n SELECT * FROM x AS y {\"y\": Table(this=\"x\")}\n SELECT * FROM (SELECT ...) AS y {\"y\": Scope(...)}
  • \n
  • lateral_sources (dict[str, exp.Table|Scope]): Sources from laterals\nFor example:\n SELECT c FROM x LATERAL VIEW EXPLODE (a) AS c;\nThe LATERAL VIEW EXPLODE gets x as a source.
  • \n
  • outer_column_list (list[str]): If this is a derived table or CTE, and the outer query\ndefines a column list of it's alias of this scope, this is that list of columns.\nFor example:\n SELECT * FROM (SELECT ...) AS y(col1, col2)\nThe inner query would have [\"col1\", \"col2\"] for its outer_column_list
  • \n
  • parent (Scope): Parent scope
  • \n
  • scope_type (ScopeType): Type of this scope, relative to it's parent
  • \n
  • subquery_scopes (list[Scope]): List of all child scopes for subqueries
  • \n
  • cte_scopes (list[Scope]): List of all child scopes for CTEs
  • \n
  • derived_table_scopes (list[Scope]): List of all child scopes for derived_tables
  • \n
  • udtf_scopes (list[Scope]): List of all child scopes for user defined tabular functions
  • \n
  • table_scopes (list[Scope]): derived_table_scopes + udtf_scopes, in the order that they're defined
  • \n
  • union_scopes (list[Scope, Scope]): If this Scope is for a Union expression, this will be\na list of the left and right child scopes.
  • \n
\n"}, "sqlglot.optimizer.scope.Scope.__init__": {"fullname": "sqlglot.optimizer.scope.Scope.__init__", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.__init__", "kind": "function", "doc": "

\n", "signature": "(\texpression,\tsources=None,\touter_column_list=None,\tparent=None,\tscope_type=<ScopeType.ROOT: 1>,\tlateral_sources=None)"}, "sqlglot.optimizer.scope.Scope.clear_cache": {"fullname": "sqlglot.optimizer.scope.Scope.clear_cache", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.clear_cache", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.branch": {"fullname": "sqlglot.optimizer.scope.Scope.branch", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.branch", "kind": "function", "doc": "

Branch from the current scope to a new, inner scope

\n", "signature": "(self, expression, scope_type, chain_sources=None, **kwargs):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.walk": {"fullname": "sqlglot.optimizer.scope.Scope.walk", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.walk", "kind": "function", "doc": "

\n", "signature": "(self, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.find": {"fullname": "sqlglot.optimizer.scope.Scope.find", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.find", "kind": "function", "doc": "

Returns the first node in this scope which matches at least one of the specified types.

\n\n

This does NOT traverse into subscopes.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
  • bfs (bool): True to use breadth-first search, False to use depth-first.
  • \n
\n\n
Returns:
\n\n
\n

exp.Expression: the node which matches the criteria or None if no node matching\n the criteria was found.

\n
\n", "signature": "(self, *expression_types, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.find_all": {"fullname": "sqlglot.optimizer.scope.Scope.find_all", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.find_all", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this scope and only yields those that\nmatch at least one of the specified expression types.

\n\n

This does NOT traverse into subscopes.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
  • bfs (bool): True to use breadth-first search, False to use depth-first.
  • \n
\n\n
Yields:
\n\n
\n

exp.Expression: nodes

\n
\n", "signature": "(self, *expression_types, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.replace": {"fullname": "sqlglot.optimizer.scope.Scope.replace", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.replace", "kind": "function", "doc": "

Replace old with new.

\n\n

This can be used instead of exp.Expression.replace to ensure the Scope is kept up-to-date.

\n\n
Arguments:
\n\n
    \n
  • old (exp.Expression): old node
  • \n
  • new (exp.Expression): new node
  • \n
\n", "signature": "(self, old, new):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.tables": {"fullname": "sqlglot.optimizer.scope.Scope.tables", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.tables", "kind": "variable", "doc": "

List of tables in this scope.

\n\n
Returns:
\n\n
\n

list[exp.Table]: tables

\n
\n"}, "sqlglot.optimizer.scope.Scope.ctes": {"fullname": "sqlglot.optimizer.scope.Scope.ctes", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.ctes", "kind": "variable", "doc": "

List of CTEs in this scope.

\n\n
Returns:
\n\n
\n

list[exp.CTE]: ctes

\n
\n"}, "sqlglot.optimizer.scope.Scope.derived_tables": {"fullname": "sqlglot.optimizer.scope.Scope.derived_tables", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.derived_tables", "kind": "variable", "doc": "

List of derived tables in this scope.

\n\n
For example:
\n\n
\n

SELECT * FROM (SELECT ...) <- that's a derived table

\n
\n\n
Returns:
\n\n
\n

list[exp.Subquery]: derived tables

\n
\n"}, "sqlglot.optimizer.scope.Scope.udtfs": {"fullname": "sqlglot.optimizer.scope.Scope.udtfs", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.udtfs", "kind": "variable", "doc": "

List of \"User Defined Tabular Functions\" in this scope.

\n\n
Returns:
\n\n
\n

list[exp.UDTF]: UDTFs

\n
\n"}, "sqlglot.optimizer.scope.Scope.subqueries": {"fullname": "sqlglot.optimizer.scope.Scope.subqueries", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.subqueries", "kind": "variable", "doc": "

List of subqueries in this scope.

\n\n
For example:
\n\n
\n

SELECT * FROM x WHERE a IN (SELECT ...) <- that's a subquery

\n
\n\n
Returns:
\n\n
\n

list[exp.Subqueryable]: subqueries

\n
\n"}, "sqlglot.optimizer.scope.Scope.columns": {"fullname": "sqlglot.optimizer.scope.Scope.columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.columns", "kind": "variable", "doc": "

List of columns in this scope.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances in this scope, plus any\n Columns that reference this scope from correlated subqueries.

\n
\n"}, "sqlglot.optimizer.scope.Scope.selected_sources": {"fullname": "sqlglot.optimizer.scope.Scope.selected_sources", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.selected_sources", "kind": "variable", "doc": "

Mapping of nodes and sources that are actually selected from in this scope.

\n\n

That is, all tables in a schema are selectable at any point. But a\ntable only becomes a selected source if it's included in a FROM or JOIN clause.

\n\n
Returns:
\n\n
\n

dict[str, (exp.Table|exp.Select, exp.Table|Scope)]: selected sources and nodes

\n
\n"}, "sqlglot.optimizer.scope.Scope.cte_sources": {"fullname": "sqlglot.optimizer.scope.Scope.cte_sources", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.cte_sources", "kind": "variable", "doc": "

Sources that are CTEs.

\n\n
Returns:
\n\n
\n

dict[str, Scope]: Mapping of source alias to Scope

\n
\n"}, "sqlglot.optimizer.scope.Scope.selects": {"fullname": "sqlglot.optimizer.scope.Scope.selects", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.selects", "kind": "variable", "doc": "

Select expressions of this scope.

\n\n

For example, for the following expression:\n SELECT 1 as a, 2 as b FROM x

\n\n

The outputs are the \"1 as a\" and \"2 as b\" expressions.

\n\n
Returns:
\n\n
\n

list[exp.Expression]: expressions

\n
\n"}, "sqlglot.optimizer.scope.Scope.external_columns": {"fullname": "sqlglot.optimizer.scope.Scope.external_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.external_columns", "kind": "variable", "doc": "

Columns that appear to reference sources in outer scopes.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances that don't reference\n sources in the current scope.

\n
\n"}, "sqlglot.optimizer.scope.Scope.unqualified_columns": {"fullname": "sqlglot.optimizer.scope.Scope.unqualified_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.unqualified_columns", "kind": "variable", "doc": "

Unqualified columns in the current scope.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Unqualified columns

\n
\n"}, "sqlglot.optimizer.scope.Scope.join_hints": {"fullname": "sqlglot.optimizer.scope.Scope.join_hints", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.join_hints", "kind": "variable", "doc": "

Hints that exist in the scope that reference tables

\n\n
Returns:
\n\n
\n

list[exp.JoinHint]: Join hints that are referenced within the scope

\n
\n"}, "sqlglot.optimizer.scope.Scope.source_columns": {"fullname": "sqlglot.optimizer.scope.Scope.source_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.source_columns", "kind": "function", "doc": "

Get all columns in the current scope for a particular source.

\n\n
Arguments:
\n\n
    \n
  • source_name (str): Name of the source
  • \n
\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances that reference source_name

\n
\n", "signature": "(self, source_name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.is_subquery": {"fullname": "sqlglot.optimizer.scope.Scope.is_subquery", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_subquery", "kind": "variable", "doc": "

Determine if this scope is a subquery

\n"}, "sqlglot.optimizer.scope.Scope.is_derived_table": {"fullname": "sqlglot.optimizer.scope.Scope.is_derived_table", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_derived_table", "kind": "variable", "doc": "

Determine if this scope is a derived table

\n"}, "sqlglot.optimizer.scope.Scope.is_union": {"fullname": "sqlglot.optimizer.scope.Scope.is_union", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_union", "kind": "variable", "doc": "

Determine if this scope is a union

\n"}, "sqlglot.optimizer.scope.Scope.is_cte": {"fullname": "sqlglot.optimizer.scope.Scope.is_cte", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_cte", "kind": "variable", "doc": "

Determine if this scope is a common table expression

\n"}, "sqlglot.optimizer.scope.Scope.is_root": {"fullname": "sqlglot.optimizer.scope.Scope.is_root", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_root", "kind": "variable", "doc": "

Determine if this is the root scope

\n"}, "sqlglot.optimizer.scope.Scope.is_udtf": {"fullname": "sqlglot.optimizer.scope.Scope.is_udtf", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_udtf", "kind": "variable", "doc": "

Determine if this scope is a UDTF (User Defined Table Function)

\n"}, "sqlglot.optimizer.scope.Scope.is_correlated_subquery": {"fullname": "sqlglot.optimizer.scope.Scope.is_correlated_subquery", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_correlated_subquery", "kind": "variable", "doc": "

Determine if this scope is a correlated subquery

\n"}, "sqlglot.optimizer.scope.Scope.rename_source": {"fullname": "sqlglot.optimizer.scope.Scope.rename_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.rename_source", "kind": "function", "doc": "

Rename a source in this scope

\n", "signature": "(self, old_name, new_name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.add_source": {"fullname": "sqlglot.optimizer.scope.Scope.add_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.add_source", "kind": "function", "doc": "

Add a source to this scope

\n", "signature": "(self, name, source):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.remove_source": {"fullname": "sqlglot.optimizer.scope.Scope.remove_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.remove_source", "kind": "function", "doc": "

Remove a source from this scope

\n", "signature": "(self, name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.traverse": {"fullname": "sqlglot.optimizer.scope.Scope.traverse", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.traverse", "kind": "function", "doc": "

Traverse the scope tree from this node.

\n\n
Yields:
\n\n
\n

Scope: scope instances in depth-first-search post-order

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.ref_count": {"fullname": "sqlglot.optimizer.scope.Scope.ref_count", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.ref_count", "kind": "function", "doc": "

Count the number of times each scope in this tree is referenced.

\n\n
Returns:
\n\n
\n

dict[int, int]: Mapping of Scope instance ID to reference count

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.traverse_scope": {"fullname": "sqlglot.optimizer.scope.traverse_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "traverse_scope", "kind": "function", "doc": "

Traverse an expression by it's \"scopes\".

\n\n

\"Scope\" represents the current context of a Select statement.

\n\n

This is helpful for optimizing queries, where we need more information than\nthe expression tree itself. For example, we might care about the source\nnames within a subquery. Returns a list because a generator could result in\nincomplete properties which is confusing.

\n\n
Examples:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT a FROM x) AS y")\n>>> scopes = traverse_scope(expression)\n>>> scopes[0].expression.sql(), list(scopes[0].sources)\n('SELECT a FROM x', ['x'])\n>>> scopes[1].expression.sql(), list(scopes[1].sources)\n('SELECT a FROM (SELECT a FROM x) AS y', ['y'])\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression): expression to traverse
  • \n
\n\n
Returns:
\n\n
\n

list[Scope]: scope instances

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.scope.build_scope": {"fullname": "sqlglot.optimizer.scope.build_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "build_scope", "kind": "function", "doc": "

Build a scope tree.

\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression): expression to build the scope tree for
  • \n
\n\n
Returns:
\n\n
\n

Scope: root scope

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.scope.walk_in_scope": {"fullname": "sqlglot.optimizer.scope.walk_in_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "walk_in_scope", "kind": "function", "doc": "

Returns a generator object which visits all nodes in the syntrax tree, stopping at\nnodes that start child scopes.

\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression):
  • \n
  • bfs (bool): if set to True the BFS traversal order will be applied,\notherwise the DFS traversal will be used instead.
  • \n
\n\n
Yields:
\n\n
\n

tuple[exp.Expression, Optional[exp.Expression], str]: node, parent, arg key

\n
\n", "signature": "(expression, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify": {"fullname": "sqlglot.optimizer.simplify", "modulename": "sqlglot.optimizer.simplify", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.simplify.simplify": {"fullname": "sqlglot.optimizer.simplify.simplify", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify", "kind": "function", "doc": "

Rewrite sqlglot AST to simplify expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("TRUE AND TRUE")\n>>> simplify(expression).sql()\n'TRUE'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to simplify
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: simplified expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.rewrite_between": {"fullname": "sqlglot.optimizer.simplify.rewrite_between", "modulename": "sqlglot.optimizer.simplify", "qualname": "rewrite_between", "kind": "function", "doc": "

Rewrite x between y and z to x >= y AND x <= z.

\n\n

This is done because comparison simplification is only done on lt/lte/gt/gte.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_not": {"fullname": "sqlglot.optimizer.simplify.simplify_not", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_not", "kind": "function", "doc": "

Demorgan's Law\nNOT (x OR y) -> NOT x AND NOT y\nNOT (x AND y) -> NOT x OR NOT y

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.flatten": {"fullname": "sqlglot.optimizer.simplify.flatten", "modulename": "sqlglot.optimizer.simplify", "qualname": "flatten", "kind": "function", "doc": "

A AND (B AND C) -> A AND B AND C\nA OR (B OR C) -> A OR B OR C

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_connectors": {"fullname": "sqlglot.optimizer.simplify.simplify_connectors", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_connectors", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.remove_compliments": {"fullname": "sqlglot.optimizer.simplify.remove_compliments", "modulename": "sqlglot.optimizer.simplify", "qualname": "remove_compliments", "kind": "function", "doc": "

Removing compliments.

\n\n

A AND NOT A -> FALSE\nA OR NOT A -> TRUE

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.uniq_sort": {"fullname": "sqlglot.optimizer.simplify.uniq_sort", "modulename": "sqlglot.optimizer.simplify", "qualname": "uniq_sort", "kind": "function", "doc": "

Uniq and sort a connector.

\n\n

C AND A AND B AND B -> A AND B AND C

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.absorb_and_eliminate": {"fullname": "sqlglot.optimizer.simplify.absorb_and_eliminate", "modulename": "sqlglot.optimizer.simplify", "qualname": "absorb_and_eliminate", "kind": "function", "doc": "

absorption:\n A AND (A OR B) -> A\n A OR (A AND B) -> A\n A AND (NOT A OR B) -> A AND B\n A OR (NOT A AND B) -> A OR B\nelimination:\n (A AND B) OR (A AND NOT B) -> A\n (A OR B) AND (A OR NOT B) -> A

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_literals": {"fullname": "sqlglot.optimizer.simplify.simplify_literals", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_literals", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_parens": {"fullname": "sqlglot.optimizer.simplify.simplify_parens", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_parens", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.remove_where_true": {"fullname": "sqlglot.optimizer.simplify.remove_where_true", "modulename": "sqlglot.optimizer.simplify", "qualname": "remove_where_true", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.always_true": {"fullname": "sqlglot.optimizer.simplify.always_true", "modulename": "sqlglot.optimizer.simplify", "qualname": "always_true", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.is_complement": {"fullname": "sqlglot.optimizer.simplify.is_complement", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_complement", "kind": "function", "doc": "

\n", "signature": "(a, b):", "funcdef": "def"}, "sqlglot.optimizer.simplify.eval_boolean": {"fullname": "sqlglot.optimizer.simplify.eval_boolean", "modulename": "sqlglot.optimizer.simplify", "qualname": "eval_boolean", "kind": "function", "doc": "

\n", "signature": "(expression, a, b):", "funcdef": "def"}, "sqlglot.optimizer.simplify.extract_date": {"fullname": "sqlglot.optimizer.simplify.extract_date", "modulename": "sqlglot.optimizer.simplify", "qualname": "extract_date", "kind": "function", "doc": "

\n", "signature": "(cast):", "funcdef": "def"}, "sqlglot.optimizer.simplify.extract_interval": {"fullname": "sqlglot.optimizer.simplify.extract_interval", "modulename": "sqlglot.optimizer.simplify", "qualname": "extract_interval", "kind": "function", "doc": "

\n", "signature": "(interval):", "funcdef": "def"}, "sqlglot.optimizer.simplify.date_literal": {"fullname": "sqlglot.optimizer.simplify.date_literal", "modulename": "sqlglot.optimizer.simplify", "qualname": "date_literal", "kind": "function", "doc": "

\n", "signature": "(date):", "funcdef": "def"}, "sqlglot.optimizer.simplify.boolean_literal": {"fullname": "sqlglot.optimizer.simplify.boolean_literal", "modulename": "sqlglot.optimizer.simplify", "qualname": "boolean_literal", "kind": "function", "doc": "

\n", "signature": "(condition):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries": {"fullname": "sqlglot.optimizer.unnest_subqueries", "modulename": "sqlglot.optimizer.unnest_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.unnest_subqueries.unnest_subqueries": {"fullname": "sqlglot.optimizer.unnest_subqueries.unnest_subqueries", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "unnest_subqueries", "kind": "function", "doc": "

Rewrite sqlglot AST to convert some predicates with subqueries into joins.

\n\n

Convert scalar subqueries into cross joins.\nConvert correlated or vectorized subqueries into a group by so it is not a many to many left join.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT * FROM x AS x WHERE (SELECT y.a AS a FROM y AS y WHERE x.a = y.a) = 1 ")\n>>> unnest_subqueries(expression).sql()\n'SELECT * FROM x AS x LEFT JOIN (SELECT y.a AS a FROM y AS y WHERE TRUE GROUP BY y.a) AS _u_0 ON x.a = _u_0.a WHERE _u_0.a = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to unnest
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: unnested expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries.unnest": {"fullname": "sqlglot.optimizer.unnest_subqueries.unnest", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "unnest", "kind": "function", "doc": "

\n", "signature": "(select, parent_select, sequence):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries.decorrelate": {"fullname": "sqlglot.optimizer.unnest_subqueries.decorrelate", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "decorrelate", "kind": "function", "doc": "

\n", "signature": "(select, parent_select, external_columns, sequence):", "funcdef": "def"}, "sqlglot.parser": {"fullname": "sqlglot.parser", "modulename": "sqlglot.parser", "kind": "module", "doc": "

\n"}, "sqlglot.parser.parse_var_map": {"fullname": "sqlglot.parser.parse_var_map", "modulename": "sqlglot.parser", "qualname": "parse_var_map", "kind": "function", "doc": "

\n", "signature": "(args):", "funcdef": "def"}, "sqlglot.parser.Parser": {"fullname": "sqlglot.parser.Parser", "modulename": "sqlglot.parser", "qualname": "Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n"}, "sqlglot.parser.Parser.__init__": {"fullname": "sqlglot.parser.Parser.__init__", "modulename": "sqlglot.parser", "qualname": "Parser.__init__", "kind": "function", "doc": "

\n", "signature": "(\terror_level: Optional[sqlglot.errors.ErrorLevel] = None,\terror_message_context: int = 100,\tindex_offset: int = 0,\tunnest_column_only: bool = False,\talias_post_tablesample: bool = False,\tmax_errors: int = 3,\tnull_ordering: Optional[str] = None)"}, "sqlglot.parser.Parser.reset": {"fullname": "sqlglot.parser.Parser.reset", "modulename": "sqlglot.parser", "qualname": "Parser.reset", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.parser.Parser.parse": {"fullname": "sqlglot.parser.Parser.parse", "modulename": "sqlglot.parser", "qualname": "Parser.parse", "kind": "function", "doc": "

Parses a list of tokens and returns a list of syntax trees, one tree\nper parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • raw_tokens: the list of tokens.
  • \n
  • sql: the original SQL string, used to produce helpful debug messages.
  • \n
\n\n
Returns:
\n\n
\n

The list of syntax trees.

\n
\n", "signature": "(\tself,\traw_tokens: List[sqlglot.tokens.Token],\tsql: Optional[str] = None) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parser.Parser.parse_into": {"fullname": "sqlglot.parser.Parser.parse_into", "modulename": "sqlglot.parser", "qualname": "Parser.parse_into", "kind": "function", "doc": "

Parses a list of tokens into a given Expression type. If a collection of Expression\ntypes is given instead, this method will try to parse the token list into each one\nof them, stopping at the first for which the parsing succeeds.

\n\n
Arguments:
\n\n
    \n
  • expression_types: the expression type(s) to try and parse the token list into.
  • \n
  • raw_tokens: the list of tokens.
  • \n
  • sql: the original SQL string, used to produce helpful debug messages.
  • \n
\n\n
Returns:
\n\n
\n

The target Expression.

\n
\n", "signature": "(\tself,\texpression_types: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]]],\traw_tokens: List[sqlglot.tokens.Token],\tsql: Optional[str] = None) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parser.Parser.check_errors": {"fullname": "sqlglot.parser.Parser.check_errors", "modulename": "sqlglot.parser", "qualname": "Parser.check_errors", "kind": "function", "doc": "

Logs or raises any found errors, depending on the chosen error level setting.

\n", "signature": "(self) -> None:", "funcdef": "def"}, "sqlglot.parser.Parser.raise_error": {"fullname": "sqlglot.parser.Parser.raise_error", "modulename": "sqlglot.parser", "qualname": "Parser.raise_error", "kind": "function", "doc": "

Appends an error in the list of recorded errors or raises it, depending on the chosen\nerror level setting.

\n", "signature": "(self, message: str, token: Optional[sqlglot.tokens.Token] = None) -> None:", "funcdef": "def"}, "sqlglot.parser.Parser.expression": {"fullname": "sqlglot.parser.Parser.expression", "modulename": "sqlglot.parser", "qualname": "Parser.expression", "kind": "function", "doc": "

Creates a new, validated Expression.

\n\n
Arguments:
\n\n
    \n
  • exp_class: the expression class to instantiate.
  • \n
  • comments: an optional list of comments to attach to the expression.
  • \n
  • kwargs: the arguments to set for the expression along with their respective values.
  • \n
\n\n
Returns:
\n\n
\n

The target expression.

\n
\n", "signature": "(\tself,\texp_class: Type[sqlglot.expressions.Expression],\tcomments: Optional[List[str]] = None,\t**kwargs) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.parser.Parser.validate_expression": {"fullname": "sqlglot.parser.Parser.validate_expression", "modulename": "sqlglot.parser", "qualname": "Parser.validate_expression", "kind": "function", "doc": "

Validates an already instantiated expression, making sure that all its mandatory arguments\nare set.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression to validate.
  • \n
  • args: an optional list of items that was used to instantiate the expression, if it's a Func.
  • \n
\n", "signature": "(\tself,\texpression: sqlglot.expressions.Expression,\targs: Optional[List] = None) -> None:", "funcdef": "def"}, "sqlglot.planner": {"fullname": "sqlglot.planner", "modulename": "sqlglot.planner", "kind": "module", "doc": "

\n"}, "sqlglot.planner.Plan": {"fullname": "sqlglot.planner.Plan", "modulename": "sqlglot.planner", "qualname": "Plan", "kind": "class", "doc": "

\n"}, "sqlglot.planner.Plan.__init__": {"fullname": "sqlglot.planner.Plan.__init__", "modulename": "sqlglot.planner", "qualname": "Plan.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.planner.Step": {"fullname": "sqlglot.planner.Step", "modulename": "sqlglot.planner", "qualname": "Step", "kind": "class", "doc": "

\n"}, "sqlglot.planner.Step.from_expression": {"fullname": "sqlglot.planner.Step.from_expression", "modulename": "sqlglot.planner", "qualname": "Step.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Step.add_dependency": {"fullname": "sqlglot.planner.Step.add_dependency", "modulename": "sqlglot.planner", "qualname": "Step.add_dependency", "kind": "function", "doc": "

\n", "signature": "(self, dependency: sqlglot.planner.Step) -> None:", "funcdef": "def"}, "sqlglot.planner.Step.to_s": {"fullname": "sqlglot.planner.Step.to_s", "modulename": "sqlglot.planner", "qualname": "Step.to_s", "kind": "function", "doc": "

\n", "signature": "(self, level: int = 0) -> str:", "funcdef": "def"}, "sqlglot.planner.Scan": {"fullname": "sqlglot.planner.Scan", "modulename": "sqlglot.planner", "qualname": "Scan", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Scan.from_expression": {"fullname": "sqlglot.planner.Scan.from_expression", "modulename": "sqlglot.planner", "qualname": "Scan.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Join": {"fullname": "sqlglot.planner.Join", "modulename": "sqlglot.planner", "qualname": "Join", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Join.from_joins": {"fullname": "sqlglot.planner.Join.from_joins", "modulename": "sqlglot.planner", "qualname": "Join.from_joins", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tjoins: Iterable[sqlglot.expressions.Join],\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Aggregate": {"fullname": "sqlglot.planner.Aggregate", "modulename": "sqlglot.planner", "qualname": "Aggregate", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Sort": {"fullname": "sqlglot.planner.Sort", "modulename": "sqlglot.planner", "qualname": "Sort", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.SetOperation": {"fullname": "sqlglot.planner.SetOperation", "modulename": "sqlglot.planner", "qualname": "SetOperation", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.SetOperation.__init__": {"fullname": "sqlglot.planner.SetOperation.__init__", "modulename": "sqlglot.planner", "qualname": "SetOperation.__init__", "kind": "function", "doc": "

\n", "signature": "(\top: Type[sqlglot.expressions.Expression],\tleft: str | None,\tright: str | None,\tdistinct: bool = False)"}, "sqlglot.planner.SetOperation.from_expression": {"fullname": "sqlglot.planner.SetOperation.from_expression", "modulename": "sqlglot.planner", "qualname": "SetOperation.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.schema.Schema": {"fullname": "sqlglot.schema.Schema", "modulename": "sqlglot.schema", "qualname": "Schema", "kind": "class", "doc": "

Abstract base class for database schemas

\n", "bases": "abc.ABC"}, "sqlglot.schema.Schema.add_table": {"fullname": "sqlglot.schema.Schema.add_table", "modulename": "sqlglot.schema", "qualname": "Schema.add_table", "kind": "function", "doc": "

Register or update a table. Some implementing classes may require column information to also be provided.

\n\n
Arguments:
\n\n
    \n
  • table: table expression instance or string representing the table.
  • \n
  • column_mapping: a column mapping that describes the structure of the table.
  • \n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn_mapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType] = None) -> None:", "funcdef": "def"}, "sqlglot.schema.Schema.column_names": {"fullname": "sqlglot.schema.Schema.column_names", "modulename": "sqlglot.schema", "qualname": "Schema.column_names", "kind": "function", "doc": "

Get the column names for a table.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance.
  • \n
  • only_visible: whether to include invisible columns.
  • \n
\n\n
Returns:
\n\n
\n

The list of column names.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tonly_visible: bool = False) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.Schema.get_column_type": {"fullname": "sqlglot.schema.Schema.get_column_type", "modulename": "sqlglot.schema", "qualname": "Schema.get_column_type", "kind": "function", "doc": "

Get the sqlglot.exp.DataType type of a column in the schema.

\n\n
Arguments:
\n\n
    \n
  • table: the source table.
  • \n
  • column: the target column.
  • \n
\n\n
Returns:
\n\n
\n

The resulting column type.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn: sqlglot.expressions.Column) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.schema.Schema.supported_table_args": {"fullname": "sqlglot.schema.Schema.supported_table_args", "modulename": "sqlglot.schema", "qualname": "Schema.supported_table_args", "kind": "variable", "doc": "

Table arguments this schema support, e.g. (\"this\", \"db\", \"catalog\")

\n", "annotation": ": Tuple[str, ...]"}, "sqlglot.schema.AbstractMappingSchema": {"fullname": "sqlglot.schema.AbstractMappingSchema", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema", "kind": "class", "doc": "

Abstract base class for generic types.

\n\n

A generic type is typically declared by inheriting from\nthis class parameterized with one or more type variables.\nFor example, a generic mapping type might be defined as::

\n\n

class Mapping(Generic[KT, VT]):\n def __getitem__(self, key: KT) -> VT:\n ...\n # Etc.

\n\n

This class can then be used as follows::

\n\n

def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT:\n try:\n return mapping[key]\n except KeyError:\n return default

\n", "bases": "typing.Generic[~T]"}, "sqlglot.schema.AbstractMappingSchema.__init__": {"fullname": "sqlglot.schema.AbstractMappingSchema.__init__", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.__init__", "kind": "function", "doc": "

\n", "signature": "(mapping: dict | None = None)"}, "sqlglot.schema.AbstractMappingSchema.table_parts": {"fullname": "sqlglot.schema.AbstractMappingSchema.table_parts", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.table_parts", "kind": "function", "doc": "

\n", "signature": "(self, table: sqlglot.expressions.Table) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.AbstractMappingSchema.find": {"fullname": "sqlglot.schema.AbstractMappingSchema.find", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.find", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table,\ttrie: Optional[Dict] = None,\traise_on_missing: bool = True) -> Optional[~T]:", "funcdef": "def"}, "sqlglot.schema.MappingSchema": {"fullname": "sqlglot.schema.MappingSchema", "modulename": "sqlglot.schema", "qualname": "MappingSchema", "kind": "class", "doc": "

Schema based on a nested mapping.

\n\n
Arguments:
\n\n
    \n
  • schema (dict): Mapping in one of the following forms:\n
      \n
    1. {table: {col: type}}
    2. \n
    3. {db: {table: {col: type}}}
    4. \n
    5. {catalog: {db: {table: {col: type}}}}
    6. \n
    7. None - Tables will be added later
    8. \n
  • \n
  • visible (dict): Optional mapping of which columns in the schema are visible. If not provided, all columns\nare assumed to be visible. The nesting should mirror that of the schema:\n
      \n
    1. {table: set(cols)}}
    2. \n
    3. {db: {table: set(cols)}}}
    4. \n
    5. {catalog: {db: {table: set(*cols)}}}}
    6. \n
  • \n
  • dialect (str): The dialect to be used for custom type mappings.
  • \n
\n", "bases": "sqlglot.schema.AbstractMappingSchema[typing.Dict[str, str]], Schema"}, "sqlglot.schema.MappingSchema.__init__": {"fullname": "sqlglot.schema.MappingSchema.__init__", "modulename": "sqlglot.schema", "qualname": "MappingSchema.__init__", "kind": "function", "doc": "

\n", "signature": "(\tschema: Optional[Dict] = None,\tvisible: Optional[Dict] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None)"}, "sqlglot.schema.MappingSchema.from_mapping_schema": {"fullname": "sqlglot.schema.MappingSchema.from_mapping_schema", "modulename": "sqlglot.schema", "qualname": "MappingSchema.from_mapping_schema", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tmapping_schema: sqlglot.schema.MappingSchema) -> sqlglot.schema.MappingSchema:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.copy": {"fullname": "sqlglot.schema.MappingSchema.copy", "modulename": "sqlglot.schema", "qualname": "MappingSchema.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.schema.MappingSchema:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.add_table": {"fullname": "sqlglot.schema.MappingSchema.add_table", "modulename": "sqlglot.schema", "qualname": "MappingSchema.add_table", "kind": "function", "doc": "

Register or update a table. Updates are only performed if a new column mapping is provided.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance or string representing the table.
  • \n
  • column_mapping: a column mapping that describes the structure of the table.
  • \n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn_mapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType] = None) -> None:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.column_names": {"fullname": "sqlglot.schema.MappingSchema.column_names", "modulename": "sqlglot.schema", "qualname": "MappingSchema.column_names", "kind": "function", "doc": "

Get the column names for a table.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance.
  • \n
  • only_visible: whether to include invisible columns.
  • \n
\n\n
Returns:
\n\n
\n

The list of column names.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tonly_visible: bool = False) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.get_column_type": {"fullname": "sqlglot.schema.MappingSchema.get_column_type", "modulename": "sqlglot.schema", "qualname": "MappingSchema.get_column_type", "kind": "function", "doc": "

Get the sqlglot.exp.DataType type of a column in the schema.

\n\n
Arguments:
\n\n
    \n
  • table: the source table.
  • \n
  • column: the target column.
  • \n
\n\n
Returns:
\n\n
\n

The resulting column type.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn: sqlglot.expressions.Column | str) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.schema.ensure_schema": {"fullname": "sqlglot.schema.ensure_schema", "modulename": "sqlglot.schema", "qualname": "ensure_schema", "kind": "function", "doc": "

\n", "signature": "(schema: Any) -> sqlglot.schema.Schema:", "funcdef": "def"}, "sqlglot.schema.ensure_column_mapping": {"fullname": "sqlglot.schema.ensure_column_mapping", "modulename": "sqlglot.schema", "qualname": "ensure_column_mapping", "kind": "function", "doc": "

\n", "signature": "(\tmapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType]):", "funcdef": "def"}, "sqlglot.schema.flatten_schema": {"fullname": "sqlglot.schema.flatten_schema", "modulename": "sqlglot.schema", "qualname": "flatten_schema", "kind": "function", "doc": "

\n", "signature": "(\tschema: Dict,\tdepth: int,\tkeys: Optional[List[str]] = None) -> List[List[str]]:", "funcdef": "def"}, "sqlglot.serde": {"fullname": "sqlglot.serde", "modulename": "sqlglot.serde", "kind": "module", "doc": "

\n"}, "sqlglot.serde.dump": {"fullname": "sqlglot.serde.dump", "modulename": "sqlglot.serde", "qualname": "dump", "kind": "function", "doc": "

Recursively dump an AST into a JSON-serializable dict.

\n", "signature": "(\tnode: Union[List[ForwardRef('Node')], sqlglot.expressions.DataType.Type, sqlglot.expressions.Expression, dict, list, str, float, int, bool]) -> Union[dict, list, str, float, int, bool]:", "funcdef": "def"}, "sqlglot.serde.load": {"fullname": "sqlglot.serde.load", "modulename": "sqlglot.serde", "qualname": "load", "kind": "function", "doc": "

Recursively load a dict (as returned by dump) into an AST.

\n", "signature": "(\tobj: Union[dict, list, str, float, int, bool]) -> Union[List[ForwardRef('Node')], sqlglot.expressions.DataType.Type, sqlglot.expressions.Expression, dict, list, str, float, int, bool]:", "funcdef": "def"}, "sqlglot.time": {"fullname": "sqlglot.time", "modulename": "sqlglot.time", "kind": "module", "doc": "

\n"}, "sqlglot.time.format_time": {"fullname": "sqlglot.time.format_time", "modulename": "sqlglot.time", "qualname": "format_time", "kind": "function", "doc": "

Converts a time string given a mapping.

\n\n
Examples:
\n\n
\n
\n
>>> format_time("%Y", {"%Y": "YYYY"})\n'YYYY'\n
\n
\n \n

Args:\n mapping: dictionary of time format to target time format.\n trie: optional trie, can be passed in for performance.

\n \n

Returns:\n The converted time string.

\n
\n", "signature": "(\tstring: str,\tmapping: Dict[str, str],\ttrie: Optional[Dict] = None) -> Optional[str]:", "funcdef": "def"}, "sqlglot.tokens": {"fullname": "sqlglot.tokens", "modulename": "sqlglot.tokens", "kind": "module", "doc": "

\n"}, "sqlglot.tokens.TokenType": {"fullname": "sqlglot.tokens.TokenType", "modulename": "sqlglot.tokens", "qualname": "TokenType", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.tokens.TokenType.L_PAREN": {"fullname": "sqlglot.tokens.TokenType.L_PAREN", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_PAREN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_PAREN: 'L_PAREN'>"}, "sqlglot.tokens.TokenType.R_PAREN": {"fullname": "sqlglot.tokens.TokenType.R_PAREN", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_PAREN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_PAREN: 'R_PAREN'>"}, "sqlglot.tokens.TokenType.L_BRACKET": {"fullname": "sqlglot.tokens.TokenType.L_BRACKET", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_BRACKET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_BRACKET: 'L_BRACKET'>"}, "sqlglot.tokens.TokenType.R_BRACKET": {"fullname": "sqlglot.tokens.TokenType.R_BRACKET", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_BRACKET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_BRACKET: 'R_BRACKET'>"}, "sqlglot.tokens.TokenType.L_BRACE": {"fullname": "sqlglot.tokens.TokenType.L_BRACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_BRACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_BRACE: 'L_BRACE'>"}, "sqlglot.tokens.TokenType.R_BRACE": {"fullname": "sqlglot.tokens.TokenType.R_BRACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_BRACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_BRACE: 'R_BRACE'>"}, "sqlglot.tokens.TokenType.COMMA": {"fullname": "sqlglot.tokens.TokenType.COMMA", "modulename": "sqlglot.tokens", "qualname": "TokenType.COMMA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COMMA: 'COMMA'>"}, "sqlglot.tokens.TokenType.DOT": {"fullname": "sqlglot.tokens.TokenType.DOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.DOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DOT: 'DOT'>"}, "sqlglot.tokens.TokenType.DASH": {"fullname": "sqlglot.tokens.TokenType.DASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.DASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DASH: 'DASH'>"}, "sqlglot.tokens.TokenType.PLUS": {"fullname": "sqlglot.tokens.TokenType.PLUS", "modulename": "sqlglot.tokens", "qualname": "TokenType.PLUS", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PLUS: 'PLUS'>"}, "sqlglot.tokens.TokenType.COLON": {"fullname": "sqlglot.tokens.TokenType.COLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.COLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COLON: 'COLON'>"}, "sqlglot.tokens.TokenType.DCOLON": {"fullname": "sqlglot.tokens.TokenType.DCOLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.DCOLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DCOLON: 'DCOLON'>"}, "sqlglot.tokens.TokenType.SEMICOLON": {"fullname": "sqlglot.tokens.TokenType.SEMICOLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.SEMICOLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SEMICOLON: 'SEMICOLON'>"}, "sqlglot.tokens.TokenType.STAR": {"fullname": "sqlglot.tokens.TokenType.STAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.STAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.STAR: 'STAR'>"}, "sqlglot.tokens.TokenType.BACKSLASH": {"fullname": "sqlglot.tokens.TokenType.BACKSLASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.BACKSLASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BACKSLASH: 'BACKSLASH'>"}, "sqlglot.tokens.TokenType.SLASH": {"fullname": "sqlglot.tokens.TokenType.SLASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.SLASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SLASH: 'SLASH'>"}, "sqlglot.tokens.TokenType.LT": {"fullname": "sqlglot.tokens.TokenType.LT", "modulename": "sqlglot.tokens", "qualname": "TokenType.LT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LT: 'LT'>"}, "sqlglot.tokens.TokenType.LTE": {"fullname": "sqlglot.tokens.TokenType.LTE", "modulename": "sqlglot.tokens", "qualname": "TokenType.LTE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LTE: 'LTE'>"}, "sqlglot.tokens.TokenType.GT": {"fullname": "sqlglot.tokens.TokenType.GT", "modulename": "sqlglot.tokens", "qualname": "TokenType.GT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.GT: 'GT'>"}, "sqlglot.tokens.TokenType.GTE": {"fullname": "sqlglot.tokens.TokenType.GTE", "modulename": "sqlglot.tokens", "qualname": "TokenType.GTE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.GTE: 'GTE'>"}, "sqlglot.tokens.TokenType.NOT": {"fullname": "sqlglot.tokens.TokenType.NOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.NOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NOT: 'NOT'>"}, "sqlglot.tokens.TokenType.EQ": {"fullname": "sqlglot.tokens.TokenType.EQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.EQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.EQ: 'EQ'>"}, "sqlglot.tokens.TokenType.NEQ": {"fullname": "sqlglot.tokens.TokenType.NEQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.NEQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NEQ: 'NEQ'>"}, "sqlglot.tokens.TokenType.NULLSAFE_EQ": {"fullname": "sqlglot.tokens.TokenType.NULLSAFE_EQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.NULLSAFE_EQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>"}, "sqlglot.tokens.TokenType.AND": {"fullname": "sqlglot.tokens.TokenType.AND", "modulename": "sqlglot.tokens", "qualname": "TokenType.AND", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AND: 'AND'>"}, "sqlglot.tokens.TokenType.OR": {"fullname": "sqlglot.tokens.TokenType.OR", "modulename": "sqlglot.tokens", "qualname": "TokenType.OR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.OR: 'OR'>"}, "sqlglot.tokens.TokenType.AMP": {"fullname": "sqlglot.tokens.TokenType.AMP", "modulename": "sqlglot.tokens", "qualname": "TokenType.AMP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AMP: 'AMP'>"}, "sqlglot.tokens.TokenType.DPIPE": {"fullname": "sqlglot.tokens.TokenType.DPIPE", "modulename": "sqlglot.tokens", "qualname": "TokenType.DPIPE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DPIPE: 'DPIPE'>"}, "sqlglot.tokens.TokenType.PIPE": {"fullname": "sqlglot.tokens.TokenType.PIPE", "modulename": "sqlglot.tokens", "qualname": "TokenType.PIPE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PIPE: 'PIPE'>"}, "sqlglot.tokens.TokenType.CARET": {"fullname": "sqlglot.tokens.TokenType.CARET", "modulename": "sqlglot.tokens", "qualname": "TokenType.CARET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.CARET: 'CARET'>"}, "sqlglot.tokens.TokenType.TILDA": {"fullname": "sqlglot.tokens.TokenType.TILDA", "modulename": "sqlglot.tokens", "qualname": "TokenType.TILDA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TILDA: 'TILDA'>"}, "sqlglot.tokens.TokenType.ARROW": {"fullname": "sqlglot.tokens.TokenType.ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ARROW: 'ARROW'>"}, "sqlglot.tokens.TokenType.DARROW": {"fullname": "sqlglot.tokens.TokenType.DARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.DARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DARROW: 'DARROW'>"}, "sqlglot.tokens.TokenType.FARROW": {"fullname": "sqlglot.tokens.TokenType.FARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.FARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.FARROW: 'FARROW'>"}, "sqlglot.tokens.TokenType.HASH": {"fullname": "sqlglot.tokens.TokenType.HASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.HASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.HASH: 'HASH'>"}, "sqlglot.tokens.TokenType.HASH_ARROW": {"fullname": "sqlglot.tokens.TokenType.HASH_ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.HASH_ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.HASH_ARROW: 'HASH_ARROW'>"}, "sqlglot.tokens.TokenType.DHASH_ARROW": {"fullname": "sqlglot.tokens.TokenType.DHASH_ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.DHASH_ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DHASH_ARROW: 'DHASH_ARROW'>"}, "sqlglot.tokens.TokenType.LR_ARROW": {"fullname": "sqlglot.tokens.TokenType.LR_ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.LR_ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LR_ARROW: 'LR_ARROW'>"}, "sqlglot.tokens.TokenType.DOLLAR": {"fullname": "sqlglot.tokens.TokenType.DOLLAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.DOLLAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DOLLAR: 'DOLLAR'>"}, "sqlglot.tokens.TokenType.PARAMETER": {"fullname": "sqlglot.tokens.TokenType.PARAMETER", "modulename": "sqlglot.tokens", "qualname": "TokenType.PARAMETER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PARAMETER: 'PARAMETER'>"}, "sqlglot.tokens.TokenType.SESSION_PARAMETER": {"fullname": "sqlglot.tokens.TokenType.SESSION_PARAMETER", "modulename": "sqlglot.tokens", "qualname": "TokenType.SESSION_PARAMETER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SESSION_PARAMETER: 'SESSION_PARAMETER'>"}, "sqlglot.tokens.TokenType.NATIONAL": {"fullname": "sqlglot.tokens.TokenType.NATIONAL", "modulename": "sqlglot.tokens", "qualname": "TokenType.NATIONAL", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NATIONAL: 'NATIONAL'>"}, "sqlglot.tokens.TokenType.BLOCK_START": {"fullname": "sqlglot.tokens.TokenType.BLOCK_START", "modulename": "sqlglot.tokens", "qualname": "TokenType.BLOCK_START", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BLOCK_START: 'BLOCK_START'>"}, "sqlglot.tokens.TokenType.BLOCK_END": {"fullname": "sqlglot.tokens.TokenType.BLOCK_END", "modulename": "sqlglot.tokens", "qualname": "TokenType.BLOCK_END", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BLOCK_END: 'BLOCK_END'>"}, "sqlglot.tokens.TokenType.SPACE": {"fullname": "sqlglot.tokens.TokenType.SPACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.SPACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SPACE: 'SPACE'>"}, "sqlglot.tokens.TokenType.BREAK": {"fullname": "sqlglot.tokens.TokenType.BREAK", "modulename": "sqlglot.tokens", "qualname": "TokenType.BREAK", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BREAK: 'BREAK'>"}, "sqlglot.tokens.TokenType.STRING": {"fullname": "sqlglot.tokens.TokenType.STRING", "modulename": "sqlglot.tokens", "qualname": "TokenType.STRING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.STRING: 'STRING'>"}, "sqlglot.tokens.TokenType.NUMBER": {"fullname": "sqlglot.tokens.TokenType.NUMBER", "modulename": "sqlglot.tokens", "qualname": "TokenType.NUMBER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NUMBER: 'NUMBER'>"}, "sqlglot.tokens.TokenType.IDENTIFIER": {"fullname": "sqlglot.tokens.TokenType.IDENTIFIER", "modulename": "sqlglot.tokens", "qualname": "TokenType.IDENTIFIER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.IDENTIFIER: 'IDENTIFIER'>"}, "sqlglot.tokens.TokenType.DATABASE": {"fullname": "sqlglot.tokens.TokenType.DATABASE", "modulename": "sqlglot.tokens", "qualname": "TokenType.DATABASE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DATABASE: 'DATABASE'>"}, "sqlglot.tokens.TokenType.COLUMN": {"fullname": "sqlglot.tokens.TokenType.COLUMN", "modulename": "sqlglot.tokens", "qualname": "TokenType.COLUMN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COLUMN: 'COLUMN'>"}, "sqlglot.tokens.TokenType.COLUMN_DEF": {"fullname": "sqlglot.tokens.TokenType.COLUMN_DEF", "modulename": "sqlglot.tokens", "qualname": "TokenType.COLUMN_DEF", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COLUMN_DEF: 'COLUMN_DEF'>"}, "sqlglot.tokens.TokenType.SCHEMA": {"fullname": "sqlglot.tokens.TokenType.SCHEMA", "modulename": "sqlglot.tokens", "qualname": "TokenType.SCHEMA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SCHEMA: 'SCHEMA'>"}, "sqlglot.tokens.TokenType.TABLE": {"fullname": "sqlglot.tokens.TokenType.TABLE", "modulename": "sqlglot.tokens", "qualname": "TokenType.TABLE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TABLE: 'TABLE'>"}, "sqlglot.tokens.TokenType.VAR": {"fullname": "sqlglot.tokens.TokenType.VAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.VAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VAR: 'VAR'>"}, "sqlglot.tokens.TokenType.BIT_STRING": {"fullname": "sqlglot.tokens.TokenType.BIT_STRING", "modulename": "sqlglot.tokens", "qualname": "TokenType.BIT_STRING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BIT_STRING: 'BIT_STRING'>"}, "sqlglot.tokens.TokenType.HEX_STRING": {"fullname": "sqlglot.tokens.TokenType.HEX_STRING", "modulename": "sqlglot.tokens", "qualname": "TokenType.HEX_STRING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.HEX_STRING: 'HEX_STRING'>"}, "sqlglot.tokens.TokenType.BYTE_STRING": {"fullname": "sqlglot.tokens.TokenType.BYTE_STRING", "modulename": "sqlglot.tokens", "qualname": "TokenType.BYTE_STRING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BYTE_STRING: 'BYTE_STRING'>"}, "sqlglot.tokens.TokenType.BOOLEAN": {"fullname": "sqlglot.tokens.TokenType.BOOLEAN", "modulename": "sqlglot.tokens", "qualname": "TokenType.BOOLEAN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BOOLEAN: 'BOOLEAN'>"}, "sqlglot.tokens.TokenType.TINYINT": {"fullname": "sqlglot.tokens.TokenType.TINYINT", "modulename": "sqlglot.tokens", "qualname": "TokenType.TINYINT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TINYINT: 'TINYINT'>"}, "sqlglot.tokens.TokenType.SMALLINT": {"fullname": "sqlglot.tokens.TokenType.SMALLINT", "modulename": "sqlglot.tokens", "qualname": "TokenType.SMALLINT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SMALLINT: 'SMALLINT'>"}, "sqlglot.tokens.TokenType.INT": {"fullname": "sqlglot.tokens.TokenType.INT", "modulename": "sqlglot.tokens", "qualname": "TokenType.INT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.INT: 'INT'>"}, "sqlglot.tokens.TokenType.BIGINT": {"fullname": "sqlglot.tokens.TokenType.BIGINT", "modulename": "sqlglot.tokens", "qualname": "TokenType.BIGINT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BIGINT: 'BIGINT'>"}, "sqlglot.tokens.TokenType.FLOAT": {"fullname": "sqlglot.tokens.TokenType.FLOAT", "modulename": "sqlglot.tokens", "qualname": "TokenType.FLOAT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.FLOAT: 'FLOAT'>"}, "sqlglot.tokens.TokenType.DOUBLE": {"fullname": "sqlglot.tokens.TokenType.DOUBLE", "modulename": "sqlglot.tokens", "qualname": "TokenType.DOUBLE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DOUBLE: 'DOUBLE'>"}, "sqlglot.tokens.TokenType.DECIMAL": {"fullname": "sqlglot.tokens.TokenType.DECIMAL", "modulename": "sqlglot.tokens", "qualname": "TokenType.DECIMAL", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DECIMAL: 'DECIMAL'>"}, "sqlglot.tokens.TokenType.CHAR": {"fullname": "sqlglot.tokens.TokenType.CHAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.CHAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.CHAR: 'CHAR'>"}, "sqlglot.tokens.TokenType.NCHAR": {"fullname": "sqlglot.tokens.TokenType.NCHAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.NCHAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NCHAR: 'NCHAR'>"}, "sqlglot.tokens.TokenType.VARCHAR": {"fullname": "sqlglot.tokens.TokenType.VARCHAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.VARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VARCHAR: 'VARCHAR'>"}, "sqlglot.tokens.TokenType.NVARCHAR": {"fullname": "sqlglot.tokens.TokenType.NVARCHAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.NVARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NVARCHAR: 'NVARCHAR'>"}, "sqlglot.tokens.TokenType.TEXT": {"fullname": "sqlglot.tokens.TokenType.TEXT", "modulename": "sqlglot.tokens", "qualname": "TokenType.TEXT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TEXT: 'TEXT'>"}, "sqlglot.tokens.TokenType.MEDIUMTEXT": {"fullname": "sqlglot.tokens.TokenType.MEDIUMTEXT", "modulename": "sqlglot.tokens", "qualname": "TokenType.MEDIUMTEXT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>"}, "sqlglot.tokens.TokenType.LONGTEXT": {"fullname": "sqlglot.tokens.TokenType.LONGTEXT", "modulename": "sqlglot.tokens", "qualname": "TokenType.LONGTEXT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LONGTEXT: 'LONGTEXT'>"}, "sqlglot.tokens.TokenType.MEDIUMBLOB": {"fullname": "sqlglot.tokens.TokenType.MEDIUMBLOB", "modulename": "sqlglot.tokens", "qualname": "TokenType.MEDIUMBLOB", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>"}, "sqlglot.tokens.TokenType.LONGBLOB": {"fullname": "sqlglot.tokens.TokenType.LONGBLOB", "modulename": "sqlglot.tokens", "qualname": "TokenType.LONGBLOB", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LONGBLOB: 'LONGBLOB'>"}, "sqlglot.tokens.TokenType.BINARY": {"fullname": "sqlglot.tokens.TokenType.BINARY", "modulename": "sqlglot.tokens", "qualname": "TokenType.BINARY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BINARY: 'BINARY'>"}, "sqlglot.tokens.TokenType.VARBINARY": {"fullname": "sqlglot.tokens.TokenType.VARBINARY", "modulename": "sqlglot.tokens", "qualname": "TokenType.VARBINARY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VARBINARY: 'VARBINARY'>"}, "sqlglot.tokens.TokenType.JSON": {"fullname": "sqlglot.tokens.TokenType.JSON", "modulename": "sqlglot.tokens", "qualname": "TokenType.JSON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.JSON: 'JSON'>"}, "sqlglot.tokens.TokenType.JSONB": {"fullname": "sqlglot.tokens.TokenType.JSONB", "modulename": "sqlglot.tokens", "qualname": "TokenType.JSONB", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.JSONB: 'JSONB'>"}, "sqlglot.tokens.TokenType.TIME": {"fullname": "sqlglot.tokens.TokenType.TIME", "modulename": "sqlglot.tokens", "qualname": "TokenType.TIME", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TIME: 'TIME'>"}, "sqlglot.tokens.TokenType.TIMESTAMP": {"fullname": "sqlglot.tokens.TokenType.TIMESTAMP", "modulename": "sqlglot.tokens", "qualname": "TokenType.TIMESTAMP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TIMESTAMP: 'TIMESTAMP'>"}, "sqlglot.tokens.TokenType.TIMESTAMPTZ": {"fullname": "sqlglot.tokens.TokenType.TIMESTAMPTZ", "modulename": "sqlglot.tokens", "qualname": "TokenType.TIMESTAMPTZ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>"}, "sqlglot.tokens.TokenType.TIMESTAMPLTZ": {"fullname": "sqlglot.tokens.TokenType.TIMESTAMPLTZ", "modulename": "sqlglot.tokens", "qualname": "TokenType.TIMESTAMPLTZ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>"}, "sqlglot.tokens.TokenType.DATETIME": {"fullname": "sqlglot.tokens.TokenType.DATETIME", "modulename": "sqlglot.tokens", "qualname": "TokenType.DATETIME", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DATETIME: 'DATETIME'>"}, "sqlglot.tokens.TokenType.DATE": {"fullname": "sqlglot.tokens.TokenType.DATE", "modulename": "sqlglot.tokens", "qualname": "TokenType.DATE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DATE: 'DATE'>"}, "sqlglot.tokens.TokenType.UUID": {"fullname": "sqlglot.tokens.TokenType.UUID", "modulename": "sqlglot.tokens", "qualname": "TokenType.UUID", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UUID: 'UUID'>"}, "sqlglot.tokens.TokenType.GEOGRAPHY": {"fullname": "sqlglot.tokens.TokenType.GEOGRAPHY", "modulename": "sqlglot.tokens", "qualname": "TokenType.GEOGRAPHY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.GEOGRAPHY: 'GEOGRAPHY'>"}, "sqlglot.tokens.TokenType.NULLABLE": {"fullname": "sqlglot.tokens.TokenType.NULLABLE", "modulename": "sqlglot.tokens", "qualname": "TokenType.NULLABLE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NULLABLE: 'NULLABLE'>"}, "sqlglot.tokens.TokenType.GEOMETRY": {"fullname": "sqlglot.tokens.TokenType.GEOMETRY", "modulename": "sqlglot.tokens", "qualname": "TokenType.GEOMETRY", "kind": "variable", "doc": "

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\n", "default_value": "<TokenType.UNLOGGED: 'UNLOGGED'>"}, "sqlglot.tokens.TokenType.UNNEST": {"fullname": "sqlglot.tokens.TokenType.UNNEST", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNNEST", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNNEST: 'UNNEST'>"}, "sqlglot.tokens.TokenType.UNPIVOT": {"fullname": "sqlglot.tokens.TokenType.UNPIVOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNPIVOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNPIVOT: 'UNPIVOT'>"}, "sqlglot.tokens.TokenType.UPDATE": {"fullname": "sqlglot.tokens.TokenType.UPDATE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UPDATE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UPDATE: 'UPDATE'>"}, "sqlglot.tokens.TokenType.USE": {"fullname": "sqlglot.tokens.TokenType.USE", "modulename": "sqlglot.tokens", "qualname": "TokenType.USE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.USE: 'USE'>"}, "sqlglot.tokens.TokenType.USING": {"fullname": "sqlglot.tokens.TokenType.USING", "modulename": "sqlglot.tokens", "qualname": "TokenType.USING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.USING: 'USING'>"}, "sqlglot.tokens.TokenType.VALUES": {"fullname": "sqlglot.tokens.TokenType.VALUES", "modulename": "sqlglot.tokens", "qualname": "TokenType.VALUES", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VALUES: 'VALUES'>"}, "sqlglot.tokens.TokenType.VIEW": {"fullname": "sqlglot.tokens.TokenType.VIEW", "modulename": "sqlglot.tokens", "qualname": "TokenType.VIEW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VIEW: 'VIEW'>"}, "sqlglot.tokens.TokenType.VOLATILE": {"fullname": "sqlglot.tokens.TokenType.VOLATILE", "modulename": "sqlglot.tokens", "qualname": "TokenType.VOLATILE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VOLATILE: 'VOLATILE'>"}, "sqlglot.tokens.TokenType.WHEN": {"fullname": "sqlglot.tokens.TokenType.WHEN", "modulename": "sqlglot.tokens", "qualname": "TokenType.WHEN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WHEN: 'WHEN'>"}, "sqlglot.tokens.TokenType.WHERE": {"fullname": "sqlglot.tokens.TokenType.WHERE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WHERE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WHERE: 'WHERE'>"}, "sqlglot.tokens.TokenType.WINDOW": {"fullname": "sqlglot.tokens.TokenType.WINDOW", "modulename": "sqlglot.tokens", "qualname": "TokenType.WINDOW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WINDOW: 'WINDOW'>"}, "sqlglot.tokens.TokenType.WITH": {"fullname": "sqlglot.tokens.TokenType.WITH", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH: 'WITH'>"}, "sqlglot.tokens.TokenType.WITH_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITH_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH_TIME_ZONE: 'WITH_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.WITH_LOCAL_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITH_LOCAL_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH_LOCAL_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH_LOCAL_TIME_ZONE: 'WITH_LOCAL_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.WITHIN_GROUP": {"fullname": "sqlglot.tokens.TokenType.WITHIN_GROUP", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITHIN_GROUP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITHIN_GROUP: 'WITHIN_GROUP'>"}, "sqlglot.tokens.TokenType.WITHOUT_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITHOUT_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITHOUT_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITHOUT_TIME_ZONE: 'WITHOUT_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.UNIQUE": {"fullname": "sqlglot.tokens.TokenType.UNIQUE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNIQUE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNIQUE: 'UNIQUE'>"}, "sqlglot.tokens.Token": {"fullname": "sqlglot.tokens.Token", "modulename": "sqlglot.tokens", "qualname": "Token", "kind": "class", "doc": "

\n"}, "sqlglot.tokens.Token.__init__": {"fullname": "sqlglot.tokens.Token.__init__", "modulename": "sqlglot.tokens", "qualname": "Token.__init__", "kind": "function", "doc": "

\n", "signature": "(\ttoken_type: sqlglot.tokens.TokenType,\ttext: str,\tline: int = 1,\tcol: int = 1,\tcomments: List[str] = [])"}, "sqlglot.tokens.Token.number": {"fullname": "sqlglot.tokens.Token.number", "modulename": "sqlglot.tokens", "qualname": "Token.number", "kind": "function", "doc": "

Returns a NUMBER token with number as its text.

\n", "signature": "(cls, number: int) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.string": {"fullname": "sqlglot.tokens.Token.string", "modulename": "sqlglot.tokens", "qualname": "Token.string", "kind": "function", "doc": "

Returns a STRING token with string as its text.

\n", "signature": "(cls, string: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.identifier": {"fullname": "sqlglot.tokens.Token.identifier", "modulename": "sqlglot.tokens", "qualname": "Token.identifier", "kind": "function", "doc": "

Returns an IDENTIFIER token with identifier as its text.

\n", "signature": "(cls, identifier: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.var": {"fullname": "sqlglot.tokens.Token.var", "modulename": "sqlglot.tokens", "qualname": "Token.var", "kind": "function", "doc": "

Returns an VAR token with var as its text.

\n", "signature": "(cls, var: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Tokenizer": {"fullname": "sqlglot.tokens.Tokenizer", "modulename": "sqlglot.tokens", "qualname": "Tokenizer", "kind": "class", "doc": "

\n"}, "sqlglot.tokens.Tokenizer.reset": {"fullname": "sqlglot.tokens.Tokenizer.reset", "modulename": "sqlglot.tokens", "qualname": "Tokenizer.reset", "kind": "function", "doc": "

\n", "signature": "(self) -> None:", "funcdef": "def"}, "sqlglot.tokens.Tokenizer.tokenize": {"fullname": "sqlglot.tokens.Tokenizer.tokenize", "modulename": "sqlglot.tokens", "qualname": "Tokenizer.tokenize", "kind": "function", "doc": "

Returns a list of tokens corresponding to the SQL string sql.

\n", "signature": "(self, sql: str) -> List[sqlglot.tokens.Token]:", "funcdef": "def"}, "sqlglot.transforms": {"fullname": "sqlglot.transforms", "modulename": "sqlglot.transforms", "kind": "module", "doc": "

\n"}, "sqlglot.transforms.unalias_group": {"fullname": "sqlglot.transforms.unalias_group", "modulename": "sqlglot.transforms", "qualname": "unalias_group", "kind": "function", "doc": "

Replace references to select aliases in GROUP BY clauses.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT a AS b FROM x GROUP BY b").transform(unalias_group).sql()\n'SELECT a AS b FROM x GROUP BY 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression that will be transformed.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.eliminate_distinct_on": {"fullname": "sqlglot.transforms.eliminate_distinct_on", "modulename": "sqlglot.transforms", "qualname": "eliminate_distinct_on", "kind": "function", "doc": "

Convert SELECT DISTINCT ON statements to a subquery with a window function.

\n\n

This is useful for dialects that don't support SELECT DISTINCT ON but support window functions.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression that will be transformed.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.remove_precision_parameterized_types": {"fullname": "sqlglot.transforms.remove_precision_parameterized_types", "modulename": "sqlglot.transforms", "qualname": "remove_precision_parameterized_types", "kind": "function", "doc": "

Some dialects only allow the precision for parameterized types to be defined in the DDL and not in other expressions.\nThis transforms removes the precision from parameterized types in expressions.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.preprocess": {"fullname": "sqlglot.transforms.preprocess", "modulename": "sqlglot.transforms", "qualname": "preprocess", "kind": "function", "doc": "

Creates a new transform by chaining a sequence of transformations and converts the resulting\nexpression to SQL, using an appropriate Generator.TRANSFORMS function.

\n\n
Arguments:
\n\n
    \n
  • transforms: sequence of transform functions. These will be called in order.
  • \n
  • to_sql: final transform that converts the resulting expression to a SQL string.
  • \n
\n\n
Returns:
\n\n
\n

Function that can be used as a generator transform.

\n
\n", "signature": "(\ttransforms: List[Callable[[sqlglot.expressions.Expression], sqlglot.expressions.Expression]],\tto_sql: Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]) -> Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]:", "funcdef": "def"}, "sqlglot.transforms.delegate": {"fullname": "sqlglot.transforms.delegate", "modulename": "sqlglot.transforms", "qualname": "delegate", "kind": "function", "doc": "

Create a new method that delegates to attr. This is useful for creating Generator.TRANSFORMS\nfunctions that delegate to existing generator methods.

\n", "signature": "(attr: str) -> Callable:", "funcdef": "def"}, "sqlglot.trie": {"fullname": "sqlglot.trie", "modulename": "sqlglot.trie", "kind": "module", "doc": "

\n"}, "sqlglot.trie.new_trie": {"fullname": "sqlglot.trie.new_trie", "modulename": "sqlglot.trie", "qualname": "new_trie", "kind": "function", "doc": "

Creates a new trie out of a collection of keywords.

\n\n

The trie is represented as a sequence of nested dictionaries keyed by either single character\nstrings, or by 0, which is used to designate that a keyword is in the trie.

\n\n
Example:
\n\n
\n
\n
>>> new_trie(["bla", "foo", "blab"])\n{'b': {'l': {'a': {0: True, 'b': {0: True}}}}, 'f': {'o': {'o': {0: True}}}}\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • keywords: the keywords to create the trie from.
  • \n
\n\n
Returns:
\n\n
\n

The trie corresponding to keywords.

\n
\n", "signature": "(keywords: Iterable[Sequence[Hashable]]) -> Dict:", "funcdef": "def"}, "sqlglot.trie.in_trie": {"fullname": "sqlglot.trie.in_trie", "modulename": "sqlglot.trie", "qualname": "in_trie", "kind": "function", "doc": "

Checks whether a key is in a trie.

\n\n
Examples:
\n\n
\n
\n
>>> in_trie(new_trie(["cat"]), "bob")\n(0, {'c': {'a': {'t': {0: True}}}})\n
\n
\n \n
\n
>>> in_trie(new_trie(["cat"]), "ca")\n(1, {'t': {0: True}})\n
\n
\n \n
\n
>>> in_trie(new_trie(["cat"]), "cat")\n(2, {0: True})\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • trie: the trie to be searched.
  • \n
  • key: the target key.
  • \n
\n\n
Returns:
\n\n
\n

A pair (value, subtrie), where subtrie is the sub-trie we get at the point where the search stops, and value\n is either 0 (search was unsuccessful), 1 (value is a prefix of a keyword in trie) or 2 (key is intrie`).

\n
\n", "signature": "(trie: Dict, key: Sequence[Hashable]) -> Tuple[int, Dict]:", "funcdef": "def"}}, "docInfo": {"sqlglot": {"qualname": 0, "fullname": 1, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 5685}, "sqlglot.pretty": {"qualname": 1, "fullname": 2, "annotation": 0, "default_value": 1, "signature": 0, "bases": 0, "doc": 10}, "sqlglot.schema": {"qualname": 0, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 3}, "sqlglot.parse": {"qualname": 1, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 124, "bases": 0, "doc": 84}, "sqlglot.parse_one": {"qualname": 2, "fullname": 3, "annotation": 0, "default_value": 0, "signature": 198, "bases": 0, "doc": 99}, "sqlglot.transpile": {"qualname": 1, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 239, "bases": 0, "doc": 177}, "sqlglot.dataframe": {"qualname": 0, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 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0, "signature": 259, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.sql": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 51, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.copy": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 41, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.select": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 48, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.alias": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 51, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.where": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 86, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.filter": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 86, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.groupBy": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 48, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.agg": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 48, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.join": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 180, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.orderBy": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 120, "bases": 0, "doc": 44}, "sqlglot.dataframe.sql.DataFrame.sort": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 120, "bases": 0, "doc": 44}, "sqlglot.dataframe.sql.DataFrame.union": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 66, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.unionAll": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 66, "bases": 0, "doc": 3}, 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"annotation": 0, "default_value": 0, "signature": 138, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.fillna": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 123, "bases": 0, "doc": 100}, "sqlglot.dataframe.sql.DataFrame.replace": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 217, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.withColumn": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 77, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.withColumnRenamed": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 31, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.drop": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 80, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.limit": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 44, "bases": 0, "doc": 3}, 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53"""Whether to format generated SQL by default.""" diff --git a/docs/sqlglot/dataframe/sql.html b/docs/sqlglot/dataframe/sql.html index 9c49563..39acae5 100644 --- a/docs/sqlglot/dataframe/sql.html +++ b/docs/sqlglot/dataframe/sql.html @@ -608,7 +608,7 @@
def - createDataFrame( self, data: Sequence[Union[Dict[str, <MagicMock id='140472806286400'>], List[<MagicMock id='140472806286400'>], Tuple]], schema: Optional[<MagicMock id='140472806820784'>] = None, samplingRatio: Optional[float] = None, verifySchema: bool = False) -> sqlglot.dataframe.sql.DataFrame: + createDataFrame( self, data: Sequence[Union[Dict[str, <MagicMock id='139816741409008'>], List[<MagicMock id='139816741409008'>], Tuple]], schema: Optional[<MagicMock id='139816741291056'>] = None, samplingRatio: Optional[float] = None, verifySchema: bool = False) -> sqlglot.dataframe.sql.DataFrame: @@ -1476,7 +1476,7 @@
- DataFrame( spark: <MagicMock id='140472811025888'>, expression: sqlglot.expressions.Select, branch_id: Optional[str] = None, sequence_id: Optional[str] = None, last_op: sqlglot.dataframe.sql.operations.Operation = <Operation.INIT: -1>, pending_hints: Optional[List[sqlglot.expressions.Expression]] = None, output_expression_container: Optional[<MagicMock id='140472809295296'>] = None, **kwargs) + DataFrame( spark: <MagicMock id='139816743982688'>, expression: sqlglot.expressions.Select, branch_id: Optional[str] = None, sequence_id: Optional[str] = None, last_op: sqlglot.dataframe.sql.operations.Operation = <Operation.INIT: -1>, pending_hints: Optional[List[sqlglot.expressions.Expression]] = None, output_expression_container: Optional[<MagicMock id='139816744201776'>] = None, **kwargs) @@ -2214,7 +2214,7 @@ is unlikely to come up.

@operation(Operation.FROM)
def - fillna( self, value: <MagicMock id='140472806747648'>, subset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.DataFrame: + fillna( self, value: <MagicMock id='139816742311856'>, subset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.DataFrame: @@ -2283,7 +2283,7 @@ and check if it matches the type of the value provided. If not then make it null
@operation(Operation.FROM)
def - replace( self, to_replace: Union[bool, int, float, str, List, Dict], value: Union[bool, int, float, str, List, NoneType] = None, subset: Union[Collection[<MagicMock id='140472804979616'>], <MagicMock id='140472804979616'>, NoneType] = None) -> sqlglot.dataframe.sql.DataFrame: + replace( self, to_replace: Union[bool, int, float, str, List, Dict], value: Union[bool, int, float, str, List, NoneType] = None, subset: Union[Collection[<MagicMock id='139816742247472'>], <MagicMock id='139816742247472'>, NoneType] = None) -> sqlglot.dataframe.sql.DataFrame: @@ -2488,7 +2488,7 @@ and check if it matches the type of the value provided. If not then make it null
@operation(Operation.NO_OP)
def - repartition( self, numPartitions: Union[int, <MagicMock id='140472805135488'>], *cols: <MagicMock id='140472805162720'>) -> sqlglot.dataframe.sql.DataFrame: + repartition( self, numPartitions: Union[int, <MagicMock id='139816742350096'>], *cols: <MagicMock id='139816741969184'>) -> sqlglot.dataframe.sql.DataFrame: @@ -2893,10 +2893,10 @@ and check if it matches the type of the value provided. If not then make it null 68 return self.binary_op(exp.Mul, other) 69 70 def __truediv__(self, other: ColumnOrLiteral) -> Column: - 71 return self.binary_op(exp.Div, other) + 71 return self.binary_op(exp.FloatDiv, other) 72 73 def __div__(self, other: ColumnOrLiteral) -> Column: - 74 return self.binary_op(exp.Div, other) + 74 return self.binary_op(exp.FloatDiv, other) 75 76 def __neg__(self) -> Column: 77 return self.unary_op(exp.Neg) @@ -2911,10 +2911,10 @@ and check if it matches the type of the value provided. If not then make it null 86 return self.inverse_binary_op(exp.Mul, other) 87 88 def __rdiv__(self, other: ColumnOrLiteral) -> Column: - 89 return self.inverse_binary_op(exp.Div, other) + 89 return self.inverse_binary_op(exp.FloatDiv, other) 90 91 def __rtruediv__(self, other: ColumnOrLiteral) -> Column: - 92 return self.inverse_binary_op(exp.Div, other) + 92 return self.inverse_binary_op(exp.FloatDiv, other) 93 94 def __rmod__(self, other: ColumnOrLiteral) -> Column: 95 return self.inverse_binary_op(exp.Mod, other) @@ -3156,7 +3156,7 @@ and check if it matches the type of the value provided. If not then make it null
- Column( expression: Union[<MagicMock id='140472807220864'>, sqlglot.expressions.Expression, NoneType]) + Column( expression: Union[<MagicMock id='139816743230128'>, sqlglot.expressions.Expression, NoneType]) @@ -3184,7 +3184,7 @@ and check if it matches the type of the value provided. If not then make it null
@classmethod
def - ensure_col( cls, value: Union[<MagicMock id='140472805310912'>, sqlglot.expressions.Expression, NoneType]): + ensure_col( cls, value: Union[<MagicMock id='139816742475216'>, sqlglot.expressions.Expression, NoneType]): @@ -3205,7 +3205,7 @@ and check if it matches the type of the value provided. If not then make it null
@classmethod
def - ensure_cols( cls, args: List[Union[<MagicMock id='140472805659008'>, sqlglot.expressions.Expression]]) -> List[sqlglot.dataframe.sql.Column]: + ensure_cols( cls, args: List[Union[<MagicMock id='139816742744512'>, sqlglot.expressions.Expression]]) -> List[sqlglot.dataframe.sql.Column]: @@ -3226,7 +3226,7 @@ and check if it matches the type of the value provided. If not then make it null
@classmethod
def - invoke_anonymous_function( cls, column: Optional[<MagicMock id='140472805529376'>], func_name: str, *args: Optional[<MagicMock id='140472805471088'>]) -> sqlglot.dataframe.sql.Column: + invoke_anonymous_function( cls, column: Optional[<MagicMock id='139816742608448'>], func_name: str, *args: Optional[<MagicMock id='139816742622240'>]) -> sqlglot.dataframe.sql.Column: @@ -3253,7 +3253,7 @@ and check if it matches the type of the value provided. If not then make it null
@classmethod
def - invoke_expression_over_column( cls, column: Optional[<MagicMock id='140472805366256'>], callable_expression: Callable, **kwargs) -> sqlglot.dataframe.sql.Column: + invoke_expression_over_column( cls, column: Optional[<MagicMock id='139816742786080'>], callable_expression: Callable, **kwargs) -> sqlglot.dataframe.sql.Column: @@ -3290,7 +3290,7 @@ and check if it matches the type of the value provided. If not then make it null
def - binary_op( self, klass: Callable, other: <MagicMock id='140472805069328'>, **kwargs) -> sqlglot.dataframe.sql.Column: + binary_op( self, klass: Callable, other: <MagicMock id='139816742826624'>, **kwargs) -> sqlglot.dataframe.sql.Column: @@ -3311,7 +3311,7 @@ and check if it matches the type of the value provided. If not then make it null
def - inverse_binary_op( self, klass: Callable, other: <MagicMock id='140472805078736'>, **kwargs) -> sqlglot.dataframe.sql.Column: + inverse_binary_op( self, klass: Callable, other: <MagicMock id='139816742329968'>, **kwargs) -> sqlglot.dataframe.sql.Column: @@ -3821,7 +3821,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - isin( self, *cols: Union[<MagicMock id='140472803821888'>, Iterable[<MagicMock id='140472803821888'>]]): + isin( self, *cols: Union[<MagicMock id='139816739833744'>, Iterable[<MagicMock id='139816739833744'>]]): @@ -3842,7 +3842,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - between( self, lowerBound: <MagicMock id='140472803925808'>, upperBound: <MagicMock id='140472803947520'>) -> sqlglot.dataframe.sql.Column: + between( self, lowerBound: <MagicMock id='139816739992480'>, upperBound: <MagicMock id='139816740066480'>) -> sqlglot.dataframe.sql.Column: @@ -3877,7 +3877,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - over( self, window: <MagicMock id='140472804005232'>) -> sqlglot.dataframe.sql.Column: + over( self, window: <MagicMock id='139816740107696'>) -> sqlglot.dataframe.sql.Column: @@ -4075,7 +4075,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

@classmethod
def - partitionBy( cls, *cols: Union[<MagicMock id='140472804320848'>, List[<MagicMock id='140472804320848'>]]) -> sqlglot.dataframe.sql.WindowSpec: + partitionBy( cls, *cols: Union[<MagicMock id='139816740595376'>, List[<MagicMock id='139816740595376'>]]) -> sqlglot.dataframe.sql.WindowSpec: @@ -4096,7 +4096,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

@classmethod
def - orderBy( cls, *cols: Union[<MagicMock id='140472804438944'>, List[<MagicMock id='140472804438944'>]]) -> sqlglot.dataframe.sql.WindowSpec: + orderBy( cls, *cols: Union[<MagicMock id='139816740453728'>, List[<MagicMock id='139816740453728'>]]) -> sqlglot.dataframe.sql.WindowSpec: @@ -4321,7 +4321,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - partitionBy( self, *cols: Union[<MagicMock id='140472804166576'>, List[<MagicMock id='140472804166576'>]]) -> sqlglot.dataframe.sql.WindowSpec: + partitionBy( self, *cols: Union[<MagicMock id='139816740478720'>, List[<MagicMock id='139816740478720'>]]) -> sqlglot.dataframe.sql.WindowSpec: @@ -4348,7 +4348,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - orderBy( self, *cols: Union[<MagicMock id='140472804365008'>, List[<MagicMock id='140472804365008'>]]) -> sqlglot.dataframe.sql.WindowSpec: + orderBy( self, *cols: Union[<MagicMock id='139816740191104'>, List[<MagicMock id='139816740191104'>]]) -> sqlglot.dataframe.sql.WindowSpec: diff --git a/docs/sqlglot/dialects/bigquery.html b/docs/sqlglot/dialects/bigquery.html index d994538..32ba09f 100644 --- a/docs/sqlglot/dialects/bigquery.html +++ b/docs/sqlglot/dialects/bigquery.html @@ -110,296 +110,302 @@ 10 Dialect, 11 datestrtodate_sql, 12 inline_array_sql, - 13 no_ilike_sql, - 14 rename_func, - 15 timestrtotime_sql, - 16 ts_or_ds_to_date_sql, - 17) - 18from sqlglot.helper import seq_get - 19from sqlglot.tokens import TokenType - 20 - 21E = t.TypeVar("E", bound=exp.Expression) - 22 + 13 min_or_least, + 14 no_ilike_sql, + 15 rename_func, + 16 timestrtotime_sql, + 17 ts_or_ds_to_date_sql, + 18) + 19from sqlglot.helper import seq_get + 20from sqlglot.tokens import TokenType + 21 + 22E = t.TypeVar("E", bound=exp.Expression) 23 - 24def _date_add(expression_class: t.Type[E]) -> t.Callable[[t.Sequence], E]: - 25 def func(args): - 26 interval = seq_get(args, 1) - 27 return expression_class( - 28 this=seq_get(args, 0), - 29 expression=interval.this, - 30 unit=interval.args.get("unit"), - 31 ) - 32 - 33 return func - 34 + 24 + 25def _date_add(expression_class: t.Type[E]) -> t.Callable[[t.Sequence], E]: + 26 def func(args): + 27 interval = seq_get(args, 1) + 28 return expression_class( + 29 this=seq_get(args, 0), + 30 expression=interval.this, + 31 unit=interval.args.get("unit"), + 32 ) + 33 + 34 return func 35 - 36def _date_add_sql( - 37 data_type: str, kind: str - 38) -> t.Callable[[generator.Generator, exp.Expression], str]: - 39 def func(self, expression): - 40 this = self.sql(expression, "this") - 41 unit = expression.args.get("unit") - 42 unit = exp.var(unit.name.upper() if unit else "DAY") - 43 interval = exp.Interval(this=expression.expression, unit=unit) - 44 return f"{data_type}_{kind}({this}, {self.sql(interval)})" - 45 - 46 return func - 47 + 36 + 37def _date_add_sql( + 38 data_type: str, kind: str + 39) -> t.Callable[[generator.Generator, exp.Expression], str]: + 40 def func(self, expression): + 41 this = self.sql(expression, "this") + 42 unit = expression.args.get("unit") + 43 unit = exp.var(unit.name.upper() if unit else "DAY") + 44 interval = exp.Interval(this=expression.expression, unit=unit) + 45 return f"{data_type}_{kind}({this}, {self.sql(interval)})" + 46 + 47 return func 48 - 49def _derived_table_values_to_unnest(self: generator.Generator, expression: exp.Values) -> str: - 50 if not isinstance(expression.unnest().parent, exp.From): - 51 expression = t.cast(exp.Values, transforms.remove_precision_parameterized_types(expression)) - 52 return self.values_sql(expression) - 53 rows = [tuple_exp.expressions for tuple_exp in expression.find_all(exp.Tuple)] - 54 structs = [] - 55 for row in rows: - 56 aliases = [ - 57 exp.alias_(value, column_name) - 58 for value, column_name in zip(row, expression.args["alias"].args["columns"]) - 59 ] - 60 structs.append(exp.Struct(expressions=aliases)) - 61 unnest_exp = exp.Unnest(expressions=[exp.Array(expressions=structs)]) - 62 return self.unnest_sql(unnest_exp) - 63 + 49 + 50def _derived_table_values_to_unnest(self: generator.Generator, expression: exp.Values) -> str: + 51 if not isinstance(expression.unnest().parent, exp.From): + 52 expression = t.cast(exp.Values, transforms.remove_precision_parameterized_types(expression)) + 53 return self.values_sql(expression) + 54 rows = [tuple_exp.expressions for tuple_exp in expression.find_all(exp.Tuple)] + 55 structs = [] + 56 for row in rows: + 57 aliases = [ + 58 exp.alias_(value, column_name) + 59 for value, column_name in zip(row, expression.args["alias"].args["columns"]) + 60 ] + 61 structs.append(exp.Struct(expressions=aliases)) + 62 unnest_exp = exp.Unnest(expressions=[exp.Array(expressions=structs)]) + 63 return self.unnest_sql(unnest_exp) 64 - 65def _returnsproperty_sql(self: generator.Generator, expression: exp.ReturnsProperty) -> str: - 66 this = expression.this - 67 if isinstance(this, exp.Schema): - 68 this = f"{this.this} <{self.expressions(this)}>" - 69 else: - 70 this = self.sql(this) - 71 return f"RETURNS {this}" - 72 + 65 + 66def _returnsproperty_sql(self: generator.Generator, expression: exp.ReturnsProperty) -> str: + 67 this = expression.this + 68 if isinstance(this, exp.Schema): + 69 this = f"{this.this} <{self.expressions(this)}>" + 70 else: + 71 this = self.sql(this) + 72 return f"RETURNS {this}" 73 - 74def _create_sql(self: generator.Generator, expression: exp.Create) -> str: - 75 kind = expression.args["kind"] - 76 returns = expression.find(exp.ReturnsProperty) - 77 if kind.upper() == "FUNCTION" and returns and returns.args.get("is_table"): - 78 expression = expression.copy() - 79 expression.set("kind", "TABLE FUNCTION") - 80 if isinstance( - 81 expression.expression, - 82 ( - 83 exp.Subquery, - 84 exp.Literal, - 85 ), - 86 ): - 87 expression.set("expression", expression.expression.this) - 88 - 89 return self.create_sql(expression) - 90 - 91 return self.create_sql(expression) - 92 + 74 + 75def _create_sql(self: generator.Generator, expression: exp.Create) -> str: + 76 kind = expression.args["kind"] + 77 returns = expression.find(exp.ReturnsProperty) + 78 if kind.upper() == "FUNCTION" and returns and returns.args.get("is_table"): + 79 expression = expression.copy() + 80 expression.set("kind", "TABLE FUNCTION") + 81 if isinstance( + 82 expression.expression, + 83 ( + 84 exp.Subquery, + 85 exp.Literal, + 86 ), + 87 ): + 88 expression.set("expression", expression.expression.this) + 89 + 90 return self.create_sql(expression) + 91 + 92 return self.create_sql(expression) 93 - 94def _unqualify_unnest(expression: exp.Expression) -> exp.Expression: - 95 """Remove references to unnest table aliases since bigquery doesn't allow them. - 96 - 97 These are added by the optimizer's qualify_column step. - 98 """ - 99 if isinstance(expression, exp.Select): -100 unnests = { -101 unnest.alias -102 for unnest in expression.args.get("from", exp.From(expressions=[])).expressions -103 if isinstance(unnest, exp.Unnest) and unnest.alias -104 } -105 -106 if unnests: -107 expression = expression.copy() -108 -109 for select in expression.expressions: -110 for column in select.find_all(exp.Column): -111 if column.table in unnests: -112 column.set("table", None) -113 -114 return expression -115 + 94 + 95def _unqualify_unnest(expression: exp.Expression) -> exp.Expression: + 96 """Remove references to unnest table aliases since bigquery doesn't allow them. + 97 + 98 These are added by the optimizer's qualify_column step. + 99 """ +100 if isinstance(expression, exp.Select): +101 unnests = { +102 unnest.alias +103 for unnest in expression.args.get("from", exp.From(expressions=[])).expressions +104 if isinstance(unnest, exp.Unnest) and unnest.alias +105 } +106 +107 if unnests: +108 expression = expression.copy() +109 +110 for select in expression.expressions: +111 for column in select.find_all(exp.Column): +112 if column.table in unnests: +113 column.set("table", None) +114 +115 return expression 116 -117class BigQuery(Dialect): -118 unnest_column_only = True -119 time_mapping = { -120 "%M": "%-M", -121 "%d": "%-d", -122 "%m": "%-m", -123 "%y": "%-y", -124 "%H": "%-H", -125 "%I": "%-I", -126 "%S": "%-S", -127 "%j": "%-j", -128 } -129 -130 class Tokenizer(tokens.Tokenizer): -131 QUOTES = [ -132 (prefix + quote, quote) if prefix else quote -133 for quote in ["'", '"', '"""', "'''"] -134 for prefix in ["", "r", "R"] -135 ] -136 COMMENTS = ["--", "#", ("/*", "*/")] -137 IDENTIFIERS = ["`"] -138 STRING_ESCAPES = ["\\"] -139 HEX_STRINGS = [("0x", ""), ("0X", "")] -140 -141 KEYWORDS = { -142 **tokens.Tokenizer.KEYWORDS, -143 "BEGIN": TokenType.COMMAND, -144 "BEGIN TRANSACTION": TokenType.BEGIN, -145 "CURRENT_DATETIME": TokenType.CURRENT_DATETIME, -146 "CURRENT_TIME": TokenType.CURRENT_TIME, -147 "DECLARE": TokenType.COMMAND, -148 "GEOGRAPHY": TokenType.GEOGRAPHY, -149 "FLOAT64": TokenType.DOUBLE, -150 "INT64": TokenType.BIGINT, -151 "NOT DETERMINISTIC": TokenType.VOLATILE, -152 "UNKNOWN": TokenType.NULL, -153 } -154 KEYWORDS.pop("DIV") -155 -156 class Parser(parser.Parser): -157 FUNCTIONS = { -158 **parser.Parser.FUNCTIONS, # type: ignore -159 "DATE_TRUNC": lambda args: exp.DateTrunc( -160 unit=exp.Literal.string(seq_get(args, 1).name), # type: ignore -161 this=seq_get(args, 0), -162 ), -163 "DATE_ADD": _date_add(exp.DateAdd), -164 "DATETIME_ADD": _date_add(exp.DatetimeAdd), -165 "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)), -166 "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list, -167 "REGEXP_EXTRACT": lambda args: exp.RegexpExtract( -168 this=seq_get(args, 0), -169 expression=seq_get(args, 1), -170 position=seq_get(args, 2), -171 occurrence=seq_get(args, 3), -172 group=exp.Literal.number(1) -173 if re.compile(str(seq_get(args, 1))).groups == 1 -174 else None, -175 ), -176 "TIME_ADD": _date_add(exp.TimeAdd), -177 "TIMESTAMP_ADD": _date_add(exp.TimestampAdd), -178 "DATE_SUB": _date_add(exp.DateSub), -179 "DATETIME_SUB": _date_add(exp.DatetimeSub), -180 "TIME_SUB": _date_add(exp.TimeSub), -181 "TIMESTAMP_SUB": _date_add(exp.TimestampSub), -182 "PARSE_TIMESTAMP": lambda args: exp.StrToTime( -183 this=seq_get(args, 1), format=seq_get(args, 0) -184 ), -185 } -186 -187 FUNCTION_PARSERS = { -188 **parser.Parser.FUNCTION_PARSERS, # type: ignore -189 "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]), -190 } -191 FUNCTION_PARSERS.pop("TRIM") -192 -193 NO_PAREN_FUNCTIONS = { -194 **parser.Parser.NO_PAREN_FUNCTIONS, # type: ignore -195 TokenType.CURRENT_DATETIME: exp.CurrentDatetime, -196 TokenType.CURRENT_TIME: exp.CurrentTime, -197 } -198 -199 NESTED_TYPE_TOKENS = { -200 *parser.Parser.NESTED_TYPE_TOKENS, # type: ignore -201 TokenType.TABLE, -202 } -203 -204 ID_VAR_TOKENS = { -205 *parser.Parser.ID_VAR_TOKENS, # type: ignore -206 TokenType.VALUES, -207 } -208 -209 PROPERTY_PARSERS = { -210 **parser.Parser.PROPERTY_PARSERS, # type: ignore -211 "NOT DETERMINISTIC": lambda self: self.expression( -212 exp.VolatilityProperty, this=exp.Literal.string("VOLATILE") -213 ), -214 } -215 -216 class Generator(generator.Generator): -217 TRANSFORMS = { -218 **generator.Generator.TRANSFORMS, # type: ignore -219 **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES, # type: ignore -220 exp.ArraySize: rename_func("ARRAY_LENGTH"), -221 exp.DateAdd: _date_add_sql("DATE", "ADD"), -222 exp.DateSub: _date_add_sql("DATE", "SUB"), -223 exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"), -224 exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"), -225 exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})", -226 exp.DateStrToDate: datestrtodate_sql, -227 exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")), -228 exp.GroupConcat: rename_func("STRING_AGG"), -229 exp.ILike: no_ilike_sql, -230 exp.IntDiv: rename_func("DIV"), -231 exp.Select: transforms.preprocess( -232 [_unqualify_unnest], transforms.delegate("select_sql") -233 ), -234 exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})", -235 exp.TimeAdd: _date_add_sql("TIME", "ADD"), -236 exp.TimeSub: _date_add_sql("TIME", "SUB"), -237 exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"), -238 exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"), -239 exp.TimeStrToTime: timestrtotime_sql, -240 exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"), -241 exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"), -242 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -243 exp.VariancePop: rename_func("VAR_POP"), -244 exp.Values: _derived_table_values_to_unnest, -245 exp.ReturnsProperty: _returnsproperty_sql, -246 exp.Create: _create_sql, -247 exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression), -248 exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC" -249 if e.name == "IMMUTABLE" -250 else "NOT DETERMINISTIC", -251 exp.RegexpLike: rename_func("REGEXP_CONTAINS"), -252 } -253 -254 TYPE_MAPPING = { -255 **generator.Generator.TYPE_MAPPING, # type: ignore -256 exp.DataType.Type.TINYINT: "INT64", -257 exp.DataType.Type.SMALLINT: "INT64", -258 exp.DataType.Type.INT: "INT64", -259 exp.DataType.Type.BIGINT: "INT64", -260 exp.DataType.Type.DECIMAL: "NUMERIC", -261 exp.DataType.Type.FLOAT: "FLOAT64", -262 exp.DataType.Type.DOUBLE: "FLOAT64", -263 exp.DataType.Type.BOOLEAN: "BOOL", -264 exp.DataType.Type.TEXT: "STRING", -265 exp.DataType.Type.VARCHAR: "STRING", -266 exp.DataType.Type.NVARCHAR: "STRING", -267 } -268 PROPERTIES_LOCATION = { -269 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -270 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, -271 } -272 -273 EXPLICIT_UNION = True -274 -275 def array_sql(self, expression: exp.Array) -> str: -276 first_arg = seq_get(expression.expressions, 0) -277 if isinstance(first_arg, exp.Subqueryable): -278 return f"ARRAY{self.wrap(self.sql(first_arg))}" -279 -280 return inline_array_sql(self, expression) -281 -282 def transaction_sql(self, *_) -> str: -283 return "BEGIN TRANSACTION" -284 -285 def commit_sql(self, *_) -> str: -286 return "COMMIT TRANSACTION" +117 +118class BigQuery(Dialect): +119 unnest_column_only = True +120 time_mapping = { +121 "%M": "%-M", +122 "%d": "%-d", +123 "%m": "%-m", +124 "%y": "%-y", +125 "%H": "%-H", +126 "%I": "%-I", +127 "%S": "%-S", +128 "%j": "%-j", +129 } +130 +131 class Tokenizer(tokens.Tokenizer): +132 QUOTES = [ +133 (prefix + quote, quote) if prefix else quote +134 for quote in ["'", '"', '"""', "'''"] +135 for prefix in ["", "r", "R"] +136 ] +137 COMMENTS = ["--", "#", ("/*", "*/")] +138 IDENTIFIERS = ["`"] +139 STRING_ESCAPES = ["\\"] +140 HEX_STRINGS = [("0x", ""), ("0X", "")] +141 +142 KEYWORDS = { +143 **tokens.Tokenizer.KEYWORDS, +144 "BEGIN": TokenType.COMMAND, +145 "BEGIN TRANSACTION": TokenType.BEGIN, +146 "CURRENT_DATETIME": TokenType.CURRENT_DATETIME, +147 "CURRENT_TIME": TokenType.CURRENT_TIME, +148 "DECLARE": TokenType.COMMAND, +149 "GEOGRAPHY": TokenType.GEOGRAPHY, +150 "FLOAT64": TokenType.DOUBLE, +151 "INT64": TokenType.BIGINT, +152 "NOT DETERMINISTIC": TokenType.VOLATILE, +153 "UNKNOWN": TokenType.NULL, +154 } +155 KEYWORDS.pop("DIV") +156 +157 class Parser(parser.Parser): +158 FUNCTIONS = { +159 **parser.Parser.FUNCTIONS, # type: ignore +160 "DATE_TRUNC": lambda args: exp.DateTrunc( +161 unit=exp.Literal.string(seq_get(args, 1).name), # type: ignore +162 this=seq_get(args, 0), +163 ), +164 "DATE_ADD": _date_add(exp.DateAdd), +165 "DATETIME_ADD": _date_add(exp.DatetimeAdd), +166 "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)), +167 "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list, +168 "REGEXP_EXTRACT": lambda args: exp.RegexpExtract( +169 this=seq_get(args, 0), +170 expression=seq_get(args, 1), +171 position=seq_get(args, 2), +172 occurrence=seq_get(args, 3), +173 group=exp.Literal.number(1) +174 if re.compile(str(seq_get(args, 1))).groups == 1 +175 else None, +176 ), +177 "TIME_ADD": _date_add(exp.TimeAdd), +178 "TIMESTAMP_ADD": _date_add(exp.TimestampAdd), +179 "DATE_SUB": _date_add(exp.DateSub), +180 "DATETIME_SUB": _date_add(exp.DatetimeSub), +181 "TIME_SUB": _date_add(exp.TimeSub), +182 "TIMESTAMP_SUB": _date_add(exp.TimestampSub), +183 "PARSE_TIMESTAMP": lambda args: exp.StrToTime( +184 this=seq_get(args, 1), format=seq_get(args, 0) +185 ), +186 } +187 +188 FUNCTION_PARSERS = { +189 **parser.Parser.FUNCTION_PARSERS, # type: ignore +190 "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]), +191 } +192 FUNCTION_PARSERS.pop("TRIM") +193 +194 NO_PAREN_FUNCTIONS = { +195 **parser.Parser.NO_PAREN_FUNCTIONS, # type: ignore +196 TokenType.CURRENT_DATETIME: exp.CurrentDatetime, +197 TokenType.CURRENT_TIME: exp.CurrentTime, +198 } +199 +200 NESTED_TYPE_TOKENS = { +201 *parser.Parser.NESTED_TYPE_TOKENS, # type: ignore +202 TokenType.TABLE, +203 } +204 +205 ID_VAR_TOKENS = { +206 *parser.Parser.ID_VAR_TOKENS, # type: ignore +207 TokenType.VALUES, +208 } +209 +210 PROPERTY_PARSERS = { +211 **parser.Parser.PROPERTY_PARSERS, # type: ignore +212 "NOT DETERMINISTIC": lambda self: self.expression( +213 exp.VolatilityProperty, this=exp.Literal.string("VOLATILE") +214 ), +215 } +216 +217 INTEGER_DIVISION = False +218 +219 class Generator(generator.Generator): +220 INTEGER_DIVISION = False +221 +222 TRANSFORMS = { +223 **generator.Generator.TRANSFORMS, # type: ignore +224 **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES, # type: ignore +225 exp.ArraySize: rename_func("ARRAY_LENGTH"), +226 exp.DateAdd: _date_add_sql("DATE", "ADD"), +227 exp.DateSub: _date_add_sql("DATE", "SUB"), +228 exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"), +229 exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"), +230 exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})", +231 exp.DateStrToDate: datestrtodate_sql, +232 exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")), +233 exp.GroupConcat: rename_func("STRING_AGG"), +234 exp.ILike: no_ilike_sql, +235 exp.IntDiv: rename_func("DIV"), +236 exp.Min: min_or_least, +237 exp.Select: transforms.preprocess( +238 [_unqualify_unnest], transforms.delegate("select_sql") +239 ), +240 exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})", +241 exp.TimeAdd: _date_add_sql("TIME", "ADD"), +242 exp.TimeSub: _date_add_sql("TIME", "SUB"), +243 exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"), +244 exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"), +245 exp.TimeStrToTime: timestrtotime_sql, +246 exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"), +247 exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"), +248 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", +249 exp.VariancePop: rename_func("VAR_POP"), +250 exp.Values: _derived_table_values_to_unnest, +251 exp.ReturnsProperty: _returnsproperty_sql, +252 exp.Create: _create_sql, +253 exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression), +254 exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC" +255 if e.name == "IMMUTABLE" +256 else "NOT DETERMINISTIC", +257 exp.RegexpLike: rename_func("REGEXP_CONTAINS"), +258 } +259 +260 TYPE_MAPPING = { +261 **generator.Generator.TYPE_MAPPING, # type: ignore +262 exp.DataType.Type.TINYINT: "INT64", +263 exp.DataType.Type.SMALLINT: "INT64", +264 exp.DataType.Type.INT: "INT64", +265 exp.DataType.Type.BIGINT: "INT64", +266 exp.DataType.Type.DECIMAL: "NUMERIC", +267 exp.DataType.Type.FLOAT: "FLOAT64", +268 exp.DataType.Type.DOUBLE: "FLOAT64", +269 exp.DataType.Type.BOOLEAN: "BOOL", +270 exp.DataType.Type.TEXT: "STRING", +271 exp.DataType.Type.VARCHAR: "STRING", +272 exp.DataType.Type.NVARCHAR: "STRING", +273 } +274 PROPERTIES_LOCATION = { +275 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +276 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, +277 } +278 +279 EXPLICIT_UNION = True +280 +281 def array_sql(self, expression: exp.Array) -> str: +282 first_arg = seq_get(expression.expressions, 0) +283 if isinstance(first_arg, exp.Subqueryable): +284 return f"ARRAY{self.wrap(self.sql(first_arg))}" +285 +286 return inline_array_sql(self, expression) 287 -288 def rollback_sql(self, *_) -> str: -289 return "ROLLBACK TRANSACTION" +288 def transaction_sql(self, *_) -> str: +289 return "BEGIN TRANSACTION" 290 -291 def in_unnest_op(self, expression: exp.Unnest) -> str: -292 return self.sql(expression) +291 def commit_sql(self, *_) -> str: +292 return "COMMIT TRANSACTION" 293 -294 def except_op(self, expression: exp.Except) -> str: -295 if not expression.args.get("distinct", False): -296 self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery") -297 return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" -298 -299 def intersect_op(self, expression: exp.Intersect) -> str: -300 if not expression.args.get("distinct", False): -301 self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery") -302 return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" +294 def rollback_sql(self, *_) -> str: +295 return "ROLLBACK TRANSACTION" +296 +297 def in_unnest_op(self, expression: exp.Unnest) -> str: +298 return self.sql(expression) +299 +300 def except_op(self, expression: exp.Except) -> str: +301 if not expression.args.get("distinct", False): +302 self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery") +303 return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" +304 +305 def intersect_op(self, expression: exp.Intersect) -> str: +306 if not expression.args.get("distinct", False): +307 self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery") +308 return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
@@ -415,192 +421,197 @@
-
118class BigQuery(Dialect):
-119    unnest_column_only = True
-120    time_mapping = {
-121        "%M": "%-M",
-122        "%d": "%-d",
-123        "%m": "%-m",
-124        "%y": "%-y",
-125        "%H": "%-H",
-126        "%I": "%-I",
-127        "%S": "%-S",
-128        "%j": "%-j",
-129    }
-130
-131    class Tokenizer(tokens.Tokenizer):
-132        QUOTES = [
-133            (prefix + quote, quote) if prefix else quote
-134            for quote in ["'", '"', '"""', "'''"]
-135            for prefix in ["", "r", "R"]
-136        ]
-137        COMMENTS = ["--", "#", ("/*", "*/")]
-138        IDENTIFIERS = ["`"]
-139        STRING_ESCAPES = ["\\"]
-140        HEX_STRINGS = [("0x", ""), ("0X", "")]
-141
-142        KEYWORDS = {
-143            **tokens.Tokenizer.KEYWORDS,
-144            "BEGIN": TokenType.COMMAND,
-145            "BEGIN TRANSACTION": TokenType.BEGIN,
-146            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
-147            "CURRENT_TIME": TokenType.CURRENT_TIME,
-148            "DECLARE": TokenType.COMMAND,
-149            "GEOGRAPHY": TokenType.GEOGRAPHY,
-150            "FLOAT64": TokenType.DOUBLE,
-151            "INT64": TokenType.BIGINT,
-152            "NOT DETERMINISTIC": TokenType.VOLATILE,
-153            "UNKNOWN": TokenType.NULL,
-154        }
-155        KEYWORDS.pop("DIV")
-156
-157    class Parser(parser.Parser):
-158        FUNCTIONS = {
-159            **parser.Parser.FUNCTIONS,  # type: ignore
-160            "DATE_TRUNC": lambda args: exp.DateTrunc(
-161                unit=exp.Literal.string(seq_get(args, 1).name),  # type: ignore
-162                this=seq_get(args, 0),
-163            ),
-164            "DATE_ADD": _date_add(exp.DateAdd),
-165            "DATETIME_ADD": _date_add(exp.DatetimeAdd),
-166            "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)),
-167            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
-168            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
-169                this=seq_get(args, 0),
-170                expression=seq_get(args, 1),
-171                position=seq_get(args, 2),
-172                occurrence=seq_get(args, 3),
-173                group=exp.Literal.number(1)
-174                if re.compile(str(seq_get(args, 1))).groups == 1
-175                else None,
-176            ),
-177            "TIME_ADD": _date_add(exp.TimeAdd),
-178            "TIMESTAMP_ADD": _date_add(exp.TimestampAdd),
-179            "DATE_SUB": _date_add(exp.DateSub),
-180            "DATETIME_SUB": _date_add(exp.DatetimeSub),
-181            "TIME_SUB": _date_add(exp.TimeSub),
-182            "TIMESTAMP_SUB": _date_add(exp.TimestampSub),
-183            "PARSE_TIMESTAMP": lambda args: exp.StrToTime(
-184                this=seq_get(args, 1), format=seq_get(args, 0)
-185            ),
-186        }
-187
-188        FUNCTION_PARSERS = {
-189            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
-190            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
-191        }
-192        FUNCTION_PARSERS.pop("TRIM")
-193
-194        NO_PAREN_FUNCTIONS = {
-195            **parser.Parser.NO_PAREN_FUNCTIONS,  # type: ignore
-196            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
-197            TokenType.CURRENT_TIME: exp.CurrentTime,
-198        }
-199
-200        NESTED_TYPE_TOKENS = {
-201            *parser.Parser.NESTED_TYPE_TOKENS,  # type: ignore
-202            TokenType.TABLE,
-203        }
-204
-205        ID_VAR_TOKENS = {
-206            *parser.Parser.ID_VAR_TOKENS,  # type: ignore
-207            TokenType.VALUES,
-208        }
-209
-210        PROPERTY_PARSERS = {
-211            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
-212            "NOT DETERMINISTIC": lambda self: self.expression(
-213                exp.VolatilityProperty, this=exp.Literal.string("VOLATILE")
-214            ),
-215        }
-216
-217    class Generator(generator.Generator):
-218        TRANSFORMS = {
-219            **generator.Generator.TRANSFORMS,  # type: ignore
-220            **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES,  # type: ignore
-221            exp.ArraySize: rename_func("ARRAY_LENGTH"),
-222            exp.DateAdd: _date_add_sql("DATE", "ADD"),
-223            exp.DateSub: _date_add_sql("DATE", "SUB"),
-224            exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"),
-225            exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"),
-226            exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})",
-227            exp.DateStrToDate: datestrtodate_sql,
-228            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
-229            exp.GroupConcat: rename_func("STRING_AGG"),
-230            exp.ILike: no_ilike_sql,
-231            exp.IntDiv: rename_func("DIV"),
-232            exp.Select: transforms.preprocess(
-233                [_unqualify_unnest], transforms.delegate("select_sql")
-234            ),
-235            exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})",
-236            exp.TimeAdd: _date_add_sql("TIME", "ADD"),
-237            exp.TimeSub: _date_add_sql("TIME", "SUB"),
-238            exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"),
-239            exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"),
-240            exp.TimeStrToTime: timestrtotime_sql,
-241            exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"),
-242            exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"),
-243            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
-244            exp.VariancePop: rename_func("VAR_POP"),
-245            exp.Values: _derived_table_values_to_unnest,
-246            exp.ReturnsProperty: _returnsproperty_sql,
-247            exp.Create: _create_sql,
-248            exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression),
-249            exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC"
-250            if e.name == "IMMUTABLE"
-251            else "NOT DETERMINISTIC",
-252            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
-253        }
-254
-255        TYPE_MAPPING = {
-256            **generator.Generator.TYPE_MAPPING,  # type: ignore
-257            exp.DataType.Type.TINYINT: "INT64",
-258            exp.DataType.Type.SMALLINT: "INT64",
-259            exp.DataType.Type.INT: "INT64",
-260            exp.DataType.Type.BIGINT: "INT64",
-261            exp.DataType.Type.DECIMAL: "NUMERIC",
-262            exp.DataType.Type.FLOAT: "FLOAT64",
-263            exp.DataType.Type.DOUBLE: "FLOAT64",
-264            exp.DataType.Type.BOOLEAN: "BOOL",
-265            exp.DataType.Type.TEXT: "STRING",
-266            exp.DataType.Type.VARCHAR: "STRING",
-267            exp.DataType.Type.NVARCHAR: "STRING",
-268        }
-269        PROPERTIES_LOCATION = {
-270            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
-271            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
-272        }
-273
-274        EXPLICIT_UNION = True
-275
-276        def array_sql(self, expression: exp.Array) -> str:
-277            first_arg = seq_get(expression.expressions, 0)
-278            if isinstance(first_arg, exp.Subqueryable):
-279                return f"ARRAY{self.wrap(self.sql(first_arg))}"
-280
-281            return inline_array_sql(self, expression)
-282
-283        def transaction_sql(self, *_) -> str:
-284            return "BEGIN TRANSACTION"
-285
-286        def commit_sql(self, *_) -> str:
-287            return "COMMIT TRANSACTION"
+            
119class BigQuery(Dialect):
+120    unnest_column_only = True
+121    time_mapping = {
+122        "%M": "%-M",
+123        "%d": "%-d",
+124        "%m": "%-m",
+125        "%y": "%-y",
+126        "%H": "%-H",
+127        "%I": "%-I",
+128        "%S": "%-S",
+129        "%j": "%-j",
+130    }
+131
+132    class Tokenizer(tokens.Tokenizer):
+133        QUOTES = [
+134            (prefix + quote, quote) if prefix else quote
+135            for quote in ["'", '"', '"""', "'''"]
+136            for prefix in ["", "r", "R"]
+137        ]
+138        COMMENTS = ["--", "#", ("/*", "*/")]
+139        IDENTIFIERS = ["`"]
+140        STRING_ESCAPES = ["\\"]
+141        HEX_STRINGS = [("0x", ""), ("0X", "")]
+142
+143        KEYWORDS = {
+144            **tokens.Tokenizer.KEYWORDS,
+145            "BEGIN": TokenType.COMMAND,
+146            "BEGIN TRANSACTION": TokenType.BEGIN,
+147            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
+148            "CURRENT_TIME": TokenType.CURRENT_TIME,
+149            "DECLARE": TokenType.COMMAND,
+150            "GEOGRAPHY": TokenType.GEOGRAPHY,
+151            "FLOAT64": TokenType.DOUBLE,
+152            "INT64": TokenType.BIGINT,
+153            "NOT DETERMINISTIC": TokenType.VOLATILE,
+154            "UNKNOWN": TokenType.NULL,
+155        }
+156        KEYWORDS.pop("DIV")
+157
+158    class Parser(parser.Parser):
+159        FUNCTIONS = {
+160            **parser.Parser.FUNCTIONS,  # type: ignore
+161            "DATE_TRUNC": lambda args: exp.DateTrunc(
+162                unit=exp.Literal.string(seq_get(args, 1).name),  # type: ignore
+163                this=seq_get(args, 0),
+164            ),
+165            "DATE_ADD": _date_add(exp.DateAdd),
+166            "DATETIME_ADD": _date_add(exp.DatetimeAdd),
+167            "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)),
+168            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
+169            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
+170                this=seq_get(args, 0),
+171                expression=seq_get(args, 1),
+172                position=seq_get(args, 2),
+173                occurrence=seq_get(args, 3),
+174                group=exp.Literal.number(1)
+175                if re.compile(str(seq_get(args, 1))).groups == 1
+176                else None,
+177            ),
+178            "TIME_ADD": _date_add(exp.TimeAdd),
+179            "TIMESTAMP_ADD": _date_add(exp.TimestampAdd),
+180            "DATE_SUB": _date_add(exp.DateSub),
+181            "DATETIME_SUB": _date_add(exp.DatetimeSub),
+182            "TIME_SUB": _date_add(exp.TimeSub),
+183            "TIMESTAMP_SUB": _date_add(exp.TimestampSub),
+184            "PARSE_TIMESTAMP": lambda args: exp.StrToTime(
+185                this=seq_get(args, 1), format=seq_get(args, 0)
+186            ),
+187        }
+188
+189        FUNCTION_PARSERS = {
+190            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
+191            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
+192        }
+193        FUNCTION_PARSERS.pop("TRIM")
+194
+195        NO_PAREN_FUNCTIONS = {
+196            **parser.Parser.NO_PAREN_FUNCTIONS,  # type: ignore
+197            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
+198            TokenType.CURRENT_TIME: exp.CurrentTime,
+199        }
+200
+201        NESTED_TYPE_TOKENS = {
+202            *parser.Parser.NESTED_TYPE_TOKENS,  # type: ignore
+203            TokenType.TABLE,
+204        }
+205
+206        ID_VAR_TOKENS = {
+207            *parser.Parser.ID_VAR_TOKENS,  # type: ignore
+208            TokenType.VALUES,
+209        }
+210
+211        PROPERTY_PARSERS = {
+212            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
+213            "NOT DETERMINISTIC": lambda self: self.expression(
+214                exp.VolatilityProperty, this=exp.Literal.string("VOLATILE")
+215            ),
+216        }
+217
+218        INTEGER_DIVISION = False
+219
+220    class Generator(generator.Generator):
+221        INTEGER_DIVISION = False
+222
+223        TRANSFORMS = {
+224            **generator.Generator.TRANSFORMS,  # type: ignore
+225            **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES,  # type: ignore
+226            exp.ArraySize: rename_func("ARRAY_LENGTH"),
+227            exp.DateAdd: _date_add_sql("DATE", "ADD"),
+228            exp.DateSub: _date_add_sql("DATE", "SUB"),
+229            exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"),
+230            exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"),
+231            exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})",
+232            exp.DateStrToDate: datestrtodate_sql,
+233            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
+234            exp.GroupConcat: rename_func("STRING_AGG"),
+235            exp.ILike: no_ilike_sql,
+236            exp.IntDiv: rename_func("DIV"),
+237            exp.Min: min_or_least,
+238            exp.Select: transforms.preprocess(
+239                [_unqualify_unnest], transforms.delegate("select_sql")
+240            ),
+241            exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})",
+242            exp.TimeAdd: _date_add_sql("TIME", "ADD"),
+243            exp.TimeSub: _date_add_sql("TIME", "SUB"),
+244            exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"),
+245            exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"),
+246            exp.TimeStrToTime: timestrtotime_sql,
+247            exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"),
+248            exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"),
+249            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
+250            exp.VariancePop: rename_func("VAR_POP"),
+251            exp.Values: _derived_table_values_to_unnest,
+252            exp.ReturnsProperty: _returnsproperty_sql,
+253            exp.Create: _create_sql,
+254            exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression),
+255            exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC"
+256            if e.name == "IMMUTABLE"
+257            else "NOT DETERMINISTIC",
+258            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
+259        }
+260
+261        TYPE_MAPPING = {
+262            **generator.Generator.TYPE_MAPPING,  # type: ignore
+263            exp.DataType.Type.TINYINT: "INT64",
+264            exp.DataType.Type.SMALLINT: "INT64",
+265            exp.DataType.Type.INT: "INT64",
+266            exp.DataType.Type.BIGINT: "INT64",
+267            exp.DataType.Type.DECIMAL: "NUMERIC",
+268            exp.DataType.Type.FLOAT: "FLOAT64",
+269            exp.DataType.Type.DOUBLE: "FLOAT64",
+270            exp.DataType.Type.BOOLEAN: "BOOL",
+271            exp.DataType.Type.TEXT: "STRING",
+272            exp.DataType.Type.VARCHAR: "STRING",
+273            exp.DataType.Type.NVARCHAR: "STRING",
+274        }
+275        PROPERTIES_LOCATION = {
+276            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+277            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
+278        }
+279
+280        EXPLICIT_UNION = True
+281
+282        def array_sql(self, expression: exp.Array) -> str:
+283            first_arg = seq_get(expression.expressions, 0)
+284            if isinstance(first_arg, exp.Subqueryable):
+285                return f"ARRAY{self.wrap(self.sql(first_arg))}"
+286
+287            return inline_array_sql(self, expression)
 288
-289        def rollback_sql(self, *_) -> str:
-290            return "ROLLBACK TRANSACTION"
+289        def transaction_sql(self, *_) -> str:
+290            return "BEGIN TRANSACTION"
 291
-292        def in_unnest_op(self, expression: exp.Unnest) -> str:
-293            return self.sql(expression)
+292        def commit_sql(self, *_) -> str:
+293            return "COMMIT TRANSACTION"
 294
-295        def except_op(self, expression: exp.Except) -> str:
-296            if not expression.args.get("distinct", False):
-297                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
-298            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
-299
-300        def intersect_op(self, expression: exp.Intersect) -> str:
-301            if not expression.args.get("distinct", False):
-302                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
-303            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
+295        def rollback_sql(self, *_) -> str:
+296            return "ROLLBACK TRANSACTION"
+297
+298        def in_unnest_op(self, expression: exp.Unnest) -> str:
+299            return self.sql(expression)
+300
+301        def except_op(self, expression: exp.Except) -> str:
+302            if not expression.args.get("distinct", False):
+303                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
+304            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
+305
+306        def intersect_op(self, expression: exp.Intersect) -> str:
+307            if not expression.args.get("distinct", False):
+308                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
+309            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
 
@@ -634,31 +645,31 @@
-
131    class Tokenizer(tokens.Tokenizer):
-132        QUOTES = [
-133            (prefix + quote, quote) if prefix else quote
-134            for quote in ["'", '"', '"""', "'''"]
-135            for prefix in ["", "r", "R"]
-136        ]
-137        COMMENTS = ["--", "#", ("/*", "*/")]
-138        IDENTIFIERS = ["`"]
-139        STRING_ESCAPES = ["\\"]
-140        HEX_STRINGS = [("0x", ""), ("0X", "")]
-141
-142        KEYWORDS = {
-143            **tokens.Tokenizer.KEYWORDS,
-144            "BEGIN": TokenType.COMMAND,
-145            "BEGIN TRANSACTION": TokenType.BEGIN,
-146            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
-147            "CURRENT_TIME": TokenType.CURRENT_TIME,
-148            "DECLARE": TokenType.COMMAND,
-149            "GEOGRAPHY": TokenType.GEOGRAPHY,
-150            "FLOAT64": TokenType.DOUBLE,
-151            "INT64": TokenType.BIGINT,
-152            "NOT DETERMINISTIC": TokenType.VOLATILE,
-153            "UNKNOWN": TokenType.NULL,
-154        }
-155        KEYWORDS.pop("DIV")
+            
132    class Tokenizer(tokens.Tokenizer):
+133        QUOTES = [
+134            (prefix + quote, quote) if prefix else quote
+135            for quote in ["'", '"', '"""', "'''"]
+136            for prefix in ["", "r", "R"]
+137        ]
+138        COMMENTS = ["--", "#", ("/*", "*/")]
+139        IDENTIFIERS = ["`"]
+140        STRING_ESCAPES = ["\\"]
+141        HEX_STRINGS = [("0x", ""), ("0X", "")]
+142
+143        KEYWORDS = {
+144            **tokens.Tokenizer.KEYWORDS,
+145            "BEGIN": TokenType.COMMAND,
+146            "BEGIN TRANSACTION": TokenType.BEGIN,
+147            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
+148            "CURRENT_TIME": TokenType.CURRENT_TIME,
+149            "DECLARE": TokenType.COMMAND,
+150            "GEOGRAPHY": TokenType.GEOGRAPHY,
+151            "FLOAT64": TokenType.DOUBLE,
+152            "INT64": TokenType.BIGINT,
+153            "NOT DETERMINISTIC": TokenType.VOLATILE,
+154            "UNKNOWN": TokenType.NULL,
+155        }
+156        KEYWORDS.pop("DIV")
 
@@ -686,65 +697,67 @@
-
157    class Parser(parser.Parser):
-158        FUNCTIONS = {
-159            **parser.Parser.FUNCTIONS,  # type: ignore
-160            "DATE_TRUNC": lambda args: exp.DateTrunc(
-161                unit=exp.Literal.string(seq_get(args, 1).name),  # type: ignore
-162                this=seq_get(args, 0),
-163            ),
-164            "DATE_ADD": _date_add(exp.DateAdd),
-165            "DATETIME_ADD": _date_add(exp.DatetimeAdd),
-166            "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)),
-167            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
-168            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
-169                this=seq_get(args, 0),
-170                expression=seq_get(args, 1),
-171                position=seq_get(args, 2),
-172                occurrence=seq_get(args, 3),
-173                group=exp.Literal.number(1)
-174                if re.compile(str(seq_get(args, 1))).groups == 1
-175                else None,
-176            ),
-177            "TIME_ADD": _date_add(exp.TimeAdd),
-178            "TIMESTAMP_ADD": _date_add(exp.TimestampAdd),
-179            "DATE_SUB": _date_add(exp.DateSub),
-180            "DATETIME_SUB": _date_add(exp.DatetimeSub),
-181            "TIME_SUB": _date_add(exp.TimeSub),
-182            "TIMESTAMP_SUB": _date_add(exp.TimestampSub),
-183            "PARSE_TIMESTAMP": lambda args: exp.StrToTime(
-184                this=seq_get(args, 1), format=seq_get(args, 0)
-185            ),
-186        }
-187
-188        FUNCTION_PARSERS = {
-189            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
-190            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
-191        }
-192        FUNCTION_PARSERS.pop("TRIM")
-193
-194        NO_PAREN_FUNCTIONS = {
-195            **parser.Parser.NO_PAREN_FUNCTIONS,  # type: ignore
-196            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
-197            TokenType.CURRENT_TIME: exp.CurrentTime,
-198        }
-199
-200        NESTED_TYPE_TOKENS = {
-201            *parser.Parser.NESTED_TYPE_TOKENS,  # type: ignore
-202            TokenType.TABLE,
-203        }
-204
-205        ID_VAR_TOKENS = {
-206            *parser.Parser.ID_VAR_TOKENS,  # type: ignore
-207            TokenType.VALUES,
-208        }
-209
-210        PROPERTY_PARSERS = {
-211            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
-212            "NOT DETERMINISTIC": lambda self: self.expression(
-213                exp.VolatilityProperty, this=exp.Literal.string("VOLATILE")
-214            ),
-215        }
+            
158    class Parser(parser.Parser):
+159        FUNCTIONS = {
+160            **parser.Parser.FUNCTIONS,  # type: ignore
+161            "DATE_TRUNC": lambda args: exp.DateTrunc(
+162                unit=exp.Literal.string(seq_get(args, 1).name),  # type: ignore
+163                this=seq_get(args, 0),
+164            ),
+165            "DATE_ADD": _date_add(exp.DateAdd),
+166            "DATETIME_ADD": _date_add(exp.DatetimeAdd),
+167            "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)),
+168            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
+169            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
+170                this=seq_get(args, 0),
+171                expression=seq_get(args, 1),
+172                position=seq_get(args, 2),
+173                occurrence=seq_get(args, 3),
+174                group=exp.Literal.number(1)
+175                if re.compile(str(seq_get(args, 1))).groups == 1
+176                else None,
+177            ),
+178            "TIME_ADD": _date_add(exp.TimeAdd),
+179            "TIMESTAMP_ADD": _date_add(exp.TimestampAdd),
+180            "DATE_SUB": _date_add(exp.DateSub),
+181            "DATETIME_SUB": _date_add(exp.DatetimeSub),
+182            "TIME_SUB": _date_add(exp.TimeSub),
+183            "TIMESTAMP_SUB": _date_add(exp.TimestampSub),
+184            "PARSE_TIMESTAMP": lambda args: exp.StrToTime(
+185                this=seq_get(args, 1), format=seq_get(args, 0)
+186            ),
+187        }
+188
+189        FUNCTION_PARSERS = {
+190            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
+191            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
+192        }
+193        FUNCTION_PARSERS.pop("TRIM")
+194
+195        NO_PAREN_FUNCTIONS = {
+196            **parser.Parser.NO_PAREN_FUNCTIONS,  # type: ignore
+197            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
+198            TokenType.CURRENT_TIME: exp.CurrentTime,
+199        }
+200
+201        NESTED_TYPE_TOKENS = {
+202            *parser.Parser.NESTED_TYPE_TOKENS,  # type: ignore
+203            TokenType.TABLE,
+204        }
+205
+206        ID_VAR_TOKENS = {
+207            *parser.Parser.ID_VAR_TOKENS,  # type: ignore
+208            TokenType.VALUES,
+209        }
+210
+211        PROPERTY_PARSERS = {
+212            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
+213            "NOT DETERMINISTIC": lambda self: self.expression(
+214                exp.VolatilityProperty, this=exp.Literal.string("VOLATILE")
+215            ),
+216        }
+217
+218        INTEGER_DIVISION = False
 
@@ -801,93 +814,96 @@ Default: "nulls_are_small"
-
217    class Generator(generator.Generator):
-218        TRANSFORMS = {
-219            **generator.Generator.TRANSFORMS,  # type: ignore
-220            **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES,  # type: ignore
-221            exp.ArraySize: rename_func("ARRAY_LENGTH"),
-222            exp.DateAdd: _date_add_sql("DATE", "ADD"),
-223            exp.DateSub: _date_add_sql("DATE", "SUB"),
-224            exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"),
-225            exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"),
-226            exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})",
-227            exp.DateStrToDate: datestrtodate_sql,
-228            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
-229            exp.GroupConcat: rename_func("STRING_AGG"),
-230            exp.ILike: no_ilike_sql,
-231            exp.IntDiv: rename_func("DIV"),
-232            exp.Select: transforms.preprocess(
-233                [_unqualify_unnest], transforms.delegate("select_sql")
-234            ),
-235            exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})",
-236            exp.TimeAdd: _date_add_sql("TIME", "ADD"),
-237            exp.TimeSub: _date_add_sql("TIME", "SUB"),
-238            exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"),
-239            exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"),
-240            exp.TimeStrToTime: timestrtotime_sql,
-241            exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"),
-242            exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"),
-243            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
-244            exp.VariancePop: rename_func("VAR_POP"),
-245            exp.Values: _derived_table_values_to_unnest,
-246            exp.ReturnsProperty: _returnsproperty_sql,
-247            exp.Create: _create_sql,
-248            exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression),
-249            exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC"
-250            if e.name == "IMMUTABLE"
-251            else "NOT DETERMINISTIC",
-252            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
-253        }
-254
-255        TYPE_MAPPING = {
-256            **generator.Generator.TYPE_MAPPING,  # type: ignore
-257            exp.DataType.Type.TINYINT: "INT64",
-258            exp.DataType.Type.SMALLINT: "INT64",
-259            exp.DataType.Type.INT: "INT64",
-260            exp.DataType.Type.BIGINT: "INT64",
-261            exp.DataType.Type.DECIMAL: "NUMERIC",
-262            exp.DataType.Type.FLOAT: "FLOAT64",
-263            exp.DataType.Type.DOUBLE: "FLOAT64",
-264            exp.DataType.Type.BOOLEAN: "BOOL",
-265            exp.DataType.Type.TEXT: "STRING",
-266            exp.DataType.Type.VARCHAR: "STRING",
-267            exp.DataType.Type.NVARCHAR: "STRING",
-268        }
-269        PROPERTIES_LOCATION = {
-270            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
-271            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
-272        }
-273
-274        EXPLICIT_UNION = True
-275
-276        def array_sql(self, expression: exp.Array) -> str:
-277            first_arg = seq_get(expression.expressions, 0)
-278            if isinstance(first_arg, exp.Subqueryable):
-279                return f"ARRAY{self.wrap(self.sql(first_arg))}"
-280
-281            return inline_array_sql(self, expression)
-282
-283        def transaction_sql(self, *_) -> str:
-284            return "BEGIN TRANSACTION"
-285
-286        def commit_sql(self, *_) -> str:
-287            return "COMMIT TRANSACTION"
+            
220    class Generator(generator.Generator):
+221        INTEGER_DIVISION = False
+222
+223        TRANSFORMS = {
+224            **generator.Generator.TRANSFORMS,  # type: ignore
+225            **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES,  # type: ignore
+226            exp.ArraySize: rename_func("ARRAY_LENGTH"),
+227            exp.DateAdd: _date_add_sql("DATE", "ADD"),
+228            exp.DateSub: _date_add_sql("DATE", "SUB"),
+229            exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"),
+230            exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"),
+231            exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})",
+232            exp.DateStrToDate: datestrtodate_sql,
+233            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
+234            exp.GroupConcat: rename_func("STRING_AGG"),
+235            exp.ILike: no_ilike_sql,
+236            exp.IntDiv: rename_func("DIV"),
+237            exp.Min: min_or_least,
+238            exp.Select: transforms.preprocess(
+239                [_unqualify_unnest], transforms.delegate("select_sql")
+240            ),
+241            exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})",
+242            exp.TimeAdd: _date_add_sql("TIME", "ADD"),
+243            exp.TimeSub: _date_add_sql("TIME", "SUB"),
+244            exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"),
+245            exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"),
+246            exp.TimeStrToTime: timestrtotime_sql,
+247            exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"),
+248            exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"),
+249            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
+250            exp.VariancePop: rename_func("VAR_POP"),
+251            exp.Values: _derived_table_values_to_unnest,
+252            exp.ReturnsProperty: _returnsproperty_sql,
+253            exp.Create: _create_sql,
+254            exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression),
+255            exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC"
+256            if e.name == "IMMUTABLE"
+257            else "NOT DETERMINISTIC",
+258            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
+259        }
+260
+261        TYPE_MAPPING = {
+262            **generator.Generator.TYPE_MAPPING,  # type: ignore
+263            exp.DataType.Type.TINYINT: "INT64",
+264            exp.DataType.Type.SMALLINT: "INT64",
+265            exp.DataType.Type.INT: "INT64",
+266            exp.DataType.Type.BIGINT: "INT64",
+267            exp.DataType.Type.DECIMAL: "NUMERIC",
+268            exp.DataType.Type.FLOAT: "FLOAT64",
+269            exp.DataType.Type.DOUBLE: "FLOAT64",
+270            exp.DataType.Type.BOOLEAN: "BOOL",
+271            exp.DataType.Type.TEXT: "STRING",
+272            exp.DataType.Type.VARCHAR: "STRING",
+273            exp.DataType.Type.NVARCHAR: "STRING",
+274        }
+275        PROPERTIES_LOCATION = {
+276            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+277            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
+278        }
+279
+280        EXPLICIT_UNION = True
+281
+282        def array_sql(self, expression: exp.Array) -> str:
+283            first_arg = seq_get(expression.expressions, 0)
+284            if isinstance(first_arg, exp.Subqueryable):
+285                return f"ARRAY{self.wrap(self.sql(first_arg))}"
+286
+287            return inline_array_sql(self, expression)
 288
-289        def rollback_sql(self, *_) -> str:
-290            return "ROLLBACK TRANSACTION"
+289        def transaction_sql(self, *_) -> str:
+290            return "BEGIN TRANSACTION"
 291
-292        def in_unnest_op(self, expression: exp.Unnest) -> str:
-293            return self.sql(expression)
+292        def commit_sql(self, *_) -> str:
+293            return "COMMIT TRANSACTION"
 294
-295        def except_op(self, expression: exp.Except) -> str:
-296            if not expression.args.get("distinct", False):
-297                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
-298            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
-299
-300        def intersect_op(self, expression: exp.Intersect) -> str:
-301            if not expression.args.get("distinct", False):
-302                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
-303            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
+295        def rollback_sql(self, *_) -> str:
+296            return "ROLLBACK TRANSACTION"
+297
+298        def in_unnest_op(self, expression: exp.Unnest) -> str:
+299            return self.sql(expression)
+300
+301        def except_op(self, expression: exp.Except) -> str:
+302            if not expression.args.get("distinct", False):
+303                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
+304            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
+305
+306        def intersect_op(self, expression: exp.Intersect) -> str:
+307            if not expression.args.get("distinct", False):
+308                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
+309            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
 
@@ -947,12 +963,12 @@ Default: True
-
276        def array_sql(self, expression: exp.Array) -> str:
-277            first_arg = seq_get(expression.expressions, 0)
-278            if isinstance(first_arg, exp.Subqueryable):
-279                return f"ARRAY{self.wrap(self.sql(first_arg))}"
-280
-281            return inline_array_sql(self, expression)
+            
282        def array_sql(self, expression: exp.Array) -> str:
+283            first_arg = seq_get(expression.expressions, 0)
+284            if isinstance(first_arg, exp.Subqueryable):
+285                return f"ARRAY{self.wrap(self.sql(first_arg))}"
+286
+287            return inline_array_sql(self, expression)
 
@@ -970,8 +986,8 @@ Default: True
-
283        def transaction_sql(self, *_) -> str:
-284            return "BEGIN TRANSACTION"
+            
289        def transaction_sql(self, *_) -> str:
+290            return "BEGIN TRANSACTION"
 
@@ -989,8 +1005,8 @@ Default: True
-
286        def commit_sql(self, *_) -> str:
-287            return "COMMIT TRANSACTION"
+            
292        def commit_sql(self, *_) -> str:
+293            return "COMMIT TRANSACTION"
 
@@ -1008,8 +1024,8 @@ Default: True
-
289        def rollback_sql(self, *_) -> str:
-290            return "ROLLBACK TRANSACTION"
+            
295        def rollback_sql(self, *_) -> str:
+296            return "ROLLBACK TRANSACTION"
 
@@ -1027,8 +1043,8 @@ Default: True
-
292        def in_unnest_op(self, expression: exp.Unnest) -> str:
-293            return self.sql(expression)
+            
298        def in_unnest_op(self, expression: exp.Unnest) -> str:
+299            return self.sql(expression)
 
@@ -1046,10 +1062,10 @@ Default: True
-
295        def except_op(self, expression: exp.Except) -> str:
-296            if not expression.args.get("distinct", False):
-297                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
-298            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
+            
301        def except_op(self, expression: exp.Except) -> str:
+302            if not expression.args.get("distinct", False):
+303                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
+304            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
 
@@ -1067,10 +1083,10 @@ Default: True
-
300        def intersect_op(self, expression: exp.Intersect) -> str:
-301            if not expression.args.get("distinct", False):
-302                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
-303            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
+            
306        def intersect_op(self, expression: exp.Intersect) -> str:
+307            if not expression.args.get("distinct", False):
+308                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
+309            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
 
@@ -1147,6 +1163,7 @@ Default: True
intersect_sql
introducer_sql
pseudotype_sql
+
returning_sql
rowformatdelimitedproperty_sql
table_sql
tablesample_sql
@@ -1244,6 +1261,7 @@ Default: True
intdiv_sql
dpipe_sql
div_sql
+
floatdiv_sql
overlaps_sql
distance_sql
dot_sql
diff --git a/docs/sqlglot/dialects/clickhouse.html b/docs/sqlglot/dialects/clickhouse.html index ff7565d..36f93b2 100644 --- a/docs/sqlglot/dialects/clickhouse.html +++ b/docs/sqlglot/dialects/clickhouse.html @@ -138,86 +138,89 @@
56 57 TABLE_ALIAS_TOKENS = {*parser.Parser.TABLE_ALIAS_TOKENS} - {TokenType.ANY} # type: ignore 58 - 59 def _parse_in( - 60 self, this: t.Optional[exp.Expression], is_global: bool = False - 61 ) -> exp.Expression: - 62 this = super()._parse_in(this) - 63 this.set("is_global", is_global) - 64 return this - 65 - 66 def _parse_table( - 67 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None - 68 ) -> t.Optional[exp.Expression]: - 69 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) - 70 - 71 if self._match(TokenType.FINAL): - 72 this = self.expression(exp.Final, this=this) - 73 - 74 return this + 59 INTEGER_DIVISION = False + 60 + 61 def _parse_in( + 62 self, this: t.Optional[exp.Expression], is_global: bool = False + 63 ) -> exp.Expression: + 64 this = super()._parse_in(this) + 65 this.set("is_global", is_global) + 66 return this + 67 + 68 def _parse_table( + 69 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None + 70 ) -> t.Optional[exp.Expression]: + 71 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) + 72 + 73 if self._match(TokenType.FINAL): + 74 this = self.expression(exp.Final, this=this) 75 - 76 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: - 77 return super()._parse_position(haystack_first=True) - 78 - 79 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ - 80 def _parse_cte(self) -> exp.Expression: - 81 index = self._index - 82 try: - 83 # WITH <identifier> AS <subquery expression> - 84 return super()._parse_cte() - 85 except ParseError: - 86 # WITH <expression> AS <identifier> - 87 self._retreat(index) - 88 statement = self._parse_statement() - 89 - 90 if statement and isinstance(statement.this, exp.Alias): - 91 self.raise_error("Expected CTE to have alias") - 92 - 93 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) + 76 return this + 77 + 78 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: + 79 return super()._parse_position(haystack_first=True) + 80 + 81 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ + 82 def _parse_cte(self) -> exp.Expression: + 83 index = self._index + 84 try: + 85 # WITH <identifier> AS <subquery expression> + 86 return super()._parse_cte() + 87 except ParseError: + 88 # WITH <expression> AS <identifier> + 89 self._retreat(index) + 90 statement = self._parse_statement() + 91 + 92 if statement and isinstance(statement.this, exp.Alias): + 93 self.raise_error("Expected CTE to have alias") 94 - 95 class Generator(generator.Generator): - 96 STRUCT_DELIMITER = ("(", ")") - 97 - 98 TYPE_MAPPING = { - 99 **generator.Generator.TYPE_MAPPING, # type: ignore -100 exp.DataType.Type.NULLABLE: "Nullable", -101 exp.DataType.Type.DATETIME: "DateTime64", -102 exp.DataType.Type.MAP: "Map", -103 exp.DataType.Type.ARRAY: "Array", -104 exp.DataType.Type.STRUCT: "Tuple", -105 exp.DataType.Type.TINYINT: "Int8", -106 exp.DataType.Type.SMALLINT: "Int16", -107 exp.DataType.Type.INT: "Int32", -108 exp.DataType.Type.BIGINT: "Int64", -109 exp.DataType.Type.FLOAT: "Float32", -110 exp.DataType.Type.DOUBLE: "Float64", -111 } -112 -113 TRANSFORMS = { -114 **generator.Generator.TRANSFORMS, # type: ignore -115 exp.Array: inline_array_sql, -116 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", -117 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", -118 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), -119 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), -120 exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}", -121 exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}", -122 exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}", -123 } -124 -125 EXPLICIT_UNION = True -126 -127 def _param_args_sql( -128 self, expression: exp.Expression, params_name: str, args_name: str -129 ) -> str: -130 params = self.format_args(self.expressions(expression, params_name)) -131 args = self.format_args(self.expressions(expression, args_name)) -132 return f"({params})({args})" -133 -134 def cte_sql(self, expression: exp.CTE) -> str: -135 if isinstance(expression.this, exp.Alias): -136 return self.sql(expression, "this") -137 -138 return super().cte_sql(expression) + 95 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) + 96 + 97 class Generator(generator.Generator): + 98 STRUCT_DELIMITER = ("(", ")") + 99 INTEGER_DIVISION = False +100 +101 TYPE_MAPPING = { +102 **generator.Generator.TYPE_MAPPING, # type: ignore +103 exp.DataType.Type.NULLABLE: "Nullable", +104 exp.DataType.Type.DATETIME: "DateTime64", +105 exp.DataType.Type.MAP: "Map", +106 exp.DataType.Type.ARRAY: "Array", +107 exp.DataType.Type.STRUCT: "Tuple", +108 exp.DataType.Type.TINYINT: "Int8", +109 exp.DataType.Type.SMALLINT: "Int16", +110 exp.DataType.Type.INT: "Int32", +111 exp.DataType.Type.BIGINT: "Int64", +112 exp.DataType.Type.FLOAT: "Float32", +113 exp.DataType.Type.DOUBLE: "Float64", +114 } +115 +116 TRANSFORMS = { +117 **generator.Generator.TRANSFORMS, # type: ignore +118 exp.Array: inline_array_sql, +119 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", +120 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", +121 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), +122 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), +123 exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}", +124 exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}", +125 exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}", +126 } +127 +128 EXPLICIT_UNION = True +129 +130 def _param_args_sql( +131 self, expression: exp.Expression, params_name: str, args_name: str +132 ) -> str: +133 params = self.format_args(self.expressions(expression, params_name)) +134 args = self.format_args(self.expressions(expression, args_name)) +135 return f"({params})({args})" +136 +137 def cte_sql(self, expression: exp.CTE) -> str: +138 if isinstance(expression.this, exp.Alias): +139 return self.sql(expression, "this") +140 +141 return super().cte_sql(expression)
@@ -275,86 +278,89 @@ 57 58 TABLE_ALIAS_TOKENS = {*parser.Parser.TABLE_ALIAS_TOKENS} - {TokenType.ANY} # type: ignore 59 - 60 def _parse_in( - 61 self, this: t.Optional[exp.Expression], is_global: bool = False - 62 ) -> exp.Expression: - 63 this = super()._parse_in(this) - 64 this.set("is_global", is_global) - 65 return this - 66 - 67 def _parse_table( - 68 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None - 69 ) -> t.Optional[exp.Expression]: - 70 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) - 71 - 72 if self._match(TokenType.FINAL): - 73 this = self.expression(exp.Final, this=this) - 74 - 75 return this + 60 INTEGER_DIVISION = False + 61 + 62 def _parse_in( + 63 self, this: t.Optional[exp.Expression], is_global: bool = False + 64 ) -> exp.Expression: + 65 this = super()._parse_in(this) + 66 this.set("is_global", is_global) + 67 return this + 68 + 69 def _parse_table( + 70 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None + 71 ) -> t.Optional[exp.Expression]: + 72 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) + 73 + 74 if self._match(TokenType.FINAL): + 75 this = self.expression(exp.Final, this=this) 76 - 77 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: - 78 return super()._parse_position(haystack_first=True) - 79 - 80 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ - 81 def _parse_cte(self) -> exp.Expression: - 82 index = self._index - 83 try: - 84 # WITH <identifier> AS <subquery expression> - 85 return super()._parse_cte() - 86 except ParseError: - 87 # WITH <expression> AS <identifier> - 88 self._retreat(index) - 89 statement = self._parse_statement() - 90 - 91 if statement and isinstance(statement.this, exp.Alias): - 92 self.raise_error("Expected CTE to have alias") - 93 - 94 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) + 77 return this + 78 + 79 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: + 80 return super()._parse_position(haystack_first=True) + 81 + 82 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ + 83 def _parse_cte(self) -> exp.Expression: + 84 index = self._index + 85 try: + 86 # WITH <identifier> AS <subquery expression> + 87 return super()._parse_cte() + 88 except ParseError: + 89 # WITH <expression> AS <identifier> + 90 self._retreat(index) + 91 statement = self._parse_statement() + 92 + 93 if statement and isinstance(statement.this, exp.Alias): + 94 self.raise_error("Expected CTE to have alias") 95 - 96 class Generator(generator.Generator): - 97 STRUCT_DELIMITER = ("(", ")") - 98 - 99 TYPE_MAPPING = { -100 **generator.Generator.TYPE_MAPPING, # type: ignore -101 exp.DataType.Type.NULLABLE: "Nullable", -102 exp.DataType.Type.DATETIME: "DateTime64", -103 exp.DataType.Type.MAP: "Map", -104 exp.DataType.Type.ARRAY: "Array", -105 exp.DataType.Type.STRUCT: "Tuple", -106 exp.DataType.Type.TINYINT: "Int8", -107 exp.DataType.Type.SMALLINT: "Int16", -108 exp.DataType.Type.INT: "Int32", -109 exp.DataType.Type.BIGINT: "Int64", -110 exp.DataType.Type.FLOAT: "Float32", -111 exp.DataType.Type.DOUBLE: "Float64", -112 } -113 -114 TRANSFORMS = { -115 **generator.Generator.TRANSFORMS, # type: ignore -116 exp.Array: inline_array_sql, -117 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", -118 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", -119 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), -120 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), -121 exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}", -122 exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}", -123 exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}", -124 } -125 -126 EXPLICIT_UNION = True -127 -128 def _param_args_sql( -129 self, expression: exp.Expression, params_name: str, args_name: str -130 ) -> str: -131 params = self.format_args(self.expressions(expression, params_name)) -132 args = self.format_args(self.expressions(expression, args_name)) -133 return f"({params})({args})" -134 -135 def cte_sql(self, expression: exp.CTE) -> str: -136 if isinstance(expression.this, exp.Alias): -137 return self.sql(expression, "this") -138 -139 return super().cte_sql(expression) + 96 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) + 97 + 98 class Generator(generator.Generator): + 99 STRUCT_DELIMITER = ("(", ")") +100 INTEGER_DIVISION = False +101 +102 TYPE_MAPPING = { +103 **generator.Generator.TYPE_MAPPING, # type: ignore +104 exp.DataType.Type.NULLABLE: "Nullable", +105 exp.DataType.Type.DATETIME: "DateTime64", +106 exp.DataType.Type.MAP: "Map", +107 exp.DataType.Type.ARRAY: "Array", +108 exp.DataType.Type.STRUCT: "Tuple", +109 exp.DataType.Type.TINYINT: "Int8", +110 exp.DataType.Type.SMALLINT: "Int16", +111 exp.DataType.Type.INT: "Int32", +112 exp.DataType.Type.BIGINT: "Int64", +113 exp.DataType.Type.FLOAT: "Float32", +114 exp.DataType.Type.DOUBLE: "Float64", +115 } +116 +117 TRANSFORMS = { +118 **generator.Generator.TRANSFORMS, # type: ignore +119 exp.Array: inline_array_sql, +120 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", +121 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", +122 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), +123 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), +124 exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}", +125 exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}", +126 exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}", +127 } +128 +129 EXPLICIT_UNION = True +130 +131 def _param_args_sql( +132 self, expression: exp.Expression, params_name: str, args_name: str +133 ) -> str: +134 params = self.format_args(self.expressions(expression, params_name)) +135 args = self.format_args(self.expressions(expression, args_name)) +136 return f"({params})({args})" +137 +138 def cte_sql(self, expression: exp.CTE) -> str: +139 if isinstance(expression.this, exp.Alias): +140 return self.sql(expression, "this") +141 +142 return super().cte_sql(expression)
@@ -452,41 +458,43 @@ 57 58 TABLE_ALIAS_TOKENS = {*parser.Parser.TABLE_ALIAS_TOKENS} - {TokenType.ANY} # type: ignore 59 -60 def _parse_in( -61 self, this: t.Optional[exp.Expression], is_global: bool = False -62 ) -> exp.Expression: -63 this = super()._parse_in(this) -64 this.set("is_global", is_global) -65 return this -66 -67 def _parse_table( -68 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None -69 ) -> t.Optional[exp.Expression]: -70 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) -71 -72 if self._match(TokenType.FINAL): -73 this = self.expression(exp.Final, this=this) -74 -75 return this +60 INTEGER_DIVISION = False +61 +62 def _parse_in( +63 self, this: t.Optional[exp.Expression], is_global: bool = False +64 ) -> exp.Expression: +65 this = super()._parse_in(this) +66 this.set("is_global", is_global) +67 return this +68 +69 def _parse_table( +70 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None +71 ) -> t.Optional[exp.Expression]: +72 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) +73 +74 if self._match(TokenType.FINAL): +75 this = self.expression(exp.Final, this=this) 76 -77 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: -78 return super()._parse_position(haystack_first=True) -79 -80 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ -81 def _parse_cte(self) -> exp.Expression: -82 index = self._index -83 try: -84 # WITH <identifier> AS <subquery expression> -85 return super()._parse_cte() -86 except ParseError: -87 # WITH <expression> AS <identifier> -88 self._retreat(index) -89 statement = self._parse_statement() -90 -91 if statement and isinstance(statement.this, exp.Alias): -92 self.raise_error("Expected CTE to have alias") -93 -94 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) +77 return this +78 +79 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: +80 return super()._parse_position(haystack_first=True) +81 +82 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ +83 def _parse_cte(self) -> exp.Expression: +84 index = self._index +85 try: +86 # WITH <identifier> AS <subquery expression> +87 return super()._parse_cte() +88 except ParseError: +89 # WITH <expression> AS <identifier> +90 self._retreat(index) +91 statement = self._parse_statement() +92 +93 if statement and isinstance(statement.this, exp.Alias): +94 self.raise_error("Expected CTE to have alias") +95 +96 return self.expression(exp.CTE, this=statement, alias=statement and statement.this)
@@ -543,50 +551,51 @@ Default: "nulls_are_small"
-
 96    class Generator(generator.Generator):
- 97        STRUCT_DELIMITER = ("(", ")")
- 98
- 99        TYPE_MAPPING = {
-100            **generator.Generator.TYPE_MAPPING,  # type: ignore
-101            exp.DataType.Type.NULLABLE: "Nullable",
-102            exp.DataType.Type.DATETIME: "DateTime64",
-103            exp.DataType.Type.MAP: "Map",
-104            exp.DataType.Type.ARRAY: "Array",
-105            exp.DataType.Type.STRUCT: "Tuple",
-106            exp.DataType.Type.TINYINT: "Int8",
-107            exp.DataType.Type.SMALLINT: "Int16",
-108            exp.DataType.Type.INT: "Int32",
-109            exp.DataType.Type.BIGINT: "Int64",
-110            exp.DataType.Type.FLOAT: "Float32",
-111            exp.DataType.Type.DOUBLE: "Float64",
-112        }
-113
-114        TRANSFORMS = {
-115            **generator.Generator.TRANSFORMS,  # type: ignore
-116            exp.Array: inline_array_sql,
-117            exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})",
-118            exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL",
-119            exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)),
-120            exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)),
-121            exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}",
-122            exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}",
-123            exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}",
-124        }
-125
-126        EXPLICIT_UNION = True
-127
-128        def _param_args_sql(
-129            self, expression: exp.Expression, params_name: str, args_name: str
-130        ) -> str:
-131            params = self.format_args(self.expressions(expression, params_name))
-132            args = self.format_args(self.expressions(expression, args_name))
-133            return f"({params})({args})"
-134
-135        def cte_sql(self, expression: exp.CTE) -> str:
-136            if isinstance(expression.this, exp.Alias):
-137                return self.sql(expression, "this")
-138
-139            return super().cte_sql(expression)
+            
 98    class Generator(generator.Generator):
+ 99        STRUCT_DELIMITER = ("(", ")")
+100        INTEGER_DIVISION = False
+101
+102        TYPE_MAPPING = {
+103            **generator.Generator.TYPE_MAPPING,  # type: ignore
+104            exp.DataType.Type.NULLABLE: "Nullable",
+105            exp.DataType.Type.DATETIME: "DateTime64",
+106            exp.DataType.Type.MAP: "Map",
+107            exp.DataType.Type.ARRAY: "Array",
+108            exp.DataType.Type.STRUCT: "Tuple",
+109            exp.DataType.Type.TINYINT: "Int8",
+110            exp.DataType.Type.SMALLINT: "Int16",
+111            exp.DataType.Type.INT: "Int32",
+112            exp.DataType.Type.BIGINT: "Int64",
+113            exp.DataType.Type.FLOAT: "Float32",
+114            exp.DataType.Type.DOUBLE: "Float64",
+115        }
+116
+117        TRANSFORMS = {
+118            **generator.Generator.TRANSFORMS,  # type: ignore
+119            exp.Array: inline_array_sql,
+120            exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})",
+121            exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL",
+122            exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)),
+123            exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)),
+124            exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}",
+125            exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}",
+126            exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}",
+127        }
+128
+129        EXPLICIT_UNION = True
+130
+131        def _param_args_sql(
+132            self, expression: exp.Expression, params_name: str, args_name: str
+133        ) -> str:
+134            params = self.format_args(self.expressions(expression, params_name))
+135            args = self.format_args(self.expressions(expression, args_name))
+136            return f"({params})({args})"
+137
+138        def cte_sql(self, expression: exp.CTE) -> str:
+139            if isinstance(expression.this, exp.Alias):
+140                return self.sql(expression, "this")
+141
+142            return super().cte_sql(expression)
 
@@ -646,11 +655,11 @@ Default: True
-
135        def cte_sql(self, expression: exp.CTE) -> str:
-136            if isinstance(expression.this, exp.Alias):
-137                return self.sql(expression, "this")
-138
-139            return super().cte_sql(expression)
+            
138        def cte_sql(self, expression: exp.CTE) -> str:
+139            if isinstance(expression.this, exp.Alias):
+140                return self.sql(expression, "this")
+141
+142            return super().cte_sql(expression)
 
@@ -728,6 +737,7 @@ Default: True
intersect_op
introducer_sql
pseudotype_sql
+
returning_sql
rowformatdelimitedproperty_sql
table_sql
tablesample_sql
@@ -829,6 +839,7 @@ Default: True
intdiv_sql
dpipe_sql
div_sql
+
floatdiv_sql
overlaps_sql
distance_sql
dot_sql
diff --git a/docs/sqlglot/dialects/databricks.html b/docs/sqlglot/dialects/databricks.html index 224ee6e..b22aa76 100644 --- a/docs/sqlglot/dialects/databricks.html +++ b/docs/sqlglot/dialects/databricks.html @@ -369,6 +369,7 @@ Default: True
intersect_op
introducer_sql
pseudotype_sql
+
returning_sql
rowformatdelimitedproperty_sql
table_sql
tablesample_sql
@@ -469,6 +470,7 @@ Default: True
intdiv_sql
dpipe_sql
div_sql
+
floatdiv_sql
overlaps_sql
distance_sql
dot_sql
diff --git a/docs/sqlglot/dialects/dialect.html b/docs/sqlglot/dialects/dialect.html index 6aa48ad..5a9a0ce 100644 --- a/docs/sqlglot/dialects/dialect.html +++ b/docs/sqlglot/dialects/dialect.html @@ -198,6 +198,9 @@
  • datestrtodate_sql
  • +
  • + min_or_least +
  • trim_sql
  • @@ -639,36 +642,41 @@
    407 return f"CAST({self.sql(expression, 'this')} AS DATE)" 408 409 -410def trim_sql(self: Generator, expression: exp.Trim) -> str: -411 target = self.sql(expression, "this") -412 trim_type = self.sql(expression, "position") -413 remove_chars = self.sql(expression, "expression") -414 collation = self.sql(expression, "collation") -415 -416 # Use TRIM/LTRIM/RTRIM syntax if the expression isn't database-specific -417 if not remove_chars and not collation: -418 return self.trim_sql(expression) -419 -420 trim_type = f"{trim_type} " if trim_type else "" -421 remove_chars = f"{remove_chars} " if remove_chars else "" -422 from_part = "FROM " if trim_type or remove_chars else "" -423 collation = f" COLLATE {collation}" if collation else "" -424 return f"TRIM({trim_type}{remove_chars}{from_part}{target}{collation})" -425 -426 -427def str_to_time_sql(self, expression: exp.Expression) -> str: -428 return self.func("STRPTIME", expression.this, self.format_time(expression)) -429 +410def min_or_least(self: Generator, expression: exp.Min) -> str: +411 name = "LEAST" if expression.expressions else "MIN" +412 return rename_func(name)(self, expression) +413 +414 +415def trim_sql(self: Generator, expression: exp.Trim) -> str: +416 target = self.sql(expression, "this") +417 trim_type = self.sql(expression, "position") +418 remove_chars = self.sql(expression, "expression") +419 collation = self.sql(expression, "collation") +420 +421 # Use TRIM/LTRIM/RTRIM syntax if the expression isn't database-specific +422 if not remove_chars and not collation: +423 return self.trim_sql(expression) +424 +425 trim_type = f"{trim_type} " if trim_type else "" +426 remove_chars = f"{remove_chars} " if remove_chars else "" +427 from_part = "FROM " if trim_type or remove_chars else "" +428 collation = f" COLLATE {collation}" if collation else "" +429 return f"TRIM({trim_type}{remove_chars}{from_part}{target}{collation})" 430 -431def ts_or_ds_to_date_sql(dialect: str) -> t.Callable: -432 def _ts_or_ds_to_date_sql(self: Generator, expression: exp.TsOrDsToDate) -> str: -433 _dialect = Dialect.get_or_raise(dialect) -434 time_format = self.format_time(expression) -435 if time_format and time_format not in (_dialect.time_format, _dialect.date_format): -436 return f"CAST({str_to_time_sql(self, expression)} AS DATE)" -437 return f"CAST({self.sql(expression, 'this')} AS DATE)" -438 -439 return _ts_or_ds_to_date_sql +431 +432def str_to_time_sql(self, expression: exp.Expression) -> str: +433 return self.func("STRPTIME", expression.this, self.format_time(expression)) +434 +435 +436def ts_or_ds_to_date_sql(dialect: str) -> t.Callable: +437 def _ts_or_ds_to_date_sql(self: Generator, expression: exp.TsOrDsToDate) -> str: +438 _dialect = Dialect.get_or_raise(dialect) +439 time_format = self.format_time(expression) +440 if time_format and time_format not in (_dialect.time_format, _dialect.date_format): +441 return f"CAST({str_to_time_sql(self, expression)} AS DATE)" +442 return f"CAST({self.sql(expression, 'this')} AS DATE)" +443 +444 return _ts_or_ds_to_date_sql
    @@ -1927,6 +1935,26 @@ columns are removed from the create statement.

    + +
    + +
    + + def + min_or_least( self: sqlglot.generator.Generator, expression: sqlglot.expressions.Min) -> str: + + + +
    + +
    411def min_or_least(self: Generator, expression: exp.Min) -> str:
    +412    name = "LEAST" if expression.expressions else "MIN"
    +413    return rename_func(name)(self, expression)
    +
    + + + +
    @@ -1939,21 +1967,21 @@ columns are removed from the create statement.

    -
    411def trim_sql(self: Generator, expression: exp.Trim) -> str:
    -412    target = self.sql(expression, "this")
    -413    trim_type = self.sql(expression, "position")
    -414    remove_chars = self.sql(expression, "expression")
    -415    collation = self.sql(expression, "collation")
    -416
    -417    # Use TRIM/LTRIM/RTRIM syntax if the expression isn't database-specific
    -418    if not remove_chars and not collation:
    -419        return self.trim_sql(expression)
    -420
    -421    trim_type = f"{trim_type} " if trim_type else ""
    -422    remove_chars = f"{remove_chars} " if remove_chars else ""
    -423    from_part = "FROM " if trim_type or remove_chars else ""
    -424    collation = f" COLLATE {collation}" if collation else ""
    -425    return f"TRIM({trim_type}{remove_chars}{from_part}{target}{collation})"
    +            
    416def trim_sql(self: Generator, expression: exp.Trim) -> str:
    +417    target = self.sql(expression, "this")
    +418    trim_type = self.sql(expression, "position")
    +419    remove_chars = self.sql(expression, "expression")
    +420    collation = self.sql(expression, "collation")
    +421
    +422    # Use TRIM/LTRIM/RTRIM syntax if the expression isn't database-specific
    +423    if not remove_chars and not collation:
    +424        return self.trim_sql(expression)
    +425
    +426    trim_type = f"{trim_type} " if trim_type else ""
    +427    remove_chars = f"{remove_chars} " if remove_chars else ""
    +428    from_part = "FROM " if trim_type or remove_chars else ""
    +429    collation = f" COLLATE {collation}" if collation else ""
    +430    return f"TRIM({trim_type}{remove_chars}{from_part}{target}{collation})"
     
    @@ -1971,8 +1999,8 @@ columns are removed from the create statement.

    -
    428def str_to_time_sql(self, expression: exp.Expression) -> str:
    -429    return self.func("STRPTIME", expression.this, self.format_time(expression))
    +            
    433def str_to_time_sql(self, expression: exp.Expression) -> str:
    +434    return self.func("STRPTIME", expression.this, self.format_time(expression))
     
    @@ -1990,15 +2018,15 @@ columns are removed from the create statement.

    -
    432def ts_or_ds_to_date_sql(dialect: str) -> t.Callable:
    -433    def _ts_or_ds_to_date_sql(self: Generator, expression: exp.TsOrDsToDate) -> str:
    -434        _dialect = Dialect.get_or_raise(dialect)
    -435        time_format = self.format_time(expression)
    -436        if time_format and time_format not in (_dialect.time_format, _dialect.date_format):
    -437            return f"CAST({str_to_time_sql(self, expression)} AS DATE)"
    -438        return f"CAST({self.sql(expression, 'this')} AS DATE)"
    -439
    -440    return _ts_or_ds_to_date_sql
    +            
    437def ts_or_ds_to_date_sql(dialect: str) -> t.Callable:
    +438    def _ts_or_ds_to_date_sql(self: Generator, expression: exp.TsOrDsToDate) -> str:
    +439        _dialect = Dialect.get_or_raise(dialect)
    +440        time_format = self.format_time(expression)
    +441        if time_format and time_format not in (_dialect.time_format, _dialect.date_format):
    +442            return f"CAST({str_to_time_sql(self, expression)} AS DATE)"
    +443        return f"CAST({self.sql(expression, 'this')} AS DATE)"
    +444
    +445    return _ts_or_ds_to_date_sql
     
    diff --git a/docs/sqlglot/dialects/drill.html b/docs/sqlglot/dialects/drill.html index c97461c..375c89d 100644 --- a/docs/sqlglot/dialects/drill.html +++ b/docs/sqlglot/dialects/drill.html @@ -676,6 +676,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -777,6 +778,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/duckdb.html b/docs/sqlglot/dialects/duckdb.html index b7d906f..ed0bee0 100644 --- a/docs/sqlglot/dialects/duckdb.html +++ b/docs/sqlglot/dialects/duckdb.html @@ -48,6 +48,9 @@
  • DuckDB.Generator
  • @@ -90,174 +93,175 @@
    11 no_pivot_sql, 12 no_properties_sql, 13 no_safe_divide_sql, - 14 no_tablesample_sql, - 15 rename_func, - 16 str_position_sql, - 17 str_to_time_sql, - 18 timestrtotime_sql, - 19 ts_or_ds_to_date_sql, - 20) - 21from sqlglot.helper import seq_get - 22from sqlglot.tokens import TokenType + 14 rename_func, + 15 str_position_sql, + 16 str_to_time_sql, + 17 timestrtotime_sql, + 18 ts_or_ds_to_date_sql, + 19) + 20from sqlglot.helper import seq_get + 21from sqlglot.tokens import TokenType + 22 23 - 24 - 25def _ts_or_ds_add(self, expression): - 26 this = expression.args.get("this") - 27 unit = self.sql(expression, "unit").strip("'") or "DAY" - 28 return f"CAST({this} AS DATE) + {self.sql(exp.Interval(this=expression.expression, unit=unit))}" + 24def _ts_or_ds_add(self, expression): + 25 this = expression.args.get("this") + 26 unit = self.sql(expression, "unit").strip("'") or "DAY" + 27 return f"CAST({this} AS DATE) + {self.sql(exp.Interval(this=expression.expression, unit=unit))}" + 28 29 - 30 - 31def _date_add(self, expression): - 32 this = self.sql(expression, "this") - 33 unit = self.sql(expression, "unit").strip("'") or "DAY" - 34 return f"{this} + {self.sql(exp.Interval(this=expression.expression, unit=unit))}" + 30def _date_add(self, expression): + 31 this = self.sql(expression, "this") + 32 unit = self.sql(expression, "unit").strip("'") or "DAY" + 33 return f"{this} + {self.sql(exp.Interval(this=expression.expression, unit=unit))}" + 34 35 - 36 - 37def _array_sort_sql(self, expression): - 38 if expression.expression: - 39 self.unsupported("DUCKDB ARRAY_SORT does not support a comparator") - 40 return f"ARRAY_SORT({self.sql(expression, 'this')})" + 36def _array_sort_sql(self, expression): + 37 if expression.expression: + 38 self.unsupported("DUCKDB ARRAY_SORT does not support a comparator") + 39 return f"ARRAY_SORT({self.sql(expression, 'this')})" + 40 41 - 42 - 43def _sort_array_sql(self, expression): - 44 this = self.sql(expression, "this") - 45 if expression.args.get("asc") == exp.false(): - 46 return f"ARRAY_REVERSE_SORT({this})" - 47 return f"ARRAY_SORT({this})" + 42def _sort_array_sql(self, expression): + 43 this = self.sql(expression, "this") + 44 if expression.args.get("asc") == exp.false(): + 45 return f"ARRAY_REVERSE_SORT({this})" + 46 return f"ARRAY_SORT({this})" + 47 48 - 49 - 50def _sort_array_reverse(args): - 51 return exp.SortArray(this=seq_get(args, 0), asc=exp.false()) + 49def _sort_array_reverse(args): + 50 return exp.SortArray(this=seq_get(args, 0), asc=exp.false()) + 51 52 - 53 - 54def _struct_sql(self, expression): - 55 args = [ - 56 f"'{e.name or e.this.name}': {self.sql(e, 'expression')}" for e in expression.expressions - 57 ] - 58 return f"{{{', '.join(args)}}}" + 53def _struct_sql(self, expression): + 54 args = [ + 55 f"'{e.name or e.this.name}': {self.sql(e, 'expression')}" for e in expression.expressions + 56 ] + 57 return f"{{{', '.join(args)}}}" + 58 59 - 60 - 61def _datatype_sql(self, expression): - 62 if expression.this == exp.DataType.Type.ARRAY: - 63 return f"{self.expressions(expression, flat=True)}[]" - 64 return self.datatype_sql(expression) + 60def _datatype_sql(self, expression): + 61 if expression.this == exp.DataType.Type.ARRAY: + 62 return f"{self.expressions(expression, flat=True)}[]" + 63 return self.datatype_sql(expression) + 64 65 - 66 - 67def _regexp_extract_sql(self, expression): - 68 bad_args = list(filter(expression.args.get, ("position", "occurrence"))) - 69 if bad_args: - 70 self.unsupported(f"REGEXP_EXTRACT does not support arg(s) {bad_args}") - 71 return self.func( - 72 "REGEXP_EXTRACT", - 73 expression.args.get("this"), - 74 expression.args.get("expression"), - 75 expression.args.get("group"), - 76 ) + 66def _regexp_extract_sql(self, expression): + 67 bad_args = list(filter(expression.args.get, ("position", "occurrence"))) + 68 if bad_args: + 69 self.unsupported(f"REGEXP_EXTRACT does not support arg(s) {bad_args}") + 70 return self.func( + 71 "REGEXP_EXTRACT", + 72 expression.args.get("this"), + 73 expression.args.get("expression"), + 74 expression.args.get("group"), + 75 ) + 76 77 - 78 - 79class DuckDB(Dialect): - 80 class Tokenizer(tokens.Tokenizer): - 81 KEYWORDS = { - 82 **tokens.Tokenizer.KEYWORDS, - 83 ":=": TokenType.EQ, - 84 "ATTACH": TokenType.COMMAND, - 85 "CHARACTER VARYING": TokenType.VARCHAR, - 86 "EXCLUDE": TokenType.EXCEPT, - 87 } - 88 - 89 class Parser(parser.Parser): - 90 FUNCTIONS = { - 91 **parser.Parser.FUNCTIONS, # type: ignore - 92 "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list, - 93 "ARRAY_LENGTH": exp.ArraySize.from_arg_list, - 94 "ARRAY_SORT": exp.SortArray.from_arg_list, - 95 "ARRAY_REVERSE_SORT": _sort_array_reverse, - 96 "EPOCH": exp.TimeToUnix.from_arg_list, - 97 "EPOCH_MS": lambda args: exp.UnixToTime( - 98 this=exp.Div( - 99 this=seq_get(args, 0), -100 expression=exp.Literal.number(1000), -101 ) -102 ), -103 "LIST_SORT": exp.SortArray.from_arg_list, -104 "LIST_REVERSE_SORT": _sort_array_reverse, -105 "LIST_VALUE": exp.Array.from_arg_list, -106 "REGEXP_MATCHES": exp.RegexpLike.from_arg_list, -107 "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"), -108 "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"), -109 "STR_SPLIT": exp.Split.from_arg_list, -110 "STRING_SPLIT": exp.Split.from_arg_list, -111 "STRING_TO_ARRAY": exp.Split.from_arg_list, -112 "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, -113 "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, -114 "STRUCT_PACK": exp.Struct.from_arg_list, -115 "TO_TIMESTAMP": exp.UnixToTime.from_arg_list, -116 "UNNEST": exp.Explode.from_arg_list, -117 } -118 -119 class Generator(generator.Generator): -120 STRUCT_DELIMITER = ("(", ")") -121 -122 TRANSFORMS = { -123 **generator.Generator.TRANSFORMS, # type: ignore -124 exp.ApproxDistinct: approx_count_distinct_sql, -125 exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0]) -126 if isinstance(seq_get(e.expressions, 0), exp.Select) -127 else rename_func("LIST_VALUE")(self, e), -128 exp.ArraySize: rename_func("ARRAY_LENGTH"), -129 exp.ArraySort: _array_sort_sql, -130 exp.ArraySum: rename_func("LIST_SUM"), -131 exp.DataType: _datatype_sql, -132 exp.DateAdd: _date_add, -133 exp.DateDiff: lambda self, e: self.func( -134 "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this -135 ), -136 exp.DateStrToDate: datestrtodate_sql, -137 exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)", -138 exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)", -139 exp.Explode: rename_func("UNNEST"), -140 exp.JSONExtract: arrow_json_extract_sql, -141 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, -142 exp.JSONBExtract: arrow_json_extract_sql, -143 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, -144 exp.LogicalOr: rename_func("BOOL_OR"), -145 exp.Pivot: no_pivot_sql, -146 exp.Properties: no_properties_sql, -147 exp.RegexpExtract: _regexp_extract_sql, -148 exp.RegexpLike: rename_func("REGEXP_MATCHES"), -149 exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"), -150 exp.SafeDivide: no_safe_divide_sql, -151 exp.Split: rename_func("STR_SPLIT"), -152 exp.SortArray: _sort_array_sql, -153 exp.StrPosition: str_position_sql, -154 exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)", -155 exp.StrToTime: str_to_time_sql, -156 exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))", -157 exp.Struct: _struct_sql, -158 exp.TableSample: no_tablesample_sql, -159 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", -160 exp.TimeStrToTime: timestrtotime_sql, -161 exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))", -162 exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})", -163 exp.TimeToUnix: rename_func("EPOCH"), -164 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)", -165 exp.TsOrDsAdd: _ts_or_ds_add, -166 exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"), -167 exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})", -168 exp.UnixToTime: rename_func("TO_TIMESTAMP"), -169 exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)", -170 } -171 -172 TYPE_MAPPING = { -173 **generator.Generator.TYPE_MAPPING, # type: ignore -174 exp.DataType.Type.VARCHAR: "TEXT", -175 exp.DataType.Type.NVARCHAR: "TEXT", -176 } -177 -178 STAR_MAPPING = { -179 **generator.Generator.STAR_MAPPING, -180 "except": "EXCLUDE", -181 } + 78class DuckDB(Dialect): + 79 class Tokenizer(tokens.Tokenizer): + 80 KEYWORDS = { + 81 **tokens.Tokenizer.KEYWORDS, + 82 ":=": TokenType.EQ, + 83 "ATTACH": TokenType.COMMAND, + 84 "CHARACTER VARYING": TokenType.VARCHAR, + 85 "EXCLUDE": TokenType.EXCEPT, + 86 } + 87 + 88 class Parser(parser.Parser): + 89 FUNCTIONS = { + 90 **parser.Parser.FUNCTIONS, # type: ignore + 91 "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list, + 92 "ARRAY_LENGTH": exp.ArraySize.from_arg_list, + 93 "ARRAY_SORT": exp.SortArray.from_arg_list, + 94 "ARRAY_REVERSE_SORT": _sort_array_reverse, + 95 "EPOCH": exp.TimeToUnix.from_arg_list, + 96 "EPOCH_MS": lambda args: exp.UnixToTime( + 97 this=exp.Div( + 98 this=seq_get(args, 0), + 99 expression=exp.Literal.number(1000), +100 ) +101 ), +102 "LIST_SORT": exp.SortArray.from_arg_list, +103 "LIST_REVERSE_SORT": _sort_array_reverse, +104 "LIST_VALUE": exp.Array.from_arg_list, +105 "REGEXP_MATCHES": exp.RegexpLike.from_arg_list, +106 "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"), +107 "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"), +108 "STR_SPLIT": exp.Split.from_arg_list, +109 "STRING_SPLIT": exp.Split.from_arg_list, +110 "STRING_TO_ARRAY": exp.Split.from_arg_list, +111 "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, +112 "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, +113 "STRUCT_PACK": exp.Struct.from_arg_list, +114 "TO_TIMESTAMP": exp.UnixToTime.from_arg_list, +115 "UNNEST": exp.Explode.from_arg_list, +116 } +117 +118 class Generator(generator.Generator): +119 STRUCT_DELIMITER = ("(", ")") +120 +121 TRANSFORMS = { +122 **generator.Generator.TRANSFORMS, # type: ignore +123 exp.ApproxDistinct: approx_count_distinct_sql, +124 exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0]) +125 if isinstance(seq_get(e.expressions, 0), exp.Select) +126 else rename_func("LIST_VALUE")(self, e), +127 exp.ArraySize: rename_func("ARRAY_LENGTH"), +128 exp.ArraySort: _array_sort_sql, +129 exp.ArraySum: rename_func("LIST_SUM"), +130 exp.DataType: _datatype_sql, +131 exp.DateAdd: _date_add, +132 exp.DateDiff: lambda self, e: self.func( +133 "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this +134 ), +135 exp.DateStrToDate: datestrtodate_sql, +136 exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)", +137 exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)", +138 exp.Explode: rename_func("UNNEST"), +139 exp.JSONExtract: arrow_json_extract_sql, +140 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, +141 exp.JSONBExtract: arrow_json_extract_sql, +142 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, +143 exp.LogicalOr: rename_func("BOOL_OR"), +144 exp.Pivot: no_pivot_sql, +145 exp.Properties: no_properties_sql, +146 exp.RegexpExtract: _regexp_extract_sql, +147 exp.RegexpLike: rename_func("REGEXP_MATCHES"), +148 exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"), +149 exp.SafeDivide: no_safe_divide_sql, +150 exp.Split: rename_func("STR_SPLIT"), +151 exp.SortArray: _sort_array_sql, +152 exp.StrPosition: str_position_sql, +153 exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)", +154 exp.StrToTime: str_to_time_sql, +155 exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))", +156 exp.Struct: _struct_sql, +157 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", +158 exp.TimeStrToTime: timestrtotime_sql, +159 exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))", +160 exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})", +161 exp.TimeToUnix: rename_func("EPOCH"), +162 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)", +163 exp.TsOrDsAdd: _ts_or_ds_add, +164 exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"), +165 exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})", +166 exp.UnixToTime: rename_func("TO_TIMESTAMP"), +167 exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)", +168 } +169 +170 TYPE_MAPPING = { +171 **generator.Generator.TYPE_MAPPING, # type: ignore +172 exp.DataType.Type.VARCHAR: "TEXT", +173 exp.DataType.Type.NVARCHAR: "TEXT", +174 } +175 +176 STAR_MAPPING = { +177 **generator.Generator.STAR_MAPPING, +178 "except": "EXCLUDE", +179 } +180 +181 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: +182 return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
    @@ -273,109 +277,111 @@
    -
     80class DuckDB(Dialect):
    - 81    class Tokenizer(tokens.Tokenizer):
    - 82        KEYWORDS = {
    - 83            **tokens.Tokenizer.KEYWORDS,
    - 84            ":=": TokenType.EQ,
    - 85            "ATTACH": TokenType.COMMAND,
    - 86            "CHARACTER VARYING": TokenType.VARCHAR,
    - 87            "EXCLUDE": TokenType.EXCEPT,
    - 88        }
    - 89
    - 90    class Parser(parser.Parser):
    - 91        FUNCTIONS = {
    - 92            **parser.Parser.FUNCTIONS,  # type: ignore
    - 93            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    - 94            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
    - 95            "ARRAY_SORT": exp.SortArray.from_arg_list,
    - 96            "ARRAY_REVERSE_SORT": _sort_array_reverse,
    - 97            "EPOCH": exp.TimeToUnix.from_arg_list,
    - 98            "EPOCH_MS": lambda args: exp.UnixToTime(
    - 99                this=exp.Div(
    -100                    this=seq_get(args, 0),
    -101                    expression=exp.Literal.number(1000),
    -102                )
    -103            ),
    -104            "LIST_SORT": exp.SortArray.from_arg_list,
    -105            "LIST_REVERSE_SORT": _sort_array_reverse,
    -106            "LIST_VALUE": exp.Array.from_arg_list,
    -107            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
    -108            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
    -109            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
    -110            "STR_SPLIT": exp.Split.from_arg_list,
    -111            "STRING_SPLIT": exp.Split.from_arg_list,
    -112            "STRING_TO_ARRAY": exp.Split.from_arg_list,
    -113            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    -114            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    -115            "STRUCT_PACK": exp.Struct.from_arg_list,
    -116            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
    -117            "UNNEST": exp.Explode.from_arg_list,
    -118        }
    -119
    -120    class Generator(generator.Generator):
    -121        STRUCT_DELIMITER = ("(", ")")
    -122
    -123        TRANSFORMS = {
    -124            **generator.Generator.TRANSFORMS,  # type: ignore
    -125            exp.ApproxDistinct: approx_count_distinct_sql,
    -126            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
    -127            if isinstance(seq_get(e.expressions, 0), exp.Select)
    -128            else rename_func("LIST_VALUE")(self, e),
    -129            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    -130            exp.ArraySort: _array_sort_sql,
    -131            exp.ArraySum: rename_func("LIST_SUM"),
    -132            exp.DataType: _datatype_sql,
    -133            exp.DateAdd: _date_add,
    -134            exp.DateDiff: lambda self, e: self.func(
    -135                "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this
    -136            ),
    -137            exp.DateStrToDate: datestrtodate_sql,
    -138            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
    -139            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
    -140            exp.Explode: rename_func("UNNEST"),
    -141            exp.JSONExtract: arrow_json_extract_sql,
    -142            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    -143            exp.JSONBExtract: arrow_json_extract_sql,
    -144            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    -145            exp.LogicalOr: rename_func("BOOL_OR"),
    -146            exp.Pivot: no_pivot_sql,
    -147            exp.Properties: no_properties_sql,
    -148            exp.RegexpExtract: _regexp_extract_sql,
    -149            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
    -150            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
    -151            exp.SafeDivide: no_safe_divide_sql,
    -152            exp.Split: rename_func("STR_SPLIT"),
    -153            exp.SortArray: _sort_array_sql,
    -154            exp.StrPosition: str_position_sql,
    -155            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
    -156            exp.StrToTime: str_to_time_sql,
    -157            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
    -158            exp.Struct: _struct_sql,
    -159            exp.TableSample: no_tablesample_sql,
    -160            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
    -161            exp.TimeStrToTime: timestrtotime_sql,
    -162            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
    -163            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
    -164            exp.TimeToUnix: rename_func("EPOCH"),
    -165            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
    -166            exp.TsOrDsAdd: _ts_or_ds_add,
    -167            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
    -168            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
    -169            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
    -170            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
    -171        }
    -172
    -173        TYPE_MAPPING = {
    -174            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -175            exp.DataType.Type.VARCHAR: "TEXT",
    -176            exp.DataType.Type.NVARCHAR: "TEXT",
    -177        }
    -178
    -179        STAR_MAPPING = {
    -180            **generator.Generator.STAR_MAPPING,
    -181            "except": "EXCLUDE",
    -182        }
    +            
     79class DuckDB(Dialect):
    + 80    class Tokenizer(tokens.Tokenizer):
    + 81        KEYWORDS = {
    + 82            **tokens.Tokenizer.KEYWORDS,
    + 83            ":=": TokenType.EQ,
    + 84            "ATTACH": TokenType.COMMAND,
    + 85            "CHARACTER VARYING": TokenType.VARCHAR,
    + 86            "EXCLUDE": TokenType.EXCEPT,
    + 87        }
    + 88
    + 89    class Parser(parser.Parser):
    + 90        FUNCTIONS = {
    + 91            **parser.Parser.FUNCTIONS,  # type: ignore
    + 92            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    + 93            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
    + 94            "ARRAY_SORT": exp.SortArray.from_arg_list,
    + 95            "ARRAY_REVERSE_SORT": _sort_array_reverse,
    + 96            "EPOCH": exp.TimeToUnix.from_arg_list,
    + 97            "EPOCH_MS": lambda args: exp.UnixToTime(
    + 98                this=exp.Div(
    + 99                    this=seq_get(args, 0),
    +100                    expression=exp.Literal.number(1000),
    +101                )
    +102            ),
    +103            "LIST_SORT": exp.SortArray.from_arg_list,
    +104            "LIST_REVERSE_SORT": _sort_array_reverse,
    +105            "LIST_VALUE": exp.Array.from_arg_list,
    +106            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
    +107            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
    +108            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
    +109            "STR_SPLIT": exp.Split.from_arg_list,
    +110            "STRING_SPLIT": exp.Split.from_arg_list,
    +111            "STRING_TO_ARRAY": exp.Split.from_arg_list,
    +112            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    +113            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    +114            "STRUCT_PACK": exp.Struct.from_arg_list,
    +115            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
    +116            "UNNEST": exp.Explode.from_arg_list,
    +117        }
    +118
    +119    class Generator(generator.Generator):
    +120        STRUCT_DELIMITER = ("(", ")")
    +121
    +122        TRANSFORMS = {
    +123            **generator.Generator.TRANSFORMS,  # type: ignore
    +124            exp.ApproxDistinct: approx_count_distinct_sql,
    +125            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
    +126            if isinstance(seq_get(e.expressions, 0), exp.Select)
    +127            else rename_func("LIST_VALUE")(self, e),
    +128            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    +129            exp.ArraySort: _array_sort_sql,
    +130            exp.ArraySum: rename_func("LIST_SUM"),
    +131            exp.DataType: _datatype_sql,
    +132            exp.DateAdd: _date_add,
    +133            exp.DateDiff: lambda self, e: self.func(
    +134                "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this
    +135            ),
    +136            exp.DateStrToDate: datestrtodate_sql,
    +137            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
    +138            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
    +139            exp.Explode: rename_func("UNNEST"),
    +140            exp.JSONExtract: arrow_json_extract_sql,
    +141            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    +142            exp.JSONBExtract: arrow_json_extract_sql,
    +143            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    +144            exp.LogicalOr: rename_func("BOOL_OR"),
    +145            exp.Pivot: no_pivot_sql,
    +146            exp.Properties: no_properties_sql,
    +147            exp.RegexpExtract: _regexp_extract_sql,
    +148            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
    +149            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
    +150            exp.SafeDivide: no_safe_divide_sql,
    +151            exp.Split: rename_func("STR_SPLIT"),
    +152            exp.SortArray: _sort_array_sql,
    +153            exp.StrPosition: str_position_sql,
    +154            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
    +155            exp.StrToTime: str_to_time_sql,
    +156            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
    +157            exp.Struct: _struct_sql,
    +158            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
    +159            exp.TimeStrToTime: timestrtotime_sql,
    +160            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
    +161            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
    +162            exp.TimeToUnix: rename_func("EPOCH"),
    +163            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
    +164            exp.TsOrDsAdd: _ts_or_ds_add,
    +165            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
    +166            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
    +167            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
    +168            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
    +169        }
    +170
    +171        TYPE_MAPPING = {
    +172            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +173            exp.DataType.Type.VARCHAR: "TEXT",
    +174            exp.DataType.Type.NVARCHAR: "TEXT",
    +175        }
    +176
    +177        STAR_MAPPING = {
    +178            **generator.Generator.STAR_MAPPING,
    +179            "except": "EXCLUDE",
    +180        }
    +181
    +182        def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    +183            return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
     
    @@ -409,14 +415,14 @@
    -
    81    class Tokenizer(tokens.Tokenizer):
    -82        KEYWORDS = {
    -83            **tokens.Tokenizer.KEYWORDS,
    -84            ":=": TokenType.EQ,
    -85            "ATTACH": TokenType.COMMAND,
    -86            "CHARACTER VARYING": TokenType.VARCHAR,
    -87            "EXCLUDE": TokenType.EXCEPT,
    -88        }
    +            
    80    class Tokenizer(tokens.Tokenizer):
    +81        KEYWORDS = {
    +82            **tokens.Tokenizer.KEYWORDS,
    +83            ":=": TokenType.EQ,
    +84            "ATTACH": TokenType.COMMAND,
    +85            "CHARACTER VARYING": TokenType.VARCHAR,
    +86            "EXCLUDE": TokenType.EXCEPT,
    +87        }
     
    @@ -444,35 +450,35 @@
    -
     90    class Parser(parser.Parser):
    - 91        FUNCTIONS = {
    - 92            **parser.Parser.FUNCTIONS,  # type: ignore
    - 93            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    - 94            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
    - 95            "ARRAY_SORT": exp.SortArray.from_arg_list,
    - 96            "ARRAY_REVERSE_SORT": _sort_array_reverse,
    - 97            "EPOCH": exp.TimeToUnix.from_arg_list,
    - 98            "EPOCH_MS": lambda args: exp.UnixToTime(
    - 99                this=exp.Div(
    -100                    this=seq_get(args, 0),
    -101                    expression=exp.Literal.number(1000),
    -102                )
    -103            ),
    -104            "LIST_SORT": exp.SortArray.from_arg_list,
    -105            "LIST_REVERSE_SORT": _sort_array_reverse,
    -106            "LIST_VALUE": exp.Array.from_arg_list,
    -107            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
    -108            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
    -109            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
    -110            "STR_SPLIT": exp.Split.from_arg_list,
    -111            "STRING_SPLIT": exp.Split.from_arg_list,
    -112            "STRING_TO_ARRAY": exp.Split.from_arg_list,
    -113            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    -114            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    -115            "STRUCT_PACK": exp.Struct.from_arg_list,
    -116            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
    -117            "UNNEST": exp.Explode.from_arg_list,
    -118        }
    +            
     89    class Parser(parser.Parser):
    + 90        FUNCTIONS = {
    + 91            **parser.Parser.FUNCTIONS,  # type: ignore
    + 92            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    + 93            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
    + 94            "ARRAY_SORT": exp.SortArray.from_arg_list,
    + 95            "ARRAY_REVERSE_SORT": _sort_array_reverse,
    + 96            "EPOCH": exp.TimeToUnix.from_arg_list,
    + 97            "EPOCH_MS": lambda args: exp.UnixToTime(
    + 98                this=exp.Div(
    + 99                    this=seq_get(args, 0),
    +100                    expression=exp.Literal.number(1000),
    +101                )
    +102            ),
    +103            "LIST_SORT": exp.SortArray.from_arg_list,
    +104            "LIST_REVERSE_SORT": _sort_array_reverse,
    +105            "LIST_VALUE": exp.Array.from_arg_list,
    +106            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
    +107            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
    +108            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
    +109            "STR_SPLIT": exp.Split.from_arg_list,
    +110            "STRING_SPLIT": exp.Split.from_arg_list,
    +111            "STRING_TO_ARRAY": exp.Split.from_arg_list,
    +112            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    +113            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    +114            "STRUCT_PACK": exp.Struct.from_arg_list,
    +115            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
    +116            "UNNEST": exp.Explode.from_arg_list,
    +117        }
     
    @@ -529,69 +535,71 @@ Default: "nulls_are_small"
    -
    120    class Generator(generator.Generator):
    -121        STRUCT_DELIMITER = ("(", ")")
    -122
    -123        TRANSFORMS = {
    -124            **generator.Generator.TRANSFORMS,  # type: ignore
    -125            exp.ApproxDistinct: approx_count_distinct_sql,
    -126            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
    -127            if isinstance(seq_get(e.expressions, 0), exp.Select)
    -128            else rename_func("LIST_VALUE")(self, e),
    -129            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    -130            exp.ArraySort: _array_sort_sql,
    -131            exp.ArraySum: rename_func("LIST_SUM"),
    -132            exp.DataType: _datatype_sql,
    -133            exp.DateAdd: _date_add,
    -134            exp.DateDiff: lambda self, e: self.func(
    -135                "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this
    -136            ),
    -137            exp.DateStrToDate: datestrtodate_sql,
    -138            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
    -139            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
    -140            exp.Explode: rename_func("UNNEST"),
    -141            exp.JSONExtract: arrow_json_extract_sql,
    -142            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    -143            exp.JSONBExtract: arrow_json_extract_sql,
    -144            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    -145            exp.LogicalOr: rename_func("BOOL_OR"),
    -146            exp.Pivot: no_pivot_sql,
    -147            exp.Properties: no_properties_sql,
    -148            exp.RegexpExtract: _regexp_extract_sql,
    -149            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
    -150            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
    -151            exp.SafeDivide: no_safe_divide_sql,
    -152            exp.Split: rename_func("STR_SPLIT"),
    -153            exp.SortArray: _sort_array_sql,
    -154            exp.StrPosition: str_position_sql,
    -155            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
    -156            exp.StrToTime: str_to_time_sql,
    -157            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
    -158            exp.Struct: _struct_sql,
    -159            exp.TableSample: no_tablesample_sql,
    -160            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
    -161            exp.TimeStrToTime: timestrtotime_sql,
    -162            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
    -163            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
    -164            exp.TimeToUnix: rename_func("EPOCH"),
    -165            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
    -166            exp.TsOrDsAdd: _ts_or_ds_add,
    -167            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
    -168            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
    -169            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
    -170            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
    -171        }
    -172
    -173        TYPE_MAPPING = {
    -174            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -175            exp.DataType.Type.VARCHAR: "TEXT",
    -176            exp.DataType.Type.NVARCHAR: "TEXT",
    -177        }
    -178
    -179        STAR_MAPPING = {
    -180            **generator.Generator.STAR_MAPPING,
    -181            "except": "EXCLUDE",
    -182        }
    +            
    119    class Generator(generator.Generator):
    +120        STRUCT_DELIMITER = ("(", ")")
    +121
    +122        TRANSFORMS = {
    +123            **generator.Generator.TRANSFORMS,  # type: ignore
    +124            exp.ApproxDistinct: approx_count_distinct_sql,
    +125            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
    +126            if isinstance(seq_get(e.expressions, 0), exp.Select)
    +127            else rename_func("LIST_VALUE")(self, e),
    +128            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    +129            exp.ArraySort: _array_sort_sql,
    +130            exp.ArraySum: rename_func("LIST_SUM"),
    +131            exp.DataType: _datatype_sql,
    +132            exp.DateAdd: _date_add,
    +133            exp.DateDiff: lambda self, e: self.func(
    +134                "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this
    +135            ),
    +136            exp.DateStrToDate: datestrtodate_sql,
    +137            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
    +138            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
    +139            exp.Explode: rename_func("UNNEST"),
    +140            exp.JSONExtract: arrow_json_extract_sql,
    +141            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    +142            exp.JSONBExtract: arrow_json_extract_sql,
    +143            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    +144            exp.LogicalOr: rename_func("BOOL_OR"),
    +145            exp.Pivot: no_pivot_sql,
    +146            exp.Properties: no_properties_sql,
    +147            exp.RegexpExtract: _regexp_extract_sql,
    +148            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
    +149            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
    +150            exp.SafeDivide: no_safe_divide_sql,
    +151            exp.Split: rename_func("STR_SPLIT"),
    +152            exp.SortArray: _sort_array_sql,
    +153            exp.StrPosition: str_position_sql,
    +154            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
    +155            exp.StrToTime: str_to_time_sql,
    +156            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
    +157            exp.Struct: _struct_sql,
    +158            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
    +159            exp.TimeStrToTime: timestrtotime_sql,
    +160            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
    +161            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
    +162            exp.TimeToUnix: rename_func("EPOCH"),
    +163            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
    +164            exp.TsOrDsAdd: _ts_or_ds_add,
    +165            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
    +166            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
    +167            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
    +168            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
    +169        }
    +170
    +171        TYPE_MAPPING = {
    +172            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +173            exp.DataType.Type.VARCHAR: "TEXT",
    +174            exp.DataType.Type.NVARCHAR: "TEXT",
    +175        }
    +176
    +177        STAR_MAPPING = {
    +178            **generator.Generator.STAR_MAPPING,
    +179            "except": "EXCLUDE",
    +180        }
    +181
    +182        def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    +183            return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
     
    @@ -640,6 +648,25 @@ Default: True
    +
    + +
    + + def + tablesample_sql( self, expression: sqlglot.expressions.TableSample, seed_prefix: str = 'SEED') -> str: + + + +
    + +
    182        def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    +183            return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
    +
    + + + + +
    Inherited Members
    @@ -712,9 +739,9 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    -
    tablesample_sql
    pivot_sql
    tuple_sql
    update_sql
    @@ -813,6 +840,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/hive.html b/docs/sqlglot/dialects/hive.html index 4677a87..232cd84 100644 --- a/docs/sqlglot/dialects/hive.html +++ b/docs/sqlglot/dialects/hive.html @@ -93,344 +93,350 @@ 8 format_time_lambda, 9 if_sql, 10 locate_to_strposition, - 11 no_ilike_sql, - 12 no_recursive_cte_sql, - 13 no_safe_divide_sql, - 14 no_trycast_sql, - 15 rename_func, - 16 strposition_to_locate_sql, - 17 struct_extract_sql, - 18 timestrtotime_sql, - 19 var_map_sql, - 20) - 21from sqlglot.helper import seq_get - 22from sqlglot.parser import parse_var_map - 23from sqlglot.tokens import TokenType - 24 - 25# (FuncType, Multiplier) - 26DATE_DELTA_INTERVAL = { - 27 "YEAR": ("ADD_MONTHS", 12), - 28 "MONTH": ("ADD_MONTHS", 1), - 29 "QUARTER": ("ADD_MONTHS", 3), - 30 "WEEK": ("DATE_ADD", 7), - 31 "DAY": ("DATE_ADD", 1), - 32} - 33 - 34DIFF_MONTH_SWITCH = ("YEAR", "QUARTER", "MONTH") - 35 + 11 min_or_least, + 12 no_ilike_sql, + 13 no_recursive_cte_sql, + 14 no_safe_divide_sql, + 15 no_trycast_sql, + 16 rename_func, + 17 strposition_to_locate_sql, + 18 struct_extract_sql, + 19 timestrtotime_sql, + 20 var_map_sql, + 21) + 22from sqlglot.helper import seq_get + 23from sqlglot.parser import parse_var_map + 24from sqlglot.tokens import TokenType + 25 + 26# (FuncType, Multiplier) + 27DATE_DELTA_INTERVAL = { + 28 "YEAR": ("ADD_MONTHS", 12), + 29 "MONTH": ("ADD_MONTHS", 1), + 30 "QUARTER": ("ADD_MONTHS", 3), + 31 "WEEK": ("DATE_ADD", 7), + 32 "DAY": ("DATE_ADD", 1), + 33} + 34 + 35DIFF_MONTH_SWITCH = ("YEAR", "QUARTER", "MONTH") 36 - 37def _add_date_sql(self, expression): - 38 unit = expression.text("unit").upper() - 39 func, multiplier = DATE_DELTA_INTERVAL.get(unit, ("DATE_ADD", 1)) - 40 modified_increment = ( - 41 int(expression.text("expression")) * multiplier - 42 if expression.expression.is_number - 43 else expression.expression - 44 ) - 45 modified_increment = exp.Literal.number(modified_increment) - 46 return self.func(func, expression.this, modified_increment.this) - 47 + 37 + 38def _add_date_sql(self, expression): + 39 unit = expression.text("unit").upper() + 40 func, multiplier = DATE_DELTA_INTERVAL.get(unit, ("DATE_ADD", 1)) + 41 modified_increment = ( + 42 int(expression.text("expression")) * multiplier + 43 if expression.expression.is_number + 44 else expression.expression + 45 ) + 46 modified_increment = exp.Literal.number(modified_increment) + 47 return self.func(func, expression.this, modified_increment.this) 48 - 49def _date_diff_sql(self, expression): - 50 unit = expression.text("unit").upper() - 51 sql_func = "MONTHS_BETWEEN" if unit in DIFF_MONTH_SWITCH else "DATEDIFF" - 52 _, multiplier = DATE_DELTA_INTERVAL.get(unit, ("", 1)) - 53 multiplier_sql = f" / {multiplier}" if multiplier > 1 else "" - 54 diff_sql = f"{sql_func}({self.format_args(expression.this, expression.expression)})" - 55 return f"{diff_sql}{multiplier_sql}" - 56 + 49 + 50def _date_diff_sql(self, expression): + 51 unit = expression.text("unit").upper() + 52 sql_func = "MONTHS_BETWEEN" if unit in DIFF_MONTH_SWITCH else "DATEDIFF" + 53 _, multiplier = DATE_DELTA_INTERVAL.get(unit, ("", 1)) + 54 multiplier_sql = f" / {multiplier}" if multiplier > 1 else "" + 55 diff_sql = f"{sql_func}({self.format_args(expression.this, expression.expression)})" + 56 return f"{diff_sql}{multiplier_sql}" 57 - 58def _array_sort(self, expression): - 59 if expression.expression: - 60 self.unsupported("Hive SORT_ARRAY does not support a comparator") - 61 return f"SORT_ARRAY({self.sql(expression, 'this')})" - 62 + 58 + 59def _array_sort(self, expression): + 60 if expression.expression: + 61 self.unsupported("Hive SORT_ARRAY does not support a comparator") + 62 return f"SORT_ARRAY({self.sql(expression, 'this')})" 63 - 64def _property_sql(self, expression): - 65 return f"'{expression.name}'={self.sql(expression, 'value')}" - 66 + 64 + 65def _property_sql(self, expression): + 66 return f"'{expression.name}'={self.sql(expression, 'value')}" 67 - 68def _str_to_unix(self, expression): - 69 return self.func("UNIX_TIMESTAMP", expression.this, _time_format(self, expression)) - 70 + 68 + 69def _str_to_unix(self, expression): + 70 return self.func("UNIX_TIMESTAMP", expression.this, _time_format(self, expression)) 71 - 72def _str_to_date(self, expression): - 73 this = self.sql(expression, "this") - 74 time_format = self.format_time(expression) - 75 if time_format not in (Hive.time_format, Hive.date_format): - 76 this = f"FROM_UNIXTIME(UNIX_TIMESTAMP({this}, {time_format}))" - 77 return f"CAST({this} AS DATE)" - 78 + 72 + 73def _str_to_date(self, expression): + 74 this = self.sql(expression, "this") + 75 time_format = self.format_time(expression) + 76 if time_format not in (Hive.time_format, Hive.date_format): + 77 this = f"FROM_UNIXTIME(UNIX_TIMESTAMP({this}, {time_format}))" + 78 return f"CAST({this} AS DATE)" 79 - 80def _str_to_time(self, expression): - 81 this = self.sql(expression, "this") - 82 time_format = self.format_time(expression) - 83 if time_format not in (Hive.time_format, Hive.date_format): - 84 this = f"FROM_UNIXTIME(UNIX_TIMESTAMP({this}, {time_format}))" - 85 return f"CAST({this} AS TIMESTAMP)" - 86 + 80 + 81def _str_to_time(self, expression): + 82 this = self.sql(expression, "this") + 83 time_format = self.format_time(expression) + 84 if time_format not in (Hive.time_format, Hive.date_format): + 85 this = f"FROM_UNIXTIME(UNIX_TIMESTAMP({this}, {time_format}))" + 86 return f"CAST({this} AS TIMESTAMP)" 87 - 88def _time_format(self, expression): - 89 time_format = self.format_time(expression) - 90 if time_format == Hive.time_format: - 91 return None - 92 return time_format - 93 + 88 + 89def _time_format(self, expression): + 90 time_format = self.format_time(expression) + 91 if time_format == Hive.time_format: + 92 return None + 93 return time_format 94 - 95def _time_to_str(self, expression): - 96 this = self.sql(expression, "this") - 97 time_format = self.format_time(expression) - 98 return f"DATE_FORMAT({this}, {time_format})" - 99 + 95 + 96def _time_to_str(self, expression): + 97 this = self.sql(expression, "this") + 98 time_format = self.format_time(expression) + 99 return f"DATE_FORMAT({this}, {time_format})" 100 -101def _to_date_sql(self, expression): -102 this = self.sql(expression, "this") -103 time_format = self.format_time(expression) -104 if time_format and time_format not in (Hive.time_format, Hive.date_format): -105 return f"TO_DATE({this}, {time_format})" -106 return f"TO_DATE({this})" -107 +101 +102def _to_date_sql(self, expression): +103 this = self.sql(expression, "this") +104 time_format = self.format_time(expression) +105 if time_format and time_format not in (Hive.time_format, Hive.date_format): +106 return f"TO_DATE({this}, {time_format})" +107 return f"TO_DATE({this})" 108 -109def _unnest_to_explode_sql(self, expression): -110 unnest = expression.this -111 if isinstance(unnest, exp.Unnest): -112 alias = unnest.args.get("alias") -113 udtf = exp.Posexplode if unnest.args.get("ordinality") else exp.Explode -114 return "".join( -115 self.sql( -116 exp.Lateral( -117 this=udtf(this=expression), -118 view=True, -119 alias=exp.TableAlias(this=alias.this, columns=[column]), -120 ) -121 ) -122 for expression, column in zip(unnest.expressions, alias.columns if alias else []) -123 ) -124 return self.join_sql(expression) -125 +109 +110def _unnest_to_explode_sql(self, expression): +111 unnest = expression.this +112 if isinstance(unnest, exp.Unnest): +113 alias = unnest.args.get("alias") +114 udtf = exp.Posexplode if unnest.args.get("ordinality") else exp.Explode +115 return "".join( +116 self.sql( +117 exp.Lateral( +118 this=udtf(this=expression), +119 view=True, +120 alias=exp.TableAlias(this=alias.this, columns=[column]), +121 ) +122 ) +123 for expression, column in zip(unnest.expressions, alias.columns if alias else []) +124 ) +125 return self.join_sql(expression) 126 -127def _index_sql(self, expression): -128 this = self.sql(expression, "this") -129 table = self.sql(expression, "table") -130 columns = self.sql(expression, "columns") -131 return f"{this} ON TABLE {table} {columns}" -132 +127 +128def _index_sql(self, expression): +129 this = self.sql(expression, "this") +130 table = self.sql(expression, "table") +131 columns = self.sql(expression, "columns") +132 return f"{this} ON TABLE {table} {columns}" 133 -134class Hive(Dialect): -135 alias_post_tablesample = True -136 -137 time_mapping = { -138 "y": "%Y", -139 "Y": "%Y", -140 "YYYY": "%Y", -141 "yyyy": "%Y", -142 "YY": "%y", -143 "yy": "%y", -144 "MMMM": "%B", -145 "MMM": "%b", -146 "MM": "%m", -147 "M": "%-m", -148 "dd": "%d", -149 "d": "%-d", -150 "HH": "%H", -151 "H": "%-H", -152 "hh": "%I", -153 "h": "%-I", -154 "mm": "%M", -155 "m": "%-M", -156 "ss": "%S", -157 "s": "%-S", -158 "SSSSSS": "%f", -159 "a": "%p", -160 "DD": "%j", -161 "D": "%-j", -162 "E": "%a", -163 "EE": "%a", -164 "EEE": "%a", -165 "EEEE": "%A", -166 } -167 -168 date_format = "'yyyy-MM-dd'" -169 dateint_format = "'yyyyMMdd'" -170 time_format = "'yyyy-MM-dd HH:mm:ss'" -171 -172 class Tokenizer(tokens.Tokenizer): -173 QUOTES = ["'", '"'] -174 IDENTIFIERS = ["`"] -175 STRING_ESCAPES = ["\\"] -176 ENCODE = "utf-8" -177 -178 KEYWORDS = { -179 **tokens.Tokenizer.KEYWORDS, -180 "ADD ARCHIVE": TokenType.COMMAND, -181 "ADD ARCHIVES": TokenType.COMMAND, -182 "ADD FILE": TokenType.COMMAND, -183 "ADD FILES": TokenType.COMMAND, -184 "ADD JAR": TokenType.COMMAND, -185 "ADD JARS": TokenType.COMMAND, -186 "MSCK REPAIR": TokenType.COMMAND, -187 "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES, -188 } -189 -190 NUMERIC_LITERALS = { -191 "L": "BIGINT", -192 "S": "SMALLINT", -193 "Y": "TINYINT", -194 "D": "DOUBLE", -195 "F": "FLOAT", -196 "BD": "DECIMAL", -197 } -198 -199 IDENTIFIER_CAN_START_WITH_DIGIT = True -200 -201 class Parser(parser.Parser): -202 STRICT_CAST = False -203 -204 FUNCTIONS = { -205 **parser.Parser.FUNCTIONS, # type: ignore -206 "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list, -207 "COLLECT_LIST": exp.ArrayAgg.from_arg_list, -208 "DATE_ADD": lambda args: exp.TsOrDsAdd( -209 this=seq_get(args, 0), -210 expression=seq_get(args, 1), -211 unit=exp.Literal.string("DAY"), -212 ), -213 "DATEDIFF": lambda args: exp.DateDiff( -214 this=exp.TsOrDsToDate(this=seq_get(args, 0)), -215 expression=exp.TsOrDsToDate(this=seq_get(args, 1)), -216 ), -217 "DATE_SUB": lambda args: exp.TsOrDsAdd( -218 this=seq_get(args, 0), -219 expression=exp.Mul( -220 this=seq_get(args, 1), -221 expression=exp.Literal.number(-1), -222 ), -223 unit=exp.Literal.string("DAY"), -224 ), -225 "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")( -226 [ -227 exp.TimeStrToTime(this=seq_get(args, 0)), -228 seq_get(args, 1), -229 ] -230 ), -231 "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))), -232 "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True), -233 "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list, -234 "LOCATE": locate_to_strposition, -235 "LOG": ( -236 lambda args: exp.Log.from_arg_list(args) -237 if len(args) > 1 -238 else exp.Ln.from_arg_list(args) -239 ), -240 "MAP": parse_var_map, -241 "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)), -242 "PERCENTILE": exp.Quantile.from_arg_list, -243 "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list, -244 "COLLECT_SET": exp.SetAgg.from_arg_list, -245 "SIZE": exp.ArraySize.from_arg_list, -246 "SPLIT": exp.RegexpSplit.from_arg_list, -247 "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), -248 "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), -249 "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), -250 } -251 -252 PROPERTY_PARSERS = { -253 **parser.Parser.PROPERTY_PARSERS, # type: ignore -254 "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties( -255 expressions=self._parse_wrapped_csv(self._parse_property) -256 ), -257 } -258 -259 class Generator(generator.Generator): -260 TYPE_MAPPING = { -261 **generator.Generator.TYPE_MAPPING, # type: ignore -262 exp.DataType.Type.TEXT: "STRING", -263 exp.DataType.Type.DATETIME: "TIMESTAMP", -264 exp.DataType.Type.VARBINARY: "BINARY", -265 } -266 -267 TRANSFORMS = { -268 **generator.Generator.TRANSFORMS, # type: ignore -269 **transforms.UNALIAS_GROUP, # type: ignore -270 exp.Property: _property_sql, -271 exp.ApproxDistinct: approx_count_distinct_sql, -272 exp.ArrayAgg: rename_func("COLLECT_LIST"), -273 exp.ArrayConcat: rename_func("CONCAT"), -274 exp.ArraySize: rename_func("SIZE"), -275 exp.ArraySort: _array_sort, -276 exp.With: no_recursive_cte_sql, -277 exp.DateAdd: _add_date_sql, -278 exp.DateDiff: _date_diff_sql, -279 exp.DateStrToDate: rename_func("TO_DATE"), -280 exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)", -281 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})", -282 exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}", -283 exp.If: if_sql, -284 exp.Index: _index_sql, -285 exp.ILike: no_ilike_sql, -286 exp.Join: _unnest_to_explode_sql, -287 exp.JSONExtract: rename_func("GET_JSON_OBJECT"), -288 exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), -289 exp.Map: var_map_sql, -290 exp.VarMap: var_map_sql, -291 exp.Create: create_with_partitions_sql, -292 exp.Quantile: rename_func("PERCENTILE"), -293 exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"), -294 exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"), -295 exp.RegexpSplit: rename_func("SPLIT"), -296 exp.SafeDivide: no_safe_divide_sql, -297 exp.SchemaCommentProperty: lambda self, e: self.naked_property(e), -298 exp.SetAgg: rename_func("COLLECT_SET"), -299 exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))", -300 exp.StrPosition: strposition_to_locate_sql, -301 exp.StrToDate: _str_to_date, -302 exp.StrToTime: _str_to_time, -303 exp.StrToUnix: _str_to_unix, -304 exp.StructExtract: struct_extract_sql, -305 exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}", -306 exp.TimeStrToDate: rename_func("TO_DATE"), -307 exp.TimeStrToTime: timestrtotime_sql, -308 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), -309 exp.TimeToStr: _time_to_str, -310 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), -311 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)", -312 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})", -313 exp.TsOrDsToDate: _to_date_sql, -314 exp.TryCast: no_trycast_sql, -315 exp.UnixToStr: lambda self, e: self.func( -316 "FROM_UNIXTIME", e.this, _time_format(self, e) -317 ), -318 exp.UnixToTime: rename_func("FROM_UNIXTIME"), -319 exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"), -320 exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}", -321 exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}", -322 exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"), -323 exp.NumberToStr: rename_func("FORMAT_NUMBER"), -324 exp.LastDateOfMonth: rename_func("LAST_DAY"), -325 } -326 -327 PROPERTIES_LOCATION = { -328 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -329 exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA, -330 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, -331 exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA, -332 } -333 -334 def with_properties(self, properties): -335 return self.properties( -336 properties, -337 prefix=self.seg("TBLPROPERTIES"), -338 ) +134 +135class Hive(Dialect): +136 alias_post_tablesample = True +137 +138 time_mapping = { +139 "y": "%Y", +140 "Y": "%Y", +141 "YYYY": "%Y", +142 "yyyy": "%Y", +143 "YY": "%y", +144 "yy": "%y", +145 "MMMM": "%B", +146 "MMM": "%b", +147 "MM": "%m", +148 "M": "%-m", +149 "dd": "%d", +150 "d": "%-d", +151 "HH": "%H", +152 "H": "%-H", +153 "hh": "%I", +154 "h": "%-I", +155 "mm": "%M", +156 "m": "%-M", +157 "ss": "%S", +158 "s": "%-S", +159 "SSSSSS": "%f", +160 "a": "%p", +161 "DD": "%j", +162 "D": "%-j", +163 "E": "%a", +164 "EE": "%a", +165 "EEE": "%a", +166 "EEEE": "%A", +167 } +168 +169 date_format = "'yyyy-MM-dd'" +170 dateint_format = "'yyyyMMdd'" +171 time_format = "'yyyy-MM-dd HH:mm:ss'" +172 +173 class Tokenizer(tokens.Tokenizer): +174 QUOTES = ["'", '"'] +175 IDENTIFIERS = ["`"] +176 STRING_ESCAPES = ["\\"] +177 ENCODE = "utf-8" +178 +179 KEYWORDS = { +180 **tokens.Tokenizer.KEYWORDS, +181 "ADD ARCHIVE": TokenType.COMMAND, +182 "ADD ARCHIVES": TokenType.COMMAND, +183 "ADD FILE": TokenType.COMMAND, +184 "ADD FILES": TokenType.COMMAND, +185 "ADD JAR": TokenType.COMMAND, +186 "ADD JARS": TokenType.COMMAND, +187 "MSCK REPAIR": TokenType.COMMAND, +188 "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES, +189 } +190 +191 NUMERIC_LITERALS = { +192 "L": "BIGINT", +193 "S": "SMALLINT", +194 "Y": "TINYINT", +195 "D": "DOUBLE", +196 "F": "FLOAT", +197 "BD": "DECIMAL", +198 } +199 +200 IDENTIFIER_CAN_START_WITH_DIGIT = True +201 +202 class Parser(parser.Parser): +203 STRICT_CAST = False +204 +205 FUNCTIONS = { +206 **parser.Parser.FUNCTIONS, # type: ignore +207 "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list, +208 "COLLECT_LIST": exp.ArrayAgg.from_arg_list, +209 "DATE_ADD": lambda args: exp.TsOrDsAdd( +210 this=seq_get(args, 0), +211 expression=seq_get(args, 1), +212 unit=exp.Literal.string("DAY"), +213 ), +214 "DATEDIFF": lambda args: exp.DateDiff( +215 this=exp.TsOrDsToDate(this=seq_get(args, 0)), +216 expression=exp.TsOrDsToDate(this=seq_get(args, 1)), +217 ), +218 "DATE_SUB": lambda args: exp.TsOrDsAdd( +219 this=seq_get(args, 0), +220 expression=exp.Mul( +221 this=seq_get(args, 1), +222 expression=exp.Literal.number(-1), +223 ), +224 unit=exp.Literal.string("DAY"), +225 ), +226 "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")( +227 [ +228 exp.TimeStrToTime(this=seq_get(args, 0)), +229 seq_get(args, 1), +230 ] +231 ), +232 "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))), +233 "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True), +234 "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list, +235 "LOCATE": locate_to_strposition, +236 "LOG": ( +237 lambda args: exp.Log.from_arg_list(args) +238 if len(args) > 1 +239 else exp.Ln.from_arg_list(args) +240 ), +241 "MAP": parse_var_map, +242 "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)), +243 "PERCENTILE": exp.Quantile.from_arg_list, +244 "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list, +245 "COLLECT_SET": exp.SetAgg.from_arg_list, +246 "SIZE": exp.ArraySize.from_arg_list, +247 "SPLIT": exp.RegexpSplit.from_arg_list, +248 "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), +249 "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), +250 "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), +251 } +252 +253 PROPERTY_PARSERS = { +254 **parser.Parser.PROPERTY_PARSERS, # type: ignore +255 "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties( +256 expressions=self._parse_wrapped_csv(self._parse_property) +257 ), +258 } +259 +260 INTEGER_DIVISION = False +261 +262 class Generator(generator.Generator): +263 INTEGER_DIVISION = False +264 +265 TYPE_MAPPING = { +266 **generator.Generator.TYPE_MAPPING, # type: ignore +267 exp.DataType.Type.TEXT: "STRING", +268 exp.DataType.Type.DATETIME: "TIMESTAMP", +269 exp.DataType.Type.VARBINARY: "BINARY", +270 } +271 +272 TRANSFORMS = { +273 **generator.Generator.TRANSFORMS, # type: ignore +274 **transforms.UNALIAS_GROUP, # type: ignore +275 exp.Property: _property_sql, +276 exp.ApproxDistinct: approx_count_distinct_sql, +277 exp.ArrayAgg: rename_func("COLLECT_LIST"), +278 exp.ArrayConcat: rename_func("CONCAT"), +279 exp.ArraySize: rename_func("SIZE"), +280 exp.ArraySort: _array_sort, +281 exp.With: no_recursive_cte_sql, +282 exp.DateAdd: _add_date_sql, +283 exp.DateDiff: _date_diff_sql, +284 exp.DateStrToDate: rename_func("TO_DATE"), +285 exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)", +286 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})", +287 exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}", +288 exp.If: if_sql, +289 exp.Index: _index_sql, +290 exp.ILike: no_ilike_sql, +291 exp.Join: _unnest_to_explode_sql, +292 exp.JSONExtract: rename_func("GET_JSON_OBJECT"), +293 exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), +294 exp.Map: var_map_sql, +295 exp.Min: min_or_least, +296 exp.VarMap: var_map_sql, +297 exp.Create: create_with_partitions_sql, +298 exp.Quantile: rename_func("PERCENTILE"), +299 exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"), +300 exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"), +301 exp.RegexpSplit: rename_func("SPLIT"), +302 exp.SafeDivide: no_safe_divide_sql, +303 exp.SchemaCommentProperty: lambda self, e: self.naked_property(e), +304 exp.SetAgg: rename_func("COLLECT_SET"), +305 exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))", +306 exp.StrPosition: strposition_to_locate_sql, +307 exp.StrToDate: _str_to_date, +308 exp.StrToTime: _str_to_time, +309 exp.StrToUnix: _str_to_unix, +310 exp.StructExtract: struct_extract_sql, +311 exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}", +312 exp.TimeStrToDate: rename_func("TO_DATE"), +313 exp.TimeStrToTime: timestrtotime_sql, +314 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +315 exp.TimeToStr: _time_to_str, +316 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), +317 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)", +318 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})", +319 exp.TsOrDsToDate: _to_date_sql, +320 exp.TryCast: no_trycast_sql, +321 exp.UnixToStr: lambda self, e: self.func( +322 "FROM_UNIXTIME", e.this, _time_format(self, e) +323 ), +324 exp.UnixToTime: rename_func("FROM_UNIXTIME"), +325 exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"), +326 exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}", +327 exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}", +328 exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"), +329 exp.NumberToStr: rename_func("FORMAT_NUMBER"), +330 exp.LastDateOfMonth: rename_func("LAST_DAY"), +331 } +332 +333 PROPERTIES_LOCATION = { +334 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +335 exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA, +336 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, +337 exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA, +338 } 339 -340 def datatype_sql(self, expression): -341 if ( -342 expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR) -343 and not expression.expressions -344 ): -345 expression = exp.DataType.build("text") -346 elif expression.this in exp.DataType.TEMPORAL_TYPES: -347 expression = exp.DataType.build(expression.this) -348 return super().datatype_sql(expression) +340 def with_properties(self, properties): +341 return self.properties( +342 properties, +343 prefix=self.seg("TBLPROPERTIES"), +344 ) +345 +346 def datatype_sql(self, expression): +347 if ( +348 expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR) +349 and not expression.expressions +350 ): +351 expression = exp.DataType.build("text") +352 elif expression.this in exp.DataType.TEMPORAL_TYPES: +353 expression = exp.DataType.build(expression.this) +354 return super().datatype_sql(expression)
    @@ -446,221 +452,226 @@
    -
    135class Hive(Dialect):
    -136    alias_post_tablesample = True
    -137
    -138    time_mapping = {
    -139        "y": "%Y",
    -140        "Y": "%Y",
    -141        "YYYY": "%Y",
    -142        "yyyy": "%Y",
    -143        "YY": "%y",
    -144        "yy": "%y",
    -145        "MMMM": "%B",
    -146        "MMM": "%b",
    -147        "MM": "%m",
    -148        "M": "%-m",
    -149        "dd": "%d",
    -150        "d": "%-d",
    -151        "HH": "%H",
    -152        "H": "%-H",
    -153        "hh": "%I",
    -154        "h": "%-I",
    -155        "mm": "%M",
    -156        "m": "%-M",
    -157        "ss": "%S",
    -158        "s": "%-S",
    -159        "SSSSSS": "%f",
    -160        "a": "%p",
    -161        "DD": "%j",
    -162        "D": "%-j",
    -163        "E": "%a",
    -164        "EE": "%a",
    -165        "EEE": "%a",
    -166        "EEEE": "%A",
    -167    }
    -168
    -169    date_format = "'yyyy-MM-dd'"
    -170    dateint_format = "'yyyyMMdd'"
    -171    time_format = "'yyyy-MM-dd HH:mm:ss'"
    -172
    -173    class Tokenizer(tokens.Tokenizer):
    -174        QUOTES = ["'", '"']
    -175        IDENTIFIERS = ["`"]
    -176        STRING_ESCAPES = ["\\"]
    -177        ENCODE = "utf-8"
    -178
    -179        KEYWORDS = {
    -180            **tokens.Tokenizer.KEYWORDS,
    -181            "ADD ARCHIVE": TokenType.COMMAND,
    -182            "ADD ARCHIVES": TokenType.COMMAND,
    -183            "ADD FILE": TokenType.COMMAND,
    -184            "ADD FILES": TokenType.COMMAND,
    -185            "ADD JAR": TokenType.COMMAND,
    -186            "ADD JARS": TokenType.COMMAND,
    -187            "MSCK REPAIR": TokenType.COMMAND,
    -188            "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    -189        }
    -190
    -191        NUMERIC_LITERALS = {
    -192            "L": "BIGINT",
    -193            "S": "SMALLINT",
    -194            "Y": "TINYINT",
    -195            "D": "DOUBLE",
    -196            "F": "FLOAT",
    -197            "BD": "DECIMAL",
    -198        }
    -199
    -200        IDENTIFIER_CAN_START_WITH_DIGIT = True
    -201
    -202    class Parser(parser.Parser):
    -203        STRICT_CAST = False
    -204
    -205        FUNCTIONS = {
    -206            **parser.Parser.FUNCTIONS,  # type: ignore
    -207            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    -208            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    -209            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    -210                this=seq_get(args, 0),
    -211                expression=seq_get(args, 1),
    -212                unit=exp.Literal.string("DAY"),
    -213            ),
    -214            "DATEDIFF": lambda args: exp.DateDiff(
    -215                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    -216                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    -217            ),
    -218            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    -219                this=seq_get(args, 0),
    -220                expression=exp.Mul(
    -221                    this=seq_get(args, 1),
    -222                    expression=exp.Literal.number(-1),
    -223                ),
    -224                unit=exp.Literal.string("DAY"),
    -225            ),
    -226            "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")(
    -227                [
    -228                    exp.TimeStrToTime(this=seq_get(args, 0)),
    -229                    seq_get(args, 1),
    -230                ]
    -231            ),
    -232            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    -233            "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True),
    -234            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    -235            "LOCATE": locate_to_strposition,
    -236            "LOG": (
    -237                lambda args: exp.Log.from_arg_list(args)
    -238                if len(args) > 1
    -239                else exp.Ln.from_arg_list(args)
    -240            ),
    -241            "MAP": parse_var_map,
    -242            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    -243            "PERCENTILE": exp.Quantile.from_arg_list,
    -244            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    -245            "COLLECT_SET": exp.SetAgg.from_arg_list,
    -246            "SIZE": exp.ArraySize.from_arg_list,
    -247            "SPLIT": exp.RegexpSplit.from_arg_list,
    -248            "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"),
    -249            "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True),
    -250            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    -251        }
    -252
    -253        PROPERTY_PARSERS = {
    -254            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    -255            "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    -256                expressions=self._parse_wrapped_csv(self._parse_property)
    -257            ),
    -258        }
    -259
    -260    class Generator(generator.Generator):
    -261        TYPE_MAPPING = {
    -262            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -263            exp.DataType.Type.TEXT: "STRING",
    -264            exp.DataType.Type.DATETIME: "TIMESTAMP",
    -265            exp.DataType.Type.VARBINARY: "BINARY",
    -266        }
    -267
    -268        TRANSFORMS = {
    -269            **generator.Generator.TRANSFORMS,  # type: ignore
    -270            **transforms.UNALIAS_GROUP,  # type: ignore
    -271            exp.Property: _property_sql,
    -272            exp.ApproxDistinct: approx_count_distinct_sql,
    -273            exp.ArrayAgg: rename_func("COLLECT_LIST"),
    -274            exp.ArrayConcat: rename_func("CONCAT"),
    -275            exp.ArraySize: rename_func("SIZE"),
    -276            exp.ArraySort: _array_sort,
    -277            exp.With: no_recursive_cte_sql,
    -278            exp.DateAdd: _add_date_sql,
    -279            exp.DateDiff: _date_diff_sql,
    -280            exp.DateStrToDate: rename_func("TO_DATE"),
    -281            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)",
    -282            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})",
    -283            exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}",
    -284            exp.If: if_sql,
    -285            exp.Index: _index_sql,
    -286            exp.ILike: no_ilike_sql,
    -287            exp.Join: _unnest_to_explode_sql,
    -288            exp.JSONExtract: rename_func("GET_JSON_OBJECT"),
    -289            exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"),
    -290            exp.Map: var_map_sql,
    -291            exp.VarMap: var_map_sql,
    -292            exp.Create: create_with_partitions_sql,
    -293            exp.Quantile: rename_func("PERCENTILE"),
    -294            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    -295            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    -296            exp.RegexpSplit: rename_func("SPLIT"),
    -297            exp.SafeDivide: no_safe_divide_sql,
    -298            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    -299            exp.SetAgg: rename_func("COLLECT_SET"),
    -300            exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))",
    -301            exp.StrPosition: strposition_to_locate_sql,
    -302            exp.StrToDate: _str_to_date,
    -303            exp.StrToTime: _str_to_time,
    -304            exp.StrToUnix: _str_to_unix,
    -305            exp.StructExtract: struct_extract_sql,
    -306            exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}",
    -307            exp.TimeStrToDate: rename_func("TO_DATE"),
    -308            exp.TimeStrToTime: timestrtotime_sql,
    -309            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    -310            exp.TimeToStr: _time_to_str,
    -311            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    -312            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    -313            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -314            exp.TsOrDsToDate: _to_date_sql,
    -315            exp.TryCast: no_trycast_sql,
    -316            exp.UnixToStr: lambda self, e: self.func(
    -317                "FROM_UNIXTIME", e.this, _time_format(self, e)
    -318            ),
    -319            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    -320            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    -321            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    -322            exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}",
    -323            exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"),
    -324            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    -325            exp.LastDateOfMonth: rename_func("LAST_DAY"),
    -326        }
    -327
    -328        PROPERTIES_LOCATION = {
    -329            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -330            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    -331            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    -332            exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA,
    -333        }
    -334
    -335        def with_properties(self, properties):
    -336            return self.properties(
    -337                properties,
    -338                prefix=self.seg("TBLPROPERTIES"),
    -339            )
    +            
    136class Hive(Dialect):
    +137    alias_post_tablesample = True
    +138
    +139    time_mapping = {
    +140        "y": "%Y",
    +141        "Y": "%Y",
    +142        "YYYY": "%Y",
    +143        "yyyy": "%Y",
    +144        "YY": "%y",
    +145        "yy": "%y",
    +146        "MMMM": "%B",
    +147        "MMM": "%b",
    +148        "MM": "%m",
    +149        "M": "%-m",
    +150        "dd": "%d",
    +151        "d": "%-d",
    +152        "HH": "%H",
    +153        "H": "%-H",
    +154        "hh": "%I",
    +155        "h": "%-I",
    +156        "mm": "%M",
    +157        "m": "%-M",
    +158        "ss": "%S",
    +159        "s": "%-S",
    +160        "SSSSSS": "%f",
    +161        "a": "%p",
    +162        "DD": "%j",
    +163        "D": "%-j",
    +164        "E": "%a",
    +165        "EE": "%a",
    +166        "EEE": "%a",
    +167        "EEEE": "%A",
    +168    }
    +169
    +170    date_format = "'yyyy-MM-dd'"
    +171    dateint_format = "'yyyyMMdd'"
    +172    time_format = "'yyyy-MM-dd HH:mm:ss'"
    +173
    +174    class Tokenizer(tokens.Tokenizer):
    +175        QUOTES = ["'", '"']
    +176        IDENTIFIERS = ["`"]
    +177        STRING_ESCAPES = ["\\"]
    +178        ENCODE = "utf-8"
    +179
    +180        KEYWORDS = {
    +181            **tokens.Tokenizer.KEYWORDS,
    +182            "ADD ARCHIVE": TokenType.COMMAND,
    +183            "ADD ARCHIVES": TokenType.COMMAND,
    +184            "ADD FILE": TokenType.COMMAND,
    +185            "ADD FILES": TokenType.COMMAND,
    +186            "ADD JAR": TokenType.COMMAND,
    +187            "ADD JARS": TokenType.COMMAND,
    +188            "MSCK REPAIR": TokenType.COMMAND,
    +189            "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    +190        }
    +191
    +192        NUMERIC_LITERALS = {
    +193            "L": "BIGINT",
    +194            "S": "SMALLINT",
    +195            "Y": "TINYINT",
    +196            "D": "DOUBLE",
    +197            "F": "FLOAT",
    +198            "BD": "DECIMAL",
    +199        }
    +200
    +201        IDENTIFIER_CAN_START_WITH_DIGIT = True
    +202
    +203    class Parser(parser.Parser):
    +204        STRICT_CAST = False
    +205
    +206        FUNCTIONS = {
    +207            **parser.Parser.FUNCTIONS,  # type: ignore
    +208            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    +209            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    +210            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    +211                this=seq_get(args, 0),
    +212                expression=seq_get(args, 1),
    +213                unit=exp.Literal.string("DAY"),
    +214            ),
    +215            "DATEDIFF": lambda args: exp.DateDiff(
    +216                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    +217                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    +218            ),
    +219            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    +220                this=seq_get(args, 0),
    +221                expression=exp.Mul(
    +222                    this=seq_get(args, 1),
    +223                    expression=exp.Literal.number(-1),
    +224                ),
    +225                unit=exp.Literal.string("DAY"),
    +226            ),
    +227            "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")(
    +228                [
    +229                    exp.TimeStrToTime(this=seq_get(args, 0)),
    +230                    seq_get(args, 1),
    +231                ]
    +232            ),
    +233            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    +234            "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True),
    +235            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    +236            "LOCATE": locate_to_strposition,
    +237            "LOG": (
    +238                lambda args: exp.Log.from_arg_list(args)
    +239                if len(args) > 1
    +240                else exp.Ln.from_arg_list(args)
    +241            ),
    +242            "MAP": parse_var_map,
    +243            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    +244            "PERCENTILE": exp.Quantile.from_arg_list,
    +245            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    +246            "COLLECT_SET": exp.SetAgg.from_arg_list,
    +247            "SIZE": exp.ArraySize.from_arg_list,
    +248            "SPLIT": exp.RegexpSplit.from_arg_list,
    +249            "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"),
    +250            "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True),
    +251            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    +252        }
    +253
    +254        PROPERTY_PARSERS = {
    +255            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    +256            "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    +257                expressions=self._parse_wrapped_csv(self._parse_property)
    +258            ),
    +259        }
    +260
    +261        INTEGER_DIVISION = False
    +262
    +263    class Generator(generator.Generator):
    +264        INTEGER_DIVISION = False
    +265
    +266        TYPE_MAPPING = {
    +267            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +268            exp.DataType.Type.TEXT: "STRING",
    +269            exp.DataType.Type.DATETIME: "TIMESTAMP",
    +270            exp.DataType.Type.VARBINARY: "BINARY",
    +271        }
    +272
    +273        TRANSFORMS = {
    +274            **generator.Generator.TRANSFORMS,  # type: ignore
    +275            **transforms.UNALIAS_GROUP,  # type: ignore
    +276            exp.Property: _property_sql,
    +277            exp.ApproxDistinct: approx_count_distinct_sql,
    +278            exp.ArrayAgg: rename_func("COLLECT_LIST"),
    +279            exp.ArrayConcat: rename_func("CONCAT"),
    +280            exp.ArraySize: rename_func("SIZE"),
    +281            exp.ArraySort: _array_sort,
    +282            exp.With: no_recursive_cte_sql,
    +283            exp.DateAdd: _add_date_sql,
    +284            exp.DateDiff: _date_diff_sql,
    +285            exp.DateStrToDate: rename_func("TO_DATE"),
    +286            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)",
    +287            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})",
    +288            exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}",
    +289            exp.If: if_sql,
    +290            exp.Index: _index_sql,
    +291            exp.ILike: no_ilike_sql,
    +292            exp.Join: _unnest_to_explode_sql,
    +293            exp.JSONExtract: rename_func("GET_JSON_OBJECT"),
    +294            exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"),
    +295            exp.Map: var_map_sql,
    +296            exp.Min: min_or_least,
    +297            exp.VarMap: var_map_sql,
    +298            exp.Create: create_with_partitions_sql,
    +299            exp.Quantile: rename_func("PERCENTILE"),
    +300            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    +301            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    +302            exp.RegexpSplit: rename_func("SPLIT"),
    +303            exp.SafeDivide: no_safe_divide_sql,
    +304            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    +305            exp.SetAgg: rename_func("COLLECT_SET"),
    +306            exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))",
    +307            exp.StrPosition: strposition_to_locate_sql,
    +308            exp.StrToDate: _str_to_date,
    +309            exp.StrToTime: _str_to_time,
    +310            exp.StrToUnix: _str_to_unix,
    +311            exp.StructExtract: struct_extract_sql,
    +312            exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}",
    +313            exp.TimeStrToDate: rename_func("TO_DATE"),
    +314            exp.TimeStrToTime: timestrtotime_sql,
    +315            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    +316            exp.TimeToStr: _time_to_str,
    +317            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    +318            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    +319            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +320            exp.TsOrDsToDate: _to_date_sql,
    +321            exp.TryCast: no_trycast_sql,
    +322            exp.UnixToStr: lambda self, e: self.func(
    +323                "FROM_UNIXTIME", e.this, _time_format(self, e)
    +324            ),
    +325            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    +326            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    +327            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    +328            exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}",
    +329            exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"),
    +330            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    +331            exp.LastDateOfMonth: rename_func("LAST_DAY"),
    +332        }
    +333
    +334        PROPERTIES_LOCATION = {
    +335            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +336            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    +337            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    +338            exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA,
    +339        }
     340
    -341        def datatype_sql(self, expression):
    -342            if (
    -343                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    -344                and not expression.expressions
    -345            ):
    -346                expression = exp.DataType.build("text")
    -347            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    -348                expression = exp.DataType.build(expression.this)
    -349            return super().datatype_sql(expression)
    +341        def with_properties(self, properties):
    +342            return self.properties(
    +343                properties,
    +344                prefix=self.seg("TBLPROPERTIES"),
    +345            )
    +346
    +347        def datatype_sql(self, expression):
    +348            if (
    +349                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    +350                and not expression.expressions
    +351            ):
    +352                expression = exp.DataType.build("text")
    +353            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    +354                expression = exp.DataType.build(expression.this)
    +355            return super().datatype_sql(expression)
     
    @@ -694,34 +705,34 @@
    -
    173    class Tokenizer(tokens.Tokenizer):
    -174        QUOTES = ["'", '"']
    -175        IDENTIFIERS = ["`"]
    -176        STRING_ESCAPES = ["\\"]
    -177        ENCODE = "utf-8"
    -178
    -179        KEYWORDS = {
    -180            **tokens.Tokenizer.KEYWORDS,
    -181            "ADD ARCHIVE": TokenType.COMMAND,
    -182            "ADD ARCHIVES": TokenType.COMMAND,
    -183            "ADD FILE": TokenType.COMMAND,
    -184            "ADD FILES": TokenType.COMMAND,
    -185            "ADD JAR": TokenType.COMMAND,
    -186            "ADD JARS": TokenType.COMMAND,
    -187            "MSCK REPAIR": TokenType.COMMAND,
    -188            "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    -189        }
    -190
    -191        NUMERIC_LITERALS = {
    -192            "L": "BIGINT",
    -193            "S": "SMALLINT",
    -194            "Y": "TINYINT",
    -195            "D": "DOUBLE",
    -196            "F": "FLOAT",
    -197            "BD": "DECIMAL",
    -198        }
    -199
    -200        IDENTIFIER_CAN_START_WITH_DIGIT = True
    +            
    174    class Tokenizer(tokens.Tokenizer):
    +175        QUOTES = ["'", '"']
    +176        IDENTIFIERS = ["`"]
    +177        STRING_ESCAPES = ["\\"]
    +178        ENCODE = "utf-8"
    +179
    +180        KEYWORDS = {
    +181            **tokens.Tokenizer.KEYWORDS,
    +182            "ADD ARCHIVE": TokenType.COMMAND,
    +183            "ADD ARCHIVES": TokenType.COMMAND,
    +184            "ADD FILE": TokenType.COMMAND,
    +185            "ADD FILES": TokenType.COMMAND,
    +186            "ADD JAR": TokenType.COMMAND,
    +187            "ADD JARS": TokenType.COMMAND,
    +188            "MSCK REPAIR": TokenType.COMMAND,
    +189            "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    +190        }
    +191
    +192        NUMERIC_LITERALS = {
    +193            "L": "BIGINT",
    +194            "S": "SMALLINT",
    +195            "Y": "TINYINT",
    +196            "D": "DOUBLE",
    +197            "F": "FLOAT",
    +198            "BD": "DECIMAL",
    +199        }
    +200
    +201        IDENTIFIER_CAN_START_WITH_DIGIT = True
     
    @@ -749,63 +760,65 @@
    -
    202    class Parser(parser.Parser):
    -203        STRICT_CAST = False
    -204
    -205        FUNCTIONS = {
    -206            **parser.Parser.FUNCTIONS,  # type: ignore
    -207            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    -208            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    -209            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    -210                this=seq_get(args, 0),
    -211                expression=seq_get(args, 1),
    -212                unit=exp.Literal.string("DAY"),
    -213            ),
    -214            "DATEDIFF": lambda args: exp.DateDiff(
    -215                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    -216                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    -217            ),
    -218            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    -219                this=seq_get(args, 0),
    -220                expression=exp.Mul(
    -221                    this=seq_get(args, 1),
    -222                    expression=exp.Literal.number(-1),
    -223                ),
    -224                unit=exp.Literal.string("DAY"),
    -225            ),
    -226            "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")(
    -227                [
    -228                    exp.TimeStrToTime(this=seq_get(args, 0)),
    -229                    seq_get(args, 1),
    -230                ]
    -231            ),
    -232            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    -233            "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True),
    -234            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    -235            "LOCATE": locate_to_strposition,
    -236            "LOG": (
    -237                lambda args: exp.Log.from_arg_list(args)
    -238                if len(args) > 1
    -239                else exp.Ln.from_arg_list(args)
    -240            ),
    -241            "MAP": parse_var_map,
    -242            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    -243            "PERCENTILE": exp.Quantile.from_arg_list,
    -244            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    -245            "COLLECT_SET": exp.SetAgg.from_arg_list,
    -246            "SIZE": exp.ArraySize.from_arg_list,
    -247            "SPLIT": exp.RegexpSplit.from_arg_list,
    -248            "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"),
    -249            "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True),
    -250            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    -251        }
    -252
    -253        PROPERTY_PARSERS = {
    -254            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    -255            "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    -256                expressions=self._parse_wrapped_csv(self._parse_property)
    -257            ),
    -258        }
    +            
    203    class Parser(parser.Parser):
    +204        STRICT_CAST = False
    +205
    +206        FUNCTIONS = {
    +207            **parser.Parser.FUNCTIONS,  # type: ignore
    +208            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    +209            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    +210            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    +211                this=seq_get(args, 0),
    +212                expression=seq_get(args, 1),
    +213                unit=exp.Literal.string("DAY"),
    +214            ),
    +215            "DATEDIFF": lambda args: exp.DateDiff(
    +216                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    +217                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    +218            ),
    +219            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    +220                this=seq_get(args, 0),
    +221                expression=exp.Mul(
    +222                    this=seq_get(args, 1),
    +223                    expression=exp.Literal.number(-1),
    +224                ),
    +225                unit=exp.Literal.string("DAY"),
    +226            ),
    +227            "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")(
    +228                [
    +229                    exp.TimeStrToTime(this=seq_get(args, 0)),
    +230                    seq_get(args, 1),
    +231                ]
    +232            ),
    +233            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    +234            "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True),
    +235            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    +236            "LOCATE": locate_to_strposition,
    +237            "LOG": (
    +238                lambda args: exp.Log.from_arg_list(args)
    +239                if len(args) > 1
    +240                else exp.Ln.from_arg_list(args)
    +241            ),
    +242            "MAP": parse_var_map,
    +243            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    +244            "PERCENTILE": exp.Quantile.from_arg_list,
    +245            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    +246            "COLLECT_SET": exp.SetAgg.from_arg_list,
    +247            "SIZE": exp.ArraySize.from_arg_list,
    +248            "SPLIT": exp.RegexpSplit.from_arg_list,
    +249            "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"),
    +250            "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True),
    +251            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    +252        }
    +253
    +254        PROPERTY_PARSERS = {
    +255            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    +256            "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    +257                expressions=self._parse_wrapped_csv(self._parse_property)
    +258            ),
    +259        }
    +260
    +261        INTEGER_DIVISION = False
     
    @@ -862,96 +875,99 @@ Default: "nulls_are_small"
    -
    260    class Generator(generator.Generator):
    -261        TYPE_MAPPING = {
    -262            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -263            exp.DataType.Type.TEXT: "STRING",
    -264            exp.DataType.Type.DATETIME: "TIMESTAMP",
    -265            exp.DataType.Type.VARBINARY: "BINARY",
    -266        }
    -267
    -268        TRANSFORMS = {
    -269            **generator.Generator.TRANSFORMS,  # type: ignore
    -270            **transforms.UNALIAS_GROUP,  # type: ignore
    -271            exp.Property: _property_sql,
    -272            exp.ApproxDistinct: approx_count_distinct_sql,
    -273            exp.ArrayAgg: rename_func("COLLECT_LIST"),
    -274            exp.ArrayConcat: rename_func("CONCAT"),
    -275            exp.ArraySize: rename_func("SIZE"),
    -276            exp.ArraySort: _array_sort,
    -277            exp.With: no_recursive_cte_sql,
    -278            exp.DateAdd: _add_date_sql,
    -279            exp.DateDiff: _date_diff_sql,
    -280            exp.DateStrToDate: rename_func("TO_DATE"),
    -281            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)",
    -282            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})",
    -283            exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}",
    -284            exp.If: if_sql,
    -285            exp.Index: _index_sql,
    -286            exp.ILike: no_ilike_sql,
    -287            exp.Join: _unnest_to_explode_sql,
    -288            exp.JSONExtract: rename_func("GET_JSON_OBJECT"),
    -289            exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"),
    -290            exp.Map: var_map_sql,
    -291            exp.VarMap: var_map_sql,
    -292            exp.Create: create_with_partitions_sql,
    -293            exp.Quantile: rename_func("PERCENTILE"),
    -294            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    -295            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    -296            exp.RegexpSplit: rename_func("SPLIT"),
    -297            exp.SafeDivide: no_safe_divide_sql,
    -298            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    -299            exp.SetAgg: rename_func("COLLECT_SET"),
    -300            exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))",
    -301            exp.StrPosition: strposition_to_locate_sql,
    -302            exp.StrToDate: _str_to_date,
    -303            exp.StrToTime: _str_to_time,
    -304            exp.StrToUnix: _str_to_unix,
    -305            exp.StructExtract: struct_extract_sql,
    -306            exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}",
    -307            exp.TimeStrToDate: rename_func("TO_DATE"),
    -308            exp.TimeStrToTime: timestrtotime_sql,
    -309            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    -310            exp.TimeToStr: _time_to_str,
    -311            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    -312            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    -313            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -314            exp.TsOrDsToDate: _to_date_sql,
    -315            exp.TryCast: no_trycast_sql,
    -316            exp.UnixToStr: lambda self, e: self.func(
    -317                "FROM_UNIXTIME", e.this, _time_format(self, e)
    -318            ),
    -319            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    -320            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    -321            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    -322            exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}",
    -323            exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"),
    -324            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    -325            exp.LastDateOfMonth: rename_func("LAST_DAY"),
    -326        }
    -327
    -328        PROPERTIES_LOCATION = {
    -329            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -330            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    -331            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    -332            exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA,
    -333        }
    -334
    -335        def with_properties(self, properties):
    -336            return self.properties(
    -337                properties,
    -338                prefix=self.seg("TBLPROPERTIES"),
    -339            )
    +            
    263    class Generator(generator.Generator):
    +264        INTEGER_DIVISION = False
    +265
    +266        TYPE_MAPPING = {
    +267            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +268            exp.DataType.Type.TEXT: "STRING",
    +269            exp.DataType.Type.DATETIME: "TIMESTAMP",
    +270            exp.DataType.Type.VARBINARY: "BINARY",
    +271        }
    +272
    +273        TRANSFORMS = {
    +274            **generator.Generator.TRANSFORMS,  # type: ignore
    +275            **transforms.UNALIAS_GROUP,  # type: ignore
    +276            exp.Property: _property_sql,
    +277            exp.ApproxDistinct: approx_count_distinct_sql,
    +278            exp.ArrayAgg: rename_func("COLLECT_LIST"),
    +279            exp.ArrayConcat: rename_func("CONCAT"),
    +280            exp.ArraySize: rename_func("SIZE"),
    +281            exp.ArraySort: _array_sort,
    +282            exp.With: no_recursive_cte_sql,
    +283            exp.DateAdd: _add_date_sql,
    +284            exp.DateDiff: _date_diff_sql,
    +285            exp.DateStrToDate: rename_func("TO_DATE"),
    +286            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)",
    +287            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})",
    +288            exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}",
    +289            exp.If: if_sql,
    +290            exp.Index: _index_sql,
    +291            exp.ILike: no_ilike_sql,
    +292            exp.Join: _unnest_to_explode_sql,
    +293            exp.JSONExtract: rename_func("GET_JSON_OBJECT"),
    +294            exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"),
    +295            exp.Map: var_map_sql,
    +296            exp.Min: min_or_least,
    +297            exp.VarMap: var_map_sql,
    +298            exp.Create: create_with_partitions_sql,
    +299            exp.Quantile: rename_func("PERCENTILE"),
    +300            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    +301            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    +302            exp.RegexpSplit: rename_func("SPLIT"),
    +303            exp.SafeDivide: no_safe_divide_sql,
    +304            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    +305            exp.SetAgg: rename_func("COLLECT_SET"),
    +306            exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))",
    +307            exp.StrPosition: strposition_to_locate_sql,
    +308            exp.StrToDate: _str_to_date,
    +309            exp.StrToTime: _str_to_time,
    +310            exp.StrToUnix: _str_to_unix,
    +311            exp.StructExtract: struct_extract_sql,
    +312            exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}",
    +313            exp.TimeStrToDate: rename_func("TO_DATE"),
    +314            exp.TimeStrToTime: timestrtotime_sql,
    +315            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    +316            exp.TimeToStr: _time_to_str,
    +317            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    +318            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    +319            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +320            exp.TsOrDsToDate: _to_date_sql,
    +321            exp.TryCast: no_trycast_sql,
    +322            exp.UnixToStr: lambda self, e: self.func(
    +323                "FROM_UNIXTIME", e.this, _time_format(self, e)
    +324            ),
    +325            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    +326            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    +327            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    +328            exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}",
    +329            exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"),
    +330            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    +331            exp.LastDateOfMonth: rename_func("LAST_DAY"),
    +332        }
    +333
    +334        PROPERTIES_LOCATION = {
    +335            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +336            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    +337            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    +338            exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA,
    +339        }
     340
    -341        def datatype_sql(self, expression):
    -342            if (
    -343                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    -344                and not expression.expressions
    -345            ):
    -346                expression = exp.DataType.build("text")
    -347            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    -348                expression = exp.DataType.build(expression.this)
    -349            return super().datatype_sql(expression)
    +341        def with_properties(self, properties):
    +342            return self.properties(
    +343                properties,
    +344                prefix=self.seg("TBLPROPERTIES"),
    +345            )
    +346
    +347        def datatype_sql(self, expression):
    +348            if (
    +349                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    +350                and not expression.expressions
    +351            ):
    +352                expression = exp.DataType.build("text")
    +353            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    +354                expression = exp.DataType.build(expression.this)
    +355            return super().datatype_sql(expression)
     
    @@ -1011,11 +1027,11 @@ Default: True
    -
    335        def with_properties(self, properties):
    -336            return self.properties(
    -337                properties,
    -338                prefix=self.seg("TBLPROPERTIES"),
    -339            )
    +            
    341        def with_properties(self, properties):
    +342            return self.properties(
    +343                properties,
    +344                prefix=self.seg("TBLPROPERTIES"),
    +345            )
     
    @@ -1033,15 +1049,15 @@ Default: True
    -
    341        def datatype_sql(self, expression):
    -342            if (
    -343                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    -344                and not expression.expressions
    -345            ):
    -346                expression = exp.DataType.build("text")
    -347            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    -348                expression = exp.DataType.build(expression.this)
    -349            return super().datatype_sql(expression)
    +            
    347        def datatype_sql(self, expression):
    +348            if (
    +349                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    +350                and not expression.expressions
    +351            ):
    +352                expression = exp.DataType.build("text")
    +353            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    +354                expression = exp.DataType.build(expression.this)
    +355            return super().datatype_sql(expression)
     
    @@ -1118,6 +1134,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -1219,6 +1236,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/mysql.html b/docs/sqlglot/dialects/mysql.html index 40d0aad..9ca1dd3 100644 --- a/docs/sqlglot/dialects/mysql.html +++ b/docs/sqlglot/dialects/mysql.html @@ -92,535 +92,540 @@
    4from sqlglot.dialects.dialect import ( 5 Dialect, 6 locate_to_strposition, - 7 no_ilike_sql, - 8 no_paren_current_date_sql, - 9 no_tablesample_sql, - 10 no_trycast_sql, - 11 rename_func, - 12 strposition_to_locate_sql, - 13) - 14from sqlglot.helper import seq_get - 15from sqlglot.tokens import TokenType - 16 + 7 min_or_least, + 8 no_ilike_sql, + 9 no_paren_current_date_sql, + 10 no_tablesample_sql, + 11 no_trycast_sql, + 12 rename_func, + 13 strposition_to_locate_sql, + 14) + 15from sqlglot.helper import seq_get + 16from sqlglot.tokens import TokenType 17 - 18def _show_parser(*args, **kwargs): - 19 def _parse(self): - 20 return self._parse_show_mysql(*args, **kwargs) - 21 - 22 return _parse - 23 + 18 + 19def _show_parser(*args, **kwargs): + 20 def _parse(self): + 21 return self._parse_show_mysql(*args, **kwargs) + 22 + 23 return _parse 24 - 25def _date_trunc_sql(self, expression): - 26 expr = self.sql(expression, "this") - 27 unit = expression.text("unit") - 28 - 29 if unit == "day": - 30 return f"DATE({expr})" - 31 - 32 if unit == "week": - 33 concat = f"CONCAT(YEAR({expr}), ' ', WEEK({expr}, 1), ' 1')" - 34 date_format = "%Y %u %w" - 35 elif unit == "month": - 36 concat = f"CONCAT(YEAR({expr}), ' ', MONTH({expr}), ' 1')" - 37 date_format = "%Y %c %e" - 38 elif unit == "quarter": - 39 concat = f"CONCAT(YEAR({expr}), ' ', QUARTER({expr}) * 3 - 2, ' 1')" - 40 date_format = "%Y %c %e" - 41 elif unit == "year": - 42 concat = f"CONCAT(YEAR({expr}), ' 1 1')" - 43 date_format = "%Y %c %e" - 44 else: - 45 self.unsupported(f"Unexpected interval unit: {unit}") - 46 return f"DATE({expr})" - 47 - 48 return f"STR_TO_DATE({concat}, '{date_format}')" - 49 + 25 + 26def _date_trunc_sql(self, expression): + 27 expr = self.sql(expression, "this") + 28 unit = expression.text("unit") + 29 + 30 if unit == "day": + 31 return f"DATE({expr})" + 32 + 33 if unit == "week": + 34 concat = f"CONCAT(YEAR({expr}), ' ', WEEK({expr}, 1), ' 1')" + 35 date_format = "%Y %u %w" + 36 elif unit == "month": + 37 concat = f"CONCAT(YEAR({expr}), ' ', MONTH({expr}), ' 1')" + 38 date_format = "%Y %c %e" + 39 elif unit == "quarter": + 40 concat = f"CONCAT(YEAR({expr}), ' ', QUARTER({expr}) * 3 - 2, ' 1')" + 41 date_format = "%Y %c %e" + 42 elif unit == "year": + 43 concat = f"CONCAT(YEAR({expr}), ' 1 1')" + 44 date_format = "%Y %c %e" + 45 else: + 46 self.unsupported(f"Unexpected interval unit: {unit}") + 47 return f"DATE({expr})" + 48 + 49 return f"STR_TO_DATE({concat}, '{date_format}')" 50 - 51def _str_to_date(args): - 52 date_format = MySQL.format_time(seq_get(args, 1)) - 53 return exp.StrToDate(this=seq_get(args, 0), format=date_format) - 54 + 51 + 52def _str_to_date(args): + 53 date_format = MySQL.format_time(seq_get(args, 1)) + 54 return exp.StrToDate(this=seq_get(args, 0), format=date_format) 55 - 56def _str_to_date_sql(self, expression): - 57 date_format = self.format_time(expression) - 58 return f"STR_TO_DATE({self.sql(expression.this)}, {date_format})" - 59 + 56 + 57def _str_to_date_sql(self, expression): + 58 date_format = self.format_time(expression) + 59 return f"STR_TO_DATE({self.sql(expression.this)}, {date_format})" 60 - 61def _trim_sql(self, expression): - 62 target = self.sql(expression, "this") - 63 trim_type = self.sql(expression, "position") - 64 remove_chars = self.sql(expression, "expression") - 65 - 66 # Use TRIM/LTRIM/RTRIM syntax if the expression isn't mysql-specific - 67 if not remove_chars: - 68 return self.trim_sql(expression) - 69 - 70 trim_type = f"{trim_type} " if trim_type else "" - 71 remove_chars = f"{remove_chars} " if remove_chars else "" - 72 from_part = "FROM " if trim_type or remove_chars else "" - 73 return f"TRIM({trim_type}{remove_chars}{from_part}{target})" - 74 + 61 + 62def _trim_sql(self, expression): + 63 target = self.sql(expression, "this") + 64 trim_type = self.sql(expression, "position") + 65 remove_chars = self.sql(expression, "expression") + 66 + 67 # Use TRIM/LTRIM/RTRIM syntax if the expression isn't mysql-specific + 68 if not remove_chars: + 69 return self.trim_sql(expression) + 70 + 71 trim_type = f"{trim_type} " if trim_type else "" + 72 remove_chars = f"{remove_chars} " if remove_chars else "" + 73 from_part = "FROM " if trim_type or remove_chars else "" + 74 return f"TRIM({trim_type}{remove_chars}{from_part}{target})" 75 - 76def _date_add(expression_class): - 77 def func(args): - 78 interval = seq_get(args, 1) - 79 return expression_class( - 80 this=seq_get(args, 0), - 81 expression=interval.this, - 82 unit=exp.Literal.string(interval.text("unit").lower()), - 83 ) - 84 - 85 return func - 86 + 76 + 77def _date_add(expression_class): + 78 def func(args): + 79 interval = seq_get(args, 1) + 80 return expression_class( + 81 this=seq_get(args, 0), + 82 expression=interval.this, + 83 unit=exp.Literal.string(interval.text("unit").lower()), + 84 ) + 85 + 86 return func 87 - 88def _date_add_sql(kind): - 89 def func(self, expression): - 90 this = self.sql(expression, "this") - 91 unit = expression.text("unit").upper() or "DAY" - 92 return ( - 93 f"DATE_{kind}({this}, {self.sql(exp.Interval(this=expression.expression, unit=unit))})" - 94 ) - 95 - 96 return func - 97 + 88 + 89def _date_add_sql(kind): + 90 def func(self, expression): + 91 this = self.sql(expression, "this") + 92 unit = expression.text("unit").upper() or "DAY" + 93 return ( + 94 f"DATE_{kind}({this}, {self.sql(exp.Interval(this=expression.expression, unit=unit))})" + 95 ) + 96 + 97 return func 98 - 99class MySQL(Dialect): -100 time_format = "'%Y-%m-%d %T'" -101 -102 # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions -103 time_mapping = { -104 "%M": "%B", -105 "%c": "%-m", -106 "%e": "%-d", -107 "%h": "%I", -108 "%i": "%M", -109 "%s": "%S", -110 "%S": "%S", -111 "%u": "%W", -112 "%k": "%-H", -113 "%l": "%-I", -114 "%T": "%H:%M:%S", -115 } -116 -117 class Tokenizer(tokens.Tokenizer): -118 QUOTES = ["'", '"'] -119 COMMENTS = ["--", "#", ("/*", "*/")] -120 IDENTIFIERS = ["`"] -121 STRING_ESCAPES = ["'", "\\"] -122 BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")] -123 HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")] -124 -125 KEYWORDS = { -126 **tokens.Tokenizer.KEYWORDS, -127 "MEDIUMTEXT": TokenType.MEDIUMTEXT, -128 "LONGTEXT": TokenType.LONGTEXT, -129 "MEDIUMBLOB": TokenType.MEDIUMBLOB, -130 "LONGBLOB": TokenType.LONGBLOB, -131 "START": TokenType.BEGIN, -132 "SEPARATOR": TokenType.SEPARATOR, -133 "_ARMSCII8": TokenType.INTRODUCER, -134 "_ASCII": TokenType.INTRODUCER, -135 "_BIG5": TokenType.INTRODUCER, -136 "_BINARY": TokenType.INTRODUCER, -137 "_CP1250": TokenType.INTRODUCER, -138 "_CP1251": TokenType.INTRODUCER, -139 "_CP1256": TokenType.INTRODUCER, -140 "_CP1257": TokenType.INTRODUCER, -141 "_CP850": TokenType.INTRODUCER, -142 "_CP852": TokenType.INTRODUCER, -143 "_CP866": TokenType.INTRODUCER, -144 "_CP932": TokenType.INTRODUCER, -145 "_DEC8": TokenType.INTRODUCER, -146 "_EUCJPMS": TokenType.INTRODUCER, -147 "_EUCKR": TokenType.INTRODUCER, -148 "_GB18030": TokenType.INTRODUCER, -149 "_GB2312": TokenType.INTRODUCER, -150 "_GBK": TokenType.INTRODUCER, -151 "_GEOSTD8": TokenType.INTRODUCER, -152 "_GREEK": TokenType.INTRODUCER, -153 "_HEBREW": TokenType.INTRODUCER, -154 "_HP8": TokenType.INTRODUCER, -155 "_KEYBCS2": TokenType.INTRODUCER, -156 "_KOI8R": TokenType.INTRODUCER, -157 "_KOI8U": TokenType.INTRODUCER, -158 "_LATIN1": TokenType.INTRODUCER, -159 "_LATIN2": TokenType.INTRODUCER, -160 "_LATIN5": TokenType.INTRODUCER, -161 "_LATIN7": TokenType.INTRODUCER, -162 "_MACCE": TokenType.INTRODUCER, -163 "_MACROMAN": TokenType.INTRODUCER, -164 "_SJIS": TokenType.INTRODUCER, -165 "_SWE7": TokenType.INTRODUCER, -166 "_TIS620": TokenType.INTRODUCER, -167 "_UCS2": TokenType.INTRODUCER, -168 "_UJIS": TokenType.INTRODUCER, -169 # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html -170 "_UTF8": TokenType.INTRODUCER, -171 "_UTF16": TokenType.INTRODUCER, -172 "_UTF16LE": TokenType.INTRODUCER, -173 "_UTF32": TokenType.INTRODUCER, -174 "_UTF8MB3": TokenType.INTRODUCER, -175 "_UTF8MB4": TokenType.INTRODUCER, -176 "@@": TokenType.SESSION_PARAMETER, -177 } -178 -179 COMMANDS = tokens.Tokenizer.COMMANDS - {TokenType.SET, TokenType.SHOW} -180 -181 class Parser(parser.Parser): -182 FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS, TokenType.SCHEMA} # type: ignore -183 -184 FUNCTIONS = { -185 **parser.Parser.FUNCTIONS, # type: ignore -186 "DATE_ADD": _date_add(exp.DateAdd), -187 "DATE_SUB": _date_add(exp.DateSub), -188 "STR_TO_DATE": _str_to_date, -189 "LOCATE": locate_to_strposition, -190 "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)), -191 "LEFT": lambda args: exp.Substring( -192 this=seq_get(args, 0), start=exp.Literal.number(1), length=seq_get(args, 1) -193 ), -194 } -195 -196 FUNCTION_PARSERS = { -197 **parser.Parser.FUNCTION_PARSERS, # type: ignore -198 "GROUP_CONCAT": lambda self: self.expression( -199 exp.GroupConcat, -200 this=self._parse_lambda(), -201 separator=self._match(TokenType.SEPARATOR) and self._parse_field(), -202 ), -203 } -204 -205 PROPERTY_PARSERS = { -206 **parser.Parser.PROPERTY_PARSERS, # type: ignore -207 "ENGINE": lambda self: self._parse_property_assignment(exp.EngineProperty), -208 } -209 -210 STATEMENT_PARSERS = { -211 **parser.Parser.STATEMENT_PARSERS, # type: ignore -212 TokenType.SHOW: lambda self: self._parse_show(), -213 TokenType.SET: lambda self: self._parse_set(), -214 } -215 -216 SHOW_PARSERS = { -217 "BINARY LOGS": _show_parser("BINARY LOGS"), -218 "MASTER LOGS": _show_parser("BINARY LOGS"), -219 "BINLOG EVENTS": _show_parser("BINLOG EVENTS"), -220 "CHARACTER SET": _show_parser("CHARACTER SET"), -221 "CHARSET": _show_parser("CHARACTER SET"), -222 "COLLATION": _show_parser("COLLATION"), -223 "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True), -224 "COLUMNS": _show_parser("COLUMNS", target="FROM"), -225 "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True), -226 "CREATE EVENT": _show_parser("CREATE EVENT", target=True), -227 "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True), -228 "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True), -229 "CREATE TABLE": _show_parser("CREATE TABLE", target=True), -230 "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True), -231 "CREATE VIEW": _show_parser("CREATE VIEW", target=True), -232 "DATABASES": _show_parser("DATABASES"), -233 "ENGINE": _show_parser("ENGINE", target=True), -234 "STORAGE ENGINES": _show_parser("ENGINES"), -235 "ENGINES": _show_parser("ENGINES"), -236 "ERRORS": _show_parser("ERRORS"), -237 "EVENTS": _show_parser("EVENTS"), -238 "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True), -239 "FUNCTION STATUS": _show_parser("FUNCTION STATUS"), -240 "GRANTS": _show_parser("GRANTS", target="FOR"), -241 "INDEX": _show_parser("INDEX", target="FROM"), -242 "MASTER STATUS": _show_parser("MASTER STATUS"), -243 "OPEN TABLES": _show_parser("OPEN TABLES"), -244 "PLUGINS": _show_parser("PLUGINS"), -245 "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True), -246 "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"), -247 "PRIVILEGES": _show_parser("PRIVILEGES"), -248 "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True), -249 "PROCESSLIST": _show_parser("PROCESSLIST"), -250 "PROFILE": _show_parser("PROFILE"), -251 "PROFILES": _show_parser("PROFILES"), -252 "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"), -253 "REPLICAS": _show_parser("REPLICAS"), -254 "SLAVE HOSTS": _show_parser("REPLICAS"), -255 "REPLICA STATUS": _show_parser("REPLICA STATUS"), -256 "SLAVE STATUS": _show_parser("REPLICA STATUS"), -257 "GLOBAL STATUS": _show_parser("STATUS", global_=True), -258 "SESSION STATUS": _show_parser("STATUS"), -259 "STATUS": _show_parser("STATUS"), -260 "TABLE STATUS": _show_parser("TABLE STATUS"), -261 "FULL TABLES": _show_parser("TABLES", full=True), -262 "TABLES": _show_parser("TABLES"), -263 "TRIGGERS": _show_parser("TRIGGERS"), -264 "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True), -265 "SESSION VARIABLES": _show_parser("VARIABLES"), -266 "VARIABLES": _show_parser("VARIABLES"), -267 "WARNINGS": _show_parser("WARNINGS"), -268 } -269 -270 SET_PARSERS = { -271 "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"), -272 "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"), -273 "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"), -274 "SESSION": lambda self: self._parse_set_item_assignment("SESSION"), -275 "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"), -276 "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"), -277 "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"), -278 "NAMES": lambda self: self._parse_set_item_names(), -279 "TRANSACTION": lambda self: self._parse_set_transaction(), -280 } -281 -282 PROFILE_TYPES = { -283 "ALL", -284 "BLOCK IO", -285 "CONTEXT SWITCHES", -286 "CPU", -287 "IPC", -288 "MEMORY", -289 "PAGE FAULTS", -290 "SOURCE", -291 "SWAPS", -292 } -293 -294 TRANSACTION_CHARACTERISTICS = { -295 "ISOLATION LEVEL REPEATABLE READ", -296 "ISOLATION LEVEL READ COMMITTED", -297 "ISOLATION LEVEL READ UNCOMMITTED", -298 "ISOLATION LEVEL SERIALIZABLE", -299 "READ WRITE", -300 "READ ONLY", -301 } -302 -303 def _parse_show_mysql(self, this, target=False, full=None, global_=None): -304 if target: -305 if isinstance(target, str): -306 self._match_text_seq(target) -307 target_id = self._parse_id_var() -308 else: -309 target_id = None -310 -311 log = self._parse_string() if self._match_text_seq("IN") else None -312 -313 if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}: -314 position = self._parse_number() if self._match_text_seq("FROM") else None -315 db = None -316 else: -317 position = None -318 db = self._parse_id_var() if self._match_text_seq("FROM") else None -319 -320 channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None -321 -322 like = self._parse_string() if self._match_text_seq("LIKE") else None -323 where = self._parse_where() + 99 +100class MySQL(Dialect): +101 time_format = "'%Y-%m-%d %T'" +102 +103 # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions +104 time_mapping = { +105 "%M": "%B", +106 "%c": "%-m", +107 "%e": "%-d", +108 "%h": "%I", +109 "%i": "%M", +110 "%s": "%S", +111 "%S": "%S", +112 "%u": "%W", +113 "%k": "%-H", +114 "%l": "%-I", +115 "%T": "%H:%M:%S", +116 } +117 +118 class Tokenizer(tokens.Tokenizer): +119 QUOTES = ["'", '"'] +120 COMMENTS = ["--", "#", ("/*", "*/")] +121 IDENTIFIERS = ["`"] +122 STRING_ESCAPES = ["'", "\\"] +123 BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")] +124 HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")] +125 +126 KEYWORDS = { +127 **tokens.Tokenizer.KEYWORDS, +128 "MEDIUMTEXT": TokenType.MEDIUMTEXT, +129 "LONGTEXT": TokenType.LONGTEXT, +130 "MEDIUMBLOB": TokenType.MEDIUMBLOB, +131 "LONGBLOB": TokenType.LONGBLOB, +132 "START": TokenType.BEGIN, +133 "SEPARATOR": TokenType.SEPARATOR, +134 "_ARMSCII8": TokenType.INTRODUCER, +135 "_ASCII": TokenType.INTRODUCER, +136 "_BIG5": TokenType.INTRODUCER, +137 "_BINARY": TokenType.INTRODUCER, +138 "_CP1250": TokenType.INTRODUCER, +139 "_CP1251": TokenType.INTRODUCER, +140 "_CP1256": TokenType.INTRODUCER, +141 "_CP1257": TokenType.INTRODUCER, +142 "_CP850": TokenType.INTRODUCER, +143 "_CP852": TokenType.INTRODUCER, +144 "_CP866": TokenType.INTRODUCER, +145 "_CP932": TokenType.INTRODUCER, +146 "_DEC8": TokenType.INTRODUCER, +147 "_EUCJPMS": TokenType.INTRODUCER, +148 "_EUCKR": TokenType.INTRODUCER, +149 "_GB18030": TokenType.INTRODUCER, +150 "_GB2312": TokenType.INTRODUCER, +151 "_GBK": TokenType.INTRODUCER, +152 "_GEOSTD8": TokenType.INTRODUCER, +153 "_GREEK": TokenType.INTRODUCER, +154 "_HEBREW": TokenType.INTRODUCER, +155 "_HP8": TokenType.INTRODUCER, +156 "_KEYBCS2": TokenType.INTRODUCER, +157 "_KOI8R": TokenType.INTRODUCER, +158 "_KOI8U": TokenType.INTRODUCER, +159 "_LATIN1": TokenType.INTRODUCER, +160 "_LATIN2": TokenType.INTRODUCER, +161 "_LATIN5": TokenType.INTRODUCER, +162 "_LATIN7": TokenType.INTRODUCER, +163 "_MACCE": TokenType.INTRODUCER, +164 "_MACROMAN": TokenType.INTRODUCER, +165 "_SJIS": TokenType.INTRODUCER, +166 "_SWE7": TokenType.INTRODUCER, +167 "_TIS620": TokenType.INTRODUCER, +168 "_UCS2": TokenType.INTRODUCER, +169 "_UJIS": TokenType.INTRODUCER, +170 # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html +171 "_UTF8": TokenType.INTRODUCER, +172 "_UTF16": TokenType.INTRODUCER, +173 "_UTF16LE": TokenType.INTRODUCER, +174 "_UTF32": TokenType.INTRODUCER, +175 "_UTF8MB3": TokenType.INTRODUCER, +176 "_UTF8MB4": TokenType.INTRODUCER, +177 "@@": TokenType.SESSION_PARAMETER, +178 } +179 +180 COMMANDS = tokens.Tokenizer.COMMANDS - {TokenType.SET, TokenType.SHOW} +181 +182 class Parser(parser.Parser): +183 FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS, TokenType.SCHEMA, TokenType.DATABASE} # type: ignore +184 +185 FUNCTIONS = { +186 **parser.Parser.FUNCTIONS, # type: ignore +187 "DATE_ADD": _date_add(exp.DateAdd), +188 "DATE_SUB": _date_add(exp.DateSub), +189 "STR_TO_DATE": _str_to_date, +190 "LOCATE": locate_to_strposition, +191 "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)), +192 "LEFT": lambda args: exp.Substring( +193 this=seq_get(args, 0), start=exp.Literal.number(1), length=seq_get(args, 1) +194 ), +195 } +196 +197 FUNCTION_PARSERS = { +198 **parser.Parser.FUNCTION_PARSERS, # type: ignore +199 "GROUP_CONCAT": lambda self: self.expression( +200 exp.GroupConcat, +201 this=self._parse_lambda(), +202 separator=self._match(TokenType.SEPARATOR) and self._parse_field(), +203 ), +204 } +205 +206 PROPERTY_PARSERS = { +207 **parser.Parser.PROPERTY_PARSERS, # type: ignore +208 "ENGINE": lambda self: self._parse_property_assignment(exp.EngineProperty), +209 } +210 +211 STATEMENT_PARSERS = { +212 **parser.Parser.STATEMENT_PARSERS, # type: ignore +213 TokenType.SHOW: lambda self: self._parse_show(), +214 TokenType.SET: lambda self: self._parse_set(), +215 } +216 +217 SHOW_PARSERS = { +218 "BINARY LOGS": _show_parser("BINARY LOGS"), +219 "MASTER LOGS": _show_parser("BINARY LOGS"), +220 "BINLOG EVENTS": _show_parser("BINLOG EVENTS"), +221 "CHARACTER SET": _show_parser("CHARACTER SET"), +222 "CHARSET": _show_parser("CHARACTER SET"), +223 "COLLATION": _show_parser("COLLATION"), +224 "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True), +225 "COLUMNS": _show_parser("COLUMNS", target="FROM"), +226 "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True), +227 "CREATE EVENT": _show_parser("CREATE EVENT", target=True), +228 "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True), +229 "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True), +230 "CREATE TABLE": _show_parser("CREATE TABLE", target=True), +231 "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True), +232 "CREATE VIEW": _show_parser("CREATE VIEW", target=True), +233 "DATABASES": _show_parser("DATABASES"), +234 "ENGINE": _show_parser("ENGINE", target=True), +235 "STORAGE ENGINES": _show_parser("ENGINES"), +236 "ENGINES": _show_parser("ENGINES"), +237 "ERRORS": _show_parser("ERRORS"), +238 "EVENTS": _show_parser("EVENTS"), +239 "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True), +240 "FUNCTION STATUS": _show_parser("FUNCTION STATUS"), +241 "GRANTS": _show_parser("GRANTS", target="FOR"), +242 "INDEX": _show_parser("INDEX", target="FROM"), +243 "MASTER STATUS": _show_parser("MASTER STATUS"), +244 "OPEN TABLES": _show_parser("OPEN TABLES"), +245 "PLUGINS": _show_parser("PLUGINS"), +246 "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True), +247 "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"), +248 "PRIVILEGES": _show_parser("PRIVILEGES"), +249 "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True), +250 "PROCESSLIST": _show_parser("PROCESSLIST"), +251 "PROFILE": _show_parser("PROFILE"), +252 "PROFILES": _show_parser("PROFILES"), +253 "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"), +254 "REPLICAS": _show_parser("REPLICAS"), +255 "SLAVE HOSTS": _show_parser("REPLICAS"), +256 "REPLICA STATUS": _show_parser("REPLICA STATUS"), +257 "SLAVE STATUS": _show_parser("REPLICA STATUS"), +258 "GLOBAL STATUS": _show_parser("STATUS", global_=True), +259 "SESSION STATUS": _show_parser("STATUS"), +260 "STATUS": _show_parser("STATUS"), +261 "TABLE STATUS": _show_parser("TABLE STATUS"), +262 "FULL TABLES": _show_parser("TABLES", full=True), +263 "TABLES": _show_parser("TABLES"), +264 "TRIGGERS": _show_parser("TRIGGERS"), +265 "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True), +266 "SESSION VARIABLES": _show_parser("VARIABLES"), +267 "VARIABLES": _show_parser("VARIABLES"), +268 "WARNINGS": _show_parser("WARNINGS"), +269 } +270 +271 SET_PARSERS = { +272 "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"), +273 "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"), +274 "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"), +275 "SESSION": lambda self: self._parse_set_item_assignment("SESSION"), +276 "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"), +277 "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"), +278 "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"), +279 "NAMES": lambda self: self._parse_set_item_names(), +280 "TRANSACTION": lambda self: self._parse_set_transaction(), +281 } +282 +283 PROFILE_TYPES = { +284 "ALL", +285 "BLOCK IO", +286 "CONTEXT SWITCHES", +287 "CPU", +288 "IPC", +289 "MEMORY", +290 "PAGE FAULTS", +291 "SOURCE", +292 "SWAPS", +293 } +294 +295 TRANSACTION_CHARACTERISTICS = { +296 "ISOLATION LEVEL REPEATABLE READ", +297 "ISOLATION LEVEL READ COMMITTED", +298 "ISOLATION LEVEL READ UNCOMMITTED", +299 "ISOLATION LEVEL SERIALIZABLE", +300 "READ WRITE", +301 "READ ONLY", +302 } +303 +304 INTEGER_DIVISION = False +305 +306 def _parse_show_mysql(self, this, target=False, full=None, global_=None): +307 if target: +308 if isinstance(target, str): +309 self._match_text_seq(target) +310 target_id = self._parse_id_var() +311 else: +312 target_id = None +313 +314 log = self._parse_string() if self._match_text_seq("IN") else None +315 +316 if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}: +317 position = self._parse_number() if self._match_text_seq("FROM") else None +318 db = None +319 else: +320 position = None +321 db = self._parse_id_var() if self._match_text_seq("FROM") else None +322 +323 channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None 324 -325 if this == "PROFILE": -326 types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES)) -327 query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None -328 offset = self._parse_number() if self._match_text_seq("OFFSET") else None -329 limit = self._parse_number() if self._match_text_seq("LIMIT") else None -330 else: -331 types, query = None, None -332 offset, limit = self._parse_oldstyle_limit() -333 -334 mutex = True if self._match_text_seq("MUTEX") else None -335 mutex = False if self._match_text_seq("STATUS") else mutex +325 like = self._parse_string() if self._match_text_seq("LIKE") else None +326 where = self._parse_where() +327 +328 if this == "PROFILE": +329 types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES)) +330 query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None +331 offset = self._parse_number() if self._match_text_seq("OFFSET") else None +332 limit = self._parse_number() if self._match_text_seq("LIMIT") else None +333 else: +334 types, query = None, None +335 offset, limit = self._parse_oldstyle_limit() 336 -337 return self.expression( -338 exp.Show, -339 this=this, -340 target=target_id, -341 full=full, -342 log=log, -343 position=position, -344 db=db, -345 channel=channel, -346 like=like, -347 where=where, -348 types=types, -349 query=query, -350 offset=offset, -351 limit=limit, -352 mutex=mutex, -353 **{"global": global_}, -354 ) -355 -356 def _parse_var_from_options(self, options): -357 for option in options: -358 if self._match_text_seq(*option.split(" ")): -359 return exp.Var(this=option) -360 return None -361 -362 def _parse_oldstyle_limit(self): -363 limit = None -364 offset = None -365 if self._match_text_seq("LIMIT"): -366 parts = self._parse_csv(self._parse_number) -367 if len(parts) == 1: -368 limit = parts[0] -369 elif len(parts) == 2: -370 limit = parts[1] -371 offset = parts[0] -372 return offset, limit -373 -374 def _default_parse_set_item(self): -375 return self._parse_set_item_assignment(kind=None) +337 mutex = True if self._match_text_seq("MUTEX") else None +338 mutex = False if self._match_text_seq("STATUS") else mutex +339 +340 return self.expression( +341 exp.Show, +342 this=this, +343 target=target_id, +344 full=full, +345 log=log, +346 position=position, +347 db=db, +348 channel=channel, +349 like=like, +350 where=where, +351 types=types, +352 query=query, +353 offset=offset, +354 limit=limit, +355 mutex=mutex, +356 **{"global": global_}, +357 ) +358 +359 def _parse_var_from_options(self, options): +360 for option in options: +361 if self._match_text_seq(*option.split(" ")): +362 return exp.Var(this=option) +363 return None +364 +365 def _parse_oldstyle_limit(self): +366 limit = None +367 offset = None +368 if self._match_text_seq("LIMIT"): +369 parts = self._parse_csv(self._parse_number) +370 if len(parts) == 1: +371 limit = parts[0] +372 elif len(parts) == 2: +373 limit = parts[1] +374 offset = parts[0] +375 return offset, limit 376 -377 def _parse_set_item_assignment(self, kind): -378 if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"): -379 return self._parse_set_transaction(global_=kind == "GLOBAL") -380 -381 left = self._parse_primary() or self._parse_id_var() -382 if not self._match(TokenType.EQ): -383 self.raise_error("Expected =") -384 right = self._parse_statement() or self._parse_id_var() -385 -386 this = self.expression( -387 exp.EQ, -388 this=left, -389 expression=right, -390 ) -391 -392 return self.expression( -393 exp.SetItem, -394 this=this, -395 kind=kind, -396 ) -397 -398 def _parse_set_item_charset(self, kind): -399 this = self._parse_string() or self._parse_id_var() +377 def _default_parse_set_item(self): +378 return self._parse_set_item_assignment(kind=None) +379 +380 def _parse_set_item_assignment(self, kind): +381 if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"): +382 return self._parse_set_transaction(global_=kind == "GLOBAL") +383 +384 left = self._parse_primary() or self._parse_id_var() +385 if not self._match(TokenType.EQ): +386 self.raise_error("Expected =") +387 right = self._parse_statement() or self._parse_id_var() +388 +389 this = self.expression( +390 exp.EQ, +391 this=left, +392 expression=right, +393 ) +394 +395 return self.expression( +396 exp.SetItem, +397 this=this, +398 kind=kind, +399 ) 400 -401 return self.expression( -402 exp.SetItem, -403 this=this, -404 kind=kind, -405 ) -406 -407 def _parse_set_item_names(self): -408 charset = self._parse_string() or self._parse_id_var() -409 if self._match_text_seq("COLLATE"): -410 collate = self._parse_string() or self._parse_id_var() -411 else: -412 collate = None -413 return self.expression( -414 exp.SetItem, -415 this=charset, -416 collate=collate, -417 kind="NAMES", -418 ) -419 -420 def _parse_set_transaction(self, global_=False): -421 self._match_text_seq("TRANSACTION") -422 characteristics = self._parse_csv( -423 lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS) -424 ) -425 return self.expression( -426 exp.SetItem, -427 expressions=characteristics, -428 kind="TRANSACTION", -429 **{"global": global_}, -430 ) -431 -432 class Generator(generator.Generator): -433 LOCKING_READS_SUPPORTED = True -434 NULL_ORDERING_SUPPORTED = False -435 -436 TRANSFORMS = { -437 **generator.Generator.TRANSFORMS, # type: ignore -438 exp.CurrentDate: no_paren_current_date_sql, -439 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", -440 exp.ILike: no_ilike_sql, -441 exp.TableSample: no_tablesample_sql, -442 exp.TryCast: no_trycast_sql, -443 exp.DateAdd: _date_add_sql("ADD"), -444 exp.DateSub: _date_add_sql("SUB"), -445 exp.DateTrunc: _date_trunc_sql, -446 exp.DayOfWeek: rename_func("DAYOFWEEK"), -447 exp.DayOfMonth: rename_func("DAYOFMONTH"), -448 exp.DayOfYear: rename_func("DAYOFYEAR"), -449 exp.WeekOfYear: rename_func("WEEKOFYEAR"), -450 exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""", -451 exp.StrToDate: _str_to_date_sql, -452 exp.StrToTime: _str_to_date_sql, -453 exp.Trim: _trim_sql, -454 exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), -455 exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), -456 exp.StrPosition: strposition_to_locate_sql, -457 } -458 -459 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() -460 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) -461 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) -462 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) -463 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) -464 -465 PROPERTIES_LOCATION = { -466 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -467 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, -468 } +401 def _parse_set_item_charset(self, kind): +402 this = self._parse_string() or self._parse_id_var() +403 +404 return self.expression( +405 exp.SetItem, +406 this=this, +407 kind=kind, +408 ) +409 +410 def _parse_set_item_names(self): +411 charset = self._parse_string() or self._parse_id_var() +412 if self._match_text_seq("COLLATE"): +413 collate = self._parse_string() or self._parse_id_var() +414 else: +415 collate = None +416 return self.expression( +417 exp.SetItem, +418 this=charset, +419 collate=collate, +420 kind="NAMES", +421 ) +422 +423 def _parse_set_transaction(self, global_=False): +424 self._match_text_seq("TRANSACTION") +425 characteristics = self._parse_csv( +426 lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS) +427 ) +428 return self.expression( +429 exp.SetItem, +430 expressions=characteristics, +431 kind="TRANSACTION", +432 **{"global": global_}, +433 ) +434 +435 class Generator(generator.Generator): +436 LOCKING_READS_SUPPORTED = True +437 NULL_ORDERING_SUPPORTED = False +438 INTEGER_DIVISION = False +439 +440 TRANSFORMS = { +441 **generator.Generator.TRANSFORMS, # type: ignore +442 exp.CurrentDate: no_paren_current_date_sql, +443 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", +444 exp.ILike: no_ilike_sql, +445 exp.Min: min_or_least, +446 exp.TableSample: no_tablesample_sql, +447 exp.TryCast: no_trycast_sql, +448 exp.DateAdd: _date_add_sql("ADD"), +449 exp.DateSub: _date_add_sql("SUB"), +450 exp.DateTrunc: _date_trunc_sql, +451 exp.DayOfWeek: rename_func("DAYOFWEEK"), +452 exp.DayOfMonth: rename_func("DAYOFMONTH"), +453 exp.DayOfYear: rename_func("DAYOFYEAR"), +454 exp.WeekOfYear: rename_func("WEEKOFYEAR"), +455 exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""", +456 exp.StrToDate: _str_to_date_sql, +457 exp.StrToTime: _str_to_date_sql, +458 exp.Trim: _trim_sql, +459 exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), +460 exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), +461 exp.StrPosition: strposition_to_locate_sql, +462 } +463 +464 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() +465 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) +466 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) +467 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) +468 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) 469 -470 def show_sql(self, expression): -471 this = f" {expression.name}" -472 full = " FULL" if expression.args.get("full") else "" -473 global_ = " GLOBAL" if expression.args.get("global") else "" +470 PROPERTIES_LOCATION = { +471 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +472 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, +473 } 474 -475 target = self.sql(expression, "target") -476 target = f" {target}" if target else "" -477 if expression.name in {"COLUMNS", "INDEX"}: -478 target = f" FROM{target}" -479 elif expression.name == "GRANTS": -480 target = f" FOR{target}" -481 -482 db = self._prefixed_sql("FROM", expression, "db") -483 -484 like = self._prefixed_sql("LIKE", expression, "like") -485 where = self.sql(expression, "where") +475 def show_sql(self, expression): +476 this = f" {expression.name}" +477 full = " FULL" if expression.args.get("full") else "" +478 global_ = " GLOBAL" if expression.args.get("global") else "" +479 +480 target = self.sql(expression, "target") +481 target = f" {target}" if target else "" +482 if expression.name in {"COLUMNS", "INDEX"}: +483 target = f" FROM{target}" +484 elif expression.name == "GRANTS": +485 target = f" FOR{target}" 486 -487 types = self.expressions(expression, key="types") -488 types = f" {types}" if types else types -489 query = self._prefixed_sql("FOR QUERY", expression, "query") -490 -491 if expression.name == "PROFILE": -492 offset = self._prefixed_sql("OFFSET", expression, "offset") -493 limit = self._prefixed_sql("LIMIT", expression, "limit") -494 else: -495 offset = "" -496 limit = self._oldstyle_limit_sql(expression) -497 -498 log = self._prefixed_sql("IN", expression, "log") -499 position = self._prefixed_sql("FROM", expression, "position") -500 -501 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") +487 db = self._prefixed_sql("FROM", expression, "db") +488 +489 like = self._prefixed_sql("LIKE", expression, "like") +490 where = self.sql(expression, "where") +491 +492 types = self.expressions(expression, key="types") +493 types = f" {types}" if types else types +494 query = self._prefixed_sql("FOR QUERY", expression, "query") +495 +496 if expression.name == "PROFILE": +497 offset = self._prefixed_sql("OFFSET", expression, "offset") +498 limit = self._prefixed_sql("LIMIT", expression, "limit") +499 else: +500 offset = "" +501 limit = self._oldstyle_limit_sql(expression) 502 -503 if expression.name == "ENGINE": -504 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" -505 else: -506 mutex_or_status = "" +503 log = self._prefixed_sql("IN", expression, "log") +504 position = self._prefixed_sql("FROM", expression, "position") +505 +506 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") 507 -508 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" -509 -510 def _prefixed_sql(self, prefix, expression, arg): -511 sql = self.sql(expression, arg) -512 if not sql: -513 return "" -514 return f" {prefix} {sql}" -515 -516 def _oldstyle_limit_sql(self, expression): -517 limit = self.sql(expression, "limit") -518 offset = self.sql(expression, "offset") -519 if limit: -520 limit_offset = f"{offset}, {limit}" if offset else limit -521 return f" LIMIT {limit_offset}" -522 return "" -523 -524 def setitem_sql(self, expression): -525 kind = self.sql(expression, "kind") -526 kind = f"{kind} " if kind else "" -527 this = self.sql(expression, "this") -528 expressions = self.expressions(expression) -529 collate = self.sql(expression, "collate") -530 collate = f" COLLATE {collate}" if collate else "" -531 global_ = "GLOBAL " if expression.args.get("global") else "" -532 return f"{global_}{kind}{this}{expressions}{collate}" -533 -534 def set_sql(self, expression): -535 return f"SET {self.expressions(expression)}" +508 if expression.name == "ENGINE": +509 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" +510 else: +511 mutex_or_status = "" +512 +513 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" +514 +515 def _prefixed_sql(self, prefix, expression, arg): +516 sql = self.sql(expression, arg) +517 if not sql: +518 return "" +519 return f" {prefix} {sql}" +520 +521 def _oldstyle_limit_sql(self, expression): +522 limit = self.sql(expression, "limit") +523 offset = self.sql(expression, "offset") +524 if limit: +525 limit_offset = f"{offset}, {limit}" if offset else limit +526 return f" LIMIT {limit_offset}" +527 return "" +528 +529 def setitem_sql(self, expression): +530 kind = self.sql(expression, "kind") +531 kind = f"{kind} " if kind else "" +532 this = self.sql(expression, "this") +533 expressions = self.expressions(expression) +534 collate = self.sql(expression, "collate") +535 collate = f" COLLATE {collate}" if collate else "" +536 global_ = "GLOBAL " if expression.args.get("global") else "" +537 return f"{global_}{kind}{this}{expressions}{collate}" +538 +539 def set_sql(self, expression): +540 return f"SET {self.expressions(expression)}"
    @@ -636,443 +641,447 @@
    -
    100class MySQL(Dialect):
    -101    time_format = "'%Y-%m-%d %T'"
    -102
    -103    # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions
    -104    time_mapping = {
    -105        "%M": "%B",
    -106        "%c": "%-m",
    -107        "%e": "%-d",
    -108        "%h": "%I",
    -109        "%i": "%M",
    -110        "%s": "%S",
    -111        "%S": "%S",
    -112        "%u": "%W",
    -113        "%k": "%-H",
    -114        "%l": "%-I",
    -115        "%T": "%H:%M:%S",
    -116    }
    -117
    -118    class Tokenizer(tokens.Tokenizer):
    -119        QUOTES = ["'", '"']
    -120        COMMENTS = ["--", "#", ("/*", "*/")]
    -121        IDENTIFIERS = ["`"]
    -122        STRING_ESCAPES = ["'", "\\"]
    -123        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
    -124        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
    -125
    -126        KEYWORDS = {
    -127            **tokens.Tokenizer.KEYWORDS,
    -128            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
    -129            "LONGTEXT": TokenType.LONGTEXT,
    -130            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
    -131            "LONGBLOB": TokenType.LONGBLOB,
    -132            "START": TokenType.BEGIN,
    -133            "SEPARATOR": TokenType.SEPARATOR,
    -134            "_ARMSCII8": TokenType.INTRODUCER,
    -135            "_ASCII": TokenType.INTRODUCER,
    -136            "_BIG5": TokenType.INTRODUCER,
    -137            "_BINARY": TokenType.INTRODUCER,
    -138            "_CP1250": TokenType.INTRODUCER,
    -139            "_CP1251": TokenType.INTRODUCER,
    -140            "_CP1256": TokenType.INTRODUCER,
    -141            "_CP1257": TokenType.INTRODUCER,
    -142            "_CP850": TokenType.INTRODUCER,
    -143            "_CP852": TokenType.INTRODUCER,
    -144            "_CP866": TokenType.INTRODUCER,
    -145            "_CP932": TokenType.INTRODUCER,
    -146            "_DEC8": TokenType.INTRODUCER,
    -147            "_EUCJPMS": TokenType.INTRODUCER,
    -148            "_EUCKR": TokenType.INTRODUCER,
    -149            "_GB18030": TokenType.INTRODUCER,
    -150            "_GB2312": TokenType.INTRODUCER,
    -151            "_GBK": TokenType.INTRODUCER,
    -152            "_GEOSTD8": TokenType.INTRODUCER,
    -153            "_GREEK": TokenType.INTRODUCER,
    -154            "_HEBREW": TokenType.INTRODUCER,
    -155            "_HP8": TokenType.INTRODUCER,
    -156            "_KEYBCS2": TokenType.INTRODUCER,
    -157            "_KOI8R": TokenType.INTRODUCER,
    -158            "_KOI8U": TokenType.INTRODUCER,
    -159            "_LATIN1": TokenType.INTRODUCER,
    -160            "_LATIN2": TokenType.INTRODUCER,
    -161            "_LATIN5": TokenType.INTRODUCER,
    -162            "_LATIN7": TokenType.INTRODUCER,
    -163            "_MACCE": TokenType.INTRODUCER,
    -164            "_MACROMAN": TokenType.INTRODUCER,
    -165            "_SJIS": TokenType.INTRODUCER,
    -166            "_SWE7": TokenType.INTRODUCER,
    -167            "_TIS620": TokenType.INTRODUCER,
    -168            "_UCS2": TokenType.INTRODUCER,
    -169            "_UJIS": TokenType.INTRODUCER,
    -170            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
    -171            "_UTF8": TokenType.INTRODUCER,
    -172            "_UTF16": TokenType.INTRODUCER,
    -173            "_UTF16LE": TokenType.INTRODUCER,
    -174            "_UTF32": TokenType.INTRODUCER,
    -175            "_UTF8MB3": TokenType.INTRODUCER,
    -176            "_UTF8MB4": TokenType.INTRODUCER,
    -177            "@@": TokenType.SESSION_PARAMETER,
    -178        }
    -179
    -180        COMMANDS = tokens.Tokenizer.COMMANDS - {TokenType.SET, TokenType.SHOW}
    -181
    -182    class Parser(parser.Parser):
    -183        FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS, TokenType.SCHEMA}  # type: ignore
    -184
    -185        FUNCTIONS = {
    -186            **parser.Parser.FUNCTIONS,  # type: ignore
    -187            "DATE_ADD": _date_add(exp.DateAdd),
    -188            "DATE_SUB": _date_add(exp.DateSub),
    -189            "STR_TO_DATE": _str_to_date,
    -190            "LOCATE": locate_to_strposition,
    -191            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
    -192            "LEFT": lambda args: exp.Substring(
    -193                this=seq_get(args, 0), start=exp.Literal.number(1), length=seq_get(args, 1)
    -194            ),
    -195        }
    -196
    -197        FUNCTION_PARSERS = {
    -198            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    -199            "GROUP_CONCAT": lambda self: self.expression(
    -200                exp.GroupConcat,
    -201                this=self._parse_lambda(),
    -202                separator=self._match(TokenType.SEPARATOR) and self._parse_field(),
    -203            ),
    -204        }
    -205
    -206        PROPERTY_PARSERS = {
    -207            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    -208            "ENGINE": lambda self: self._parse_property_assignment(exp.EngineProperty),
    -209        }
    -210
    -211        STATEMENT_PARSERS = {
    -212            **parser.Parser.STATEMENT_PARSERS,  # type: ignore
    -213            TokenType.SHOW: lambda self: self._parse_show(),
    -214            TokenType.SET: lambda self: self._parse_set(),
    -215        }
    -216
    -217        SHOW_PARSERS = {
    -218            "BINARY LOGS": _show_parser("BINARY LOGS"),
    -219            "MASTER LOGS": _show_parser("BINARY LOGS"),
    -220            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    -221            "CHARACTER SET": _show_parser("CHARACTER SET"),
    -222            "CHARSET": _show_parser("CHARACTER SET"),
    -223            "COLLATION": _show_parser("COLLATION"),
    -224            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    -225            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    -226            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    -227            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    -228            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    -229            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    -230            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    -231            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    -232            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    -233            "DATABASES": _show_parser("DATABASES"),
    -234            "ENGINE": _show_parser("ENGINE", target=True),
    -235            "STORAGE ENGINES": _show_parser("ENGINES"),
    -236            "ENGINES": _show_parser("ENGINES"),
    -237            "ERRORS": _show_parser("ERRORS"),
    -238            "EVENTS": _show_parser("EVENTS"),
    -239            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    -240            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    -241            "GRANTS": _show_parser("GRANTS", target="FOR"),
    -242            "INDEX": _show_parser("INDEX", target="FROM"),
    -243            "MASTER STATUS": _show_parser("MASTER STATUS"),
    -244            "OPEN TABLES": _show_parser("OPEN TABLES"),
    -245            "PLUGINS": _show_parser("PLUGINS"),
    -246            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    -247            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    -248            "PRIVILEGES": _show_parser("PRIVILEGES"),
    -249            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    -250            "PROCESSLIST": _show_parser("PROCESSLIST"),
    -251            "PROFILE": _show_parser("PROFILE"),
    -252            "PROFILES": _show_parser("PROFILES"),
    -253            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    -254            "REPLICAS": _show_parser("REPLICAS"),
    -255            "SLAVE HOSTS": _show_parser("REPLICAS"),
    -256            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    -257            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    -258            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    -259            "SESSION STATUS": _show_parser("STATUS"),
    -260            "STATUS": _show_parser("STATUS"),
    -261            "TABLE STATUS": _show_parser("TABLE STATUS"),
    -262            "FULL TABLES": _show_parser("TABLES", full=True),
    -263            "TABLES": _show_parser("TABLES"),
    -264            "TRIGGERS": _show_parser("TRIGGERS"),
    -265            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    -266            "SESSION VARIABLES": _show_parser("VARIABLES"),
    -267            "VARIABLES": _show_parser("VARIABLES"),
    -268            "WARNINGS": _show_parser("WARNINGS"),
    -269        }
    -270
    -271        SET_PARSERS = {
    -272            "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"),
    -273            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    -274            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    -275            "SESSION": lambda self: self._parse_set_item_assignment("SESSION"),
    -276            "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"),
    -277            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    -278            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    -279            "NAMES": lambda self: self._parse_set_item_names(),
    -280            "TRANSACTION": lambda self: self._parse_set_transaction(),
    -281        }
    -282
    -283        PROFILE_TYPES = {
    -284            "ALL",
    -285            "BLOCK IO",
    -286            "CONTEXT SWITCHES",
    -287            "CPU",
    -288            "IPC",
    -289            "MEMORY",
    -290            "PAGE FAULTS",
    -291            "SOURCE",
    -292            "SWAPS",
    -293        }
    -294
    -295        TRANSACTION_CHARACTERISTICS = {
    -296            "ISOLATION LEVEL REPEATABLE READ",
    -297            "ISOLATION LEVEL READ COMMITTED",
    -298            "ISOLATION LEVEL READ UNCOMMITTED",
    -299            "ISOLATION LEVEL SERIALIZABLE",
    -300            "READ WRITE",
    -301            "READ ONLY",
    -302        }
    -303
    -304        def _parse_show_mysql(self, this, target=False, full=None, global_=None):
    -305            if target:
    -306                if isinstance(target, str):
    -307                    self._match_text_seq(target)
    -308                target_id = self._parse_id_var()
    -309            else:
    -310                target_id = None
    -311
    -312            log = self._parse_string() if self._match_text_seq("IN") else None
    -313
    -314            if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}:
    -315                position = self._parse_number() if self._match_text_seq("FROM") else None
    -316                db = None
    -317            else:
    -318                position = None
    -319                db = self._parse_id_var() if self._match_text_seq("FROM") else None
    -320
    -321            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
    -322
    -323            like = self._parse_string() if self._match_text_seq("LIKE") else None
    -324            where = self._parse_where()
    +            
    101class MySQL(Dialect):
    +102    time_format = "'%Y-%m-%d %T'"
    +103
    +104    # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions
    +105    time_mapping = {
    +106        "%M": "%B",
    +107        "%c": "%-m",
    +108        "%e": "%-d",
    +109        "%h": "%I",
    +110        "%i": "%M",
    +111        "%s": "%S",
    +112        "%S": "%S",
    +113        "%u": "%W",
    +114        "%k": "%-H",
    +115        "%l": "%-I",
    +116        "%T": "%H:%M:%S",
    +117    }
    +118
    +119    class Tokenizer(tokens.Tokenizer):
    +120        QUOTES = ["'", '"']
    +121        COMMENTS = ["--", "#", ("/*", "*/")]
    +122        IDENTIFIERS = ["`"]
    +123        STRING_ESCAPES = ["'", "\\"]
    +124        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
    +125        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
    +126
    +127        KEYWORDS = {
    +128            **tokens.Tokenizer.KEYWORDS,
    +129            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
    +130            "LONGTEXT": TokenType.LONGTEXT,
    +131            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
    +132            "LONGBLOB": TokenType.LONGBLOB,
    +133            "START": TokenType.BEGIN,
    +134            "SEPARATOR": TokenType.SEPARATOR,
    +135            "_ARMSCII8": TokenType.INTRODUCER,
    +136            "_ASCII": TokenType.INTRODUCER,
    +137            "_BIG5": TokenType.INTRODUCER,
    +138            "_BINARY": TokenType.INTRODUCER,
    +139            "_CP1250": TokenType.INTRODUCER,
    +140            "_CP1251": TokenType.INTRODUCER,
    +141            "_CP1256": TokenType.INTRODUCER,
    +142            "_CP1257": TokenType.INTRODUCER,
    +143            "_CP850": TokenType.INTRODUCER,
    +144            "_CP852": TokenType.INTRODUCER,
    +145            "_CP866": TokenType.INTRODUCER,
    +146            "_CP932": TokenType.INTRODUCER,
    +147            "_DEC8": TokenType.INTRODUCER,
    +148            "_EUCJPMS": TokenType.INTRODUCER,
    +149            "_EUCKR": TokenType.INTRODUCER,
    +150            "_GB18030": TokenType.INTRODUCER,
    +151            "_GB2312": TokenType.INTRODUCER,
    +152            "_GBK": TokenType.INTRODUCER,
    +153            "_GEOSTD8": TokenType.INTRODUCER,
    +154            "_GREEK": TokenType.INTRODUCER,
    +155            "_HEBREW": TokenType.INTRODUCER,
    +156            "_HP8": TokenType.INTRODUCER,
    +157            "_KEYBCS2": TokenType.INTRODUCER,
    +158            "_KOI8R": TokenType.INTRODUCER,
    +159            "_KOI8U": TokenType.INTRODUCER,
    +160            "_LATIN1": TokenType.INTRODUCER,
    +161            "_LATIN2": TokenType.INTRODUCER,
    +162            "_LATIN5": TokenType.INTRODUCER,
    +163            "_LATIN7": TokenType.INTRODUCER,
    +164            "_MACCE": TokenType.INTRODUCER,
    +165            "_MACROMAN": TokenType.INTRODUCER,
    +166            "_SJIS": TokenType.INTRODUCER,
    +167            "_SWE7": TokenType.INTRODUCER,
    +168            "_TIS620": TokenType.INTRODUCER,
    +169            "_UCS2": TokenType.INTRODUCER,
    +170            "_UJIS": TokenType.INTRODUCER,
    +171            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
    +172            "_UTF8": TokenType.INTRODUCER,
    +173            "_UTF16": TokenType.INTRODUCER,
    +174            "_UTF16LE": TokenType.INTRODUCER,
    +175            "_UTF32": TokenType.INTRODUCER,
    +176            "_UTF8MB3": TokenType.INTRODUCER,
    +177            "_UTF8MB4": TokenType.INTRODUCER,
    +178            "@@": TokenType.SESSION_PARAMETER,
    +179        }
    +180
    +181        COMMANDS = tokens.Tokenizer.COMMANDS - {TokenType.SET, TokenType.SHOW}
    +182
    +183    class Parser(parser.Parser):
    +184        FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS, TokenType.SCHEMA, TokenType.DATABASE}  # type: ignore
    +185
    +186        FUNCTIONS = {
    +187            **parser.Parser.FUNCTIONS,  # type: ignore
    +188            "DATE_ADD": _date_add(exp.DateAdd),
    +189            "DATE_SUB": _date_add(exp.DateSub),
    +190            "STR_TO_DATE": _str_to_date,
    +191            "LOCATE": locate_to_strposition,
    +192            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
    +193            "LEFT": lambda args: exp.Substring(
    +194                this=seq_get(args, 0), start=exp.Literal.number(1), length=seq_get(args, 1)
    +195            ),
    +196        }
    +197
    +198        FUNCTION_PARSERS = {
    +199            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    +200            "GROUP_CONCAT": lambda self: self.expression(
    +201                exp.GroupConcat,
    +202                this=self._parse_lambda(),
    +203                separator=self._match(TokenType.SEPARATOR) and self._parse_field(),
    +204            ),
    +205        }
    +206
    +207        PROPERTY_PARSERS = {
    +208            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    +209            "ENGINE": lambda self: self._parse_property_assignment(exp.EngineProperty),
    +210        }
    +211
    +212        STATEMENT_PARSERS = {
    +213            **parser.Parser.STATEMENT_PARSERS,  # type: ignore
    +214            TokenType.SHOW: lambda self: self._parse_show(),
    +215            TokenType.SET: lambda self: self._parse_set(),
    +216        }
    +217
    +218        SHOW_PARSERS = {
    +219            "BINARY LOGS": _show_parser("BINARY LOGS"),
    +220            "MASTER LOGS": _show_parser("BINARY LOGS"),
    +221            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    +222            "CHARACTER SET": _show_parser("CHARACTER SET"),
    +223            "CHARSET": _show_parser("CHARACTER SET"),
    +224            "COLLATION": _show_parser("COLLATION"),
    +225            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    +226            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    +227            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    +228            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    +229            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    +230            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    +231            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    +232            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    +233            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    +234            "DATABASES": _show_parser("DATABASES"),
    +235            "ENGINE": _show_parser("ENGINE", target=True),
    +236            "STORAGE ENGINES": _show_parser("ENGINES"),
    +237            "ENGINES": _show_parser("ENGINES"),
    +238            "ERRORS": _show_parser("ERRORS"),
    +239            "EVENTS": _show_parser("EVENTS"),
    +240            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    +241            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    +242            "GRANTS": _show_parser("GRANTS", target="FOR"),
    +243            "INDEX": _show_parser("INDEX", target="FROM"),
    +244            "MASTER STATUS": _show_parser("MASTER STATUS"),
    +245            "OPEN TABLES": _show_parser("OPEN TABLES"),
    +246            "PLUGINS": _show_parser("PLUGINS"),
    +247            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    +248            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    +249            "PRIVILEGES": _show_parser("PRIVILEGES"),
    +250            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    +251            "PROCESSLIST": _show_parser("PROCESSLIST"),
    +252            "PROFILE": _show_parser("PROFILE"),
    +253            "PROFILES": _show_parser("PROFILES"),
    +254            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    +255            "REPLICAS": _show_parser("REPLICAS"),
    +256            "SLAVE HOSTS": _show_parser("REPLICAS"),
    +257            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    +258            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    +259            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    +260            "SESSION STATUS": _show_parser("STATUS"),
    +261            "STATUS": _show_parser("STATUS"),
    +262            "TABLE STATUS": _show_parser("TABLE STATUS"),
    +263            "FULL TABLES": _show_parser("TABLES", full=True),
    +264            "TABLES": _show_parser("TABLES"),
    +265            "TRIGGERS": _show_parser("TRIGGERS"),
    +266            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    +267            "SESSION VARIABLES": _show_parser("VARIABLES"),
    +268            "VARIABLES": _show_parser("VARIABLES"),
    +269            "WARNINGS": _show_parser("WARNINGS"),
    +270        }
    +271
    +272        SET_PARSERS = {
    +273            "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"),
    +274            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    +275            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    +276            "SESSION": lambda self: self._parse_set_item_assignment("SESSION"),
    +277            "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"),
    +278            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    +279            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    +280            "NAMES": lambda self: self._parse_set_item_names(),
    +281            "TRANSACTION": lambda self: self._parse_set_transaction(),
    +282        }
    +283
    +284        PROFILE_TYPES = {
    +285            "ALL",
    +286            "BLOCK IO",
    +287            "CONTEXT SWITCHES",
    +288            "CPU",
    +289            "IPC",
    +290            "MEMORY",
    +291            "PAGE FAULTS",
    +292            "SOURCE",
    +293            "SWAPS",
    +294        }
    +295
    +296        TRANSACTION_CHARACTERISTICS = {
    +297            "ISOLATION LEVEL REPEATABLE READ",
    +298            "ISOLATION LEVEL READ COMMITTED",
    +299            "ISOLATION LEVEL READ UNCOMMITTED",
    +300            "ISOLATION LEVEL SERIALIZABLE",
    +301            "READ WRITE",
    +302            "READ ONLY",
    +303        }
    +304
    +305        INTEGER_DIVISION = False
    +306
    +307        def _parse_show_mysql(self, this, target=False, full=None, global_=None):
    +308            if target:
    +309                if isinstance(target, str):
    +310                    self._match_text_seq(target)
    +311                target_id = self._parse_id_var()
    +312            else:
    +313                target_id = None
    +314
    +315            log = self._parse_string() if self._match_text_seq("IN") else None
    +316
    +317            if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}:
    +318                position = self._parse_number() if self._match_text_seq("FROM") else None
    +319                db = None
    +320            else:
    +321                position = None
    +322                db = self._parse_id_var() if self._match_text_seq("FROM") else None
    +323
    +324            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
     325
    -326            if this == "PROFILE":
    -327                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    -328                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    -329                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    -330                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    -331            else:
    -332                types, query = None, None
    -333                offset, limit = self._parse_oldstyle_limit()
    -334
    -335            mutex = True if self._match_text_seq("MUTEX") else None
    -336            mutex = False if self._match_text_seq("STATUS") else mutex
    +326            like = self._parse_string() if self._match_text_seq("LIKE") else None
    +327            where = self._parse_where()
    +328
    +329            if this == "PROFILE":
    +330                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    +331                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    +332                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    +333                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    +334            else:
    +335                types, query = None, None
    +336                offset, limit = self._parse_oldstyle_limit()
     337
    -338            return self.expression(
    -339                exp.Show,
    -340                this=this,
    -341                target=target_id,
    -342                full=full,
    -343                log=log,
    -344                position=position,
    -345                db=db,
    -346                channel=channel,
    -347                like=like,
    -348                where=where,
    -349                types=types,
    -350                query=query,
    -351                offset=offset,
    -352                limit=limit,
    -353                mutex=mutex,
    -354                **{"global": global_},
    -355            )
    -356
    -357        def _parse_var_from_options(self, options):
    -358            for option in options:
    -359                if self._match_text_seq(*option.split(" ")):
    -360                    return exp.Var(this=option)
    -361            return None
    -362
    -363        def _parse_oldstyle_limit(self):
    -364            limit = None
    -365            offset = None
    -366            if self._match_text_seq("LIMIT"):
    -367                parts = self._parse_csv(self._parse_number)
    -368                if len(parts) == 1:
    -369                    limit = parts[0]
    -370                elif len(parts) == 2:
    -371                    limit = parts[1]
    -372                    offset = parts[0]
    -373            return offset, limit
    -374
    -375        def _default_parse_set_item(self):
    -376            return self._parse_set_item_assignment(kind=None)
    +338            mutex = True if self._match_text_seq("MUTEX") else None
    +339            mutex = False if self._match_text_seq("STATUS") else mutex
    +340
    +341            return self.expression(
    +342                exp.Show,
    +343                this=this,
    +344                target=target_id,
    +345                full=full,
    +346                log=log,
    +347                position=position,
    +348                db=db,
    +349                channel=channel,
    +350                like=like,
    +351                where=where,
    +352                types=types,
    +353                query=query,
    +354                offset=offset,
    +355                limit=limit,
    +356                mutex=mutex,
    +357                **{"global": global_},
    +358            )
    +359
    +360        def _parse_var_from_options(self, options):
    +361            for option in options:
    +362                if self._match_text_seq(*option.split(" ")):
    +363                    return exp.Var(this=option)
    +364            return None
    +365
    +366        def _parse_oldstyle_limit(self):
    +367            limit = None
    +368            offset = None
    +369            if self._match_text_seq("LIMIT"):
    +370                parts = self._parse_csv(self._parse_number)
    +371                if len(parts) == 1:
    +372                    limit = parts[0]
    +373                elif len(parts) == 2:
    +374                    limit = parts[1]
    +375                    offset = parts[0]
    +376            return offset, limit
     377
    -378        def _parse_set_item_assignment(self, kind):
    -379            if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"):
    -380                return self._parse_set_transaction(global_=kind == "GLOBAL")
    -381
    -382            left = self._parse_primary() or self._parse_id_var()
    -383            if not self._match(TokenType.EQ):
    -384                self.raise_error("Expected =")
    -385            right = self._parse_statement() or self._parse_id_var()
    -386
    -387            this = self.expression(
    -388                exp.EQ,
    -389                this=left,
    -390                expression=right,
    -391            )
    -392
    -393            return self.expression(
    -394                exp.SetItem,
    -395                this=this,
    -396                kind=kind,
    -397            )
    -398
    -399        def _parse_set_item_charset(self, kind):
    -400            this = self._parse_string() or self._parse_id_var()
    +378        def _default_parse_set_item(self):
    +379            return self._parse_set_item_assignment(kind=None)
    +380
    +381        def _parse_set_item_assignment(self, kind):
    +382            if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"):
    +383                return self._parse_set_transaction(global_=kind == "GLOBAL")
    +384
    +385            left = self._parse_primary() or self._parse_id_var()
    +386            if not self._match(TokenType.EQ):
    +387                self.raise_error("Expected =")
    +388            right = self._parse_statement() or self._parse_id_var()
    +389
    +390            this = self.expression(
    +391                exp.EQ,
    +392                this=left,
    +393                expression=right,
    +394            )
    +395
    +396            return self.expression(
    +397                exp.SetItem,
    +398                this=this,
    +399                kind=kind,
    +400            )
     401
    -402            return self.expression(
    -403                exp.SetItem,
    -404                this=this,
    -405                kind=kind,
    -406            )
    -407
    -408        def _parse_set_item_names(self):
    -409            charset = self._parse_string() or self._parse_id_var()
    -410            if self._match_text_seq("COLLATE"):
    -411                collate = self._parse_string() or self._parse_id_var()
    -412            else:
    -413                collate = None
    -414            return self.expression(
    -415                exp.SetItem,
    -416                this=charset,
    -417                collate=collate,
    -418                kind="NAMES",
    -419            )
    -420
    -421        def _parse_set_transaction(self, global_=False):
    -422            self._match_text_seq("TRANSACTION")
    -423            characteristics = self._parse_csv(
    -424                lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS)
    -425            )
    -426            return self.expression(
    -427                exp.SetItem,
    -428                expressions=characteristics,
    -429                kind="TRANSACTION",
    -430                **{"global": global_},
    -431            )
    -432
    -433    class Generator(generator.Generator):
    -434        LOCKING_READS_SUPPORTED = True
    -435        NULL_ORDERING_SUPPORTED = False
    -436
    -437        TRANSFORMS = {
    -438            **generator.Generator.TRANSFORMS,  # type: ignore
    -439            exp.CurrentDate: no_paren_current_date_sql,
    -440            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    -441            exp.ILike: no_ilike_sql,
    -442            exp.TableSample: no_tablesample_sql,
    -443            exp.TryCast: no_trycast_sql,
    -444            exp.DateAdd: _date_add_sql("ADD"),
    -445            exp.DateSub: _date_add_sql("SUB"),
    -446            exp.DateTrunc: _date_trunc_sql,
    -447            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -448            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    -449            exp.DayOfYear: rename_func("DAYOFYEAR"),
    -450            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    -451            exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
    -452            exp.StrToDate: _str_to_date_sql,
    -453            exp.StrToTime: _str_to_date_sql,
    -454            exp.Trim: _trim_sql,
    -455            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
    -456            exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")),
    -457            exp.StrPosition: strposition_to_locate_sql,
    -458        }
    -459
    -460        TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy()
    -461        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
    -462        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
    -463        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
    -464        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
    -465
    -466        PROPERTIES_LOCATION = {
    -467            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -468            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    -469        }
    +402        def _parse_set_item_charset(self, kind):
    +403            this = self._parse_string() or self._parse_id_var()
    +404
    +405            return self.expression(
    +406                exp.SetItem,
    +407                this=this,
    +408                kind=kind,
    +409            )
    +410
    +411        def _parse_set_item_names(self):
    +412            charset = self._parse_string() or self._parse_id_var()
    +413            if self._match_text_seq("COLLATE"):
    +414                collate = self._parse_string() or self._parse_id_var()
    +415            else:
    +416                collate = None
    +417            return self.expression(
    +418                exp.SetItem,
    +419                this=charset,
    +420                collate=collate,
    +421                kind="NAMES",
    +422            )
    +423
    +424        def _parse_set_transaction(self, global_=False):
    +425            self._match_text_seq("TRANSACTION")
    +426            characteristics = self._parse_csv(
    +427                lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS)
    +428            )
    +429            return self.expression(
    +430                exp.SetItem,
    +431                expressions=characteristics,
    +432                kind="TRANSACTION",
    +433                **{"global": global_},
    +434            )
    +435
    +436    class Generator(generator.Generator):
    +437        LOCKING_READS_SUPPORTED = True
    +438        NULL_ORDERING_SUPPORTED = False
    +439        INTEGER_DIVISION = False
    +440
    +441        TRANSFORMS = {
    +442            **generator.Generator.TRANSFORMS,  # type: ignore
    +443            exp.CurrentDate: no_paren_current_date_sql,
    +444            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    +445            exp.ILike: no_ilike_sql,
    +446            exp.Min: min_or_least,
    +447            exp.TableSample: no_tablesample_sql,
    +448            exp.TryCast: no_trycast_sql,
    +449            exp.DateAdd: _date_add_sql("ADD"),
    +450            exp.DateSub: _date_add_sql("SUB"),
    +451            exp.DateTrunc: _date_trunc_sql,
    +452            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    +453            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    +454            exp.DayOfYear: rename_func("DAYOFYEAR"),
    +455            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    +456            exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
    +457            exp.StrToDate: _str_to_date_sql,
    +458            exp.StrToTime: _str_to_date_sql,
    +459            exp.Trim: _trim_sql,
    +460            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
    +461            exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")),
    +462            exp.StrPosition: strposition_to_locate_sql,
    +463        }
    +464
    +465        TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy()
    +466        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
    +467        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
    +468        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
    +469        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     470
    -471        def show_sql(self, expression):
    -472            this = f" {expression.name}"
    -473            full = " FULL" if expression.args.get("full") else ""
    -474            global_ = " GLOBAL" if expression.args.get("global") else ""
    +471        PROPERTIES_LOCATION = {
    +472            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +473            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    +474        }
     475
    -476            target = self.sql(expression, "target")
    -477            target = f" {target}" if target else ""
    -478            if expression.name in {"COLUMNS", "INDEX"}:
    -479                target = f" FROM{target}"
    -480            elif expression.name == "GRANTS":
    -481                target = f" FOR{target}"
    -482
    -483            db = self._prefixed_sql("FROM", expression, "db")
    -484
    -485            like = self._prefixed_sql("LIKE", expression, "like")
    -486            where = self.sql(expression, "where")
    +476        def show_sql(self, expression):
    +477            this = f" {expression.name}"
    +478            full = " FULL" if expression.args.get("full") else ""
    +479            global_ = " GLOBAL" if expression.args.get("global") else ""
    +480
    +481            target = self.sql(expression, "target")
    +482            target = f" {target}" if target else ""
    +483            if expression.name in {"COLUMNS", "INDEX"}:
    +484                target = f" FROM{target}"
    +485            elif expression.name == "GRANTS":
    +486                target = f" FOR{target}"
     487
    -488            types = self.expressions(expression, key="types")
    -489            types = f" {types}" if types else types
    -490            query = self._prefixed_sql("FOR QUERY", expression, "query")
    -491
    -492            if expression.name == "PROFILE":
    -493                offset = self._prefixed_sql("OFFSET", expression, "offset")
    -494                limit = self._prefixed_sql("LIMIT", expression, "limit")
    -495            else:
    -496                offset = ""
    -497                limit = self._oldstyle_limit_sql(expression)
    -498
    -499            log = self._prefixed_sql("IN", expression, "log")
    -500            position = self._prefixed_sql("FROM", expression, "position")
    -501
    -502            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    +488            db = self._prefixed_sql("FROM", expression, "db")
    +489
    +490            like = self._prefixed_sql("LIKE", expression, "like")
    +491            where = self.sql(expression, "where")
    +492
    +493            types = self.expressions(expression, key="types")
    +494            types = f" {types}" if types else types
    +495            query = self._prefixed_sql("FOR QUERY", expression, "query")
    +496
    +497            if expression.name == "PROFILE":
    +498                offset = self._prefixed_sql("OFFSET", expression, "offset")
    +499                limit = self._prefixed_sql("LIMIT", expression, "limit")
    +500            else:
    +501                offset = ""
    +502                limit = self._oldstyle_limit_sql(expression)
     503
    -504            if expression.name == "ENGINE":
    -505                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    -506            else:
    -507                mutex_or_status = ""
    +504            log = self._prefixed_sql("IN", expression, "log")
    +505            position = self._prefixed_sql("FROM", expression, "position")
    +506
    +507            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
     508
    -509            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    -510
    -511        def _prefixed_sql(self, prefix, expression, arg):
    -512            sql = self.sql(expression, arg)
    -513            if not sql:
    -514                return ""
    -515            return f" {prefix} {sql}"
    -516
    -517        def _oldstyle_limit_sql(self, expression):
    -518            limit = self.sql(expression, "limit")
    -519            offset = self.sql(expression, "offset")
    -520            if limit:
    -521                limit_offset = f"{offset}, {limit}" if offset else limit
    -522                return f" LIMIT {limit_offset}"
    -523            return ""
    -524
    -525        def setitem_sql(self, expression):
    -526            kind = self.sql(expression, "kind")
    -527            kind = f"{kind} " if kind else ""
    -528            this = self.sql(expression, "this")
    -529            expressions = self.expressions(expression)
    -530            collate = self.sql(expression, "collate")
    -531            collate = f" COLLATE {collate}" if collate else ""
    -532            global_ = "GLOBAL " if expression.args.get("global") else ""
    -533            return f"{global_}{kind}{this}{expressions}{collate}"
    -534
    -535        def set_sql(self, expression):
    -536            return f"SET {self.expressions(expression)}"
    +509            if expression.name == "ENGINE":
    +510                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    +511            else:
    +512                mutex_or_status = ""
    +513
    +514            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    +515
    +516        def _prefixed_sql(self, prefix, expression, arg):
    +517            sql = self.sql(expression, arg)
    +518            if not sql:
    +519                return ""
    +520            return f" {prefix} {sql}"
    +521
    +522        def _oldstyle_limit_sql(self, expression):
    +523            limit = self.sql(expression, "limit")
    +524            offset = self.sql(expression, "offset")
    +525            if limit:
    +526                limit_offset = f"{offset}, {limit}" if offset else limit
    +527                return f" LIMIT {limit_offset}"
    +528            return ""
    +529
    +530        def setitem_sql(self, expression):
    +531            kind = self.sql(expression, "kind")
    +532            kind = f"{kind} " if kind else ""
    +533            this = self.sql(expression, "this")
    +534            expressions = self.expressions(expression)
    +535            collate = self.sql(expression, "collate")
    +536            collate = f" COLLATE {collate}" if collate else ""
    +537            global_ = "GLOBAL " if expression.args.get("global") else ""
    +538            return f"{global_}{kind}{this}{expressions}{collate}"
    +539
    +540        def set_sql(self, expression):
    +541            return f"SET {self.expressions(expression)}"
     
    @@ -1106,69 +1115,69 @@
    -
    118    class Tokenizer(tokens.Tokenizer):
    -119        QUOTES = ["'", '"']
    -120        COMMENTS = ["--", "#", ("/*", "*/")]
    -121        IDENTIFIERS = ["`"]
    -122        STRING_ESCAPES = ["'", "\\"]
    -123        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
    -124        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
    -125
    -126        KEYWORDS = {
    -127            **tokens.Tokenizer.KEYWORDS,
    -128            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
    -129            "LONGTEXT": TokenType.LONGTEXT,
    -130            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
    -131            "LONGBLOB": TokenType.LONGBLOB,
    -132            "START": TokenType.BEGIN,
    -133            "SEPARATOR": TokenType.SEPARATOR,
    -134            "_ARMSCII8": TokenType.INTRODUCER,
    -135            "_ASCII": TokenType.INTRODUCER,
    -136            "_BIG5": TokenType.INTRODUCER,
    -137            "_BINARY": TokenType.INTRODUCER,
    -138            "_CP1250": TokenType.INTRODUCER,
    -139            "_CP1251": TokenType.INTRODUCER,
    -140            "_CP1256": TokenType.INTRODUCER,
    -141            "_CP1257": TokenType.INTRODUCER,
    -142            "_CP850": TokenType.INTRODUCER,
    -143            "_CP852": TokenType.INTRODUCER,
    -144            "_CP866": TokenType.INTRODUCER,
    -145            "_CP932": TokenType.INTRODUCER,
    -146            "_DEC8": TokenType.INTRODUCER,
    -147            "_EUCJPMS": TokenType.INTRODUCER,
    -148            "_EUCKR": TokenType.INTRODUCER,
    -149            "_GB18030": TokenType.INTRODUCER,
    -150            "_GB2312": TokenType.INTRODUCER,
    -151            "_GBK": TokenType.INTRODUCER,
    -152            "_GEOSTD8": TokenType.INTRODUCER,
    -153            "_GREEK": TokenType.INTRODUCER,
    -154            "_HEBREW": TokenType.INTRODUCER,
    -155            "_HP8": TokenType.INTRODUCER,
    -156            "_KEYBCS2": TokenType.INTRODUCER,
    -157            "_KOI8R": TokenType.INTRODUCER,
    -158            "_KOI8U": TokenType.INTRODUCER,
    -159            "_LATIN1": TokenType.INTRODUCER,
    -160            "_LATIN2": TokenType.INTRODUCER,
    -161            "_LATIN5": TokenType.INTRODUCER,
    -162            "_LATIN7": TokenType.INTRODUCER,
    -163            "_MACCE": TokenType.INTRODUCER,
    -164            "_MACROMAN": TokenType.INTRODUCER,
    -165            "_SJIS": TokenType.INTRODUCER,
    -166            "_SWE7": TokenType.INTRODUCER,
    -167            "_TIS620": TokenType.INTRODUCER,
    -168            "_UCS2": TokenType.INTRODUCER,
    -169            "_UJIS": TokenType.INTRODUCER,
    -170            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
    -171            "_UTF8": TokenType.INTRODUCER,
    -172            "_UTF16": TokenType.INTRODUCER,
    -173            "_UTF16LE": TokenType.INTRODUCER,
    -174            "_UTF32": TokenType.INTRODUCER,
    -175            "_UTF8MB3": TokenType.INTRODUCER,
    -176            "_UTF8MB4": TokenType.INTRODUCER,
    -177            "@@": TokenType.SESSION_PARAMETER,
    -178        }
    -179
    -180        COMMANDS = tokens.Tokenizer.COMMANDS - {TokenType.SET, TokenType.SHOW}
    +            
    119    class Tokenizer(tokens.Tokenizer):
    +120        QUOTES = ["'", '"']
    +121        COMMENTS = ["--", "#", ("/*", "*/")]
    +122        IDENTIFIERS = ["`"]
    +123        STRING_ESCAPES = ["'", "\\"]
    +124        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
    +125        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
    +126
    +127        KEYWORDS = {
    +128            **tokens.Tokenizer.KEYWORDS,
    +129            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
    +130            "LONGTEXT": TokenType.LONGTEXT,
    +131            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
    +132            "LONGBLOB": TokenType.LONGBLOB,
    +133            "START": TokenType.BEGIN,
    +134            "SEPARATOR": TokenType.SEPARATOR,
    +135            "_ARMSCII8": TokenType.INTRODUCER,
    +136            "_ASCII": TokenType.INTRODUCER,
    +137            "_BIG5": TokenType.INTRODUCER,
    +138            "_BINARY": TokenType.INTRODUCER,
    +139            "_CP1250": TokenType.INTRODUCER,
    +140            "_CP1251": TokenType.INTRODUCER,
    +141            "_CP1256": TokenType.INTRODUCER,
    +142            "_CP1257": TokenType.INTRODUCER,
    +143            "_CP850": TokenType.INTRODUCER,
    +144            "_CP852": TokenType.INTRODUCER,
    +145            "_CP866": TokenType.INTRODUCER,
    +146            "_CP932": TokenType.INTRODUCER,
    +147            "_DEC8": TokenType.INTRODUCER,
    +148            "_EUCJPMS": TokenType.INTRODUCER,
    +149            "_EUCKR": TokenType.INTRODUCER,
    +150            "_GB18030": TokenType.INTRODUCER,
    +151            "_GB2312": TokenType.INTRODUCER,
    +152            "_GBK": TokenType.INTRODUCER,
    +153            "_GEOSTD8": TokenType.INTRODUCER,
    +154            "_GREEK": TokenType.INTRODUCER,
    +155            "_HEBREW": TokenType.INTRODUCER,
    +156            "_HP8": TokenType.INTRODUCER,
    +157            "_KEYBCS2": TokenType.INTRODUCER,
    +158            "_KOI8R": TokenType.INTRODUCER,
    +159            "_KOI8U": TokenType.INTRODUCER,
    +160            "_LATIN1": TokenType.INTRODUCER,
    +161            "_LATIN2": TokenType.INTRODUCER,
    +162            "_LATIN5": TokenType.INTRODUCER,
    +163            "_LATIN7": TokenType.INTRODUCER,
    +164            "_MACCE": TokenType.INTRODUCER,
    +165            "_MACROMAN": TokenType.INTRODUCER,
    +166            "_SJIS": TokenType.INTRODUCER,
    +167            "_SWE7": TokenType.INTRODUCER,
    +168            "_TIS620": TokenType.INTRODUCER,
    +169            "_UCS2": TokenType.INTRODUCER,
    +170            "_UJIS": TokenType.INTRODUCER,
    +171            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
    +172            "_UTF8": TokenType.INTRODUCER,
    +173            "_UTF16": TokenType.INTRODUCER,
    +174            "_UTF16LE": TokenType.INTRODUCER,
    +175            "_UTF32": TokenType.INTRODUCER,
    +176            "_UTF8MB3": TokenType.INTRODUCER,
    +177            "_UTF8MB4": TokenType.INTRODUCER,
    +178            "@@": TokenType.SESSION_PARAMETER,
    +179        }
    +180
    +181        COMMANDS = tokens.Tokenizer.COMMANDS - {TokenType.SET, TokenType.SHOW}
     
    @@ -1196,256 +1205,258 @@
    -
    182    class Parser(parser.Parser):
    -183        FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS, TokenType.SCHEMA}  # type: ignore
    -184
    -185        FUNCTIONS = {
    -186            **parser.Parser.FUNCTIONS,  # type: ignore
    -187            "DATE_ADD": _date_add(exp.DateAdd),
    -188            "DATE_SUB": _date_add(exp.DateSub),
    -189            "STR_TO_DATE": _str_to_date,
    -190            "LOCATE": locate_to_strposition,
    -191            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
    -192            "LEFT": lambda args: exp.Substring(
    -193                this=seq_get(args, 0), start=exp.Literal.number(1), length=seq_get(args, 1)
    -194            ),
    -195        }
    -196
    -197        FUNCTION_PARSERS = {
    -198            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    -199            "GROUP_CONCAT": lambda self: self.expression(
    -200                exp.GroupConcat,
    -201                this=self._parse_lambda(),
    -202                separator=self._match(TokenType.SEPARATOR) and self._parse_field(),
    -203            ),
    -204        }
    -205
    -206        PROPERTY_PARSERS = {
    -207            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    -208            "ENGINE": lambda self: self._parse_property_assignment(exp.EngineProperty),
    -209        }
    -210
    -211        STATEMENT_PARSERS = {
    -212            **parser.Parser.STATEMENT_PARSERS,  # type: ignore
    -213            TokenType.SHOW: lambda self: self._parse_show(),
    -214            TokenType.SET: lambda self: self._parse_set(),
    -215        }
    -216
    -217        SHOW_PARSERS = {
    -218            "BINARY LOGS": _show_parser("BINARY LOGS"),
    -219            "MASTER LOGS": _show_parser("BINARY LOGS"),
    -220            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    -221            "CHARACTER SET": _show_parser("CHARACTER SET"),
    -222            "CHARSET": _show_parser("CHARACTER SET"),
    -223            "COLLATION": _show_parser("COLLATION"),
    -224            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    -225            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    -226            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    -227            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    -228            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    -229            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    -230            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    -231            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    -232            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    -233            "DATABASES": _show_parser("DATABASES"),
    -234            "ENGINE": _show_parser("ENGINE", target=True),
    -235            "STORAGE ENGINES": _show_parser("ENGINES"),
    -236            "ENGINES": _show_parser("ENGINES"),
    -237            "ERRORS": _show_parser("ERRORS"),
    -238            "EVENTS": _show_parser("EVENTS"),
    -239            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    -240            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    -241            "GRANTS": _show_parser("GRANTS", target="FOR"),
    -242            "INDEX": _show_parser("INDEX", target="FROM"),
    -243            "MASTER STATUS": _show_parser("MASTER STATUS"),
    -244            "OPEN TABLES": _show_parser("OPEN TABLES"),
    -245            "PLUGINS": _show_parser("PLUGINS"),
    -246            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    -247            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    -248            "PRIVILEGES": _show_parser("PRIVILEGES"),
    -249            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    -250            "PROCESSLIST": _show_parser("PROCESSLIST"),
    -251            "PROFILE": _show_parser("PROFILE"),
    -252            "PROFILES": _show_parser("PROFILES"),
    -253            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    -254            "REPLICAS": _show_parser("REPLICAS"),
    -255            "SLAVE HOSTS": _show_parser("REPLICAS"),
    -256            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    -257            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    -258            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    -259            "SESSION STATUS": _show_parser("STATUS"),
    -260            "STATUS": _show_parser("STATUS"),
    -261            "TABLE STATUS": _show_parser("TABLE STATUS"),
    -262            "FULL TABLES": _show_parser("TABLES", full=True),
    -263            "TABLES": _show_parser("TABLES"),
    -264            "TRIGGERS": _show_parser("TRIGGERS"),
    -265            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    -266            "SESSION VARIABLES": _show_parser("VARIABLES"),
    -267            "VARIABLES": _show_parser("VARIABLES"),
    -268            "WARNINGS": _show_parser("WARNINGS"),
    -269        }
    -270
    -271        SET_PARSERS = {
    -272            "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"),
    -273            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    -274            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    -275            "SESSION": lambda self: self._parse_set_item_assignment("SESSION"),
    -276            "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"),
    -277            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    -278            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    -279            "NAMES": lambda self: self._parse_set_item_names(),
    -280            "TRANSACTION": lambda self: self._parse_set_transaction(),
    -281        }
    -282
    -283        PROFILE_TYPES = {
    -284            "ALL",
    -285            "BLOCK IO",
    -286            "CONTEXT SWITCHES",
    -287            "CPU",
    -288            "IPC",
    -289            "MEMORY",
    -290            "PAGE FAULTS",
    -291            "SOURCE",
    -292            "SWAPS",
    -293        }
    -294
    -295        TRANSACTION_CHARACTERISTICS = {
    -296            "ISOLATION LEVEL REPEATABLE READ",
    -297            "ISOLATION LEVEL READ COMMITTED",
    -298            "ISOLATION LEVEL READ UNCOMMITTED",
    -299            "ISOLATION LEVEL SERIALIZABLE",
    -300            "READ WRITE",
    -301            "READ ONLY",
    -302        }
    -303
    -304        def _parse_show_mysql(self, this, target=False, full=None, global_=None):
    -305            if target:
    -306                if isinstance(target, str):
    -307                    self._match_text_seq(target)
    -308                target_id = self._parse_id_var()
    -309            else:
    -310                target_id = None
    -311
    -312            log = self._parse_string() if self._match_text_seq("IN") else None
    -313
    -314            if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}:
    -315                position = self._parse_number() if self._match_text_seq("FROM") else None
    -316                db = None
    -317            else:
    -318                position = None
    -319                db = self._parse_id_var() if self._match_text_seq("FROM") else None
    -320
    -321            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
    -322
    -323            like = self._parse_string() if self._match_text_seq("LIKE") else None
    -324            where = self._parse_where()
    +            
    183    class Parser(parser.Parser):
    +184        FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS, TokenType.SCHEMA, TokenType.DATABASE}  # type: ignore
    +185
    +186        FUNCTIONS = {
    +187            **parser.Parser.FUNCTIONS,  # type: ignore
    +188            "DATE_ADD": _date_add(exp.DateAdd),
    +189            "DATE_SUB": _date_add(exp.DateSub),
    +190            "STR_TO_DATE": _str_to_date,
    +191            "LOCATE": locate_to_strposition,
    +192            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
    +193            "LEFT": lambda args: exp.Substring(
    +194                this=seq_get(args, 0), start=exp.Literal.number(1), length=seq_get(args, 1)
    +195            ),
    +196        }
    +197
    +198        FUNCTION_PARSERS = {
    +199            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    +200            "GROUP_CONCAT": lambda self: self.expression(
    +201                exp.GroupConcat,
    +202                this=self._parse_lambda(),
    +203                separator=self._match(TokenType.SEPARATOR) and self._parse_field(),
    +204            ),
    +205        }
    +206
    +207        PROPERTY_PARSERS = {
    +208            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    +209            "ENGINE": lambda self: self._parse_property_assignment(exp.EngineProperty),
    +210        }
    +211
    +212        STATEMENT_PARSERS = {
    +213            **parser.Parser.STATEMENT_PARSERS,  # type: ignore
    +214            TokenType.SHOW: lambda self: self._parse_show(),
    +215            TokenType.SET: lambda self: self._parse_set(),
    +216        }
    +217
    +218        SHOW_PARSERS = {
    +219            "BINARY LOGS": _show_parser("BINARY LOGS"),
    +220            "MASTER LOGS": _show_parser("BINARY LOGS"),
    +221            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    +222            "CHARACTER SET": _show_parser("CHARACTER SET"),
    +223            "CHARSET": _show_parser("CHARACTER SET"),
    +224            "COLLATION": _show_parser("COLLATION"),
    +225            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    +226            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    +227            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    +228            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    +229            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    +230            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    +231            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    +232            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    +233            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    +234            "DATABASES": _show_parser("DATABASES"),
    +235            "ENGINE": _show_parser("ENGINE", target=True),
    +236            "STORAGE ENGINES": _show_parser("ENGINES"),
    +237            "ENGINES": _show_parser("ENGINES"),
    +238            "ERRORS": _show_parser("ERRORS"),
    +239            "EVENTS": _show_parser("EVENTS"),
    +240            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    +241            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    +242            "GRANTS": _show_parser("GRANTS", target="FOR"),
    +243            "INDEX": _show_parser("INDEX", target="FROM"),
    +244            "MASTER STATUS": _show_parser("MASTER STATUS"),
    +245            "OPEN TABLES": _show_parser("OPEN TABLES"),
    +246            "PLUGINS": _show_parser("PLUGINS"),
    +247            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    +248            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    +249            "PRIVILEGES": _show_parser("PRIVILEGES"),
    +250            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    +251            "PROCESSLIST": _show_parser("PROCESSLIST"),
    +252            "PROFILE": _show_parser("PROFILE"),
    +253            "PROFILES": _show_parser("PROFILES"),
    +254            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    +255            "REPLICAS": _show_parser("REPLICAS"),
    +256            "SLAVE HOSTS": _show_parser("REPLICAS"),
    +257            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    +258            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    +259            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    +260            "SESSION STATUS": _show_parser("STATUS"),
    +261            "STATUS": _show_parser("STATUS"),
    +262            "TABLE STATUS": _show_parser("TABLE STATUS"),
    +263            "FULL TABLES": _show_parser("TABLES", full=True),
    +264            "TABLES": _show_parser("TABLES"),
    +265            "TRIGGERS": _show_parser("TRIGGERS"),
    +266            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    +267            "SESSION VARIABLES": _show_parser("VARIABLES"),
    +268            "VARIABLES": _show_parser("VARIABLES"),
    +269            "WARNINGS": _show_parser("WARNINGS"),
    +270        }
    +271
    +272        SET_PARSERS = {
    +273            "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"),
    +274            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    +275            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    +276            "SESSION": lambda self: self._parse_set_item_assignment("SESSION"),
    +277            "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"),
    +278            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    +279            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    +280            "NAMES": lambda self: self._parse_set_item_names(),
    +281            "TRANSACTION": lambda self: self._parse_set_transaction(),
    +282        }
    +283
    +284        PROFILE_TYPES = {
    +285            "ALL",
    +286            "BLOCK IO",
    +287            "CONTEXT SWITCHES",
    +288            "CPU",
    +289            "IPC",
    +290            "MEMORY",
    +291            "PAGE FAULTS",
    +292            "SOURCE",
    +293            "SWAPS",
    +294        }
    +295
    +296        TRANSACTION_CHARACTERISTICS = {
    +297            "ISOLATION LEVEL REPEATABLE READ",
    +298            "ISOLATION LEVEL READ COMMITTED",
    +299            "ISOLATION LEVEL READ UNCOMMITTED",
    +300            "ISOLATION LEVEL SERIALIZABLE",
    +301            "READ WRITE",
    +302            "READ ONLY",
    +303        }
    +304
    +305        INTEGER_DIVISION = False
    +306
    +307        def _parse_show_mysql(self, this, target=False, full=None, global_=None):
    +308            if target:
    +309                if isinstance(target, str):
    +310                    self._match_text_seq(target)
    +311                target_id = self._parse_id_var()
    +312            else:
    +313                target_id = None
    +314
    +315            log = self._parse_string() if self._match_text_seq("IN") else None
    +316
    +317            if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}:
    +318                position = self._parse_number() if self._match_text_seq("FROM") else None
    +319                db = None
    +320            else:
    +321                position = None
    +322                db = self._parse_id_var() if self._match_text_seq("FROM") else None
    +323
    +324            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
     325
    -326            if this == "PROFILE":
    -327                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    -328                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    -329                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    -330                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    -331            else:
    -332                types, query = None, None
    -333                offset, limit = self._parse_oldstyle_limit()
    -334
    -335            mutex = True if self._match_text_seq("MUTEX") else None
    -336            mutex = False if self._match_text_seq("STATUS") else mutex
    +326            like = self._parse_string() if self._match_text_seq("LIKE") else None
    +327            where = self._parse_where()
    +328
    +329            if this == "PROFILE":
    +330                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    +331                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    +332                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    +333                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    +334            else:
    +335                types, query = None, None
    +336                offset, limit = self._parse_oldstyle_limit()
     337
    -338            return self.expression(
    -339                exp.Show,
    -340                this=this,
    -341                target=target_id,
    -342                full=full,
    -343                log=log,
    -344                position=position,
    -345                db=db,
    -346                channel=channel,
    -347                like=like,
    -348                where=where,
    -349                types=types,
    -350                query=query,
    -351                offset=offset,
    -352                limit=limit,
    -353                mutex=mutex,
    -354                **{"global": global_},
    -355            )
    -356
    -357        def _parse_var_from_options(self, options):
    -358            for option in options:
    -359                if self._match_text_seq(*option.split(" ")):
    -360                    return exp.Var(this=option)
    -361            return None
    -362
    -363        def _parse_oldstyle_limit(self):
    -364            limit = None
    -365            offset = None
    -366            if self._match_text_seq("LIMIT"):
    -367                parts = self._parse_csv(self._parse_number)
    -368                if len(parts) == 1:
    -369                    limit = parts[0]
    -370                elif len(parts) == 2:
    -371                    limit = parts[1]
    -372                    offset = parts[0]
    -373            return offset, limit
    -374
    -375        def _default_parse_set_item(self):
    -376            return self._parse_set_item_assignment(kind=None)
    +338            mutex = True if self._match_text_seq("MUTEX") else None
    +339            mutex = False if self._match_text_seq("STATUS") else mutex
    +340
    +341            return self.expression(
    +342                exp.Show,
    +343                this=this,
    +344                target=target_id,
    +345                full=full,
    +346                log=log,
    +347                position=position,
    +348                db=db,
    +349                channel=channel,
    +350                like=like,
    +351                where=where,
    +352                types=types,
    +353                query=query,
    +354                offset=offset,
    +355                limit=limit,
    +356                mutex=mutex,
    +357                **{"global": global_},
    +358            )
    +359
    +360        def _parse_var_from_options(self, options):
    +361            for option in options:
    +362                if self._match_text_seq(*option.split(" ")):
    +363                    return exp.Var(this=option)
    +364            return None
    +365
    +366        def _parse_oldstyle_limit(self):
    +367            limit = None
    +368            offset = None
    +369            if self._match_text_seq("LIMIT"):
    +370                parts = self._parse_csv(self._parse_number)
    +371                if len(parts) == 1:
    +372                    limit = parts[0]
    +373                elif len(parts) == 2:
    +374                    limit = parts[1]
    +375                    offset = parts[0]
    +376            return offset, limit
     377
    -378        def _parse_set_item_assignment(self, kind):
    -379            if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"):
    -380                return self._parse_set_transaction(global_=kind == "GLOBAL")
    -381
    -382            left = self._parse_primary() or self._parse_id_var()
    -383            if not self._match(TokenType.EQ):
    -384                self.raise_error("Expected =")
    -385            right = self._parse_statement() or self._parse_id_var()
    -386
    -387            this = self.expression(
    -388                exp.EQ,
    -389                this=left,
    -390                expression=right,
    -391            )
    -392
    -393            return self.expression(
    -394                exp.SetItem,
    -395                this=this,
    -396                kind=kind,
    -397            )
    -398
    -399        def _parse_set_item_charset(self, kind):
    -400            this = self._parse_string() or self._parse_id_var()
    +378        def _default_parse_set_item(self):
    +379            return self._parse_set_item_assignment(kind=None)
    +380
    +381        def _parse_set_item_assignment(self, kind):
    +382            if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"):
    +383                return self._parse_set_transaction(global_=kind == "GLOBAL")
    +384
    +385            left = self._parse_primary() or self._parse_id_var()
    +386            if not self._match(TokenType.EQ):
    +387                self.raise_error("Expected =")
    +388            right = self._parse_statement() or self._parse_id_var()
    +389
    +390            this = self.expression(
    +391                exp.EQ,
    +392                this=left,
    +393                expression=right,
    +394            )
    +395
    +396            return self.expression(
    +397                exp.SetItem,
    +398                this=this,
    +399                kind=kind,
    +400            )
     401
    -402            return self.expression(
    -403                exp.SetItem,
    -404                this=this,
    -405                kind=kind,
    -406            )
    -407
    -408        def _parse_set_item_names(self):
    -409            charset = self._parse_string() or self._parse_id_var()
    -410            if self._match_text_seq("COLLATE"):
    -411                collate = self._parse_string() or self._parse_id_var()
    -412            else:
    -413                collate = None
    -414            return self.expression(
    -415                exp.SetItem,
    -416                this=charset,
    -417                collate=collate,
    -418                kind="NAMES",
    -419            )
    -420
    -421        def _parse_set_transaction(self, global_=False):
    -422            self._match_text_seq("TRANSACTION")
    -423            characteristics = self._parse_csv(
    -424                lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS)
    -425            )
    -426            return self.expression(
    -427                exp.SetItem,
    -428                expressions=characteristics,
    -429                kind="TRANSACTION",
    -430                **{"global": global_},
    -431            )
    +402        def _parse_set_item_charset(self, kind):
    +403            this = self._parse_string() or self._parse_id_var()
    +404
    +405            return self.expression(
    +406                exp.SetItem,
    +407                this=this,
    +408                kind=kind,
    +409            )
    +410
    +411        def _parse_set_item_names(self):
    +412            charset = self._parse_string() or self._parse_id_var()
    +413            if self._match_text_seq("COLLATE"):
    +414                collate = self._parse_string() or self._parse_id_var()
    +415            else:
    +416                collate = None
    +417            return self.expression(
    +418                exp.SetItem,
    +419                this=charset,
    +420                collate=collate,
    +421                kind="NAMES",
    +422            )
    +423
    +424        def _parse_set_transaction(self, global_=False):
    +425            self._match_text_seq("TRANSACTION")
    +426            characteristics = self._parse_csv(
    +427                lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS)
    +428            )
    +429            return self.expression(
    +430                exp.SetItem,
    +431                expressions=characteristics,
    +432                kind="TRANSACTION",
    +433                **{"global": global_},
    +434            )
     
    @@ -1502,110 +1513,112 @@ Default: "nulls_are_small"
    -
    433    class Generator(generator.Generator):
    -434        LOCKING_READS_SUPPORTED = True
    -435        NULL_ORDERING_SUPPORTED = False
    -436
    -437        TRANSFORMS = {
    -438            **generator.Generator.TRANSFORMS,  # type: ignore
    -439            exp.CurrentDate: no_paren_current_date_sql,
    -440            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    -441            exp.ILike: no_ilike_sql,
    -442            exp.TableSample: no_tablesample_sql,
    -443            exp.TryCast: no_trycast_sql,
    -444            exp.DateAdd: _date_add_sql("ADD"),
    -445            exp.DateSub: _date_add_sql("SUB"),
    -446            exp.DateTrunc: _date_trunc_sql,
    -447            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -448            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    -449            exp.DayOfYear: rename_func("DAYOFYEAR"),
    -450            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    -451            exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
    -452            exp.StrToDate: _str_to_date_sql,
    -453            exp.StrToTime: _str_to_date_sql,
    -454            exp.Trim: _trim_sql,
    -455            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
    -456            exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")),
    -457            exp.StrPosition: strposition_to_locate_sql,
    -458        }
    -459
    -460        TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy()
    -461        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
    -462        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
    -463        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
    -464        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
    -465
    -466        PROPERTIES_LOCATION = {
    -467            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -468            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    -469        }
    +            
    436    class Generator(generator.Generator):
    +437        LOCKING_READS_SUPPORTED = True
    +438        NULL_ORDERING_SUPPORTED = False
    +439        INTEGER_DIVISION = False
    +440
    +441        TRANSFORMS = {
    +442            **generator.Generator.TRANSFORMS,  # type: ignore
    +443            exp.CurrentDate: no_paren_current_date_sql,
    +444            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    +445            exp.ILike: no_ilike_sql,
    +446            exp.Min: min_or_least,
    +447            exp.TableSample: no_tablesample_sql,
    +448            exp.TryCast: no_trycast_sql,
    +449            exp.DateAdd: _date_add_sql("ADD"),
    +450            exp.DateSub: _date_add_sql("SUB"),
    +451            exp.DateTrunc: _date_trunc_sql,
    +452            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    +453            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    +454            exp.DayOfYear: rename_func("DAYOFYEAR"),
    +455            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    +456            exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
    +457            exp.StrToDate: _str_to_date_sql,
    +458            exp.StrToTime: _str_to_date_sql,
    +459            exp.Trim: _trim_sql,
    +460            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
    +461            exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")),
    +462            exp.StrPosition: strposition_to_locate_sql,
    +463        }
    +464
    +465        TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy()
    +466        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
    +467        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
    +468        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
    +469        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     470
    -471        def show_sql(self, expression):
    -472            this = f" {expression.name}"
    -473            full = " FULL" if expression.args.get("full") else ""
    -474            global_ = " GLOBAL" if expression.args.get("global") else ""
    +471        PROPERTIES_LOCATION = {
    +472            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +473            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    +474        }
     475
    -476            target = self.sql(expression, "target")
    -477            target = f" {target}" if target else ""
    -478            if expression.name in {"COLUMNS", "INDEX"}:
    -479                target = f" FROM{target}"
    -480            elif expression.name == "GRANTS":
    -481                target = f" FOR{target}"
    -482
    -483            db = self._prefixed_sql("FROM", expression, "db")
    -484
    -485            like = self._prefixed_sql("LIKE", expression, "like")
    -486            where = self.sql(expression, "where")
    +476        def show_sql(self, expression):
    +477            this = f" {expression.name}"
    +478            full = " FULL" if expression.args.get("full") else ""
    +479            global_ = " GLOBAL" if expression.args.get("global") else ""
    +480
    +481            target = self.sql(expression, "target")
    +482            target = f" {target}" if target else ""
    +483            if expression.name in {"COLUMNS", "INDEX"}:
    +484                target = f" FROM{target}"
    +485            elif expression.name == "GRANTS":
    +486                target = f" FOR{target}"
     487
    -488            types = self.expressions(expression, key="types")
    -489            types = f" {types}" if types else types
    -490            query = self._prefixed_sql("FOR QUERY", expression, "query")
    -491
    -492            if expression.name == "PROFILE":
    -493                offset = self._prefixed_sql("OFFSET", expression, "offset")
    -494                limit = self._prefixed_sql("LIMIT", expression, "limit")
    -495            else:
    -496                offset = ""
    -497                limit = self._oldstyle_limit_sql(expression)
    -498
    -499            log = self._prefixed_sql("IN", expression, "log")
    -500            position = self._prefixed_sql("FROM", expression, "position")
    -501
    -502            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    +488            db = self._prefixed_sql("FROM", expression, "db")
    +489
    +490            like = self._prefixed_sql("LIKE", expression, "like")
    +491            where = self.sql(expression, "where")
    +492
    +493            types = self.expressions(expression, key="types")
    +494            types = f" {types}" if types else types
    +495            query = self._prefixed_sql("FOR QUERY", expression, "query")
    +496
    +497            if expression.name == "PROFILE":
    +498                offset = self._prefixed_sql("OFFSET", expression, "offset")
    +499                limit = self._prefixed_sql("LIMIT", expression, "limit")
    +500            else:
    +501                offset = ""
    +502                limit = self._oldstyle_limit_sql(expression)
     503
    -504            if expression.name == "ENGINE":
    -505                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    -506            else:
    -507                mutex_or_status = ""
    +504            log = self._prefixed_sql("IN", expression, "log")
    +505            position = self._prefixed_sql("FROM", expression, "position")
    +506
    +507            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
     508
    -509            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    -510
    -511        def _prefixed_sql(self, prefix, expression, arg):
    -512            sql = self.sql(expression, arg)
    -513            if not sql:
    -514                return ""
    -515            return f" {prefix} {sql}"
    -516
    -517        def _oldstyle_limit_sql(self, expression):
    -518            limit = self.sql(expression, "limit")
    -519            offset = self.sql(expression, "offset")
    -520            if limit:
    -521                limit_offset = f"{offset}, {limit}" if offset else limit
    -522                return f" LIMIT {limit_offset}"
    -523            return ""
    -524
    -525        def setitem_sql(self, expression):
    -526            kind = self.sql(expression, "kind")
    -527            kind = f"{kind} " if kind else ""
    -528            this = self.sql(expression, "this")
    -529            expressions = self.expressions(expression)
    -530            collate = self.sql(expression, "collate")
    -531            collate = f" COLLATE {collate}" if collate else ""
    -532            global_ = "GLOBAL " if expression.args.get("global") else ""
    -533            return f"{global_}{kind}{this}{expressions}{collate}"
    -534
    -535        def set_sql(self, expression):
    -536            return f"SET {self.expressions(expression)}"
    +509            if expression.name == "ENGINE":
    +510                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    +511            else:
    +512                mutex_or_status = ""
    +513
    +514            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    +515
    +516        def _prefixed_sql(self, prefix, expression, arg):
    +517            sql = self.sql(expression, arg)
    +518            if not sql:
    +519                return ""
    +520            return f" {prefix} {sql}"
    +521
    +522        def _oldstyle_limit_sql(self, expression):
    +523            limit = self.sql(expression, "limit")
    +524            offset = self.sql(expression, "offset")
    +525            if limit:
    +526                limit_offset = f"{offset}, {limit}" if offset else limit
    +527                return f" LIMIT {limit_offset}"
    +528            return ""
    +529
    +530        def setitem_sql(self, expression):
    +531            kind = self.sql(expression, "kind")
    +532            kind = f"{kind} " if kind else ""
    +533            this = self.sql(expression, "this")
    +534            expressions = self.expressions(expression)
    +535            collate = self.sql(expression, "collate")
    +536            collate = f" COLLATE {collate}" if collate else ""
    +537            global_ = "GLOBAL " if expression.args.get("global") else ""
    +538            return f"{global_}{kind}{this}{expressions}{collate}"
    +539
    +540        def set_sql(self, expression):
    +541            return f"SET {self.expressions(expression)}"
     
    @@ -1665,45 +1678,45 @@ Default: True
    -
    471        def show_sql(self, expression):
    -472            this = f" {expression.name}"
    -473            full = " FULL" if expression.args.get("full") else ""
    -474            global_ = " GLOBAL" if expression.args.get("global") else ""
    -475
    -476            target = self.sql(expression, "target")
    -477            target = f" {target}" if target else ""
    -478            if expression.name in {"COLUMNS", "INDEX"}:
    -479                target = f" FROM{target}"
    -480            elif expression.name == "GRANTS":
    -481                target = f" FOR{target}"
    -482
    -483            db = self._prefixed_sql("FROM", expression, "db")
    -484
    -485            like = self._prefixed_sql("LIKE", expression, "like")
    -486            where = self.sql(expression, "where")
    +            
    476        def show_sql(self, expression):
    +477            this = f" {expression.name}"
    +478            full = " FULL" if expression.args.get("full") else ""
    +479            global_ = " GLOBAL" if expression.args.get("global") else ""
    +480
    +481            target = self.sql(expression, "target")
    +482            target = f" {target}" if target else ""
    +483            if expression.name in {"COLUMNS", "INDEX"}:
    +484                target = f" FROM{target}"
    +485            elif expression.name == "GRANTS":
    +486                target = f" FOR{target}"
     487
    -488            types = self.expressions(expression, key="types")
    -489            types = f" {types}" if types else types
    -490            query = self._prefixed_sql("FOR QUERY", expression, "query")
    -491
    -492            if expression.name == "PROFILE":
    -493                offset = self._prefixed_sql("OFFSET", expression, "offset")
    -494                limit = self._prefixed_sql("LIMIT", expression, "limit")
    -495            else:
    -496                offset = ""
    -497                limit = self._oldstyle_limit_sql(expression)
    -498
    -499            log = self._prefixed_sql("IN", expression, "log")
    -500            position = self._prefixed_sql("FROM", expression, "position")
    -501
    -502            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    +488            db = self._prefixed_sql("FROM", expression, "db")
    +489
    +490            like = self._prefixed_sql("LIKE", expression, "like")
    +491            where = self.sql(expression, "where")
    +492
    +493            types = self.expressions(expression, key="types")
    +494            types = f" {types}" if types else types
    +495            query = self._prefixed_sql("FOR QUERY", expression, "query")
    +496
    +497            if expression.name == "PROFILE":
    +498                offset = self._prefixed_sql("OFFSET", expression, "offset")
    +499                limit = self._prefixed_sql("LIMIT", expression, "limit")
    +500            else:
    +501                offset = ""
    +502                limit = self._oldstyle_limit_sql(expression)
     503
    -504            if expression.name == "ENGINE":
    -505                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    -506            else:
    -507                mutex_or_status = ""
    +504            log = self._prefixed_sql("IN", expression, "log")
    +505            position = self._prefixed_sql("FROM", expression, "position")
    +506
    +507            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
     508
    -509            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    +509            if expression.name == "ENGINE":
    +510                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    +511            else:
    +512                mutex_or_status = ""
    +513
    +514            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
     
    @@ -1721,15 +1734,15 @@ Default: True
    -
    525        def setitem_sql(self, expression):
    -526            kind = self.sql(expression, "kind")
    -527            kind = f"{kind} " if kind else ""
    -528            this = self.sql(expression, "this")
    -529            expressions = self.expressions(expression)
    -530            collate = self.sql(expression, "collate")
    -531            collate = f" COLLATE {collate}" if collate else ""
    -532            global_ = "GLOBAL " if expression.args.get("global") else ""
    -533            return f"{global_}{kind}{this}{expressions}{collate}"
    +            
    530        def setitem_sql(self, expression):
    +531            kind = self.sql(expression, "kind")
    +532            kind = f"{kind} " if kind else ""
    +533            this = self.sql(expression, "this")
    +534            expressions = self.expressions(expression)
    +535            collate = self.sql(expression, "collate")
    +536            collate = f" COLLATE {collate}" if collate else ""
    +537            global_ = "GLOBAL " if expression.args.get("global") else ""
    +538            return f"{global_}{kind}{this}{expressions}{collate}"
     
    @@ -1747,8 +1760,8 @@ Default: True
    -
    535        def set_sql(self, expression):
    -536            return f"SET {self.expressions(expression)}"
    +            
    540        def set_sql(self, expression):
    +541            return f"SET {self.expressions(expression)}"
     
    @@ -1827,6 +1840,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -1928,6 +1942,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/oracle.html b/docs/sqlglot/dialects/oracle.html index b263277..58cf5cd 100644 --- a/docs/sqlglot/dialects/oracle.html +++ b/docs/sqlglot/dialects/oracle.html @@ -173,99 +173,102 @@
    82 "XMLTABLE": _parse_xml_table, 83 } 84 - 85 def _parse_column(self) -> t.Optional[exp.Expression]: - 86 column = super()._parse_column() - 87 if column: - 88 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) - 89 return column - 90 - 91 class Generator(generator.Generator): - 92 LOCKING_READS_SUPPORTED = True - 93 - 94 TYPE_MAPPING = { - 95 **generator.Generator.TYPE_MAPPING, # type: ignore - 96 exp.DataType.Type.TINYINT: "NUMBER", - 97 exp.DataType.Type.SMALLINT: "NUMBER", - 98 exp.DataType.Type.INT: "NUMBER", - 99 exp.DataType.Type.BIGINT: "NUMBER", -100 exp.DataType.Type.DECIMAL: "NUMBER", -101 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", -102 exp.DataType.Type.VARCHAR: "VARCHAR2", -103 exp.DataType.Type.NVARCHAR: "NVARCHAR2", -104 exp.DataType.Type.TEXT: "CLOB", -105 exp.DataType.Type.BINARY: "BLOB", -106 exp.DataType.Type.VARBINARY: "BLOB", -107 } -108 -109 TRANSFORMS = { -110 **generator.Generator.TRANSFORMS, # type: ignore -111 **transforms.UNALIAS_GROUP, # type: ignore -112 exp.ILike: no_ilike_sql, -113 exp.Limit: _limit_sql, -114 exp.Trim: trim_sql, -115 exp.Matches: rename_func("DECODE"), -116 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -117 exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), -118 exp.Table: lambda self, e: self.table_sql(e, sep=" "), -119 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", -120 exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", -121 exp.Substring: rename_func("SUBSTR"), -122 } -123 -124 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: -125 return csv( -126 *sqls, -127 *[self.sql(sql) for sql in expression.args.get("joins") or []], -128 self.sql(expression, "match"), -129 *[self.sql(sql) for sql in expression.args.get("laterals") or []], -130 self.sql(expression, "where"), -131 self.sql(expression, "group"), -132 self.sql(expression, "having"), -133 self.sql(expression, "qualify"), -134 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) -135 if expression.args.get("windows") -136 else "", -137 self.sql(expression, "distribute"), -138 self.sql(expression, "sort"), -139 self.sql(expression, "cluster"), -140 self.sql(expression, "order"), -141 self.sql(expression, "offset"), # offset before limit in oracle -142 self.sql(expression, "limit"), -143 self.sql(expression, "lock"), -144 sep="", -145 ) -146 -147 def offset_sql(self, expression: exp.Offset) -> str: -148 return f"{super().offset_sql(expression)} ROWS" + 85 INTEGER_DIVISION = False + 86 + 87 def _parse_column(self) -> t.Optional[exp.Expression]: + 88 column = super()._parse_column() + 89 if column: + 90 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) + 91 return column + 92 + 93 class Generator(generator.Generator): + 94 LOCKING_READS_SUPPORTED = True + 95 INTEGER_DIVISION = False + 96 + 97 TYPE_MAPPING = { + 98 **generator.Generator.TYPE_MAPPING, # type: ignore + 99 exp.DataType.Type.TINYINT: "NUMBER", +100 exp.DataType.Type.SMALLINT: "NUMBER", +101 exp.DataType.Type.INT: "NUMBER", +102 exp.DataType.Type.BIGINT: "NUMBER", +103 exp.DataType.Type.DECIMAL: "NUMBER", +104 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", +105 exp.DataType.Type.VARCHAR: "VARCHAR2", +106 exp.DataType.Type.NVARCHAR: "NVARCHAR2", +107 exp.DataType.Type.TEXT: "CLOB", +108 exp.DataType.Type.BINARY: "BLOB", +109 exp.DataType.Type.VARBINARY: "BLOB", +110 } +111 +112 TRANSFORMS = { +113 **generator.Generator.TRANSFORMS, # type: ignore +114 **transforms.UNALIAS_GROUP, # type: ignore +115 exp.ILike: no_ilike_sql, +116 exp.Limit: _limit_sql, +117 exp.Trim: trim_sql, +118 exp.Matches: rename_func("DECODE"), +119 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +120 exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), +121 exp.Table: lambda self, e: self.table_sql(e, sep=" "), +122 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +123 exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", +124 exp.Substring: rename_func("SUBSTR"), +125 } +126 +127 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: +128 return csv( +129 *sqls, +130 *[self.sql(sql) for sql in expression.args.get("joins") or []], +131 self.sql(expression, "match"), +132 *[self.sql(sql) for sql in expression.args.get("laterals") or []], +133 self.sql(expression, "where"), +134 self.sql(expression, "group"), +135 self.sql(expression, "having"), +136 self.sql(expression, "qualify"), +137 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) +138 if expression.args.get("windows") +139 else "", +140 self.sql(expression, "distribute"), +141 self.sql(expression, "sort"), +142 self.sql(expression, "cluster"), +143 self.sql(expression, "order"), +144 self.sql(expression, "offset"), # offset before limit in oracle +145 self.sql(expression, "limit"), +146 self.sql(expression, "lock"), +147 sep="", +148 ) 149 -150 def column_sql(self, expression: exp.Column) -> str: -151 column = super().column_sql(expression) -152 return f"{column} (+)" if expression.args.get("join_mark") else column -153 -154 def xmltable_sql(self, expression: exp.XMLTable) -> str: -155 this = self.sql(expression, "this") -156 passing = self.expressions(expression, "passing") -157 passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else "" -158 columns = self.expressions(expression, "columns") -159 columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else "" -160 by_ref = ( -161 f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else "" -162 ) -163 return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" -164 -165 class Tokenizer(tokens.Tokenizer): -166 KEYWORDS = { -167 **tokens.Tokenizer.KEYWORDS, -168 "(+)": TokenType.JOIN_MARKER, -169 "COLUMNS": TokenType.COLUMN, -170 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, -171 "MINUS": TokenType.EXCEPT, -172 "NVARCHAR2": TokenType.NVARCHAR, -173 "RETURNING": TokenType.RETURNING, -174 "START": TokenType.BEGIN, -175 "TOP": TokenType.TOP, -176 "VARCHAR2": TokenType.VARCHAR, -177 } +150 def offset_sql(self, expression: exp.Offset) -> str: +151 return f"{super().offset_sql(expression)} ROWS" +152 +153 def column_sql(self, expression: exp.Column) -> str: +154 column = super().column_sql(expression) +155 return f"{column} (+)" if expression.args.get("join_mark") else column +156 +157 def xmltable_sql(self, expression: exp.XMLTable) -> str: +158 this = self.sql(expression, "this") +159 passing = self.expressions(expression, "passing") +160 passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else "" +161 columns = self.expressions(expression, "columns") +162 columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else "" +163 by_ref = ( +164 f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else "" +165 ) +166 return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" +167 +168 class Tokenizer(tokens.Tokenizer): +169 KEYWORDS = { +170 **tokens.Tokenizer.KEYWORDS, +171 "(+)": TokenType.JOIN_MARKER, +172 "COLUMNS": TokenType.COLUMN, +173 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, +174 "MINUS": TokenType.EXCEPT, +175 "NVARCHAR2": TokenType.NVARCHAR, +176 "RETURNING": TokenType.RETURNING, +177 "START": TokenType.BEGIN, +178 "TOP": TokenType.TOP, +179 "VARCHAR2": TokenType.VARCHAR, +180 }
    @@ -319,99 +322,102 @@ 83 "XMLTABLE": _parse_xml_table, 84 } 85 - 86 def _parse_column(self) -> t.Optional[exp.Expression]: - 87 column = super()._parse_column() - 88 if column: - 89 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) - 90 return column - 91 - 92 class Generator(generator.Generator): - 93 LOCKING_READS_SUPPORTED = True - 94 - 95 TYPE_MAPPING = { - 96 **generator.Generator.TYPE_MAPPING, # type: ignore - 97 exp.DataType.Type.TINYINT: "NUMBER", - 98 exp.DataType.Type.SMALLINT: "NUMBER", - 99 exp.DataType.Type.INT: "NUMBER", -100 exp.DataType.Type.BIGINT: "NUMBER", -101 exp.DataType.Type.DECIMAL: "NUMBER", -102 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", -103 exp.DataType.Type.VARCHAR: "VARCHAR2", -104 exp.DataType.Type.NVARCHAR: "NVARCHAR2", -105 exp.DataType.Type.TEXT: "CLOB", -106 exp.DataType.Type.BINARY: "BLOB", -107 exp.DataType.Type.VARBINARY: "BLOB", -108 } -109 -110 TRANSFORMS = { -111 **generator.Generator.TRANSFORMS, # type: ignore -112 **transforms.UNALIAS_GROUP, # type: ignore -113 exp.ILike: no_ilike_sql, -114 exp.Limit: _limit_sql, -115 exp.Trim: trim_sql, -116 exp.Matches: rename_func("DECODE"), -117 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -118 exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), -119 exp.Table: lambda self, e: self.table_sql(e, sep=" "), -120 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", -121 exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", -122 exp.Substring: rename_func("SUBSTR"), -123 } -124 -125 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: -126 return csv( -127 *sqls, -128 *[self.sql(sql) for sql in expression.args.get("joins") or []], -129 self.sql(expression, "match"), -130 *[self.sql(sql) for sql in expression.args.get("laterals") or []], -131 self.sql(expression, "where"), -132 self.sql(expression, "group"), -133 self.sql(expression, "having"), -134 self.sql(expression, "qualify"), -135 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) -136 if expression.args.get("windows") -137 else "", -138 self.sql(expression, "distribute"), -139 self.sql(expression, "sort"), -140 self.sql(expression, "cluster"), -141 self.sql(expression, "order"), -142 self.sql(expression, "offset"), # offset before limit in oracle -143 self.sql(expression, "limit"), -144 self.sql(expression, "lock"), -145 sep="", -146 ) -147 -148 def offset_sql(self, expression: exp.Offset) -> str: -149 return f"{super().offset_sql(expression)} ROWS" + 86 INTEGER_DIVISION = False + 87 + 88 def _parse_column(self) -> t.Optional[exp.Expression]: + 89 column = super()._parse_column() + 90 if column: + 91 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) + 92 return column + 93 + 94 class Generator(generator.Generator): + 95 LOCKING_READS_SUPPORTED = True + 96 INTEGER_DIVISION = False + 97 + 98 TYPE_MAPPING = { + 99 **generator.Generator.TYPE_MAPPING, # type: ignore +100 exp.DataType.Type.TINYINT: "NUMBER", +101 exp.DataType.Type.SMALLINT: "NUMBER", +102 exp.DataType.Type.INT: "NUMBER", +103 exp.DataType.Type.BIGINT: "NUMBER", +104 exp.DataType.Type.DECIMAL: "NUMBER", +105 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", +106 exp.DataType.Type.VARCHAR: "VARCHAR2", +107 exp.DataType.Type.NVARCHAR: "NVARCHAR2", +108 exp.DataType.Type.TEXT: "CLOB", +109 exp.DataType.Type.BINARY: "BLOB", +110 exp.DataType.Type.VARBINARY: "BLOB", +111 } +112 +113 TRANSFORMS = { +114 **generator.Generator.TRANSFORMS, # type: ignore +115 **transforms.UNALIAS_GROUP, # type: ignore +116 exp.ILike: no_ilike_sql, +117 exp.Limit: _limit_sql, +118 exp.Trim: trim_sql, +119 exp.Matches: rename_func("DECODE"), +120 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +121 exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), +122 exp.Table: lambda self, e: self.table_sql(e, sep=" "), +123 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +124 exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", +125 exp.Substring: rename_func("SUBSTR"), +126 } +127 +128 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: +129 return csv( +130 *sqls, +131 *[self.sql(sql) for sql in expression.args.get("joins") or []], +132 self.sql(expression, "match"), +133 *[self.sql(sql) for sql in expression.args.get("laterals") or []], +134 self.sql(expression, "where"), +135 self.sql(expression, "group"), +136 self.sql(expression, "having"), +137 self.sql(expression, "qualify"), +138 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) +139 if expression.args.get("windows") +140 else "", +141 self.sql(expression, "distribute"), +142 self.sql(expression, "sort"), +143 self.sql(expression, "cluster"), +144 self.sql(expression, "order"), +145 self.sql(expression, "offset"), # offset before limit in oracle +146 self.sql(expression, "limit"), +147 self.sql(expression, "lock"), +148 sep="", +149 ) 150 -151 def column_sql(self, expression: exp.Column) -> str: -152 column = super().column_sql(expression) -153 return f"{column} (+)" if expression.args.get("join_mark") else column -154 -155 def xmltable_sql(self, expression: exp.XMLTable) -> str: -156 this = self.sql(expression, "this") -157 passing = self.expressions(expression, "passing") -158 passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else "" -159 columns = self.expressions(expression, "columns") -160 columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else "" -161 by_ref = ( -162 f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else "" -163 ) -164 return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" -165 -166 class Tokenizer(tokens.Tokenizer): -167 KEYWORDS = { -168 **tokens.Tokenizer.KEYWORDS, -169 "(+)": TokenType.JOIN_MARKER, -170 "COLUMNS": TokenType.COLUMN, -171 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, -172 "MINUS": TokenType.EXCEPT, -173 "NVARCHAR2": TokenType.NVARCHAR, -174 "RETURNING": TokenType.RETURNING, -175 "START": TokenType.BEGIN, -176 "TOP": TokenType.TOP, -177 "VARCHAR2": TokenType.VARCHAR, -178 } +151 def offset_sql(self, expression: exp.Offset) -> str: +152 return f"{super().offset_sql(expression)} ROWS" +153 +154 def column_sql(self, expression: exp.Column) -> str: +155 column = super().column_sql(expression) +156 return f"{column} (+)" if expression.args.get("join_mark") else column +157 +158 def xmltable_sql(self, expression: exp.XMLTable) -> str: +159 this = self.sql(expression, "this") +160 passing = self.expressions(expression, "passing") +161 passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else "" +162 columns = self.expressions(expression, "columns") +163 columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else "" +164 by_ref = ( +165 f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else "" +166 ) +167 return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" +168 +169 class Tokenizer(tokens.Tokenizer): +170 KEYWORDS = { +171 **tokens.Tokenizer.KEYWORDS, +172 "(+)": TokenType.JOIN_MARKER, +173 "COLUMNS": TokenType.COLUMN, +174 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, +175 "MINUS": TokenType.EXCEPT, +176 "NVARCHAR2": TokenType.NVARCHAR, +177 "RETURNING": TokenType.RETURNING, +178 "START": TokenType.BEGIN, +179 "TOP": TokenType.TOP, +180 "VARCHAR2": TokenType.VARCHAR, +181 }
    @@ -456,11 +462,13 @@
    83 "XMLTABLE": _parse_xml_table, 84 } 85 -86 def _parse_column(self) -> t.Optional[exp.Expression]: -87 column = super()._parse_column() -88 if column: -89 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) -90 return column +86 INTEGER_DIVISION = False +87 +88 def _parse_column(self) -> t.Optional[exp.Expression]: +89 column = super()._parse_column() +90 if column: +91 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) +92 return column @@ -517,79 +525,80 @@ Default: "nulls_are_small" -
     92    class Generator(generator.Generator):
    - 93        LOCKING_READS_SUPPORTED = True
    - 94
    - 95        TYPE_MAPPING = {
    - 96            **generator.Generator.TYPE_MAPPING,  # type: ignore
    - 97            exp.DataType.Type.TINYINT: "NUMBER",
    - 98            exp.DataType.Type.SMALLINT: "NUMBER",
    - 99            exp.DataType.Type.INT: "NUMBER",
    -100            exp.DataType.Type.BIGINT: "NUMBER",
    -101            exp.DataType.Type.DECIMAL: "NUMBER",
    -102            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    -103            exp.DataType.Type.VARCHAR: "VARCHAR2",
    -104            exp.DataType.Type.NVARCHAR: "NVARCHAR2",
    -105            exp.DataType.Type.TEXT: "CLOB",
    -106            exp.DataType.Type.BINARY: "BLOB",
    -107            exp.DataType.Type.VARBINARY: "BLOB",
    -108        }
    -109
    -110        TRANSFORMS = {
    -111            **generator.Generator.TRANSFORMS,  # type: ignore
    -112            **transforms.UNALIAS_GROUP,  # type: ignore
    -113            exp.ILike: no_ilike_sql,
    -114            exp.Limit: _limit_sql,
    -115            exp.Trim: trim_sql,
    -116            exp.Matches: rename_func("DECODE"),
    -117            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -118            exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "),
    -119            exp.Table: lambda self, e: self.table_sql(e, sep=" "),
    -120            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    -121            exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)",
    -122            exp.Substring: rename_func("SUBSTR"),
    -123        }
    -124
    -125        def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str:
    -126            return csv(
    -127                *sqls,
    -128                *[self.sql(sql) for sql in expression.args.get("joins") or []],
    -129                self.sql(expression, "match"),
    -130                *[self.sql(sql) for sql in expression.args.get("laterals") or []],
    -131                self.sql(expression, "where"),
    -132                self.sql(expression, "group"),
    -133                self.sql(expression, "having"),
    -134                self.sql(expression, "qualify"),
    -135                self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True)
    -136                if expression.args.get("windows")
    -137                else "",
    -138                self.sql(expression, "distribute"),
    -139                self.sql(expression, "sort"),
    -140                self.sql(expression, "cluster"),
    -141                self.sql(expression, "order"),
    -142                self.sql(expression, "offset"),  # offset before limit in oracle
    -143                self.sql(expression, "limit"),
    -144                self.sql(expression, "lock"),
    -145                sep="",
    -146            )
    -147
    -148        def offset_sql(self, expression: exp.Offset) -> str:
    -149            return f"{super().offset_sql(expression)} ROWS"
    +            
     94    class Generator(generator.Generator):
    + 95        LOCKING_READS_SUPPORTED = True
    + 96        INTEGER_DIVISION = False
    + 97
    + 98        TYPE_MAPPING = {
    + 99            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +100            exp.DataType.Type.TINYINT: "NUMBER",
    +101            exp.DataType.Type.SMALLINT: "NUMBER",
    +102            exp.DataType.Type.INT: "NUMBER",
    +103            exp.DataType.Type.BIGINT: "NUMBER",
    +104            exp.DataType.Type.DECIMAL: "NUMBER",
    +105            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    +106            exp.DataType.Type.VARCHAR: "VARCHAR2",
    +107            exp.DataType.Type.NVARCHAR: "NVARCHAR2",
    +108            exp.DataType.Type.TEXT: "CLOB",
    +109            exp.DataType.Type.BINARY: "BLOB",
    +110            exp.DataType.Type.VARBINARY: "BLOB",
    +111        }
    +112
    +113        TRANSFORMS = {
    +114            **generator.Generator.TRANSFORMS,  # type: ignore
    +115            **transforms.UNALIAS_GROUP,  # type: ignore
    +116            exp.ILike: no_ilike_sql,
    +117            exp.Limit: _limit_sql,
    +118            exp.Trim: trim_sql,
    +119            exp.Matches: rename_func("DECODE"),
    +120            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    +121            exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "),
    +122            exp.Table: lambda self, e: self.table_sql(e, sep=" "),
    +123            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    +124            exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)",
    +125            exp.Substring: rename_func("SUBSTR"),
    +126        }
    +127
    +128        def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str:
    +129            return csv(
    +130                *sqls,
    +131                *[self.sql(sql) for sql in expression.args.get("joins") or []],
    +132                self.sql(expression, "match"),
    +133                *[self.sql(sql) for sql in expression.args.get("laterals") or []],
    +134                self.sql(expression, "where"),
    +135                self.sql(expression, "group"),
    +136                self.sql(expression, "having"),
    +137                self.sql(expression, "qualify"),
    +138                self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True)
    +139                if expression.args.get("windows")
    +140                else "",
    +141                self.sql(expression, "distribute"),
    +142                self.sql(expression, "sort"),
    +143                self.sql(expression, "cluster"),
    +144                self.sql(expression, "order"),
    +145                self.sql(expression, "offset"),  # offset before limit in oracle
    +146                self.sql(expression, "limit"),
    +147                self.sql(expression, "lock"),
    +148                sep="",
    +149            )
     150
    -151        def column_sql(self, expression: exp.Column) -> str:
    -152            column = super().column_sql(expression)
    -153            return f"{column} (+)" if expression.args.get("join_mark") else column
    -154
    -155        def xmltable_sql(self, expression: exp.XMLTable) -> str:
    -156            this = self.sql(expression, "this")
    -157            passing = self.expressions(expression, "passing")
    -158            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
    -159            columns = self.expressions(expression, "columns")
    -160            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
    -161            by_ref = (
    -162                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
    -163            )
    -164            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
    +151        def offset_sql(self, expression: exp.Offset) -> str:
    +152            return f"{super().offset_sql(expression)} ROWS"
    +153
    +154        def column_sql(self, expression: exp.Column) -> str:
    +155            column = super().column_sql(expression)
    +156            return f"{column} (+)" if expression.args.get("join_mark") else column
    +157
    +158        def xmltable_sql(self, expression: exp.XMLTable) -> str:
    +159            this = self.sql(expression, "this")
    +160            passing = self.expressions(expression, "passing")
    +161            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
    +162            columns = self.expressions(expression, "columns")
    +163            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
    +164            by_ref = (
    +165                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
    +166            )
    +167            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
     
    @@ -649,28 +658,28 @@ Default: True
    -
    125        def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str:
    -126            return csv(
    -127                *sqls,
    -128                *[self.sql(sql) for sql in expression.args.get("joins") or []],
    -129                self.sql(expression, "match"),
    -130                *[self.sql(sql) for sql in expression.args.get("laterals") or []],
    -131                self.sql(expression, "where"),
    -132                self.sql(expression, "group"),
    -133                self.sql(expression, "having"),
    -134                self.sql(expression, "qualify"),
    -135                self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True)
    -136                if expression.args.get("windows")
    -137                else "",
    -138                self.sql(expression, "distribute"),
    -139                self.sql(expression, "sort"),
    -140                self.sql(expression, "cluster"),
    -141                self.sql(expression, "order"),
    -142                self.sql(expression, "offset"),  # offset before limit in oracle
    -143                self.sql(expression, "limit"),
    -144                self.sql(expression, "lock"),
    -145                sep="",
    -146            )
    +            
    128        def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str:
    +129            return csv(
    +130                *sqls,
    +131                *[self.sql(sql) for sql in expression.args.get("joins") or []],
    +132                self.sql(expression, "match"),
    +133                *[self.sql(sql) for sql in expression.args.get("laterals") or []],
    +134                self.sql(expression, "where"),
    +135                self.sql(expression, "group"),
    +136                self.sql(expression, "having"),
    +137                self.sql(expression, "qualify"),
    +138                self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True)
    +139                if expression.args.get("windows")
    +140                else "",
    +141                self.sql(expression, "distribute"),
    +142                self.sql(expression, "sort"),
    +143                self.sql(expression, "cluster"),
    +144                self.sql(expression, "order"),
    +145                self.sql(expression, "offset"),  # offset before limit in oracle
    +146                self.sql(expression, "limit"),
    +147                self.sql(expression, "lock"),
    +148                sep="",
    +149            )
     
    @@ -688,8 +697,8 @@ Default: True
    -
    148        def offset_sql(self, expression: exp.Offset) -> str:
    -149            return f"{super().offset_sql(expression)} ROWS"
    +            
    151        def offset_sql(self, expression: exp.Offset) -> str:
    +152            return f"{super().offset_sql(expression)} ROWS"
     
    @@ -707,9 +716,9 @@ Default: True
    -
    151        def column_sql(self, expression: exp.Column) -> str:
    -152            column = super().column_sql(expression)
    -153            return f"{column} (+)" if expression.args.get("join_mark") else column
    +            
    154        def column_sql(self, expression: exp.Column) -> str:
    +155            column = super().column_sql(expression)
    +156            return f"{column} (+)" if expression.args.get("join_mark") else column
     
    @@ -727,16 +736,16 @@ Default: True
    -
    155        def xmltable_sql(self, expression: exp.XMLTable) -> str:
    -156            this = self.sql(expression, "this")
    -157            passing = self.expressions(expression, "passing")
    -158            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
    -159            columns = self.expressions(expression, "columns")
    -160            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
    -161            by_ref = (
    -162                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
    -163            )
    -164            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
    +            
    158        def xmltable_sql(self, expression: exp.XMLTable) -> str:
    +159            this = self.sql(expression, "this")
    +160            passing = self.expressions(expression, "passing")
    +161            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
    +162            columns = self.expressions(expression, "columns")
    +163            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
    +164            by_ref = (
    +165                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
    +166            )
    +167            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
     
    @@ -814,6 +823,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -913,6 +923,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    @@ -970,19 +981,19 @@ Default: True
    -
    166    class Tokenizer(tokens.Tokenizer):
    -167        KEYWORDS = {
    -168            **tokens.Tokenizer.KEYWORDS,
    -169            "(+)": TokenType.JOIN_MARKER,
    -170            "COLUMNS": TokenType.COLUMN,
    -171            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    -172            "MINUS": TokenType.EXCEPT,
    -173            "NVARCHAR2": TokenType.NVARCHAR,
    -174            "RETURNING": TokenType.RETURNING,
    -175            "START": TokenType.BEGIN,
    -176            "TOP": TokenType.TOP,
    -177            "VARCHAR2": TokenType.VARCHAR,
    -178        }
    +            
    169    class Tokenizer(tokens.Tokenizer):
    +170        KEYWORDS = {
    +171            **tokens.Tokenizer.KEYWORDS,
    +172            "(+)": TokenType.JOIN_MARKER,
    +173            "COLUMNS": TokenType.COLUMN,
    +174            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    +175            "MINUS": TokenType.EXCEPT,
    +176            "NVARCHAR2": TokenType.NVARCHAR,
    +177            "RETURNING": TokenType.RETURNING,
    +178            "START": TokenType.BEGIN,
    +179            "TOP": TokenType.TOP,
    +180            "VARCHAR2": TokenType.VARCHAR,
    +181        }
     
    diff --git a/docs/sqlglot/dialects/postgres.html b/docs/sqlglot/dialects/postgres.html index b6da041..41f6d27 100644 --- a/docs/sqlglot/dialects/postgres.html +++ b/docs/sqlglot/dialects/postgres.html @@ -85,299 +85,299 @@
    6 arrow_json_extract_scalar_sql, 7 arrow_json_extract_sql, 8 format_time_lambda, - 9 no_paren_current_date_sql, - 10 no_tablesample_sql, - 11 no_trycast_sql, - 12 rename_func, - 13 str_position_sql, - 14 trim_sql, - 15) - 16from sqlglot.helper import seq_get - 17from sqlglot.tokens import TokenType - 18from sqlglot.transforms import delegate, preprocess - 19 - 20DATE_DIFF_FACTOR = { - 21 "MICROSECOND": " * 1000000", - 22 "MILLISECOND": " * 1000", - 23 "SECOND": "", - 24 "MINUTE": " / 60", - 25 "HOUR": " / 3600", - 26 "DAY": " / 86400", - 27} - 28 + 9 min_or_least, + 10 no_paren_current_date_sql, + 11 no_tablesample_sql, + 12 no_trycast_sql, + 13 rename_func, + 14 str_position_sql, + 15 trim_sql, + 16) + 17from sqlglot.helper import seq_get + 18from sqlglot.tokens import TokenType + 19from sqlglot.transforms import delegate, preprocess + 20 + 21DATE_DIFF_FACTOR = { + 22 "MICROSECOND": " * 1000000", + 23 "MILLISECOND": " * 1000", + 24 "SECOND": "", + 25 "MINUTE": " / 60", + 26 "HOUR": " / 3600", + 27 "DAY": " / 86400", + 28} 29 - 30def _date_add_sql(kind): - 31 def func(self, expression): - 32 from sqlglot.optimizer.simplify import simplify - 33 - 34 this = self.sql(expression, "this") - 35 unit = self.sql(expression, "unit") - 36 expression = simplify(expression.args["expression"]) - 37 - 38 if not isinstance(expression, exp.Literal): - 39 self.unsupported("Cannot add non literal") - 40 - 41 expression = expression.copy() - 42 expression.args["is_string"] = True - 43 return f"{this} {kind} {self.sql(exp.Interval(this=expression, unit=unit))}" - 44 - 45 return func - 46 + 30 + 31def _date_add_sql(kind): + 32 def func(self, expression): + 33 from sqlglot.optimizer.simplify import simplify + 34 + 35 this = self.sql(expression, "this") + 36 unit = self.sql(expression, "unit") + 37 expression = simplify(expression.args["expression"]) + 38 + 39 if not isinstance(expression, exp.Literal): + 40 self.unsupported("Cannot add non literal") + 41 + 42 expression = expression.copy() + 43 expression.args["is_string"] = True + 44 return f"{this} {kind} {self.sql(exp.Interval(this=expression, unit=unit))}" + 45 + 46 return func 47 - 48def _date_diff_sql(self, expression): - 49 unit = expression.text("unit").upper() - 50 factor = DATE_DIFF_FACTOR.get(unit) - 51 - 52 end = f"CAST({expression.this} AS TIMESTAMP)" - 53 start = f"CAST({expression.expression} AS TIMESTAMP)" - 54 - 55 if factor is not None: - 56 return f"CAST(EXTRACT(epoch FROM {end} - {start}){factor} AS BIGINT)" - 57 - 58 age = f"AGE({end}, {start})" - 59 - 60 if unit == "WEEK": - 61 unit = f"EXTRACT(year FROM {age}) * 48 + EXTRACT(month FROM {age}) * 4 + EXTRACT(day FROM {age}) / 7" - 62 elif unit == "MONTH": - 63 unit = f"EXTRACT(year FROM {age}) * 12 + EXTRACT(month FROM {age})" - 64 elif unit == "QUARTER": - 65 unit = f"EXTRACT(year FROM {age}) * 4 + EXTRACT(month FROM {age}) / 3" - 66 elif unit == "YEAR": - 67 unit = f"EXTRACT(year FROM {age})" - 68 else: - 69 unit = age - 70 - 71 return f"CAST({unit} AS BIGINT)" - 72 + 48 + 49def _date_diff_sql(self, expression): + 50 unit = expression.text("unit").upper() + 51 factor = DATE_DIFF_FACTOR.get(unit) + 52 + 53 end = f"CAST({expression.this} AS TIMESTAMP)" + 54 start = f"CAST({expression.expression} AS TIMESTAMP)" + 55 + 56 if factor is not None: + 57 return f"CAST(EXTRACT(epoch FROM {end} - {start}){factor} AS BIGINT)" + 58 + 59 age = f"AGE({end}, {start})" + 60 + 61 if unit == "WEEK": + 62 unit = f"EXTRACT(year FROM {age}) * 48 + EXTRACT(month FROM {age}) * 4 + EXTRACT(day FROM {age}) / 7" + 63 elif unit == "MONTH": + 64 unit = f"EXTRACT(year FROM {age}) * 12 + EXTRACT(month FROM {age})" + 65 elif unit == "QUARTER": + 66 unit = f"EXTRACT(year FROM {age}) * 4 + EXTRACT(month FROM {age}) / 3" + 67 elif unit == "YEAR": + 68 unit = f"EXTRACT(year FROM {age})" + 69 else: + 70 unit = age + 71 + 72 return f"CAST({unit} AS BIGINT)" 73 - 74def _substring_sql(self, expression): - 75 this = self.sql(expression, "this") - 76 start = self.sql(expression, "start") - 77 length = self.sql(expression, "length") - 78 - 79 from_part = f" FROM {start}" if start else "" - 80 for_part = f" FOR {length}" if length else "" - 81 - 82 return f"SUBSTRING({this}{from_part}{for_part})" - 83 + 74 + 75def _substring_sql(self, expression): + 76 this = self.sql(expression, "this") + 77 start = self.sql(expression, "start") + 78 length = self.sql(expression, "length") + 79 + 80 from_part = f" FROM {start}" if start else "" + 81 for_part = f" FOR {length}" if length else "" + 82 + 83 return f"SUBSTRING({this}{from_part}{for_part})" 84 - 85def _string_agg_sql(self, expression): - 86 expression = expression.copy() - 87 separator = expression.args.get("separator") or exp.Literal.string(",") - 88 - 89 order = "" - 90 this = expression.this - 91 if isinstance(this, exp.Order): - 92 if this.this: - 93 this = this.this - 94 this.pop() - 95 order = self.sql(expression.this) # Order has a leading space - 96 - 97 return f"STRING_AGG({self.format_args(this, separator)}{order})" - 98 + 85 + 86def _string_agg_sql(self, expression): + 87 expression = expression.copy() + 88 separator = expression.args.get("separator") or exp.Literal.string(",") + 89 + 90 order = "" + 91 this = expression.this + 92 if isinstance(this, exp.Order): + 93 if this.this: + 94 this = this.this + 95 this.pop() + 96 order = self.sql(expression.this) # Order has a leading space + 97 + 98 return f"STRING_AGG({self.format_args(this, separator)}{order})" 99 -100def _datatype_sql(self, expression): -101 if expression.this == exp.DataType.Type.ARRAY: -102 return f"{self.expressions(expression, flat=True)}[]" -103 return self.datatype_sql(expression) -104 +100 +101def _datatype_sql(self, expression): +102 if expression.this == exp.DataType.Type.ARRAY: +103 return f"{self.expressions(expression, flat=True)}[]" +104 return self.datatype_sql(expression) 105 -106def _auto_increment_to_serial(expression): -107 auto = expression.find(exp.AutoIncrementColumnConstraint) -108 -109 if auto: -110 expression = expression.copy() -111 expression.args["constraints"].remove(auto.parent) -112 kind = expression.args["kind"] -113 -114 if kind.this == exp.DataType.Type.INT: -115 kind.replace(exp.DataType(this=exp.DataType.Type.SERIAL)) -116 elif kind.this == exp.DataType.Type.SMALLINT: -117 kind.replace(exp.DataType(this=exp.DataType.Type.SMALLSERIAL)) -118 elif kind.this == exp.DataType.Type.BIGINT: -119 kind.replace(exp.DataType(this=exp.DataType.Type.BIGSERIAL)) -120 -121 return expression -122 +106 +107def _auto_increment_to_serial(expression): +108 auto = expression.find(exp.AutoIncrementColumnConstraint) +109 +110 if auto: +111 expression = expression.copy() +112 expression.args["constraints"].remove(auto.parent) +113 kind = expression.args["kind"] +114 +115 if kind.this == exp.DataType.Type.INT: +116 kind.replace(exp.DataType(this=exp.DataType.Type.SERIAL)) +117 elif kind.this == exp.DataType.Type.SMALLINT: +118 kind.replace(exp.DataType(this=exp.DataType.Type.SMALLSERIAL)) +119 elif kind.this == exp.DataType.Type.BIGINT: +120 kind.replace(exp.DataType(this=exp.DataType.Type.BIGSERIAL)) +121 +122 return expression 123 -124def _serial_to_generated(expression): -125 kind = expression.args["kind"] -126 -127 if kind.this == exp.DataType.Type.SERIAL: -128 data_type = exp.DataType(this=exp.DataType.Type.INT) -129 elif kind.this == exp.DataType.Type.SMALLSERIAL: -130 data_type = exp.DataType(this=exp.DataType.Type.SMALLINT) -131 elif kind.this == exp.DataType.Type.BIGSERIAL: -132 data_type = exp.DataType(this=exp.DataType.Type.BIGINT) -133 else: -134 data_type = None -135 -136 if data_type: -137 expression = expression.copy() -138 expression.args["kind"].replace(data_type) -139 constraints = expression.args["constraints"] -140 generated = exp.ColumnConstraint(kind=exp.GeneratedAsIdentityColumnConstraint(this=False)) -141 notnull = exp.ColumnConstraint(kind=exp.NotNullColumnConstraint()) -142 if notnull not in constraints: -143 constraints.insert(0, notnull) -144 if generated not in constraints: -145 constraints.insert(0, generated) -146 -147 return expression -148 +124 +125def _serial_to_generated(expression): +126 kind = expression.args["kind"] +127 +128 if kind.this == exp.DataType.Type.SERIAL: +129 data_type = exp.DataType(this=exp.DataType.Type.INT) +130 elif kind.this == exp.DataType.Type.SMALLSERIAL: +131 data_type = exp.DataType(this=exp.DataType.Type.SMALLINT) +132 elif kind.this == exp.DataType.Type.BIGSERIAL: +133 data_type = exp.DataType(this=exp.DataType.Type.BIGINT) +134 else: +135 data_type = None +136 +137 if data_type: +138 expression = expression.copy() +139 expression.args["kind"].replace(data_type) +140 constraints = expression.args["constraints"] +141 generated = exp.ColumnConstraint(kind=exp.GeneratedAsIdentityColumnConstraint(this=False)) +142 notnull = exp.ColumnConstraint(kind=exp.NotNullColumnConstraint()) +143 if notnull not in constraints: +144 constraints.insert(0, notnull) +145 if generated not in constraints: +146 constraints.insert(0, generated) +147 +148 return expression 149 -150def _generate_series(args): -151 # The goal is to convert step values like '1 day' or INTERVAL '1 day' into INTERVAL '1' day -152 step = seq_get(args, 2) -153 -154 if step is None: -155 # Postgres allows calls with just two arguments -- the "step" argument defaults to 1 -156 return exp.GenerateSeries.from_arg_list(args) -157 -158 if step.is_string: -159 args[2] = exp.to_interval(step.this) -160 elif isinstance(step, exp.Interval) and not step.args.get("unit"): -161 args[2] = exp.to_interval(step.this.this) -162 -163 return exp.GenerateSeries.from_arg_list(args) -164 +150 +151def _generate_series(args): +152 # The goal is to convert step values like '1 day' or INTERVAL '1 day' into INTERVAL '1' day +153 step = seq_get(args, 2) +154 +155 if step is None: +156 # Postgres allows calls with just two arguments -- the "step" argument defaults to 1 +157 return exp.GenerateSeries.from_arg_list(args) +158 +159 if step.is_string: +160 args[2] = exp.to_interval(step.this) +161 elif isinstance(step, exp.Interval) and not step.args.get("unit"): +162 args[2] = exp.to_interval(step.this.this) +163 +164 return exp.GenerateSeries.from_arg_list(args) 165 -166def _to_timestamp(args): -167 # TO_TIMESTAMP accepts either a single double argument or (text, text) -168 if len(args) == 1: -169 # https://www.postgresql.org/docs/current/functions-datetime.html#FUNCTIONS-DATETIME-TABLE -170 return exp.UnixToTime.from_arg_list(args) -171 # https://www.postgresql.org/docs/current/functions-formatting.html -172 return format_time_lambda(exp.StrToTime, "postgres")(args) -173 +166 +167def _to_timestamp(args): +168 # TO_TIMESTAMP accepts either a single double argument or (text, text) +169 if len(args) == 1: +170 # https://www.postgresql.org/docs/current/functions-datetime.html#FUNCTIONS-DATETIME-TABLE +171 return exp.UnixToTime.from_arg_list(args) +172 # https://www.postgresql.org/docs/current/functions-formatting.html +173 return format_time_lambda(exp.StrToTime, "postgres")(args) 174 -175class Postgres(Dialect): -176 null_ordering = "nulls_are_large" -177 time_format = "'YYYY-MM-DD HH24:MI:SS'" -178 time_mapping = { -179 "AM": "%p", -180 "PM": "%p", -181 "D": "%u", # 1-based day of week -182 "DD": "%d", # day of month -183 "DDD": "%j", # zero padded day of year -184 "FMDD": "%-d", # - is no leading zero for Python; same for FM in postgres -185 "FMDDD": "%-j", # day of year -186 "FMHH12": "%-I", # 9 -187 "FMHH24": "%-H", # 9 -188 "FMMI": "%-M", # Minute -189 "FMMM": "%-m", # 1 -190 "FMSS": "%-S", # Second -191 "HH12": "%I", # 09 -192 "HH24": "%H", # 09 -193 "MI": "%M", # zero padded minute -194 "MM": "%m", # 01 -195 "OF": "%z", # utc offset -196 "SS": "%S", # zero padded second -197 "TMDay": "%A", # TM is locale dependent -198 "TMDy": "%a", -199 "TMMon": "%b", # Sep -200 "TMMonth": "%B", # September -201 "TZ": "%Z", # uppercase timezone name -202 "US": "%f", # zero padded microsecond -203 "WW": "%U", # 1-based week of year -204 "YY": "%y", # 15 -205 "YYYY": "%Y", # 2015 -206 } -207 -208 class Tokenizer(tokens.Tokenizer): -209 QUOTES = ["'", "$$"] -210 -211 BIT_STRINGS = [("b'", "'"), ("B'", "'")] -212 HEX_STRINGS = [("x'", "'"), ("X'", "'")] -213 BYTE_STRINGS = [("e'", "'"), ("E'", "'")] -214 -215 KEYWORDS = { -216 **tokens.Tokenizer.KEYWORDS, -217 "~~": TokenType.LIKE, -218 "~~*": TokenType.ILIKE, -219 "~*": TokenType.IRLIKE, -220 "~": TokenType.RLIKE, -221 "BEGIN": TokenType.COMMAND, -222 "BEGIN TRANSACTION": TokenType.BEGIN, -223 "BIGSERIAL": TokenType.BIGSERIAL, -224 "CHARACTER VARYING": TokenType.VARCHAR, -225 "DECLARE": TokenType.COMMAND, -226 "DO": TokenType.COMMAND, -227 "HSTORE": TokenType.HSTORE, -228 "JSONB": TokenType.JSONB, -229 "REFRESH": TokenType.COMMAND, -230 "REINDEX": TokenType.COMMAND, -231 "RESET": TokenType.COMMAND, -232 "REVOKE": TokenType.COMMAND, -233 "SERIAL": TokenType.SERIAL, -234 "SMALLSERIAL": TokenType.SMALLSERIAL, -235 "TEMP": TokenType.TEMPORARY, -236 "UUID": TokenType.UUID, -237 "CSTRING": TokenType.PSEUDO_TYPE, -238 } -239 -240 SINGLE_TOKENS = { -241 **tokens.Tokenizer.SINGLE_TOKENS, -242 "$": TokenType.PARAMETER, -243 } -244 -245 class Parser(parser.Parser): -246 STRICT_CAST = False -247 -248 FUNCTIONS = { -249 **parser.Parser.FUNCTIONS, # type: ignore -250 "NOW": exp.CurrentTimestamp.from_arg_list, -251 "TO_TIMESTAMP": _to_timestamp, -252 "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"), -253 "GENERATE_SERIES": _generate_series, -254 } -255 -256 BITWISE = { -257 **parser.Parser.BITWISE, # type: ignore -258 TokenType.HASH: exp.BitwiseXor, -259 } -260 -261 FACTOR = { -262 **parser.Parser.FACTOR, # type: ignore -263 TokenType.CARET: exp.Pow, -264 } -265 -266 class Generator(generator.Generator): -267 LOCKING_READS_SUPPORTED = True -268 PARAMETER_TOKEN = "$" -269 -270 TYPE_MAPPING = { -271 **generator.Generator.TYPE_MAPPING, # type: ignore -272 exp.DataType.Type.TINYINT: "SMALLINT", -273 exp.DataType.Type.FLOAT: "REAL", -274 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", -275 exp.DataType.Type.BINARY: "BYTEA", -276 exp.DataType.Type.VARBINARY: "BYTEA", -277 exp.DataType.Type.DATETIME: "TIMESTAMP", -278 } -279 -280 TRANSFORMS = { -281 **generator.Generator.TRANSFORMS, # type: ignore -282 exp.BitwiseXor: lambda self, e: self.binary(e, "#"), -283 exp.ColumnDef: preprocess( -284 [ -285 _auto_increment_to_serial, -286 _serial_to_generated, -287 ], -288 delegate("columndef_sql"), -289 ), -290 exp.JSONExtract: arrow_json_extract_sql, -291 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, -292 exp.JSONBExtract: lambda self, e: self.binary(e, "#>"), -293 exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"), -294 exp.JSONBContains: lambda self, e: self.binary(e, "?"), -295 exp.Pow: lambda self, e: self.binary(e, "^"), -296 exp.CurrentDate: no_paren_current_date_sql, -297 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", -298 exp.DateAdd: _date_add_sql("+"), -299 exp.DateSub: _date_add_sql("-"), -300 exp.DateDiff: _date_diff_sql, -301 exp.LogicalOr: rename_func("BOOL_OR"), +175 +176class Postgres(Dialect): +177 null_ordering = "nulls_are_large" +178 time_format = "'YYYY-MM-DD HH24:MI:SS'" +179 time_mapping = { +180 "AM": "%p", +181 "PM": "%p", +182 "D": "%u", # 1-based day of week +183 "DD": "%d", # day of month +184 "DDD": "%j", # zero padded day of year +185 "FMDD": "%-d", # - is no leading zero for Python; same for FM in postgres +186 "FMDDD": "%-j", # day of year +187 "FMHH12": "%-I", # 9 +188 "FMHH24": "%-H", # 9 +189 "FMMI": "%-M", # Minute +190 "FMMM": "%-m", # 1 +191 "FMSS": "%-S", # Second +192 "HH12": "%I", # 09 +193 "HH24": "%H", # 09 +194 "MI": "%M", # zero padded minute +195 "MM": "%m", # 01 +196 "OF": "%z", # utc offset +197 "SS": "%S", # zero padded second +198 "TMDay": "%A", # TM is locale dependent +199 "TMDy": "%a", +200 "TMMon": "%b", # Sep +201 "TMMonth": "%B", # September +202 "TZ": "%Z", # uppercase timezone name +203 "US": "%f", # zero padded microsecond +204 "WW": "%U", # 1-based week of year +205 "YY": "%y", # 15 +206 "YYYY": "%Y", # 2015 +207 } +208 +209 class Tokenizer(tokens.Tokenizer): +210 QUOTES = ["'", "$$"] +211 +212 BIT_STRINGS = [("b'", "'"), ("B'", "'")] +213 HEX_STRINGS = [("x'", "'"), ("X'", "'")] +214 BYTE_STRINGS = [("e'", "'"), ("E'", "'")] +215 +216 KEYWORDS = { +217 **tokens.Tokenizer.KEYWORDS, +218 "~~": TokenType.LIKE, +219 "~~*": TokenType.ILIKE, +220 "~*": TokenType.IRLIKE, +221 "~": TokenType.RLIKE, +222 "BEGIN": TokenType.COMMAND, +223 "BEGIN TRANSACTION": TokenType.BEGIN, +224 "BIGSERIAL": TokenType.BIGSERIAL, +225 "CHARACTER VARYING": TokenType.VARCHAR, +226 "DECLARE": TokenType.COMMAND, +227 "DO": TokenType.COMMAND, +228 "HSTORE": TokenType.HSTORE, +229 "JSONB": TokenType.JSONB, +230 "REFRESH": TokenType.COMMAND, +231 "REINDEX": TokenType.COMMAND, +232 "RESET": TokenType.COMMAND, +233 "RETURNING": TokenType.RETURNING, +234 "REVOKE": TokenType.COMMAND, +235 "SERIAL": TokenType.SERIAL, +236 "SMALLSERIAL": TokenType.SMALLSERIAL, +237 "TEMP": TokenType.TEMPORARY, +238 "UUID": TokenType.UUID, +239 "CSTRING": TokenType.PSEUDO_TYPE, +240 } +241 +242 SINGLE_TOKENS = { +243 **tokens.Tokenizer.SINGLE_TOKENS, +244 "$": TokenType.PARAMETER, +245 } +246 +247 class Parser(parser.Parser): +248 STRICT_CAST = False +249 +250 FUNCTIONS = { +251 **parser.Parser.FUNCTIONS, # type: ignore +252 "NOW": exp.CurrentTimestamp.from_arg_list, +253 "TO_TIMESTAMP": _to_timestamp, +254 "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"), +255 "GENERATE_SERIES": _generate_series, +256 } +257 +258 BITWISE = { +259 **parser.Parser.BITWISE, # type: ignore +260 TokenType.HASH: exp.BitwiseXor, +261 } +262 +263 FACTOR = {**parser.Parser.FACTOR, TokenType.CARET: exp.Pow} +264 +265 class Generator(generator.Generator): +266 LOCKING_READS_SUPPORTED = True +267 PARAMETER_TOKEN = "$" +268 +269 TYPE_MAPPING = { +270 **generator.Generator.TYPE_MAPPING, # type: ignore +271 exp.DataType.Type.TINYINT: "SMALLINT", +272 exp.DataType.Type.FLOAT: "REAL", +273 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", +274 exp.DataType.Type.BINARY: "BYTEA", +275 exp.DataType.Type.VARBINARY: "BYTEA", +276 exp.DataType.Type.DATETIME: "TIMESTAMP", +277 } +278 +279 TRANSFORMS = { +280 **generator.Generator.TRANSFORMS, # type: ignore +281 exp.BitwiseXor: lambda self, e: self.binary(e, "#"), +282 exp.ColumnDef: preprocess( +283 [ +284 _auto_increment_to_serial, +285 _serial_to_generated, +286 ], +287 delegate("columndef_sql"), +288 ), +289 exp.JSONExtract: arrow_json_extract_sql, +290 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, +291 exp.JSONBExtract: lambda self, e: self.binary(e, "#>"), +292 exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"), +293 exp.JSONBContains: lambda self, e: self.binary(e, "?"), +294 exp.Pow: lambda self, e: self.binary(e, "^"), +295 exp.CurrentDate: no_paren_current_date_sql, +296 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", +297 exp.DateAdd: _date_add_sql("+"), +298 exp.DateSub: _date_add_sql("-"), +299 exp.DateDiff: _date_diff_sql, +300 exp.LogicalOr: rename_func("BOOL_OR"), +301 exp.Min: min_or_least, 302 exp.RegexpLike: lambda self, e: self.binary(e, "~"), 303 exp.RegexpILike: lambda self, e: self.binary(e, "~*"), 304 exp.StrPosition: str_position_sql, @@ -415,133 +415,132 @@
    -
    176class Postgres(Dialect):
    -177    null_ordering = "nulls_are_large"
    -178    time_format = "'YYYY-MM-DD HH24:MI:SS'"
    -179    time_mapping = {
    -180        "AM": "%p",
    -181        "PM": "%p",
    -182        "D": "%u",  # 1-based day of week
    -183        "DD": "%d",  # day of month
    -184        "DDD": "%j",  # zero padded day of year
    -185        "FMDD": "%-d",  # - is no leading zero for Python; same for FM in postgres
    -186        "FMDDD": "%-j",  # day of year
    -187        "FMHH12": "%-I",  # 9
    -188        "FMHH24": "%-H",  # 9
    -189        "FMMI": "%-M",  # Minute
    -190        "FMMM": "%-m",  # 1
    -191        "FMSS": "%-S",  # Second
    -192        "HH12": "%I",  # 09
    -193        "HH24": "%H",  # 09
    -194        "MI": "%M",  # zero padded minute
    -195        "MM": "%m",  # 01
    -196        "OF": "%z",  # utc offset
    -197        "SS": "%S",  # zero padded second
    -198        "TMDay": "%A",  # TM is locale dependent
    -199        "TMDy": "%a",
    -200        "TMMon": "%b",  # Sep
    -201        "TMMonth": "%B",  # September
    -202        "TZ": "%Z",  # uppercase timezone name
    -203        "US": "%f",  # zero padded microsecond
    -204        "WW": "%U",  # 1-based week of year
    -205        "YY": "%y",  # 15
    -206        "YYYY": "%Y",  # 2015
    -207    }
    -208
    -209    class Tokenizer(tokens.Tokenizer):
    -210        QUOTES = ["'", "$$"]
    -211
    -212        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
    -213        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
    -214        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
    -215
    -216        KEYWORDS = {
    -217            **tokens.Tokenizer.KEYWORDS,
    -218            "~~": TokenType.LIKE,
    -219            "~~*": TokenType.ILIKE,
    -220            "~*": TokenType.IRLIKE,
    -221            "~": TokenType.RLIKE,
    -222            "BEGIN": TokenType.COMMAND,
    -223            "BEGIN TRANSACTION": TokenType.BEGIN,
    -224            "BIGSERIAL": TokenType.BIGSERIAL,
    -225            "CHARACTER VARYING": TokenType.VARCHAR,
    -226            "DECLARE": TokenType.COMMAND,
    -227            "DO": TokenType.COMMAND,
    -228            "HSTORE": TokenType.HSTORE,
    -229            "JSONB": TokenType.JSONB,
    -230            "REFRESH": TokenType.COMMAND,
    -231            "REINDEX": TokenType.COMMAND,
    -232            "RESET": TokenType.COMMAND,
    -233            "REVOKE": TokenType.COMMAND,
    -234            "SERIAL": TokenType.SERIAL,
    -235            "SMALLSERIAL": TokenType.SMALLSERIAL,
    -236            "TEMP": TokenType.TEMPORARY,
    -237            "UUID": TokenType.UUID,
    -238            "CSTRING": TokenType.PSEUDO_TYPE,
    -239        }
    -240
    -241        SINGLE_TOKENS = {
    -242            **tokens.Tokenizer.SINGLE_TOKENS,
    -243            "$": TokenType.PARAMETER,
    -244        }
    -245
    -246    class Parser(parser.Parser):
    -247        STRICT_CAST = False
    -248
    -249        FUNCTIONS = {
    -250            **parser.Parser.FUNCTIONS,  # type: ignore
    -251            "NOW": exp.CurrentTimestamp.from_arg_list,
    -252            "TO_TIMESTAMP": _to_timestamp,
    -253            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
    -254            "GENERATE_SERIES": _generate_series,
    -255        }
    -256
    -257        BITWISE = {
    -258            **parser.Parser.BITWISE,  # type: ignore
    -259            TokenType.HASH: exp.BitwiseXor,
    -260        }
    -261
    -262        FACTOR = {
    -263            **parser.Parser.FACTOR,  # type: ignore
    -264            TokenType.CARET: exp.Pow,
    -265        }
    -266
    -267    class Generator(generator.Generator):
    -268        LOCKING_READS_SUPPORTED = True
    -269        PARAMETER_TOKEN = "$"
    -270
    -271        TYPE_MAPPING = {
    -272            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -273            exp.DataType.Type.TINYINT: "SMALLINT",
    -274            exp.DataType.Type.FLOAT: "REAL",
    -275            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    -276            exp.DataType.Type.BINARY: "BYTEA",
    -277            exp.DataType.Type.VARBINARY: "BYTEA",
    -278            exp.DataType.Type.DATETIME: "TIMESTAMP",
    -279        }
    -280
    -281        TRANSFORMS = {
    -282            **generator.Generator.TRANSFORMS,  # type: ignore
    -283            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
    -284            exp.ColumnDef: preprocess(
    -285                [
    -286                    _auto_increment_to_serial,
    -287                    _serial_to_generated,
    -288                ],
    -289                delegate("columndef_sql"),
    -290            ),
    -291            exp.JSONExtract: arrow_json_extract_sql,
    -292            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    -293            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
    -294            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
    -295            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
    -296            exp.Pow: lambda self, e: self.binary(e, "^"),
    -297            exp.CurrentDate: no_paren_current_date_sql,
    -298            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    -299            exp.DateAdd: _date_add_sql("+"),
    -300            exp.DateSub: _date_add_sql("-"),
    -301            exp.DateDiff: _date_diff_sql,
    -302            exp.LogicalOr: rename_func("BOOL_OR"),
    +            
    177class Postgres(Dialect):
    +178    null_ordering = "nulls_are_large"
    +179    time_format = "'YYYY-MM-DD HH24:MI:SS'"
    +180    time_mapping = {
    +181        "AM": "%p",
    +182        "PM": "%p",
    +183        "D": "%u",  # 1-based day of week
    +184        "DD": "%d",  # day of month
    +185        "DDD": "%j",  # zero padded day of year
    +186        "FMDD": "%-d",  # - is no leading zero for Python; same for FM in postgres
    +187        "FMDDD": "%-j",  # day of year
    +188        "FMHH12": "%-I",  # 9
    +189        "FMHH24": "%-H",  # 9
    +190        "FMMI": "%-M",  # Minute
    +191        "FMMM": "%-m",  # 1
    +192        "FMSS": "%-S",  # Second
    +193        "HH12": "%I",  # 09
    +194        "HH24": "%H",  # 09
    +195        "MI": "%M",  # zero padded minute
    +196        "MM": "%m",  # 01
    +197        "OF": "%z",  # utc offset
    +198        "SS": "%S",  # zero padded second
    +199        "TMDay": "%A",  # TM is locale dependent
    +200        "TMDy": "%a",
    +201        "TMMon": "%b",  # Sep
    +202        "TMMonth": "%B",  # September
    +203        "TZ": "%Z",  # uppercase timezone name
    +204        "US": "%f",  # zero padded microsecond
    +205        "WW": "%U",  # 1-based week of year
    +206        "YY": "%y",  # 15
    +207        "YYYY": "%Y",  # 2015
    +208    }
    +209
    +210    class Tokenizer(tokens.Tokenizer):
    +211        QUOTES = ["'", "$$"]
    +212
    +213        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
    +214        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
    +215        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
    +216
    +217        KEYWORDS = {
    +218            **tokens.Tokenizer.KEYWORDS,
    +219            "~~": TokenType.LIKE,
    +220            "~~*": TokenType.ILIKE,
    +221            "~*": TokenType.IRLIKE,
    +222            "~": TokenType.RLIKE,
    +223            "BEGIN": TokenType.COMMAND,
    +224            "BEGIN TRANSACTION": TokenType.BEGIN,
    +225            "BIGSERIAL": TokenType.BIGSERIAL,
    +226            "CHARACTER VARYING": TokenType.VARCHAR,
    +227            "DECLARE": TokenType.COMMAND,
    +228            "DO": TokenType.COMMAND,
    +229            "HSTORE": TokenType.HSTORE,
    +230            "JSONB": TokenType.JSONB,
    +231            "REFRESH": TokenType.COMMAND,
    +232            "REINDEX": TokenType.COMMAND,
    +233            "RESET": TokenType.COMMAND,
    +234            "RETURNING": TokenType.RETURNING,
    +235            "REVOKE": TokenType.COMMAND,
    +236            "SERIAL": TokenType.SERIAL,
    +237            "SMALLSERIAL": TokenType.SMALLSERIAL,
    +238            "TEMP": TokenType.TEMPORARY,
    +239            "UUID": TokenType.UUID,
    +240            "CSTRING": TokenType.PSEUDO_TYPE,
    +241        }
    +242
    +243        SINGLE_TOKENS = {
    +244            **tokens.Tokenizer.SINGLE_TOKENS,
    +245            "$": TokenType.PARAMETER,
    +246        }
    +247
    +248    class Parser(parser.Parser):
    +249        STRICT_CAST = False
    +250
    +251        FUNCTIONS = {
    +252            **parser.Parser.FUNCTIONS,  # type: ignore
    +253            "NOW": exp.CurrentTimestamp.from_arg_list,
    +254            "TO_TIMESTAMP": _to_timestamp,
    +255            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
    +256            "GENERATE_SERIES": _generate_series,
    +257        }
    +258
    +259        BITWISE = {
    +260            **parser.Parser.BITWISE,  # type: ignore
    +261            TokenType.HASH: exp.BitwiseXor,
    +262        }
    +263
    +264        FACTOR = {**parser.Parser.FACTOR, TokenType.CARET: exp.Pow}
    +265
    +266    class Generator(generator.Generator):
    +267        LOCKING_READS_SUPPORTED = True
    +268        PARAMETER_TOKEN = "$"
    +269
    +270        TYPE_MAPPING = {
    +271            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +272            exp.DataType.Type.TINYINT: "SMALLINT",
    +273            exp.DataType.Type.FLOAT: "REAL",
    +274            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    +275            exp.DataType.Type.BINARY: "BYTEA",
    +276            exp.DataType.Type.VARBINARY: "BYTEA",
    +277            exp.DataType.Type.DATETIME: "TIMESTAMP",
    +278        }
    +279
    +280        TRANSFORMS = {
    +281            **generator.Generator.TRANSFORMS,  # type: ignore
    +282            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
    +283            exp.ColumnDef: preprocess(
    +284                [
    +285                    _auto_increment_to_serial,
    +286                    _serial_to_generated,
    +287                ],
    +288                delegate("columndef_sql"),
    +289            ),
    +290            exp.JSONExtract: arrow_json_extract_sql,
    +291            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    +292            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
    +293            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
    +294            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
    +295            exp.Pow: lambda self, e: self.binary(e, "^"),
    +296            exp.CurrentDate: no_paren_current_date_sql,
    +297            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    +298            exp.DateAdd: _date_add_sql("+"),
    +299            exp.DateSub: _date_add_sql("-"),
    +300            exp.DateDiff: _date_diff_sql,
    +301            exp.LogicalOr: rename_func("BOOL_OR"),
    +302            exp.Min: min_or_least,
     303            exp.RegexpLike: lambda self, e: self.binary(e, "~"),
     304            exp.RegexpILike: lambda self, e: self.binary(e, "~*"),
     305            exp.StrPosition: str_position_sql,
    @@ -597,42 +596,43 @@
     
         
    -
    209    class Tokenizer(tokens.Tokenizer):
    -210        QUOTES = ["'", "$$"]
    -211
    -212        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
    -213        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
    -214        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
    -215
    -216        KEYWORDS = {
    -217            **tokens.Tokenizer.KEYWORDS,
    -218            "~~": TokenType.LIKE,
    -219            "~~*": TokenType.ILIKE,
    -220            "~*": TokenType.IRLIKE,
    -221            "~": TokenType.RLIKE,
    -222            "BEGIN": TokenType.COMMAND,
    -223            "BEGIN TRANSACTION": TokenType.BEGIN,
    -224            "BIGSERIAL": TokenType.BIGSERIAL,
    -225            "CHARACTER VARYING": TokenType.VARCHAR,
    -226            "DECLARE": TokenType.COMMAND,
    -227            "DO": TokenType.COMMAND,
    -228            "HSTORE": TokenType.HSTORE,
    -229            "JSONB": TokenType.JSONB,
    -230            "REFRESH": TokenType.COMMAND,
    -231            "REINDEX": TokenType.COMMAND,
    -232            "RESET": TokenType.COMMAND,
    -233            "REVOKE": TokenType.COMMAND,
    -234            "SERIAL": TokenType.SERIAL,
    -235            "SMALLSERIAL": TokenType.SMALLSERIAL,
    -236            "TEMP": TokenType.TEMPORARY,
    -237            "UUID": TokenType.UUID,
    -238            "CSTRING": TokenType.PSEUDO_TYPE,
    -239        }
    -240
    -241        SINGLE_TOKENS = {
    -242            **tokens.Tokenizer.SINGLE_TOKENS,
    -243            "$": TokenType.PARAMETER,
    -244        }
    +            
    210    class Tokenizer(tokens.Tokenizer):
    +211        QUOTES = ["'", "$$"]
    +212
    +213        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
    +214        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
    +215        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
    +216
    +217        KEYWORDS = {
    +218            **tokens.Tokenizer.KEYWORDS,
    +219            "~~": TokenType.LIKE,
    +220            "~~*": TokenType.ILIKE,
    +221            "~*": TokenType.IRLIKE,
    +222            "~": TokenType.RLIKE,
    +223            "BEGIN": TokenType.COMMAND,
    +224            "BEGIN TRANSACTION": TokenType.BEGIN,
    +225            "BIGSERIAL": TokenType.BIGSERIAL,
    +226            "CHARACTER VARYING": TokenType.VARCHAR,
    +227            "DECLARE": TokenType.COMMAND,
    +228            "DO": TokenType.COMMAND,
    +229            "HSTORE": TokenType.HSTORE,
    +230            "JSONB": TokenType.JSONB,
    +231            "REFRESH": TokenType.COMMAND,
    +232            "REINDEX": TokenType.COMMAND,
    +233            "RESET": TokenType.COMMAND,
    +234            "RETURNING": TokenType.RETURNING,
    +235            "REVOKE": TokenType.COMMAND,
    +236            "SERIAL": TokenType.SERIAL,
    +237            "SMALLSERIAL": TokenType.SMALLSERIAL,
    +238            "TEMP": TokenType.TEMPORARY,
    +239            "UUID": TokenType.UUID,
    +240            "CSTRING": TokenType.PSEUDO_TYPE,
    +241        }
    +242
    +243        SINGLE_TOKENS = {
    +244            **tokens.Tokenizer.SINGLE_TOKENS,
    +245            "$": TokenType.PARAMETER,
    +246        }
     
    @@ -660,26 +660,23 @@
    -
    246    class Parser(parser.Parser):
    -247        STRICT_CAST = False
    -248
    -249        FUNCTIONS = {
    -250            **parser.Parser.FUNCTIONS,  # type: ignore
    -251            "NOW": exp.CurrentTimestamp.from_arg_list,
    -252            "TO_TIMESTAMP": _to_timestamp,
    -253            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
    -254            "GENERATE_SERIES": _generate_series,
    -255        }
    -256
    -257        BITWISE = {
    -258            **parser.Parser.BITWISE,  # type: ignore
    -259            TokenType.HASH: exp.BitwiseXor,
    -260        }
    -261
    -262        FACTOR = {
    -263            **parser.Parser.FACTOR,  # type: ignore
    -264            TokenType.CARET: exp.Pow,
    -265        }
    +            
    248    class Parser(parser.Parser):
    +249        STRICT_CAST = False
    +250
    +251        FUNCTIONS = {
    +252            **parser.Parser.FUNCTIONS,  # type: ignore
    +253            "NOW": exp.CurrentTimestamp.from_arg_list,
    +254            "TO_TIMESTAMP": _to_timestamp,
    +255            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
    +256            "GENERATE_SERIES": _generate_series,
    +257        }
    +258
    +259        BITWISE = {
    +260            **parser.Parser.BITWISE,  # type: ignore
    +261            TokenType.HASH: exp.BitwiseXor,
    +262        }
    +263
    +264        FACTOR = {**parser.Parser.FACTOR, TokenType.CARET: exp.Pow}
     
    @@ -736,42 +733,43 @@ Default: "nulls_are_small"
    -
    267    class Generator(generator.Generator):
    -268        LOCKING_READS_SUPPORTED = True
    -269        PARAMETER_TOKEN = "$"
    -270
    -271        TYPE_MAPPING = {
    -272            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -273            exp.DataType.Type.TINYINT: "SMALLINT",
    -274            exp.DataType.Type.FLOAT: "REAL",
    -275            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    -276            exp.DataType.Type.BINARY: "BYTEA",
    -277            exp.DataType.Type.VARBINARY: "BYTEA",
    -278            exp.DataType.Type.DATETIME: "TIMESTAMP",
    -279        }
    -280
    -281        TRANSFORMS = {
    -282            **generator.Generator.TRANSFORMS,  # type: ignore
    -283            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
    -284            exp.ColumnDef: preprocess(
    -285                [
    -286                    _auto_increment_to_serial,
    -287                    _serial_to_generated,
    -288                ],
    -289                delegate("columndef_sql"),
    -290            ),
    -291            exp.JSONExtract: arrow_json_extract_sql,
    -292            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    -293            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
    -294            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
    -295            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
    -296            exp.Pow: lambda self, e: self.binary(e, "^"),
    -297            exp.CurrentDate: no_paren_current_date_sql,
    -298            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    -299            exp.DateAdd: _date_add_sql("+"),
    -300            exp.DateSub: _date_add_sql("-"),
    -301            exp.DateDiff: _date_diff_sql,
    -302            exp.LogicalOr: rename_func("BOOL_OR"),
    +            
    266    class Generator(generator.Generator):
    +267        LOCKING_READS_SUPPORTED = True
    +268        PARAMETER_TOKEN = "$"
    +269
    +270        TYPE_MAPPING = {
    +271            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +272            exp.DataType.Type.TINYINT: "SMALLINT",
    +273            exp.DataType.Type.FLOAT: "REAL",
    +274            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    +275            exp.DataType.Type.BINARY: "BYTEA",
    +276            exp.DataType.Type.VARBINARY: "BYTEA",
    +277            exp.DataType.Type.DATETIME: "TIMESTAMP",
    +278        }
    +279
    +280        TRANSFORMS = {
    +281            **generator.Generator.TRANSFORMS,  # type: ignore
    +282            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
    +283            exp.ColumnDef: preprocess(
    +284                [
    +285                    _auto_increment_to_serial,
    +286                    _serial_to_generated,
    +287                ],
    +288                delegate("columndef_sql"),
    +289            ),
    +290            exp.JSONExtract: arrow_json_extract_sql,
    +291            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    +292            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
    +293            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
    +294            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
    +295            exp.Pow: lambda self, e: self.binary(e, "^"),
    +296            exp.CurrentDate: no_paren_current_date_sql,
    +297            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    +298            exp.DateAdd: _date_add_sql("+"),
    +299            exp.DateSub: _date_add_sql("-"),
    +300            exp.DateDiff: _date_diff_sql,
    +301            exp.LogicalOr: rename_func("BOOL_OR"),
    +302            exp.Min: min_or_least,
     303            exp.RegexpLike: lambda self, e: self.binary(e, "~"),
     304            exp.RegexpILike: lambda self, e: self.binary(e, "~*"),
     305            exp.StrPosition: str_position_sql,
    @@ -914,6 +912,7 @@ Default: True
                     
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -1015,6 +1014,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/presto.html b/docs/sqlglot/dialects/presto.html index 540dd23..e7e323b 100644 --- a/docs/sqlglot/dialects/presto.html +++ b/docs/sqlglot/dialects/presto.html @@ -906,6 +906,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -1006,6 +1007,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/redshift.html b/docs/sqlglot/dialects/redshift.html index e6c68fc..790d909 100644 --- a/docs/sqlglot/dialects/redshift.html +++ b/docs/sqlglot/dialects/redshift.html @@ -144,88 +144,89 @@
    53 "SUPER": TokenType.SUPER, 54 "TIME": TokenType.TIMESTAMP, 55 "TIMETZ": TokenType.TIMESTAMPTZ, - 56 "UNLOAD": TokenType.COMMAND, - 57 "VARBYTE": TokenType.VARBINARY, - 58 } - 59 - 60 class Generator(Postgres.Generator): - 61 TYPE_MAPPING = { - 62 **Postgres.Generator.TYPE_MAPPING, # type: ignore - 63 exp.DataType.Type.BINARY: "VARBYTE", - 64 exp.DataType.Type.VARBINARY: "VARBYTE", - 65 exp.DataType.Type.INT: "INTEGER", - 66 } - 67 - 68 PROPERTIES_LOCATION = { - 69 **Postgres.Generator.PROPERTIES_LOCATION, # type: ignore - 70 exp.LikeProperty: exp.Properties.Location.POST_WITH, - 71 } - 72 - 73 TRANSFORMS = { - 74 **Postgres.Generator.TRANSFORMS, # type: ignore - 75 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore - 76 exp.DateDiff: lambda self, e: self.func( - 77 "DATEDIFF", e.args.get("unit") or "day", e.expression, e.this - 78 ), - 79 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", - 80 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", - 81 exp.DistStyleProperty: lambda self, e: self.naked_property(e), - 82 exp.Matches: rename_func("DECODE"), - 83 } - 84 - 85 def values_sql(self, expression: exp.Values) -> str: - 86 """ - 87 Converts `VALUES...` expression into a series of unions. - 88 - 89 Note: If you have a lot of unions then this will result in a large number of recursive statements to - 90 evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be - 91 very slow. - 92 """ - 93 if not isinstance(expression.unnest().parent, exp.From): - 94 return super().values_sql(expression) - 95 rows = [tuple_exp.expressions for tuple_exp in expression.expressions] - 96 selects = [] - 97 for i, row in enumerate(rows): - 98 if i == 0 and expression.alias: - 99 row = [ -100 exp.alias_(value, column_name) -101 for value, column_name in zip(row, expression.args["alias"].args["columns"]) -102 ] -103 selects.append(exp.Select(expressions=row)) -104 subquery_expression = selects[0] -105 if len(selects) > 1: -106 for select in selects[1:]: -107 subquery_expression = exp.union(subquery_expression, select, distinct=False) -108 return self.subquery_sql(subquery_expression.subquery(expression.alias)) -109 -110 def with_properties(self, properties: exp.Properties) -> str: -111 """Redshift doesn't have `WITH` as part of their with_properties so we remove it""" -112 return self.properties(properties, prefix=" ", suffix="") -113 -114 def renametable_sql(self, expression: exp.RenameTable) -> str: -115 """Redshift only supports defining the table name itself (not the db) when renaming tables""" -116 expression = expression.copy() -117 target_table = expression.this -118 for arg in target_table.args: -119 if arg != "this": -120 target_table.set(arg, None) -121 this = self.sql(expression, "this") -122 return f"RENAME TO {this}" -123 -124 def datatype_sql(self, expression: exp.DataType) -> str: -125 """ -126 Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean -127 VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type -128 without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert -129 `TEXT` to `VARCHAR`. -130 """ -131 if expression.this == exp.DataType.Type.TEXT: -132 expression = expression.copy() -133 expression.set("this", exp.DataType.Type.VARCHAR) -134 precision = expression.args.get("expressions") -135 if not precision: -136 expression.append("expressions", exp.Var(this="MAX")) -137 return super().datatype_sql(expression) + 56 "TOP": TokenType.TOP, + 57 "UNLOAD": TokenType.COMMAND, + 58 "VARBYTE": TokenType.VARBINARY, + 59 } + 60 + 61 class Generator(Postgres.Generator): + 62 TYPE_MAPPING = { + 63 **Postgres.Generator.TYPE_MAPPING, # type: ignore + 64 exp.DataType.Type.BINARY: "VARBYTE", + 65 exp.DataType.Type.VARBINARY: "VARBYTE", + 66 exp.DataType.Type.INT: "INTEGER", + 67 } + 68 + 69 PROPERTIES_LOCATION = { + 70 **Postgres.Generator.PROPERTIES_LOCATION, # type: ignore + 71 exp.LikeProperty: exp.Properties.Location.POST_WITH, + 72 } + 73 + 74 TRANSFORMS = { + 75 **Postgres.Generator.TRANSFORMS, # type: ignore + 76 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore + 77 exp.DateDiff: lambda self, e: self.func( + 78 "DATEDIFF", e.args.get("unit") or "day", e.expression, e.this + 79 ), + 80 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", + 81 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", + 82 exp.DistStyleProperty: lambda self, e: self.naked_property(e), + 83 exp.Matches: rename_func("DECODE"), + 84 } + 85 + 86 def values_sql(self, expression: exp.Values) -> str: + 87 """ + 88 Converts `VALUES...` expression into a series of unions. + 89 + 90 Note: If you have a lot of unions then this will result in a large number of recursive statements to + 91 evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be + 92 very slow. + 93 """ + 94 if not isinstance(expression.unnest().parent, exp.From): + 95 return super().values_sql(expression) + 96 rows = [tuple_exp.expressions for tuple_exp in expression.expressions] + 97 selects = [] + 98 for i, row in enumerate(rows): + 99 if i == 0 and expression.alias: +100 row = [ +101 exp.alias_(value, column_name) +102 for value, column_name in zip(row, expression.args["alias"].args["columns"]) +103 ] +104 selects.append(exp.Select(expressions=row)) +105 subquery_expression = selects[0] +106 if len(selects) > 1: +107 for select in selects[1:]: +108 subquery_expression = exp.union(subquery_expression, select, distinct=False) +109 return self.subquery_sql(subquery_expression.subquery(expression.alias)) +110 +111 def with_properties(self, properties: exp.Properties) -> str: +112 """Redshift doesn't have `WITH` as part of their with_properties so we remove it""" +113 return self.properties(properties, prefix=" ", suffix="") +114 +115 def renametable_sql(self, expression: exp.RenameTable) -> str: +116 """Redshift only supports defining the table name itself (not the db) when renaming tables""" +117 expression = expression.copy() +118 target_table = expression.this +119 for arg in target_table.args: +120 if arg != "this": +121 target_table.set(arg, None) +122 this = self.sql(expression, "this") +123 return f"RENAME TO {this}" +124 +125 def datatype_sql(self, expression: exp.DataType) -> str: +126 """ +127 Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean +128 VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type +129 without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert +130 `TEXT` to `VARCHAR`. +131 """ +132 if expression.this == exp.DataType.Type.TEXT: +133 expression = expression.copy() +134 expression.set("this", exp.DataType.Type.VARCHAR) +135 precision = expression.args.get("expressions") +136 if not precision: +137 expression.append("expressions", exp.Var(this="MAX")) +138 return super().datatype_sql(expression)
    @@ -285,88 +286,89 @@
    54 "SUPER": TokenType.SUPER, 55 "TIME": TokenType.TIMESTAMP, 56 "TIMETZ": TokenType.TIMESTAMPTZ, - 57 "UNLOAD": TokenType.COMMAND, - 58 "VARBYTE": TokenType.VARBINARY, - 59 } - 60 - 61 class Generator(Postgres.Generator): - 62 TYPE_MAPPING = { - 63 **Postgres.Generator.TYPE_MAPPING, # type: ignore - 64 exp.DataType.Type.BINARY: "VARBYTE", - 65 exp.DataType.Type.VARBINARY: "VARBYTE", - 66 exp.DataType.Type.INT: "INTEGER", - 67 } - 68 - 69 PROPERTIES_LOCATION = { - 70 **Postgres.Generator.PROPERTIES_LOCATION, # type: ignore - 71 exp.LikeProperty: exp.Properties.Location.POST_WITH, - 72 } - 73 - 74 TRANSFORMS = { - 75 **Postgres.Generator.TRANSFORMS, # type: ignore - 76 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore - 77 exp.DateDiff: lambda self, e: self.func( - 78 "DATEDIFF", e.args.get("unit") or "day", e.expression, e.this - 79 ), - 80 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", - 81 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", - 82 exp.DistStyleProperty: lambda self, e: self.naked_property(e), - 83 exp.Matches: rename_func("DECODE"), - 84 } - 85 - 86 def values_sql(self, expression: exp.Values) -> str: - 87 """ - 88 Converts `VALUES...` expression into a series of unions. - 89 - 90 Note: If you have a lot of unions then this will result in a large number of recursive statements to - 91 evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be - 92 very slow. - 93 """ - 94 if not isinstance(expression.unnest().parent, exp.From): - 95 return super().values_sql(expression) - 96 rows = [tuple_exp.expressions for tuple_exp in expression.expressions] - 97 selects = [] - 98 for i, row in enumerate(rows): - 99 if i == 0 and expression.alias: -100 row = [ -101 exp.alias_(value, column_name) -102 for value, column_name in zip(row, expression.args["alias"].args["columns"]) -103 ] -104 selects.append(exp.Select(expressions=row)) -105 subquery_expression = selects[0] -106 if len(selects) > 1: -107 for select in selects[1:]: -108 subquery_expression = exp.union(subquery_expression, select, distinct=False) -109 return self.subquery_sql(subquery_expression.subquery(expression.alias)) -110 -111 def with_properties(self, properties: exp.Properties) -> str: -112 """Redshift doesn't have `WITH` as part of their with_properties so we remove it""" -113 return self.properties(properties, prefix=" ", suffix="") -114 -115 def renametable_sql(self, expression: exp.RenameTable) -> str: -116 """Redshift only supports defining the table name itself (not the db) when renaming tables""" -117 expression = expression.copy() -118 target_table = expression.this -119 for arg in target_table.args: -120 if arg != "this": -121 target_table.set(arg, None) -122 this = self.sql(expression, "this") -123 return f"RENAME TO {this}" -124 -125 def datatype_sql(self, expression: exp.DataType) -> str: -126 """ -127 Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean -128 VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type -129 without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert -130 `TEXT` to `VARCHAR`. -131 """ -132 if expression.this == exp.DataType.Type.TEXT: -133 expression = expression.copy() -134 expression.set("this", exp.DataType.Type.VARCHAR) -135 precision = expression.args.get("expressions") -136 if not precision: -137 expression.append("expressions", exp.Var(this="MAX")) -138 return super().datatype_sql(expression) + 57 "TOP": TokenType.TOP, + 58 "UNLOAD": TokenType.COMMAND, + 59 "VARBYTE": TokenType.VARBINARY, + 60 } + 61 + 62 class Generator(Postgres.Generator): + 63 TYPE_MAPPING = { + 64 **Postgres.Generator.TYPE_MAPPING, # type: ignore + 65 exp.DataType.Type.BINARY: "VARBYTE", + 66 exp.DataType.Type.VARBINARY: "VARBYTE", + 67 exp.DataType.Type.INT: "INTEGER", + 68 } + 69 + 70 PROPERTIES_LOCATION = { + 71 **Postgres.Generator.PROPERTIES_LOCATION, # type: ignore + 72 exp.LikeProperty: exp.Properties.Location.POST_WITH, + 73 } + 74 + 75 TRANSFORMS = { + 76 **Postgres.Generator.TRANSFORMS, # type: ignore + 77 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore + 78 exp.DateDiff: lambda self, e: self.func( + 79 "DATEDIFF", e.args.get("unit") or "day", e.expression, e.this + 80 ), + 81 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", + 82 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", + 83 exp.DistStyleProperty: lambda self, e: self.naked_property(e), + 84 exp.Matches: rename_func("DECODE"), + 85 } + 86 + 87 def values_sql(self, expression: exp.Values) -> str: + 88 """ + 89 Converts `VALUES...` expression into a series of unions. + 90 + 91 Note: If you have a lot of unions then this will result in a large number of recursive statements to + 92 evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be + 93 very slow. + 94 """ + 95 if not isinstance(expression.unnest().parent, exp.From): + 96 return super().values_sql(expression) + 97 rows = [tuple_exp.expressions for tuple_exp in expression.expressions] + 98 selects = [] + 99 for i, row in enumerate(rows): +100 if i == 0 and expression.alias: +101 row = [ +102 exp.alias_(value, column_name) +103 for value, column_name in zip(row, expression.args["alias"].args["columns"]) +104 ] +105 selects.append(exp.Select(expressions=row)) +106 subquery_expression = selects[0] +107 if len(selects) > 1: +108 for select in selects[1:]: +109 subquery_expression = exp.union(subquery_expression, select, distinct=False) +110 return self.subquery_sql(subquery_expression.subquery(expression.alias)) +111 +112 def with_properties(self, properties: exp.Properties) -> str: +113 """Redshift doesn't have `WITH` as part of their with_properties so we remove it""" +114 return self.properties(properties, prefix=" ", suffix="") +115 +116 def renametable_sql(self, expression: exp.RenameTable) -> str: +117 """Redshift only supports defining the table name itself (not the db) when renaming tables""" +118 expression = expression.copy() +119 target_table = expression.this +120 for arg in target_table.args: +121 if arg != "this": +122 target_table.set(arg, None) +123 this = self.sql(expression, "this") +124 return f"RENAME TO {this}" +125 +126 def datatype_sql(self, expression: exp.DataType) -> str: +127 """ +128 Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean +129 VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type +130 without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert +131 `TEXT` to `VARCHAR`. +132 """ +133 if expression.this == exp.DataType.Type.TEXT: +134 expression = expression.copy() +135 expression.set("this", exp.DataType.Type.VARCHAR) +136 precision = expression.args.get("expressions") +137 if not precision: +138 expression.append("expressions", exp.Var(this="MAX")) +139 return super().datatype_sql(expression)
    @@ -491,9 +493,10 @@ Default: "nulls_are_small"
    54 "SUPER": TokenType.SUPER, 55 "TIME": TokenType.TIMESTAMP, 56 "TIMETZ": TokenType.TIMESTAMPTZ, -57 "UNLOAD": TokenType.COMMAND, -58 "VARBYTE": TokenType.VARBINARY, -59 } +57 "TOP": TokenType.TOP, +58 "UNLOAD": TokenType.COMMAND, +59 "VARBYTE": TokenType.VARBINARY, +60 }
    @@ -521,84 +524,84 @@ Default: "nulls_are_small" -
     61    class Generator(Postgres.Generator):
    - 62        TYPE_MAPPING = {
    - 63            **Postgres.Generator.TYPE_MAPPING,  # type: ignore
    - 64            exp.DataType.Type.BINARY: "VARBYTE",
    - 65            exp.DataType.Type.VARBINARY: "VARBYTE",
    - 66            exp.DataType.Type.INT: "INTEGER",
    - 67        }
    - 68
    - 69        PROPERTIES_LOCATION = {
    - 70            **Postgres.Generator.PROPERTIES_LOCATION,  # type: ignore
    - 71            exp.LikeProperty: exp.Properties.Location.POST_WITH,
    - 72        }
    - 73
    - 74        TRANSFORMS = {
    - 75            **Postgres.Generator.TRANSFORMS,  # type: ignore
    - 76            **transforms.ELIMINATE_DISTINCT_ON,  # type: ignore
    - 77            exp.DateDiff: lambda self, e: self.func(
    - 78                "DATEDIFF", e.args.get("unit") or "day", e.expression, e.this
    - 79            ),
    - 80            exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})",
    - 81            exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})",
    - 82            exp.DistStyleProperty: lambda self, e: self.naked_property(e),
    - 83            exp.Matches: rename_func("DECODE"),
    - 84        }
    - 85
    - 86        def values_sql(self, expression: exp.Values) -> str:
    - 87            """
    - 88            Converts `VALUES...` expression into a series of unions.
    - 89
    - 90            Note: If you have a lot of unions then this will result in a large number of recursive statements to
    - 91            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
    - 92            very slow.
    - 93            """
    - 94            if not isinstance(expression.unnest().parent, exp.From):
    - 95                return super().values_sql(expression)
    - 96            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
    - 97            selects = []
    - 98            for i, row in enumerate(rows):
    - 99                if i == 0 and expression.alias:
    -100                    row = [
    -101                        exp.alias_(value, column_name)
    -102                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
    -103                    ]
    -104                selects.append(exp.Select(expressions=row))
    -105            subquery_expression = selects[0]
    -106            if len(selects) > 1:
    -107                for select in selects[1:]:
    -108                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
    -109            return self.subquery_sql(subquery_expression.subquery(expression.alias))
    -110
    -111        def with_properties(self, properties: exp.Properties) -> str:
    -112            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
    -113            return self.properties(properties, prefix=" ", suffix="")
    -114
    -115        def renametable_sql(self, expression: exp.RenameTable) -> str:
    -116            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
    -117            expression = expression.copy()
    -118            target_table = expression.this
    -119            for arg in target_table.args:
    -120                if arg != "this":
    -121                    target_table.set(arg, None)
    -122            this = self.sql(expression, "this")
    -123            return f"RENAME TO {this}"
    -124
    -125        def datatype_sql(self, expression: exp.DataType) -> str:
    -126            """
    -127            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
    -128            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
    -129            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
    -130            `TEXT` to `VARCHAR`.
    -131            """
    -132            if expression.this == exp.DataType.Type.TEXT:
    -133                expression = expression.copy()
    -134                expression.set("this", exp.DataType.Type.VARCHAR)
    -135                precision = expression.args.get("expressions")
    -136                if not precision:
    -137                    expression.append("expressions", exp.Var(this="MAX"))
    -138            return super().datatype_sql(expression)
    +            
     62    class Generator(Postgres.Generator):
    + 63        TYPE_MAPPING = {
    + 64            **Postgres.Generator.TYPE_MAPPING,  # type: ignore
    + 65            exp.DataType.Type.BINARY: "VARBYTE",
    + 66            exp.DataType.Type.VARBINARY: "VARBYTE",
    + 67            exp.DataType.Type.INT: "INTEGER",
    + 68        }
    + 69
    + 70        PROPERTIES_LOCATION = {
    + 71            **Postgres.Generator.PROPERTIES_LOCATION,  # type: ignore
    + 72            exp.LikeProperty: exp.Properties.Location.POST_WITH,
    + 73        }
    + 74
    + 75        TRANSFORMS = {
    + 76            **Postgres.Generator.TRANSFORMS,  # type: ignore
    + 77            **transforms.ELIMINATE_DISTINCT_ON,  # type: ignore
    + 78            exp.DateDiff: lambda self, e: self.func(
    + 79                "DATEDIFF", e.args.get("unit") or "day", e.expression, e.this
    + 80            ),
    + 81            exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})",
    + 82            exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})",
    + 83            exp.DistStyleProperty: lambda self, e: self.naked_property(e),
    + 84            exp.Matches: rename_func("DECODE"),
    + 85        }
    + 86
    + 87        def values_sql(self, expression: exp.Values) -> str:
    + 88            """
    + 89            Converts `VALUES...` expression into a series of unions.
    + 90
    + 91            Note: If you have a lot of unions then this will result in a large number of recursive statements to
    + 92            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
    + 93            very slow.
    + 94            """
    + 95            if not isinstance(expression.unnest().parent, exp.From):
    + 96                return super().values_sql(expression)
    + 97            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
    + 98            selects = []
    + 99            for i, row in enumerate(rows):
    +100                if i == 0 and expression.alias:
    +101                    row = [
    +102                        exp.alias_(value, column_name)
    +103                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
    +104                    ]
    +105                selects.append(exp.Select(expressions=row))
    +106            subquery_expression = selects[0]
    +107            if len(selects) > 1:
    +108                for select in selects[1:]:
    +109                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
    +110            return self.subquery_sql(subquery_expression.subquery(expression.alias))
    +111
    +112        def with_properties(self, properties: exp.Properties) -> str:
    +113            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
    +114            return self.properties(properties, prefix=" ", suffix="")
    +115
    +116        def renametable_sql(self, expression: exp.RenameTable) -> str:
    +117            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
    +118            expression = expression.copy()
    +119            target_table = expression.this
    +120            for arg in target_table.args:
    +121                if arg != "this":
    +122                    target_table.set(arg, None)
    +123            this = self.sql(expression, "this")
    +124            return f"RENAME TO {this}"
    +125
    +126        def datatype_sql(self, expression: exp.DataType) -> str:
    +127            """
    +128            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
    +129            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
    +130            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
    +131            `TEXT` to `VARCHAR`.
    +132            """
    +133            if expression.this == exp.DataType.Type.TEXT:
    +134                expression = expression.copy()
    +135                expression.set("this", exp.DataType.Type.VARCHAR)
    +136                precision = expression.args.get("expressions")
    +137                if not precision:
    +138                    expression.append("expressions", exp.Var(this="MAX"))
    +139            return super().datatype_sql(expression)
     
    @@ -658,30 +661,30 @@ Default: True
    -
     86        def values_sql(self, expression: exp.Values) -> str:
    - 87            """
    - 88            Converts `VALUES...` expression into a series of unions.
    - 89
    - 90            Note: If you have a lot of unions then this will result in a large number of recursive statements to
    - 91            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
    - 92            very slow.
    - 93            """
    - 94            if not isinstance(expression.unnest().parent, exp.From):
    - 95                return super().values_sql(expression)
    - 96            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
    - 97            selects = []
    - 98            for i, row in enumerate(rows):
    - 99                if i == 0 and expression.alias:
    -100                    row = [
    -101                        exp.alias_(value, column_name)
    -102                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
    -103                    ]
    -104                selects.append(exp.Select(expressions=row))
    -105            subquery_expression = selects[0]
    -106            if len(selects) > 1:
    -107                for select in selects[1:]:
    -108                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
    -109            return self.subquery_sql(subquery_expression.subquery(expression.alias))
    +            
     87        def values_sql(self, expression: exp.Values) -> str:
    + 88            """
    + 89            Converts `VALUES...` expression into a series of unions.
    + 90
    + 91            Note: If you have a lot of unions then this will result in a large number of recursive statements to
    + 92            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
    + 93            very slow.
    + 94            """
    + 95            if not isinstance(expression.unnest().parent, exp.From):
    + 96                return super().values_sql(expression)
    + 97            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
    + 98            selects = []
    + 99            for i, row in enumerate(rows):
    +100                if i == 0 and expression.alias:
    +101                    row = [
    +102                        exp.alias_(value, column_name)
    +103                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
    +104                    ]
    +105                selects.append(exp.Select(expressions=row))
    +106            subquery_expression = selects[0]
    +107            if len(selects) > 1:
    +108                for select in selects[1:]:
    +109                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
    +110            return self.subquery_sql(subquery_expression.subquery(expression.alias))
     
    @@ -705,9 +708,9 @@ very slow.

    -
    111        def with_properties(self, properties: exp.Properties) -> str:
    -112            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
    -113            return self.properties(properties, prefix=" ", suffix="")
    +            
    112        def with_properties(self, properties: exp.Properties) -> str:
    +113            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
    +114            return self.properties(properties, prefix=" ", suffix="")
     
    @@ -727,15 +730,15 @@ very slow.

    -
    115        def renametable_sql(self, expression: exp.RenameTable) -> str:
    -116            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
    -117            expression = expression.copy()
    -118            target_table = expression.this
    -119            for arg in target_table.args:
    -120                if arg != "this":
    -121                    target_table.set(arg, None)
    -122            this = self.sql(expression, "this")
    -123            return f"RENAME TO {this}"
    +            
    116        def renametable_sql(self, expression: exp.RenameTable) -> str:
    +117            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
    +118            expression = expression.copy()
    +119            target_table = expression.this
    +120            for arg in target_table.args:
    +121                if arg != "this":
    +122                    target_table.set(arg, None)
    +123            this = self.sql(expression, "this")
    +124            return f"RENAME TO {this}"
     
    @@ -755,20 +758,20 @@ very slow.

    -
    125        def datatype_sql(self, expression: exp.DataType) -> str:
    -126            """
    -127            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
    -128            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
    -129            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
    -130            `TEXT` to `VARCHAR`.
    -131            """
    -132            if expression.this == exp.DataType.Type.TEXT:
    -133                expression = expression.copy()
    -134                expression.set("this", exp.DataType.Type.VARCHAR)
    -135                precision = expression.args.get("expressions")
    -136                if not precision:
    -137                    expression.append("expressions", exp.Var(this="MAX"))
    -138            return super().datatype_sql(expression)
    +            
    126        def datatype_sql(self, expression: exp.DataType) -> str:
    +127            """
    +128            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
    +129            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
    +130            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
    +131            `TEXT` to `VARCHAR`.
    +132            """
    +133            if expression.this == exp.DataType.Type.TEXT:
    +134                expression = expression.copy()
    +135                expression.set("this", exp.DataType.Type.VARCHAR)
    +136                precision = expression.args.get("expressions")
    +137                if not precision:
    +138                    expression.append("expressions", exp.Var(this="MAX"))
    +139            return super().datatype_sql(expression)
     
    @@ -850,6 +853,7 @@ without precision we convert it to VARCHAR(max) and if it does have
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -949,6 +953,7 @@ without precision we convert it to VARCHAR(max) and if it does have
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/snowflake.html b/docs/sqlglot/dialects/snowflake.html index 0149a5f..8963ac3 100644 --- a/docs/sqlglot/dialects/snowflake.html +++ b/docs/sqlglot/dialects/snowflake.html @@ -114,369 +114,386 @@
    8 datestrtodate_sql, 9 format_time_lambda, 10 inline_array_sql, - 11 rename_func, - 12 timestrtotime_sql, - 13 ts_or_ds_to_date_sql, - 14 var_map_sql, - 15) - 16from sqlglot.expressions import Literal - 17from sqlglot.helper import flatten, seq_get - 18from sqlglot.tokens import TokenType - 19 + 11 min_or_least, + 12 rename_func, + 13 timestrtotime_sql, + 14 ts_or_ds_to_date_sql, + 15 var_map_sql, + 16) + 17from sqlglot.expressions import Literal + 18from sqlglot.helper import flatten, seq_get + 19from sqlglot.tokens import TokenType 20 - 21def _check_int(s): - 22 if s[0] in ("-", "+"): - 23 return s[1:].isdigit() - 24 return s.isdigit() - 25 + 21 + 22def _check_int(s): + 23 if s[0] in ("-", "+"): + 24 return s[1:].isdigit() + 25 return s.isdigit() 26 - 27# from https://docs.snowflake.com/en/sql-reference/functions/to_timestamp.html - 28def _snowflake_to_timestamp(args): - 29 if len(args) == 2: - 30 first_arg, second_arg = args - 31 if second_arg.is_string: - 32 # case: <string_expr> [ , <format> ] - 33 return format_time_lambda(exp.StrToTime, "snowflake")(args) - 34 - 35 # case: <numeric_expr> [ , <scale> ] - 36 if second_arg.name not in ["0", "3", "9"]: - 37 raise ValueError( - 38 f"Scale for snowflake numeric timestamp is {second_arg}, but should be 0, 3, or 9" - 39 ) - 40 - 41 if second_arg.name == "0": - 42 timescale = exp.UnixToTime.SECONDS - 43 elif second_arg.name == "3": - 44 timescale = exp.UnixToTime.MILLIS - 45 elif second_arg.name == "9": - 46 timescale = exp.UnixToTime.MICROS - 47 - 48 return exp.UnixToTime(this=first_arg, scale=timescale) - 49 - 50 first_arg = seq_get(args, 0) - 51 if not isinstance(first_arg, Literal): - 52 # case: <variant_expr> - 53 return format_time_lambda(exp.StrToTime, "snowflake", default=True)(args) - 54 - 55 if first_arg.is_string: - 56 if _check_int(first_arg.this): - 57 # case: <integer> - 58 return exp.UnixToTime.from_arg_list(args) - 59 - 60 # case: <date_expr> - 61 return format_time_lambda(exp.StrToTime, "snowflake", default=True)(args) - 62 - 63 # case: <numeric_expr> - 64 return exp.UnixToTime.from_arg_list(args) - 65 + 27 + 28# from https://docs.snowflake.com/en/sql-reference/functions/to_timestamp.html + 29def _snowflake_to_timestamp(args): + 30 if len(args) == 2: + 31 first_arg, second_arg = args + 32 if second_arg.is_string: + 33 # case: <string_expr> [ , <format> ] + 34 return format_time_lambda(exp.StrToTime, "snowflake")(args) + 35 + 36 # case: <numeric_expr> [ , <scale> ] + 37 if second_arg.name not in ["0", "3", "9"]: + 38 raise ValueError( + 39 f"Scale for snowflake numeric timestamp is {second_arg}, but should be 0, 3, or 9" + 40 ) + 41 + 42 if second_arg.name == "0": + 43 timescale = exp.UnixToTime.SECONDS + 44 elif second_arg.name == "3": + 45 timescale = exp.UnixToTime.MILLIS + 46 elif second_arg.name == "9": + 47 timescale = exp.UnixToTime.MICROS + 48 + 49 return exp.UnixToTime(this=first_arg, scale=timescale) + 50 + 51 first_arg = seq_get(args, 0) + 52 if not isinstance(first_arg, Literal): + 53 # case: <variant_expr> + 54 return format_time_lambda(exp.StrToTime, "snowflake", default=True)(args) + 55 + 56 if first_arg.is_string: + 57 if _check_int(first_arg.this): + 58 # case: <integer> + 59 return exp.UnixToTime.from_arg_list(args) + 60 + 61 # case: <date_expr> + 62 return format_time_lambda(exp.StrToTime, "snowflake", default=True)(args) + 63 + 64 # case: <numeric_expr> + 65 return exp.UnixToTime.from_arg_list(args) 66 - 67def _unix_to_time_sql(self, expression): - 68 scale = expression.args.get("scale") - 69 timestamp = self.sql(expression, "this") - 70 if scale in [None, exp.UnixToTime.SECONDS]: - 71 return f"TO_TIMESTAMP({timestamp})" - 72 if scale == exp.UnixToTime.MILLIS: - 73 return f"TO_TIMESTAMP({timestamp}, 3)" - 74 if scale == exp.UnixToTime.MICROS: - 75 return f"TO_TIMESTAMP({timestamp}, 9)" - 76 - 77 raise ValueError("Improper scale for timestamp") - 78 + 67 + 68def _unix_to_time_sql(self, expression): + 69 scale = expression.args.get("scale") + 70 timestamp = self.sql(expression, "this") + 71 if scale in [None, exp.UnixToTime.SECONDS]: + 72 return f"TO_TIMESTAMP({timestamp})" + 73 if scale == exp.UnixToTime.MILLIS: + 74 return f"TO_TIMESTAMP({timestamp}, 3)" + 75 if scale == exp.UnixToTime.MICROS: + 76 return f"TO_TIMESTAMP({timestamp}, 9)" + 77 + 78 raise ValueError("Improper scale for timestamp") 79 - 80# https://docs.snowflake.com/en/sql-reference/functions/date_part.html - 81# https://docs.snowflake.com/en/sql-reference/functions-date-time.html#label-supported-date-time-parts - 82def _parse_date_part(self): - 83 this = self._parse_var() or self._parse_type() - 84 self._match(TokenType.COMMA) - 85 expression = self._parse_bitwise() - 86 - 87 name = this.name.upper() - 88 if name.startswith("EPOCH"): - 89 if name.startswith("EPOCH_MILLISECOND"): - 90 scale = 10**3 - 91 elif name.startswith("EPOCH_MICROSECOND"): - 92 scale = 10**6 - 93 elif name.startswith("EPOCH_NANOSECOND"): - 94 scale = 10**9 - 95 else: - 96 scale = None - 97 - 98 ts = self.expression(exp.Cast, this=expression, to=exp.DataType.build("TIMESTAMP")) - 99 to_unix = self.expression(exp.TimeToUnix, this=ts) -100 -101 if scale: -102 to_unix = exp.Mul(this=to_unix, expression=exp.Literal.number(scale)) -103 -104 return to_unix -105 -106 return self.expression(exp.Extract, this=this, expression=expression) -107 + 80 + 81# https://docs.snowflake.com/en/sql-reference/functions/date_part.html + 82# https://docs.snowflake.com/en/sql-reference/functions-date-time.html#label-supported-date-time-parts + 83def _parse_date_part(self): + 84 this = self._parse_var() or self._parse_type() + 85 self._match(TokenType.COMMA) + 86 expression = self._parse_bitwise() + 87 + 88 name = this.name.upper() + 89 if name.startswith("EPOCH"): + 90 if name.startswith("EPOCH_MILLISECOND"): + 91 scale = 10**3 + 92 elif name.startswith("EPOCH_MICROSECOND"): + 93 scale = 10**6 + 94 elif name.startswith("EPOCH_NANOSECOND"): + 95 scale = 10**9 + 96 else: + 97 scale = None + 98 + 99 ts = self.expression(exp.Cast, this=expression, to=exp.DataType.build("TIMESTAMP")) +100 to_unix = self.expression(exp.TimeToUnix, this=ts) +101 +102 if scale: +103 to_unix = exp.Mul(this=to_unix, expression=exp.Literal.number(scale)) +104 +105 return to_unix +106 +107 return self.expression(exp.Extract, this=this, expression=expression) 108 -109# https://docs.snowflake.com/en/sql-reference/functions/div0 -110def _div0_to_if(args): -111 cond = exp.EQ(this=seq_get(args, 1), expression=exp.Literal.number(0)) -112 true = exp.Literal.number(0) -113 false = exp.Div(this=seq_get(args, 0), expression=seq_get(args, 1)) -114 return exp.If(this=cond, true=true, false=false) -115 +109 +110# https://docs.snowflake.com/en/sql-reference/functions/div0 +111def _div0_to_if(args): +112 cond = exp.EQ(this=seq_get(args, 1), expression=exp.Literal.number(0)) +113 true = exp.Literal.number(0) +114 false = exp.FloatDiv(this=seq_get(args, 0), expression=seq_get(args, 1)) +115 return exp.If(this=cond, true=true, false=false) 116 -117# https://docs.snowflake.com/en/sql-reference/functions/zeroifnull -118def _zeroifnull_to_if(args): -119 cond = exp.EQ(this=seq_get(args, 0), expression=exp.Null()) -120 return exp.If(this=cond, true=exp.Literal.number(0), false=seq_get(args, 0)) -121 +117 +118# https://docs.snowflake.com/en/sql-reference/functions/zeroifnull +119def _zeroifnull_to_if(args): +120 cond = exp.Is(this=seq_get(args, 0), expression=exp.Null()) +121 return exp.If(this=cond, true=exp.Literal.number(0), false=seq_get(args, 0)) 122 -123def _datatype_sql(self, expression): -124 if expression.this == exp.DataType.Type.ARRAY: -125 return "ARRAY" -126 elif expression.this == exp.DataType.Type.MAP: -127 return "OBJECT" -128 return self.datatype_sql(expression) +123 +124# https://docs.snowflake.com/en/sql-reference/functions/zeroifnull +125def _nullifzero_to_if(args): +126 cond = exp.EQ(this=seq_get(args, 0), expression=exp.Literal.number(0)) +127 return exp.If(this=cond, true=exp.Null(), false=seq_get(args, 0)) +128 129 -130 -131class Snowflake(Dialect): -132 null_ordering = "nulls_are_large" -133 time_format = "'yyyy-mm-dd hh24:mi:ss'" -134 -135 time_mapping = { -136 "YYYY": "%Y", -137 "yyyy": "%Y", -138 "YY": "%y", -139 "yy": "%y", -140 "MMMM": "%B", -141 "mmmm": "%B", -142 "MON": "%b", -143 "mon": "%b", -144 "MM": "%m", -145 "mm": "%m", -146 "DD": "%d", -147 "dd": "%d", -148 "d": "%-d", -149 "DY": "%w", -150 "dy": "%w", -151 "HH24": "%H", -152 "hh24": "%H", -153 "HH12": "%I", -154 "hh12": "%I", -155 "MI": "%M", -156 "mi": "%M", -157 "SS": "%S", -158 "ss": "%S", -159 "FF": "%f", -160 "ff": "%f", -161 "FF6": "%f", -162 "ff6": "%f", -163 } -164 -165 class Parser(parser.Parser): -166 FUNCTIONS = { -167 **parser.Parser.FUNCTIONS, -168 "ARRAYAGG": exp.ArrayAgg.from_arg_list, -169 "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list, -170 "DATE_TRUNC": lambda args: exp.DateTrunc( -171 unit=exp.Literal.string(seq_get(args, 0).name), # type: ignore -172 this=seq_get(args, 1), -173 ), -174 "DIV0": _div0_to_if, -175 "IFF": exp.If.from_arg_list, -176 "TO_ARRAY": exp.Array.from_arg_list, -177 "TO_TIMESTAMP": _snowflake_to_timestamp, -178 "ARRAY_CONSTRUCT": exp.Array.from_arg_list, -179 "RLIKE": exp.RegexpLike.from_arg_list, -180 "DECODE": exp.Matches.from_arg_list, -181 "OBJECT_CONSTRUCT": parser.parse_var_map, -182 "ZEROIFNULL": _zeroifnull_to_if, -183 } -184 -185 FUNCTION_PARSERS = { -186 **parser.Parser.FUNCTION_PARSERS, -187 "DATE_PART": _parse_date_part, -188 } -189 FUNCTION_PARSERS.pop("TRIM") -190 -191 FUNC_TOKENS = { -192 *parser.Parser.FUNC_TOKENS, -193 TokenType.RLIKE, -194 TokenType.TABLE, -195 } -196 -197 COLUMN_OPERATORS = { -198 **parser.Parser.COLUMN_OPERATORS, # type: ignore -199 TokenType.COLON: lambda self, this, path: self.expression( -200 exp.Bracket, -201 this=this, -202 expressions=[path], -203 ), -204 } -205 -206 RANGE_PARSERS = { -207 **parser.Parser.RANGE_PARSERS, # type: ignore -208 TokenType.LIKE_ANY: lambda self, this: self._parse_escape( -209 self.expression(exp.LikeAny, this=this, expression=self._parse_bitwise()) -210 ), -211 TokenType.ILIKE_ANY: lambda self, this: self._parse_escape( -212 self.expression(exp.ILikeAny, this=this, expression=self._parse_bitwise()) -213 ), -214 } -215 -216 ALTER_PARSERS = { -217 **parser.Parser.ALTER_PARSERS, # type: ignore -218 "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True), -219 "SET": lambda self: self._parse_alter_table_set_tag(), -220 } -221 -222 def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression: -223 self._match_text_seq("TAG") -224 parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction) -225 return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset) -226 -227 class Tokenizer(tokens.Tokenizer): -228 QUOTES = ["'", "$$"] -229 STRING_ESCAPES = ["\\", "'"] -230 -231 KEYWORDS = { -232 **tokens.Tokenizer.KEYWORDS, -233 "EXCLUDE": TokenType.EXCEPT, -234 "ILIKE ANY": TokenType.ILIKE_ANY, -235 "LIKE ANY": TokenType.LIKE_ANY, -236 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, -237 "PUT": TokenType.COMMAND, -238 "RENAME": TokenType.REPLACE, -239 "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ, -240 "TIMESTAMP_NTZ": TokenType.TIMESTAMP, -241 "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ, -242 "TIMESTAMPNTZ": TokenType.TIMESTAMP, -243 "MINUS": TokenType.EXCEPT, -244 "SAMPLE": TokenType.TABLE_SAMPLE, -245 } -246 -247 SINGLE_TOKENS = { -248 **tokens.Tokenizer.SINGLE_TOKENS, -249 "$": TokenType.PARAMETER, -250 } -251 -252 class Generator(generator.Generator): -253 PARAMETER_TOKEN = "$" -254 -255 TRANSFORMS = { -256 **generator.Generator.TRANSFORMS, # type: ignore -257 exp.Array: inline_array_sql, -258 exp.ArrayConcat: rename_func("ARRAY_CAT"), -259 exp.ArrayJoin: rename_func("ARRAY_TO_STRING"), -260 exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this), -261 exp.DateStrToDate: datestrtodate_sql, -262 exp.DataType: _datatype_sql, -263 exp.If: rename_func("IFF"), -264 exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), -265 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), -266 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -267 exp.Matches: rename_func("DECODE"), -268 exp.StrPosition: lambda self, e: self.func( -269 "POSITION", e.args.get("substr"), e.this, e.args.get("position") -270 ), -271 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -272 exp.TimeStrToTime: timestrtotime_sql, -273 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", -274 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), -275 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), -276 exp.UnixToTime: _unix_to_time_sql, -277 exp.DayOfWeek: rename_func("DAYOFWEEK"), -278 } -279 -280 TYPE_MAPPING = { -281 **generator.Generator.TYPE_MAPPING, # type: ignore -282 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", -283 } -284 -285 STAR_MAPPING = { -286 "except": "EXCLUDE", -287 "replace": "RENAME", -288 } -289 -290 PROPERTIES_LOCATION = { -291 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -292 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, -293 } -294 -295 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: -296 return self.binary(expression, "ILIKE ANY") +130def _datatype_sql(self, expression): +131 if expression.this == exp.DataType.Type.ARRAY: +132 return "ARRAY" +133 elif expression.this == exp.DataType.Type.MAP: +134 return "OBJECT" +135 return self.datatype_sql(expression) +136 +137 +138class Snowflake(Dialect): +139 null_ordering = "nulls_are_large" +140 time_format = "'yyyy-mm-dd hh24:mi:ss'" +141 +142 time_mapping = { +143 "YYYY": "%Y", +144 "yyyy": "%Y", +145 "YY": "%y", +146 "yy": "%y", +147 "MMMM": "%B", +148 "mmmm": "%B", +149 "MON": "%b", +150 "mon": "%b", +151 "MM": "%m", +152 "mm": "%m", +153 "DD": "%d", +154 "dd": "%d", +155 "d": "%-d", +156 "DY": "%w", +157 "dy": "%w", +158 "HH24": "%H", +159 "hh24": "%H", +160 "HH12": "%I", +161 "hh12": "%I", +162 "MI": "%M", +163 "mi": "%M", +164 "SS": "%S", +165 "ss": "%S", +166 "FF": "%f", +167 "ff": "%f", +168 "FF6": "%f", +169 "ff6": "%f", +170 } +171 +172 class Parser(parser.Parser): +173 FUNCTIONS = { +174 **parser.Parser.FUNCTIONS, +175 "ARRAYAGG": exp.ArrayAgg.from_arg_list, +176 "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list, +177 "DATEADD": lambda args: exp.DateAdd( +178 this=seq_get(args, 2), +179 expression=seq_get(args, 1), +180 unit=seq_get(args, 0), +181 ), +182 "DATE_TRUNC": lambda args: exp.DateTrunc( +183 unit=exp.Literal.string(seq_get(args, 0).name), # type: ignore +184 this=seq_get(args, 1), +185 ), +186 "DIV0": _div0_to_if, +187 "IFF": exp.If.from_arg_list, +188 "TO_ARRAY": exp.Array.from_arg_list, +189 "TO_TIMESTAMP": _snowflake_to_timestamp, +190 "ARRAY_CONSTRUCT": exp.Array.from_arg_list, +191 "RLIKE": exp.RegexpLike.from_arg_list, +192 "DECODE": exp.Matches.from_arg_list, +193 "OBJECT_CONSTRUCT": parser.parse_var_map, +194 "ZEROIFNULL": _zeroifnull_to_if, +195 "NULLIFZERO": _nullifzero_to_if, +196 } +197 +198 FUNCTION_PARSERS = { +199 **parser.Parser.FUNCTION_PARSERS, +200 "DATE_PART": _parse_date_part, +201 } +202 FUNCTION_PARSERS.pop("TRIM") +203 +204 FUNC_TOKENS = { +205 *parser.Parser.FUNC_TOKENS, +206 TokenType.RLIKE, +207 TokenType.TABLE, +208 } +209 +210 COLUMN_OPERATORS = { +211 **parser.Parser.COLUMN_OPERATORS, # type: ignore +212 TokenType.COLON: lambda self, this, path: self.expression( +213 exp.Bracket, +214 this=this, +215 expressions=[path], +216 ), +217 } +218 +219 RANGE_PARSERS = { +220 **parser.Parser.RANGE_PARSERS, # type: ignore +221 TokenType.LIKE_ANY: lambda self, this: self._parse_escape( +222 self.expression(exp.LikeAny, this=this, expression=self._parse_bitwise()) +223 ), +224 TokenType.ILIKE_ANY: lambda self, this: self._parse_escape( +225 self.expression(exp.ILikeAny, this=this, expression=self._parse_bitwise()) +226 ), +227 } +228 +229 ALTER_PARSERS = { +230 **parser.Parser.ALTER_PARSERS, # type: ignore +231 "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True), +232 "SET": lambda self: self._parse_alter_table_set_tag(), +233 } +234 +235 INTEGER_DIVISION = False +236 +237 def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression: +238 self._match_text_seq("TAG") +239 parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction) +240 return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset) +241 +242 class Tokenizer(tokens.Tokenizer): +243 QUOTES = ["'", "$$"] +244 STRING_ESCAPES = ["\\", "'"] +245 +246 KEYWORDS = { +247 **tokens.Tokenizer.KEYWORDS, +248 "EXCLUDE": TokenType.EXCEPT, +249 "ILIKE ANY": TokenType.ILIKE_ANY, +250 "LIKE ANY": TokenType.LIKE_ANY, +251 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, +252 "PUT": TokenType.COMMAND, +253 "RENAME": TokenType.REPLACE, +254 "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ, +255 "TIMESTAMP_NTZ": TokenType.TIMESTAMP, +256 "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ, +257 "TIMESTAMPNTZ": TokenType.TIMESTAMP, +258 "MINUS": TokenType.EXCEPT, +259 "SAMPLE": TokenType.TABLE_SAMPLE, +260 } +261 +262 SINGLE_TOKENS = { +263 **tokens.Tokenizer.SINGLE_TOKENS, +264 "$": TokenType.PARAMETER, +265 } +266 +267 class Generator(generator.Generator): +268 PARAMETER_TOKEN = "$" +269 INTEGER_DIVISION = False +270 MATCHED_BY_SOURCE = False +271 +272 TRANSFORMS = { +273 **generator.Generator.TRANSFORMS, # type: ignore +274 exp.Array: inline_array_sql, +275 exp.ArrayConcat: rename_func("ARRAY_CAT"), +276 exp.ArrayJoin: rename_func("ARRAY_TO_STRING"), +277 exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this), +278 exp.DateStrToDate: datestrtodate_sql, +279 exp.DataType: _datatype_sql, +280 exp.If: rename_func("IFF"), +281 exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +282 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +283 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", +284 exp.Matches: rename_func("DECODE"), +285 exp.StrPosition: lambda self, e: self.func( +286 "POSITION", e.args.get("substr"), e.this, e.args.get("position") +287 ), +288 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +289 exp.TimeStrToTime: timestrtotime_sql, +290 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", +291 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), +292 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), +293 exp.UnixToTime: _unix_to_time_sql, +294 exp.DayOfWeek: rename_func("DAYOFWEEK"), +295 exp.Min: min_or_least, +296 } 297 -298 def likeany_sql(self, expression: exp.LikeAny) -> str: -299 return self.binary(expression, "LIKE ANY") -300 -301 def except_op(self, expression): -302 if not expression.args.get("distinct", False): -303 self.unsupported("EXCEPT with All is not supported in Snowflake") -304 return super().except_op(expression) -305 -306 def intersect_op(self, expression): -307 if not expression.args.get("distinct", False): -308 self.unsupported("INTERSECT with All is not supported in Snowflake") -309 return super().intersect_op(expression) -310 -311 def values_sql(self, expression: exp.Values) -> str: -312 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. -313 -314 We also want to make sure that after we find matches where we need to unquote a column that we prevent users -315 from adding quotes to the column by using the `identify` argument when generating the SQL. -316 """ -317 alias = expression.args.get("alias") -318 if alias and alias.args.get("columns"): -319 expression = expression.transform( -320 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -321 if isinstance(node, exp.Identifier) -322 and isinstance(node.parent, exp.TableAlias) -323 and node.arg_key == "columns" -324 else node, -325 ) -326 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) -327 return super().values_sql(expression) +298 TYPE_MAPPING = { +299 **generator.Generator.TYPE_MAPPING, # type: ignore +300 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", +301 } +302 +303 STAR_MAPPING = { +304 "except": "EXCLUDE", +305 "replace": "RENAME", +306 } +307 +308 PROPERTIES_LOCATION = { +309 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +310 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, +311 } +312 +313 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: +314 return self.binary(expression, "ILIKE ANY") +315 +316 def likeany_sql(self, expression: exp.LikeAny) -> str: +317 return self.binary(expression, "LIKE ANY") +318 +319 def except_op(self, expression): +320 if not expression.args.get("distinct", False): +321 self.unsupported("EXCEPT with All is not supported in Snowflake") +322 return super().except_op(expression) +323 +324 def intersect_op(self, expression): +325 if not expression.args.get("distinct", False): +326 self.unsupported("INTERSECT with All is not supported in Snowflake") +327 return super().intersect_op(expression) 328 -329 def settag_sql(self, expression: exp.SetTag) -> str: -330 action = "UNSET" if expression.args.get("unset") else "SET" -331 return f"{action} TAG {self.expressions(expression)}" -332 -333 def select_sql(self, expression: exp.Select) -> str: -334 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also -335 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need -336 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when -337 generating the SQL. -338 -339 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the -340 expression. This might not be true in a case where the same column name can be sourced from another table that can -341 properly quote but should be true in most cases. -342 """ -343 values_expressions = expression.find_all(exp.Values) -344 values_identifiers = set( -345 flatten( -346 v.args.get("alias", exp.Alias()).args.get("columns", []) -347 for v in values_expressions -348 ) -349 ) -350 if values_identifiers: -351 expression = expression.transform( -352 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -353 if isinstance(node, exp.Identifier) and node in values_identifiers -354 else node, -355 ) -356 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) -357 return super().select_sql(expression) -358 -359 def describe_sql(self, expression: exp.Describe) -> str: -360 # Default to table if kind is unknown -361 kind_value = expression.args.get("kind") or "TABLE" -362 kind = f" {kind_value}" if kind_value else "" -363 this = f" {self.sql(expression, 'this')}" -364 return f"DESCRIBE{kind}{this}" -365 -366 def generatedasidentitycolumnconstraint_sql( -367 self, expression: exp.GeneratedAsIdentityColumnConstraint -368 ) -> str: -369 start = expression.args.get("start") -370 start = f" START {start}" if start else "" -371 increment = expression.args.get("increment") -372 increment = f" INCREMENT {increment}" if increment else "" -373 return f"AUTOINCREMENT{start}{increment}" +329 def values_sql(self, expression: exp.Values) -> str: +330 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. +331 +332 We also want to make sure that after we find matches where we need to unquote a column that we prevent users +333 from adding quotes to the column by using the `identify` argument when generating the SQL. +334 """ +335 alias = expression.args.get("alias") +336 if alias and alias.args.get("columns"): +337 expression = expression.transform( +338 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +339 if isinstance(node, exp.Identifier) +340 and isinstance(node.parent, exp.TableAlias) +341 and node.arg_key == "columns" +342 else node, +343 ) +344 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) +345 return super().values_sql(expression) +346 +347 def settag_sql(self, expression: exp.SetTag) -> str: +348 action = "UNSET" if expression.args.get("unset") else "SET" +349 return f"{action} TAG {self.expressions(expression)}" +350 +351 def select_sql(self, expression: exp.Select) -> str: +352 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also +353 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need +354 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when +355 generating the SQL. +356 +357 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the +358 expression. This might not be true in a case where the same column name can be sourced from another table that can +359 properly quote but should be true in most cases. +360 """ +361 values_identifiers = set( +362 flatten( +363 (v.args.get("alias") or exp.Alias()).args.get("columns", []) +364 for v in expression.find_all(exp.Values) +365 ) +366 ) +367 if values_identifiers: +368 expression = expression.transform( +369 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +370 if isinstance(node, exp.Identifier) and node in values_identifiers +371 else node, +372 ) +373 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) +374 return super().select_sql(expression) +375 +376 def describe_sql(self, expression: exp.Describe) -> str: +377 # Default to table if kind is unknown +378 kind_value = expression.args.get("kind") or "TABLE" +379 kind = f" {kind_value}" if kind_value else "" +380 this = f" {self.sql(expression, 'this')}" +381 return f"DESCRIBE{kind}{this}" +382 +383 def generatedasidentitycolumnconstraint_sql( +384 self, expression: exp.GeneratedAsIdentityColumnConstraint +385 ) -> str: +386 start = expression.args.get("start") +387 start = f" START {start}" if start else "" +388 increment = expression.args.get("increment") +389 increment = f" INCREMENT {increment}" if increment else "" +390 return f"AUTOINCREMENT{start}{increment}"
    @@ -492,249 +509,259 @@ -
    132class Snowflake(Dialect):
    -133    null_ordering = "nulls_are_large"
    -134    time_format = "'yyyy-mm-dd hh24:mi:ss'"
    -135
    -136    time_mapping = {
    -137        "YYYY": "%Y",
    -138        "yyyy": "%Y",
    -139        "YY": "%y",
    -140        "yy": "%y",
    -141        "MMMM": "%B",
    -142        "mmmm": "%B",
    -143        "MON": "%b",
    -144        "mon": "%b",
    -145        "MM": "%m",
    -146        "mm": "%m",
    -147        "DD": "%d",
    -148        "dd": "%d",
    -149        "d": "%-d",
    -150        "DY": "%w",
    -151        "dy": "%w",
    -152        "HH24": "%H",
    -153        "hh24": "%H",
    -154        "HH12": "%I",
    -155        "hh12": "%I",
    -156        "MI": "%M",
    -157        "mi": "%M",
    -158        "SS": "%S",
    -159        "ss": "%S",
    -160        "FF": "%f",
    -161        "ff": "%f",
    -162        "FF6": "%f",
    -163        "ff6": "%f",
    -164    }
    -165
    -166    class Parser(parser.Parser):
    -167        FUNCTIONS = {
    -168            **parser.Parser.FUNCTIONS,
    -169            "ARRAYAGG": exp.ArrayAgg.from_arg_list,
    -170            "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list,
    -171            "DATE_TRUNC": lambda args: exp.DateTrunc(
    -172                unit=exp.Literal.string(seq_get(args, 0).name),  # type: ignore
    -173                this=seq_get(args, 1),
    -174            ),
    -175            "DIV0": _div0_to_if,
    -176            "IFF": exp.If.from_arg_list,
    -177            "TO_ARRAY": exp.Array.from_arg_list,
    -178            "TO_TIMESTAMP": _snowflake_to_timestamp,
    -179            "ARRAY_CONSTRUCT": exp.Array.from_arg_list,
    -180            "RLIKE": exp.RegexpLike.from_arg_list,
    -181            "DECODE": exp.Matches.from_arg_list,
    -182            "OBJECT_CONSTRUCT": parser.parse_var_map,
    -183            "ZEROIFNULL": _zeroifnull_to_if,
    -184        }
    -185
    -186        FUNCTION_PARSERS = {
    -187            **parser.Parser.FUNCTION_PARSERS,
    -188            "DATE_PART": _parse_date_part,
    -189        }
    -190        FUNCTION_PARSERS.pop("TRIM")
    -191
    -192        FUNC_TOKENS = {
    -193            *parser.Parser.FUNC_TOKENS,
    -194            TokenType.RLIKE,
    -195            TokenType.TABLE,
    -196        }
    -197
    -198        COLUMN_OPERATORS = {
    -199            **parser.Parser.COLUMN_OPERATORS,  # type: ignore
    -200            TokenType.COLON: lambda self, this, path: self.expression(
    -201                exp.Bracket,
    -202                this=this,
    -203                expressions=[path],
    -204            ),
    -205        }
    -206
    -207        RANGE_PARSERS = {
    -208            **parser.Parser.RANGE_PARSERS,  # type: ignore
    -209            TokenType.LIKE_ANY: lambda self, this: self._parse_escape(
    -210                self.expression(exp.LikeAny, this=this, expression=self._parse_bitwise())
    -211            ),
    -212            TokenType.ILIKE_ANY: lambda self, this: self._parse_escape(
    -213                self.expression(exp.ILikeAny, this=this, expression=self._parse_bitwise())
    -214            ),
    -215        }
    -216
    -217        ALTER_PARSERS = {
    -218            **parser.Parser.ALTER_PARSERS,  # type: ignore
    -219            "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True),
    -220            "SET": lambda self: self._parse_alter_table_set_tag(),
    -221        }
    -222
    -223        def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression:
    -224            self._match_text_seq("TAG")
    -225            parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction)
    -226            return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset)
    -227
    -228    class Tokenizer(tokens.Tokenizer):
    -229        QUOTES = ["'", "$$"]
    -230        STRING_ESCAPES = ["\\", "'"]
    -231
    -232        KEYWORDS = {
    -233            **tokens.Tokenizer.KEYWORDS,
    -234            "EXCLUDE": TokenType.EXCEPT,
    -235            "ILIKE ANY": TokenType.ILIKE_ANY,
    -236            "LIKE ANY": TokenType.LIKE_ANY,
    -237            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    -238            "PUT": TokenType.COMMAND,
    -239            "RENAME": TokenType.REPLACE,
    -240            "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ,
    -241            "TIMESTAMP_NTZ": TokenType.TIMESTAMP,
    -242            "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ,
    -243            "TIMESTAMPNTZ": TokenType.TIMESTAMP,
    -244            "MINUS": TokenType.EXCEPT,
    -245            "SAMPLE": TokenType.TABLE_SAMPLE,
    -246        }
    -247
    -248        SINGLE_TOKENS = {
    -249            **tokens.Tokenizer.SINGLE_TOKENS,
    -250            "$": TokenType.PARAMETER,
    -251        }
    -252
    -253    class Generator(generator.Generator):
    -254        PARAMETER_TOKEN = "$"
    -255
    -256        TRANSFORMS = {
    -257            **generator.Generator.TRANSFORMS,  # type: ignore
    -258            exp.Array: inline_array_sql,
    -259            exp.ArrayConcat: rename_func("ARRAY_CAT"),
    -260            exp.ArrayJoin: rename_func("ARRAY_TO_STRING"),
    -261            exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this),
    -262            exp.DateStrToDate: datestrtodate_sql,
    -263            exp.DataType: _datatype_sql,
    -264            exp.If: rename_func("IFF"),
    -265            exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    -266            exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    -267            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    -268            exp.Matches: rename_func("DECODE"),
    -269            exp.StrPosition: lambda self, e: self.func(
    -270                "POSITION", e.args.get("substr"), e.this, e.args.get("position")
    -271            ),
    -272            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -273            exp.TimeStrToTime: timestrtotime_sql,
    -274            exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})",
    -275            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
    -276            exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"),
    -277            exp.UnixToTime: _unix_to_time_sql,
    -278            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -279        }
    -280
    -281        TYPE_MAPPING = {
    -282            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -283            exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ",
    -284        }
    -285
    -286        STAR_MAPPING = {
    -287            "except": "EXCLUDE",
    -288            "replace": "RENAME",
    -289        }
    -290
    -291        PROPERTIES_LOCATION = {
    -292            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -293            exp.SetProperty: exp.Properties.Location.UNSUPPORTED,
    -294        }
    -295
    -296        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    -297            return self.binary(expression, "ILIKE ANY")
    +            
    139class Snowflake(Dialect):
    +140    null_ordering = "nulls_are_large"
    +141    time_format = "'yyyy-mm-dd hh24:mi:ss'"
    +142
    +143    time_mapping = {
    +144        "YYYY": "%Y",
    +145        "yyyy": "%Y",
    +146        "YY": "%y",
    +147        "yy": "%y",
    +148        "MMMM": "%B",
    +149        "mmmm": "%B",
    +150        "MON": "%b",
    +151        "mon": "%b",
    +152        "MM": "%m",
    +153        "mm": "%m",
    +154        "DD": "%d",
    +155        "dd": "%d",
    +156        "d": "%-d",
    +157        "DY": "%w",
    +158        "dy": "%w",
    +159        "HH24": "%H",
    +160        "hh24": "%H",
    +161        "HH12": "%I",
    +162        "hh12": "%I",
    +163        "MI": "%M",
    +164        "mi": "%M",
    +165        "SS": "%S",
    +166        "ss": "%S",
    +167        "FF": "%f",
    +168        "ff": "%f",
    +169        "FF6": "%f",
    +170        "ff6": "%f",
    +171    }
    +172
    +173    class Parser(parser.Parser):
    +174        FUNCTIONS = {
    +175            **parser.Parser.FUNCTIONS,
    +176            "ARRAYAGG": exp.ArrayAgg.from_arg_list,
    +177            "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list,
    +178            "DATEADD": lambda args: exp.DateAdd(
    +179                this=seq_get(args, 2),
    +180                expression=seq_get(args, 1),
    +181                unit=seq_get(args, 0),
    +182            ),
    +183            "DATE_TRUNC": lambda args: exp.DateTrunc(
    +184                unit=exp.Literal.string(seq_get(args, 0).name),  # type: ignore
    +185                this=seq_get(args, 1),
    +186            ),
    +187            "DIV0": _div0_to_if,
    +188            "IFF": exp.If.from_arg_list,
    +189            "TO_ARRAY": exp.Array.from_arg_list,
    +190            "TO_TIMESTAMP": _snowflake_to_timestamp,
    +191            "ARRAY_CONSTRUCT": exp.Array.from_arg_list,
    +192            "RLIKE": exp.RegexpLike.from_arg_list,
    +193            "DECODE": exp.Matches.from_arg_list,
    +194            "OBJECT_CONSTRUCT": parser.parse_var_map,
    +195            "ZEROIFNULL": _zeroifnull_to_if,
    +196            "NULLIFZERO": _nullifzero_to_if,
    +197        }
    +198
    +199        FUNCTION_PARSERS = {
    +200            **parser.Parser.FUNCTION_PARSERS,
    +201            "DATE_PART": _parse_date_part,
    +202        }
    +203        FUNCTION_PARSERS.pop("TRIM")
    +204
    +205        FUNC_TOKENS = {
    +206            *parser.Parser.FUNC_TOKENS,
    +207            TokenType.RLIKE,
    +208            TokenType.TABLE,
    +209        }
    +210
    +211        COLUMN_OPERATORS = {
    +212            **parser.Parser.COLUMN_OPERATORS,  # type: ignore
    +213            TokenType.COLON: lambda self, this, path: self.expression(
    +214                exp.Bracket,
    +215                this=this,
    +216                expressions=[path],
    +217            ),
    +218        }
    +219
    +220        RANGE_PARSERS = {
    +221            **parser.Parser.RANGE_PARSERS,  # type: ignore
    +222            TokenType.LIKE_ANY: lambda self, this: self._parse_escape(
    +223                self.expression(exp.LikeAny, this=this, expression=self._parse_bitwise())
    +224            ),
    +225            TokenType.ILIKE_ANY: lambda self, this: self._parse_escape(
    +226                self.expression(exp.ILikeAny, this=this, expression=self._parse_bitwise())
    +227            ),
    +228        }
    +229
    +230        ALTER_PARSERS = {
    +231            **parser.Parser.ALTER_PARSERS,  # type: ignore
    +232            "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True),
    +233            "SET": lambda self: self._parse_alter_table_set_tag(),
    +234        }
    +235
    +236        INTEGER_DIVISION = False
    +237
    +238        def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression:
    +239            self._match_text_seq("TAG")
    +240            parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction)
    +241            return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset)
    +242
    +243    class Tokenizer(tokens.Tokenizer):
    +244        QUOTES = ["'", "$$"]
    +245        STRING_ESCAPES = ["\\", "'"]
    +246
    +247        KEYWORDS = {
    +248            **tokens.Tokenizer.KEYWORDS,
    +249            "EXCLUDE": TokenType.EXCEPT,
    +250            "ILIKE ANY": TokenType.ILIKE_ANY,
    +251            "LIKE ANY": TokenType.LIKE_ANY,
    +252            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    +253            "PUT": TokenType.COMMAND,
    +254            "RENAME": TokenType.REPLACE,
    +255            "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ,
    +256            "TIMESTAMP_NTZ": TokenType.TIMESTAMP,
    +257            "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ,
    +258            "TIMESTAMPNTZ": TokenType.TIMESTAMP,
    +259            "MINUS": TokenType.EXCEPT,
    +260            "SAMPLE": TokenType.TABLE_SAMPLE,
    +261        }
    +262
    +263        SINGLE_TOKENS = {
    +264            **tokens.Tokenizer.SINGLE_TOKENS,
    +265            "$": TokenType.PARAMETER,
    +266        }
    +267
    +268    class Generator(generator.Generator):
    +269        PARAMETER_TOKEN = "$"
    +270        INTEGER_DIVISION = False
    +271        MATCHED_BY_SOURCE = False
    +272
    +273        TRANSFORMS = {
    +274            **generator.Generator.TRANSFORMS,  # type: ignore
    +275            exp.Array: inline_array_sql,
    +276            exp.ArrayConcat: rename_func("ARRAY_CAT"),
    +277            exp.ArrayJoin: rename_func("ARRAY_TO_STRING"),
    +278            exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this),
    +279            exp.DateStrToDate: datestrtodate_sql,
    +280            exp.DataType: _datatype_sql,
    +281            exp.If: rename_func("IFF"),
    +282            exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    +283            exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    +284            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    +285            exp.Matches: rename_func("DECODE"),
    +286            exp.StrPosition: lambda self, e: self.func(
    +287                "POSITION", e.args.get("substr"), e.this, e.args.get("position")
    +288            ),
    +289            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    +290            exp.TimeStrToTime: timestrtotime_sql,
    +291            exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})",
    +292            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
    +293            exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"),
    +294            exp.UnixToTime: _unix_to_time_sql,
    +295            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    +296            exp.Min: min_or_least,
    +297        }
     298
    -299        def likeany_sql(self, expression: exp.LikeAny) -> str:
    -300            return self.binary(expression, "LIKE ANY")
    -301
    -302        def except_op(self, expression):
    -303            if not expression.args.get("distinct", False):
    -304                self.unsupported("EXCEPT with All is not supported in Snowflake")
    -305            return super().except_op(expression)
    -306
    -307        def intersect_op(self, expression):
    -308            if not expression.args.get("distinct", False):
    -309                self.unsupported("INTERSECT with All is not supported in Snowflake")
    -310            return super().intersect_op(expression)
    -311
    -312        def values_sql(self, expression: exp.Values) -> str:
    -313            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    -314
    -315            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    -316            from adding quotes to the column by using the `identify` argument when generating the SQL.
    -317            """
    -318            alias = expression.args.get("alias")
    -319            if alias and alias.args.get("columns"):
    -320                expression = expression.transform(
    -321                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -322                    if isinstance(node, exp.Identifier)
    -323                    and isinstance(node.parent, exp.TableAlias)
    -324                    and node.arg_key == "columns"
    -325                    else node,
    -326                )
    -327                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    -328            return super().values_sql(expression)
    +299        TYPE_MAPPING = {
    +300            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +301            exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ",
    +302        }
    +303
    +304        STAR_MAPPING = {
    +305            "except": "EXCLUDE",
    +306            "replace": "RENAME",
    +307        }
    +308
    +309        PROPERTIES_LOCATION = {
    +310            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +311            exp.SetProperty: exp.Properties.Location.UNSUPPORTED,
    +312        }
    +313
    +314        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    +315            return self.binary(expression, "ILIKE ANY")
    +316
    +317        def likeany_sql(self, expression: exp.LikeAny) -> str:
    +318            return self.binary(expression, "LIKE ANY")
    +319
    +320        def except_op(self, expression):
    +321            if not expression.args.get("distinct", False):
    +322                self.unsupported("EXCEPT with All is not supported in Snowflake")
    +323            return super().except_op(expression)
    +324
    +325        def intersect_op(self, expression):
    +326            if not expression.args.get("distinct", False):
    +327                self.unsupported("INTERSECT with All is not supported in Snowflake")
    +328            return super().intersect_op(expression)
     329
    -330        def settag_sql(self, expression: exp.SetTag) -> str:
    -331            action = "UNSET" if expression.args.get("unset") else "SET"
    -332            return f"{action} TAG {self.expressions(expression)}"
    -333
    -334        def select_sql(self, expression: exp.Select) -> str:
    -335            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    -336            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    -337            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    -338            generating the SQL.
    -339
    -340            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    -341            expression. This might not be true in a case where the same column name can be sourced from another table that can
    -342            properly quote but should be true in most cases.
    -343            """
    -344            values_expressions = expression.find_all(exp.Values)
    -345            values_identifiers = set(
    -346                flatten(
    -347                    v.args.get("alias", exp.Alias()).args.get("columns", [])
    -348                    for v in values_expressions
    -349                )
    -350            )
    -351            if values_identifiers:
    -352                expression = expression.transform(
    -353                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -354                    if isinstance(node, exp.Identifier) and node in values_identifiers
    -355                    else node,
    -356                )
    -357                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    -358            return super().select_sql(expression)
    -359
    -360        def describe_sql(self, expression: exp.Describe) -> str:
    -361            # Default to table if kind is unknown
    -362            kind_value = expression.args.get("kind") or "TABLE"
    -363            kind = f" {kind_value}" if kind_value else ""
    -364            this = f" {self.sql(expression, 'this')}"
    -365            return f"DESCRIBE{kind}{this}"
    -366
    -367        def generatedasidentitycolumnconstraint_sql(
    -368            self, expression: exp.GeneratedAsIdentityColumnConstraint
    -369        ) -> str:
    -370            start = expression.args.get("start")
    -371            start = f" START {start}" if start else ""
    -372            increment = expression.args.get("increment")
    -373            increment = f" INCREMENT {increment}" if increment else ""
    -374            return f"AUTOINCREMENT{start}{increment}"
    +330        def values_sql(self, expression: exp.Values) -> str:
    +331            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    +332
    +333            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    +334            from adding quotes to the column by using the `identify` argument when generating the SQL.
    +335            """
    +336            alias = expression.args.get("alias")
    +337            if alias and alias.args.get("columns"):
    +338                expression = expression.transform(
    +339                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +340                    if isinstance(node, exp.Identifier)
    +341                    and isinstance(node.parent, exp.TableAlias)
    +342                    and node.arg_key == "columns"
    +343                    else node,
    +344                )
    +345                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    +346            return super().values_sql(expression)
    +347
    +348        def settag_sql(self, expression: exp.SetTag) -> str:
    +349            action = "UNSET" if expression.args.get("unset") else "SET"
    +350            return f"{action} TAG {self.expressions(expression)}"
    +351
    +352        def select_sql(self, expression: exp.Select) -> str:
    +353            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    +354            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    +355            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    +356            generating the SQL.
    +357
    +358            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    +359            expression. This might not be true in a case where the same column name can be sourced from another table that can
    +360            properly quote but should be true in most cases.
    +361            """
    +362            values_identifiers = set(
    +363                flatten(
    +364                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
    +365                    for v in expression.find_all(exp.Values)
    +366                )
    +367            )
    +368            if values_identifiers:
    +369                expression = expression.transform(
    +370                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +371                    if isinstance(node, exp.Identifier) and node in values_identifiers
    +372                    else node,
    +373                )
    +374                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    +375            return super().select_sql(expression)
    +376
    +377        def describe_sql(self, expression: exp.Describe) -> str:
    +378            # Default to table if kind is unknown
    +379            kind_value = expression.args.get("kind") or "TABLE"
    +380            kind = f" {kind_value}" if kind_value else ""
    +381            this = f" {self.sql(expression, 'this')}"
    +382            return f"DESCRIBE{kind}{this}"
    +383
    +384        def generatedasidentitycolumnconstraint_sql(
    +385            self, expression: exp.GeneratedAsIdentityColumnConstraint
    +386        ) -> str:
    +387            start = expression.args.get("start")
    +388            start = f" START {start}" if start else ""
    +389            increment = expression.args.get("increment")
    +390            increment = f" INCREMENT {increment}" if increment else ""
    +391            return f"AUTOINCREMENT{start}{increment}"
     
    @@ -768,67 +795,75 @@
    -
    166    class Parser(parser.Parser):
    -167        FUNCTIONS = {
    -168            **parser.Parser.FUNCTIONS,
    -169            "ARRAYAGG": exp.ArrayAgg.from_arg_list,
    -170            "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list,
    -171            "DATE_TRUNC": lambda args: exp.DateTrunc(
    -172                unit=exp.Literal.string(seq_get(args, 0).name),  # type: ignore
    -173                this=seq_get(args, 1),
    -174            ),
    -175            "DIV0": _div0_to_if,
    -176            "IFF": exp.If.from_arg_list,
    -177            "TO_ARRAY": exp.Array.from_arg_list,
    -178            "TO_TIMESTAMP": _snowflake_to_timestamp,
    -179            "ARRAY_CONSTRUCT": exp.Array.from_arg_list,
    -180            "RLIKE": exp.RegexpLike.from_arg_list,
    -181            "DECODE": exp.Matches.from_arg_list,
    -182            "OBJECT_CONSTRUCT": parser.parse_var_map,
    -183            "ZEROIFNULL": _zeroifnull_to_if,
    -184        }
    -185
    -186        FUNCTION_PARSERS = {
    -187            **parser.Parser.FUNCTION_PARSERS,
    -188            "DATE_PART": _parse_date_part,
    -189        }
    -190        FUNCTION_PARSERS.pop("TRIM")
    -191
    -192        FUNC_TOKENS = {
    -193            *parser.Parser.FUNC_TOKENS,
    -194            TokenType.RLIKE,
    -195            TokenType.TABLE,
    -196        }
    -197
    -198        COLUMN_OPERATORS = {
    -199            **parser.Parser.COLUMN_OPERATORS,  # type: ignore
    -200            TokenType.COLON: lambda self, this, path: self.expression(
    -201                exp.Bracket,
    -202                this=this,
    -203                expressions=[path],
    -204            ),
    -205        }
    -206
    -207        RANGE_PARSERS = {
    -208            **parser.Parser.RANGE_PARSERS,  # type: ignore
    -209            TokenType.LIKE_ANY: lambda self, this: self._parse_escape(
    -210                self.expression(exp.LikeAny, this=this, expression=self._parse_bitwise())
    -211            ),
    -212            TokenType.ILIKE_ANY: lambda self, this: self._parse_escape(
    -213                self.expression(exp.ILikeAny, this=this, expression=self._parse_bitwise())
    -214            ),
    -215        }
    -216
    -217        ALTER_PARSERS = {
    -218            **parser.Parser.ALTER_PARSERS,  # type: ignore
    -219            "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True),
    -220            "SET": lambda self: self._parse_alter_table_set_tag(),
    -221        }
    -222
    -223        def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression:
    -224            self._match_text_seq("TAG")
    -225            parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction)
    -226            return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset)
    +            
    173    class Parser(parser.Parser):
    +174        FUNCTIONS = {
    +175            **parser.Parser.FUNCTIONS,
    +176            "ARRAYAGG": exp.ArrayAgg.from_arg_list,
    +177            "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list,
    +178            "DATEADD": lambda args: exp.DateAdd(
    +179                this=seq_get(args, 2),
    +180                expression=seq_get(args, 1),
    +181                unit=seq_get(args, 0),
    +182            ),
    +183            "DATE_TRUNC": lambda args: exp.DateTrunc(
    +184                unit=exp.Literal.string(seq_get(args, 0).name),  # type: ignore
    +185                this=seq_get(args, 1),
    +186            ),
    +187            "DIV0": _div0_to_if,
    +188            "IFF": exp.If.from_arg_list,
    +189            "TO_ARRAY": exp.Array.from_arg_list,
    +190            "TO_TIMESTAMP": _snowflake_to_timestamp,
    +191            "ARRAY_CONSTRUCT": exp.Array.from_arg_list,
    +192            "RLIKE": exp.RegexpLike.from_arg_list,
    +193            "DECODE": exp.Matches.from_arg_list,
    +194            "OBJECT_CONSTRUCT": parser.parse_var_map,
    +195            "ZEROIFNULL": _zeroifnull_to_if,
    +196            "NULLIFZERO": _nullifzero_to_if,
    +197        }
    +198
    +199        FUNCTION_PARSERS = {
    +200            **parser.Parser.FUNCTION_PARSERS,
    +201            "DATE_PART": _parse_date_part,
    +202        }
    +203        FUNCTION_PARSERS.pop("TRIM")
    +204
    +205        FUNC_TOKENS = {
    +206            *parser.Parser.FUNC_TOKENS,
    +207            TokenType.RLIKE,
    +208            TokenType.TABLE,
    +209        }
    +210
    +211        COLUMN_OPERATORS = {
    +212            **parser.Parser.COLUMN_OPERATORS,  # type: ignore
    +213            TokenType.COLON: lambda self, this, path: self.expression(
    +214                exp.Bracket,
    +215                this=this,
    +216                expressions=[path],
    +217            ),
    +218        }
    +219
    +220        RANGE_PARSERS = {
    +221            **parser.Parser.RANGE_PARSERS,  # type: ignore
    +222            TokenType.LIKE_ANY: lambda self, this: self._parse_escape(
    +223                self.expression(exp.LikeAny, this=this, expression=self._parse_bitwise())
    +224            ),
    +225            TokenType.ILIKE_ANY: lambda self, this: self._parse_escape(
    +226                self.expression(exp.ILikeAny, this=this, expression=self._parse_bitwise())
    +227            ),
    +228        }
    +229
    +230        ALTER_PARSERS = {
    +231            **parser.Parser.ALTER_PARSERS,  # type: ignore
    +232            "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True),
    +233            "SET": lambda self: self._parse_alter_table_set_tag(),
    +234        }
    +235
    +236        INTEGER_DIVISION = False
    +237
    +238        def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression:
    +239            self._match_text_seq("TAG")
    +240            parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction)
    +241            return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset)
     
    @@ -885,30 +920,30 @@ Default: "nulls_are_small"
    -
    228    class Tokenizer(tokens.Tokenizer):
    -229        QUOTES = ["'", "$$"]
    -230        STRING_ESCAPES = ["\\", "'"]
    -231
    -232        KEYWORDS = {
    -233            **tokens.Tokenizer.KEYWORDS,
    -234            "EXCLUDE": TokenType.EXCEPT,
    -235            "ILIKE ANY": TokenType.ILIKE_ANY,
    -236            "LIKE ANY": TokenType.LIKE_ANY,
    -237            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    -238            "PUT": TokenType.COMMAND,
    -239            "RENAME": TokenType.REPLACE,
    -240            "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ,
    -241            "TIMESTAMP_NTZ": TokenType.TIMESTAMP,
    -242            "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ,
    -243            "TIMESTAMPNTZ": TokenType.TIMESTAMP,
    -244            "MINUS": TokenType.EXCEPT,
    -245            "SAMPLE": TokenType.TABLE_SAMPLE,
    -246        }
    -247
    -248        SINGLE_TOKENS = {
    -249            **tokens.Tokenizer.SINGLE_TOKENS,
    -250            "$": TokenType.PARAMETER,
    -251        }
    +            
    243    class Tokenizer(tokens.Tokenizer):
    +244        QUOTES = ["'", "$$"]
    +245        STRING_ESCAPES = ["\\", "'"]
    +246
    +247        KEYWORDS = {
    +248            **tokens.Tokenizer.KEYWORDS,
    +249            "EXCLUDE": TokenType.EXCEPT,
    +250            "ILIKE ANY": TokenType.ILIKE_ANY,
    +251            "LIKE ANY": TokenType.LIKE_ANY,
    +252            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    +253            "PUT": TokenType.COMMAND,
    +254            "RENAME": TokenType.REPLACE,
    +255            "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ,
    +256            "TIMESTAMP_NTZ": TokenType.TIMESTAMP,
    +257            "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ,
    +258            "TIMESTAMPNTZ": TokenType.TIMESTAMP,
    +259            "MINUS": TokenType.EXCEPT,
    +260            "SAMPLE": TokenType.TABLE_SAMPLE,
    +261        }
    +262
    +263        SINGLE_TOKENS = {
    +264            **tokens.Tokenizer.SINGLE_TOKENS,
    +265            "$": TokenType.PARAMETER,
    +266        }
     
    @@ -936,128 +971,130 @@ Default: "nulls_are_small"
    -
    253    class Generator(generator.Generator):
    -254        PARAMETER_TOKEN = "$"
    -255
    -256        TRANSFORMS = {
    -257            **generator.Generator.TRANSFORMS,  # type: ignore
    -258            exp.Array: inline_array_sql,
    -259            exp.ArrayConcat: rename_func("ARRAY_CAT"),
    -260            exp.ArrayJoin: rename_func("ARRAY_TO_STRING"),
    -261            exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this),
    -262            exp.DateStrToDate: datestrtodate_sql,
    -263            exp.DataType: _datatype_sql,
    -264            exp.If: rename_func("IFF"),
    -265            exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    -266            exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    -267            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    -268            exp.Matches: rename_func("DECODE"),
    -269            exp.StrPosition: lambda self, e: self.func(
    -270                "POSITION", e.args.get("substr"), e.this, e.args.get("position")
    -271            ),
    -272            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -273            exp.TimeStrToTime: timestrtotime_sql,
    -274            exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})",
    -275            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
    -276            exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"),
    -277            exp.UnixToTime: _unix_to_time_sql,
    -278            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -279        }
    -280
    -281        TYPE_MAPPING = {
    -282            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -283            exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ",
    -284        }
    -285
    -286        STAR_MAPPING = {
    -287            "except": "EXCLUDE",
    -288            "replace": "RENAME",
    -289        }
    -290
    -291        PROPERTIES_LOCATION = {
    -292            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -293            exp.SetProperty: exp.Properties.Location.UNSUPPORTED,
    -294        }
    -295
    -296        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    -297            return self.binary(expression, "ILIKE ANY")
    +            
    268    class Generator(generator.Generator):
    +269        PARAMETER_TOKEN = "$"
    +270        INTEGER_DIVISION = False
    +271        MATCHED_BY_SOURCE = False
    +272
    +273        TRANSFORMS = {
    +274            **generator.Generator.TRANSFORMS,  # type: ignore
    +275            exp.Array: inline_array_sql,
    +276            exp.ArrayConcat: rename_func("ARRAY_CAT"),
    +277            exp.ArrayJoin: rename_func("ARRAY_TO_STRING"),
    +278            exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this),
    +279            exp.DateStrToDate: datestrtodate_sql,
    +280            exp.DataType: _datatype_sql,
    +281            exp.If: rename_func("IFF"),
    +282            exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    +283            exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    +284            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    +285            exp.Matches: rename_func("DECODE"),
    +286            exp.StrPosition: lambda self, e: self.func(
    +287                "POSITION", e.args.get("substr"), e.this, e.args.get("position")
    +288            ),
    +289            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    +290            exp.TimeStrToTime: timestrtotime_sql,
    +291            exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})",
    +292            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
    +293            exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"),
    +294            exp.UnixToTime: _unix_to_time_sql,
    +295            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    +296            exp.Min: min_or_least,
    +297        }
     298
    -299        def likeany_sql(self, expression: exp.LikeAny) -> str:
    -300            return self.binary(expression, "LIKE ANY")
    -301
    -302        def except_op(self, expression):
    -303            if not expression.args.get("distinct", False):
    -304                self.unsupported("EXCEPT with All is not supported in Snowflake")
    -305            return super().except_op(expression)
    -306
    -307        def intersect_op(self, expression):
    -308            if not expression.args.get("distinct", False):
    -309                self.unsupported("INTERSECT with All is not supported in Snowflake")
    -310            return super().intersect_op(expression)
    -311
    -312        def values_sql(self, expression: exp.Values) -> str:
    -313            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    -314
    -315            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    -316            from adding quotes to the column by using the `identify` argument when generating the SQL.
    -317            """
    -318            alias = expression.args.get("alias")
    -319            if alias and alias.args.get("columns"):
    -320                expression = expression.transform(
    -321                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -322                    if isinstance(node, exp.Identifier)
    -323                    and isinstance(node.parent, exp.TableAlias)
    -324                    and node.arg_key == "columns"
    -325                    else node,
    -326                )
    -327                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    -328            return super().values_sql(expression)
    +299        TYPE_MAPPING = {
    +300            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +301            exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ",
    +302        }
    +303
    +304        STAR_MAPPING = {
    +305            "except": "EXCLUDE",
    +306            "replace": "RENAME",
    +307        }
    +308
    +309        PROPERTIES_LOCATION = {
    +310            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +311            exp.SetProperty: exp.Properties.Location.UNSUPPORTED,
    +312        }
    +313
    +314        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    +315            return self.binary(expression, "ILIKE ANY")
    +316
    +317        def likeany_sql(self, expression: exp.LikeAny) -> str:
    +318            return self.binary(expression, "LIKE ANY")
    +319
    +320        def except_op(self, expression):
    +321            if not expression.args.get("distinct", False):
    +322                self.unsupported("EXCEPT with All is not supported in Snowflake")
    +323            return super().except_op(expression)
    +324
    +325        def intersect_op(self, expression):
    +326            if not expression.args.get("distinct", False):
    +327                self.unsupported("INTERSECT with All is not supported in Snowflake")
    +328            return super().intersect_op(expression)
     329
    -330        def settag_sql(self, expression: exp.SetTag) -> str:
    -331            action = "UNSET" if expression.args.get("unset") else "SET"
    -332            return f"{action} TAG {self.expressions(expression)}"
    -333
    -334        def select_sql(self, expression: exp.Select) -> str:
    -335            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    -336            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    -337            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    -338            generating the SQL.
    -339
    -340            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    -341            expression. This might not be true in a case where the same column name can be sourced from another table that can
    -342            properly quote but should be true in most cases.
    -343            """
    -344            values_expressions = expression.find_all(exp.Values)
    -345            values_identifiers = set(
    -346                flatten(
    -347                    v.args.get("alias", exp.Alias()).args.get("columns", [])
    -348                    for v in values_expressions
    -349                )
    -350            )
    -351            if values_identifiers:
    -352                expression = expression.transform(
    -353                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -354                    if isinstance(node, exp.Identifier) and node in values_identifiers
    -355                    else node,
    -356                )
    -357                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    -358            return super().select_sql(expression)
    -359
    -360        def describe_sql(self, expression: exp.Describe) -> str:
    -361            # Default to table if kind is unknown
    -362            kind_value = expression.args.get("kind") or "TABLE"
    -363            kind = f" {kind_value}" if kind_value else ""
    -364            this = f" {self.sql(expression, 'this')}"
    -365            return f"DESCRIBE{kind}{this}"
    -366
    -367        def generatedasidentitycolumnconstraint_sql(
    -368            self, expression: exp.GeneratedAsIdentityColumnConstraint
    -369        ) -> str:
    -370            start = expression.args.get("start")
    -371            start = f" START {start}" if start else ""
    -372            increment = expression.args.get("increment")
    -373            increment = f" INCREMENT {increment}" if increment else ""
    -374            return f"AUTOINCREMENT{start}{increment}"
    +330        def values_sql(self, expression: exp.Values) -> str:
    +331            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    +332
    +333            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    +334            from adding quotes to the column by using the `identify` argument when generating the SQL.
    +335            """
    +336            alias = expression.args.get("alias")
    +337            if alias and alias.args.get("columns"):
    +338                expression = expression.transform(
    +339                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +340                    if isinstance(node, exp.Identifier)
    +341                    and isinstance(node.parent, exp.TableAlias)
    +342                    and node.arg_key == "columns"
    +343                    else node,
    +344                )
    +345                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    +346            return super().values_sql(expression)
    +347
    +348        def settag_sql(self, expression: exp.SetTag) -> str:
    +349            action = "UNSET" if expression.args.get("unset") else "SET"
    +350            return f"{action} TAG {self.expressions(expression)}"
    +351
    +352        def select_sql(self, expression: exp.Select) -> str:
    +353            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    +354            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    +355            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    +356            generating the SQL.
    +357
    +358            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    +359            expression. This might not be true in a case where the same column name can be sourced from another table that can
    +360            properly quote but should be true in most cases.
    +361            """
    +362            values_identifiers = set(
    +363                flatten(
    +364                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
    +365                    for v in expression.find_all(exp.Values)
    +366                )
    +367            )
    +368            if values_identifiers:
    +369                expression = expression.transform(
    +370                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +371                    if isinstance(node, exp.Identifier) and node in values_identifiers
    +372                    else node,
    +373                )
    +374                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    +375            return super().select_sql(expression)
    +376
    +377        def describe_sql(self, expression: exp.Describe) -> str:
    +378            # Default to table if kind is unknown
    +379            kind_value = expression.args.get("kind") or "TABLE"
    +380            kind = f" {kind_value}" if kind_value else ""
    +381            this = f" {self.sql(expression, 'this')}"
    +382            return f"DESCRIBE{kind}{this}"
    +383
    +384        def generatedasidentitycolumnconstraint_sql(
    +385            self, expression: exp.GeneratedAsIdentityColumnConstraint
    +386        ) -> str:
    +387            start = expression.args.get("start")
    +388            start = f" START {start}" if start else ""
    +389            increment = expression.args.get("increment")
    +390            increment = f" INCREMENT {increment}" if increment else ""
    +391            return f"AUTOINCREMENT{start}{increment}"
     
    @@ -1117,8 +1154,8 @@ Default: True
    -
    296        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    -297            return self.binary(expression, "ILIKE ANY")
    +            
    314        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    +315            return self.binary(expression, "ILIKE ANY")
     
    @@ -1136,8 +1173,8 @@ Default: True
    -
    299        def likeany_sql(self, expression: exp.LikeAny) -> str:
    -300            return self.binary(expression, "LIKE ANY")
    +            
    317        def likeany_sql(self, expression: exp.LikeAny) -> str:
    +318            return self.binary(expression, "LIKE ANY")
     
    @@ -1155,10 +1192,10 @@ Default: True
    -
    302        def except_op(self, expression):
    -303            if not expression.args.get("distinct", False):
    -304                self.unsupported("EXCEPT with All is not supported in Snowflake")
    -305            return super().except_op(expression)
    +            
    320        def except_op(self, expression):
    +321            if not expression.args.get("distinct", False):
    +322                self.unsupported("EXCEPT with All is not supported in Snowflake")
    +323            return super().except_op(expression)
     
    @@ -1176,10 +1213,10 @@ Default: True
    -
    307        def intersect_op(self, expression):
    -308            if not expression.args.get("distinct", False):
    -309                self.unsupported("INTERSECT with All is not supported in Snowflake")
    -310            return super().intersect_op(expression)
    +            
    325        def intersect_op(self, expression):
    +326            if not expression.args.get("distinct", False):
    +327                self.unsupported("INTERSECT with All is not supported in Snowflake")
    +328            return super().intersect_op(expression)
     
    @@ -1197,23 +1234,23 @@ Default: True
    -
    312        def values_sql(self, expression: exp.Values) -> str:
    -313            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    -314
    -315            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    -316            from adding quotes to the column by using the `identify` argument when generating the SQL.
    -317            """
    -318            alias = expression.args.get("alias")
    -319            if alias and alias.args.get("columns"):
    -320                expression = expression.transform(
    -321                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -322                    if isinstance(node, exp.Identifier)
    -323                    and isinstance(node.parent, exp.TableAlias)
    -324                    and node.arg_key == "columns"
    -325                    else node,
    -326                )
    -327                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    -328            return super().values_sql(expression)
    +            
    330        def values_sql(self, expression: exp.Values) -> str:
    +331            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    +332
    +333            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    +334            from adding quotes to the column by using the `identify` argument when generating the SQL.
    +335            """
    +336            alias = expression.args.get("alias")
    +337            if alias and alias.args.get("columns"):
    +338                expression = expression.transform(
    +339                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +340                    if isinstance(node, exp.Identifier)
    +341                    and isinstance(node.parent, exp.TableAlias)
    +342                    and node.arg_key == "columns"
    +343                    else node,
    +344                )
    +345                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    +346            return super().values_sql(expression)
     
    @@ -1236,9 +1273,9 @@ from adding quotes to the column by using the identify argument whe
    -
    330        def settag_sql(self, expression: exp.SetTag) -> str:
    -331            action = "UNSET" if expression.args.get("unset") else "SET"
    -332            return f"{action} TAG {self.expressions(expression)}"
    +            
    348        def settag_sql(self, expression: exp.SetTag) -> str:
    +349            action = "UNSET" if expression.args.get("unset") else "SET"
    +350            return f"{action} TAG {self.expressions(expression)}"
     
    @@ -1256,31 +1293,30 @@ from adding quotes to the column by using the identify argument whe
    -
    334        def select_sql(self, expression: exp.Select) -> str:
    -335            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    -336            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    -337            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    -338            generating the SQL.
    -339
    -340            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    -341            expression. This might not be true in a case where the same column name can be sourced from another table that can
    -342            properly quote but should be true in most cases.
    -343            """
    -344            values_expressions = expression.find_all(exp.Values)
    -345            values_identifiers = set(
    -346                flatten(
    -347                    v.args.get("alias", exp.Alias()).args.get("columns", [])
    -348                    for v in values_expressions
    -349                )
    -350            )
    -351            if values_identifiers:
    -352                expression = expression.transform(
    -353                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -354                    if isinstance(node, exp.Identifier) and node in values_identifiers
    -355                    else node,
    -356                )
    -357                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    -358            return super().select_sql(expression)
    +            
    352        def select_sql(self, expression: exp.Select) -> str:
    +353            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    +354            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    +355            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    +356            generating the SQL.
    +357
    +358            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    +359            expression. This might not be true in a case where the same column name can be sourced from another table that can
    +360            properly quote but should be true in most cases.
    +361            """
    +362            values_identifiers = set(
    +363                flatten(
    +364                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
    +365                    for v in expression.find_all(exp.Values)
    +366                )
    +367            )
    +368            if values_identifiers:
    +369                expression = expression.transform(
    +370                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +371                    if isinstance(node, exp.Identifier) and node in values_identifiers
    +372                    else node,
    +373                )
    +374                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    +375            return super().select_sql(expression)
     
    @@ -1307,12 +1343,12 @@ properly quote but should be true in most cases.

    -
    360        def describe_sql(self, expression: exp.Describe) -> str:
    -361            # Default to table if kind is unknown
    -362            kind_value = expression.args.get("kind") or "TABLE"
    -363            kind = f" {kind_value}" if kind_value else ""
    -364            this = f" {self.sql(expression, 'this')}"
    -365            return f"DESCRIBE{kind}{this}"
    +            
    377        def describe_sql(self, expression: exp.Describe) -> str:
    +378            # Default to table if kind is unknown
    +379            kind_value = expression.args.get("kind") or "TABLE"
    +380            kind = f" {kind_value}" if kind_value else ""
    +381            this = f" {self.sql(expression, 'this')}"
    +382            return f"DESCRIBE{kind}{this}"
     
    @@ -1330,14 +1366,14 @@ properly quote but should be true in most cases.

    -
    367        def generatedasidentitycolumnconstraint_sql(
    -368            self, expression: exp.GeneratedAsIdentityColumnConstraint
    -369        ) -> str:
    -370            start = expression.args.get("start")
    -371            start = f" START {start}" if start else ""
    -372            increment = expression.args.get("increment")
    -373            increment = f" INCREMENT {increment}" if increment else ""
    -374            return f"AUTOINCREMENT{start}{increment}"
    +            
    384        def generatedasidentitycolumnconstraint_sql(
    +385            self, expression: exp.GeneratedAsIdentityColumnConstraint
    +386        ) -> str:
    +387            start = expression.args.get("start")
    +388            start = f" START {start}" if start else ""
    +389            increment = expression.args.get("increment")
    +390            increment = f" INCREMENT {increment}" if increment else ""
    +391            return f"AUTOINCREMENT{start}{increment}"
     
    @@ -1412,6 +1448,7 @@ properly quote but should be true in most cases.

    intersect_sql
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -1511,6 +1548,7 @@ properly quote but should be true in most cases.

    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/spark.html b/docs/sqlglot/dialects/spark.html index e9c0f4e..b6eb666 100644 --- a/docs/sqlglot/dialects/spark.html +++ b/docs/sqlglot/dialects/spark.html @@ -778,6 +778,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -878,6 +879,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/sqlite.html b/docs/sqlglot/dialects/sqlite.html index 5cb5e01..369d58c 100644 --- a/docs/sqlglot/dialects/sqlite.html +++ b/docs/sqlglot/dialects/sqlite.html @@ -48,6 +48,12 @@
  • SQLite.Generator
      +
    • + fetch_sql +
    • +
    • + least_sql +
    • transaction_sql
    • @@ -95,94 +101,98 @@ 13from sqlglot.tokens import TokenType 14 15 - 16def _fetch_sql(self, expression): - 17 return self.limit_sql(exp.Limit(expression=expression.args.get("count"))) - 18 - 19 - 20# https://www.sqlite.org/lang_aggfunc.html#group_concat - 21def _group_concat_sql(self, expression): - 22 this = expression.this - 23 distinct = expression.find(exp.Distinct) - 24 if distinct: - 25 this = distinct.expressions[0] - 26 distinct = "DISTINCT " - 27 - 28 if isinstance(expression.this, exp.Order): - 29 self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.") - 30 if expression.this.this and not distinct: - 31 this = expression.this.this + 16# https://www.sqlite.org/lang_aggfunc.html#group_concat + 17def _group_concat_sql(self, expression): + 18 this = expression.this + 19 distinct = expression.find(exp.Distinct) + 20 if distinct: + 21 this = distinct.expressions[0] + 22 distinct = "DISTINCT " + 23 + 24 if isinstance(expression.this, exp.Order): + 25 self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.") + 26 if expression.this.this and not distinct: + 27 this = expression.this.this + 28 + 29 separator = expression.args.get("separator") + 30 return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})" + 31 32 - 33 separator = expression.args.get("separator") - 34 return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})" - 35 - 36 - 37def _date_add_sql(self, expression): - 38 modifier = expression.expression - 39 modifier = expression.name if modifier.is_string else self.sql(modifier) - 40 unit = expression.args.get("unit") - 41 modifier = f"'{modifier} {unit.name}'" if unit else f"'{modifier}'" - 42 return self.func("DATE", expression.this, modifier) - 43 - 44 - 45class SQLite(Dialect): - 46 class Tokenizer(tokens.Tokenizer): - 47 IDENTIFIERS = ['"', ("[", "]"), "`"] - 48 HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", ""), ("0X", "")] + 33def _date_add_sql(self, expression): + 34 modifier = expression.expression + 35 modifier = expression.name if modifier.is_string else self.sql(modifier) + 36 unit = expression.args.get("unit") + 37 modifier = f"'{modifier} {unit.name}'" if unit else f"'{modifier}'" + 38 return self.func("DATE", expression.this, modifier) + 39 + 40 + 41class SQLite(Dialect): + 42 class Tokenizer(tokens.Tokenizer): + 43 IDENTIFIERS = ['"', ("[", "]"), "`"] + 44 HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", ""), ("0X", "")] + 45 + 46 KEYWORDS = { + 47 **tokens.Tokenizer.KEYWORDS, + 48 } 49 - 50 KEYWORDS = { - 51 **tokens.Tokenizer.KEYWORDS, - 52 } - 53 - 54 class Parser(parser.Parser): - 55 FUNCTIONS = { - 56 **parser.Parser.FUNCTIONS, # type: ignore - 57 "EDITDIST3": exp.Levenshtein.from_arg_list, - 58 } - 59 - 60 class Generator(generator.Generator): - 61 TYPE_MAPPING = { - 62 **generator.Generator.TYPE_MAPPING, # type: ignore - 63 exp.DataType.Type.BOOLEAN: "INTEGER", - 64 exp.DataType.Type.TINYINT: "INTEGER", - 65 exp.DataType.Type.SMALLINT: "INTEGER", - 66 exp.DataType.Type.INT: "INTEGER", - 67 exp.DataType.Type.BIGINT: "INTEGER", - 68 exp.DataType.Type.FLOAT: "REAL", - 69 exp.DataType.Type.DOUBLE: "REAL", - 70 exp.DataType.Type.DECIMAL: "REAL", - 71 exp.DataType.Type.CHAR: "TEXT", - 72 exp.DataType.Type.NCHAR: "TEXT", - 73 exp.DataType.Type.VARCHAR: "TEXT", - 74 exp.DataType.Type.NVARCHAR: "TEXT", - 75 exp.DataType.Type.BINARY: "BLOB", - 76 exp.DataType.Type.VARBINARY: "BLOB", + 50 class Parser(parser.Parser): + 51 FUNCTIONS = { + 52 **parser.Parser.FUNCTIONS, # type: ignore + 53 "EDITDIST3": exp.Levenshtein.from_arg_list, + 54 } + 55 + 56 class Generator(generator.Generator): + 57 TYPE_MAPPING = { + 58 **generator.Generator.TYPE_MAPPING, # type: ignore + 59 exp.DataType.Type.BOOLEAN: "INTEGER", + 60 exp.DataType.Type.TINYINT: "INTEGER", + 61 exp.DataType.Type.SMALLINT: "INTEGER", + 62 exp.DataType.Type.INT: "INTEGER", + 63 exp.DataType.Type.BIGINT: "INTEGER", + 64 exp.DataType.Type.FLOAT: "REAL", + 65 exp.DataType.Type.DOUBLE: "REAL", + 66 exp.DataType.Type.DECIMAL: "REAL", + 67 exp.DataType.Type.CHAR: "TEXT", + 68 exp.DataType.Type.NCHAR: "TEXT", + 69 exp.DataType.Type.VARCHAR: "TEXT", + 70 exp.DataType.Type.NVARCHAR: "TEXT", + 71 exp.DataType.Type.BINARY: "BLOB", + 72 exp.DataType.Type.VARBINARY: "BLOB", + 73 } + 74 + 75 TOKEN_MAPPING = { + 76 TokenType.AUTO_INCREMENT: "AUTOINCREMENT", 77 } 78 - 79 TOKEN_MAPPING = { - 80 TokenType.AUTO_INCREMENT: "AUTOINCREMENT", - 81 } - 82 - 83 TRANSFORMS = { - 84 **generator.Generator.TRANSFORMS, # type: ignore - 85 exp.DateAdd: _date_add_sql, - 86 exp.ILike: no_ilike_sql, - 87 exp.JSONExtract: arrow_json_extract_sql, - 88 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, - 89 exp.JSONBExtract: arrow_json_extract_sql, - 90 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, - 91 exp.Levenshtein: rename_func("EDITDIST3"), - 92 exp.TableSample: no_tablesample_sql, - 93 exp.DateStrToDate: lambda self, e: self.sql(e, "this"), - 94 exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), - 95 exp.TryCast: no_trycast_sql, - 96 exp.GroupConcat: _group_concat_sql, - 97 exp.Fetch: _fetch_sql, - 98 } - 99 -100 def transaction_sql(self, expression): -101 this = expression.this -102 this = f" {this}" if this else "" -103 return f"BEGIN{this} TRANSACTION" + 79 TRANSFORMS = { + 80 **generator.Generator.TRANSFORMS, # type: ignore + 81 exp.DateAdd: _date_add_sql, + 82 exp.ILike: no_ilike_sql, + 83 exp.JSONExtract: arrow_json_extract_sql, + 84 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, + 85 exp.JSONBExtract: arrow_json_extract_sql, + 86 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, + 87 exp.Levenshtein: rename_func("EDITDIST3"), + 88 exp.TableSample: no_tablesample_sql, + 89 exp.DateStrToDate: lambda self, e: self.sql(e, "this"), + 90 exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), + 91 exp.TryCast: no_trycast_sql, + 92 exp.GroupConcat: _group_concat_sql, + 93 } + 94 + 95 def fetch_sql(self, expression): + 96 return self.limit_sql(exp.Limit(expression=expression.args.get("count"))) + 97 + 98 def least_sql(self, expression): + 99 if len(expression.expressions) > 1: +100 return rename_func("MIN")(self, expression) +101 +102 return self.expressions(expression) +103 +104 def transaction_sql(self, expression): +105 this = expression.this +106 this = f" {this}" if this else "" +107 return f"BEGIN{this} TRANSACTION"
  • @@ -198,65 +208,73 @@ -
     46class SQLite(Dialect):
    - 47    class Tokenizer(tokens.Tokenizer):
    - 48        IDENTIFIERS = ['"', ("[", "]"), "`"]
    - 49        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", ""), ("0X", "")]
    +            
     42class SQLite(Dialect):
    + 43    class Tokenizer(tokens.Tokenizer):
    + 44        IDENTIFIERS = ['"', ("[", "]"), "`"]
    + 45        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", ""), ("0X", "")]
    + 46
    + 47        KEYWORDS = {
    + 48            **tokens.Tokenizer.KEYWORDS,
    + 49        }
      50
    - 51        KEYWORDS = {
    - 52            **tokens.Tokenizer.KEYWORDS,
    - 53        }
    - 54
    - 55    class Parser(parser.Parser):
    - 56        FUNCTIONS = {
    - 57            **parser.Parser.FUNCTIONS,  # type: ignore
    - 58            "EDITDIST3": exp.Levenshtein.from_arg_list,
    - 59        }
    - 60
    - 61    class Generator(generator.Generator):
    - 62        TYPE_MAPPING = {
    - 63            **generator.Generator.TYPE_MAPPING,  # type: ignore
    - 64            exp.DataType.Type.BOOLEAN: "INTEGER",
    - 65            exp.DataType.Type.TINYINT: "INTEGER",
    - 66            exp.DataType.Type.SMALLINT: "INTEGER",
    - 67            exp.DataType.Type.INT: "INTEGER",
    - 68            exp.DataType.Type.BIGINT: "INTEGER",
    - 69            exp.DataType.Type.FLOAT: "REAL",
    - 70            exp.DataType.Type.DOUBLE: "REAL",
    - 71            exp.DataType.Type.DECIMAL: "REAL",
    - 72            exp.DataType.Type.CHAR: "TEXT",
    - 73            exp.DataType.Type.NCHAR: "TEXT",
    - 74            exp.DataType.Type.VARCHAR: "TEXT",
    - 75            exp.DataType.Type.NVARCHAR: "TEXT",
    - 76            exp.DataType.Type.BINARY: "BLOB",
    - 77            exp.DataType.Type.VARBINARY: "BLOB",
    + 51    class Parser(parser.Parser):
    + 52        FUNCTIONS = {
    + 53            **parser.Parser.FUNCTIONS,  # type: ignore
    + 54            "EDITDIST3": exp.Levenshtein.from_arg_list,
    + 55        }
    + 56
    + 57    class Generator(generator.Generator):
    + 58        TYPE_MAPPING = {
    + 59            **generator.Generator.TYPE_MAPPING,  # type: ignore
    + 60            exp.DataType.Type.BOOLEAN: "INTEGER",
    + 61            exp.DataType.Type.TINYINT: "INTEGER",
    + 62            exp.DataType.Type.SMALLINT: "INTEGER",
    + 63            exp.DataType.Type.INT: "INTEGER",
    + 64            exp.DataType.Type.BIGINT: "INTEGER",
    + 65            exp.DataType.Type.FLOAT: "REAL",
    + 66            exp.DataType.Type.DOUBLE: "REAL",
    + 67            exp.DataType.Type.DECIMAL: "REAL",
    + 68            exp.DataType.Type.CHAR: "TEXT",
    + 69            exp.DataType.Type.NCHAR: "TEXT",
    + 70            exp.DataType.Type.VARCHAR: "TEXT",
    + 71            exp.DataType.Type.NVARCHAR: "TEXT",
    + 72            exp.DataType.Type.BINARY: "BLOB",
    + 73            exp.DataType.Type.VARBINARY: "BLOB",
    + 74        }
    + 75
    + 76        TOKEN_MAPPING = {
    + 77            TokenType.AUTO_INCREMENT: "AUTOINCREMENT",
      78        }
      79
    - 80        TOKEN_MAPPING = {
    - 81            TokenType.AUTO_INCREMENT: "AUTOINCREMENT",
    - 82        }
    - 83
    - 84        TRANSFORMS = {
    - 85            **generator.Generator.TRANSFORMS,  # type: ignore
    - 86            exp.DateAdd: _date_add_sql,
    - 87            exp.ILike: no_ilike_sql,
    - 88            exp.JSONExtract: arrow_json_extract_sql,
    - 89            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    - 90            exp.JSONBExtract: arrow_json_extract_sql,
    - 91            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    - 92            exp.Levenshtein: rename_func("EDITDIST3"),
    - 93            exp.TableSample: no_tablesample_sql,
    - 94            exp.DateStrToDate: lambda self, e: self.sql(e, "this"),
    - 95            exp.TimeStrToTime: lambda self, e: self.sql(e, "this"),
    - 96            exp.TryCast: no_trycast_sql,
    - 97            exp.GroupConcat: _group_concat_sql,
    - 98            exp.Fetch: _fetch_sql,
    - 99        }
    -100
    -101        def transaction_sql(self, expression):
    -102            this = expression.this
    -103            this = f" {this}" if this else ""
    -104            return f"BEGIN{this} TRANSACTION"
    + 80        TRANSFORMS = {
    + 81            **generator.Generator.TRANSFORMS,  # type: ignore
    + 82            exp.DateAdd: _date_add_sql,
    + 83            exp.ILike: no_ilike_sql,
    + 84            exp.JSONExtract: arrow_json_extract_sql,
    + 85            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    + 86            exp.JSONBExtract: arrow_json_extract_sql,
    + 87            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    + 88            exp.Levenshtein: rename_func("EDITDIST3"),
    + 89            exp.TableSample: no_tablesample_sql,
    + 90            exp.DateStrToDate: lambda self, e: self.sql(e, "this"),
    + 91            exp.TimeStrToTime: lambda self, e: self.sql(e, "this"),
    + 92            exp.TryCast: no_trycast_sql,
    + 93            exp.GroupConcat: _group_concat_sql,
    + 94        }
    + 95
    + 96        def fetch_sql(self, expression):
    + 97            return self.limit_sql(exp.Limit(expression=expression.args.get("count")))
    + 98
    + 99        def least_sql(self, expression):
    +100            if len(expression.expressions) > 1:
    +101                return rename_func("MIN")(self, expression)
    +102
    +103            return self.expressions(expression)
    +104
    +105        def transaction_sql(self, expression):
    +106            this = expression.this
    +107            this = f" {this}" if this else ""
    +108            return f"BEGIN{this} TRANSACTION"
     
    @@ -290,13 +308,13 @@
    -
    47    class Tokenizer(tokens.Tokenizer):
    -48        IDENTIFIERS = ['"', ("[", "]"), "`"]
    -49        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", ""), ("0X", "")]
    -50
    -51        KEYWORDS = {
    -52            **tokens.Tokenizer.KEYWORDS,
    -53        }
    +            
    43    class Tokenizer(tokens.Tokenizer):
    +44        IDENTIFIERS = ['"', ("[", "]"), "`"]
    +45        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", ""), ("0X", "")]
    +46
    +47        KEYWORDS = {
    +48            **tokens.Tokenizer.KEYWORDS,
    +49        }
     
    @@ -324,11 +342,11 @@
    -
    55    class Parser(parser.Parser):
    -56        FUNCTIONS = {
    -57            **parser.Parser.FUNCTIONS,  # type: ignore
    -58            "EDITDIST3": exp.Levenshtein.from_arg_list,
    -59        }
    +            
    51    class Parser(parser.Parser):
    +52        FUNCTIONS = {
    +53            **parser.Parser.FUNCTIONS,  # type: ignore
    +54            "EDITDIST3": exp.Levenshtein.from_arg_list,
    +55        }
     
    @@ -385,50 +403,58 @@ Default: "nulls_are_small"
    -
     61    class Generator(generator.Generator):
    - 62        TYPE_MAPPING = {
    - 63            **generator.Generator.TYPE_MAPPING,  # type: ignore
    - 64            exp.DataType.Type.BOOLEAN: "INTEGER",
    - 65            exp.DataType.Type.TINYINT: "INTEGER",
    - 66            exp.DataType.Type.SMALLINT: "INTEGER",
    - 67            exp.DataType.Type.INT: "INTEGER",
    - 68            exp.DataType.Type.BIGINT: "INTEGER",
    - 69            exp.DataType.Type.FLOAT: "REAL",
    - 70            exp.DataType.Type.DOUBLE: "REAL",
    - 71            exp.DataType.Type.DECIMAL: "REAL",
    - 72            exp.DataType.Type.CHAR: "TEXT",
    - 73            exp.DataType.Type.NCHAR: "TEXT",
    - 74            exp.DataType.Type.VARCHAR: "TEXT",
    - 75            exp.DataType.Type.NVARCHAR: "TEXT",
    - 76            exp.DataType.Type.BINARY: "BLOB",
    - 77            exp.DataType.Type.VARBINARY: "BLOB",
    +            
     57    class Generator(generator.Generator):
    + 58        TYPE_MAPPING = {
    + 59            **generator.Generator.TYPE_MAPPING,  # type: ignore
    + 60            exp.DataType.Type.BOOLEAN: "INTEGER",
    + 61            exp.DataType.Type.TINYINT: "INTEGER",
    + 62            exp.DataType.Type.SMALLINT: "INTEGER",
    + 63            exp.DataType.Type.INT: "INTEGER",
    + 64            exp.DataType.Type.BIGINT: "INTEGER",
    + 65            exp.DataType.Type.FLOAT: "REAL",
    + 66            exp.DataType.Type.DOUBLE: "REAL",
    + 67            exp.DataType.Type.DECIMAL: "REAL",
    + 68            exp.DataType.Type.CHAR: "TEXT",
    + 69            exp.DataType.Type.NCHAR: "TEXT",
    + 70            exp.DataType.Type.VARCHAR: "TEXT",
    + 71            exp.DataType.Type.NVARCHAR: "TEXT",
    + 72            exp.DataType.Type.BINARY: "BLOB",
    + 73            exp.DataType.Type.VARBINARY: "BLOB",
    + 74        }
    + 75
    + 76        TOKEN_MAPPING = {
    + 77            TokenType.AUTO_INCREMENT: "AUTOINCREMENT",
      78        }
      79
    - 80        TOKEN_MAPPING = {
    - 81            TokenType.AUTO_INCREMENT: "AUTOINCREMENT",
    - 82        }
    - 83
    - 84        TRANSFORMS = {
    - 85            **generator.Generator.TRANSFORMS,  # type: ignore
    - 86            exp.DateAdd: _date_add_sql,
    - 87            exp.ILike: no_ilike_sql,
    - 88            exp.JSONExtract: arrow_json_extract_sql,
    - 89            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    - 90            exp.JSONBExtract: arrow_json_extract_sql,
    - 91            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    - 92            exp.Levenshtein: rename_func("EDITDIST3"),
    - 93            exp.TableSample: no_tablesample_sql,
    - 94            exp.DateStrToDate: lambda self, e: self.sql(e, "this"),
    - 95            exp.TimeStrToTime: lambda self, e: self.sql(e, "this"),
    - 96            exp.TryCast: no_trycast_sql,
    - 97            exp.GroupConcat: _group_concat_sql,
    - 98            exp.Fetch: _fetch_sql,
    - 99        }
    -100
    -101        def transaction_sql(self, expression):
    -102            this = expression.this
    -103            this = f" {this}" if this else ""
    -104            return f"BEGIN{this} TRANSACTION"
    + 80        TRANSFORMS = {
    + 81            **generator.Generator.TRANSFORMS,  # type: ignore
    + 82            exp.DateAdd: _date_add_sql,
    + 83            exp.ILike: no_ilike_sql,
    + 84            exp.JSONExtract: arrow_json_extract_sql,
    + 85            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    + 86            exp.JSONBExtract: arrow_json_extract_sql,
    + 87            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    + 88            exp.Levenshtein: rename_func("EDITDIST3"),
    + 89            exp.TableSample: no_tablesample_sql,
    + 90            exp.DateStrToDate: lambda self, e: self.sql(e, "this"),
    + 91            exp.TimeStrToTime: lambda self, e: self.sql(e, "this"),
    + 92            exp.TryCast: no_trycast_sql,
    + 93            exp.GroupConcat: _group_concat_sql,
    + 94        }
    + 95
    + 96        def fetch_sql(self, expression):
    + 97            return self.limit_sql(exp.Limit(expression=expression.args.get("count")))
    + 98
    + 99        def least_sql(self, expression):
    +100            if len(expression.expressions) > 1:
    +101                return rename_func("MIN")(self, expression)
    +102
    +103            return self.expressions(expression)
    +104
    +105        def transaction_sql(self, expression):
    +106            this = expression.this
    +107            this = f" {this}" if this else ""
    +108            return f"BEGIN{this} TRANSACTION"
     
    @@ -477,6 +503,47 @@ Default: True
    +
    + +
    + + def + fetch_sql(self, expression): + + + +
    + +
    96        def fetch_sql(self, expression):
    +97            return self.limit_sql(exp.Limit(expression=expression.args.get("count")))
    +
    + + + + +
    +
    + +
    + + def + least_sql(self, expression): + + + +
    + +
     99        def least_sql(self, expression):
    +100            if len(expression.expressions) > 1:
    +101                return rename_func("MIN")(self, expression)
    +102
    +103            return self.expressions(expression)
    +
    + + + + +
    @@ -488,10 +555,10 @@ Default: True
    -
    101        def transaction_sql(self, expression):
    -102            this = expression.this
    -103            this = f" {this}" if this else ""
    -104            return f"BEGIN{this} TRANSACTION"
    +            
    105        def transaction_sql(self, expression):
    +106            this = expression.this
    +107            this = f" {this}" if this else ""
    +108            return f"BEGIN{this} TRANSACTION"
     
    @@ -540,7 +607,6 @@ Default: True
    drop_sql
    except_sql
    except_op
    -
    fetch_sql
    filter_sql
    hint_sql
    index_sql
    @@ -570,6 +636,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -670,6 +737,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/starrocks.html b/docs/sqlglot/dialects/starrocks.html index aa3f9ca..0377917 100644 --- a/docs/sqlglot/dialects/starrocks.html +++ b/docs/sqlglot/dialects/starrocks.html @@ -304,6 +304,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -405,6 +406,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/tableau.html b/docs/sqlglot/dialects/tableau.html index 72df320..3edc9bc 100644 --- a/docs/sqlglot/dialects/tableau.html +++ b/docs/sqlglot/dialects/tableau.html @@ -295,6 +295,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -396,6 +397,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/teradata.html b/docs/sqlglot/dialects/teradata.html index 95ac875..91906a1 100644 --- a/docs/sqlglot/dialects/teradata.html +++ b/docs/sqlglot/dialects/teradata.html @@ -95,7 +95,7 @@
      1from __future__ import annotations
       2
       3from sqlglot import exp, generator, parser, tokens
    -  4from sqlglot.dialects.dialect import Dialect
    +  4from sqlglot.dialects.dialect import Dialect, min_or_least
       5from sqlglot.tokens import TokenType
       6
       7
    @@ -220,34 +220,39 @@
     126            exp.PartitionedByProperty: exp.Properties.Location.POST_INDEX,
     127        }
     128
    -129        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
    -130            return f"PARTITION BY {self.sql(expression, 'this')}"
    -131
    -132        # FROM before SET in Teradata UPDATE syntax
    -133        # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause
    -134        def update_sql(self, expression: exp.Update) -> str:
    -135            this = self.sql(expression, "this")
    -136            from_sql = self.sql(expression, "from")
    -137            set_sql = self.expressions(expression, flat=True)
    -138            where_sql = self.sql(expression, "where")
    -139            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
    -140            return self.prepend_ctes(expression, sql)
    -141
    -142        def mod_sql(self, expression: exp.Mod) -> str:
    -143            return self.binary(expression, "MOD")
    -144
    -145        def datatype_sql(self, expression: exp.DataType) -> str:
    -146            type_sql = super().datatype_sql(expression)
    -147            prefix_sql = expression.args.get("prefix")
    -148            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
    +129        TRANSFORMS = {
    +130            **generator.Generator.TRANSFORMS,
    +131            exp.Min: min_or_least,
    +132        }
    +133
    +134        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
    +135            return f"PARTITION BY {self.sql(expression, 'this')}"
    +136
    +137        # FROM before SET in Teradata UPDATE syntax
    +138        # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause
    +139        def update_sql(self, expression: exp.Update) -> str:
    +140            this = self.sql(expression, "this")
    +141            from_sql = self.sql(expression, "from")
    +142            set_sql = self.expressions(expression, flat=True)
    +143            where_sql = self.sql(expression, "where")
    +144            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
    +145            return self.prepend_ctes(expression, sql)
    +146
    +147        def mod_sql(self, expression: exp.Mod) -> str:
    +148            return self.binary(expression, "MOD")
     149
    -150        def rangen_sql(self, expression: exp.RangeN) -> str:
    -151            this = self.sql(expression, "this")
    -152            expressions_sql = self.expressions(expression)
    -153            each_sql = self.sql(expression, "each")
    -154            each_sql = f" EACH {each_sql}" if each_sql else ""
    -155
    -156            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
    +150        def datatype_sql(self, expression: exp.DataType) -> str:
    +151            type_sql = super().datatype_sql(expression)
    +152            prefix_sql = expression.args.get("prefix")
    +153            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
    +154
    +155        def rangen_sql(self, expression: exp.RangeN) -> str:
    +156            this = self.sql(expression, "this")
    +157            expressions_sql = self.expressions(expression)
    +158            each_sql = self.sql(expression, "each")
    +159            each_sql = f" EACH {each_sql}" if each_sql else ""
    +160
    +161            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
     
    @@ -384,34 +389,39 @@
    127 exp.PartitionedByProperty: exp.Properties.Location.POST_INDEX, 128 } 129 -130 def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: -131 return f"PARTITION BY {self.sql(expression, 'this')}" -132 -133 # FROM before SET in Teradata UPDATE syntax -134 # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause -135 def update_sql(self, expression: exp.Update) -> str: -136 this = self.sql(expression, "this") -137 from_sql = self.sql(expression, "from") -138 set_sql = self.expressions(expression, flat=True) -139 where_sql = self.sql(expression, "where") -140 sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}" -141 return self.prepend_ctes(expression, sql) -142 -143 def mod_sql(self, expression: exp.Mod) -> str: -144 return self.binary(expression, "MOD") -145 -146 def datatype_sql(self, expression: exp.DataType) -> str: -147 type_sql = super().datatype_sql(expression) -148 prefix_sql = expression.args.get("prefix") -149 return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql +130 TRANSFORMS = { +131 **generator.Generator.TRANSFORMS, +132 exp.Min: min_or_least, +133 } +134 +135 def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: +136 return f"PARTITION BY {self.sql(expression, 'this')}" +137 +138 # FROM before SET in Teradata UPDATE syntax +139 # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause +140 def update_sql(self, expression: exp.Update) -> str: +141 this = self.sql(expression, "this") +142 from_sql = self.sql(expression, "from") +143 set_sql = self.expressions(expression, flat=True) +144 where_sql = self.sql(expression, "where") +145 sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}" +146 return self.prepend_ctes(expression, sql) +147 +148 def mod_sql(self, expression: exp.Mod) -> str: +149 return self.binary(expression, "MOD") 150 -151 def rangen_sql(self, expression: exp.RangeN) -> str: -152 this = self.sql(expression, "this") -153 expressions_sql = self.expressions(expression) -154 each_sql = self.sql(expression, "each") -155 each_sql = f" EACH {each_sql}" if each_sql else "" -156 -157 return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})" +151 def datatype_sql(self, expression: exp.DataType) -> str: +152 type_sql = super().datatype_sql(expression) +153 prefix_sql = expression.args.get("prefix") +154 return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql +155 +156 def rangen_sql(self, expression: exp.RangeN) -> str: +157 this = self.sql(expression, "this") +158 expressions_sql = self.expressions(expression) +159 each_sql = self.sql(expression, "each") +160 each_sql = f" EACH {each_sql}" if each_sql else "" +161 +162 return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
    @@ -646,34 +656,39 @@ Default: "nulls_are_small" 127 exp.PartitionedByProperty: exp.Properties.Location.POST_INDEX, 128 } 129 -130 def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: -131 return f"PARTITION BY {self.sql(expression, 'this')}" -132 -133 # FROM before SET in Teradata UPDATE syntax -134 # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause -135 def update_sql(self, expression: exp.Update) -> str: -136 this = self.sql(expression, "this") -137 from_sql = self.sql(expression, "from") -138 set_sql = self.expressions(expression, flat=True) -139 where_sql = self.sql(expression, "where") -140 sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}" -141 return self.prepend_ctes(expression, sql) -142 -143 def mod_sql(self, expression: exp.Mod) -> str: -144 return self.binary(expression, "MOD") -145 -146 def datatype_sql(self, expression: exp.DataType) -> str: -147 type_sql = super().datatype_sql(expression) -148 prefix_sql = expression.args.get("prefix") -149 return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql +130 TRANSFORMS = { +131 **generator.Generator.TRANSFORMS, +132 exp.Min: min_or_least, +133 } +134 +135 def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: +136 return f"PARTITION BY {self.sql(expression, 'this')}" +137 +138 # FROM before SET in Teradata UPDATE syntax +139 # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause +140 def update_sql(self, expression: exp.Update) -> str: +141 this = self.sql(expression, "this") +142 from_sql = self.sql(expression, "from") +143 set_sql = self.expressions(expression, flat=True) +144 where_sql = self.sql(expression, "where") +145 sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}" +146 return self.prepend_ctes(expression, sql) +147 +148 def mod_sql(self, expression: exp.Mod) -> str: +149 return self.binary(expression, "MOD") 150 -151 def rangen_sql(self, expression: exp.RangeN) -> str: -152 this = self.sql(expression, "this") -153 expressions_sql = self.expressions(expression) -154 each_sql = self.sql(expression, "each") -155 each_sql = f" EACH {each_sql}" if each_sql else "" -156 -157 return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})" +151 def datatype_sql(self, expression: exp.DataType) -> str: +152 type_sql = super().datatype_sql(expression) +153 prefix_sql = expression.args.get("prefix") +154 return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql +155 +156 def rangen_sql(self, expression: exp.RangeN) -> str: +157 this = self.sql(expression, "this") +158 expressions_sql = self.expressions(expression) +159 each_sql = self.sql(expression, "each") +160 each_sql = f" EACH {each_sql}" if each_sql else "" +161 +162 return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
    @@ -733,8 +748,8 @@ Default: True -
    130        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
    -131            return f"PARTITION BY {self.sql(expression, 'this')}"
    +            
    135        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
    +136            return f"PARTITION BY {self.sql(expression, 'this')}"
     
    @@ -752,13 +767,13 @@ Default: True
    -
    135        def update_sql(self, expression: exp.Update) -> str:
    -136            this = self.sql(expression, "this")
    -137            from_sql = self.sql(expression, "from")
    -138            set_sql = self.expressions(expression, flat=True)
    -139            where_sql = self.sql(expression, "where")
    -140            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
    -141            return self.prepend_ctes(expression, sql)
    +            
    140        def update_sql(self, expression: exp.Update) -> str:
    +141            this = self.sql(expression, "this")
    +142            from_sql = self.sql(expression, "from")
    +143            set_sql = self.expressions(expression, flat=True)
    +144            where_sql = self.sql(expression, "where")
    +145            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
    +146            return self.prepend_ctes(expression, sql)
     
    @@ -776,8 +791,8 @@ Default: True
    -
    143        def mod_sql(self, expression: exp.Mod) -> str:
    -144            return self.binary(expression, "MOD")
    +            
    148        def mod_sql(self, expression: exp.Mod) -> str:
    +149            return self.binary(expression, "MOD")
     
    @@ -795,10 +810,10 @@ Default: True
    -
    146        def datatype_sql(self, expression: exp.DataType) -> str:
    -147            type_sql = super().datatype_sql(expression)
    -148            prefix_sql = expression.args.get("prefix")
    -149            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
    +            
    151        def datatype_sql(self, expression: exp.DataType) -> str:
    +152            type_sql = super().datatype_sql(expression)
    +153            prefix_sql = expression.args.get("prefix")
    +154            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
     
    @@ -816,13 +831,13 @@ Default: True
    -
    151        def rangen_sql(self, expression: exp.RangeN) -> str:
    -152            this = self.sql(expression, "this")
    -153            expressions_sql = self.expressions(expression)
    -154            each_sql = self.sql(expression, "each")
    -155            each_sql = f" EACH {each_sql}" if each_sql else ""
    -156
    -157            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
    +            
    156        def rangen_sql(self, expression: exp.RangeN) -> str:
    +157            this = self.sql(expression, "this")
    +158            expressions_sql = self.expressions(expression)
    +159            each_sql = self.sql(expression, "each")
    +160            each_sql = f" EACH {each_sql}" if each_sql else ""
    +161
    +162            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
     
    @@ -900,6 +915,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -1000,6 +1016,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/trino.html b/docs/sqlglot/dialects/trino.html index 2a04e23..053a96e 100644 --- a/docs/sqlglot/dialects/trino.html +++ b/docs/sqlglot/dialects/trino.html @@ -272,6 +272,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -372,6 +373,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/dialects/tsql.html b/docs/sqlglot/dialects/tsql.html index 54ef095..89139c7 100644 --- a/docs/sqlglot/dialects/tsql.html +++ b/docs/sqlglot/dialects/tsql.html @@ -92,460 +92,466 @@
    4import typing as t 5 6from sqlglot import exp, generator, parser, tokens - 7from sqlglot.dialects.dialect import Dialect, parse_date_delta, rename_func - 8from sqlglot.expressions import DataType - 9from sqlglot.helper import seq_get - 10from sqlglot.time import format_time - 11from sqlglot.tokens import TokenType - 12 - 13FULL_FORMAT_TIME_MAPPING = { - 14 "weekday": "%A", - 15 "dw": "%A", - 16 "w": "%A", - 17 "month": "%B", - 18 "mm": "%B", - 19 "m": "%B", - 20} - 21 - 22DATE_DELTA_INTERVAL = { - 23 "year": "year", - 24 "yyyy": "year", - 25 "yy": "year", - 26 "quarter": "quarter", - 27 "qq": "quarter", - 28 "q": "quarter", - 29 "month": "month", - 30 "mm": "month", - 31 "m": "month", - 32 "week": "week", - 33 "ww": "week", - 34 "wk": "week", - 35 "day": "day", - 36 "dd": "day", - 37 "d": "day", - 38} - 39 - 40 - 41DATE_FMT_RE = re.compile("([dD]{1,2})|([mM]{1,2})|([yY]{1,4})|([hH]{1,2})|([sS]{1,2})") - 42 - 43# N = Numeric, C=Currency - 44TRANSPILE_SAFE_NUMBER_FMT = {"N", "C"} + 7from sqlglot.dialects.dialect import ( + 8 Dialect, + 9 min_or_least, + 10 parse_date_delta, + 11 rename_func, + 12) + 13from sqlglot.expressions import DataType + 14from sqlglot.helper import seq_get + 15from sqlglot.time import format_time + 16from sqlglot.tokens import TokenType + 17 + 18FULL_FORMAT_TIME_MAPPING = { + 19 "weekday": "%A", + 20 "dw": "%A", + 21 "w": "%A", + 22 "month": "%B", + 23 "mm": "%B", + 24 "m": "%B", + 25} + 26 + 27DATE_DELTA_INTERVAL = { + 28 "year": "year", + 29 "yyyy": "year", + 30 "yy": "year", + 31 "quarter": "quarter", + 32 "qq": "quarter", + 33 "q": "quarter", + 34 "month": "month", + 35 "mm": "month", + 36 "m": "month", + 37 "week": "week", + 38 "ww": "week", + 39 "wk": "week", + 40 "day": "day", + 41 "dd": "day", + 42 "d": "day", + 43} + 44 45 - 46 - 47def _format_time_lambda(exp_class, full_format_mapping=None, default=None): - 48 def _format_time(args): - 49 return exp_class( - 50 this=seq_get(args, 1), - 51 format=exp.Literal.string( - 52 format_time( - 53 seq_get(args, 0).name or (TSQL.time_format if default is True else default), - 54 {**TSQL.time_mapping, **FULL_FORMAT_TIME_MAPPING} - 55 if full_format_mapping - 56 else TSQL.time_mapping, - 57 ) - 58 ), - 59 ) - 60 - 61 return _format_time - 62 - 63 - 64def _parse_format(args): - 65 fmt = seq_get(args, 1) - 66 number_fmt = fmt.name in TRANSPILE_SAFE_NUMBER_FMT or not DATE_FMT_RE.search(fmt.this) - 67 if number_fmt: - 68 return exp.NumberToStr(this=seq_get(args, 0), format=fmt) - 69 return exp.TimeToStr( - 70 this=seq_get(args, 0), - 71 format=exp.Literal.string( - 72 format_time(fmt.name, TSQL.format_time_mapping) - 73 if len(fmt.name) == 1 - 74 else format_time(fmt.name, TSQL.time_mapping) - 75 ), - 76 ) - 77 - 78 - 79def _parse_eomonth(args): - 80 date = seq_get(args, 0) - 81 month_lag = seq_get(args, 1) - 82 unit = DATE_DELTA_INTERVAL.get("month") + 46DATE_FMT_RE = re.compile("([dD]{1,2})|([mM]{1,2})|([yY]{1,4})|([hH]{1,2})|([sS]{1,2})") + 47 + 48# N = Numeric, C=Currency + 49TRANSPILE_SAFE_NUMBER_FMT = {"N", "C"} + 50 + 51 + 52def _format_time_lambda(exp_class, full_format_mapping=None, default=None): + 53 def _format_time(args): + 54 return exp_class( + 55 this=seq_get(args, 1), + 56 format=exp.Literal.string( + 57 format_time( + 58 seq_get(args, 0).name or (TSQL.time_format if default is True else default), + 59 {**TSQL.time_mapping, **FULL_FORMAT_TIME_MAPPING} + 60 if full_format_mapping + 61 else TSQL.time_mapping, + 62 ) + 63 ), + 64 ) + 65 + 66 return _format_time + 67 + 68 + 69def _parse_format(args): + 70 fmt = seq_get(args, 1) + 71 number_fmt = fmt.name in TRANSPILE_SAFE_NUMBER_FMT or not DATE_FMT_RE.search(fmt.this) + 72 if number_fmt: + 73 return exp.NumberToStr(this=seq_get(args, 0), format=fmt) + 74 return exp.TimeToStr( + 75 this=seq_get(args, 0), + 76 format=exp.Literal.string( + 77 format_time(fmt.name, TSQL.format_time_mapping) + 78 if len(fmt.name) == 1 + 79 else format_time(fmt.name, TSQL.time_mapping) + 80 ), + 81 ) + 82 83 - 84 if month_lag is None: - 85 return exp.LastDateOfMonth(this=date) - 86 - 87 # Remove month lag argument in parser as its compared with the number of arguments of the resulting class - 88 args.remove(month_lag) - 89 - 90 return exp.LastDateOfMonth(this=exp.DateAdd(this=date, expression=month_lag, unit=unit)) + 84def _parse_eomonth(args): + 85 date = seq_get(args, 0) + 86 month_lag = seq_get(args, 1) + 87 unit = DATE_DELTA_INTERVAL.get("month") + 88 + 89 if month_lag is None: + 90 return exp.LastDateOfMonth(this=date) 91 - 92 - 93def generate_date_delta_with_unit_sql(self, e): - 94 func = "DATEADD" if isinstance(e, exp.DateAdd) else "DATEDIFF" - 95 return self.func(func, e.text("unit"), e.expression, e.this) + 92 # Remove month lag argument in parser as its compared with the number of arguments of the resulting class + 93 args.remove(month_lag) + 94 + 95 return exp.LastDateOfMonth(this=exp.DateAdd(this=date, expression=month_lag, unit=unit)) 96 97 - 98def _format_sql(self, e): - 99 fmt = ( -100 e.args["format"] -101 if isinstance(e, exp.NumberToStr) -102 else exp.Literal.string(format_time(e.text("format"), TSQL.inverse_time_mapping)) -103 ) -104 return self.func("FORMAT", e.this, fmt) -105 -106 -107def _string_agg_sql(self, e): -108 e = e.copy() -109 -110 this = e.this -111 distinct = e.find(exp.Distinct) -112 if distinct: -113 # exp.Distinct can appear below an exp.Order or an exp.GroupConcat expression -114 self.unsupported("T-SQL STRING_AGG doesn't support DISTINCT.") -115 this = distinct.expressions[0] -116 distinct.pop() -117 -118 order = "" -119 if isinstance(e.this, exp.Order): -120 if e.this.this: -121 this = e.this.this -122 e.this.this.pop() -123 order = f" WITHIN GROUP ({self.sql(e.this)[1:]})" # Order has a leading space -124 -125 separator = e.args.get("separator") or exp.Literal.string(",") -126 return f"STRING_AGG({self.format_args(this, separator)}){order}" -127 -128 -129class TSQL(Dialect): -130 null_ordering = "nulls_are_small" -131 time_format = "'yyyy-mm-dd hh:mm:ss'" + 98def generate_date_delta_with_unit_sql(self, e): + 99 func = "DATEADD" if isinstance(e, exp.DateAdd) else "DATEDIFF" +100 return self.func(func, e.text("unit"), e.expression, e.this) +101 +102 +103def _format_sql(self, e): +104 fmt = ( +105 e.args["format"] +106 if isinstance(e, exp.NumberToStr) +107 else exp.Literal.string(format_time(e.text("format"), TSQL.inverse_time_mapping)) +108 ) +109 return self.func("FORMAT", e.this, fmt) +110 +111 +112def _string_agg_sql(self, e): +113 e = e.copy() +114 +115 this = e.this +116 distinct = e.find(exp.Distinct) +117 if distinct: +118 # exp.Distinct can appear below an exp.Order or an exp.GroupConcat expression +119 self.unsupported("T-SQL STRING_AGG doesn't support DISTINCT.") +120 this = distinct.expressions[0] +121 distinct.pop() +122 +123 order = "" +124 if isinstance(e.this, exp.Order): +125 if e.this.this: +126 this = e.this.this +127 e.this.this.pop() +128 order = f" WITHIN GROUP ({self.sql(e.this)[1:]})" # Order has a leading space +129 +130 separator = e.args.get("separator") or exp.Literal.string(",") +131 return f"STRING_AGG({self.format_args(this, separator)}){order}" 132 -133 time_mapping = { -134 "year": "%Y", -135 "qq": "%q", -136 "q": "%q", -137 "quarter": "%q", -138 "dayofyear": "%j", -139 "day": "%d", -140 "dy": "%d", -141 "y": "%Y", -142 "week": "%W", -143 "ww": "%W", -144 "wk": "%W", -145 "hour": "%h", -146 "hh": "%I", -147 "minute": "%M", -148 "mi": "%M", -149 "n": "%M", -150 "second": "%S", -151 "ss": "%S", -152 "s": "%-S", -153 "millisecond": "%f", -154 "ms": "%f", -155 "weekday": "%W", -156 "dw": "%W", -157 "month": "%m", -158 "mm": "%M", -159 "m": "%-M", -160 "Y": "%Y", -161 "YYYY": "%Y", -162 "YY": "%y", -163 "MMMM": "%B", -164 "MMM": "%b", -165 "MM": "%m", -166 "M": "%-m", -167 "dd": "%d", -168 "d": "%-d", -169 "HH": "%H", -170 "H": "%-H", -171 "h": "%-I", -172 "S": "%f", -173 "yyyy": "%Y", -174 "yy": "%y", -175 } -176 -177 convert_format_mapping = { -178 "0": "%b %d %Y %-I:%M%p", -179 "1": "%m/%d/%y", -180 "2": "%y.%m.%d", -181 "3": "%d/%m/%y", -182 "4": "%d.%m.%y", -183 "5": "%d-%m-%y", -184 "6": "%d %b %y", -185 "7": "%b %d, %y", -186 "8": "%H:%M:%S", -187 "9": "%b %d %Y %-I:%M:%S:%f%p", -188 "10": "mm-dd-yy", -189 "11": "yy/mm/dd", -190 "12": "yymmdd", -191 "13": "%d %b %Y %H:%M:ss:%f", -192 "14": "%H:%M:%S:%f", -193 "20": "%Y-%m-%d %H:%M:%S", -194 "21": "%Y-%m-%d %H:%M:%S.%f", -195 "22": "%m/%d/%y %-I:%M:%S %p", -196 "23": "%Y-%m-%d", -197 "24": "%H:%M:%S", -198 "25": "%Y-%m-%d %H:%M:%S.%f", -199 "100": "%b %d %Y %-I:%M%p", -200 "101": "%m/%d/%Y", -201 "102": "%Y.%m.%d", -202 "103": "%d/%m/%Y", -203 "104": "%d.%m.%Y", -204 "105": "%d-%m-%Y", -205 "106": "%d %b %Y", -206 "107": "%b %d, %Y", -207 "108": "%H:%M:%S", -208 "109": "%b %d %Y %-I:%M:%S:%f%p", -209 "110": "%m-%d-%Y", -210 "111": "%Y/%m/%d", -211 "112": "%Y%m%d", -212 "113": "%d %b %Y %H:%M:%S:%f", -213 "114": "%H:%M:%S:%f", -214 "120": "%Y-%m-%d %H:%M:%S", -215 "121": "%Y-%m-%d %H:%M:%S.%f", -216 } -217 # not sure if complete -218 format_time_mapping = { -219 "y": "%B %Y", -220 "d": "%m/%d/%Y", -221 "H": "%-H", -222 "h": "%-I", -223 "s": "%Y-%m-%d %H:%M:%S", -224 "D": "%A,%B,%Y", -225 "f": "%A,%B,%Y %-I:%M %p", -226 "F": "%A,%B,%Y %-I:%M:%S %p", -227 "g": "%m/%d/%Y %-I:%M %p", -228 "G": "%m/%d/%Y %-I:%M:%S %p", -229 "M": "%B %-d", -230 "m": "%B %-d", -231 "O": "%Y-%m-%dT%H:%M:%S", -232 "u": "%Y-%M-%D %H:%M:%S%z", -233 "U": "%A, %B %D, %Y %H:%M:%S%z", -234 "T": "%-I:%M:%S %p", -235 "t": "%-I:%M", -236 "Y": "%a %Y", -237 } -238 -239 class Tokenizer(tokens.Tokenizer): -240 IDENTIFIERS = ['"', ("[", "]")] -241 -242 QUOTES = ["'", '"'] +133 +134class TSQL(Dialect): +135 null_ordering = "nulls_are_small" +136 time_format = "'yyyy-mm-dd hh:mm:ss'" +137 +138 time_mapping = { +139 "year": "%Y", +140 "qq": "%q", +141 "q": "%q", +142 "quarter": "%q", +143 "dayofyear": "%j", +144 "day": "%d", +145 "dy": "%d", +146 "y": "%Y", +147 "week": "%W", +148 "ww": "%W", +149 "wk": "%W", +150 "hour": "%h", +151 "hh": "%I", +152 "minute": "%M", +153 "mi": "%M", +154 "n": "%M", +155 "second": "%S", +156 "ss": "%S", +157 "s": "%-S", +158 "millisecond": "%f", +159 "ms": "%f", +160 "weekday": "%W", +161 "dw": "%W", +162 "month": "%m", +163 "mm": "%M", +164 "m": "%-M", +165 "Y": "%Y", +166 "YYYY": "%Y", +167 "YY": "%y", +168 "MMMM": "%B", +169 "MMM": "%b", +170 "MM": "%m", +171 "M": "%-m", +172 "dd": "%d", +173 "d": "%-d", +174 "HH": "%H", +175 "H": "%-H", +176 "h": "%-I", +177 "S": "%f", +178 "yyyy": "%Y", +179 "yy": "%y", +180 } +181 +182 convert_format_mapping = { +183 "0": "%b %d %Y %-I:%M%p", +184 "1": "%m/%d/%y", +185 "2": "%y.%m.%d", +186 "3": "%d/%m/%y", +187 "4": "%d.%m.%y", +188 "5": "%d-%m-%y", +189 "6": "%d %b %y", +190 "7": "%b %d, %y", +191 "8": "%H:%M:%S", +192 "9": "%b %d %Y %-I:%M:%S:%f%p", +193 "10": "mm-dd-yy", +194 "11": "yy/mm/dd", +195 "12": "yymmdd", +196 "13": "%d %b %Y %H:%M:ss:%f", +197 "14": "%H:%M:%S:%f", +198 "20": "%Y-%m-%d %H:%M:%S", +199 "21": "%Y-%m-%d %H:%M:%S.%f", +200 "22": "%m/%d/%y %-I:%M:%S %p", +201 "23": "%Y-%m-%d", +202 "24": "%H:%M:%S", +203 "25": "%Y-%m-%d %H:%M:%S.%f", +204 "100": "%b %d %Y %-I:%M%p", +205 "101": "%m/%d/%Y", +206 "102": "%Y.%m.%d", +207 "103": "%d/%m/%Y", +208 "104": "%d.%m.%Y", +209 "105": "%d-%m-%Y", +210 "106": "%d %b %Y", +211 "107": "%b %d, %Y", +212 "108": "%H:%M:%S", +213 "109": "%b %d %Y %-I:%M:%S:%f%p", +214 "110": "%m-%d-%Y", +215 "111": "%Y/%m/%d", +216 "112": "%Y%m%d", +217 "113": "%d %b %Y %H:%M:%S:%f", +218 "114": "%H:%M:%S:%f", +219 "120": "%Y-%m-%d %H:%M:%S", +220 "121": "%Y-%m-%d %H:%M:%S.%f", +221 } +222 # not sure if complete +223 format_time_mapping = { +224 "y": "%B %Y", +225 "d": "%m/%d/%Y", +226 "H": "%-H", +227 "h": "%-I", +228 "s": "%Y-%m-%d %H:%M:%S", +229 "D": "%A,%B,%Y", +230 "f": "%A,%B,%Y %-I:%M %p", +231 "F": "%A,%B,%Y %-I:%M:%S %p", +232 "g": "%m/%d/%Y %-I:%M %p", +233 "G": "%m/%d/%Y %-I:%M:%S %p", +234 "M": "%B %-d", +235 "m": "%B %-d", +236 "O": "%Y-%m-%dT%H:%M:%S", +237 "u": "%Y-%M-%D %H:%M:%S%z", +238 "U": "%A, %B %D, %Y %H:%M:%S%z", +239 "T": "%-I:%M:%S %p", +240 "t": "%-I:%M", +241 "Y": "%a %Y", +242 } 243 -244 KEYWORDS = { -245 **tokens.Tokenizer.KEYWORDS, -246 "BIT": TokenType.BOOLEAN, -247 "DATETIME2": TokenType.DATETIME, -248 "DATETIMEOFFSET": TokenType.TIMESTAMPTZ, -249 "DECLARE": TokenType.COMMAND, -250 "IMAGE": TokenType.IMAGE, -251 "MONEY": TokenType.MONEY, -252 "NTEXT": TokenType.TEXT, -253 "NVARCHAR(MAX)": TokenType.TEXT, -254 "PRINT": TokenType.COMMAND, -255 "PROC": TokenType.PROCEDURE, -256 "REAL": TokenType.FLOAT, -257 "ROWVERSION": TokenType.ROWVERSION, -258 "SMALLDATETIME": TokenType.DATETIME, -259 "SMALLMONEY": TokenType.SMALLMONEY, -260 "SQL_VARIANT": TokenType.VARIANT, -261 "TIME": TokenType.TIMESTAMP, -262 "TOP": TokenType.TOP, -263 "UNIQUEIDENTIFIER": TokenType.UNIQUEIDENTIFIER, -264 "VARCHAR(MAX)": TokenType.TEXT, -265 "XML": TokenType.XML, -266 } -267 -268 # TSQL allows @, # to appear as a variable/identifier prefix -269 SINGLE_TOKENS = tokens.Tokenizer.SINGLE_TOKENS.copy() -270 SINGLE_TOKENS.pop("@") -271 SINGLE_TOKENS.pop("#") +244 class Tokenizer(tokens.Tokenizer): +245 IDENTIFIERS = ['"', ("[", "]")] +246 +247 QUOTES = ["'", '"'] +248 +249 KEYWORDS = { +250 **tokens.Tokenizer.KEYWORDS, +251 "BIT": TokenType.BOOLEAN, +252 "DATETIME2": TokenType.DATETIME, +253 "DATETIMEOFFSET": TokenType.TIMESTAMPTZ, +254 "DECLARE": TokenType.COMMAND, +255 "IMAGE": TokenType.IMAGE, +256 "MONEY": TokenType.MONEY, +257 "NTEXT": TokenType.TEXT, +258 "NVARCHAR(MAX)": TokenType.TEXT, +259 "PRINT": TokenType.COMMAND, +260 "PROC": TokenType.PROCEDURE, +261 "REAL": TokenType.FLOAT, +262 "ROWVERSION": TokenType.ROWVERSION, +263 "SMALLDATETIME": TokenType.DATETIME, +264 "SMALLMONEY": TokenType.SMALLMONEY, +265 "SQL_VARIANT": TokenType.VARIANT, +266 "TIME": TokenType.TIMESTAMP, +267 "TOP": TokenType.TOP, +268 "UNIQUEIDENTIFIER": TokenType.UNIQUEIDENTIFIER, +269 "VARCHAR(MAX)": TokenType.TEXT, +270 "XML": TokenType.XML, +271 } 272 -273 class Parser(parser.Parser): -274 FUNCTIONS = { -275 **parser.Parser.FUNCTIONS, # type: ignore -276 "CHARINDEX": lambda args: exp.StrPosition( -277 this=seq_get(args, 1), -278 substr=seq_get(args, 0), -279 position=seq_get(args, 2), -280 ), -281 "ISNULL": exp.Coalesce.from_arg_list, -282 "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL), -283 "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL), -284 "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True), -285 "DATEPART": _format_time_lambda(exp.TimeToStr), -286 "GETDATE": exp.CurrentTimestamp.from_arg_list, -287 "SYSDATETIME": exp.CurrentTimestamp.from_arg_list, -288 "IIF": exp.If.from_arg_list, -289 "LEN": exp.Length.from_arg_list, -290 "REPLICATE": exp.Repeat.from_arg_list, -291 "JSON_VALUE": exp.JSONExtractScalar.from_arg_list, -292 "FORMAT": _parse_format, -293 "EOMONTH": _parse_eomonth, -294 } -295 -296 VAR_LENGTH_DATATYPES = { -297 DataType.Type.NVARCHAR, -298 DataType.Type.VARCHAR, -299 DataType.Type.CHAR, -300 DataType.Type.NCHAR, -301 } -302 -303 RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - { # type: ignore -304 TokenType.TABLE, -305 *parser.Parser.TYPE_TOKENS, # type: ignore +273 # TSQL allows @, # to appear as a variable/identifier prefix +274 SINGLE_TOKENS = tokens.Tokenizer.SINGLE_TOKENS.copy() +275 SINGLE_TOKENS.pop("@") +276 SINGLE_TOKENS.pop("#") +277 +278 class Parser(parser.Parser): +279 FUNCTIONS = { +280 **parser.Parser.FUNCTIONS, # type: ignore +281 "CHARINDEX": lambda args: exp.StrPosition( +282 this=seq_get(args, 1), +283 substr=seq_get(args, 0), +284 position=seq_get(args, 2), +285 ), +286 "ISNULL": exp.Coalesce.from_arg_list, +287 "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL), +288 "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL), +289 "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True), +290 "DATEPART": _format_time_lambda(exp.TimeToStr), +291 "GETDATE": exp.CurrentTimestamp.from_arg_list, +292 "SYSDATETIME": exp.CurrentTimestamp.from_arg_list, +293 "IIF": exp.If.from_arg_list, +294 "LEN": exp.Length.from_arg_list, +295 "REPLICATE": exp.Repeat.from_arg_list, +296 "JSON_VALUE": exp.JSONExtractScalar.from_arg_list, +297 "FORMAT": _parse_format, +298 "EOMONTH": _parse_eomonth, +299 } +300 +301 VAR_LENGTH_DATATYPES = { +302 DataType.Type.NVARCHAR, +303 DataType.Type.VARCHAR, +304 DataType.Type.CHAR, +305 DataType.Type.NCHAR, 306 } 307 -308 STATEMENT_PARSERS = { -309 **parser.Parser.STATEMENT_PARSERS, # type: ignore -310 TokenType.END: lambda self: self._parse_command(), +308 RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - { # type: ignore +309 TokenType.TABLE, +310 *parser.Parser.TYPE_TOKENS, # type: ignore 311 } 312 -313 def _parse_system_time(self) -> t.Optional[exp.Expression]: -314 if not self._match_text_seq("FOR", "SYSTEM_TIME"): -315 return None -316 -317 if self._match_text_seq("AS", "OF"): -318 system_time = self.expression( -319 exp.SystemTime, this=self._parse_bitwise(), kind="AS OF" -320 ) -321 elif self._match_set((TokenType.FROM, TokenType.BETWEEN)): -322 kind = self._prev.text -323 this = self._parse_bitwise() -324 self._match_texts(("TO", "AND")) -325 expression = self._parse_bitwise() -326 system_time = self.expression( -327 exp.SystemTime, this=this, expression=expression, kind=kind -328 ) -329 elif self._match_text_seq("CONTAINED", "IN"): -330 args = self._parse_wrapped_csv(self._parse_bitwise) +313 STATEMENT_PARSERS = { +314 **parser.Parser.STATEMENT_PARSERS, # type: ignore +315 TokenType.END: lambda self: self._parse_command(), +316 } +317 +318 def _parse_system_time(self) -> t.Optional[exp.Expression]: +319 if not self._match_text_seq("FOR", "SYSTEM_TIME"): +320 return None +321 +322 if self._match_text_seq("AS", "OF"): +323 system_time = self.expression( +324 exp.SystemTime, this=self._parse_bitwise(), kind="AS OF" +325 ) +326 elif self._match_set((TokenType.FROM, TokenType.BETWEEN)): +327 kind = self._prev.text +328 this = self._parse_bitwise() +329 self._match_texts(("TO", "AND")) +330 expression = self._parse_bitwise() 331 system_time = self.expression( -332 exp.SystemTime, -333 this=seq_get(args, 0), -334 expression=seq_get(args, 1), -335 kind="CONTAINED IN", -336 ) -337 elif self._match(TokenType.ALL): -338 system_time = self.expression(exp.SystemTime, kind="ALL") -339 else: -340 system_time = None -341 self.raise_error("Unable to parse FOR SYSTEM_TIME clause") -342 -343 return system_time -344 -345 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: -346 table = super()._parse_table_parts(schema=schema) -347 table.set("system_time", self._parse_system_time()) -348 return table +332 exp.SystemTime, this=this, expression=expression, kind=kind +333 ) +334 elif self._match_text_seq("CONTAINED", "IN"): +335 args = self._parse_wrapped_csv(self._parse_bitwise) +336 system_time = self.expression( +337 exp.SystemTime, +338 this=seq_get(args, 0), +339 expression=seq_get(args, 1), +340 kind="CONTAINED IN", +341 ) +342 elif self._match(TokenType.ALL): +343 system_time = self.expression(exp.SystemTime, kind="ALL") +344 else: +345 system_time = None +346 self.raise_error("Unable to parse FOR SYSTEM_TIME clause") +347 +348 return system_time 349 -350 def _parse_returns(self) -> exp.Expression: -351 table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS) -352 returns = super()._parse_returns() -353 returns.set("table", table) -354 return returns -355 -356 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: -357 to = self._parse_types() -358 self._match(TokenType.COMMA) -359 this = self._parse_conjunction() +350 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: +351 table = super()._parse_table_parts(schema=schema) +352 table.set("system_time", self._parse_system_time()) +353 return table +354 +355 def _parse_returns(self) -> exp.Expression: +356 table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS) +357 returns = super()._parse_returns() +358 returns.set("table", table) +359 return returns 360 -361 if not to or not this: -362 return None -363 -364 # Retrieve length of datatype and override to default if not specified -365 if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES: -366 to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False) -367 -368 # Check whether a conversion with format is applicable -369 if self._match(TokenType.COMMA): -370 format_val = self._parse_number() -371 format_val_name = format_val.name if format_val else "" +361 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: +362 to = self._parse_types() +363 self._match(TokenType.COMMA) +364 this = self._parse_conjunction() +365 +366 if not to or not this: +367 return None +368 +369 # Retrieve length of datatype and override to default if not specified +370 if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES: +371 to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False) 372 -373 if format_val_name not in TSQL.convert_format_mapping: -374 raise ValueError( -375 f"CONVERT function at T-SQL does not support format style {format_val_name}" -376 ) +373 # Check whether a conversion with format is applicable +374 if self._match(TokenType.COMMA): +375 format_val = self._parse_number() +376 format_val_name = format_val.name if format_val else "" 377 -378 format_norm = exp.Literal.string(TSQL.convert_format_mapping[format_val_name]) -379 -380 # Check whether the convert entails a string to date format -381 if to.this == DataType.Type.DATE: -382 return self.expression(exp.StrToDate, this=this, format=format_norm) -383 # Check whether the convert entails a string to datetime format -384 elif to.this == DataType.Type.DATETIME: -385 return self.expression(exp.StrToTime, this=this, format=format_norm) -386 # Check whether the convert entails a date to string format -387 elif to.this in self.VAR_LENGTH_DATATYPES: -388 return self.expression( -389 exp.Cast if strict else exp.TryCast, -390 to=to, -391 this=self.expression(exp.TimeToStr, this=this, format=format_norm), -392 ) -393 elif to.this == DataType.Type.TEXT: -394 return self.expression(exp.TimeToStr, this=this, format=format_norm) -395 -396 # Entails a simple cast without any format requirement -397 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) -398 -399 def _parse_user_defined_function( -400 self, kind: t.Optional[TokenType] = None -401 ) -> t.Optional[exp.Expression]: -402 this = super()._parse_user_defined_function(kind=kind) +378 if format_val_name not in TSQL.convert_format_mapping: +379 raise ValueError( +380 f"CONVERT function at T-SQL does not support format style {format_val_name}" +381 ) +382 +383 format_norm = exp.Literal.string(TSQL.convert_format_mapping[format_val_name]) +384 +385 # Check whether the convert entails a string to date format +386 if to.this == DataType.Type.DATE: +387 return self.expression(exp.StrToDate, this=this, format=format_norm) +388 # Check whether the convert entails a string to datetime format +389 elif to.this == DataType.Type.DATETIME: +390 return self.expression(exp.StrToTime, this=this, format=format_norm) +391 # Check whether the convert entails a date to string format +392 elif to.this in self.VAR_LENGTH_DATATYPES: +393 return self.expression( +394 exp.Cast if strict else exp.TryCast, +395 to=to, +396 this=self.expression(exp.TimeToStr, this=this, format=format_norm), +397 ) +398 elif to.this == DataType.Type.TEXT: +399 return self.expression(exp.TimeToStr, this=this, format=format_norm) +400 +401 # Entails a simple cast without any format requirement +402 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) 403 -404 if ( -405 kind == TokenType.FUNCTION -406 or isinstance(this, exp.UserDefinedFunction) -407 or self._match(TokenType.ALIAS, advance=False) -408 ): -409 return this -410 -411 expressions = self._parse_csv(self._parse_function_parameter) -412 return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions) -413 -414 class Generator(generator.Generator): -415 LOCKING_READS_SUPPORTED = True -416 -417 TYPE_MAPPING = { -418 **generator.Generator.TYPE_MAPPING, # type: ignore -419 exp.DataType.Type.BOOLEAN: "BIT", -420 exp.DataType.Type.INT: "INTEGER", -421 exp.DataType.Type.DECIMAL: "NUMERIC", -422 exp.DataType.Type.DATETIME: "DATETIME2", -423 exp.DataType.Type.VARIANT: "SQL_VARIANT", -424 } -425 -426 TRANSFORMS = { -427 **generator.Generator.TRANSFORMS, # type: ignore -428 exp.DateAdd: generate_date_delta_with_unit_sql, -429 exp.DateDiff: generate_date_delta_with_unit_sql, -430 exp.CurrentDate: rename_func("GETDATE"), -431 exp.CurrentTimestamp: rename_func("GETDATE"), -432 exp.If: rename_func("IIF"), -433 exp.NumberToStr: _format_sql, -434 exp.TimeToStr: _format_sql, -435 exp.GroupConcat: _string_agg_sql, -436 } -437 -438 TRANSFORMS.pop(exp.ReturnsProperty) -439 -440 def systemtime_sql(self, expression: exp.SystemTime) -> str: -441 kind = expression.args["kind"] -442 if kind == "ALL": -443 return "FOR SYSTEM_TIME ALL" -444 -445 start = self.sql(expression, "this") -446 if kind == "AS OF": -447 return f"FOR SYSTEM_TIME AS OF {start}" -448 -449 end = self.sql(expression, "expression") -450 if kind == "FROM": -451 return f"FOR SYSTEM_TIME FROM {start} TO {end}" -452 if kind == "BETWEEN": -453 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" +404 def _parse_user_defined_function( +405 self, kind: t.Optional[TokenType] = None +406 ) -> t.Optional[exp.Expression]: +407 this = super()._parse_user_defined_function(kind=kind) +408 +409 if ( +410 kind == TokenType.FUNCTION +411 or isinstance(this, exp.UserDefinedFunction) +412 or self._match(TokenType.ALIAS, advance=False) +413 ): +414 return this +415 +416 expressions = self._parse_csv(self._parse_function_parameter) +417 return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions) +418 +419 class Generator(generator.Generator): +420 LOCKING_READS_SUPPORTED = True +421 +422 TYPE_MAPPING = { +423 **generator.Generator.TYPE_MAPPING, # type: ignore +424 exp.DataType.Type.BOOLEAN: "BIT", +425 exp.DataType.Type.INT: "INTEGER", +426 exp.DataType.Type.DECIMAL: "NUMERIC", +427 exp.DataType.Type.DATETIME: "DATETIME2", +428 exp.DataType.Type.VARIANT: "SQL_VARIANT", +429 } +430 +431 TRANSFORMS = { +432 **generator.Generator.TRANSFORMS, # type: ignore +433 exp.DateAdd: generate_date_delta_with_unit_sql, +434 exp.DateDiff: generate_date_delta_with_unit_sql, +435 exp.CurrentDate: rename_func("GETDATE"), +436 exp.CurrentTimestamp: rename_func("GETDATE"), +437 exp.If: rename_func("IIF"), +438 exp.NumberToStr: _format_sql, +439 exp.TimeToStr: _format_sql, +440 exp.GroupConcat: _string_agg_sql, +441 exp.Min: min_or_least, +442 } +443 +444 TRANSFORMS.pop(exp.ReturnsProperty) +445 +446 def systemtime_sql(self, expression: exp.SystemTime) -> str: +447 kind = expression.args["kind"] +448 if kind == "ALL": +449 return "FOR SYSTEM_TIME ALL" +450 +451 start = self.sql(expression, "this") +452 if kind == "AS OF": +453 return f"FOR SYSTEM_TIME AS OF {start}" 454 -455 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" -456 -457 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: -458 table = expression.args.get("table") -459 table = f"{table} " if table else "" -460 return f"RETURNS {table}{self.sql(expression, 'this')}" +455 end = self.sql(expression, "expression") +456 if kind == "FROM": +457 return f"FOR SYSTEM_TIME FROM {start} TO {end}" +458 if kind == "BETWEEN": +459 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" +460 +461 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" +462 +463 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: +464 table = expression.args.get("table") +465 table = f"{table} " if table else "" +466 return f"RETURNS {table}{self.sql(expression, 'this')}"
    @@ -561,9 +567,9 @@ -
    94def generate_date_delta_with_unit_sql(self, e):
    -95    func = "DATEADD" if isinstance(e, exp.DateAdd) else "DATEDIFF"
    -96    return self.func(func, e.text("unit"), e.expression, e.this)
    +            
     99def generate_date_delta_with_unit_sql(self, e):
    +100    func = "DATEADD" if isinstance(e, exp.DateAdd) else "DATEDIFF"
    +101    return self.func(func, e.text("unit"), e.expression, e.this)
     
    @@ -581,338 +587,339 @@
    -
    130class TSQL(Dialect):
    -131    null_ordering = "nulls_are_small"
    -132    time_format = "'yyyy-mm-dd hh:mm:ss'"
    -133
    -134    time_mapping = {
    -135        "year": "%Y",
    -136        "qq": "%q",
    -137        "q": "%q",
    -138        "quarter": "%q",
    -139        "dayofyear": "%j",
    -140        "day": "%d",
    -141        "dy": "%d",
    -142        "y": "%Y",
    -143        "week": "%W",
    -144        "ww": "%W",
    -145        "wk": "%W",
    -146        "hour": "%h",
    -147        "hh": "%I",
    -148        "minute": "%M",
    -149        "mi": "%M",
    -150        "n": "%M",
    -151        "second": "%S",
    -152        "ss": "%S",
    -153        "s": "%-S",
    -154        "millisecond": "%f",
    -155        "ms": "%f",
    -156        "weekday": "%W",
    -157        "dw": "%W",
    -158        "month": "%m",
    -159        "mm": "%M",
    -160        "m": "%-M",
    -161        "Y": "%Y",
    -162        "YYYY": "%Y",
    -163        "YY": "%y",
    -164        "MMMM": "%B",
    -165        "MMM": "%b",
    -166        "MM": "%m",
    -167        "M": "%-m",
    -168        "dd": "%d",
    -169        "d": "%-d",
    -170        "HH": "%H",
    -171        "H": "%-H",
    -172        "h": "%-I",
    -173        "S": "%f",
    -174        "yyyy": "%Y",
    -175        "yy": "%y",
    -176    }
    -177
    -178    convert_format_mapping = {
    -179        "0": "%b %d %Y %-I:%M%p",
    -180        "1": "%m/%d/%y",
    -181        "2": "%y.%m.%d",
    -182        "3": "%d/%m/%y",
    -183        "4": "%d.%m.%y",
    -184        "5": "%d-%m-%y",
    -185        "6": "%d %b %y",
    -186        "7": "%b %d, %y",
    -187        "8": "%H:%M:%S",
    -188        "9": "%b %d %Y %-I:%M:%S:%f%p",
    -189        "10": "mm-dd-yy",
    -190        "11": "yy/mm/dd",
    -191        "12": "yymmdd",
    -192        "13": "%d %b %Y %H:%M:ss:%f",
    -193        "14": "%H:%M:%S:%f",
    -194        "20": "%Y-%m-%d %H:%M:%S",
    -195        "21": "%Y-%m-%d %H:%M:%S.%f",
    -196        "22": "%m/%d/%y %-I:%M:%S %p",
    -197        "23": "%Y-%m-%d",
    -198        "24": "%H:%M:%S",
    -199        "25": "%Y-%m-%d %H:%M:%S.%f",
    -200        "100": "%b %d %Y %-I:%M%p",
    -201        "101": "%m/%d/%Y",
    -202        "102": "%Y.%m.%d",
    -203        "103": "%d/%m/%Y",
    -204        "104": "%d.%m.%Y",
    -205        "105": "%d-%m-%Y",
    -206        "106": "%d %b %Y",
    -207        "107": "%b %d, %Y",
    -208        "108": "%H:%M:%S",
    -209        "109": "%b %d %Y %-I:%M:%S:%f%p",
    -210        "110": "%m-%d-%Y",
    -211        "111": "%Y/%m/%d",
    -212        "112": "%Y%m%d",
    -213        "113": "%d %b %Y %H:%M:%S:%f",
    -214        "114": "%H:%M:%S:%f",
    -215        "120": "%Y-%m-%d %H:%M:%S",
    -216        "121": "%Y-%m-%d %H:%M:%S.%f",
    -217    }
    -218    # not sure if complete
    -219    format_time_mapping = {
    -220        "y": "%B %Y",
    -221        "d": "%m/%d/%Y",
    -222        "H": "%-H",
    -223        "h": "%-I",
    -224        "s": "%Y-%m-%d %H:%M:%S",
    -225        "D": "%A,%B,%Y",
    -226        "f": "%A,%B,%Y %-I:%M %p",
    -227        "F": "%A,%B,%Y %-I:%M:%S %p",
    -228        "g": "%m/%d/%Y %-I:%M %p",
    -229        "G": "%m/%d/%Y %-I:%M:%S %p",
    -230        "M": "%B %-d",
    -231        "m": "%B %-d",
    -232        "O": "%Y-%m-%dT%H:%M:%S",
    -233        "u": "%Y-%M-%D %H:%M:%S%z",
    -234        "U": "%A, %B %D, %Y %H:%M:%S%z",
    -235        "T": "%-I:%M:%S %p",
    -236        "t": "%-I:%M",
    -237        "Y": "%a %Y",
    -238    }
    -239
    -240    class Tokenizer(tokens.Tokenizer):
    -241        IDENTIFIERS = ['"', ("[", "]")]
    -242
    -243        QUOTES = ["'", '"']
    +            
    135class TSQL(Dialect):
    +136    null_ordering = "nulls_are_small"
    +137    time_format = "'yyyy-mm-dd hh:mm:ss'"
    +138
    +139    time_mapping = {
    +140        "year": "%Y",
    +141        "qq": "%q",
    +142        "q": "%q",
    +143        "quarter": "%q",
    +144        "dayofyear": "%j",
    +145        "day": "%d",
    +146        "dy": "%d",
    +147        "y": "%Y",
    +148        "week": "%W",
    +149        "ww": "%W",
    +150        "wk": "%W",
    +151        "hour": "%h",
    +152        "hh": "%I",
    +153        "minute": "%M",
    +154        "mi": "%M",
    +155        "n": "%M",
    +156        "second": "%S",
    +157        "ss": "%S",
    +158        "s": "%-S",
    +159        "millisecond": "%f",
    +160        "ms": "%f",
    +161        "weekday": "%W",
    +162        "dw": "%W",
    +163        "month": "%m",
    +164        "mm": "%M",
    +165        "m": "%-M",
    +166        "Y": "%Y",
    +167        "YYYY": "%Y",
    +168        "YY": "%y",
    +169        "MMMM": "%B",
    +170        "MMM": "%b",
    +171        "MM": "%m",
    +172        "M": "%-m",
    +173        "dd": "%d",
    +174        "d": "%-d",
    +175        "HH": "%H",
    +176        "H": "%-H",
    +177        "h": "%-I",
    +178        "S": "%f",
    +179        "yyyy": "%Y",
    +180        "yy": "%y",
    +181    }
    +182
    +183    convert_format_mapping = {
    +184        "0": "%b %d %Y %-I:%M%p",
    +185        "1": "%m/%d/%y",
    +186        "2": "%y.%m.%d",
    +187        "3": "%d/%m/%y",
    +188        "4": "%d.%m.%y",
    +189        "5": "%d-%m-%y",
    +190        "6": "%d %b %y",
    +191        "7": "%b %d, %y",
    +192        "8": "%H:%M:%S",
    +193        "9": "%b %d %Y %-I:%M:%S:%f%p",
    +194        "10": "mm-dd-yy",
    +195        "11": "yy/mm/dd",
    +196        "12": "yymmdd",
    +197        "13": "%d %b %Y %H:%M:ss:%f",
    +198        "14": "%H:%M:%S:%f",
    +199        "20": "%Y-%m-%d %H:%M:%S",
    +200        "21": "%Y-%m-%d %H:%M:%S.%f",
    +201        "22": "%m/%d/%y %-I:%M:%S %p",
    +202        "23": "%Y-%m-%d",
    +203        "24": "%H:%M:%S",
    +204        "25": "%Y-%m-%d %H:%M:%S.%f",
    +205        "100": "%b %d %Y %-I:%M%p",
    +206        "101": "%m/%d/%Y",
    +207        "102": "%Y.%m.%d",
    +208        "103": "%d/%m/%Y",
    +209        "104": "%d.%m.%Y",
    +210        "105": "%d-%m-%Y",
    +211        "106": "%d %b %Y",
    +212        "107": "%b %d, %Y",
    +213        "108": "%H:%M:%S",
    +214        "109": "%b %d %Y %-I:%M:%S:%f%p",
    +215        "110": "%m-%d-%Y",
    +216        "111": "%Y/%m/%d",
    +217        "112": "%Y%m%d",
    +218        "113": "%d %b %Y %H:%M:%S:%f",
    +219        "114": "%H:%M:%S:%f",
    +220        "120": "%Y-%m-%d %H:%M:%S",
    +221        "121": "%Y-%m-%d %H:%M:%S.%f",
    +222    }
    +223    # not sure if complete
    +224    format_time_mapping = {
    +225        "y": "%B %Y",
    +226        "d": "%m/%d/%Y",
    +227        "H": "%-H",
    +228        "h": "%-I",
    +229        "s": "%Y-%m-%d %H:%M:%S",
    +230        "D": "%A,%B,%Y",
    +231        "f": "%A,%B,%Y %-I:%M %p",
    +232        "F": "%A,%B,%Y %-I:%M:%S %p",
    +233        "g": "%m/%d/%Y %-I:%M %p",
    +234        "G": "%m/%d/%Y %-I:%M:%S %p",
    +235        "M": "%B %-d",
    +236        "m": "%B %-d",
    +237        "O": "%Y-%m-%dT%H:%M:%S",
    +238        "u": "%Y-%M-%D %H:%M:%S%z",
    +239        "U": "%A, %B %D, %Y %H:%M:%S%z",
    +240        "T": "%-I:%M:%S %p",
    +241        "t": "%-I:%M",
    +242        "Y": "%a %Y",
    +243    }
     244
    -245        KEYWORDS = {
    -246            **tokens.Tokenizer.KEYWORDS,
    -247            "BIT": TokenType.BOOLEAN,
    -248            "DATETIME2": TokenType.DATETIME,
    -249            "DATETIMEOFFSET": TokenType.TIMESTAMPTZ,
    -250            "DECLARE": TokenType.COMMAND,
    -251            "IMAGE": TokenType.IMAGE,
    -252            "MONEY": TokenType.MONEY,
    -253            "NTEXT": TokenType.TEXT,
    -254            "NVARCHAR(MAX)": TokenType.TEXT,
    -255            "PRINT": TokenType.COMMAND,
    -256            "PROC": TokenType.PROCEDURE,
    -257            "REAL": TokenType.FLOAT,
    -258            "ROWVERSION": TokenType.ROWVERSION,
    -259            "SMALLDATETIME": TokenType.DATETIME,
    -260            "SMALLMONEY": TokenType.SMALLMONEY,
    -261            "SQL_VARIANT": TokenType.VARIANT,
    -262            "TIME": TokenType.TIMESTAMP,
    -263            "TOP": TokenType.TOP,
    -264            "UNIQUEIDENTIFIER": TokenType.UNIQUEIDENTIFIER,
    -265            "VARCHAR(MAX)": TokenType.TEXT,
    -266            "XML": TokenType.XML,
    -267        }
    -268
    -269        # TSQL allows @, # to appear as a variable/identifier prefix
    -270        SINGLE_TOKENS = tokens.Tokenizer.SINGLE_TOKENS.copy()
    -271        SINGLE_TOKENS.pop("@")
    -272        SINGLE_TOKENS.pop("#")
    +245    class Tokenizer(tokens.Tokenizer):
    +246        IDENTIFIERS = ['"', ("[", "]")]
    +247
    +248        QUOTES = ["'", '"']
    +249
    +250        KEYWORDS = {
    +251            **tokens.Tokenizer.KEYWORDS,
    +252            "BIT": TokenType.BOOLEAN,
    +253            "DATETIME2": TokenType.DATETIME,
    +254            "DATETIMEOFFSET": TokenType.TIMESTAMPTZ,
    +255            "DECLARE": TokenType.COMMAND,
    +256            "IMAGE": TokenType.IMAGE,
    +257            "MONEY": TokenType.MONEY,
    +258            "NTEXT": TokenType.TEXT,
    +259            "NVARCHAR(MAX)": TokenType.TEXT,
    +260            "PRINT": TokenType.COMMAND,
    +261            "PROC": TokenType.PROCEDURE,
    +262            "REAL": TokenType.FLOAT,
    +263            "ROWVERSION": TokenType.ROWVERSION,
    +264            "SMALLDATETIME": TokenType.DATETIME,
    +265            "SMALLMONEY": TokenType.SMALLMONEY,
    +266            "SQL_VARIANT": TokenType.VARIANT,
    +267            "TIME": TokenType.TIMESTAMP,
    +268            "TOP": TokenType.TOP,
    +269            "UNIQUEIDENTIFIER": TokenType.UNIQUEIDENTIFIER,
    +270            "VARCHAR(MAX)": TokenType.TEXT,
    +271            "XML": TokenType.XML,
    +272        }
     273
    -274    class Parser(parser.Parser):
    -275        FUNCTIONS = {
    -276            **parser.Parser.FUNCTIONS,  # type: ignore
    -277            "CHARINDEX": lambda args: exp.StrPosition(
    -278                this=seq_get(args, 1),
    -279                substr=seq_get(args, 0),
    -280                position=seq_get(args, 2),
    -281            ),
    -282            "ISNULL": exp.Coalesce.from_arg_list,
    -283            "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL),
    -284            "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL),
    -285            "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True),
    -286            "DATEPART": _format_time_lambda(exp.TimeToStr),
    -287            "GETDATE": exp.CurrentTimestamp.from_arg_list,
    -288            "SYSDATETIME": exp.CurrentTimestamp.from_arg_list,
    -289            "IIF": exp.If.from_arg_list,
    -290            "LEN": exp.Length.from_arg_list,
    -291            "REPLICATE": exp.Repeat.from_arg_list,
    -292            "JSON_VALUE": exp.JSONExtractScalar.from_arg_list,
    -293            "FORMAT": _parse_format,
    -294            "EOMONTH": _parse_eomonth,
    -295        }
    -296
    -297        VAR_LENGTH_DATATYPES = {
    -298            DataType.Type.NVARCHAR,
    -299            DataType.Type.VARCHAR,
    -300            DataType.Type.CHAR,
    -301            DataType.Type.NCHAR,
    -302        }
    -303
    -304        RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - {  # type: ignore
    -305            TokenType.TABLE,
    -306            *parser.Parser.TYPE_TOKENS,  # type: ignore
    +274        # TSQL allows @, # to appear as a variable/identifier prefix
    +275        SINGLE_TOKENS = tokens.Tokenizer.SINGLE_TOKENS.copy()
    +276        SINGLE_TOKENS.pop("@")
    +277        SINGLE_TOKENS.pop("#")
    +278
    +279    class Parser(parser.Parser):
    +280        FUNCTIONS = {
    +281            **parser.Parser.FUNCTIONS,  # type: ignore
    +282            "CHARINDEX": lambda args: exp.StrPosition(
    +283                this=seq_get(args, 1),
    +284                substr=seq_get(args, 0),
    +285                position=seq_get(args, 2),
    +286            ),
    +287            "ISNULL": exp.Coalesce.from_arg_list,
    +288            "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL),
    +289            "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL),
    +290            "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True),
    +291            "DATEPART": _format_time_lambda(exp.TimeToStr),
    +292            "GETDATE": exp.CurrentTimestamp.from_arg_list,
    +293            "SYSDATETIME": exp.CurrentTimestamp.from_arg_list,
    +294            "IIF": exp.If.from_arg_list,
    +295            "LEN": exp.Length.from_arg_list,
    +296            "REPLICATE": exp.Repeat.from_arg_list,
    +297            "JSON_VALUE": exp.JSONExtractScalar.from_arg_list,
    +298            "FORMAT": _parse_format,
    +299            "EOMONTH": _parse_eomonth,
    +300        }
    +301
    +302        VAR_LENGTH_DATATYPES = {
    +303            DataType.Type.NVARCHAR,
    +304            DataType.Type.VARCHAR,
    +305            DataType.Type.CHAR,
    +306            DataType.Type.NCHAR,
     307        }
     308
    -309        STATEMENT_PARSERS = {
    -310            **parser.Parser.STATEMENT_PARSERS,  # type: ignore
    -311            TokenType.END: lambda self: self._parse_command(),
    +309        RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - {  # type: ignore
    +310            TokenType.TABLE,
    +311            *parser.Parser.TYPE_TOKENS,  # type: ignore
     312        }
     313
    -314        def _parse_system_time(self) -> t.Optional[exp.Expression]:
    -315            if not self._match_text_seq("FOR", "SYSTEM_TIME"):
    -316                return None
    -317
    -318            if self._match_text_seq("AS", "OF"):
    -319                system_time = self.expression(
    -320                    exp.SystemTime, this=self._parse_bitwise(), kind="AS OF"
    -321                )
    -322            elif self._match_set((TokenType.FROM, TokenType.BETWEEN)):
    -323                kind = self._prev.text
    -324                this = self._parse_bitwise()
    -325                self._match_texts(("TO", "AND"))
    -326                expression = self._parse_bitwise()
    -327                system_time = self.expression(
    -328                    exp.SystemTime, this=this, expression=expression, kind=kind
    -329                )
    -330            elif self._match_text_seq("CONTAINED", "IN"):
    -331                args = self._parse_wrapped_csv(self._parse_bitwise)
    +314        STATEMENT_PARSERS = {
    +315            **parser.Parser.STATEMENT_PARSERS,  # type: ignore
    +316            TokenType.END: lambda self: self._parse_command(),
    +317        }
    +318
    +319        def _parse_system_time(self) -> t.Optional[exp.Expression]:
    +320            if not self._match_text_seq("FOR", "SYSTEM_TIME"):
    +321                return None
    +322
    +323            if self._match_text_seq("AS", "OF"):
    +324                system_time = self.expression(
    +325                    exp.SystemTime, this=self._parse_bitwise(), kind="AS OF"
    +326                )
    +327            elif self._match_set((TokenType.FROM, TokenType.BETWEEN)):
    +328                kind = self._prev.text
    +329                this = self._parse_bitwise()
    +330                self._match_texts(("TO", "AND"))
    +331                expression = self._parse_bitwise()
     332                system_time = self.expression(
    -333                    exp.SystemTime,
    -334                    this=seq_get(args, 0),
    -335                    expression=seq_get(args, 1),
    -336                    kind="CONTAINED IN",
    -337                )
    -338            elif self._match(TokenType.ALL):
    -339                system_time = self.expression(exp.SystemTime, kind="ALL")
    -340            else:
    -341                system_time = None
    -342                self.raise_error("Unable to parse FOR SYSTEM_TIME clause")
    -343
    -344            return system_time
    -345
    -346        def _parse_table_parts(self, schema: bool = False) -> exp.Expression:
    -347            table = super()._parse_table_parts(schema=schema)
    -348            table.set("system_time", self._parse_system_time())
    -349            return table
    +333                    exp.SystemTime, this=this, expression=expression, kind=kind
    +334                )
    +335            elif self._match_text_seq("CONTAINED", "IN"):
    +336                args = self._parse_wrapped_csv(self._parse_bitwise)
    +337                system_time = self.expression(
    +338                    exp.SystemTime,
    +339                    this=seq_get(args, 0),
    +340                    expression=seq_get(args, 1),
    +341                    kind="CONTAINED IN",
    +342                )
    +343            elif self._match(TokenType.ALL):
    +344                system_time = self.expression(exp.SystemTime, kind="ALL")
    +345            else:
    +346                system_time = None
    +347                self.raise_error("Unable to parse FOR SYSTEM_TIME clause")
    +348
    +349            return system_time
     350
    -351        def _parse_returns(self) -> exp.Expression:
    -352            table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS)
    -353            returns = super()._parse_returns()
    -354            returns.set("table", table)
    -355            return returns
    -356
    -357        def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]:
    -358            to = self._parse_types()
    -359            self._match(TokenType.COMMA)
    -360            this = self._parse_conjunction()
    +351        def _parse_table_parts(self, schema: bool = False) -> exp.Expression:
    +352            table = super()._parse_table_parts(schema=schema)
    +353            table.set("system_time", self._parse_system_time())
    +354            return table
    +355
    +356        def _parse_returns(self) -> exp.Expression:
    +357            table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS)
    +358            returns = super()._parse_returns()
    +359            returns.set("table", table)
    +360            return returns
     361
    -362            if not to or not this:
    -363                return None
    -364
    -365            # Retrieve length of datatype and override to default if not specified
    -366            if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES:
    -367                to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False)
    -368
    -369            # Check whether a conversion with format is applicable
    -370            if self._match(TokenType.COMMA):
    -371                format_val = self._parse_number()
    -372                format_val_name = format_val.name if format_val else ""
    +362        def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]:
    +363            to = self._parse_types()
    +364            self._match(TokenType.COMMA)
    +365            this = self._parse_conjunction()
    +366
    +367            if not to or not this:
    +368                return None
    +369
    +370            # Retrieve length of datatype and override to default if not specified
    +371            if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES:
    +372                to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False)
     373
    -374                if format_val_name not in TSQL.convert_format_mapping:
    -375                    raise ValueError(
    -376                        f"CONVERT function at T-SQL does not support format style {format_val_name}"
    -377                    )
    +374            # Check whether a conversion with format is applicable
    +375            if self._match(TokenType.COMMA):
    +376                format_val = self._parse_number()
    +377                format_val_name = format_val.name if format_val else ""
     378
    -379                format_norm = exp.Literal.string(TSQL.convert_format_mapping[format_val_name])
    -380
    -381                # Check whether the convert entails a string to date format
    -382                if to.this == DataType.Type.DATE:
    -383                    return self.expression(exp.StrToDate, this=this, format=format_norm)
    -384                # Check whether the convert entails a string to datetime format
    -385                elif to.this == DataType.Type.DATETIME:
    -386                    return self.expression(exp.StrToTime, this=this, format=format_norm)
    -387                # Check whether the convert entails a date to string format
    -388                elif to.this in self.VAR_LENGTH_DATATYPES:
    -389                    return self.expression(
    -390                        exp.Cast if strict else exp.TryCast,
    -391                        to=to,
    -392                        this=self.expression(exp.TimeToStr, this=this, format=format_norm),
    -393                    )
    -394                elif to.this == DataType.Type.TEXT:
    -395                    return self.expression(exp.TimeToStr, this=this, format=format_norm)
    -396
    -397            # Entails a simple cast without any format requirement
    -398            return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
    -399
    -400        def _parse_user_defined_function(
    -401            self, kind: t.Optional[TokenType] = None
    -402        ) -> t.Optional[exp.Expression]:
    -403            this = super()._parse_user_defined_function(kind=kind)
    +379                if format_val_name not in TSQL.convert_format_mapping:
    +380                    raise ValueError(
    +381                        f"CONVERT function at T-SQL does not support format style {format_val_name}"
    +382                    )
    +383
    +384                format_norm = exp.Literal.string(TSQL.convert_format_mapping[format_val_name])
    +385
    +386                # Check whether the convert entails a string to date format
    +387                if to.this == DataType.Type.DATE:
    +388                    return self.expression(exp.StrToDate, this=this, format=format_norm)
    +389                # Check whether the convert entails a string to datetime format
    +390                elif to.this == DataType.Type.DATETIME:
    +391                    return self.expression(exp.StrToTime, this=this, format=format_norm)
    +392                # Check whether the convert entails a date to string format
    +393                elif to.this in self.VAR_LENGTH_DATATYPES:
    +394                    return self.expression(
    +395                        exp.Cast if strict else exp.TryCast,
    +396                        to=to,
    +397                        this=self.expression(exp.TimeToStr, this=this, format=format_norm),
    +398                    )
    +399                elif to.this == DataType.Type.TEXT:
    +400                    return self.expression(exp.TimeToStr, this=this, format=format_norm)
    +401
    +402            # Entails a simple cast without any format requirement
    +403            return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
     404
    -405            if (
    -406                kind == TokenType.FUNCTION
    -407                or isinstance(this, exp.UserDefinedFunction)
    -408                or self._match(TokenType.ALIAS, advance=False)
    -409            ):
    -410                return this
    -411
    -412            expressions = self._parse_csv(self._parse_function_parameter)
    -413            return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions)
    -414
    -415    class Generator(generator.Generator):
    -416        LOCKING_READS_SUPPORTED = True
    -417
    -418        TYPE_MAPPING = {
    -419            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -420            exp.DataType.Type.BOOLEAN: "BIT",
    -421            exp.DataType.Type.INT: "INTEGER",
    -422            exp.DataType.Type.DECIMAL: "NUMERIC",
    -423            exp.DataType.Type.DATETIME: "DATETIME2",
    -424            exp.DataType.Type.VARIANT: "SQL_VARIANT",
    -425        }
    -426
    -427        TRANSFORMS = {
    -428            **generator.Generator.TRANSFORMS,  # type: ignore
    -429            exp.DateAdd: generate_date_delta_with_unit_sql,
    -430            exp.DateDiff: generate_date_delta_with_unit_sql,
    -431            exp.CurrentDate: rename_func("GETDATE"),
    -432            exp.CurrentTimestamp: rename_func("GETDATE"),
    -433            exp.If: rename_func("IIF"),
    -434            exp.NumberToStr: _format_sql,
    -435            exp.TimeToStr: _format_sql,
    -436            exp.GroupConcat: _string_agg_sql,
    -437        }
    -438
    -439        TRANSFORMS.pop(exp.ReturnsProperty)
    -440
    -441        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    -442            kind = expression.args["kind"]
    -443            if kind == "ALL":
    -444                return "FOR SYSTEM_TIME ALL"
    -445
    -446            start = self.sql(expression, "this")
    -447            if kind == "AS OF":
    -448                return f"FOR SYSTEM_TIME AS OF {start}"
    -449
    -450            end = self.sql(expression, "expression")
    -451            if kind == "FROM":
    -452                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    -453            if kind == "BETWEEN":
    -454                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +405        def _parse_user_defined_function(
    +406            self, kind: t.Optional[TokenType] = None
    +407        ) -> t.Optional[exp.Expression]:
    +408            this = super()._parse_user_defined_function(kind=kind)
    +409
    +410            if (
    +411                kind == TokenType.FUNCTION
    +412                or isinstance(this, exp.UserDefinedFunction)
    +413                or self._match(TokenType.ALIAS, advance=False)
    +414            ):
    +415                return this
    +416
    +417            expressions = self._parse_csv(self._parse_function_parameter)
    +418            return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions)
    +419
    +420    class Generator(generator.Generator):
    +421        LOCKING_READS_SUPPORTED = True
    +422
    +423        TYPE_MAPPING = {
    +424            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +425            exp.DataType.Type.BOOLEAN: "BIT",
    +426            exp.DataType.Type.INT: "INTEGER",
    +427            exp.DataType.Type.DECIMAL: "NUMERIC",
    +428            exp.DataType.Type.DATETIME: "DATETIME2",
    +429            exp.DataType.Type.VARIANT: "SQL_VARIANT",
    +430        }
    +431
    +432        TRANSFORMS = {
    +433            **generator.Generator.TRANSFORMS,  # type: ignore
    +434            exp.DateAdd: generate_date_delta_with_unit_sql,
    +435            exp.DateDiff: generate_date_delta_with_unit_sql,
    +436            exp.CurrentDate: rename_func("GETDATE"),
    +437            exp.CurrentTimestamp: rename_func("GETDATE"),
    +438            exp.If: rename_func("IIF"),
    +439            exp.NumberToStr: _format_sql,
    +440            exp.TimeToStr: _format_sql,
    +441            exp.GroupConcat: _string_agg_sql,
    +442            exp.Min: min_or_least,
    +443        }
    +444
    +445        TRANSFORMS.pop(exp.ReturnsProperty)
    +446
    +447        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    +448            kind = expression.args["kind"]
    +449            if kind == "ALL":
    +450                return "FOR SYSTEM_TIME ALL"
    +451
    +452            start = self.sql(expression, "this")
    +453            if kind == "AS OF":
    +454                return f"FOR SYSTEM_TIME AS OF {start}"
     455
    -456            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
    -457
    -458        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    -459            table = expression.args.get("table")
    -460            table = f"{table} " if table else ""
    -461            return f"RETURNS {table}{self.sql(expression, 'this')}"
    +456            end = self.sql(expression, "expression")
    +457            if kind == "FROM":
    +458                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    +459            if kind == "BETWEEN":
    +460                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +461
    +462            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
    +463
    +464        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    +465            table = expression.args.get("table")
    +466            table = f"{table} " if table else ""
    +467            return f"RETURNS {table}{self.sql(expression, 'this')}"
     
    @@ -946,39 +953,39 @@
    -
    240    class Tokenizer(tokens.Tokenizer):
    -241        IDENTIFIERS = ['"', ("[", "]")]
    -242
    -243        QUOTES = ["'", '"']
    -244
    -245        KEYWORDS = {
    -246            **tokens.Tokenizer.KEYWORDS,
    -247            "BIT": TokenType.BOOLEAN,
    -248            "DATETIME2": TokenType.DATETIME,
    -249            "DATETIMEOFFSET": TokenType.TIMESTAMPTZ,
    -250            "DECLARE": TokenType.COMMAND,
    -251            "IMAGE": TokenType.IMAGE,
    -252            "MONEY": TokenType.MONEY,
    -253            "NTEXT": TokenType.TEXT,
    -254            "NVARCHAR(MAX)": TokenType.TEXT,
    -255            "PRINT": TokenType.COMMAND,
    -256            "PROC": TokenType.PROCEDURE,
    -257            "REAL": TokenType.FLOAT,
    -258            "ROWVERSION": TokenType.ROWVERSION,
    -259            "SMALLDATETIME": TokenType.DATETIME,
    -260            "SMALLMONEY": TokenType.SMALLMONEY,
    -261            "SQL_VARIANT": TokenType.VARIANT,
    -262            "TIME": TokenType.TIMESTAMP,
    -263            "TOP": TokenType.TOP,
    -264            "UNIQUEIDENTIFIER": TokenType.UNIQUEIDENTIFIER,
    -265            "VARCHAR(MAX)": TokenType.TEXT,
    -266            "XML": TokenType.XML,
    -267        }
    -268
    -269        # TSQL allows @, # to appear as a variable/identifier prefix
    -270        SINGLE_TOKENS = tokens.Tokenizer.SINGLE_TOKENS.copy()
    -271        SINGLE_TOKENS.pop("@")
    -272        SINGLE_TOKENS.pop("#")
    +            
    245    class Tokenizer(tokens.Tokenizer):
    +246        IDENTIFIERS = ['"', ("[", "]")]
    +247
    +248        QUOTES = ["'", '"']
    +249
    +250        KEYWORDS = {
    +251            **tokens.Tokenizer.KEYWORDS,
    +252            "BIT": TokenType.BOOLEAN,
    +253            "DATETIME2": TokenType.DATETIME,
    +254            "DATETIMEOFFSET": TokenType.TIMESTAMPTZ,
    +255            "DECLARE": TokenType.COMMAND,
    +256            "IMAGE": TokenType.IMAGE,
    +257            "MONEY": TokenType.MONEY,
    +258            "NTEXT": TokenType.TEXT,
    +259            "NVARCHAR(MAX)": TokenType.TEXT,
    +260            "PRINT": TokenType.COMMAND,
    +261            "PROC": TokenType.PROCEDURE,
    +262            "REAL": TokenType.FLOAT,
    +263            "ROWVERSION": TokenType.ROWVERSION,
    +264            "SMALLDATETIME": TokenType.DATETIME,
    +265            "SMALLMONEY": TokenType.SMALLMONEY,
    +266            "SQL_VARIANT": TokenType.VARIANT,
    +267            "TIME": TokenType.TIMESTAMP,
    +268            "TOP": TokenType.TOP,
    +269            "UNIQUEIDENTIFIER": TokenType.UNIQUEIDENTIFIER,
    +270            "VARCHAR(MAX)": TokenType.TEXT,
    +271            "XML": TokenType.XML,
    +272        }
    +273
    +274        # TSQL allows @, # to appear as a variable/identifier prefix
    +275        SINGLE_TOKENS = tokens.Tokenizer.SINGLE_TOKENS.copy()
    +276        SINGLE_TOKENS.pop("@")
    +277        SINGLE_TOKENS.pop("#")
     
    @@ -1006,146 +1013,146 @@
    -
    274    class Parser(parser.Parser):
    -275        FUNCTIONS = {
    -276            **parser.Parser.FUNCTIONS,  # type: ignore
    -277            "CHARINDEX": lambda args: exp.StrPosition(
    -278                this=seq_get(args, 1),
    -279                substr=seq_get(args, 0),
    -280                position=seq_get(args, 2),
    -281            ),
    -282            "ISNULL": exp.Coalesce.from_arg_list,
    -283            "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL),
    -284            "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL),
    -285            "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True),
    -286            "DATEPART": _format_time_lambda(exp.TimeToStr),
    -287            "GETDATE": exp.CurrentTimestamp.from_arg_list,
    -288            "SYSDATETIME": exp.CurrentTimestamp.from_arg_list,
    -289            "IIF": exp.If.from_arg_list,
    -290            "LEN": exp.Length.from_arg_list,
    -291            "REPLICATE": exp.Repeat.from_arg_list,
    -292            "JSON_VALUE": exp.JSONExtractScalar.from_arg_list,
    -293            "FORMAT": _parse_format,
    -294            "EOMONTH": _parse_eomonth,
    -295        }
    -296
    -297        VAR_LENGTH_DATATYPES = {
    -298            DataType.Type.NVARCHAR,
    -299            DataType.Type.VARCHAR,
    -300            DataType.Type.CHAR,
    -301            DataType.Type.NCHAR,
    -302        }
    -303
    -304        RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - {  # type: ignore
    -305            TokenType.TABLE,
    -306            *parser.Parser.TYPE_TOKENS,  # type: ignore
    +            
    279    class Parser(parser.Parser):
    +280        FUNCTIONS = {
    +281            **parser.Parser.FUNCTIONS,  # type: ignore
    +282            "CHARINDEX": lambda args: exp.StrPosition(
    +283                this=seq_get(args, 1),
    +284                substr=seq_get(args, 0),
    +285                position=seq_get(args, 2),
    +286            ),
    +287            "ISNULL": exp.Coalesce.from_arg_list,
    +288            "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL),
    +289            "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL),
    +290            "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True),
    +291            "DATEPART": _format_time_lambda(exp.TimeToStr),
    +292            "GETDATE": exp.CurrentTimestamp.from_arg_list,
    +293            "SYSDATETIME": exp.CurrentTimestamp.from_arg_list,
    +294            "IIF": exp.If.from_arg_list,
    +295            "LEN": exp.Length.from_arg_list,
    +296            "REPLICATE": exp.Repeat.from_arg_list,
    +297            "JSON_VALUE": exp.JSONExtractScalar.from_arg_list,
    +298            "FORMAT": _parse_format,
    +299            "EOMONTH": _parse_eomonth,
    +300        }
    +301
    +302        VAR_LENGTH_DATATYPES = {
    +303            DataType.Type.NVARCHAR,
    +304            DataType.Type.VARCHAR,
    +305            DataType.Type.CHAR,
    +306            DataType.Type.NCHAR,
     307        }
     308
    -309        STATEMENT_PARSERS = {
    -310            **parser.Parser.STATEMENT_PARSERS,  # type: ignore
    -311            TokenType.END: lambda self: self._parse_command(),
    +309        RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - {  # type: ignore
    +310            TokenType.TABLE,
    +311            *parser.Parser.TYPE_TOKENS,  # type: ignore
     312        }
     313
    -314        def _parse_system_time(self) -> t.Optional[exp.Expression]:
    -315            if not self._match_text_seq("FOR", "SYSTEM_TIME"):
    -316                return None
    -317
    -318            if self._match_text_seq("AS", "OF"):
    -319                system_time = self.expression(
    -320                    exp.SystemTime, this=self._parse_bitwise(), kind="AS OF"
    -321                )
    -322            elif self._match_set((TokenType.FROM, TokenType.BETWEEN)):
    -323                kind = self._prev.text
    -324                this = self._parse_bitwise()
    -325                self._match_texts(("TO", "AND"))
    -326                expression = self._parse_bitwise()
    -327                system_time = self.expression(
    -328                    exp.SystemTime, this=this, expression=expression, kind=kind
    -329                )
    -330            elif self._match_text_seq("CONTAINED", "IN"):
    -331                args = self._parse_wrapped_csv(self._parse_bitwise)
    +314        STATEMENT_PARSERS = {
    +315            **parser.Parser.STATEMENT_PARSERS,  # type: ignore
    +316            TokenType.END: lambda self: self._parse_command(),
    +317        }
    +318
    +319        def _parse_system_time(self) -> t.Optional[exp.Expression]:
    +320            if not self._match_text_seq("FOR", "SYSTEM_TIME"):
    +321                return None
    +322
    +323            if self._match_text_seq("AS", "OF"):
    +324                system_time = self.expression(
    +325                    exp.SystemTime, this=self._parse_bitwise(), kind="AS OF"
    +326                )
    +327            elif self._match_set((TokenType.FROM, TokenType.BETWEEN)):
    +328                kind = self._prev.text
    +329                this = self._parse_bitwise()
    +330                self._match_texts(("TO", "AND"))
    +331                expression = self._parse_bitwise()
     332                system_time = self.expression(
    -333                    exp.SystemTime,
    -334                    this=seq_get(args, 0),
    -335                    expression=seq_get(args, 1),
    -336                    kind="CONTAINED IN",
    -337                )
    -338            elif self._match(TokenType.ALL):
    -339                system_time = self.expression(exp.SystemTime, kind="ALL")
    -340            else:
    -341                system_time = None
    -342                self.raise_error("Unable to parse FOR SYSTEM_TIME clause")
    -343
    -344            return system_time
    -345
    -346        def _parse_table_parts(self, schema: bool = False) -> exp.Expression:
    -347            table = super()._parse_table_parts(schema=schema)
    -348            table.set("system_time", self._parse_system_time())
    -349            return table
    +333                    exp.SystemTime, this=this, expression=expression, kind=kind
    +334                )
    +335            elif self._match_text_seq("CONTAINED", "IN"):
    +336                args = self._parse_wrapped_csv(self._parse_bitwise)
    +337                system_time = self.expression(
    +338                    exp.SystemTime,
    +339                    this=seq_get(args, 0),
    +340                    expression=seq_get(args, 1),
    +341                    kind="CONTAINED IN",
    +342                )
    +343            elif self._match(TokenType.ALL):
    +344                system_time = self.expression(exp.SystemTime, kind="ALL")
    +345            else:
    +346                system_time = None
    +347                self.raise_error("Unable to parse FOR SYSTEM_TIME clause")
    +348
    +349            return system_time
     350
    -351        def _parse_returns(self) -> exp.Expression:
    -352            table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS)
    -353            returns = super()._parse_returns()
    -354            returns.set("table", table)
    -355            return returns
    -356
    -357        def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]:
    -358            to = self._parse_types()
    -359            self._match(TokenType.COMMA)
    -360            this = self._parse_conjunction()
    +351        def _parse_table_parts(self, schema: bool = False) -> exp.Expression:
    +352            table = super()._parse_table_parts(schema=schema)
    +353            table.set("system_time", self._parse_system_time())
    +354            return table
    +355
    +356        def _parse_returns(self) -> exp.Expression:
    +357            table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS)
    +358            returns = super()._parse_returns()
    +359            returns.set("table", table)
    +360            return returns
     361
    -362            if not to or not this:
    -363                return None
    -364
    -365            # Retrieve length of datatype and override to default if not specified
    -366            if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES:
    -367                to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False)
    -368
    -369            # Check whether a conversion with format is applicable
    -370            if self._match(TokenType.COMMA):
    -371                format_val = self._parse_number()
    -372                format_val_name = format_val.name if format_val else ""
    +362        def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]:
    +363            to = self._parse_types()
    +364            self._match(TokenType.COMMA)
    +365            this = self._parse_conjunction()
    +366
    +367            if not to or not this:
    +368                return None
    +369
    +370            # Retrieve length of datatype and override to default if not specified
    +371            if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES:
    +372                to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False)
     373
    -374                if format_val_name not in TSQL.convert_format_mapping:
    -375                    raise ValueError(
    -376                        f"CONVERT function at T-SQL does not support format style {format_val_name}"
    -377                    )
    +374            # Check whether a conversion with format is applicable
    +375            if self._match(TokenType.COMMA):
    +376                format_val = self._parse_number()
    +377                format_val_name = format_val.name if format_val else ""
     378
    -379                format_norm = exp.Literal.string(TSQL.convert_format_mapping[format_val_name])
    -380
    -381                # Check whether the convert entails a string to date format
    -382                if to.this == DataType.Type.DATE:
    -383                    return self.expression(exp.StrToDate, this=this, format=format_norm)
    -384                # Check whether the convert entails a string to datetime format
    -385                elif to.this == DataType.Type.DATETIME:
    -386                    return self.expression(exp.StrToTime, this=this, format=format_norm)
    -387                # Check whether the convert entails a date to string format
    -388                elif to.this in self.VAR_LENGTH_DATATYPES:
    -389                    return self.expression(
    -390                        exp.Cast if strict else exp.TryCast,
    -391                        to=to,
    -392                        this=self.expression(exp.TimeToStr, this=this, format=format_norm),
    -393                    )
    -394                elif to.this == DataType.Type.TEXT:
    -395                    return self.expression(exp.TimeToStr, this=this, format=format_norm)
    -396
    -397            # Entails a simple cast without any format requirement
    -398            return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
    -399
    -400        def _parse_user_defined_function(
    -401            self, kind: t.Optional[TokenType] = None
    -402        ) -> t.Optional[exp.Expression]:
    -403            this = super()._parse_user_defined_function(kind=kind)
    +379                if format_val_name not in TSQL.convert_format_mapping:
    +380                    raise ValueError(
    +381                        f"CONVERT function at T-SQL does not support format style {format_val_name}"
    +382                    )
    +383
    +384                format_norm = exp.Literal.string(TSQL.convert_format_mapping[format_val_name])
    +385
    +386                # Check whether the convert entails a string to date format
    +387                if to.this == DataType.Type.DATE:
    +388                    return self.expression(exp.StrToDate, this=this, format=format_norm)
    +389                # Check whether the convert entails a string to datetime format
    +390                elif to.this == DataType.Type.DATETIME:
    +391                    return self.expression(exp.StrToTime, this=this, format=format_norm)
    +392                # Check whether the convert entails a date to string format
    +393                elif to.this in self.VAR_LENGTH_DATATYPES:
    +394                    return self.expression(
    +395                        exp.Cast if strict else exp.TryCast,
    +396                        to=to,
    +397                        this=self.expression(exp.TimeToStr, this=this, format=format_norm),
    +398                    )
    +399                elif to.this == DataType.Type.TEXT:
    +400                    return self.expression(exp.TimeToStr, this=this, format=format_norm)
    +401
    +402            # Entails a simple cast without any format requirement
    +403            return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
     404
    -405            if (
    -406                kind == TokenType.FUNCTION
    -407                or isinstance(this, exp.UserDefinedFunction)
    -408                or self._match(TokenType.ALIAS, advance=False)
    -409            ):
    -410                return this
    -411
    -412            expressions = self._parse_csv(self._parse_function_parameter)
    -413            return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions)
    +405        def _parse_user_defined_function(
    +406            self, kind: t.Optional[TokenType] = None
    +407        ) -> t.Optional[exp.Expression]:
    +408            this = super()._parse_user_defined_function(kind=kind)
    +409
    +410            if (
    +411                kind == TokenType.FUNCTION
    +412                or isinstance(this, exp.UserDefinedFunction)
    +413                or self._match(TokenType.ALIAS, advance=False)
    +414            ):
    +415                return this
    +416
    +417            expressions = self._parse_csv(self._parse_function_parameter)
    +418            return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions)
     
    @@ -1202,53 +1209,54 @@ Default: "nulls_are_small"
    -
    415    class Generator(generator.Generator):
    -416        LOCKING_READS_SUPPORTED = True
    -417
    -418        TYPE_MAPPING = {
    -419            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -420            exp.DataType.Type.BOOLEAN: "BIT",
    -421            exp.DataType.Type.INT: "INTEGER",
    -422            exp.DataType.Type.DECIMAL: "NUMERIC",
    -423            exp.DataType.Type.DATETIME: "DATETIME2",
    -424            exp.DataType.Type.VARIANT: "SQL_VARIANT",
    -425        }
    -426
    -427        TRANSFORMS = {
    -428            **generator.Generator.TRANSFORMS,  # type: ignore
    -429            exp.DateAdd: generate_date_delta_with_unit_sql,
    -430            exp.DateDiff: generate_date_delta_with_unit_sql,
    -431            exp.CurrentDate: rename_func("GETDATE"),
    -432            exp.CurrentTimestamp: rename_func("GETDATE"),
    -433            exp.If: rename_func("IIF"),
    -434            exp.NumberToStr: _format_sql,
    -435            exp.TimeToStr: _format_sql,
    -436            exp.GroupConcat: _string_agg_sql,
    -437        }
    -438
    -439        TRANSFORMS.pop(exp.ReturnsProperty)
    -440
    -441        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    -442            kind = expression.args["kind"]
    -443            if kind == "ALL":
    -444                return "FOR SYSTEM_TIME ALL"
    -445
    -446            start = self.sql(expression, "this")
    -447            if kind == "AS OF":
    -448                return f"FOR SYSTEM_TIME AS OF {start}"
    -449
    -450            end = self.sql(expression, "expression")
    -451            if kind == "FROM":
    -452                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    -453            if kind == "BETWEEN":
    -454                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +            
    420    class Generator(generator.Generator):
    +421        LOCKING_READS_SUPPORTED = True
    +422
    +423        TYPE_MAPPING = {
    +424            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +425            exp.DataType.Type.BOOLEAN: "BIT",
    +426            exp.DataType.Type.INT: "INTEGER",
    +427            exp.DataType.Type.DECIMAL: "NUMERIC",
    +428            exp.DataType.Type.DATETIME: "DATETIME2",
    +429            exp.DataType.Type.VARIANT: "SQL_VARIANT",
    +430        }
    +431
    +432        TRANSFORMS = {
    +433            **generator.Generator.TRANSFORMS,  # type: ignore
    +434            exp.DateAdd: generate_date_delta_with_unit_sql,
    +435            exp.DateDiff: generate_date_delta_with_unit_sql,
    +436            exp.CurrentDate: rename_func("GETDATE"),
    +437            exp.CurrentTimestamp: rename_func("GETDATE"),
    +438            exp.If: rename_func("IIF"),
    +439            exp.NumberToStr: _format_sql,
    +440            exp.TimeToStr: _format_sql,
    +441            exp.GroupConcat: _string_agg_sql,
    +442            exp.Min: min_or_least,
    +443        }
    +444
    +445        TRANSFORMS.pop(exp.ReturnsProperty)
    +446
    +447        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    +448            kind = expression.args["kind"]
    +449            if kind == "ALL":
    +450                return "FOR SYSTEM_TIME ALL"
    +451
    +452            start = self.sql(expression, "this")
    +453            if kind == "AS OF":
    +454                return f"FOR SYSTEM_TIME AS OF {start}"
     455
    -456            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
    -457
    -458        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    -459            table = expression.args.get("table")
    -460            table = f"{table} " if table else ""
    -461            return f"RETURNS {table}{self.sql(expression, 'this')}"
    +456            end = self.sql(expression, "expression")
    +457            if kind == "FROM":
    +458                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    +459            if kind == "BETWEEN":
    +460                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +461
    +462            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
    +463
    +464        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    +465            table = expression.args.get("table")
    +466            table = f"{table} " if table else ""
    +467            return f"RETURNS {table}{self.sql(expression, 'this')}"
     
    @@ -1308,22 +1316,22 @@ Default: True
    -
    441        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    -442            kind = expression.args["kind"]
    -443            if kind == "ALL":
    -444                return "FOR SYSTEM_TIME ALL"
    -445
    -446            start = self.sql(expression, "this")
    -447            if kind == "AS OF":
    -448                return f"FOR SYSTEM_TIME AS OF {start}"
    -449
    -450            end = self.sql(expression, "expression")
    -451            if kind == "FROM":
    -452                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    -453            if kind == "BETWEEN":
    -454                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +            
    447        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    +448            kind = expression.args["kind"]
    +449            if kind == "ALL":
    +450                return "FOR SYSTEM_TIME ALL"
    +451
    +452            start = self.sql(expression, "this")
    +453            if kind == "AS OF":
    +454                return f"FOR SYSTEM_TIME AS OF {start}"
     455
    -456            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
    +456            end = self.sql(expression, "expression")
    +457            if kind == "FROM":
    +458                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    +459            if kind == "BETWEEN":
    +460                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +461
    +462            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
     
    @@ -1341,10 +1349,10 @@ Default: True
    -
    458        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    -459            table = expression.args.get("table")
    -460            table = f"{table} " if table else ""
    -461            return f"RETURNS {table}{self.sql(expression, 'this')}"
    +            
    464        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    +465            table = expression.args.get("table")
    +466            table = f"{table} " if table else ""
    +467            return f"RETURNS {table}{self.sql(expression, 'this')}"
     
    @@ -1423,6 +1431,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -1524,6 +1533,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/executor/python.html b/docs/sqlglot/executor/python.html index d1e2d1c..8d6e46d 100644 --- a/docs/sqlglot/executor/python.html +++ b/docs/sqlglot/executor/python.html @@ -1781,6 +1781,7 @@ Default: True
    intersect_op
    introducer_sql
    pseudotype_sql
    +
    returning_sql
    rowformatdelimitedproperty_sql
    table_sql
    tablesample_sql
    @@ -1882,6 +1883,7 @@ Default: True
    intdiv_sql
    dpipe_sql
    div_sql
    +
    floatdiv_sql
    overlaps_sql
    distance_sql
    dot_sql
    diff --git a/docs/sqlglot/expressions.html b/docs/sqlglot/expressions.html index 84543d1..a920e22 100644 --- a/docs/sqlglot/expressions.html +++ b/docs/sqlglot/expressions.html @@ -553,6 +553,12 @@
    + +
  • + Returning +
      +
    +
  • Introducer @@ -1142,6 +1148,9 @@
  • window
  • +
  • + qualify +
  • distinct
  • @@ -1564,6 +1573,12 @@
    + +
  • + FloatDiv +
      +
    +
  • Overlaps @@ -3925,7 +3940,7 @@ SQL expressions, such as sqlglot.expressions.select< 1031 1032 1033class Delete(Expression): -1034 arg_types = {"with": False, "this": False, "using": False, "where": False} +1034 arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False} 1035 1036 1037class Drop(Expression): @@ -4026,3752 +4041,3778 @@ SQL expressions, such as sqlglot.expressions.select< 1132 "with": False, 1133 "this": True, 1134 "expression": False, -1135 "overwrite": False, -1136 "exists": False, -1137 "partition": False, -1138 "alternative": False, -1139 } -1140 +1135 "returning": False, +1136 "overwrite": False, +1137 "exists": False, +1138 "partition": False, +1139 "alternative": False, +1140 } 1141 -1142# https://dev.mysql.com/doc/refman/8.0/en/charset-introducer.html -1143class Introducer(Expression): -1144 arg_types = {"this": True, "expression": True} +1142 +1143class Returning(Expression): +1144 arg_types = {"expressions": True} 1145 1146 -1147# national char, like n'utf8' -1148class National(Expression): -1149 pass +1147# https://dev.mysql.com/doc/refman/8.0/en/charset-introducer.html +1148class Introducer(Expression): +1149 arg_types = {"this": True, "expression": True} 1150 1151 -1152class LoadData(Expression): -1153 arg_types = { -1154 "this": True, -1155 "local": False, -1156 "overwrite": False, -1157 "inpath": True, -1158 "partition": False, -1159 "input_format": False, -1160 "serde": False, -1161 } -1162 -1163 -1164class Partition(Expression): -1165 arg_types = {"expressions": True} -1166 +1152# national char, like n'utf8' +1153class National(Expression): +1154 pass +1155 +1156 +1157class LoadData(Expression): +1158 arg_types = { +1159 "this": True, +1160 "local": False, +1161 "overwrite": False, +1162 "inpath": True, +1163 "partition": False, +1164 "input_format": False, +1165 "serde": False, +1166 } 1167 -1168class Fetch(Expression): -1169 arg_types = {"direction": False, "count": False} -1170 +1168 +1169class Partition(Expression): +1170 arg_types = {"expressions": True} 1171 -1172class Group(Expression): -1173 arg_types = { -1174 "expressions": False, -1175 "grouping_sets": False, -1176 "cube": False, -1177 "rollup": False, -1178 } -1179 -1180 -1181class Lambda(Expression): -1182 arg_types = {"this": True, "expressions": True} -1183 +1172 +1173class Fetch(Expression): +1174 arg_types = {"direction": False, "count": False} +1175 +1176 +1177class Group(Expression): +1178 arg_types = { +1179 "expressions": False, +1180 "grouping_sets": False, +1181 "cube": False, +1182 "rollup": False, +1183 } 1184 -1185class Limit(Expression): -1186 arg_types = {"this": False, "expression": True} -1187 +1185 +1186class Lambda(Expression): +1187 arg_types = {"this": True, "expressions": True} 1188 -1189class Literal(Condition): -1190 arg_types = {"this": True, "is_string": True} -1191 -1192 def __eq__(self, other): -1193 return ( -1194 isinstance(other, Literal) -1195 and self.this == other.this -1196 and self.args["is_string"] == other.args["is_string"] -1197 ) -1198 -1199 def __hash__(self): -1200 return hash((self.key, self.this, self.args["is_string"])) -1201 -1202 @classmethod -1203 def number(cls, number) -> Literal: -1204 return cls(this=str(number), is_string=False) -1205 -1206 @classmethod -1207 def string(cls, string) -> Literal: -1208 return cls(this=str(string), is_string=True) -1209 -1210 @property -1211 def output_name(self): -1212 return self.name -1213 +1189 +1190class Limit(Expression): +1191 arg_types = {"this": False, "expression": True} +1192 +1193 +1194class Literal(Condition): +1195 arg_types = {"this": True, "is_string": True} +1196 +1197 def __eq__(self, other): +1198 return ( +1199 isinstance(other, Literal) +1200 and self.this == other.this +1201 and self.args["is_string"] == other.args["is_string"] +1202 ) +1203 +1204 def __hash__(self): +1205 return hash((self.key, self.this, self.args["is_string"])) +1206 +1207 @classmethod +1208 def number(cls, number) -> Literal: +1209 return cls(this=str(number), is_string=False) +1210 +1211 @classmethod +1212 def string(cls, string) -> Literal: +1213 return cls(this=str(string), is_string=True) 1214 -1215class Join(Expression): -1216 arg_types = { -1217 "this": True, -1218 "on": False, -1219 "side": False, -1220 "kind": False, -1221 "using": False, -1222 "natural": False, -1223 } -1224 -1225 @property -1226 def kind(self): -1227 return self.text("kind").upper() -1228 -1229 @property -1230 def side(self): -1231 return self.text("side").upper() -1232 -1233 @property -1234 def alias_or_name(self): -1235 return self.this.alias_or_name -1236 -1237 def on(self, *expressions, append=True, dialect=None, copy=True, **opts): -1238 """ -1239 Append to or set the ON expressions. -1240 -1241 Example: -1242 >>> import sqlglot -1243 >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql() -1244 'JOIN x ON y = 1' +1215 @property +1216 def output_name(self): +1217 return self.name +1218 +1219 +1220class Join(Expression): +1221 arg_types = { +1222 "this": True, +1223 "on": False, +1224 "side": False, +1225 "kind": False, +1226 "using": False, +1227 "natural": False, +1228 } +1229 +1230 @property +1231 def kind(self): +1232 return self.text("kind").upper() +1233 +1234 @property +1235 def side(self): +1236 return self.text("side").upper() +1237 +1238 @property +1239 def alias_or_name(self): +1240 return self.this.alias_or_name +1241 +1242 def on(self, *expressions, append=True, dialect=None, copy=True, **opts): +1243 """ +1244 Append to or set the ON expressions. 1245 -1246 Args: -1247 *expressions (str | Expression): the SQL code strings to parse. -1248 If an `Expression` instance is passed, it will be used as-is. -1249 Multiple expressions are combined with an AND operator. -1250 append (bool): if `True`, AND the new expressions to any existing expression. -1251 Otherwise, this resets the expression. -1252 dialect (str): the dialect used to parse the input expressions. -1253 copy (bool): if `False`, modify this expression instance in-place. -1254 opts (kwargs): other options to use to parse the input expressions. -1255 -1256 Returns: -1257 Join: the modified join expression. -1258 """ -1259 join = _apply_conjunction_builder( -1260 *expressions, -1261 instance=self, -1262 arg="on", -1263 append=append, -1264 dialect=dialect, -1265 copy=copy, -1266 **opts, -1267 ) -1268 -1269 if join.kind == "CROSS": -1270 join.set("kind", None) -1271 -1272 return join +1246 Example: +1247 >>> import sqlglot +1248 >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql() +1249 'JOIN x ON y = 1' +1250 +1251 Args: +1252 *expressions (str | Expression): the SQL code strings to parse. +1253 If an `Expression` instance is passed, it will be used as-is. +1254 Multiple expressions are combined with an AND operator. +1255 append (bool): if `True`, AND the new expressions to any existing expression. +1256 Otherwise, this resets the expression. +1257 dialect (str): the dialect used to parse the input expressions. +1258 copy (bool): if `False`, modify this expression instance in-place. +1259 opts (kwargs): other options to use to parse the input expressions. +1260 +1261 Returns: +1262 Join: the modified join expression. +1263 """ +1264 join = _apply_conjunction_builder( +1265 *expressions, +1266 instance=self, +1267 arg="on", +1268 append=append, +1269 dialect=dialect, +1270 copy=copy, +1271 **opts, +1272 ) 1273 -1274 def using(self, *expressions, append=True, dialect=None, copy=True, **opts): -1275 """ -1276 Append to or set the USING expressions. -1277 -1278 Example: -1279 >>> import sqlglot -1280 >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql() -1281 'JOIN x USING (foo, bla)' +1274 if join.kind == "CROSS": +1275 join.set("kind", None) +1276 +1277 return join +1278 +1279 def using(self, *expressions, append=True, dialect=None, copy=True, **opts): +1280 """ +1281 Append to or set the USING expressions. 1282 -1283 Args: -1284 *expressions (str | Expression): the SQL code strings to parse. -1285 If an `Expression` instance is passed, it will be used as-is. -1286 append (bool): if `True`, concatenate the new expressions to the existing "using" list. -1287 Otherwise, this resets the expression. -1288 dialect (str): the dialect used to parse the input expressions. -1289 copy (bool): if `False`, modify this expression instance in-place. -1290 opts (kwargs): other options to use to parse the input expressions. -1291 -1292 Returns: -1293 Join: the modified join expression. -1294 """ -1295 join = _apply_list_builder( -1296 *expressions, -1297 instance=self, -1298 arg="using", -1299 append=append, -1300 dialect=dialect, -1301 copy=copy, -1302 **opts, -1303 ) -1304 -1305 if join.kind == "CROSS": -1306 join.set("kind", None) -1307 -1308 return join +1283 Example: +1284 >>> import sqlglot +1285 >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql() +1286 'JOIN x USING (foo, bla)' +1287 +1288 Args: +1289 *expressions (str | Expression): the SQL code strings to parse. +1290 If an `Expression` instance is passed, it will be used as-is. +1291 append (bool): if `True`, concatenate the new expressions to the existing "using" list. +1292 Otherwise, this resets the expression. +1293 dialect (str): the dialect used to parse the input expressions. +1294 copy (bool): if `False`, modify this expression instance in-place. +1295 opts (kwargs): other options to use to parse the input expressions. +1296 +1297 Returns: +1298 Join: the modified join expression. +1299 """ +1300 join = _apply_list_builder( +1301 *expressions, +1302 instance=self, +1303 arg="using", +1304 append=append, +1305 dialect=dialect, +1306 copy=copy, +1307 **opts, +1308 ) 1309 -1310 -1311class Lateral(UDTF): -1312 arg_types = {"this": True, "view": False, "outer": False, "alias": False} -1313 +1310 if join.kind == "CROSS": +1311 join.set("kind", None) +1312 +1313 return join 1314 -1315class MatchRecognize(Expression): -1316 arg_types = { -1317 "partition_by": False, -1318 "order": False, -1319 "measures": False, -1320 "rows": False, -1321 "after": False, -1322 "pattern": False, -1323 "define": False, -1324 } -1325 -1326 -1327# Clickhouse FROM FINAL modifier -1328# https://clickhouse.com/docs/en/sql-reference/statements/select/from/#final-modifier -1329class Final(Expression): -1330 pass +1315 +1316class Lateral(UDTF): +1317 arg_types = {"this": True, "view": False, "outer": False, "alias": False} +1318 +1319 +1320class MatchRecognize(Expression): +1321 arg_types = { +1322 "partition_by": False, +1323 "order": False, +1324 "measures": False, +1325 "rows": False, +1326 "after": False, +1327 "pattern": False, +1328 "define": False, +1329 } +1330 1331 -1332 -1333class Offset(Expression): -1334 arg_types = {"this": False, "expression": True} -1335 +1332# Clickhouse FROM FINAL modifier +1333# https://clickhouse.com/docs/en/sql-reference/statements/select/from/#final-modifier +1334class Final(Expression): +1335 pass 1336 -1337class Order(Expression): -1338 arg_types = {"this": False, "expressions": True} -1339 +1337 +1338class Offset(Expression): +1339 arg_types = {"this": False, "expression": True} 1340 -1341# hive specific sorts -1342# https://cwiki.apache.org/confluence/display/Hive/LanguageManual+SortBy -1343class Cluster(Order): -1344 pass +1341 +1342class Order(Expression): +1343 arg_types = {"this": False, "expressions": True} +1344 1345 -1346 -1347class Distribute(Order): -1348 pass -1349 +1346# hive specific sorts +1347# https://cwiki.apache.org/confluence/display/Hive/LanguageManual+SortBy +1348class Cluster(Order): +1349 pass 1350 -1351class Sort(Order): -1352 pass -1353 +1351 +1352class Distribute(Order): +1353 pass 1354 -1355class Ordered(Expression): -1356 arg_types = {"this": True, "desc": True, "nulls_first": True} -1357 +1355 +1356class Sort(Order): +1357 pass 1358 -1359class Property(Expression): -1360 arg_types = {"this": True, "value": True} -1361 +1359 +1360class Ordered(Expression): +1361 arg_types = {"this": True, "desc": True, "nulls_first": True} 1362 -1363class AfterJournalProperty(Property): -1364 arg_types = {"no": True, "dual": False, "local": False} -1365 +1363 +1364class Property(Expression): +1365 arg_types = {"this": True, "value": True} 1366 -1367class AlgorithmProperty(Property): -1368 arg_types = {"this": True} -1369 +1367 +1368class AfterJournalProperty(Property): +1369 arg_types = {"no": True, "dual": False, "local": False} 1370 -1371class AutoIncrementProperty(Property): -1372 arg_types = {"this": True} -1373 +1371 +1372class AlgorithmProperty(Property): +1373 arg_types = {"this": True} 1374 -1375class BlockCompressionProperty(Property): -1376 arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True} -1377 +1375 +1376class AutoIncrementProperty(Property): +1377 arg_types = {"this": True} 1378 -1379class CharacterSetProperty(Property): -1380 arg_types = {"this": True, "default": True} -1381 +1379 +1380class BlockCompressionProperty(Property): +1381 arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True} 1382 -1383class ChecksumProperty(Property): -1384 arg_types = {"on": False, "default": False} -1385 +1383 +1384class CharacterSetProperty(Property): +1385 arg_types = {"this": True, "default": True} 1386 -1387class CollateProperty(Property): -1388 arg_types = {"this": True} -1389 +1387 +1388class ChecksumProperty(Property): +1389 arg_types = {"on": False, "default": False} 1390 -1391class DataBlocksizeProperty(Property): -1392 arg_types = {"size": False, "units": False, "min": False, "default": False} -1393 +1391 +1392class CollateProperty(Property): +1393 arg_types = {"this": True} 1394 -1395class DefinerProperty(Property): -1396 arg_types = {"this": True} -1397 +1395 +1396class DataBlocksizeProperty(Property): +1397 arg_types = {"size": False, "units": False, "min": False, "default": False} 1398 -1399class DistKeyProperty(Property): -1400 arg_types = {"this": True} -1401 +1399 +1400class DefinerProperty(Property): +1401 arg_types = {"this": True} 1402 -1403class DistStyleProperty(Property): -1404 arg_types = {"this": True} -1405 +1403 +1404class DistKeyProperty(Property): +1405 arg_types = {"this": True} 1406 -1407class EngineProperty(Property): -1408 arg_types = {"this": True} -1409 +1407 +1408class DistStyleProperty(Property): +1409 arg_types = {"this": True} 1410 -1411class ExecuteAsProperty(Property): -1412 arg_types = {"this": True} -1413 +1411 +1412class EngineProperty(Property): +1413 arg_types = {"this": True} 1414 -1415class ExternalProperty(Property): -1416 arg_types = {"this": False} -1417 +1415 +1416class ExecuteAsProperty(Property): +1417 arg_types = {"this": True} 1418 -1419class FallbackProperty(Property): -1420 arg_types = {"no": True, "protection": False} -1421 +1419 +1420class ExternalProperty(Property): +1421 arg_types = {"this": False} 1422 -1423class FileFormatProperty(Property): -1424 arg_types = {"this": True} -1425 +1423 +1424class FallbackProperty(Property): +1425 arg_types = {"no": True, "protection": False} 1426 -1427class FreespaceProperty(Property): -1428 arg_types = {"this": True, "percent": False} -1429 +1427 +1428class FileFormatProperty(Property): +1429 arg_types = {"this": True} 1430 -1431class IsolatedLoadingProperty(Property): -1432 arg_types = { -1433 "no": True, -1434 "concurrent": True, -1435 "for_all": True, -1436 "for_insert": True, -1437 "for_none": True, -1438 } -1439 -1440 -1441class JournalProperty(Property): -1442 arg_types = {"no": True, "dual": False, "before": False} -1443 +1431 +1432class FreespaceProperty(Property): +1433 arg_types = {"this": True, "percent": False} +1434 +1435 +1436class IsolatedLoadingProperty(Property): +1437 arg_types = { +1438 "no": True, +1439 "concurrent": True, +1440 "for_all": True, +1441 "for_insert": True, +1442 "for_none": True, +1443 } 1444 -1445class LanguageProperty(Property): -1446 arg_types = {"this": True} -1447 +1445 +1446class JournalProperty(Property): +1447 arg_types = {"no": True, "dual": False, "before": False} 1448 -1449class LikeProperty(Property): -1450 arg_types = {"this": True, "expressions": False} -1451 +1449 +1450class LanguageProperty(Property): +1451 arg_types = {"this": True} 1452 -1453class LocationProperty(Property): -1454 arg_types = {"this": True} -1455 +1453 +1454class LikeProperty(Property): +1455 arg_types = {"this": True, "expressions": False} 1456 -1457class LockingProperty(Property): -1458 arg_types = { -1459 "this": False, -1460 "kind": True, -1461 "for_or_in": True, -1462 "lock_type": True, -1463 "override": False, -1464 } -1465 -1466 -1467class LogProperty(Property): -1468 arg_types = {"no": True} -1469 +1457 +1458class LocationProperty(Property): +1459 arg_types = {"this": True} +1460 +1461 +1462class LockingProperty(Property): +1463 arg_types = { +1464 "this": False, +1465 "kind": True, +1466 "for_or_in": True, +1467 "lock_type": True, +1468 "override": False, +1469 } 1470 -1471class MaterializedProperty(Property): -1472 arg_types = {"this": False} -1473 +1471 +1472class LogProperty(Property): +1473 arg_types = {"no": True} 1474 -1475class MergeBlockRatioProperty(Property): -1476 arg_types = {"this": False, "no": False, "default": False, "percent": False} -1477 +1475 +1476class MaterializedProperty(Property): +1477 arg_types = {"this": False} 1478 -1479class NoPrimaryIndexProperty(Property): -1480 arg_types = {"this": False} -1481 +1479 +1480class MergeBlockRatioProperty(Property): +1481 arg_types = {"this": False, "no": False, "default": False, "percent": False} 1482 -1483class OnCommitProperty(Property): -1484 arg_type = {"this": False} -1485 +1483 +1484class NoPrimaryIndexProperty(Property): +1485 arg_types = {"this": False} 1486 -1487class PartitionedByProperty(Property): -1488 arg_types = {"this": True} -1489 +1487 +1488class OnCommitProperty(Property): +1489 arg_type = {"this": False} 1490 -1491class ReturnsProperty(Property): -1492 arg_types = {"this": True, "is_table": False, "table": False} -1493 +1491 +1492class PartitionedByProperty(Property): +1493 arg_types = {"this": True} 1494 -1495class RowFormatDelimitedProperty(Property): -1496 # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml -1497 arg_types = { -1498 "fields": False, -1499 "escaped": False, -1500 "collection_items": False, -1501 "map_keys": False, -1502 "lines": False, -1503 "null": False, -1504 "serde": False, -1505 } -1506 -1507 -1508class RowFormatSerdeProperty(Property): -1509 arg_types = {"this": True} -1510 +1495 +1496class ReturnsProperty(Property): +1497 arg_types = {"this": True, "is_table": False, "table": False} +1498 +1499 +1500class RowFormatDelimitedProperty(Property): +1501 # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml +1502 arg_types = { +1503 "fields": False, +1504 "escaped": False, +1505 "collection_items": False, +1506 "map_keys": False, +1507 "lines": False, +1508 "null": False, +1509 "serde": False, +1510 } 1511 -1512class SchemaCommentProperty(Property): -1513 arg_types = {"this": True} -1514 +1512 +1513class RowFormatSerdeProperty(Property): +1514 arg_types = {"this": True} 1515 -1516class SerdeProperties(Property): -1517 arg_types = {"expressions": True} -1518 +1516 +1517class SchemaCommentProperty(Property): +1518 arg_types = {"this": True} 1519 -1520class SetProperty(Property): -1521 arg_types = {"multi": True} -1522 +1520 +1521class SerdeProperties(Property): +1522 arg_types = {"expressions": True} 1523 -1524class SortKeyProperty(Property): -1525 arg_types = {"this": True, "compound": False} -1526 +1524 +1525class SetProperty(Property): +1526 arg_types = {"multi": True} 1527 -1528class SqlSecurityProperty(Property): -1529 arg_types = {"definer": True} -1530 +1528 +1529class SortKeyProperty(Property): +1530 arg_types = {"this": True, "compound": False} 1531 -1532class TableFormatProperty(Property): -1533 arg_types = {"this": True} -1534 +1532 +1533class SqlSecurityProperty(Property): +1534 arg_types = {"definer": True} 1535 -1536class TemporaryProperty(Property): -1537 arg_types = {"global_": True} -1538 +1536 +1537class TableFormatProperty(Property): +1538 arg_types = {"this": True} 1539 -1540class TransientProperty(Property): -1541 arg_types = {"this": False} -1542 +1540 +1541class TemporaryProperty(Property): +1542 arg_types = {"global_": True} 1543 -1544class VolatilityProperty(Property): -1545 arg_types = {"this": True} -1546 +1544 +1545class TransientProperty(Property): +1546 arg_types = {"this": False} 1547 -1548class WithDataProperty(Property): -1549 arg_types = {"no": True, "statistics": False} -1550 +1548 +1549class VolatilityProperty(Property): +1550 arg_types = {"this": True} 1551 -1552class WithJournalTableProperty(Property): -1553 arg_types = {"this": True} -1554 +1552 +1553class WithDataProperty(Property): +1554 arg_types = {"no": True, "statistics": False} 1555 -1556class Properties(Expression): -1557 arg_types = {"expressions": True} -1558 -1559 NAME_TO_PROPERTY = { -1560 "ALGORITHM": AlgorithmProperty, -1561 "AUTO_INCREMENT": AutoIncrementProperty, -1562 "CHARACTER SET": CharacterSetProperty, -1563 "COLLATE": CollateProperty, -1564 "COMMENT": SchemaCommentProperty, -1565 "DEFINER": DefinerProperty, -1566 "DISTKEY": DistKeyProperty, -1567 "DISTSTYLE": DistStyleProperty, -1568 "ENGINE": EngineProperty, -1569 "EXECUTE AS": ExecuteAsProperty, -1570 "FORMAT": FileFormatProperty, -1571 "LANGUAGE": LanguageProperty, -1572 "LOCATION": LocationProperty, -1573 "PARTITIONED_BY": PartitionedByProperty, -1574 "RETURNS": ReturnsProperty, -1575 "SORTKEY": SortKeyProperty, -1576 "TABLE_FORMAT": TableFormatProperty, -1577 } -1578 -1579 PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()} -1580 -1581 # CREATE property locations -1582 # Form: schema specified -1583 # create [POST_CREATE] -1584 # table a [POST_NAME] -1585 # (b int) [POST_SCHEMA] -1586 # with ([POST_WITH]) -1587 # index (b) [POST_INDEX] -1588 # -1589 # Form: alias selection -1590 # create [POST_CREATE] -1591 # table a [POST_NAME] -1592 # as [POST_ALIAS] (select * from b) [POST_EXPRESSION] -1593 # index (c) [POST_INDEX] -1594 class Location(AutoName): -1595 POST_CREATE = auto() -1596 POST_NAME = auto() -1597 POST_SCHEMA = auto() -1598 POST_WITH = auto() -1599 POST_ALIAS = auto() -1600 POST_EXPRESSION = auto() -1601 POST_INDEX = auto() -1602 UNSUPPORTED = auto() -1603 -1604 @classmethod -1605 def from_dict(cls, properties_dict) -> Properties: -1606 expressions = [] -1607 for key, value in properties_dict.items(): -1608 property_cls = cls.NAME_TO_PROPERTY.get(key.upper()) -1609 if property_cls: -1610 expressions.append(property_cls(this=convert(value))) -1611 else: -1612 expressions.append(Property(this=Literal.string(key), value=convert(value))) -1613 -1614 return cls(expressions=expressions) -1615 -1616 -1617class Qualify(Expression): -1618 pass -1619 +1556 +1557class WithJournalTableProperty(Property): +1558 arg_types = {"this": True} +1559 +1560 +1561class Properties(Expression): +1562 arg_types = {"expressions": True} +1563 +1564 NAME_TO_PROPERTY = { +1565 "ALGORITHM": AlgorithmProperty, +1566 "AUTO_INCREMENT": AutoIncrementProperty, +1567 "CHARACTER SET": CharacterSetProperty, +1568 "COLLATE": CollateProperty, +1569 "COMMENT": SchemaCommentProperty, +1570 "DEFINER": DefinerProperty, +1571 "DISTKEY": DistKeyProperty, +1572 "DISTSTYLE": DistStyleProperty, +1573 "ENGINE": EngineProperty, +1574 "EXECUTE AS": ExecuteAsProperty, +1575 "FORMAT": FileFormatProperty, +1576 "LANGUAGE": LanguageProperty, +1577 "LOCATION": LocationProperty, +1578 "PARTITIONED_BY": PartitionedByProperty, +1579 "RETURNS": ReturnsProperty, +1580 "SORTKEY": SortKeyProperty, +1581 "TABLE_FORMAT": TableFormatProperty, +1582 } +1583 +1584 PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()} +1585 +1586 # CREATE property locations +1587 # Form: schema specified +1588 # create [POST_CREATE] +1589 # table a [POST_NAME] +1590 # (b int) [POST_SCHEMA] +1591 # with ([POST_WITH]) +1592 # index (b) [POST_INDEX] +1593 # +1594 # Form: alias selection +1595 # create [POST_CREATE] +1596 # table a [POST_NAME] +1597 # as [POST_ALIAS] (select * from b) [POST_EXPRESSION] +1598 # index (c) [POST_INDEX] +1599 class Location(AutoName): +1600 POST_CREATE = auto() +1601 POST_NAME = auto() +1602 POST_SCHEMA = auto() +1603 POST_WITH = auto() +1604 POST_ALIAS = auto() +1605 POST_EXPRESSION = auto() +1606 POST_INDEX = auto() +1607 UNSUPPORTED = auto() +1608 +1609 @classmethod +1610 def from_dict(cls, properties_dict) -> Properties: +1611 expressions = [] +1612 for key, value in properties_dict.items(): +1613 property_cls = cls.NAME_TO_PROPERTY.get(key.upper()) +1614 if property_cls: +1615 expressions.append(property_cls(this=convert(value))) +1616 else: +1617 expressions.append(Property(this=Literal.string(key), value=convert(value))) +1618 +1619 return cls(expressions=expressions) 1620 -1621# https://www.ibm.com/docs/en/ias?topic=procedures-return-statement-in-sql -1622class Return(Expression): +1621 +1622class Qualify(Expression): 1623 pass 1624 1625 -1626class Reference(Expression): -1627 arg_types = {"this": True, "expressions": False, "options": False} -1628 +1626# https://www.ibm.com/docs/en/ias?topic=procedures-return-statement-in-sql +1627class Return(Expression): +1628 pass 1629 -1630class Tuple(Expression): -1631 arg_types = {"expressions": False} -1632 +1630 +1631class Reference(Expression): +1632 arg_types = {"this": True, "expressions": False, "options": False} 1633 -1634class Subqueryable(Unionable): -1635 def subquery(self, alias=None, copy=True) -> Subquery: -1636 """ -1637 Convert this expression to an aliased expression that can be used as a Subquery. +1634 +1635class Tuple(Expression): +1636 arg_types = {"expressions": False} +1637 1638 -1639 Example: -1640 >>> subquery = Select().select("x").from_("tbl").subquery() -1641 >>> Select().select("x").from_(subquery).sql() -1642 'SELECT x FROM (SELECT x FROM tbl)' +1639class Subqueryable(Unionable): +1640 def subquery(self, alias=None, copy=True) -> Subquery: +1641 """ +1642 Convert this expression to an aliased expression that can be used as a Subquery. 1643 -1644 Args: -1645 alias (str | Identifier): an optional alias for the subquery -1646 copy (bool): if `False`, modify this expression instance in-place. -1647 -1648 Returns: -1649 Alias: the subquery -1650 """ -1651 instance = _maybe_copy(self, copy) -1652 return Subquery( -1653 this=instance, -1654 alias=TableAlias(this=to_identifier(alias)), -1655 ) -1656 -1657 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: -1658 raise NotImplementedError -1659 -1660 @property -1661 def ctes(self): -1662 with_ = self.args.get("with") -1663 if not with_: -1664 return [] -1665 return with_.expressions -1666 -1667 @property -1668 def selects(self): -1669 raise NotImplementedError("Subqueryable objects must implement `selects`") -1670 -1671 @property -1672 def named_selects(self): -1673 raise NotImplementedError("Subqueryable objects must implement `named_selects`") -1674 -1675 def with_( -1676 self, -1677 alias, -1678 as_, -1679 recursive=None, -1680 append=True, -1681 dialect=None, -1682 copy=True, -1683 **opts, -1684 ): -1685 """ -1686 Append to or set the common table expressions. -1687 -1688 Example: -1689 >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql() -1690 'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2' -1691 -1692 Args: -1693 alias (str | Expression): the SQL code string to parse as the table name. -1694 If an `Expression` instance is passed, this is used as-is. -1695 as_ (str | Expression): the SQL code string to parse as the table expression. -1696 If an `Expression` instance is passed, it will be used as-is. -1697 recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`. -1698 append (bool): if `True`, add to any existing expressions. -1699 Otherwise, this resets the expressions. -1700 dialect (str): the dialect used to parse the input expression. -1701 copy (bool): if `False`, modify this expression instance in-place. -1702 opts (kwargs): other options to use to parse the input expressions. -1703 -1704 Returns: -1705 Select: the modified expression. -1706 """ -1707 alias_expression = maybe_parse( -1708 alias, -1709 dialect=dialect, -1710 into=TableAlias, -1711 **opts, -1712 ) -1713 as_expression = maybe_parse( -1714 as_, -1715 dialect=dialect, +1644 Example: +1645 >>> subquery = Select().select("x").from_("tbl").subquery() +1646 >>> Select().select("x").from_(subquery).sql() +1647 'SELECT x FROM (SELECT x FROM tbl)' +1648 +1649 Args: +1650 alias (str | Identifier): an optional alias for the subquery +1651 copy (bool): if `False`, modify this expression instance in-place. +1652 +1653 Returns: +1654 Alias: the subquery +1655 """ +1656 instance = _maybe_copy(self, copy) +1657 return Subquery( +1658 this=instance, +1659 alias=TableAlias(this=to_identifier(alias)), +1660 ) +1661 +1662 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: +1663 raise NotImplementedError +1664 +1665 @property +1666 def ctes(self): +1667 with_ = self.args.get("with") +1668 if not with_: +1669 return [] +1670 return with_.expressions +1671 +1672 @property +1673 def selects(self): +1674 raise NotImplementedError("Subqueryable objects must implement `selects`") +1675 +1676 @property +1677 def named_selects(self): +1678 raise NotImplementedError("Subqueryable objects must implement `named_selects`") +1679 +1680 def with_( +1681 self, +1682 alias, +1683 as_, +1684 recursive=None, +1685 append=True, +1686 dialect=None, +1687 copy=True, +1688 **opts, +1689 ): +1690 """ +1691 Append to or set the common table expressions. +1692 +1693 Example: +1694 >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql() +1695 'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2' +1696 +1697 Args: +1698 alias (str | Expression): the SQL code string to parse as the table name. +1699 If an `Expression` instance is passed, this is used as-is. +1700 as_ (str | Expression): the SQL code string to parse as the table expression. +1701 If an `Expression` instance is passed, it will be used as-is. +1702 recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`. +1703 append (bool): if `True`, add to any existing expressions. +1704 Otherwise, this resets the expressions. +1705 dialect (str): the dialect used to parse the input expression. +1706 copy (bool): if `False`, modify this expression instance in-place. +1707 opts (kwargs): other options to use to parse the input expressions. +1708 +1709 Returns: +1710 Select: the modified expression. +1711 """ +1712 alias_expression = maybe_parse( +1713 alias, +1714 dialect=dialect, +1715 into=TableAlias, 1716 **opts, 1717 ) -1718 cte = CTE( -1719 this=as_expression, -1720 alias=alias_expression, -1721 ) -1722 return _apply_child_list_builder( -1723 cte, -1724 instance=self, -1725 arg="with", -1726 append=append, -1727 copy=copy, -1728 into=With, -1729 properties={"recursive": recursive or False}, -1730 ) -1731 -1732 -1733QUERY_MODIFIERS = { -1734 "match": False, -1735 "laterals": False, -1736 "joins": False, -1737 "pivots": False, -1738 "where": False, -1739 "group": False, -1740 "having": False, -1741 "qualify": False, -1742 "windows": False, -1743 "distribute": False, -1744 "sort": False, -1745 "cluster": False, -1746 "order": False, -1747 "limit": False, -1748 "offset": False, -1749 "lock": False, -1750} -1751 -1752 -1753class Table(Expression): -1754 arg_types = { -1755 "this": True, -1756 "alias": False, -1757 "db": False, -1758 "catalog": False, -1759 "laterals": False, -1760 "joins": False, -1761 "pivots": False, -1762 "hints": False, -1763 "system_time": False, -1764 } -1765 -1766 @property -1767 def db(self) -> str: -1768 return self.text("db") -1769 -1770 @property -1771 def catalog(self) -> str: -1772 return self.text("catalog") -1773 -1774 -1775# See the TSQL "Querying data in a system-versioned temporal table" page -1776class SystemTime(Expression): -1777 arg_types = { -1778 "this": False, -1779 "expression": False, -1780 "kind": True, -1781 } -1782 -1783 -1784class Union(Subqueryable): -1785 arg_types = { -1786 "with": False, -1787 "this": True, -1788 "expression": True, -1789 "distinct": False, -1790 **QUERY_MODIFIERS, -1791 } -1792 -1793 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: -1794 """ -1795 Set the LIMIT expression. -1796 -1797 Example: -1798 >>> select("1").union(select("1")).limit(1).sql() -1799 'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1' -1800 -1801 Args: -1802 expression (str | int | Expression): the SQL code string to parse. -1803 This can also be an integer. -1804 If a `Limit` instance is passed, this is used as-is. -1805 If another `Expression` instance is passed, it will be wrapped in a `Limit`. -1806 dialect (str): the dialect used to parse the input expression. -1807 copy (bool): if `False`, modify this expression instance in-place. -1808 opts (kwargs): other options to use to parse the input expressions. -1809 -1810 Returns: -1811 Select: The limited subqueryable. -1812 """ -1813 return ( -1814 select("*") -1815 .from_(self.subquery(alias="_l_0", copy=copy)) -1816 .limit(expression, dialect=dialect, copy=False, **opts) -1817 ) -1818 -1819 def select( -1820 self, -1821 *expressions: str | Expression, -1822 append: bool = True, -1823 dialect: DialectType = None, -1824 copy: bool = True, -1825 **opts, -1826 ) -> Union: -1827 """Append to or set the SELECT of the union recursively. -1828 -1829 Example: -1830 >>> from sqlglot import parse_one -1831 >>> parse_one("select a from x union select a from y union select a from z").select("b").sql() -1832 'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z' -1833 -1834 Args: -1835 *expressions: the SQL code strings to parse. -1836 If an `Expression` instance is passed, it will be used as-is. -1837 append: if `True`, add to any existing expressions. -1838 Otherwise, this resets the expressions. -1839 dialect: the dialect used to parse the input expressions. -1840 copy: if `False`, modify this expression instance in-place. -1841 opts: other options to use to parse the input expressions. -1842 -1843 Returns: -1844 Union: the modified expression. -1845 """ -1846 this = self.copy() if copy else self -1847 this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts) -1848 this.expression.unnest().select( -1849 *expressions, append=append, dialect=dialect, copy=False, **opts -1850 ) -1851 return this -1852 -1853 @property -1854 def named_selects(self): -1855 return self.this.unnest().named_selects -1856 -1857 @property -1858 def is_star(self) -> bool: -1859 return self.this.is_star or self.expression.is_star -1860 -1861 @property -1862 def selects(self): -1863 return self.this.unnest().selects -1864 -1865 @property -1866 def left(self): -1867 return self.this -1868 -1869 @property -1870 def right(self): -1871 return self.expression -1872 -1873 -1874class Except(Union): -1875 pass -1876 -1877 -1878class Intersect(Union): -1879 pass -1880 -1881 -1882class Unnest(UDTF): -1883 arg_types = { -1884 "expressions": True, -1885 "ordinality": False, -1886 "alias": False, -1887 "offset": False, -1888 } -1889 -1890 -1891class Update(Expression): -1892 arg_types = { -1893 "with": False, -1894 "this": False, -1895 "expressions": True, -1896 "from": False, -1897 "where": False, -1898 } -1899 -1900 -1901class Values(UDTF): -1902 arg_types = { -1903 "expressions": True, -1904 "ordinality": False, -1905 "alias": False, -1906 } +1718 as_expression = maybe_parse( +1719 as_, +1720 dialect=dialect, +1721 **opts, +1722 ) +1723 cte = CTE( +1724 this=as_expression, +1725 alias=alias_expression, +1726 ) +1727 return _apply_child_list_builder( +1728 cte, +1729 instance=self, +1730 arg="with", +1731 append=append, +1732 copy=copy, +1733 into=With, +1734 properties={"recursive": recursive or False}, +1735 ) +1736 +1737 +1738QUERY_MODIFIERS = { +1739 "match": False, +1740 "laterals": False, +1741 "joins": False, +1742 "pivots": False, +1743 "where": False, +1744 "group": False, +1745 "having": False, +1746 "qualify": False, +1747 "windows": False, +1748 "distribute": False, +1749 "sort": False, +1750 "cluster": False, +1751 "order": False, +1752 "limit": False, +1753 "offset": False, +1754 "lock": False, +1755 "sample": False, +1756} +1757 +1758 +1759class Table(Expression): +1760 arg_types = { +1761 "this": True, +1762 "alias": False, +1763 "db": False, +1764 "catalog": False, +1765 "laterals": False, +1766 "joins": False, +1767 "pivots": False, +1768 "hints": False, +1769 "system_time": False, +1770 } +1771 +1772 @property +1773 def db(self) -> str: +1774 return self.text("db") +1775 +1776 @property +1777 def catalog(self) -> str: +1778 return self.text("catalog") +1779 +1780 +1781# See the TSQL "Querying data in a system-versioned temporal table" page +1782class SystemTime(Expression): +1783 arg_types = { +1784 "this": False, +1785 "expression": False, +1786 "kind": True, +1787 } +1788 +1789 +1790class Union(Subqueryable): +1791 arg_types = { +1792 "with": False, +1793 "this": True, +1794 "expression": True, +1795 "distinct": False, +1796 **QUERY_MODIFIERS, +1797 } +1798 +1799 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: +1800 """ +1801 Set the LIMIT expression. +1802 +1803 Example: +1804 >>> select("1").union(select("1")).limit(1).sql() +1805 'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1' +1806 +1807 Args: +1808 expression (str | int | Expression): the SQL code string to parse. +1809 This can also be an integer. +1810 If a `Limit` instance is passed, this is used as-is. +1811 If another `Expression` instance is passed, it will be wrapped in a `Limit`. +1812 dialect (str): the dialect used to parse the input expression. +1813 copy (bool): if `False`, modify this expression instance in-place. +1814 opts (kwargs): other options to use to parse the input expressions. +1815 +1816 Returns: +1817 Select: The limited subqueryable. +1818 """ +1819 return ( +1820 select("*") +1821 .from_(self.subquery(alias="_l_0", copy=copy)) +1822 .limit(expression, dialect=dialect, copy=False, **opts) +1823 ) +1824 +1825 def select( +1826 self, +1827 *expressions: str | Expression, +1828 append: bool = True, +1829 dialect: DialectType = None, +1830 copy: bool = True, +1831 **opts, +1832 ) -> Union: +1833 """Append to or set the SELECT of the union recursively. +1834 +1835 Example: +1836 >>> from sqlglot import parse_one +1837 >>> parse_one("select a from x union select a from y union select a from z").select("b").sql() +1838 'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z' +1839 +1840 Args: +1841 *expressions: the SQL code strings to parse. +1842 If an `Expression` instance is passed, it will be used as-is. +1843 append: if `True`, add to any existing expressions. +1844 Otherwise, this resets the expressions. +1845 dialect: the dialect used to parse the input expressions. +1846 copy: if `False`, modify this expression instance in-place. +1847 opts: other options to use to parse the input expressions. +1848 +1849 Returns: +1850 Union: the modified expression. +1851 """ +1852 this = self.copy() if copy else self +1853 this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts) +1854 this.expression.unnest().select( +1855 *expressions, append=append, dialect=dialect, copy=False, **opts +1856 ) +1857 return this +1858 +1859 @property +1860 def named_selects(self): +1861 return self.this.unnest().named_selects +1862 +1863 @property +1864 def is_star(self) -> bool: +1865 return self.this.is_star or self.expression.is_star +1866 +1867 @property +1868 def selects(self): +1869 return self.this.unnest().selects +1870 +1871 @property +1872 def left(self): +1873 return self.this +1874 +1875 @property +1876 def right(self): +1877 return self.expression +1878 +1879 +1880class Except(Union): +1881 pass +1882 +1883 +1884class Intersect(Union): +1885 pass +1886 +1887 +1888class Unnest(UDTF): +1889 arg_types = { +1890 "expressions": True, +1891 "ordinality": False, +1892 "alias": False, +1893 "offset": False, +1894 } +1895 +1896 +1897class Update(Expression): +1898 arg_types = { +1899 "with": False, +1900 "this": False, +1901 "expressions": True, +1902 "from": False, +1903 "where": False, +1904 "returning": False, +1905 } +1906 1907 -1908 -1909class Var(Expression): -1910 pass -1911 -1912 -1913class Schema(Expression): -1914 arg_types = {"this": False, "expressions": False} +1908class Values(UDTF): +1909 arg_types = { +1910 "expressions": True, +1911 "ordinality": False, +1912 "alias": False, +1913 } +1914 1915 -1916 -1917# Used to represent the FOR UPDATE and FOR SHARE locking read types. -1918# https://dev.mysql.com/doc/refman/8.0/en/innodb-locking-reads.html -1919class Lock(Expression): -1920 arg_types = {"update": True} -1921 +1916class Var(Expression): +1917 pass +1918 +1919 +1920class Schema(Expression): +1921 arg_types = {"this": False, "expressions": False} 1922 -1923class Select(Subqueryable): -1924 arg_types = { -1925 "with": False, -1926 "expressions": False, -1927 "hint": False, -1928 "distinct": False, -1929 "into": False, -1930 "from": False, -1931 **QUERY_MODIFIERS, -1932 } -1933 -1934 def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -1935 """ -1936 Set the FROM expression. -1937 -1938 Example: -1939 >>> Select().from_("tbl").select("x").sql() -1940 'SELECT x FROM tbl' -1941 -1942 Args: -1943 *expressions (str | Expression): the SQL code strings to parse. -1944 If a `From` instance is passed, this is used as-is. -1945 If another `Expression` instance is passed, it will be wrapped in a `From`. -1946 append (bool): if `True`, add to any existing expressions. -1947 Otherwise, this flattens all the `From` expression into a single expression. -1948 dialect (str): the dialect used to parse the input expression. -1949 copy (bool): if `False`, modify this expression instance in-place. -1950 opts (kwargs): other options to use to parse the input expressions. -1951 -1952 Returns: -1953 Select: the modified expression. -1954 """ -1955 return _apply_child_list_builder( -1956 *expressions, -1957 instance=self, -1958 arg="from", -1959 append=append, -1960 copy=copy, -1961 prefix="FROM", -1962 into=From, -1963 dialect=dialect, -1964 **opts, -1965 ) -1966 -1967 def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -1968 """ -1969 Set the GROUP BY expression. -1970 -1971 Example: -1972 >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql() -1973 'SELECT x, COUNT(1) FROM tbl GROUP BY x' -1974 -1975 Args: -1976 *expressions (str | Expression): the SQL code strings to parse. -1977 If a `Group` instance is passed, this is used as-is. -1978 If another `Expression` instance is passed, it will be wrapped in a `Group`. -1979 If nothing is passed in then a group by is not applied to the expression -1980 append (bool): if `True`, add to any existing expressions. -1981 Otherwise, this flattens all the `Group` expression into a single expression. -1982 dialect (str): the dialect used to parse the input expression. -1983 copy (bool): if `False`, modify this expression instance in-place. -1984 opts (kwargs): other options to use to parse the input expressions. -1985 -1986 Returns: -1987 Select: the modified expression. -1988 """ -1989 if not expressions: -1990 return self if not copy else self.copy() -1991 return _apply_child_list_builder( -1992 *expressions, -1993 instance=self, -1994 arg="group", -1995 append=append, -1996 copy=copy, -1997 prefix="GROUP BY", -1998 into=Group, -1999 dialect=dialect, -2000 **opts, -2001 ) -2002 -2003 def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2004 """ -2005 Set the ORDER BY expression. -2006 -2007 Example: -2008 >>> Select().from_("tbl").select("x").order_by("x DESC").sql() -2009 'SELECT x FROM tbl ORDER BY x DESC' -2010 -2011 Args: -2012 *expressions (str | Expression): the SQL code strings to parse. -2013 If a `Group` instance is passed, this is used as-is. -2014 If another `Expression` instance is passed, it will be wrapped in a `Order`. -2015 append (bool): if `True`, add to any existing expressions. -2016 Otherwise, this flattens all the `Order` expression into a single expression. -2017 dialect (str): the dialect used to parse the input expression. -2018 copy (bool): if `False`, modify this expression instance in-place. -2019 opts (kwargs): other options to use to parse the input expressions. -2020 -2021 Returns: -2022 Select: the modified expression. -2023 """ -2024 return _apply_child_list_builder( -2025 *expressions, -2026 instance=self, -2027 arg="order", -2028 append=append, -2029 copy=copy, -2030 prefix="ORDER BY", -2031 into=Order, -2032 dialect=dialect, -2033 **opts, -2034 ) -2035 -2036 def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2037 """ -2038 Set the SORT BY expression. -2039 -2040 Example: -2041 >>> Select().from_("tbl").select("x").sort_by("x DESC").sql() -2042 'SELECT x FROM tbl SORT BY x DESC' -2043 -2044 Args: -2045 *expressions (str | Expression): the SQL code strings to parse. -2046 If a `Group` instance is passed, this is used as-is. -2047 If another `Expression` instance is passed, it will be wrapped in a `SORT`. -2048 append (bool): if `True`, add to any existing expressions. -2049 Otherwise, this flattens all the `Order` expression into a single expression. -2050 dialect (str): the dialect used to parse the input expression. -2051 copy (bool): if `False`, modify this expression instance in-place. -2052 opts (kwargs): other options to use to parse the input expressions. -2053 -2054 Returns: -2055 Select: the modified expression. -2056 """ -2057 return _apply_child_list_builder( -2058 *expressions, -2059 instance=self, -2060 arg="sort", -2061 append=append, -2062 copy=copy, -2063 prefix="SORT BY", -2064 into=Sort, -2065 dialect=dialect, -2066 **opts, -2067 ) -2068 -2069 def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2070 """ -2071 Set the CLUSTER BY expression. -2072 -2073 Example: -2074 >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql() -2075 'SELECT x FROM tbl CLUSTER BY x DESC' -2076 -2077 Args: -2078 *expressions (str | Expression): the SQL code strings to parse. -2079 If a `Group` instance is passed, this is used as-is. -2080 If another `Expression` instance is passed, it will be wrapped in a `Cluster`. -2081 append (bool): if `True`, add to any existing expressions. -2082 Otherwise, this flattens all the `Order` expression into a single expression. -2083 dialect (str): the dialect used to parse the input expression. -2084 copy (bool): if `False`, modify this expression instance in-place. -2085 opts (kwargs): other options to use to parse the input expressions. -2086 -2087 Returns: -2088 Select: the modified expression. -2089 """ -2090 return _apply_child_list_builder( -2091 *expressions, -2092 instance=self, -2093 arg="cluster", -2094 append=append, -2095 copy=copy, -2096 prefix="CLUSTER BY", -2097 into=Cluster, -2098 dialect=dialect, -2099 **opts, -2100 ) -2101 -2102 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: -2103 """ -2104 Set the LIMIT expression. -2105 -2106 Example: -2107 >>> Select().from_("tbl").select("x").limit(10).sql() -2108 'SELECT x FROM tbl LIMIT 10' -2109 -2110 Args: -2111 expression (str | int | Expression): the SQL code string to parse. -2112 This can also be an integer. -2113 If a `Limit` instance is passed, this is used as-is. -2114 If another `Expression` instance is passed, it will be wrapped in a `Limit`. -2115 dialect (str): the dialect used to parse the input expression. -2116 copy (bool): if `False`, modify this expression instance in-place. -2117 opts (kwargs): other options to use to parse the input expressions. -2118 -2119 Returns: -2120 Select: the modified expression. -2121 """ -2122 return _apply_builder( -2123 expression=expression, -2124 instance=self, -2125 arg="limit", -2126 into=Limit, -2127 prefix="LIMIT", -2128 dialect=dialect, -2129 copy=copy, -2130 **opts, -2131 ) -2132 -2133 def offset(self, expression, dialect=None, copy=True, **opts) -> Select: -2134 """ -2135 Set the OFFSET expression. -2136 -2137 Example: -2138 >>> Select().from_("tbl").select("x").offset(10).sql() -2139 'SELECT x FROM tbl OFFSET 10' -2140 -2141 Args: -2142 expression (str | int | Expression): the SQL code string to parse. -2143 This can also be an integer. -2144 If a `Offset` instance is passed, this is used as-is. -2145 If another `Expression` instance is passed, it will be wrapped in a `Offset`. -2146 dialect (str): the dialect used to parse the input expression. -2147 copy (bool): if `False`, modify this expression instance in-place. -2148 opts (kwargs): other options to use to parse the input expressions. -2149 -2150 Returns: -2151 Select: the modified expression. -2152 """ -2153 return _apply_builder( -2154 expression=expression, -2155 instance=self, -2156 arg="offset", -2157 into=Offset, -2158 prefix="OFFSET", -2159 dialect=dialect, -2160 copy=copy, -2161 **opts, -2162 ) -2163 -2164 def select( -2165 self, -2166 *expressions: str | Expression, -2167 append: bool = True, -2168 dialect: DialectType = None, -2169 copy: bool = True, -2170 **opts, -2171 ) -> Select: -2172 """ -2173 Append to or set the SELECT expressions. -2174 -2175 Example: -2176 >>> Select().select("x", "y").sql() -2177 'SELECT x, y' -2178 -2179 Args: -2180 *expressions: the SQL code strings to parse. -2181 If an `Expression` instance is passed, it will be used as-is. -2182 append: if `True`, add to any existing expressions. -2183 Otherwise, this resets the expressions. -2184 dialect: the dialect used to parse the input expressions. -2185 copy: if `False`, modify this expression instance in-place. -2186 opts: other options to use to parse the input expressions. -2187 -2188 Returns: -2189 Select: the modified expression. -2190 """ -2191 return _apply_list_builder( -2192 *expressions, -2193 instance=self, -2194 arg="expressions", -2195 append=append, -2196 dialect=dialect, -2197 copy=copy, -2198 **opts, -2199 ) -2200 -2201 def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2202 """ -2203 Append to or set the LATERAL expressions. -2204 -2205 Example: -2206 >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql() -2207 'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z' -2208 -2209 Args: -2210 *expressions (str | Expression): the SQL code strings to parse. -2211 If an `Expression` instance is passed, it will be used as-is. -2212 append (bool): if `True`, add to any existing expressions. -2213 Otherwise, this resets the expressions. -2214 dialect (str): the dialect used to parse the input expressions. -2215 copy (bool): if `False`, modify this expression instance in-place. -2216 opts (kwargs): other options to use to parse the input expressions. -2217 -2218 Returns: -2219 Select: the modified expression. -2220 """ -2221 return _apply_list_builder( -2222 *expressions, -2223 instance=self, -2224 arg="laterals", -2225 append=append, -2226 into=Lateral, -2227 prefix="LATERAL VIEW", -2228 dialect=dialect, -2229 copy=copy, -2230 **opts, -2231 ) -2232 -2233 def join( -2234 self, -2235 expression, -2236 on=None, -2237 using=None, -2238 append=True, -2239 join_type=None, -2240 join_alias=None, -2241 dialect=None, -2242 copy=True, -2243 **opts, -2244 ) -> Select: -2245 """ -2246 Append to or set the JOIN expressions. -2247 -2248 Example: -2249 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql() -2250 'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y' -2251 -2252 >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql() -2253 'SELECT 1 FROM a JOIN b USING (x, y, z)' +1923 +1924# Used to represent the FOR UPDATE and FOR SHARE locking read types. +1925# https://dev.mysql.com/doc/refman/8.0/en/innodb-locking-reads.html +1926class Lock(Expression): +1927 arg_types = {"update": True} +1928 +1929 +1930class Select(Subqueryable): +1931 arg_types = { +1932 "with": False, +1933 "expressions": False, +1934 "hint": False, +1935 "distinct": False, +1936 "into": False, +1937 "from": False, +1938 **QUERY_MODIFIERS, +1939 } +1940 +1941 def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +1942 """ +1943 Set the FROM expression. +1944 +1945 Example: +1946 >>> Select().from_("tbl").select("x").sql() +1947 'SELECT x FROM tbl' +1948 +1949 Args: +1950 *expressions (str | Expression): the SQL code strings to parse. +1951 If a `From` instance is passed, this is used as-is. +1952 If another `Expression` instance is passed, it will be wrapped in a `From`. +1953 append (bool): if `True`, add to any existing expressions. +1954 Otherwise, this flattens all the `From` expression into a single expression. +1955 dialect (str): the dialect used to parse the input expression. +1956 copy (bool): if `False`, modify this expression instance in-place. +1957 opts (kwargs): other options to use to parse the input expressions. +1958 +1959 Returns: +1960 Select: the modified expression. +1961 """ +1962 return _apply_child_list_builder( +1963 *expressions, +1964 instance=self, +1965 arg="from", +1966 append=append, +1967 copy=copy, +1968 prefix="FROM", +1969 into=From, +1970 dialect=dialect, +1971 **opts, +1972 ) +1973 +1974 def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +1975 """ +1976 Set the GROUP BY expression. +1977 +1978 Example: +1979 >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql() +1980 'SELECT x, COUNT(1) FROM tbl GROUP BY x' +1981 +1982 Args: +1983 *expressions (str | Expression): the SQL code strings to parse. +1984 If a `Group` instance is passed, this is used as-is. +1985 If another `Expression` instance is passed, it will be wrapped in a `Group`. +1986 If nothing is passed in then a group by is not applied to the expression +1987 append (bool): if `True`, add to any existing expressions. +1988 Otherwise, this flattens all the `Group` expression into a single expression. +1989 dialect (str): the dialect used to parse the input expression. +1990 copy (bool): if `False`, modify this expression instance in-place. +1991 opts (kwargs): other options to use to parse the input expressions. +1992 +1993 Returns: +1994 Select: the modified expression. +1995 """ +1996 if not expressions: +1997 return self if not copy else self.copy() +1998 return _apply_child_list_builder( +1999 *expressions, +2000 instance=self, +2001 arg="group", +2002 append=append, +2003 copy=copy, +2004 prefix="GROUP BY", +2005 into=Group, +2006 dialect=dialect, +2007 **opts, +2008 ) +2009 +2010 def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2011 """ +2012 Set the ORDER BY expression. +2013 +2014 Example: +2015 >>> Select().from_("tbl").select("x").order_by("x DESC").sql() +2016 'SELECT x FROM tbl ORDER BY x DESC' +2017 +2018 Args: +2019 *expressions (str | Expression): the SQL code strings to parse. +2020 If a `Group` instance is passed, this is used as-is. +2021 If another `Expression` instance is passed, it will be wrapped in a `Order`. +2022 append (bool): if `True`, add to any existing expressions. +2023 Otherwise, this flattens all the `Order` expression into a single expression. +2024 dialect (str): the dialect used to parse the input expression. +2025 copy (bool): if `False`, modify this expression instance in-place. +2026 opts (kwargs): other options to use to parse the input expressions. +2027 +2028 Returns: +2029 Select: the modified expression. +2030 """ +2031 return _apply_child_list_builder( +2032 *expressions, +2033 instance=self, +2034 arg="order", +2035 append=append, +2036 copy=copy, +2037 prefix="ORDER BY", +2038 into=Order, +2039 dialect=dialect, +2040 **opts, +2041 ) +2042 +2043 def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2044 """ +2045 Set the SORT BY expression. +2046 +2047 Example: +2048 >>> Select().from_("tbl").select("x").sort_by("x DESC").sql() +2049 'SELECT x FROM tbl SORT BY x DESC' +2050 +2051 Args: +2052 *expressions (str | Expression): the SQL code strings to parse. +2053 If a `Group` instance is passed, this is used as-is. +2054 If another `Expression` instance is passed, it will be wrapped in a `SORT`. +2055 append (bool): if `True`, add to any existing expressions. +2056 Otherwise, this flattens all the `Order` expression into a single expression. +2057 dialect (str): the dialect used to parse the input expression. +2058 copy (bool): if `False`, modify this expression instance in-place. +2059 opts (kwargs): other options to use to parse the input expressions. +2060 +2061 Returns: +2062 Select: the modified expression. +2063 """ +2064 return _apply_child_list_builder( +2065 *expressions, +2066 instance=self, +2067 arg="sort", +2068 append=append, +2069 copy=copy, +2070 prefix="SORT BY", +2071 into=Sort, +2072 dialect=dialect, +2073 **opts, +2074 ) +2075 +2076 def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2077 """ +2078 Set the CLUSTER BY expression. +2079 +2080 Example: +2081 >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql() +2082 'SELECT x FROM tbl CLUSTER BY x DESC' +2083 +2084 Args: +2085 *expressions (str | Expression): the SQL code strings to parse. +2086 If a `Group` instance is passed, this is used as-is. +2087 If another `Expression` instance is passed, it will be wrapped in a `Cluster`. +2088 append (bool): if `True`, add to any existing expressions. +2089 Otherwise, this flattens all the `Order` expression into a single expression. +2090 dialect (str): the dialect used to parse the input expression. +2091 copy (bool): if `False`, modify this expression instance in-place. +2092 opts (kwargs): other options to use to parse the input expressions. +2093 +2094 Returns: +2095 Select: the modified expression. +2096 """ +2097 return _apply_child_list_builder( +2098 *expressions, +2099 instance=self, +2100 arg="cluster", +2101 append=append, +2102 copy=copy, +2103 prefix="CLUSTER BY", +2104 into=Cluster, +2105 dialect=dialect, +2106 **opts, +2107 ) +2108 +2109 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: +2110 """ +2111 Set the LIMIT expression. +2112 +2113 Example: +2114 >>> Select().from_("tbl").select("x").limit(10).sql() +2115 'SELECT x FROM tbl LIMIT 10' +2116 +2117 Args: +2118 expression (str | int | Expression): the SQL code string to parse. +2119 This can also be an integer. +2120 If a `Limit` instance is passed, this is used as-is. +2121 If another `Expression` instance is passed, it will be wrapped in a `Limit`. +2122 dialect (str): the dialect used to parse the input expression. +2123 copy (bool): if `False`, modify this expression instance in-place. +2124 opts (kwargs): other options to use to parse the input expressions. +2125 +2126 Returns: +2127 Select: the modified expression. +2128 """ +2129 return _apply_builder( +2130 expression=expression, +2131 instance=self, +2132 arg="limit", +2133 into=Limit, +2134 prefix="LIMIT", +2135 dialect=dialect, +2136 copy=copy, +2137 **opts, +2138 ) +2139 +2140 def offset(self, expression, dialect=None, copy=True, **opts) -> Select: +2141 """ +2142 Set the OFFSET expression. +2143 +2144 Example: +2145 >>> Select().from_("tbl").select("x").offset(10).sql() +2146 'SELECT x FROM tbl OFFSET 10' +2147 +2148 Args: +2149 expression (str | int | Expression): the SQL code string to parse. +2150 This can also be an integer. +2151 If a `Offset` instance is passed, this is used as-is. +2152 If another `Expression` instance is passed, it will be wrapped in a `Offset`. +2153 dialect (str): the dialect used to parse the input expression. +2154 copy (bool): if `False`, modify this expression instance in-place. +2155 opts (kwargs): other options to use to parse the input expressions. +2156 +2157 Returns: +2158 Select: the modified expression. +2159 """ +2160 return _apply_builder( +2161 expression=expression, +2162 instance=self, +2163 arg="offset", +2164 into=Offset, +2165 prefix="OFFSET", +2166 dialect=dialect, +2167 copy=copy, +2168 **opts, +2169 ) +2170 +2171 def select( +2172 self, +2173 *expressions: str | Expression, +2174 append: bool = True, +2175 dialect: DialectType = None, +2176 copy: bool = True, +2177 **opts, +2178 ) -> Select: +2179 """ +2180 Append to or set the SELECT expressions. +2181 +2182 Example: +2183 >>> Select().select("x", "y").sql() +2184 'SELECT x, y' +2185 +2186 Args: +2187 *expressions: the SQL code strings to parse. +2188 If an `Expression` instance is passed, it will be used as-is. +2189 append: if `True`, add to any existing expressions. +2190 Otherwise, this resets the expressions. +2191 dialect: the dialect used to parse the input expressions. +2192 copy: if `False`, modify this expression instance in-place. +2193 opts: other options to use to parse the input expressions. +2194 +2195 Returns: +2196 Select: the modified expression. +2197 """ +2198 return _apply_list_builder( +2199 *expressions, +2200 instance=self, +2201 arg="expressions", +2202 append=append, +2203 dialect=dialect, +2204 copy=copy, +2205 **opts, +2206 ) +2207 +2208 def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2209 """ +2210 Append to or set the LATERAL expressions. +2211 +2212 Example: +2213 >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql() +2214 'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z' +2215 +2216 Args: +2217 *expressions (str | Expression): the SQL code strings to parse. +2218 If an `Expression` instance is passed, it will be used as-is. +2219 append (bool): if `True`, add to any existing expressions. +2220 Otherwise, this resets the expressions. +2221 dialect (str): the dialect used to parse the input expressions. +2222 copy (bool): if `False`, modify this expression instance in-place. +2223 opts (kwargs): other options to use to parse the input expressions. +2224 +2225 Returns: +2226 Select: the modified expression. +2227 """ +2228 return _apply_list_builder( +2229 *expressions, +2230 instance=self, +2231 arg="laterals", +2232 append=append, +2233 into=Lateral, +2234 prefix="LATERAL VIEW", +2235 dialect=dialect, +2236 copy=copy, +2237 **opts, +2238 ) +2239 +2240 def join( +2241 self, +2242 expression, +2243 on=None, +2244 using=None, +2245 append=True, +2246 join_type=None, +2247 join_alias=None, +2248 dialect=None, +2249 copy=True, +2250 **opts, +2251 ) -> Select: +2252 """ +2253 Append to or set the JOIN expressions. 2254 -2255 Use `join_type` to change the type of join: -2256 -2257 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql() -2258 'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y' -2259 -2260 Args: -2261 expression (str | Expression): the SQL code string to parse. -2262 If an `Expression` instance is passed, it will be used as-is. -2263 on (str | Expression): optionally specify the join "on" criteria as a SQL string. -2264 If an `Expression` instance is passed, it will be used as-is. -2265 using (str | Expression): optionally specify the join "using" criteria as a SQL string. -2266 If an `Expression` instance is passed, it will be used as-is. -2267 append (bool): if `True`, add to any existing expressions. -2268 Otherwise, this resets the expressions. -2269 join_type (str): If set, alter the parsed join type -2270 dialect (str): the dialect used to parse the input expressions. -2271 copy (bool): if `False`, modify this expression instance in-place. -2272 opts (kwargs): other options to use to parse the input expressions. -2273 -2274 Returns: -2275 Select: the modified expression. -2276 """ -2277 parse_args = {"dialect": dialect, **opts} -2278 -2279 try: -2280 expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args) -2281 except ParseError: -2282 expression = maybe_parse(expression, into=(Join, Expression), **parse_args) -2283 -2284 join = expression if isinstance(expression, Join) else Join(this=expression) +2255 Example: +2256 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql() +2257 'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y' +2258 +2259 >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql() +2260 'SELECT 1 FROM a JOIN b USING (x, y, z)' +2261 +2262 Use `join_type` to change the type of join: +2263 +2264 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql() +2265 'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y' +2266 +2267 Args: +2268 expression (str | Expression): the SQL code string to parse. +2269 If an `Expression` instance is passed, it will be used as-is. +2270 on (str | Expression): optionally specify the join "on" criteria as a SQL string. +2271 If an `Expression` instance is passed, it will be used as-is. +2272 using (str | Expression): optionally specify the join "using" criteria as a SQL string. +2273 If an `Expression` instance is passed, it will be used as-is. +2274 append (bool): if `True`, add to any existing expressions. +2275 Otherwise, this resets the expressions. +2276 join_type (str): If set, alter the parsed join type +2277 dialect (str): the dialect used to parse the input expressions. +2278 copy (bool): if `False`, modify this expression instance in-place. +2279 opts (kwargs): other options to use to parse the input expressions. +2280 +2281 Returns: +2282 Select: the modified expression. +2283 """ +2284 parse_args = {"dialect": dialect, **opts} 2285 -2286 if isinstance(join.this, Select): -2287 join.this.replace(join.this.subquery()) -2288 -2289 if join_type: -2290 natural: t.Optional[Token] -2291 side: t.Optional[Token] -2292 kind: t.Optional[Token] -2293 -2294 natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args) # type: ignore +2286 try: +2287 expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args) +2288 except ParseError: +2289 expression = maybe_parse(expression, into=(Join, Expression), **parse_args) +2290 +2291 join = expression if isinstance(expression, Join) else Join(this=expression) +2292 +2293 if isinstance(join.this, Select): +2294 join.this.replace(join.this.subquery()) 2295 -2296 if natural: -2297 join.set("natural", True) -2298 if side: -2299 join.set("side", side.text) -2300 if kind: -2301 join.set("kind", kind.text) +2296 if join_type: +2297 natural: t.Optional[Token] +2298 side: t.Optional[Token] +2299 kind: t.Optional[Token] +2300 +2301 natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args) # type: ignore 2302 -2303 if on: -2304 on = and_(*ensure_collection(on), dialect=dialect, **opts) -2305 join.set("on", on) -2306 -2307 if using: -2308 join = _apply_list_builder( -2309 *ensure_collection(using), -2310 instance=join, -2311 arg="using", -2312 append=append, -2313 copy=copy, -2314 **opts, -2315 ) -2316 -2317 if join_alias: -2318 join.set("this", alias_(join.this, join_alias, table=True)) -2319 return _apply_list_builder( -2320 join, -2321 instance=self, -2322 arg="joins", -2323 append=append, -2324 copy=copy, -2325 **opts, -2326 ) -2327 -2328 def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2329 """ -2330 Append to or set the WHERE expressions. -2331 -2332 Example: -2333 >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql() -2334 "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'" -2335 -2336 Args: -2337 *expressions (str | Expression): the SQL code strings to parse. -2338 If an `Expression` instance is passed, it will be used as-is. -2339 Multiple expressions are combined with an AND operator. -2340 append (bool): if `True`, AND the new expressions to any existing expression. -2341 Otherwise, this resets the expression. -2342 dialect (str): the dialect used to parse the input expressions. -2343 copy (bool): if `False`, modify this expression instance in-place. -2344 opts (kwargs): other options to use to parse the input expressions. -2345 -2346 Returns: -2347 Select: the modified expression. -2348 """ -2349 return _apply_conjunction_builder( -2350 *expressions, -2351 instance=self, -2352 arg="where", -2353 append=append, -2354 into=Where, -2355 dialect=dialect, -2356 copy=copy, -2357 **opts, -2358 ) -2359 -2360 def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2361 """ -2362 Append to or set the HAVING expressions. -2363 -2364 Example: -2365 >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql() -2366 'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3' -2367 -2368 Args: -2369 *expressions (str | Expression): the SQL code strings to parse. -2370 If an `Expression` instance is passed, it will be used as-is. -2371 Multiple expressions are combined with an AND operator. -2372 append (bool): if `True`, AND the new expressions to any existing expression. -2373 Otherwise, this resets the expression. -2374 dialect (str): the dialect used to parse the input expressions. -2375 copy (bool): if `False`, modify this expression instance in-place. -2376 opts (kwargs): other options to use to parse the input expressions. -2377 -2378 Returns: -2379 Select: the modified expression. -2380 """ -2381 return _apply_conjunction_builder( -2382 *expressions, -2383 instance=self, -2384 arg="having", -2385 append=append, -2386 into=Having, -2387 dialect=dialect, -2388 copy=copy, -2389 **opts, -2390 ) -2391 -2392 def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2393 return _apply_list_builder( -2394 *expressions, -2395 instance=self, -2396 arg="windows", -2397 append=append, -2398 into=Window, -2399 dialect=dialect, -2400 copy=copy, -2401 **opts, -2402 ) -2403 -2404 def distinct(self, distinct=True, copy=True) -> Select: -2405 """ -2406 Set the OFFSET expression. -2407 -2408 Example: -2409 >>> Select().from_("tbl").select("x").distinct().sql() -2410 'SELECT DISTINCT x FROM tbl' -2411 -2412 Args: -2413 distinct (bool): whether the Select should be distinct -2414 copy (bool): if `False`, modify this expression instance in-place. -2415 -2416 Returns: -2417 Select: the modified expression. -2418 """ -2419 instance = _maybe_copy(self, copy) -2420 instance.set("distinct", Distinct() if distinct else None) -2421 return instance +2303 if natural: +2304 join.set("natural", True) +2305 if side: +2306 join.set("side", side.text) +2307 if kind: +2308 join.set("kind", kind.text) +2309 +2310 if on: +2311 on = and_(*ensure_collection(on), dialect=dialect, **opts) +2312 join.set("on", on) +2313 +2314 if using: +2315 join = _apply_list_builder( +2316 *ensure_collection(using), +2317 instance=join, +2318 arg="using", +2319 append=append, +2320 copy=copy, +2321 **opts, +2322 ) +2323 +2324 if join_alias: +2325 join.set("this", alias_(join.this, join_alias, table=True)) +2326 return _apply_list_builder( +2327 join, +2328 instance=self, +2329 arg="joins", +2330 append=append, +2331 copy=copy, +2332 **opts, +2333 ) +2334 +2335 def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2336 """ +2337 Append to or set the WHERE expressions. +2338 +2339 Example: +2340 >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql() +2341 "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'" +2342 +2343 Args: +2344 *expressions (str | Expression): the SQL code strings to parse. +2345 If an `Expression` instance is passed, it will be used as-is. +2346 Multiple expressions are combined with an AND operator. +2347 append (bool): if `True`, AND the new expressions to any existing expression. +2348 Otherwise, this resets the expression. +2349 dialect (str): the dialect used to parse the input expressions. +2350 copy (bool): if `False`, modify this expression instance in-place. +2351 opts (kwargs): other options to use to parse the input expressions. +2352 +2353 Returns: +2354 Select: the modified expression. +2355 """ +2356 return _apply_conjunction_builder( +2357 *expressions, +2358 instance=self, +2359 arg="where", +2360 append=append, +2361 into=Where, +2362 dialect=dialect, +2363 copy=copy, +2364 **opts, +2365 ) +2366 +2367 def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2368 """ +2369 Append to or set the HAVING expressions. +2370 +2371 Example: +2372 >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql() +2373 'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3' +2374 +2375 Args: +2376 *expressions (str | Expression): the SQL code strings to parse. +2377 If an `Expression` instance is passed, it will be used as-is. +2378 Multiple expressions are combined with an AND operator. +2379 append (bool): if `True`, AND the new expressions to any existing expression. +2380 Otherwise, this resets the expression. +2381 dialect (str): the dialect used to parse the input expressions. +2382 copy (bool): if `False`, modify this expression instance in-place. +2383 opts (kwargs): other options to use to parse the input expressions. +2384 +2385 Returns: +2386 Select: the modified expression. +2387 """ +2388 return _apply_conjunction_builder( +2389 *expressions, +2390 instance=self, +2391 arg="having", +2392 append=append, +2393 into=Having, +2394 dialect=dialect, +2395 copy=copy, +2396 **opts, +2397 ) +2398 +2399 def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2400 return _apply_list_builder( +2401 *expressions, +2402 instance=self, +2403 arg="windows", +2404 append=append, +2405 into=Window, +2406 dialect=dialect, +2407 copy=copy, +2408 **opts, +2409 ) +2410 +2411 def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2412 return _apply_conjunction_builder( +2413 *expressions, +2414 instance=self, +2415 arg="qualify", +2416 append=append, +2417 into=Qualify, +2418 dialect=dialect, +2419 copy=copy, +2420 **opts, +2421 ) 2422 -2423 def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create: +2423 def distinct(self, distinct=True, copy=True) -> Select: 2424 """ -2425 Convert this expression to a CREATE TABLE AS statement. +2425 Set the OFFSET expression. 2426 2427 Example: -2428 >>> Select().select("*").from_("tbl").ctas("x").sql() -2429 'CREATE TABLE x AS SELECT * FROM tbl' +2428 >>> Select().from_("tbl").select("x").distinct().sql() +2429 'SELECT DISTINCT x FROM tbl' 2430 2431 Args: -2432 table (str | Expression): the SQL code string to parse as the table name. -2433 If another `Expression` instance is passed, it will be used as-is. -2434 properties (dict): an optional mapping of table properties -2435 dialect (str): the dialect used to parse the input table. -2436 copy (bool): if `False`, modify this expression instance in-place. -2437 opts (kwargs): other options to use to parse the input table. -2438 -2439 Returns: -2440 Create: the CREATE TABLE AS expression -2441 """ -2442 instance = _maybe_copy(self, copy) -2443 table_expression = maybe_parse( -2444 table, -2445 into=Table, -2446 dialect=dialect, -2447 **opts, -2448 ) -2449 properties_expression = None -2450 if properties: -2451 properties_expression = Properties.from_dict(properties) -2452 -2453 return Create( -2454 this=table_expression, -2455 kind="table", -2456 expression=instance, -2457 properties=properties_expression, -2458 ) -2459 -2460 def lock(self, update: bool = True, copy: bool = True) -> Select: -2461 """ -2462 Set the locking read mode for this expression. -2463 -2464 Examples: -2465 >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql") -2466 "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE" -2467 -2468 >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql") -2469 "SELECT x FROM tbl WHERE x = 'a' FOR SHARE" -2470 -2471 Args: -2472 update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`. -2473 copy: if `False`, modify this expression instance in-place. -2474 -2475 Returns: -2476 The modified expression. -2477 """ +2432 distinct (bool): whether the Select should be distinct +2433 copy (bool): if `False`, modify this expression instance in-place. +2434 +2435 Returns: +2436 Select: the modified expression. +2437 """ +2438 instance = _maybe_copy(self, copy) +2439 instance.set("distinct", Distinct() if distinct else None) +2440 return instance +2441 +2442 def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create: +2443 """ +2444 Convert this expression to a CREATE TABLE AS statement. +2445 +2446 Example: +2447 >>> Select().select("*").from_("tbl").ctas("x").sql() +2448 'CREATE TABLE x AS SELECT * FROM tbl' +2449 +2450 Args: +2451 table (str | Expression): the SQL code string to parse as the table name. +2452 If another `Expression` instance is passed, it will be used as-is. +2453 properties (dict): an optional mapping of table properties +2454 dialect (str): the dialect used to parse the input table. +2455 copy (bool): if `False`, modify this expression instance in-place. +2456 opts (kwargs): other options to use to parse the input table. +2457 +2458 Returns: +2459 Create: the CREATE TABLE AS expression +2460 """ +2461 instance = _maybe_copy(self, copy) +2462 table_expression = maybe_parse( +2463 table, +2464 into=Table, +2465 dialect=dialect, +2466 **opts, +2467 ) +2468 properties_expression = None +2469 if properties: +2470 properties_expression = Properties.from_dict(properties) +2471 +2472 return Create( +2473 this=table_expression, +2474 kind="table", +2475 expression=instance, +2476 properties=properties_expression, +2477 ) 2478 -2479 inst = _maybe_copy(self, copy) -2480 inst.set("lock", Lock(update=update)) -2481 -2482 return inst -2483 -2484 @property -2485 def named_selects(self) -> t.List[str]: -2486 return [e.output_name for e in self.expressions if e.alias_or_name] -2487 -2488 @property -2489 def is_star(self) -> bool: -2490 return any(expression.is_star for expression in self.expressions) -2491 -2492 @property -2493 def selects(self) -> t.List[Expression]: -2494 return self.expressions -2495 -2496 -2497class Subquery(DerivedTable, Unionable): -2498 arg_types = { -2499 "this": True, -2500 "alias": False, -2501 "with": False, -2502 **QUERY_MODIFIERS, -2503 } -2504 -2505 def unnest(self): -2506 """ -2507 Returns the first non subquery. -2508 """ -2509 expression = self -2510 while isinstance(expression, Subquery): -2511 expression = expression.this -2512 return expression -2513 -2514 @property -2515 def is_star(self) -> bool: -2516 return self.this.is_star -2517 -2518 @property -2519 def output_name(self): -2520 return self.alias -2521 -2522 -2523class TableSample(Expression): -2524 arg_types = { -2525 "this": False, -2526 "method": False, -2527 "bucket_numerator": False, -2528 "bucket_denominator": False, -2529 "bucket_field": False, -2530 "percent": False, -2531 "rows": False, -2532 "size": False, -2533 "seed": False, -2534 } -2535 +2479 def lock(self, update: bool = True, copy: bool = True) -> Select: +2480 """ +2481 Set the locking read mode for this expression. +2482 +2483 Examples: +2484 >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql") +2485 "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE" +2486 +2487 >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql") +2488 "SELECT x FROM tbl WHERE x = 'a' FOR SHARE" +2489 +2490 Args: +2491 update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`. +2492 copy: if `False`, modify this expression instance in-place. +2493 +2494 Returns: +2495 The modified expression. +2496 """ +2497 +2498 inst = _maybe_copy(self, copy) +2499 inst.set("lock", Lock(update=update)) +2500 +2501 return inst +2502 +2503 @property +2504 def named_selects(self) -> t.List[str]: +2505 return [e.output_name for e in self.expressions if e.alias_or_name] +2506 +2507 @property +2508 def is_star(self) -> bool: +2509 return any(expression.is_star for expression in self.expressions) +2510 +2511 @property +2512 def selects(self) -> t.List[Expression]: +2513 return self.expressions +2514 +2515 +2516class Subquery(DerivedTable, Unionable): +2517 arg_types = { +2518 "this": True, +2519 "alias": False, +2520 "with": False, +2521 **QUERY_MODIFIERS, +2522 } +2523 +2524 def unnest(self): +2525 """ +2526 Returns the first non subquery. +2527 """ +2528 expression = self +2529 while isinstance(expression, Subquery): +2530 expression = expression.this +2531 return expression +2532 +2533 @property +2534 def is_star(self) -> bool: +2535 return self.this.is_star 2536 -2537class Tag(Expression): -2538 """Tags are used for generating arbitrary sql like SELECT <span>x</span>.""" -2539 -2540 arg_types = { -2541 "this": False, -2542 "prefix": False, -2543 "postfix": False, -2544 } -2545 -2546 -2547class Pivot(Expression): -2548 arg_types = { -2549 "this": False, -2550 "alias": False, -2551 "expressions": True, -2552 "field": True, -2553 "unpivot": True, +2537 @property +2538 def output_name(self): +2539 return self.alias +2540 +2541 +2542class TableSample(Expression): +2543 arg_types = { +2544 "this": False, +2545 "method": False, +2546 "bucket_numerator": False, +2547 "bucket_denominator": False, +2548 "bucket_field": False, +2549 "percent": False, +2550 "rows": False, +2551 "size": False, +2552 "seed": False, +2553 "kind": False, 2554 } 2555 2556 -2557class Window(Expression): -2558 arg_types = { -2559 "this": True, -2560 "partition_by": False, -2561 "order": False, -2562 "spec": False, -2563 "alias": False, +2557class Tag(Expression): +2558 """Tags are used for generating arbitrary sql like SELECT <span>x</span>.""" +2559 +2560 arg_types = { +2561 "this": False, +2562 "prefix": False, +2563 "postfix": False, 2564 } 2565 2566 -2567class WindowSpec(Expression): +2567class Pivot(Expression): 2568 arg_types = { -2569 "kind": False, -2570 "start": False, -2571 "start_side": False, -2572 "end": False, -2573 "end_side": False, +2569 "this": False, +2570 "alias": False, +2571 "expressions": True, +2572 "field": True, +2573 "unpivot": True, 2574 } 2575 2576 -2577class Where(Expression): -2578 pass -2579 -2580 -2581class Star(Expression): -2582 arg_types = {"except": False, "replace": False} -2583 -2584 @property -2585 def name(self) -> str: -2586 return "*" -2587 -2588 @property -2589 def output_name(self): -2590 return self.name -2591 -2592 -2593class Parameter(Expression): -2594 arg_types = {"this": True, "wrapped": False} +2577class Window(Expression): +2578 arg_types = { +2579 "this": True, +2580 "partition_by": False, +2581 "order": False, +2582 "spec": False, +2583 "alias": False, +2584 } +2585 +2586 +2587class WindowSpec(Expression): +2588 arg_types = { +2589 "kind": False, +2590 "start": False, +2591 "start_side": False, +2592 "end": False, +2593 "end_side": False, +2594 } 2595 2596 -2597class SessionParameter(Expression): -2598 arg_types = {"this": True, "kind": False} +2597class Where(Expression): +2598 pass 2599 2600 -2601class Placeholder(Expression): -2602 arg_types = {"this": False} +2601class Star(Expression): +2602 arg_types = {"except": False, "replace": False} 2603 -2604 -2605class Null(Condition): -2606 arg_types: t.Dict[str, t.Any] = {} +2604 @property +2605 def name(self) -> str: +2606 return "*" 2607 2608 @property -2609 def name(self) -> str: -2610 return "NULL" +2609 def output_name(self): +2610 return self.name 2611 2612 -2613class Boolean(Condition): -2614 pass +2613class Parameter(Expression): +2614 arg_types = {"this": True, "wrapped": False} 2615 2616 -2617class DataType(Expression): -2618 arg_types = { -2619 "this": True, -2620 "expressions": False, -2621 "nested": False, -2622 "values": False, -2623 "prefix": False, -2624 } -2625 -2626 class Type(AutoName): -2627 CHAR = auto() -2628 NCHAR = auto() -2629 VARCHAR = auto() -2630 NVARCHAR = auto() -2631 TEXT = auto() -2632 MEDIUMTEXT = auto() -2633 LONGTEXT = auto() -2634 MEDIUMBLOB = auto() -2635 LONGBLOB = auto() -2636 BINARY = auto() -2637 VARBINARY = auto() -2638 INT = auto() -2639 TINYINT = auto() -2640 SMALLINT = auto() -2641 BIGINT = auto() -2642 FLOAT = auto() -2643 DOUBLE = auto() -2644 DECIMAL = auto() -2645 BOOLEAN = auto() -2646 JSON = auto() -2647 JSONB = auto() -2648 INTERVAL = auto() -2649 TIME = auto() -2650 TIMESTAMP = auto() -2651 TIMESTAMPTZ = auto() -2652 TIMESTAMPLTZ = auto() -2653 DATE = auto() -2654 DATETIME = auto() -2655 ARRAY = auto() -2656 MAP = auto() -2657 UUID = auto() -2658 GEOGRAPHY = auto() -2659 GEOMETRY = auto() -2660 STRUCT = auto() -2661 NULLABLE = auto() -2662 HLLSKETCH = auto() -2663 HSTORE = auto() -2664 SUPER = auto() -2665 SERIAL = auto() -2666 SMALLSERIAL = auto() -2667 BIGSERIAL = auto() -2668 XML = auto() -2669 UNIQUEIDENTIFIER = auto() -2670 MONEY = auto() -2671 SMALLMONEY = auto() -2672 ROWVERSION = auto() -2673 IMAGE = auto() -2674 VARIANT = auto() -2675 OBJECT = auto() -2676 INET = auto() -2677 NULL = auto() -2678 UNKNOWN = auto() # Sentinel value, useful for type annotation -2679 -2680 TEXT_TYPES = { -2681 Type.CHAR, -2682 Type.NCHAR, -2683 Type.VARCHAR, -2684 Type.NVARCHAR, -2685 Type.TEXT, -2686 } -2687 -2688 INTEGER_TYPES = { -2689 Type.INT, -2690 Type.TINYINT, -2691 Type.SMALLINT, -2692 Type.BIGINT, -2693 } -2694 -2695 FLOAT_TYPES = { -2696 Type.FLOAT, -2697 Type.DOUBLE, -2698 } +2617class SessionParameter(Expression): +2618 arg_types = {"this": True, "kind": False} +2619 +2620 +2621class Placeholder(Expression): +2622 arg_types = {"this": False} +2623 +2624 +2625class Null(Condition): +2626 arg_types: t.Dict[str, t.Any] = {} +2627 +2628 @property +2629 def name(self) -> str: +2630 return "NULL" +2631 +2632 +2633class Boolean(Condition): +2634 pass +2635 +2636 +2637class DataType(Expression): +2638 arg_types = { +2639 "this": True, +2640 "expressions": False, +2641 "nested": False, +2642 "values": False, +2643 "prefix": False, +2644 } +2645 +2646 class Type(AutoName): +2647 CHAR = auto() +2648 NCHAR = auto() +2649 VARCHAR = auto() +2650 NVARCHAR = auto() +2651 TEXT = auto() +2652 MEDIUMTEXT = auto() +2653 LONGTEXT = auto() +2654 MEDIUMBLOB = auto() +2655 LONGBLOB = auto() +2656 BINARY = auto() +2657 VARBINARY = auto() +2658 INT = auto() +2659 TINYINT = auto() +2660 SMALLINT = auto() +2661 BIGINT = auto() +2662 FLOAT = auto() +2663 DOUBLE = auto() +2664 DECIMAL = auto() +2665 BOOLEAN = auto() +2666 JSON = auto() +2667 JSONB = auto() +2668 INTERVAL = auto() +2669 TIME = auto() +2670 TIMESTAMP = auto() +2671 TIMESTAMPTZ = auto() +2672 TIMESTAMPLTZ = auto() +2673 DATE = auto() +2674 DATETIME = auto() +2675 ARRAY = auto() +2676 MAP = auto() +2677 UUID = auto() +2678 GEOGRAPHY = auto() +2679 GEOMETRY = auto() +2680 STRUCT = auto() +2681 NULLABLE = auto() +2682 HLLSKETCH = auto() +2683 HSTORE = auto() +2684 SUPER = auto() +2685 SERIAL = auto() +2686 SMALLSERIAL = auto() +2687 BIGSERIAL = auto() +2688 XML = auto() +2689 UNIQUEIDENTIFIER = auto() +2690 MONEY = auto() +2691 SMALLMONEY = auto() +2692 ROWVERSION = auto() +2693 IMAGE = auto() +2694 VARIANT = auto() +2695 OBJECT = auto() +2696 INET = auto() +2697 NULL = auto() +2698 UNKNOWN = auto() # Sentinel value, useful for type annotation 2699 -2700 NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES} -2701 -2702 TEMPORAL_TYPES = { -2703 Type.TIMESTAMP, -2704 Type.TIMESTAMPTZ, -2705 Type.TIMESTAMPLTZ, -2706 Type.DATE, -2707 Type.DATETIME, -2708 } -2709 -2710 @classmethod -2711 def build( -2712 cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs -2713 ) -> DataType: -2714 from sqlglot import parse_one -2715 -2716 if isinstance(dtype, str): -2717 if dtype.upper() in cls.Type.__members__: -2718 data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()]) -2719 else: -2720 data_type_exp = parse_one(dtype, read=dialect, into=DataType) -2721 if data_type_exp is None: -2722 raise ValueError(f"Unparsable data type value: {dtype}") -2723 elif isinstance(dtype, DataType.Type): -2724 data_type_exp = DataType(this=dtype) -2725 elif isinstance(dtype, DataType): -2726 return dtype -2727 else: -2728 raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type") -2729 return DataType(**{**data_type_exp.args, **kwargs}) -2730 -2731 def is_type(self, dtype: DataType.Type) -> bool: -2732 return self.this == dtype -2733 -2734 -2735# https://www.postgresql.org/docs/15/datatype-pseudo.html -2736class PseudoType(Expression): -2737 pass -2738 -2739 -2740class StructKwarg(Expression): -2741 arg_types = {"this": True, "expression": True} -2742 -2743 -2744# WHERE x <OP> EXISTS|ALL|ANY|SOME(SELECT ...) -2745class SubqueryPredicate(Predicate): -2746 pass -2747 -2748 -2749class All(SubqueryPredicate): -2750 pass -2751 -2752 -2753class Any(SubqueryPredicate): -2754 pass -2755 -2756 -2757class Exists(SubqueryPredicate): -2758 pass +2700 TEXT_TYPES = { +2701 Type.CHAR, +2702 Type.NCHAR, +2703 Type.VARCHAR, +2704 Type.NVARCHAR, +2705 Type.TEXT, +2706 } +2707 +2708 INTEGER_TYPES = { +2709 Type.INT, +2710 Type.TINYINT, +2711 Type.SMALLINT, +2712 Type.BIGINT, +2713 } +2714 +2715 FLOAT_TYPES = { +2716 Type.FLOAT, +2717 Type.DOUBLE, +2718 } +2719 +2720 NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES} +2721 +2722 TEMPORAL_TYPES = { +2723 Type.TIMESTAMP, +2724 Type.TIMESTAMPTZ, +2725 Type.TIMESTAMPLTZ, +2726 Type.DATE, +2727 Type.DATETIME, +2728 } +2729 +2730 @classmethod +2731 def build( +2732 cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs +2733 ) -> DataType: +2734 from sqlglot import parse_one +2735 +2736 if isinstance(dtype, str): +2737 if dtype.upper() in cls.Type.__members__: +2738 data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()]) +2739 else: +2740 data_type_exp = parse_one(dtype, read=dialect, into=DataType) +2741 if data_type_exp is None: +2742 raise ValueError(f"Unparsable data type value: {dtype}") +2743 elif isinstance(dtype, DataType.Type): +2744 data_type_exp = DataType(this=dtype) +2745 elif isinstance(dtype, DataType): +2746 return dtype +2747 else: +2748 raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type") +2749 return DataType(**{**data_type_exp.args, **kwargs}) +2750 +2751 def is_type(self, dtype: DataType.Type) -> bool: +2752 return self.this == dtype +2753 +2754 +2755# https://www.postgresql.org/docs/15/datatype-pseudo.html +2756class PseudoType(Expression): +2757 pass +2758 2759 -2760 -2761# Commands to interact with the databases or engines. For most of the command -2762# expressions we parse whatever comes after the command's name as a string. -2763class Command(Expression): -2764 arg_types = {"this": True, "expression": False} -2765 -2766 -2767class Transaction(Expression): -2768 arg_types = {"this": False, "modes": False} -2769 -2770 -2771class Commit(Expression): -2772 arg_types = {"chain": False} -2773 -2774 -2775class Rollback(Expression): -2776 arg_types = {"savepoint": False} -2777 -2778 -2779class AlterTable(Expression): -2780 arg_types = {"this": True, "actions": True, "exists": False} -2781 -2782 -2783class AddConstraint(Expression): -2784 arg_types = {"this": False, "expression": False, "enforced": False} +2760class StructKwarg(Expression): +2761 arg_types = {"this": True, "expression": True} +2762 +2763 +2764# WHERE x <OP> EXISTS|ALL|ANY|SOME(SELECT ...) +2765class SubqueryPredicate(Predicate): +2766 pass +2767 +2768 +2769class All(SubqueryPredicate): +2770 pass +2771 +2772 +2773class Any(SubqueryPredicate): +2774 pass +2775 +2776 +2777class Exists(SubqueryPredicate): +2778 pass +2779 +2780 +2781# Commands to interact with the databases or engines. For most of the command +2782# expressions we parse whatever comes after the command's name as a string. +2783class Command(Expression): +2784 arg_types = {"this": True, "expression": False} 2785 2786 -2787class DropPartition(Expression): -2788 arg_types = {"expressions": True, "exists": False} +2787class Transaction(Expression): +2788 arg_types = {"this": False, "modes": False} 2789 2790 -2791# Binary expressions like (ADD a b) -2792class Binary(Expression): -2793 arg_types = {"this": True, "expression": True} +2791class Commit(Expression): +2792 arg_types = {"chain": False} +2793 2794 -2795 @property -2796 def left(self): -2797 return self.this +2795class Rollback(Expression): +2796 arg_types = {"savepoint": False} +2797 2798 -2799 @property -2800 def right(self): -2801 return self.expression +2799class AlterTable(Expression): +2800 arg_types = {"this": True, "actions": True, "exists": False} +2801 2802 -2803 -2804class Add(Binary): -2805 pass +2803class AddConstraint(Expression): +2804 arg_types = {"this": False, "expression": False, "enforced": False} +2805 2806 -2807 -2808class Connector(Binary, Condition): -2809 pass +2807class DropPartition(Expression): +2808 arg_types = {"expressions": True, "exists": False} +2809 2810 -2811 -2812class And(Connector): -2813 pass +2811# Binary expressions like (ADD a b) +2812class Binary(Expression): +2813 arg_types = {"this": True, "expression": True} 2814 -2815 -2816class Or(Connector): -2817 pass +2815 @property +2816 def left(self): +2817 return self.this 2818 -2819 -2820class BitwiseAnd(Binary): -2821 pass +2819 @property +2820 def right(self): +2821 return self.expression 2822 2823 -2824class BitwiseLeftShift(Binary): +2824class Add(Binary): 2825 pass 2826 2827 -2828class BitwiseOr(Binary): +2828class Connector(Binary, Condition): 2829 pass 2830 2831 -2832class BitwiseRightShift(Binary): +2832class And(Connector): 2833 pass 2834 2835 -2836class BitwiseXor(Binary): +2836class Or(Connector): 2837 pass 2838 2839 -2840class Div(Binary): +2840class BitwiseAnd(Binary): 2841 pass 2842 2843 -2844class Overlaps(Binary): +2844class BitwiseLeftShift(Binary): 2845 pass 2846 2847 -2848class Dot(Binary): -2849 @property -2850 def name(self) -> str: -2851 return self.expression.name -2852 -2853 -2854class DPipe(Binary): -2855 pass -2856 -2857 -2858class EQ(Binary, Predicate): -2859 pass -2860 -2861 -2862class NullSafeEQ(Binary, Predicate): -2863 pass -2864 -2865 -2866class NullSafeNEQ(Binary, Predicate): -2867 pass -2868 -2869 -2870class Distance(Binary): -2871 pass -2872 -2873 -2874class Escape(Binary): -2875 pass +2848class BitwiseOr(Binary): +2849 pass +2850 +2851 +2852class BitwiseRightShift(Binary): +2853 pass +2854 +2855 +2856class BitwiseXor(Binary): +2857 pass +2858 +2859 +2860class Div(Binary): +2861 pass +2862 +2863 +2864class FloatDiv(Binary): +2865 pass +2866 +2867 +2868class Overlaps(Binary): +2869 pass +2870 +2871 +2872class Dot(Binary): +2873 @property +2874 def name(self) -> str: +2875 return self.expression.name 2876 2877 -2878class Glob(Binary, Predicate): +2878class DPipe(Binary): 2879 pass 2880 2881 -2882class GT(Binary, Predicate): +2882class EQ(Binary, Predicate): 2883 pass 2884 2885 -2886class GTE(Binary, Predicate): +2886class NullSafeEQ(Binary, Predicate): 2887 pass 2888 2889 -2890class ILike(Binary, Predicate): +2890class NullSafeNEQ(Binary, Predicate): 2891 pass 2892 2893 -2894class ILikeAny(Binary, Predicate): +2894class Distance(Binary): 2895 pass 2896 2897 -2898class IntDiv(Binary): +2898class Escape(Binary): 2899 pass 2900 2901 -2902class Is(Binary, Predicate): +2902class Glob(Binary, Predicate): 2903 pass 2904 2905 -2906class Kwarg(Binary): -2907 """Kwarg in special functions like func(kwarg => y).""" +2906class GT(Binary, Predicate): +2907 pass 2908 2909 -2910class Like(Binary, Predicate): +2910class GTE(Binary, Predicate): 2911 pass 2912 2913 -2914class LikeAny(Binary, Predicate): +2914class ILike(Binary, Predicate): 2915 pass 2916 2917 -2918class LT(Binary, Predicate): +2918class ILikeAny(Binary, Predicate): 2919 pass 2920 2921 -2922class LTE(Binary, Predicate): +2922class IntDiv(Binary): 2923 pass 2924 2925 -2926class Mod(Binary): +2926class Is(Binary, Predicate): 2927 pass 2928 2929 -2930class Mul(Binary): -2931 pass +2930class Kwarg(Binary): +2931 """Kwarg in special functions like func(kwarg => y).""" 2932 2933 -2934class NEQ(Binary, Predicate): +2934class Like(Binary, Predicate): 2935 pass 2936 2937 -2938class SimilarTo(Binary, Predicate): +2938class LikeAny(Binary, Predicate): 2939 pass 2940 2941 -2942class Slice(Binary): -2943 arg_types = {"this": False, "expression": False} +2942class LT(Binary, Predicate): +2943 pass 2944 2945 -2946class Sub(Binary): +2946class LTE(Binary, Predicate): 2947 pass 2948 2949 -2950# Unary Expressions -2951# (NOT a) -2952class Unary(Expression): -2953 pass -2954 -2955 -2956class BitwiseNot(Unary): -2957 pass -2958 -2959 -2960class Not(Unary, Condition): -2961 pass -2962 -2963 -2964class Paren(Unary, Condition): -2965 arg_types = {"this": True, "with": False} -2966 -2967 -2968class Neg(Unary): -2969 pass -2970 -2971 -2972# Special Functions -2973class Alias(Expression): -2974 arg_types = {"this": True, "alias": False} -2975 -2976 @property -2977 def output_name(self): -2978 return self.alias +2950class Mod(Binary): +2951 pass +2952 +2953 +2954class Mul(Binary): +2955 pass +2956 +2957 +2958class NEQ(Binary, Predicate): +2959 pass +2960 +2961 +2962class SimilarTo(Binary, Predicate): +2963 pass +2964 +2965 +2966class Slice(Binary): +2967 arg_types = {"this": False, "expression": False} +2968 +2969 +2970class Sub(Binary): +2971 pass +2972 +2973 +2974# Unary Expressions +2975# (NOT a) +2976class Unary(Expression): +2977 pass +2978 2979 -2980 -2981class Aliases(Expression): -2982 arg_types = {"this": True, "expressions": True} +2980class BitwiseNot(Unary): +2981 pass +2982 2983 -2984 @property -2985 def aliases(self): -2986 return self.expressions +2984class Not(Unary, Condition): +2985 pass +2986 2987 -2988 -2989class AtTimeZone(Expression): -2990 arg_types = {"this": True, "zone": True} +2988class Paren(Unary, Condition): +2989 arg_types = {"this": True, "with": False} +2990 2991 -2992 -2993class Between(Predicate): -2994 arg_types = {"this": True, "low": True, "high": True} +2992class Neg(Unary): +2993 pass +2994 2995 -2996 -2997class Bracket(Condition): -2998 arg_types = {"this": True, "expressions": True} +2996# Special Functions +2997class Alias(Expression): +2998 arg_types = {"this": True, "alias": False} 2999 -3000 -3001class Distinct(Expression): -3002 arg_types = {"expressions": False, "on": False} +3000 @property +3001 def output_name(self): +3002 return self.alias 3003 3004 -3005class In(Predicate): -3006 arg_types = { -3007 "this": True, -3008 "expressions": False, -3009 "query": False, -3010 "unnest": False, -3011 "field": False, -3012 "is_global": False, -3013 } -3014 +3005class Aliases(Expression): +3006 arg_types = {"this": True, "expressions": True} +3007 +3008 @property +3009 def aliases(self): +3010 return self.expressions +3011 +3012 +3013class AtTimeZone(Expression): +3014 arg_types = {"this": True, "zone": True} 3015 -3016class TimeUnit(Expression): -3017 """Automatically converts unit arg into a var.""" -3018 -3019 arg_types = {"unit": False} +3016 +3017class Between(Predicate): +3018 arg_types = {"this": True, "low": True, "high": True} +3019 3020 -3021 def __init__(self, **args): -3022 unit = args.get("unit") -3023 if isinstance(unit, Column): -3024 args["unit"] = Var(this=unit.name) -3025 elif isinstance(unit, Week): -3026 unit.set("this", Var(this=unit.this.name)) -3027 super().__init__(**args) +3021class Bracket(Condition): +3022 arg_types = {"this": True, "expressions": True} +3023 +3024 +3025class Distinct(Expression): +3026 arg_types = {"expressions": False, "on": False} +3027 3028 -3029 -3030class Interval(TimeUnit): -3031 arg_types = {"this": False, "unit": False} -3032 -3033 -3034class IgnoreNulls(Expression): -3035 pass -3036 -3037 -3038class RespectNulls(Expression): -3039 pass -3040 -3041 -3042# Functions -3043class Func(Condition): -3044 """ -3045 The base class for all function expressions. -3046 -3047 Attributes: -3048 is_var_len_args (bool): if set to True the last argument defined in arg_types will be -3049 treated as a variable length argument and the argument's value will be stored as a list. -3050 _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items) -3051 for this function expression. These values are used to map this node to a name during parsing -3052 as well as to provide the function's name during SQL string generation. By default the SQL -3053 name is set to the expression's class name transformed to snake case. -3054 """ -3055 -3056 is_var_len_args = False +3029class In(Predicate): +3030 arg_types = { +3031 "this": True, +3032 "expressions": False, +3033 "query": False, +3034 "unnest": False, +3035 "field": False, +3036 "is_global": False, +3037 } +3038 +3039 +3040class TimeUnit(Expression): +3041 """Automatically converts unit arg into a var.""" +3042 +3043 arg_types = {"unit": False} +3044 +3045 def __init__(self, **args): +3046 unit = args.get("unit") +3047 if isinstance(unit, Column): +3048 args["unit"] = Var(this=unit.name) +3049 elif isinstance(unit, Week): +3050 unit.set("this", Var(this=unit.this.name)) +3051 super().__init__(**args) +3052 +3053 +3054class Interval(TimeUnit): +3055 arg_types = {"this": False, "unit": False} +3056 3057 -3058 @classmethod -3059 def from_arg_list(cls, args): -3060 if cls.is_var_len_args: -3061 all_arg_keys = list(cls.arg_types) -3062 # If this function supports variable length argument treat the last argument as such. -3063 non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys -3064 num_non_var = len(non_var_len_arg_keys) +3058class IgnoreNulls(Expression): +3059 pass +3060 +3061 +3062class RespectNulls(Expression): +3063 pass +3064 3065 -3066 args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)} -3067 args_dict[all_arg_keys[-1]] = args[num_non_var:] -3068 else: -3069 args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)} +3066# Functions +3067class Func(Condition): +3068 """ +3069 The base class for all function expressions. 3070 -3071 return cls(**args_dict) -3072 -3073 @classmethod -3074 def sql_names(cls): -3075 if cls is Func: -3076 raise NotImplementedError( -3077 "SQL name is only supported by concrete function implementations" -3078 ) -3079 if "_sql_names" not in cls.__dict__: -3080 cls._sql_names = [camel_to_snake_case(cls.__name__)] -3081 return cls._sql_names -3082 -3083 @classmethod -3084 def sql_name(cls): -3085 return cls.sql_names()[0] -3086 -3087 @classmethod -3088 def default_parser_mappings(cls): -3089 return {name: cls.from_arg_list for name in cls.sql_names()} -3090 -3091 -3092class AggFunc(Func): -3093 pass +3071 Attributes: +3072 is_var_len_args (bool): if set to True the last argument defined in arg_types will be +3073 treated as a variable length argument and the argument's value will be stored as a list. +3074 _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items) +3075 for this function expression. These values are used to map this node to a name during parsing +3076 as well as to provide the function's name during SQL string generation. By default the SQL +3077 name is set to the expression's class name transformed to snake case. +3078 """ +3079 +3080 is_var_len_args = False +3081 +3082 @classmethod +3083 def from_arg_list(cls, args): +3084 if cls.is_var_len_args: +3085 all_arg_keys = list(cls.arg_types) +3086 # If this function supports variable length argument treat the last argument as such. +3087 non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys +3088 num_non_var = len(non_var_len_arg_keys) +3089 +3090 args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)} +3091 args_dict[all_arg_keys[-1]] = args[num_non_var:] +3092 else: +3093 args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)} 3094 -3095 -3096class Abs(Func): -3097 pass -3098 -3099 -3100class Anonymous(Func): -3101 arg_types = {"this": True, "expressions": False} -3102 is_var_len_args = True -3103 -3104 -3105class ApproxDistinct(AggFunc): -3106 arg_types = {"this": True, "accuracy": False} -3107 -3108 -3109class Array(Func): -3110 arg_types = {"expressions": False} -3111 is_var_len_args = True -3112 -3113 -3114class GenerateSeries(Func): -3115 arg_types = {"start": True, "end": True, "step": False} -3116 -3117 -3118class ArrayAgg(AggFunc): -3119 pass -3120 -3121 -3122class ArrayAll(Func): -3123 arg_types = {"this": True, "expression": True} -3124 -3125 -3126class ArrayAny(Func): -3127 arg_types = {"this": True, "expression": True} +3095 return cls(**args_dict) +3096 +3097 @classmethod +3098 def sql_names(cls): +3099 if cls is Func: +3100 raise NotImplementedError( +3101 "SQL name is only supported by concrete function implementations" +3102 ) +3103 if "_sql_names" not in cls.__dict__: +3104 cls._sql_names = [camel_to_snake_case(cls.__name__)] +3105 return cls._sql_names +3106 +3107 @classmethod +3108 def sql_name(cls): +3109 return cls.sql_names()[0] +3110 +3111 @classmethod +3112 def default_parser_mappings(cls): +3113 return {name: cls.from_arg_list for name in cls.sql_names()} +3114 +3115 +3116class AggFunc(Func): +3117 pass +3118 +3119 +3120class Abs(Func): +3121 pass +3122 +3123 +3124class Anonymous(Func): +3125 arg_types = {"this": True, "expressions": False} +3126 is_var_len_args = True +3127 3128 -3129 -3130class ArrayConcat(Func): -3131 arg_types = {"this": True, "expressions": False} -3132 is_var_len_args = True -3133 -3134 -3135class ArrayContains(Func): -3136 arg_types = {"this": True, "expression": True} +3129class ApproxDistinct(AggFunc): +3130 arg_types = {"this": True, "accuracy": False} +3131 +3132 +3133class Array(Func): +3134 arg_types = {"expressions": False} +3135 is_var_len_args = True +3136 3137 -3138 -3139class ArrayFilter(Func): -3140 arg_types = {"this": True, "expression": True} -3141 _sql_names = ["FILTER", "ARRAY_FILTER"] -3142 -3143 -3144class ArrayJoin(Func): -3145 arg_types = {"this": True, "expression": True, "null": False} -3146 -3147 -3148class ArraySize(Func): -3149 arg_types = {"this": True, "expression": False} -3150 -3151 -3152class ArraySort(Func): -3153 arg_types = {"this": True, "expression": False} -3154 -3155 -3156class ArraySum(Func): -3157 pass +3138class GenerateSeries(Func): +3139 arg_types = {"start": True, "end": True, "step": False} +3140 +3141 +3142class ArrayAgg(AggFunc): +3143 pass +3144 +3145 +3146class ArrayAll(Func): +3147 arg_types = {"this": True, "expression": True} +3148 +3149 +3150class ArrayAny(Func): +3151 arg_types = {"this": True, "expression": True} +3152 +3153 +3154class ArrayConcat(Func): +3155 arg_types = {"this": True, "expressions": False} +3156 is_var_len_args = True +3157 3158 -3159 -3160class ArrayUnionAgg(AggFunc): -3161 pass +3159class ArrayContains(Func): +3160 arg_types = {"this": True, "expression": True} +3161 3162 -3163 -3164class Avg(AggFunc): -3165 pass +3163class ArrayFilter(Func): +3164 arg_types = {"this": True, "expression": True} +3165 _sql_names = ["FILTER", "ARRAY_FILTER"] 3166 3167 -3168class AnyValue(AggFunc): -3169 pass +3168class ArrayJoin(Func): +3169 arg_types = {"this": True, "expression": True, "null": False} 3170 3171 -3172class Case(Func): -3173 arg_types = {"this": False, "ifs": True, "default": False} +3172class ArraySize(Func): +3173 arg_types = {"this": True, "expression": False} 3174 3175 -3176class Cast(Func): -3177 arg_types = {"this": True, "to": True} +3176class ArraySort(Func): +3177 arg_types = {"this": True, "expression": False} 3178 -3179 @property -3180 def name(self) -> str: -3181 return self.this.name +3179 +3180class ArraySum(Func): +3181 pass 3182 -3183 @property -3184 def to(self): -3185 return self.args["to"] +3183 +3184class ArrayUnionAgg(AggFunc): +3185 pass 3186 -3187 @property -3188 def output_name(self): -3189 return self.name +3187 +3188class Avg(AggFunc): +3189 pass 3190 -3191 def is_type(self, dtype: DataType.Type) -> bool: -3192 return self.to.is_type(dtype) -3193 +3191 +3192class AnyValue(AggFunc): +3193 pass 3194 -3195class Collate(Binary): -3196 pass -3197 +3195 +3196class Case(Func): +3197 arg_types = {"this": False, "ifs": True, "default": False} 3198 -3199class TryCast(Cast): -3200 pass -3201 +3199 +3200class Cast(Func): +3201 arg_types = {"this": True, "to": True} 3202 -3203class Ceil(Func): -3204 arg_types = {"this": True, "decimals": False} -3205 _sql_names = ["CEIL", "CEILING"] +3203 @property +3204 def name(self) -> str: +3205 return self.this.name 3206 -3207 -3208class Coalesce(Func): -3209 arg_types = {"this": True, "expressions": False} -3210 is_var_len_args = True -3211 -3212 -3213class Concat(Func): -3214 arg_types = {"expressions": True} -3215 is_var_len_args = True -3216 +3207 @property +3208 def to(self): +3209 return self.args["to"] +3210 +3211 @property +3212 def output_name(self): +3213 return self.name +3214 +3215 def is_type(self, dtype: DataType.Type) -> bool: +3216 return self.to.is_type(dtype) 3217 -3218class ConcatWs(Concat): -3219 _sql_names = ["CONCAT_WS"] -3220 +3218 +3219class Collate(Binary): +3220 pass 3221 -3222class Count(AggFunc): -3223 arg_types = {"this": False} -3224 +3222 +3223class TryCast(Cast): +3224 pass 3225 -3226class CurrentDate(Func): -3227 arg_types = {"this": False} -3228 -3229 -3230class CurrentDatetime(Func): -3231 arg_types = {"this": False} -3232 -3233 -3234class CurrentTime(Func): -3235 arg_types = {"this": False} +3226 +3227class Ceil(Func): +3228 arg_types = {"this": True, "decimals": False} +3229 _sql_names = ["CEIL", "CEILING"] +3230 +3231 +3232class Coalesce(Func): +3233 arg_types = {"this": True, "expressions": False} +3234 is_var_len_args = True +3235 3236 -3237 -3238class CurrentTimestamp(Func): -3239 arg_types = {"this": False} +3237class Concat(Func): +3238 arg_types = {"expressions": True} +3239 is_var_len_args = True 3240 3241 -3242class DateAdd(Func, TimeUnit): -3243 arg_types = {"this": True, "expression": True, "unit": False} +3242class ConcatWs(Concat): +3243 _sql_names = ["CONCAT_WS"] 3244 3245 -3246class DateSub(Func, TimeUnit): -3247 arg_types = {"this": True, "expression": True, "unit": False} +3246class Count(AggFunc): +3247 arg_types = {"this": False} 3248 3249 -3250class DateDiff(Func, TimeUnit): -3251 arg_types = {"this": True, "expression": True, "unit": False} +3250class CurrentDate(Func): +3251 arg_types = {"this": False} 3252 3253 -3254class DateTrunc(Func): -3255 arg_types = {"unit": True, "this": True, "zone": False} +3254class CurrentDatetime(Func): +3255 arg_types = {"this": False} 3256 3257 -3258class DatetimeAdd(Func, TimeUnit): -3259 arg_types = {"this": True, "expression": True, "unit": False} +3258class CurrentTime(Func): +3259 arg_types = {"this": False} 3260 3261 -3262class DatetimeSub(Func, TimeUnit): -3263 arg_types = {"this": True, "expression": True, "unit": False} +3262class CurrentTimestamp(Func): +3263 arg_types = {"this": False} 3264 3265 -3266class DatetimeDiff(Func, TimeUnit): +3266class DateAdd(Func, TimeUnit): 3267 arg_types = {"this": True, "expression": True, "unit": False} 3268 3269 -3270class DatetimeTrunc(Func, TimeUnit): -3271 arg_types = {"this": True, "unit": True, "zone": False} +3270class DateSub(Func, TimeUnit): +3271 arg_types = {"this": True, "expression": True, "unit": False} 3272 3273 -3274class DayOfWeek(Func): -3275 _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"] +3274class DateDiff(Func, TimeUnit): +3275 arg_types = {"this": True, "expression": True, "unit": False} 3276 3277 -3278class DayOfMonth(Func): -3279 _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"] +3278class DateTrunc(Func): +3279 arg_types = {"unit": True, "this": True, "zone": False} 3280 3281 -3282class DayOfYear(Func): -3283 _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"] +3282class DatetimeAdd(Func, TimeUnit): +3283 arg_types = {"this": True, "expression": True, "unit": False} 3284 3285 -3286class WeekOfYear(Func): -3287 _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"] +3286class DatetimeSub(Func, TimeUnit): +3287 arg_types = {"this": True, "expression": True, "unit": False} 3288 3289 -3290class LastDateOfMonth(Func): -3291 pass +3290class DatetimeDiff(Func, TimeUnit): +3291 arg_types = {"this": True, "expression": True, "unit": False} 3292 3293 -3294class Extract(Func): -3295 arg_types = {"this": True, "expression": True} +3294class DatetimeTrunc(Func, TimeUnit): +3295 arg_types = {"this": True, "unit": True, "zone": False} 3296 3297 -3298class TimestampAdd(Func, TimeUnit): -3299 arg_types = {"this": True, "expression": True, "unit": False} +3298class DayOfWeek(Func): +3299 _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"] 3300 3301 -3302class TimestampSub(Func, TimeUnit): -3303 arg_types = {"this": True, "expression": True, "unit": False} +3302class DayOfMonth(Func): +3303 _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"] 3304 3305 -3306class TimestampDiff(Func, TimeUnit): -3307 arg_types = {"this": True, "expression": True, "unit": False} +3306class DayOfYear(Func): +3307 _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"] 3308 3309 -3310class TimestampTrunc(Func, TimeUnit): -3311 arg_types = {"this": True, "unit": True, "zone": False} +3310class WeekOfYear(Func): +3311 _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"] 3312 3313 -3314class TimeAdd(Func, TimeUnit): -3315 arg_types = {"this": True, "expression": True, "unit": False} +3314class LastDateOfMonth(Func): +3315 pass 3316 3317 -3318class TimeSub(Func, TimeUnit): -3319 arg_types = {"this": True, "expression": True, "unit": False} +3318class Extract(Func): +3319 arg_types = {"this": True, "expression": True} 3320 3321 -3322class TimeDiff(Func, TimeUnit): +3322class TimestampAdd(Func, TimeUnit): 3323 arg_types = {"this": True, "expression": True, "unit": False} 3324 3325 -3326class TimeTrunc(Func, TimeUnit): -3327 arg_types = {"this": True, "unit": True, "zone": False} +3326class TimestampSub(Func, TimeUnit): +3327 arg_types = {"this": True, "expression": True, "unit": False} 3328 3329 -3330class DateFromParts(Func): -3331 _sql_names = ["DATEFROMPARTS"] -3332 arg_types = {"year": True, "month": True, "day": True} +3330class TimestampDiff(Func, TimeUnit): +3331 arg_types = {"this": True, "expression": True, "unit": False} +3332 3333 -3334 -3335class DateStrToDate(Func): -3336 pass +3334class TimestampTrunc(Func, TimeUnit): +3335 arg_types = {"this": True, "unit": True, "zone": False} +3336 3337 -3338 -3339class DateToDateStr(Func): -3340 pass +3338class TimeAdd(Func, TimeUnit): +3339 arg_types = {"this": True, "expression": True, "unit": False} +3340 3341 -3342 -3343class DateToDi(Func): -3344 pass +3342class TimeSub(Func, TimeUnit): +3343 arg_types = {"this": True, "expression": True, "unit": False} +3344 3345 -3346 -3347class Day(Func): -3348 pass +3346class TimeDiff(Func, TimeUnit): +3347 arg_types = {"this": True, "expression": True, "unit": False} +3348 3349 -3350 -3351class Decode(Func): -3352 arg_types = {"this": True, "charset": True, "replace": False} +3350class TimeTrunc(Func, TimeUnit): +3351 arg_types = {"this": True, "unit": True, "zone": False} +3352 3353 -3354 -3355class DiToDate(Func): -3356 pass +3354class DateFromParts(Func): +3355 _sql_names = ["DATEFROMPARTS"] +3356 arg_types = {"year": True, "month": True, "day": True} 3357 3358 -3359class Encode(Func): -3360 arg_types = {"this": True, "charset": True} +3359class DateStrToDate(Func): +3360 pass 3361 3362 -3363class Exp(Func): +3363class DateToDateStr(Func): 3364 pass 3365 3366 -3367class Explode(Func): +3367class DateToDi(Func): 3368 pass 3369 3370 -3371class Floor(Func): -3372 arg_types = {"this": True, "decimals": False} +3371class Day(Func): +3372 pass 3373 3374 -3375class Greatest(Func): -3376 arg_types = {"this": True, "expressions": False} -3377 is_var_len_args = True +3375class Decode(Func): +3376 arg_types = {"this": True, "charset": True, "replace": False} +3377 3378 -3379 -3380class GroupConcat(Func): -3381 arg_types = {"this": True, "separator": False} +3379class DiToDate(Func): +3380 pass +3381 3382 -3383 -3384class Hex(Func): -3385 pass +3383class Encode(Func): +3384 arg_types = {"this": True, "charset": True} +3385 3386 -3387 -3388class If(Func): -3389 arg_types = {"this": True, "true": True, "false": False} +3387class Exp(Func): +3388 pass +3389 3390 -3391 -3392class IfNull(Func): -3393 arg_types = {"this": True, "expression": False} -3394 _sql_names = ["IFNULL", "NVL"] -3395 -3396 -3397class Initcap(Func): -3398 pass -3399 -3400 -3401class JSONBContains(Binary): -3402 _sql_names = ["JSONB_CONTAINS"] +3391class Explode(Func): +3392 pass +3393 +3394 +3395class Floor(Func): +3396 arg_types = {"this": True, "decimals": False} +3397 +3398 +3399class Greatest(Func): +3400 arg_types = {"this": True, "expressions": False} +3401 is_var_len_args = True +3402 3403 -3404 -3405class JSONExtract(Binary, Func): -3406 _sql_names = ["JSON_EXTRACT"] +3404class GroupConcat(Func): +3405 arg_types = {"this": True, "separator": False} +3406 3407 -3408 -3409class JSONExtractScalar(JSONExtract): -3410 _sql_names = ["JSON_EXTRACT_SCALAR"] +3408class Hex(Func): +3409 pass +3410 3411 -3412 -3413class JSONBExtract(JSONExtract): -3414 _sql_names = ["JSONB_EXTRACT"] +3412class If(Func): +3413 arg_types = {"this": True, "true": True, "false": False} +3414 3415 -3416 -3417class JSONBExtractScalar(JSONExtract): -3418 _sql_names = ["JSONB_EXTRACT_SCALAR"] +3416class IfNull(Func): +3417 arg_types = {"this": True, "expression": False} +3418 _sql_names = ["IFNULL", "NVL"] 3419 3420 -3421class Least(Func): -3422 arg_types = {"this": True, "expressions": False} -3423 is_var_len_args = True +3421class Initcap(Func): +3422 pass +3423 3424 -3425 -3426class Length(Func): -3427 pass +3425class JSONBContains(Binary): +3426 _sql_names = ["JSONB_CONTAINS"] +3427 3428 -3429 -3430class Levenshtein(Func): -3431 arg_types = { -3432 "this": True, -3433 "expression": False, -3434 "ins_cost": False, -3435 "del_cost": False, -3436 "sub_cost": False, -3437 } -3438 +3429class JSONExtract(Binary, Func): +3430 _sql_names = ["JSON_EXTRACT"] +3431 +3432 +3433class JSONExtractScalar(JSONExtract): +3434 _sql_names = ["JSON_EXTRACT_SCALAR"] +3435 +3436 +3437class JSONBExtract(JSONExtract): +3438 _sql_names = ["JSONB_EXTRACT"] 3439 -3440class Ln(Func): -3441 pass -3442 +3440 +3441class JSONBExtractScalar(JSONExtract): +3442 _sql_names = ["JSONB_EXTRACT_SCALAR"] 3443 -3444class Log(Func): -3445 arg_types = {"this": True, "expression": False} -3446 -3447 -3448class Log2(Func): -3449 pass -3450 -3451 -3452class Log10(Func): -3453 pass -3454 -3455 -3456class LogicalOr(AggFunc): -3457 _sql_names = ["LOGICAL_OR", "BOOL_OR"] -3458 -3459 -3460class Lower(Func): -3461 _sql_names = ["LOWER", "LCASE"] +3444 +3445class Least(Func): +3446 arg_types = {"expressions": False} +3447 is_var_len_args = True +3448 +3449 +3450class Length(Func): +3451 pass +3452 +3453 +3454class Levenshtein(Func): +3455 arg_types = { +3456 "this": True, +3457 "expression": False, +3458 "ins_cost": False, +3459 "del_cost": False, +3460 "sub_cost": False, +3461 } 3462 3463 -3464class Map(Func): -3465 arg_types = {"keys": False, "values": False} +3464class Ln(Func): +3465 pass 3466 3467 -3468class VarMap(Func): -3469 arg_types = {"keys": True, "values": True} -3470 is_var_len_args = True +3468class Log(Func): +3469 arg_types = {"this": True, "expression": False} +3470 3471 -3472 -3473class Matches(Func): -3474 """Oracle/Snowflake decode. -3475 https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm -3476 Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else) -3477 """ +3472class Log2(Func): +3473 pass +3474 +3475 +3476class Log10(Func): +3477 pass 3478 -3479 arg_types = {"this": True, "expressions": True} -3480 is_var_len_args = True -3481 +3479 +3480class LogicalOr(AggFunc): +3481 _sql_names = ["LOGICAL_OR", "BOOL_OR"] 3482 -3483class Max(AggFunc): -3484 arg_types = {"this": True, "expression": False} -3485 +3483 +3484class Lower(Func): +3485 _sql_names = ["LOWER", "LCASE"] 3486 -3487class Min(AggFunc): -3488 arg_types = {"this": True, "expression": False} -3489 +3487 +3488class Map(Func): +3489 arg_types = {"keys": False, "values": False} 3490 -3491class Month(Func): -3492 pass -3493 -3494 -3495class Nvl2(Func): -3496 arg_types = {"this": True, "true": True, "false": False} -3497 -3498 -3499class Posexplode(Func): -3500 pass -3501 +3491 +3492class VarMap(Func): +3493 arg_types = {"keys": True, "values": True} +3494 is_var_len_args = True +3495 +3496 +3497class Matches(Func): +3498 """Oracle/Snowflake decode. +3499 https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm +3500 Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else) +3501 """ 3502 -3503class Pow(Binary, Func): -3504 _sql_names = ["POWER", "POW"] +3503 arg_types = {"this": True, "expressions": True} +3504 is_var_len_args = True 3505 3506 -3507class PercentileCont(AggFunc): -3508 pass -3509 +3507class Max(AggFunc): +3508 arg_types = {"this": True, "expressions": False} +3509 is_var_len_args = True 3510 -3511class PercentileDisc(AggFunc): -3512 pass -3513 -3514 -3515class Quantile(AggFunc): -3516 arg_types = {"this": True, "quantile": True} -3517 -3518 -3519# Clickhouse-specific: -3520# https://clickhouse.com/docs/en/sql-reference/aggregate-functions/reference/quantiles/#quantiles -3521class Quantiles(AggFunc): -3522 arg_types = {"parameters": True, "expressions": True} +3511 +3512class Min(AggFunc): +3513 arg_types = {"this": True, "expressions": False} +3514 is_var_len_args = True +3515 +3516 +3517class Month(Func): +3518 pass +3519 +3520 +3521class Nvl2(Func): +3522 arg_types = {"this": True, "true": True, "false": False} 3523 3524 -3525class QuantileIf(AggFunc): -3526 arg_types = {"parameters": True, "expressions": True} +3525class Posexplode(Func): +3526 pass 3527 3528 -3529class ApproxQuantile(Quantile): -3530 arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False} +3529class Pow(Binary, Func): +3530 _sql_names = ["POWER", "POW"] 3531 3532 -3533class RangeN(Func): -3534 arg_types = {"this": True, "expressions": True, "each": False} +3533class PercentileCont(AggFunc): +3534 pass 3535 3536 -3537class ReadCSV(Func): -3538 _sql_names = ["READ_CSV"] -3539 is_var_len_args = True -3540 arg_types = {"this": True, "expressions": False} -3541 -3542 -3543class Reduce(Func): -3544 arg_types = {"this": True, "initial": True, "merge": True, "finish": False} -3545 -3546 -3547class RegexpExtract(Func): -3548 arg_types = { -3549 "this": True, -3550 "expression": True, -3551 "position": False, -3552 "occurrence": False, -3553 "group": False, -3554 } -3555 -3556 -3557class RegexpLike(Func): -3558 arg_types = {"this": True, "expression": True, "flag": False} -3559 -3560 -3561class RegexpILike(Func): -3562 arg_types = {"this": True, "expression": True, "flag": False} -3563 -3564 -3565class RegexpSplit(Func): -3566 arg_types = {"this": True, "expression": True} +3537class PercentileDisc(AggFunc): +3538 pass +3539 +3540 +3541class Quantile(AggFunc): +3542 arg_types = {"this": True, "quantile": True} +3543 +3544 +3545# Clickhouse-specific: +3546# https://clickhouse.com/docs/en/sql-reference/aggregate-functions/reference/quantiles/#quantiles +3547class Quantiles(AggFunc): +3548 arg_types = {"parameters": True, "expressions": True} +3549 +3550 +3551class QuantileIf(AggFunc): +3552 arg_types = {"parameters": True, "expressions": True} +3553 +3554 +3555class ApproxQuantile(Quantile): +3556 arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False} +3557 +3558 +3559class RangeN(Func): +3560 arg_types = {"this": True, "expressions": True, "each": False} +3561 +3562 +3563class ReadCSV(Func): +3564 _sql_names = ["READ_CSV"] +3565 is_var_len_args = True +3566 arg_types = {"this": True, "expressions": False} 3567 3568 -3569class Repeat(Func): -3570 arg_types = {"this": True, "times": True} +3569class Reduce(Func): +3570 arg_types = {"this": True, "initial": True, "merge": True, "finish": False} 3571 3572 -3573class Round(Func): -3574 arg_types = {"this": True, "decimals": False} -3575 -3576 -3577class RowNumber(Func): -3578 arg_types: t.Dict[str, t.Any] = {} -3579 -3580 -3581class SafeDivide(Func): -3582 arg_types = {"this": True, "expression": True} -3583 -3584 -3585class SetAgg(AggFunc): -3586 pass -3587 -3588 -3589class SortArray(Func): -3590 arg_types = {"this": True, "asc": False} -3591 -3592 -3593class Split(Func): -3594 arg_types = {"this": True, "expression": True, "limit": False} -3595 -3596 -3597# Start may be omitted in the case of postgres -3598# https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 -3599class Substring(Func): -3600 arg_types = {"this": True, "start": False, "length": False} +3573class RegexpExtract(Func): +3574 arg_types = { +3575 "this": True, +3576 "expression": True, +3577 "position": False, +3578 "occurrence": False, +3579 "group": False, +3580 } +3581 +3582 +3583class RegexpLike(Func): +3584 arg_types = {"this": True, "expression": True, "flag": False} +3585 +3586 +3587class RegexpILike(Func): +3588 arg_types = {"this": True, "expression": True, "flag": False} +3589 +3590 +3591class RegexpSplit(Func): +3592 arg_types = {"this": True, "expression": True} +3593 +3594 +3595class Repeat(Func): +3596 arg_types = {"this": True, "times": True} +3597 +3598 +3599class Round(Func): +3600 arg_types = {"this": True, "decimals": False} 3601 3602 -3603class StrPosition(Func): -3604 arg_types = { -3605 "this": True, -3606 "substr": True, -3607 "position": False, -3608 "instance": False, -3609 } +3603class RowNumber(Func): +3604 arg_types: t.Dict[str, t.Any] = {} +3605 +3606 +3607class SafeDivide(Func): +3608 arg_types = {"this": True, "expression": True} +3609 3610 -3611 -3612class StrToDate(Func): -3613 arg_types = {"this": True, "format": True} +3611class SetAgg(AggFunc): +3612 pass +3613 3614 -3615 -3616class StrToTime(Func): -3617 arg_types = {"this": True, "format": True} +3615class SortArray(Func): +3616 arg_types = {"this": True, "asc": False} +3617 3618 -3619 -3620# Spark allows unix_timestamp() -3621# https://spark.apache.org/docs/3.1.3/api/python/reference/api/pyspark.sql.functions.unix_timestamp.html -3622class StrToUnix(Func): -3623 arg_types = {"this": False, "format": False} -3624 -3625 -3626class NumberToStr(Func): -3627 arg_types = {"this": True, "format": True} +3619class Split(Func): +3620 arg_types = {"this": True, "expression": True, "limit": False} +3621 +3622 +3623# Start may be omitted in the case of postgres +3624# https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 +3625class Substring(Func): +3626 arg_types = {"this": True, "start": False, "length": False} +3627 3628 -3629 -3630class Struct(Func): -3631 arg_types = {"expressions": True} -3632 is_var_len_args = True -3633 -3634 -3635class StructExtract(Func): -3636 arg_types = {"this": True, "expression": True} +3629class StrPosition(Func): +3630 arg_types = { +3631 "this": True, +3632 "substr": True, +3633 "position": False, +3634 "instance": False, +3635 } +3636 3637 -3638 -3639class Sum(AggFunc): -3640 pass +3638class StrToDate(Func): +3639 arg_types = {"this": True, "format": True} +3640 3641 -3642 -3643class Sqrt(Func): -3644 pass +3642class StrToTime(Func): +3643 arg_types = {"this": True, "format": True} +3644 3645 -3646 -3647class Stddev(AggFunc): -3648 pass -3649 +3646# Spark allows unix_timestamp() +3647# https://spark.apache.org/docs/3.1.3/api/python/reference/api/pyspark.sql.functions.unix_timestamp.html +3648class StrToUnix(Func): +3649 arg_types = {"this": False, "format": False} 3650 -3651class StddevPop(AggFunc): -3652 pass -3653 +3651 +3652class NumberToStr(Func): +3653 arg_types = {"this": True, "format": True} 3654 -3655class StddevSamp(AggFunc): -3656 pass -3657 -3658 -3659class TimeToStr(Func): -3660 arg_types = {"this": True, "format": True} -3661 -3662 -3663class TimeToTimeStr(Func): -3664 pass -3665 -3666 -3667class TimeToUnix(Func): -3668 pass -3669 -3670 -3671class TimeStrToDate(Func): -3672 pass -3673 -3674 -3675class TimeStrToTime(Func): -3676 pass -3677 -3678 -3679class TimeStrToUnix(Func): -3680 pass -3681 -3682 -3683class Trim(Func): -3684 arg_types = { -3685 "this": True, -3686 "expression": False, -3687 "position": False, -3688 "collation": False, -3689 } -3690 +3655 +3656class Struct(Func): +3657 arg_types = {"expressions": True} +3658 is_var_len_args = True +3659 +3660 +3661class StructExtract(Func): +3662 arg_types = {"this": True, "expression": True} +3663 +3664 +3665class Sum(AggFunc): +3666 pass +3667 +3668 +3669class Sqrt(Func): +3670 pass +3671 +3672 +3673class Stddev(AggFunc): +3674 pass +3675 +3676 +3677class StddevPop(AggFunc): +3678 pass +3679 +3680 +3681class StddevSamp(AggFunc): +3682 pass +3683 +3684 +3685class TimeToStr(Func): +3686 arg_types = {"this": True, "format": True} +3687 +3688 +3689class TimeToTimeStr(Func): +3690 pass 3691 -3692class TsOrDsAdd(Func, TimeUnit): -3693 arg_types = {"this": True, "expression": True, "unit": False} -3694 +3692 +3693class TimeToUnix(Func): +3694 pass 3695 -3696class TsOrDsToDateStr(Func): -3697 pass -3698 +3696 +3697class TimeStrToDate(Func): +3698 pass 3699 -3700class TsOrDsToDate(Func): -3701 arg_types = {"this": True, "format": False} -3702 +3700 +3701class TimeStrToTime(Func): +3702 pass 3703 -3704class TsOrDiToDi(Func): -3705 pass -3706 +3704 +3705class TimeStrToUnix(Func): +3706 pass 3707 -3708class Unhex(Func): -3709 pass -3710 -3711 -3712class UnixToStr(Func): -3713 arg_types = {"this": True, "format": False} -3714 -3715 -3716# https://prestodb.io/docs/current/functions/datetime.html -3717# presto has weird zone/hours/minutes -3718class UnixToTime(Func): -3719 arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False} +3708 +3709class Trim(Func): +3710 arg_types = { +3711 "this": True, +3712 "expression": False, +3713 "position": False, +3714 "collation": False, +3715 } +3716 +3717 +3718class TsOrDsAdd(Func, TimeUnit): +3719 arg_types = {"this": True, "expression": True, "unit": False} 3720 -3721 SECONDS = Literal.string("seconds") -3722 MILLIS = Literal.string("millis") -3723 MICROS = Literal.string("micros") +3721 +3722class TsOrDsToDateStr(Func): +3723 pass 3724 3725 -3726class UnixToTimeStr(Func): -3727 pass +3726class TsOrDsToDate(Func): +3727 arg_types = {"this": True, "format": False} 3728 3729 -3730class Upper(Func): -3731 _sql_names = ["UPPER", "UCASE"] +3730class TsOrDiToDi(Func): +3731 pass 3732 3733 -3734class Variance(AggFunc): -3735 _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"] +3734class Unhex(Func): +3735 pass 3736 3737 -3738class VariancePop(AggFunc): -3739 _sql_names = ["VARIANCE_POP", "VAR_POP"] +3738class UnixToStr(Func): +3739 arg_types = {"this": True, "format": False} 3740 3741 -3742class Week(Func): -3743 arg_types = {"this": True, "mode": False} -3744 -3745 -3746class XMLTable(Func): -3747 arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False} -3748 -3749 -3750class Year(Func): -3751 pass -3752 -3753 -3754class Use(Expression): -3755 arg_types = {"this": True, "kind": False} -3756 -3757 -3758class Merge(Expression): -3759 arg_types = {"this": True, "using": True, "on": True, "expressions": True} -3760 -3761 -3762class When(Func): -3763 arg_types = {"this": True, "then": True} -3764 -3765 -3766def _norm_args(expression): -3767 args = {} -3768 -3769 for k, arg in expression.args.items(): -3770 if isinstance(arg, list): -3771 arg = [_norm_arg(a) for a in arg] -3772 if not arg: -3773 arg = None -3774 else: -3775 arg = _norm_arg(arg) -3776 -3777 if arg is not None and arg is not False: -3778 args[k] = arg +3742# https://prestodb.io/docs/current/functions/datetime.html +3743# presto has weird zone/hours/minutes +3744class UnixToTime(Func): +3745 arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False} +3746 +3747 SECONDS = Literal.string("seconds") +3748 MILLIS = Literal.string("millis") +3749 MICROS = Literal.string("micros") +3750 +3751 +3752class UnixToTimeStr(Func): +3753 pass +3754 +3755 +3756class Upper(Func): +3757 _sql_names = ["UPPER", "UCASE"] +3758 +3759 +3760class Variance(AggFunc): +3761 _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"] +3762 +3763 +3764class VariancePop(AggFunc): +3765 _sql_names = ["VARIANCE_POP", "VAR_POP"] +3766 +3767 +3768class Week(Func): +3769 arg_types = {"this": True, "mode": False} +3770 +3771 +3772class XMLTable(Func): +3773 arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False} +3774 +3775 +3776class Year(Func): +3777 pass +3778 3779 -3780 return args -3781 +3780class Use(Expression): +3781 arg_types = {"this": True, "kind": False} 3782 -3783def _norm_arg(arg): -3784 return arg.lower() if isinstance(arg, str) else arg -3785 +3783 +3784class Merge(Expression): +3785 arg_types = {"this": True, "using": True, "on": True, "expressions": True} 3786 -3787ALL_FUNCTIONS = subclasses(__name__, Func, (AggFunc, Anonymous, Func)) -3788 -3789 -3790# Helpers -3791def maybe_parse( -3792 sql_or_expression: str | Expression, -3793 *, -3794 into: t.Optional[IntoType] = None, -3795 dialect: DialectType = None, -3796 prefix: t.Optional[str] = None, -3797 copy: bool = False, -3798 **opts, -3799) -> Expression: -3800 """Gracefully handle a possible string or expression. -3801 -3802 Example: -3803 >>> maybe_parse("1") -3804 (LITERAL this: 1, is_string: False) -3805 >>> maybe_parse(to_identifier("x")) -3806 (IDENTIFIER this: x, quoted: False) +3787 +3788class When(Func): +3789 arg_types = {"matched": True, "source": False, "condition": False, "then": True} +3790 +3791 +3792def _norm_args(expression): +3793 args = {} +3794 +3795 for k, arg in expression.args.items(): +3796 if isinstance(arg, list): +3797 arg = [_norm_arg(a) for a in arg] +3798 if not arg: +3799 arg = None +3800 else: +3801 arg = _norm_arg(arg) +3802 +3803 if arg is not None and arg is not False: +3804 args[k] = arg +3805 +3806 return args 3807 -3808 Args: -3809 sql_or_expression: the SQL code string or an expression -3810 into: the SQLGlot Expression to parse into -3811 dialect: the dialect used to parse the input expressions (in the case that an -3812 input expression is a SQL string). -3813 prefix: a string to prefix the sql with before it gets parsed -3814 (automatically includes a space) -3815 copy: whether or not to copy the expression. -3816 **opts: other options to use to parse the input expressions (again, in the case -3817 that an input expression is a SQL string). -3818 -3819 Returns: -3820 Expression: the parsed or given expression. -3821 """ -3822 if isinstance(sql_or_expression, Expression): -3823 if copy: -3824 return sql_or_expression.copy() -3825 return sql_or_expression -3826 -3827 import sqlglot -3828 -3829 sql = str(sql_or_expression) -3830 if prefix: -3831 sql = f"{prefix} {sql}" -3832 return sqlglot.parse_one(sql, read=dialect, into=into, **opts) +3808 +3809def _norm_arg(arg): +3810 return arg.lower() if isinstance(arg, str) else arg +3811 +3812 +3813ALL_FUNCTIONS = subclasses(__name__, Func, (AggFunc, Anonymous, Func)) +3814 +3815 +3816# Helpers +3817def maybe_parse( +3818 sql_or_expression: str | Expression, +3819 *, +3820 into: t.Optional[IntoType] = None, +3821 dialect: DialectType = None, +3822 prefix: t.Optional[str] = None, +3823 copy: bool = False, +3824 **opts, +3825) -> Expression: +3826 """Gracefully handle a possible string or expression. +3827 +3828 Example: +3829 >>> maybe_parse("1") +3830 (LITERAL this: 1, is_string: False) +3831 >>> maybe_parse(to_identifier("x")) +3832 (IDENTIFIER this: x, quoted: False) 3833 -3834 -3835def _maybe_copy(instance, copy=True): -3836 return instance.copy() if copy else instance -3837 -3838 -3839def _is_wrong_expression(expression, into): -3840 return isinstance(expression, Expression) and not isinstance(expression, into) -3841 -3842 -3843def _apply_builder( -3844 expression, -3845 instance, -3846 arg, -3847 copy=True, -3848 prefix=None, -3849 into=None, -3850 dialect=None, -3851 **opts, -3852): -3853 if _is_wrong_expression(expression, into): -3854 expression = into(this=expression) -3855 instance = _maybe_copy(instance, copy) -3856 expression = maybe_parse( -3857 sql_or_expression=expression, -3858 prefix=prefix, -3859 into=into, -3860 dialect=dialect, -3861 **opts, -3862 ) -3863 instance.set(arg, expression) -3864 return instance -3865 -3866 -3867def _apply_child_list_builder( -3868 *expressions, -3869 instance, -3870 arg, -3871 append=True, -3872 copy=True, -3873 prefix=None, -3874 into=None, -3875 dialect=None, -3876 properties=None, +3834 Args: +3835 sql_or_expression: the SQL code string or an expression +3836 into: the SQLGlot Expression to parse into +3837 dialect: the dialect used to parse the input expressions (in the case that an +3838 input expression is a SQL string). +3839 prefix: a string to prefix the sql with before it gets parsed +3840 (automatically includes a space) +3841 copy: whether or not to copy the expression. +3842 **opts: other options to use to parse the input expressions (again, in the case +3843 that an input expression is a SQL string). +3844 +3845 Returns: +3846 Expression: the parsed or given expression. +3847 """ +3848 if isinstance(sql_or_expression, Expression): +3849 if copy: +3850 return sql_or_expression.copy() +3851 return sql_or_expression +3852 +3853 import sqlglot +3854 +3855 sql = str(sql_or_expression) +3856 if prefix: +3857 sql = f"{prefix} {sql}" +3858 return sqlglot.parse_one(sql, read=dialect, into=into, **opts) +3859 +3860 +3861def _maybe_copy(instance, copy=True): +3862 return instance.copy() if copy else instance +3863 +3864 +3865def _is_wrong_expression(expression, into): +3866 return isinstance(expression, Expression) and not isinstance(expression, into) +3867 +3868 +3869def _apply_builder( +3870 expression, +3871 instance, +3872 arg, +3873 copy=True, +3874 prefix=None, +3875 into=None, +3876 dialect=None, 3877 **opts, 3878): -3879 instance = _maybe_copy(instance, copy) -3880 parsed = [] -3881 for expression in expressions: -3882 if _is_wrong_expression(expression, into): -3883 expression = into(expressions=[expression]) -3884 expression = maybe_parse( -3885 expression, -3886 into=into, -3887 dialect=dialect, -3888 prefix=prefix, -3889 **opts, -3890 ) -3891 parsed.extend(expression.expressions) +3879 if _is_wrong_expression(expression, into): +3880 expression = into(this=expression) +3881 instance = _maybe_copy(instance, copy) +3882 expression = maybe_parse( +3883 sql_or_expression=expression, +3884 prefix=prefix, +3885 into=into, +3886 dialect=dialect, +3887 **opts, +3888 ) +3889 instance.set(arg, expression) +3890 return instance +3891 3892 -3893 existing = instance.args.get(arg) -3894 if append and existing: -3895 parsed = existing.expressions + parsed -3896 -3897 child = into(expressions=parsed) -3898 for k, v in (properties or {}).items(): -3899 child.set(k, v) -3900 instance.set(arg, child) -3901 return instance -3902 -3903 -3904def _apply_list_builder( -3905 *expressions, -3906 instance, -3907 arg, -3908 append=True, -3909 copy=True, -3910 prefix=None, -3911 into=None, -3912 dialect=None, -3913 **opts, -3914): -3915 inst = _maybe_copy(instance, copy) -3916 -3917 expressions = [ -3918 maybe_parse( -3919 sql_or_expression=expression, -3920 into=into, -3921 prefix=prefix, -3922 dialect=dialect, -3923 **opts, -3924 ) -3925 for expression in expressions -3926 ] -3927 -3928 existing_expressions = inst.args.get(arg) -3929 if append and existing_expressions: -3930 expressions = existing_expressions + expressions -3931 -3932 inst.set(arg, expressions) -3933 return inst -3934 -3935 -3936def _apply_conjunction_builder( -3937 *expressions, -3938 instance, -3939 arg, -3940 into=None, -3941 append=True, -3942 copy=True, -3943 dialect=None, -3944 **opts, -3945): -3946 expressions = [exp for exp in expressions if exp is not None and exp != ""] -3947 if not expressions: -3948 return instance -3949 -3950 inst = _maybe_copy(instance, copy) -3951 -3952 existing = inst.args.get(arg) -3953 if append and existing is not None: -3954 expressions = [existing.this if into else existing] + list(expressions) -3955 -3956 node = and_(*expressions, dialect=dialect, **opts) +3893def _apply_child_list_builder( +3894 *expressions, +3895 instance, +3896 arg, +3897 append=True, +3898 copy=True, +3899 prefix=None, +3900 into=None, +3901 dialect=None, +3902 properties=None, +3903 **opts, +3904): +3905 instance = _maybe_copy(instance, copy) +3906 parsed = [] +3907 for expression in expressions: +3908 if _is_wrong_expression(expression, into): +3909 expression = into(expressions=[expression]) +3910 expression = maybe_parse( +3911 expression, +3912 into=into, +3913 dialect=dialect, +3914 prefix=prefix, +3915 **opts, +3916 ) +3917 parsed.extend(expression.expressions) +3918 +3919 existing = instance.args.get(arg) +3920 if append and existing: +3921 parsed = existing.expressions + parsed +3922 +3923 child = into(expressions=parsed) +3924 for k, v in (properties or {}).items(): +3925 child.set(k, v) +3926 instance.set(arg, child) +3927 return instance +3928 +3929 +3930def _apply_list_builder( +3931 *expressions, +3932 instance, +3933 arg, +3934 append=True, +3935 copy=True, +3936 prefix=None, +3937 into=None, +3938 dialect=None, +3939 **opts, +3940): +3941 inst = _maybe_copy(instance, copy) +3942 +3943 expressions = [ +3944 maybe_parse( +3945 sql_or_expression=expression, +3946 into=into, +3947 prefix=prefix, +3948 dialect=dialect, +3949 **opts, +3950 ) +3951 for expression in expressions +3952 ] +3953 +3954 existing_expressions = inst.args.get(arg) +3955 if append and existing_expressions: +3956 expressions = existing_expressions + expressions 3957 -3958 inst.set(arg, into(this=node) if into else node) +3958 inst.set(arg, expressions) 3959 return inst 3960 3961 -3962def _combine(expressions, operator, dialect=None, **opts): -3963 expressions = [condition(expression, dialect=dialect, **opts) for expression in expressions] -3964 this = expressions[0] -3965 if expressions[1:]: -3966 this = _wrap_operator(this) -3967 for expression in expressions[1:]: -3968 this = operator(this=this, expression=_wrap_operator(expression)) -3969 return this -3970 -3971 -3972def _wrap_operator(expression): -3973 if isinstance(expression, (And, Or, Not)): -3974 expression = Paren(this=expression) -3975 return expression -3976 +3962def _apply_conjunction_builder( +3963 *expressions, +3964 instance, +3965 arg, +3966 into=None, +3967 append=True, +3968 copy=True, +3969 dialect=None, +3970 **opts, +3971): +3972 expressions = [exp for exp in expressions if exp is not None and exp != ""] +3973 if not expressions: +3974 return instance +3975 +3976 inst = _maybe_copy(instance, copy) 3977 -3978def union(left, right, distinct=True, dialect=None, **opts): -3979 """ -3980 Initializes a syntax tree from one UNION expression. +3978 existing = inst.args.get(arg) +3979 if append and existing is not None: +3980 expressions = [existing.this if into else existing] + list(expressions) 3981 -3982 Example: -3983 >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql() -3984 'SELECT * FROM foo UNION SELECT * FROM bla' -3985 -3986 Args: -3987 left (str | Expression): the SQL code string corresponding to the left-hand side. -3988 If an `Expression` instance is passed, it will be used as-is. -3989 right (str | Expression): the SQL code string corresponding to the right-hand side. -3990 If an `Expression` instance is passed, it will be used as-is. -3991 distinct (bool): set the DISTINCT flag if and only if this is true. -3992 dialect (str): the dialect used to parse the input expression. -3993 opts (kwargs): other options to use to parse the input expressions. -3994 Returns: -3995 Union: the syntax tree for the UNION expression. -3996 """ -3997 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) -3998 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) -3999 -4000 return Union(this=left, expression=right, distinct=distinct) -4001 +3982 node = and_(*expressions, dialect=dialect, **opts) +3983 +3984 inst.set(arg, into(this=node) if into else node) +3985 return inst +3986 +3987 +3988def _combine(expressions, operator, dialect=None, **opts): +3989 expressions = [condition(expression, dialect=dialect, **opts) for expression in expressions] +3990 this = expressions[0] +3991 if expressions[1:]: +3992 this = _wrap_operator(this) +3993 for expression in expressions[1:]: +3994 this = operator(this=this, expression=_wrap_operator(expression)) +3995 return this +3996 +3997 +3998def _wrap_operator(expression): +3999 if isinstance(expression, (And, Or, Not)): +4000 expression = Paren(this=expression) +4001 return expression 4002 -4003def intersect(left, right, distinct=True, dialect=None, **opts): -4004 """ -4005 Initializes a syntax tree from one INTERSECT expression. -4006 -4007 Example: -4008 >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql() -4009 'SELECT * FROM foo INTERSECT SELECT * FROM bla' -4010 -4011 Args: -4012 left (str | Expression): the SQL code string corresponding to the left-hand side. -4013 If an `Expression` instance is passed, it will be used as-is. -4014 right (str | Expression): the SQL code string corresponding to the right-hand side. -4015 If an `Expression` instance is passed, it will be used as-is. -4016 distinct (bool): set the DISTINCT flag if and only if this is true. -4017 dialect (str): the dialect used to parse the input expression. -4018 opts (kwargs): other options to use to parse the input expressions. -4019 Returns: -4020 Intersect: the syntax tree for the INTERSECT expression. -4021 """ -4022 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) -4023 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) -4024 -4025 return Intersect(this=left, expression=right, distinct=distinct) -4026 +4003 +4004def union(left, right, distinct=True, dialect=None, **opts): +4005 """ +4006 Initializes a syntax tree from one UNION expression. +4007 +4008 Example: +4009 >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql() +4010 'SELECT * FROM foo UNION SELECT * FROM bla' +4011 +4012 Args: +4013 left (str | Expression): the SQL code string corresponding to the left-hand side. +4014 If an `Expression` instance is passed, it will be used as-is. +4015 right (str | Expression): the SQL code string corresponding to the right-hand side. +4016 If an `Expression` instance is passed, it will be used as-is. +4017 distinct (bool): set the DISTINCT flag if and only if this is true. +4018 dialect (str): the dialect used to parse the input expression. +4019 opts (kwargs): other options to use to parse the input expressions. +4020 Returns: +4021 Union: the syntax tree for the UNION expression. +4022 """ +4023 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4024 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4025 +4026 return Union(this=left, expression=right, distinct=distinct) 4027 -4028def except_(left, right, distinct=True, dialect=None, **opts): -4029 """ -4030 Initializes a syntax tree from one EXCEPT expression. -4031 -4032 Example: -4033 >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql() -4034 'SELECT * FROM foo EXCEPT SELECT * FROM bla' -4035 -4036 Args: -4037 left (str | Expression): the SQL code string corresponding to the left-hand side. -4038 If an `Expression` instance is passed, it will be used as-is. -4039 right (str | Expression): the SQL code string corresponding to the right-hand side. -4040 If an `Expression` instance is passed, it will be used as-is. -4041 distinct (bool): set the DISTINCT flag if and only if this is true. -4042 dialect (str): the dialect used to parse the input expression. -4043 opts (kwargs): other options to use to parse the input expressions. -4044 Returns: -4045 Except: the syntax tree for the EXCEPT statement. -4046 """ -4047 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) -4048 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) -4049 -4050 return Except(this=left, expression=right, distinct=distinct) -4051 +4028 +4029def intersect(left, right, distinct=True, dialect=None, **opts): +4030 """ +4031 Initializes a syntax tree from one INTERSECT expression. +4032 +4033 Example: +4034 >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql() +4035 'SELECT * FROM foo INTERSECT SELECT * FROM bla' +4036 +4037 Args: +4038 left (str | Expression): the SQL code string corresponding to the left-hand side. +4039 If an `Expression` instance is passed, it will be used as-is. +4040 right (str | Expression): the SQL code string corresponding to the right-hand side. +4041 If an `Expression` instance is passed, it will be used as-is. +4042 distinct (bool): set the DISTINCT flag if and only if this is true. +4043 dialect (str): the dialect used to parse the input expression. +4044 opts (kwargs): other options to use to parse the input expressions. +4045 Returns: +4046 Intersect: the syntax tree for the INTERSECT expression. +4047 """ +4048 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4049 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4050 +4051 return Intersect(this=left, expression=right, distinct=distinct) 4052 -4053def select(*expressions: str | Expression, dialect: DialectType = None, **opts) -> Select: -4054 """ -4055 Initializes a syntax tree from one or multiple SELECT expressions. -4056 -4057 Example: -4058 >>> select("col1", "col2").from_("tbl").sql() -4059 'SELECT col1, col2 FROM tbl' -4060 -4061 Args: -4062 *expressions: the SQL code string to parse as the expressions of a -4063 SELECT statement. If an Expression instance is passed, this is used as-is. -4064 dialect: the dialect used to parse the input expressions (in the case that an -4065 input expression is a SQL string). -4066 **opts: other options to use to parse the input expressions (again, in the case -4067 that an input expression is a SQL string). -4068 -4069 Returns: -4070 Select: the syntax tree for the SELECT statement. -4071 """ -4072 return Select().select(*expressions, dialect=dialect, **opts) -4073 -4074 -4075def from_(*expressions, dialect=None, **opts) -> Select: -4076 """ -4077 Initializes a syntax tree from a FROM expression. +4053 +4054def except_(left, right, distinct=True, dialect=None, **opts): +4055 """ +4056 Initializes a syntax tree from one EXCEPT expression. +4057 +4058 Example: +4059 >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql() +4060 'SELECT * FROM foo EXCEPT SELECT * FROM bla' +4061 +4062 Args: +4063 left (str | Expression): the SQL code string corresponding to the left-hand side. +4064 If an `Expression` instance is passed, it will be used as-is. +4065 right (str | Expression): the SQL code string corresponding to the right-hand side. +4066 If an `Expression` instance is passed, it will be used as-is. +4067 distinct (bool): set the DISTINCT flag if and only if this is true. +4068 dialect (str): the dialect used to parse the input expression. +4069 opts (kwargs): other options to use to parse the input expressions. +4070 Returns: +4071 Except: the syntax tree for the EXCEPT statement. +4072 """ +4073 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4074 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4075 +4076 return Except(this=left, expression=right, distinct=distinct) +4077 4078 -4079 Example: -4080 >>> from_("tbl").select("col1", "col2").sql() -4081 'SELECT col1, col2 FROM tbl' +4079def select(*expressions: str | Expression, dialect: DialectType = None, **opts) -> Select: +4080 """ +4081 Initializes a syntax tree from one or multiple SELECT expressions. 4082 -4083 Args: -4084 *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a -4085 SELECT statement. If an Expression instance is passed, this is used as-is. -4086 dialect (str): the dialect used to parse the input expression (in the case that the -4087 input expression is a SQL string). -4088 **opts: other options to use to parse the input expressions (again, in the case -4089 that the input expression is a SQL string). -4090 -4091 Returns: -4092 Select: the syntax tree for the SELECT statement. -4093 """ -4094 return Select().from_(*expressions, dialect=dialect, **opts) -4095 -4096 -4097def update(table, properties, where=None, from_=None, dialect=None, **opts) -> Update: -4098 """ -4099 Creates an update statement. +4083 Example: +4084 >>> select("col1", "col2").from_("tbl").sql() +4085 'SELECT col1, col2 FROM tbl' +4086 +4087 Args: +4088 *expressions: the SQL code string to parse as the expressions of a +4089 SELECT statement. If an Expression instance is passed, this is used as-is. +4090 dialect: the dialect used to parse the input expressions (in the case that an +4091 input expression is a SQL string). +4092 **opts: other options to use to parse the input expressions (again, in the case +4093 that an input expression is a SQL string). +4094 +4095 Returns: +4096 Select: the syntax tree for the SELECT statement. +4097 """ +4098 return Select().select(*expressions, dialect=dialect, **opts) +4099 4100 -4101 Example: -4102 >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql() -4103 "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1" +4101def from_(*expressions, dialect=None, **opts) -> Select: +4102 """ +4103 Initializes a syntax tree from a FROM expression. 4104 -4105 Args: -4106 *properties (Dict[str, Any]): dictionary of properties to set which are -4107 auto converted to sql objects eg None -> NULL -4108 where (str): sql conditional parsed into a WHERE statement -4109 from_ (str): sql statement parsed into a FROM statement -4110 dialect (str): the dialect used to parse the input expressions. -4111 **opts: other options to use to parse the input expressions. -4112 -4113 Returns: -4114 Update: the syntax tree for the UPDATE statement. -4115 """ -4116 update = Update(this=maybe_parse(table, into=Table, dialect=dialect)) -4117 update.set( -4118 "expressions", -4119 [ -4120 EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v)) -4121 for k, v in properties.items() -4122 ], -4123 ) -4124 if from_: -4125 update.set( -4126 "from", -4127 maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts), -4128 ) -4129 if isinstance(where, Condition): -4130 where = Where(this=where) -4131 if where: -4132 update.set( -4133 "where", -4134 maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts), -4135 ) -4136 return update -4137 +4105 Example: +4106 >>> from_("tbl").select("col1", "col2").sql() +4107 'SELECT col1, col2 FROM tbl' +4108 +4109 Args: +4110 *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a +4111 SELECT statement. If an Expression instance is passed, this is used as-is. +4112 dialect (str): the dialect used to parse the input expression (in the case that the +4113 input expression is a SQL string). +4114 **opts: other options to use to parse the input expressions (again, in the case +4115 that the input expression is a SQL string). +4116 +4117 Returns: +4118 Select: the syntax tree for the SELECT statement. +4119 """ +4120 return Select().from_(*expressions, dialect=dialect, **opts) +4121 +4122 +4123def update(table, properties, where=None, from_=None, dialect=None, **opts) -> Update: +4124 """ +4125 Creates an update statement. +4126 +4127 Example: +4128 >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql() +4129 "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1" +4130 +4131 Args: +4132 *properties (Dict[str, Any]): dictionary of properties to set which are +4133 auto converted to sql objects eg None -> NULL +4134 where (str): sql conditional parsed into a WHERE statement +4135 from_ (str): sql statement parsed into a FROM statement +4136 dialect (str): the dialect used to parse the input expressions. +4137 **opts: other options to use to parse the input expressions. 4138 -4139def delete(table, where=None, dialect=None, **opts) -> Delete: -4140 """ -4141 Builds a delete statement. -4142 -4143 Example: -4144 >>> delete("my_table", where="id > 1").sql() -4145 'DELETE FROM my_table WHERE id > 1' -4146 -4147 Args: -4148 where (str|Condition): sql conditional parsed into a WHERE statement -4149 dialect (str): the dialect used to parse the input expressions. -4150 **opts: other options to use to parse the input expressions. -4151 -4152 Returns: -4153 Delete: the syntax tree for the DELETE statement. -4154 """ -4155 return Delete( -4156 this=maybe_parse(table, into=Table, dialect=dialect, **opts), -4157 where=Where(this=where) -4158 if isinstance(where, Condition) -4159 else maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts), -4160 ) -4161 -4162 -4163def condition(expression, dialect=None, **opts) -> Condition: -4164 """ -4165 Initialize a logical condition expression. -4166 -4167 Example: -4168 >>> condition("x=1").sql() -4169 'x = 1' -4170 -4171 This is helpful for composing larger logical syntax trees: -4172 >>> where = condition("x=1") -4173 >>> where = where.and_("y=1") -4174 >>> Select().from_("tbl").select("*").where(where).sql() -4175 'SELECT * FROM tbl WHERE x = 1 AND y = 1' -4176 -4177 Args: -4178 *expression (str | Expression): the SQL code string to parse. -4179 If an Expression instance is passed, this is used as-is. -4180 dialect (str): the dialect used to parse the input expression (in the case that the -4181 input expression is a SQL string). -4182 **opts: other options to use to parse the input expressions (again, in the case -4183 that the input expression is a SQL string). -4184 -4185 Returns: -4186 Condition: the expression -4187 """ -4188 return maybe_parse( # type: ignore -4189 expression, -4190 into=Condition, -4191 dialect=dialect, -4192 **opts, -4193 ) -4194 -4195 -4196def and_(*expressions, dialect=None, **opts) -> And: -4197 """ -4198 Combine multiple conditions with an AND logical operator. -4199 -4200 Example: -4201 >>> and_("x=1", and_("y=1", "z=1")).sql() -4202 'x = 1 AND (y = 1 AND z = 1)' -4203 -4204 Args: -4205 *expressions (str | Expression): the SQL code strings to parse. -4206 If an Expression instance is passed, this is used as-is. -4207 dialect (str): the dialect used to parse the input expression. -4208 **opts: other options to use to parse the input expressions. -4209 -4210 Returns: -4211 And: the new condition -4212 """ -4213 return _combine(expressions, And, dialect, **opts) -4214 -4215 -4216def or_(*expressions, dialect=None, **opts) -> Or: -4217 """ -4218 Combine multiple conditions with an OR logical operator. -4219 -4220 Example: -4221 >>> or_("x=1", or_("y=1", "z=1")).sql() -4222 'x = 1 OR (y = 1 OR z = 1)' -4223 -4224 Args: -4225 *expressions (str | Expression): the SQL code strings to parse. -4226 If an Expression instance is passed, this is used as-is. -4227 dialect (str): the dialect used to parse the input expression. -4228 **opts: other options to use to parse the input expressions. +4139 Returns: +4140 Update: the syntax tree for the UPDATE statement. +4141 """ +4142 update = Update(this=maybe_parse(table, into=Table, dialect=dialect)) +4143 update.set( +4144 "expressions", +4145 [ +4146 EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v)) +4147 for k, v in properties.items() +4148 ], +4149 ) +4150 if from_: +4151 update.set( +4152 "from", +4153 maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts), +4154 ) +4155 if isinstance(where, Condition): +4156 where = Where(this=where) +4157 if where: +4158 update.set( +4159 "where", +4160 maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts), +4161 ) +4162 return update +4163 +4164 +4165def delete(table, where=None, dialect=None, **opts) -> Delete: +4166 """ +4167 Builds a delete statement. +4168 +4169 Example: +4170 >>> delete("my_table", where="id > 1").sql() +4171 'DELETE FROM my_table WHERE id > 1' +4172 +4173 Args: +4174 where (str|Condition): sql conditional parsed into a WHERE statement +4175 dialect (str): the dialect used to parse the input expressions. +4176 **opts: other options to use to parse the input expressions. +4177 +4178 Returns: +4179 Delete: the syntax tree for the DELETE statement. +4180 """ +4181 return Delete( +4182 this=maybe_parse(table, into=Table, dialect=dialect, **opts), +4183 where=Where(this=where) +4184 if isinstance(where, Condition) +4185 else maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts), +4186 ) +4187 +4188 +4189def condition(expression, dialect=None, **opts) -> Condition: +4190 """ +4191 Initialize a logical condition expression. +4192 +4193 Example: +4194 >>> condition("x=1").sql() +4195 'x = 1' +4196 +4197 This is helpful for composing larger logical syntax trees: +4198 >>> where = condition("x=1") +4199 >>> where = where.and_("y=1") +4200 >>> Select().from_("tbl").select("*").where(where).sql() +4201 'SELECT * FROM tbl WHERE x = 1 AND y = 1' +4202 +4203 Args: +4204 *expression (str | Expression): the SQL code string to parse. +4205 If an Expression instance is passed, this is used as-is. +4206 dialect (str): the dialect used to parse the input expression (in the case that the +4207 input expression is a SQL string). +4208 **opts: other options to use to parse the input expressions (again, in the case +4209 that the input expression is a SQL string). +4210 +4211 Returns: +4212 Condition: the expression +4213 """ +4214 return maybe_parse( # type: ignore +4215 expression, +4216 into=Condition, +4217 dialect=dialect, +4218 **opts, +4219 ) +4220 +4221 +4222def and_(*expressions, dialect=None, **opts) -> And: +4223 """ +4224 Combine multiple conditions with an AND logical operator. +4225 +4226 Example: +4227 >>> and_("x=1", and_("y=1", "z=1")).sql() +4228 'x = 1 AND (y = 1 AND z = 1)' 4229 -4230 Returns: -4231 Or: the new condition -4232 """ -4233 return _combine(expressions, Or, dialect, **opts) -4234 +4230 Args: +4231 *expressions (str | Expression): the SQL code strings to parse. +4232 If an Expression instance is passed, this is used as-is. +4233 dialect (str): the dialect used to parse the input expression. +4234 **opts: other options to use to parse the input expressions. 4235 -4236def not_(expression, dialect=None, **opts) -> Not: -4237 """ -4238 Wrap a condition with a NOT operator. -4239 -4240 Example: -4241 >>> not_("this_suit='black'").sql() -4242 "NOT this_suit = 'black'" -4243 -4244 Args: -4245 expression (str | Expression): the SQL code strings to parse. -4246 If an Expression instance is passed, this is used as-is. -4247 dialect (str): the dialect used to parse the input expression. -4248 **opts: other options to use to parse the input expressions. +4236 Returns: +4237 And: the new condition +4238 """ +4239 return _combine(expressions, And, dialect, **opts) +4240 +4241 +4242def or_(*expressions, dialect=None, **opts) -> Or: +4243 """ +4244 Combine multiple conditions with an OR logical operator. +4245 +4246 Example: +4247 >>> or_("x=1", or_("y=1", "z=1")).sql() +4248 'x = 1 OR (y = 1 OR z = 1)' 4249 -4250 Returns: -4251 Not: the new condition -4252 """ -4253 this = condition( -4254 expression, -4255 dialect=dialect, -4256 **opts, -4257 ) -4258 return Not(this=_wrap_operator(this)) -4259 +4250 Args: +4251 *expressions (str | Expression): the SQL code strings to parse. +4252 If an Expression instance is passed, this is used as-is. +4253 dialect (str): the dialect used to parse the input expression. +4254 **opts: other options to use to parse the input expressions. +4255 +4256 Returns: +4257 Or: the new condition +4258 """ +4259 return _combine(expressions, Or, dialect, **opts) 4260 -4261def paren(expression) -> Paren: -4262 return Paren(this=expression) -4263 -4264 -4265SAFE_IDENTIFIER_RE = re.compile(r"^[_a-zA-Z][\w]*$") -4266 -4267 -4268@t.overload -4269def to_identifier(name: None, quoted: t.Optional[bool] = None) -> None: -4270 ... -4271 -4272 -4273@t.overload -4274def to_identifier(name: str | Identifier, quoted: t.Optional[bool] = None) -> Identifier: -4275 ... -4276 -4277 -4278def to_identifier(name, quoted=None): -4279 """Builds an identifier. -4280 -4281 Args: -4282 name: The name to turn into an identifier. -4283 quoted: Whether or not force quote the identifier. -4284 -4285 Returns: -4286 The identifier ast node. -4287 """ -4288 -4289 if name is None: -4290 return None -4291 -4292 if isinstance(name, Identifier): -4293 identifier = name -4294 elif isinstance(name, str): -4295 identifier = Identifier( -4296 this=name, -4297 quoted=not re.match(SAFE_IDENTIFIER_RE, name) if quoted is None else quoted, -4298 ) -4299 else: -4300 raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}") -4301 return identifier +4261 +4262def not_(expression, dialect=None, **opts) -> Not: +4263 """ +4264 Wrap a condition with a NOT operator. +4265 +4266 Example: +4267 >>> not_("this_suit='black'").sql() +4268 "NOT this_suit = 'black'" +4269 +4270 Args: +4271 expression (str | Expression): the SQL code strings to parse. +4272 If an Expression instance is passed, this is used as-is. +4273 dialect (str): the dialect used to parse the input expression. +4274 **opts: other options to use to parse the input expressions. +4275 +4276 Returns: +4277 Not: the new condition +4278 """ +4279 this = condition( +4280 expression, +4281 dialect=dialect, +4282 **opts, +4283 ) +4284 return Not(this=_wrap_operator(this)) +4285 +4286 +4287def paren(expression) -> Paren: +4288 return Paren(this=expression) +4289 +4290 +4291SAFE_IDENTIFIER_RE = re.compile(r"^[_a-zA-Z][\w]*$") +4292 +4293 +4294@t.overload +4295def to_identifier(name: None, quoted: t.Optional[bool] = None) -> None: +4296 ... +4297 +4298 +4299@t.overload +4300def to_identifier(name: str | Identifier, quoted: t.Optional[bool] = None) -> Identifier: +4301 ... 4302 4303 -4304INTERVAL_STRING_RE = re.compile(r"\s*([0-9]+)\s*([a-zA-Z]+)\s*") -4305 +4304def to_identifier(name, quoted=None): +4305 """Builds an identifier. 4306 -4307def to_interval(interval: str | Literal) -> Interval: -4308 """Builds an interval expression from a string like '1 day' or '5 months'.""" -4309 if isinstance(interval, Literal): -4310 if not interval.is_string: -4311 raise ValueError("Invalid interval string.") -4312 -4313 interval = interval.this +4307 Args: +4308 name: The name to turn into an identifier. +4309 quoted: Whether or not force quote the identifier. +4310 +4311 Returns: +4312 The identifier ast node. +4313 """ 4314 -4315 interval_parts = INTERVAL_STRING_RE.match(interval) # type: ignore -4316 -4317 if not interval_parts: -4318 raise ValueError("Invalid interval string.") -4319 -4320 return Interval( -4321 this=Literal.string(interval_parts.group(1)), -4322 unit=Var(this=interval_parts.group(2)), -4323 ) -4324 -4325 -4326@t.overload -4327def to_table(sql_path: str | Table, **kwargs) -> Table: -4328 ... +4315 if name is None: +4316 return None +4317 +4318 if isinstance(name, Identifier): +4319 identifier = name +4320 elif isinstance(name, str): +4321 identifier = Identifier( +4322 this=name, +4323 quoted=not re.match(SAFE_IDENTIFIER_RE, name) if quoted is None else quoted, +4324 ) +4325 else: +4326 raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}") +4327 return identifier +4328 4329 -4330 -4331@t.overload -4332def to_table(sql_path: None, **kwargs) -> None: -4333 ... -4334 -4335 -4336def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]: -4337 """ -4338 Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional. -4339 If a table is passed in then that table is returned. +4330INTERVAL_STRING_RE = re.compile(r"\s*([0-9]+)\s*([a-zA-Z]+)\s*") +4331 +4332 +4333def to_interval(interval: str | Literal) -> Interval: +4334 """Builds an interval expression from a string like '1 day' or '5 months'.""" +4335 if isinstance(interval, Literal): +4336 if not interval.is_string: +4337 raise ValueError("Invalid interval string.") +4338 +4339 interval = interval.this 4340 -4341 Args: -4342 sql_path: a `[catalog].[schema].[table]` string. -4343 -4344 Returns: -4345 A table expression. -4346 """ -4347 if sql_path is None or isinstance(sql_path, Table): -4348 return sql_path -4349 if not isinstance(sql_path, str): -4350 raise ValueError(f"Invalid type provided for a table: {type(sql_path)}") +4341 interval_parts = INTERVAL_STRING_RE.match(interval) # type: ignore +4342 +4343 if not interval_parts: +4344 raise ValueError("Invalid interval string.") +4345 +4346 return Interval( +4347 this=Literal.string(interval_parts.group(1)), +4348 unit=Var(this=interval_parts.group(2)), +4349 ) +4350 4351 -4352 catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3)) -4353 return Table(this=table_name, db=db, catalog=catalog, **kwargs) -4354 +4352@t.overload +4353def to_table(sql_path: str | Table, **kwargs) -> Table: +4354 ... 4355 -4356def to_column(sql_path: str | Column, **kwargs) -> Column: -4357 """ -4358 Create a column from a `[table].[column]` sql path. Schema is optional. -4359 -4360 If a column is passed in then that column is returned. +4356 +4357@t.overload +4358def to_table(sql_path: None, **kwargs) -> None: +4359 ... +4360 4361 -4362 Args: -4363 sql_path: `[table].[column]` string -4364 Returns: -4365 Table: A column expression -4366 """ -4367 if sql_path is None or isinstance(sql_path, Column): -4368 return sql_path -4369 if not isinstance(sql_path, str): -4370 raise ValueError(f"Invalid type provided for column: {type(sql_path)}") -4371 table_name, column_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 2)) -4372 return Column(this=column_name, table=table_name, **kwargs) -4373 -4374 -4375def alias_( -4376 expression: str | Expression, -4377 alias: str | Identifier, -4378 table: bool | t.Sequence[str | Identifier] = False, -4379 quoted: t.Optional[bool] = None, -4380 dialect: DialectType = None, -4381 **opts, -4382): -4383 """Create an Alias expression. -4384 -4385 Example: -4386 >>> alias_('foo', 'bar').sql() -4387 'foo AS bar' -4388 -4389 >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql() -4390 '(SELECT 1, 2) AS bar(a, b)' -4391 -4392 Args: -4393 expression: the SQL code strings to parse. -4394 If an Expression instance is passed, this is used as-is. -4395 alias: the alias name to use. If the name has -4396 special characters it is quoted. -4397 table: Whether or not to create a table alias, can also be a list of columns. -4398 quoted: whether or not to quote the alias -4399 dialect: the dialect used to parse the input expression. -4400 **opts: other options to use to parse the input expressions. -4401 -4402 Returns: -4403 Alias: the aliased expression -4404 """ -4405 exp = maybe_parse(expression, dialect=dialect, **opts) -4406 alias = to_identifier(alias, quoted=quoted) -4407 -4408 if table: -4409 table_alias = TableAlias(this=alias) -4410 exp.set("alias", table_alias) -4411 -4412 if not isinstance(table, bool): -4413 for column in table: -4414 table_alias.append("columns", to_identifier(column, quoted=quoted)) -4415 -4416 return exp +4362def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]: +4363 """ +4364 Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional. +4365 If a table is passed in then that table is returned. +4366 +4367 Args: +4368 sql_path: a `[catalog].[schema].[table]` string. +4369 +4370 Returns: +4371 A table expression. +4372 """ +4373 if sql_path is None or isinstance(sql_path, Table): +4374 return sql_path +4375 if not isinstance(sql_path, str): +4376 raise ValueError(f"Invalid type provided for a table: {type(sql_path)}") +4377 +4378 catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3)) +4379 return Table(this=table_name, db=db, catalog=catalog, **kwargs) +4380 +4381 +4382def to_column(sql_path: str | Column, **kwargs) -> Column: +4383 """ +4384 Create a column from a `[table].[column]` sql path. Schema is optional. +4385 +4386 If a column is passed in then that column is returned. +4387 +4388 Args: +4389 sql_path: `[table].[column]` string +4390 Returns: +4391 Table: A column expression +4392 """ +4393 if sql_path is None or isinstance(sql_path, Column): +4394 return sql_path +4395 if not isinstance(sql_path, str): +4396 raise ValueError(f"Invalid type provided for column: {type(sql_path)}") +4397 table_name, column_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 2)) +4398 return Column(this=column_name, table=table_name, **kwargs) +4399 +4400 +4401def alias_( +4402 expression: str | Expression, +4403 alias: str | Identifier, +4404 table: bool | t.Sequence[str | Identifier] = False, +4405 quoted: t.Optional[bool] = None, +4406 dialect: DialectType = None, +4407 **opts, +4408): +4409 """Create an Alias expression. +4410 +4411 Example: +4412 >>> alias_('foo', 'bar').sql() +4413 'foo AS bar' +4414 +4415 >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql() +4416 '(SELECT 1, 2) AS bar(a, b)' 4417 -4418 # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in -4419 # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node -4420 # for the complete Window expression. -4421 # -4422 # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls -4423 -4424 if "alias" in exp.arg_types and not isinstance(exp, Window): -4425 exp = exp.copy() -4426 exp.set("alias", alias) -4427 return exp -4428 return Alias(this=exp, alias=alias) -4429 -4430 -4431def subquery(expression, alias=None, dialect=None, **opts): -4432 """ -4433 Build a subquery expression. -4434 -4435 Example: -4436 >>> subquery('select x from tbl', 'bar').select('x').sql() -4437 'SELECT x FROM (SELECT x FROM tbl) AS bar' -4438 -4439 Args: -4440 expression (str | Expression): the SQL code strings to parse. -4441 If an Expression instance is passed, this is used as-is. -4442 alias (str | Expression): the alias name to use. -4443 dialect (str): the dialect used to parse the input expression. -4444 **opts: other options to use to parse the input expressions. -4445 -4446 Returns: -4447 Select: a new select with the subquery expression included -4448 """ +4418 Args: +4419 expression: the SQL code strings to parse. +4420 If an Expression instance is passed, this is used as-is. +4421 alias: the alias name to use. If the name has +4422 special characters it is quoted. +4423 table: Whether or not to create a table alias, can also be a list of columns. +4424 quoted: whether or not to quote the alias +4425 dialect: the dialect used to parse the input expression. +4426 **opts: other options to use to parse the input expressions. +4427 +4428 Returns: +4429 Alias: the aliased expression +4430 """ +4431 exp = maybe_parse(expression, dialect=dialect, **opts) +4432 alias = to_identifier(alias, quoted=quoted) +4433 +4434 if table: +4435 table_alias = TableAlias(this=alias) +4436 exp.set("alias", table_alias) +4437 +4438 if not isinstance(table, bool): +4439 for column in table: +4440 table_alias.append("columns", to_identifier(column, quoted=quoted)) +4441 +4442 return exp +4443 +4444 # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in +4445 # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node +4446 # for the complete Window expression. +4447 # +4448 # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls 4449 -4450 expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias) -4451 return Select().from_(expression, dialect=dialect, **opts) -4452 -4453 -4454def column( -4455 col: str | Identifier, -4456 table: t.Optional[str | Identifier] = None, -4457 schema: t.Optional[str | Identifier] = None, -4458 quoted: t.Optional[bool] = None, -4459) -> Column: -4460 """ -4461 Build a Column. -4462 -4463 Args: -4464 col: column name -4465 table: table name -4466 schema: schema name -4467 quoted: whether or not to force quote each part -4468 Returns: -4469 Column: column instance -4470 """ -4471 return Column( -4472 this=to_identifier(col, quoted=quoted), -4473 table=to_identifier(table, quoted=quoted), -4474 schema=to_identifier(schema, quoted=quoted), -4475 ) -4476 -4477 -4478def cast(expression: str | Expression, to: str | DataType | DataType.Type, **opts) -> Cast: -4479 """Cast an expression to a data type. -4480 -4481 Example: -4482 >>> cast('x + 1', 'int').sql() -4483 'CAST(x + 1 AS INT)' -4484 -4485 Args: -4486 expression: The expression to cast. -4487 to: The datatype to cast to. +4450 if "alias" in exp.arg_types and not isinstance(exp, Window): +4451 exp = exp.copy() +4452 exp.set("alias", alias) +4453 return exp +4454 return Alias(this=exp, alias=alias) +4455 +4456 +4457def subquery(expression, alias=None, dialect=None, **opts): +4458 """ +4459 Build a subquery expression. +4460 +4461 Example: +4462 >>> subquery('select x from tbl', 'bar').select('x').sql() +4463 'SELECT x FROM (SELECT x FROM tbl) AS bar' +4464 +4465 Args: +4466 expression (str | Expression): the SQL code strings to parse. +4467 If an Expression instance is passed, this is used as-is. +4468 alias (str | Expression): the alias name to use. +4469 dialect (str): the dialect used to parse the input expression. +4470 **opts: other options to use to parse the input expressions. +4471 +4472 Returns: +4473 Select: a new select with the subquery expression included +4474 """ +4475 +4476 expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias) +4477 return Select().from_(expression, dialect=dialect, **opts) +4478 +4479 +4480def column( +4481 col: str | Identifier, +4482 table: t.Optional[str | Identifier] = None, +4483 schema: t.Optional[str | Identifier] = None, +4484 quoted: t.Optional[bool] = None, +4485) -> Column: +4486 """ +4487 Build a Column. 4488 -4489 Returns: -4490 A cast node. -4491 """ -4492 expression = maybe_parse(expression, **opts) -4493 return Cast(this=expression, to=DataType.build(to, **opts)) -4494 -4495 -4496def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table: -4497 """Build a Table. -4498 -4499 Args: -4500 table (str | Expression): column name -4501 db (str | Expression): db name -4502 catalog (str | Expression): catalog name +4489 Args: +4490 col: column name +4491 table: table name +4492 schema: schema name +4493 quoted: whether or not to force quote each part +4494 Returns: +4495 Column: column instance +4496 """ +4497 return Column( +4498 this=to_identifier(col, quoted=quoted), +4499 table=to_identifier(table, quoted=quoted), +4500 schema=to_identifier(schema, quoted=quoted), +4501 ) +4502 4503 -4504 Returns: -4505 Table: table instance -4506 """ -4507 return Table( -4508 this=to_identifier(table, quoted=quoted), -4509 db=to_identifier(db, quoted=quoted), -4510 catalog=to_identifier(catalog, quoted=quoted), -4511 alias=TableAlias(this=to_identifier(alias)) if alias else None, -4512 ) -4513 +4504def cast(expression: str | Expression, to: str | DataType | DataType.Type, **opts) -> Cast: +4505 """Cast an expression to a data type. +4506 +4507 Example: +4508 >>> cast('x + 1', 'int').sql() +4509 'CAST(x + 1 AS INT)' +4510 +4511 Args: +4512 expression: The expression to cast. +4513 to: The datatype to cast to. 4514 -4515def values( -4516 values: t.Iterable[t.Tuple[t.Any, ...]], -4517 alias: t.Optional[str] = None, -4518 columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None, -4519) -> Values: -4520 """Build VALUES statement. +4515 Returns: +4516 A cast node. +4517 """ +4518 expression = maybe_parse(expression, **opts) +4519 return Cast(this=expression, to=DataType.build(to, **opts)) +4520 4521 -4522 Example: -4523 >>> values([(1, '2')]).sql() -4524 "VALUES (1, '2')" -4525 -4526 Args: -4527 values: values statements that will be converted to SQL -4528 alias: optional alias -4529 columns: Optional list of ordered column names or ordered dictionary of column names to types. -4530 If either are provided then an alias is also required. -4531 If a dictionary is provided then the first column of the values will be casted to the expected type -4532 in order to help with type inference. -4533 -4534 Returns: -4535 Values: the Values expression object -4536 """ -4537 if columns and not alias: -4538 raise ValueError("Alias is required when providing columns") -4539 table_alias = ( -4540 TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns]) -4541 if columns -4542 else TableAlias(this=to_identifier(alias) if alias else None) -4543 ) -4544 expressions = [convert(tup) for tup in values] -4545 if columns and isinstance(columns, dict): -4546 types = list(columns.values()) -4547 expressions[0].set( -4548 "expressions", -4549 [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)], -4550 ) -4551 return Values( -4552 expressions=expressions, -4553 alias=table_alias, -4554 ) -4555 -4556 -4557def var(name: t.Optional[str | Expression]) -> Var: -4558 """Build a SQL variable. +4522def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table: +4523 """Build a Table. +4524 +4525 Args: +4526 table (str | Expression): column name +4527 db (str | Expression): db name +4528 catalog (str | Expression): catalog name +4529 +4530 Returns: +4531 Table: table instance +4532 """ +4533 return Table( +4534 this=to_identifier(table, quoted=quoted), +4535 db=to_identifier(db, quoted=quoted), +4536 catalog=to_identifier(catalog, quoted=quoted), +4537 alias=TableAlias(this=to_identifier(alias)) if alias else None, +4538 ) +4539 +4540 +4541def values( +4542 values: t.Iterable[t.Tuple[t.Any, ...]], +4543 alias: t.Optional[str] = None, +4544 columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None, +4545) -> Values: +4546 """Build VALUES statement. +4547 +4548 Example: +4549 >>> values([(1, '2')]).sql() +4550 "VALUES (1, '2')" +4551 +4552 Args: +4553 values: values statements that will be converted to SQL +4554 alias: optional alias +4555 columns: Optional list of ordered column names or ordered dictionary of column names to types. +4556 If either are provided then an alias is also required. +4557 If a dictionary is provided then the first column of the values will be casted to the expected type +4558 in order to help with type inference. 4559 -4560 Example: -4561 >>> repr(var('x')) -4562 '(VAR this: x)' -4563 -4564 >>> repr(var(column('x', table='y'))) -4565 '(VAR this: x)' -4566 -4567 Args: -4568 name: The name of the var or an expression who's name will become the var. -4569 -4570 Returns: -4571 The new variable node. -4572 """ -4573 if not name: -4574 raise ValueError(f"Cannot convert empty name into var.") -4575 -4576 if isinstance(name, Expression): -4577 name = name.name -4578 return Var(this=name) -4579 -4580 -4581def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable: -4582 """Build ALTER TABLE... RENAME... expression -4583 -4584 Args: -4585 old_name: The old name of the table -4586 new_name: The new name of the table -4587 -4588 Returns: -4589 Alter table expression -4590 """ -4591 old_table = to_table(old_name) -4592 new_table = to_table(new_name) -4593 return AlterTable( -4594 this=old_table, -4595 actions=[ -4596 RenameTable(this=new_table), -4597 ], -4598 ) -4599 -4600 -4601def convert(value) -> Expression: -4602 """Convert a python value into an expression object. -4603 -4604 Raises an error if a conversion is not possible. +4560 Returns: +4561 Values: the Values expression object +4562 """ +4563 if columns and not alias: +4564 raise ValueError("Alias is required when providing columns") +4565 table_alias = ( +4566 TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns]) +4567 if columns +4568 else TableAlias(this=to_identifier(alias) if alias else None) +4569 ) +4570 expressions = [convert(tup) for tup in values] +4571 if columns and isinstance(columns, dict): +4572 types = list(columns.values()) +4573 expressions[0].set( +4574 "expressions", +4575 [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)], +4576 ) +4577 return Values( +4578 expressions=expressions, +4579 alias=table_alias, +4580 ) +4581 +4582 +4583def var(name: t.Optional[str | Expression]) -> Var: +4584 """Build a SQL variable. +4585 +4586 Example: +4587 >>> repr(var('x')) +4588 '(VAR this: x)' +4589 +4590 >>> repr(var(column('x', table='y'))) +4591 '(VAR this: x)' +4592 +4593 Args: +4594 name: The name of the var or an expression who's name will become the var. +4595 +4596 Returns: +4597 The new variable node. +4598 """ +4599 if not name: +4600 raise ValueError(f"Cannot convert empty name into var.") +4601 +4602 if isinstance(name, Expression): +4603 name = name.name +4604 return Var(this=name) 4605 -4606 Args: -4607 value (Any): a python object -4608 -4609 Returns: -4610 Expression: the equivalent expression object -4611 """ -4612 if isinstance(value, Expression): -4613 return value -4614 if value is None: -4615 return NULL -4616 if isinstance(value, bool): -4617 return Boolean(this=value) -4618 if isinstance(value, str): -4619 return Literal.string(value) -4620 if isinstance(value, float) and math.isnan(value): -4621 return NULL -4622 if isinstance(value, numbers.Number): -4623 return Literal.number(value) -4624 if isinstance(value, tuple): -4625 return Tuple(expressions=[convert(v) for v in value]) -4626 if isinstance(value, list): -4627 return Array(expressions=[convert(v) for v in value]) -4628 if isinstance(value, dict): -4629 return Map( -4630 keys=[convert(k) for k in value], -4631 values=[convert(v) for v in value.values()], -4632 ) -4633 if isinstance(value, datetime.datetime): -4634 datetime_literal = Literal.string( -4635 (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat() -4636 ) -4637 return TimeStrToTime(this=datetime_literal) -4638 if isinstance(value, datetime.date): -4639 date_literal = Literal.string(value.strftime("%Y-%m-%d")) -4640 return DateStrToDate(this=date_literal) -4641 raise ValueError(f"Cannot convert {value}") -4642 -4643 -4644def replace_children(expression, fun): -4645 """ -4646 Replace children of an expression with the result of a lambda fun(child) -> exp. -4647 """ -4648 for k, v in expression.args.items(): -4649 is_list_arg = isinstance(v, list) -4650 -4651 child_nodes = v if is_list_arg else [v] -4652 new_child_nodes = [] -4653 -4654 for cn in child_nodes: -4655 if isinstance(cn, Expression): -4656 for child_node in ensure_collection(fun(cn)): -4657 new_child_nodes.append(child_node) -4658 child_node.parent = expression -4659 child_node.arg_key = k -4660 else: -4661 new_child_nodes.append(cn) -4662 -4663 expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0) -4664 -4665 -4666def column_table_names(expression): -4667 """ -4668 Return all table names referenced through columns in an expression. +4606 +4607def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable: +4608 """Build ALTER TABLE... RENAME... expression +4609 +4610 Args: +4611 old_name: The old name of the table +4612 new_name: The new name of the table +4613 +4614 Returns: +4615 Alter table expression +4616 """ +4617 old_table = to_table(old_name) +4618 new_table = to_table(new_name) +4619 return AlterTable( +4620 this=old_table, +4621 actions=[ +4622 RenameTable(this=new_table), +4623 ], +4624 ) +4625 +4626 +4627def convert(value) -> Expression: +4628 """Convert a python value into an expression object. +4629 +4630 Raises an error if a conversion is not possible. +4631 +4632 Args: +4633 value (Any): a python object +4634 +4635 Returns: +4636 Expression: the equivalent expression object +4637 """ +4638 if isinstance(value, Expression): +4639 return value +4640 if value is None: +4641 return NULL +4642 if isinstance(value, bool): +4643 return Boolean(this=value) +4644 if isinstance(value, str): +4645 return Literal.string(value) +4646 if isinstance(value, float) and math.isnan(value): +4647 return NULL +4648 if isinstance(value, numbers.Number): +4649 return Literal.number(value) +4650 if isinstance(value, tuple): +4651 return Tuple(expressions=[convert(v) for v in value]) +4652 if isinstance(value, list): +4653 return Array(expressions=[convert(v) for v in value]) +4654 if isinstance(value, dict): +4655 return Map( +4656 keys=[convert(k) for k in value], +4657 values=[convert(v) for v in value.values()], +4658 ) +4659 if isinstance(value, datetime.datetime): +4660 datetime_literal = Literal.string( +4661 (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat() +4662 ) +4663 return TimeStrToTime(this=datetime_literal) +4664 if isinstance(value, datetime.date): +4665 date_literal = Literal.string(value.strftime("%Y-%m-%d")) +4666 return DateStrToDate(this=date_literal) +4667 raise ValueError(f"Cannot convert {value}") +4668 4669 -4670 Example: -4671 >>> import sqlglot -4672 >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e")) -4673 ['c', 'a'] -4674 -4675 Args: -4676 expression (sqlglot.Expression): expression to find table names -4677 -4678 Returns: -4679 list: A list of unique names -4680 """ -4681 return list(dict.fromkeys(column.table for column in expression.find_all(Column))) -4682 -4683 -4684def table_name(table) -> str: -4685 """Get the full name of a table as a string. -4686 -4687 Args: -4688 table (exp.Table | str): table expression node or string. -4689 -4690 Examples: -4691 >>> from sqlglot import exp, parse_one -4692 >>> table_name(parse_one("select * from a.b.c").find(exp.Table)) -4693 'a.b.c' -4694 -4695 Returns: -4696 The table name. -4697 """ -4698 -4699 table = maybe_parse(table, into=Table) +4670def replace_children(expression, fun): +4671 """ +4672 Replace children of an expression with the result of a lambda fun(child) -> exp. +4673 """ +4674 for k, v in expression.args.items(): +4675 is_list_arg = isinstance(v, list) +4676 +4677 child_nodes = v if is_list_arg else [v] +4678 new_child_nodes = [] +4679 +4680 for cn in child_nodes: +4681 if isinstance(cn, Expression): +4682 for child_node in ensure_collection(fun(cn)): +4683 new_child_nodes.append(child_node) +4684 child_node.parent = expression +4685 child_node.arg_key = k +4686 else: +4687 new_child_nodes.append(cn) +4688 +4689 expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0) +4690 +4691 +4692def column_table_names(expression): +4693 """ +4694 Return all table names referenced through columns in an expression. +4695 +4696 Example: +4697 >>> import sqlglot +4698 >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e")) +4699 ['c', 'a'] 4700 -4701 if not table: -4702 raise ValueError(f"Cannot parse {table}") +4701 Args: +4702 expression (sqlglot.Expression): expression to find table names 4703 -4704 return ".".join( -4705 part -4706 for part in ( -4707 table.text("catalog"), -4708 table.text("db"), -4709 table.name, -4710 ) -4711 if part -4712 ) -4713 -4714 -4715def replace_tables(expression, mapping): -4716 """Replace all tables in expression according to the mapping. -4717 -4718 Args: -4719 expression (sqlglot.Expression): expression node to be transformed and replaced. -4720 mapping (Dict[str, str]): mapping of table names. -4721 -4722 Examples: -4723 >>> from sqlglot import exp, parse_one -4724 >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql() -4725 'SELECT * FROM c' +4704 Returns: +4705 list: A list of unique names +4706 """ +4707 return list(dict.fromkeys(column.table for column in expression.find_all(Column))) +4708 +4709 +4710def table_name(table) -> str: +4711 """Get the full name of a table as a string. +4712 +4713 Args: +4714 table (exp.Table | str): table expression node or string. +4715 +4716 Examples: +4717 >>> from sqlglot import exp, parse_one +4718 >>> table_name(parse_one("select * from a.b.c").find(exp.Table)) +4719 'a.b.c' +4720 +4721 Returns: +4722 The table name. +4723 """ +4724 +4725 table = maybe_parse(table, into=Table) 4726 -4727 Returns: -4728 The mapped expression. -4729 """ -4730 -4731 def _replace_tables(node): -4732 if isinstance(node, Table): -4733 new_name = mapping.get(table_name(node)) -4734 if new_name: -4735 return to_table( -4736 new_name, -4737 **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")}, -4738 ) -4739 return node +4727 if not table: +4728 raise ValueError(f"Cannot parse {table}") +4729 +4730 return ".".join( +4731 part +4732 for part in ( +4733 table.text("catalog"), +4734 table.text("db"), +4735 table.name, +4736 ) +4737 if part +4738 ) +4739 4740 -4741 return expression.transform(_replace_tables) -4742 +4741def replace_tables(expression, mapping): +4742 """Replace all tables in expression according to the mapping. 4743 -4744def replace_placeholders(expression, *args, **kwargs): -4745 """Replace placeholders in an expression. -4746 -4747 Args: -4748 expression (sqlglot.Expression): expression node to be transformed and replaced. -4749 args: positional names that will substitute unnamed placeholders in the given order. -4750 kwargs: keyword arguments that will substitute named placeholders. -4751 -4752 Examples: -4753 >>> from sqlglot import exp, parse_one -4754 >>> replace_placeholders( -4755 ... parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo" -4756 ... ).sql() -4757 'SELECT * FROM foo WHERE a = b' -4758 -4759 Returns: -4760 The mapped expression. -4761 """ -4762 -4763 def _replace_placeholders(node, args, **kwargs): -4764 if isinstance(node, Placeholder): -4765 if node.name: -4766 new_name = kwargs.get(node.name) -4767 if new_name: -4768 return to_identifier(new_name) -4769 else: -4770 try: -4771 return to_identifier(next(args)) -4772 except StopIteration: -4773 pass -4774 return node -4775 -4776 return expression.transform(_replace_placeholders, iter(args), **kwargs) +4744 Args: +4745 expression (sqlglot.Expression): expression node to be transformed and replaced. +4746 mapping (Dict[str, str]): mapping of table names. +4747 +4748 Examples: +4749 >>> from sqlglot import exp, parse_one +4750 >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql() +4751 'SELECT * FROM c' +4752 +4753 Returns: +4754 The mapped expression. +4755 """ +4756 +4757 def _replace_tables(node): +4758 if isinstance(node, Table): +4759 new_name = mapping.get(table_name(node)) +4760 if new_name: +4761 return to_table( +4762 new_name, +4763 **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")}, +4764 ) +4765 return node +4766 +4767 return expression.transform(_replace_tables) +4768 +4769 +4770def replace_placeholders(expression, *args, **kwargs): +4771 """Replace placeholders in an expression. +4772 +4773 Args: +4774 expression (sqlglot.Expression): expression node to be transformed and replaced. +4775 args: positional names that will substitute unnamed placeholders in the given order. +4776 kwargs: keyword arguments that will substitute named placeholders. 4777 -4778 -4779def expand(expression: Expression, sources: t.Dict[str, Subqueryable], copy=True) -> Expression: -4780 """Transforms an expression by expanding all referenced sources into subqueries. -4781 -4782 Examples: -4783 >>> from sqlglot import parse_one -4784 >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql() -4785 'SELECT * FROM (SELECT * FROM y) AS z /* source: x */' -4786 -4787 Args: -4788 expression: The expression to expand. -4789 sources: A dictionary of name to Subqueryables. -4790 copy: Whether or not to copy the expression during transformation. Defaults to True. -4791 -4792 Returns: -4793 The transformed expression. -4794 """ -4795 -4796 def _expand(node: Expression): -4797 if isinstance(node, Table): -4798 name = table_name(node) -4799 source = sources.get(name) -4800 if source: -4801 subquery = source.subquery(node.alias or name) -4802 subquery.comments = [f"source: {name}"] -4803 return subquery -4804 return node -4805 -4806 return expression.transform(_expand, copy=copy) +4778 Examples: +4779 >>> from sqlglot import exp, parse_one +4780 >>> replace_placeholders( +4781 ... parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo" +4782 ... ).sql() +4783 'SELECT * FROM foo WHERE a = b' +4784 +4785 Returns: +4786 The mapped expression. +4787 """ +4788 +4789 def _replace_placeholders(node, args, **kwargs): +4790 if isinstance(node, Placeholder): +4791 if node.name: +4792 new_name = kwargs.get(node.name) +4793 if new_name: +4794 return to_identifier(new_name) +4795 else: +4796 try: +4797 return to_identifier(next(args)) +4798 except StopIteration: +4799 pass +4800 return node +4801 +4802 return expression.transform(_replace_placeholders, iter(args), **kwargs) +4803 +4804 +4805def expand(expression: Expression, sources: t.Dict[str, Subqueryable], copy=True) -> Expression: +4806 """Transforms an expression by expanding all referenced sources into subqueries. 4807 -4808 -4809def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func: -4810 """ -4811 Returns a Func expression. +4808 Examples: +4809 >>> from sqlglot import parse_one +4810 >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql() +4811 'SELECT * FROM (SELECT * FROM y) AS z /* source: x */' 4812 -4813 Examples: -4814 >>> func("abs", 5).sql() -4815 'ABS(5)' -4816 -4817 >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql() -4818 'CAST(5 AS DOUBLE)' -4819 -4820 Args: -4821 name: the name of the function to build. -4822 args: the args used to instantiate the function of interest. -4823 dialect: the source dialect. -4824 kwargs: the kwargs used to instantiate the function of interest. -4825 -4826 Note: -4827 The arguments `args` and `kwargs` are mutually exclusive. -4828 -4829 Returns: -4830 An instance of the function of interest, or an anonymous function, if `name` doesn't -4831 correspond to an existing `sqlglot.expressions.Func` class. -4832 """ -4833 if args and kwargs: -4834 raise ValueError("Can't use both args and kwargs to instantiate a function.") -4835 -4836 from sqlglot.dialects.dialect import Dialect -4837 -4838 args = tuple(convert(arg) for arg in args) -4839 kwargs = {key: convert(value) for key, value in kwargs.items()} -4840 -4841 parser = Dialect.get_or_raise(dialect)().parser() -4842 from_args_list = parser.FUNCTIONS.get(name.upper()) -4843 -4844 if from_args_list: -4845 function = from_args_list(args) if args else from_args_list.__self__(**kwargs) # type: ignore -4846 else: -4847 kwargs = kwargs or {"expressions": args} -4848 function = Anonymous(this=name, **kwargs) -4849 -4850 for error_message in function.error_messages(args): -4851 raise ValueError(error_message) -4852 -4853 return function +4813 Args: +4814 expression: The expression to expand. +4815 sources: A dictionary of name to Subqueryables. +4816 copy: Whether or not to copy the expression during transformation. Defaults to True. +4817 +4818 Returns: +4819 The transformed expression. +4820 """ +4821 +4822 def _expand(node: Expression): +4823 if isinstance(node, Table): +4824 name = table_name(node) +4825 source = sources.get(name) +4826 if source: +4827 subquery = source.subquery(node.alias or name) +4828 subquery.comments = [f"source: {name}"] +4829 return subquery +4830 return node +4831 +4832 return expression.transform(_expand, copy=copy) +4833 +4834 +4835def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func: +4836 """ +4837 Returns a Func expression. +4838 +4839 Examples: +4840 >>> func("abs", 5).sql() +4841 'ABS(5)' +4842 +4843 >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql() +4844 'CAST(5 AS DOUBLE)' +4845 +4846 Args: +4847 name: the name of the function to build. +4848 args: the args used to instantiate the function of interest. +4849 dialect: the source dialect. +4850 kwargs: the kwargs used to instantiate the function of interest. +4851 +4852 Note: +4853 The arguments `args` and `kwargs` are mutually exclusive. 4854 -4855 -4856def true(): -4857 """ -4858 Returns a true Boolean expression. -4859 """ -4860 return Boolean(this=True) +4855 Returns: +4856 An instance of the function of interest, or an anonymous function, if `name` doesn't +4857 correspond to an existing `sqlglot.expressions.Func` class. +4858 """ +4859 if args and kwargs: +4860 raise ValueError("Can't use both args and kwargs to instantiate a function.") 4861 -4862 -4863def false(): -4864 """ -4865 Returns a false Boolean expression. -4866 """ -4867 return Boolean(this=False) -4868 +4862 from sqlglot.dialects.dialect import Dialect +4863 +4864 args = tuple(convert(arg) for arg in args) +4865 kwargs = {key: convert(value) for key, value in kwargs.items()} +4866 +4867 parser = Dialect.get_or_raise(dialect)().parser() +4868 from_args_list = parser.FUNCTIONS.get(name.upper()) 4869 -4870def null(): -4871 """ -4872 Returns a Null expression. -4873 """ -4874 return Null() +4870 if from_args_list: +4871 function = from_args_list(args) if args else from_args_list.__self__(**kwargs) # type: ignore +4872 else: +4873 kwargs = kwargs or {"expressions": args} +4874 function = Anonymous(this=name, **kwargs) 4875 -4876 -4877# TODO: deprecate this -4878TRUE = Boolean(this=True) -4879FALSE = Boolean(this=False) -4880NULL = Null() +4876 for error_message in function.error_messages(args): +4877 raise ValueError(error_message) +4878 +4879 return function +4880 +4881 +4882def true(): +4883 """ +4884 Returns a true Boolean expression. +4885 """ +4886 return Boolean(this=True) +4887 +4888 +4889def false(): +4890 """ +4891 Returns a false Boolean expression. +4892 """ +4893 return Boolean(this=False) +4894 +4895 +4896def null(): +4897 """ +4898 Returns a Null expression. +4899 """ +4900 return Null() +4901 +4902 +4903# TODO: deprecate this +4904TRUE = Boolean(this=True) +4905FALSE = Boolean(this=False) +4906NULL = Null()
  • @@ -13132,7 +13173,7 @@ If an Expression instance is passed, it w
    1034class Delete(Expression):
    -1035    arg_types = {"with": False, "this": False, "using": False, "where": False}
    +1035    arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False}
     
    @@ -14130,11 +14171,12 @@ If an Expression instance is passed, it w 1133 "with": False, 1134 "this": True, 1135 "expression": False, -1136 "overwrite": False, -1137 "exists": False, -1138 "partition": False, -1139 "alternative": False, -1140 } +1136 "returning": False, +1137 "overwrite": False, +1138 "exists": False, +1139 "partition": False, +1140 "alternative": False, +1141 } @@ -14180,6 +14222,68 @@ If an Expression instance is passed, it w
    dump
    load
    + + + + +
    + +
    + + class + Returning(Expression): + + + +
    + +
    1144class Returning(Expression):
    +1145    arg_types = {"expressions": True}
    +
    + + + + + @@ -14195,8 +14299,8 @@ If an Expression instance is passed, it w -
    1144class Introducer(Expression):
    -1145    arg_types = {"this": True, "expression": True}
    +            
    1149class Introducer(Expression):
    +1150    arg_types = {"this": True, "expression": True}
     
    @@ -14257,8 +14361,8 @@ If an Expression instance is passed, it w
    -
    1149class National(Expression):
    -1150    pass
    +            
    1154class National(Expression):
    +1155    pass
     
    @@ -14319,16 +14423,16 @@ If an Expression instance is passed, it w
    -
    1153class LoadData(Expression):
    -1154    arg_types = {
    -1155        "this": True,
    -1156        "local": False,
    -1157        "overwrite": False,
    -1158        "inpath": True,
    -1159        "partition": False,
    -1160        "input_format": False,
    -1161        "serde": False,
    -1162    }
    +            
    1158class LoadData(Expression):
    +1159    arg_types = {
    +1160        "this": True,
    +1161        "local": False,
    +1162        "overwrite": False,
    +1163        "inpath": True,
    +1164        "partition": False,
    +1165        "input_format": False,
    +1166        "serde": False,
    +1167    }
     
    @@ -14389,8 +14493,8 @@ If an Expression instance is passed, it w
    -
    1165class Partition(Expression):
    -1166    arg_types = {"expressions": True}
    +            
    1170class Partition(Expression):
    +1171    arg_types = {"expressions": True}
     
    @@ -14451,8 +14555,8 @@ If an Expression instance is passed, it w
    -
    1169class Fetch(Expression):
    -1170    arg_types = {"direction": False, "count": False}
    +            
    1174class Fetch(Expression):
    +1175    arg_types = {"direction": False, "count": False}
     
    @@ -14513,13 +14617,13 @@ If an Expression instance is passed, it w
    -
    1173class Group(Expression):
    -1174    arg_types = {
    -1175        "expressions": False,
    -1176        "grouping_sets": False,
    -1177        "cube": False,
    -1178        "rollup": False,
    -1179    }
    +            
    1178class Group(Expression):
    +1179    arg_types = {
    +1180        "expressions": False,
    +1181        "grouping_sets": False,
    +1182        "cube": False,
    +1183        "rollup": False,
    +1184    }
     
    @@ -14580,8 +14684,8 @@ If an Expression instance is passed, it w
    -
    1182class Lambda(Expression):
    -1183    arg_types = {"this": True, "expressions": True}
    +            
    1187class Lambda(Expression):
    +1188    arg_types = {"this": True, "expressions": True}
     
    @@ -14642,8 +14746,8 @@ If an Expression instance is passed, it w
    -
    1186class Limit(Expression):
    -1187    arg_types = {"this": False, "expression": True}
    +            
    1191class Limit(Expression):
    +1192    arg_types = {"this": False, "expression": True}
     
    @@ -14704,30 +14808,30 @@ If an Expression instance is passed, it w
    -
    1190class Literal(Condition):
    -1191    arg_types = {"this": True, "is_string": True}
    -1192
    -1193    def __eq__(self, other):
    -1194        return (
    -1195            isinstance(other, Literal)
    -1196            and self.this == other.this
    -1197            and self.args["is_string"] == other.args["is_string"]
    -1198        )
    -1199
    -1200    def __hash__(self):
    -1201        return hash((self.key, self.this, self.args["is_string"]))
    -1202
    -1203    @classmethod
    -1204    def number(cls, number) -> Literal:
    -1205        return cls(this=str(number), is_string=False)
    -1206
    -1207    @classmethod
    -1208    def string(cls, string) -> Literal:
    -1209        return cls(this=str(string), is_string=True)
    -1210
    -1211    @property
    -1212    def output_name(self):
    -1213        return self.name
    +            
    1195class Literal(Condition):
    +1196    arg_types = {"this": True, "is_string": True}
    +1197
    +1198    def __eq__(self, other):
    +1199        return (
    +1200            isinstance(other, Literal)
    +1201            and self.this == other.this
    +1202            and self.args["is_string"] == other.args["is_string"]
    +1203        )
    +1204
    +1205    def __hash__(self):
    +1206        return hash((self.key, self.this, self.args["is_string"]))
    +1207
    +1208    @classmethod
    +1209    def number(cls, number) -> Literal:
    +1210        return cls(this=str(number), is_string=False)
    +1211
    +1212    @classmethod
    +1213    def string(cls, string) -> Literal:
    +1214        return cls(this=str(string), is_string=True)
    +1215
    +1216    @property
    +1217    def output_name(self):
    +1218        return self.name
     
    @@ -14745,9 +14849,9 @@ If an Expression instance is passed, it w
    -
    1203    @classmethod
    -1204    def number(cls, number) -> Literal:
    -1205        return cls(this=str(number), is_string=False)
    +            
    1208    @classmethod
    +1209    def number(cls, number) -> Literal:
    +1210        return cls(this=str(number), is_string=False)
     
    @@ -14766,9 +14870,9 @@ If an Expression instance is passed, it w
    -
    1207    @classmethod
    -1208    def string(cls, string) -> Literal:
    -1209        return cls(this=str(string), is_string=True)
    +            
    1212    @classmethod
    +1213    def string(cls, string) -> Literal:
    +1214        return cls(this=str(string), is_string=True)
     
    @@ -14865,100 +14969,100 @@ If an Expression instance is passed, it w
    -
    1216class Join(Expression):
    -1217    arg_types = {
    -1218        "this": True,
    -1219        "on": False,
    -1220        "side": False,
    -1221        "kind": False,
    -1222        "using": False,
    -1223        "natural": False,
    -1224    }
    -1225
    -1226    @property
    -1227    def kind(self):
    -1228        return self.text("kind").upper()
    -1229
    -1230    @property
    -1231    def side(self):
    -1232        return self.text("side").upper()
    -1233
    -1234    @property
    -1235    def alias_or_name(self):
    -1236        return self.this.alias_or_name
    -1237
    -1238    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1239        """
    -1240        Append to or set the ON expressions.
    -1241
    -1242        Example:
    -1243            >>> import sqlglot
    -1244            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    -1245            'JOIN x ON y = 1'
    +            
    1221class Join(Expression):
    +1222    arg_types = {
    +1223        "this": True,
    +1224        "on": False,
    +1225        "side": False,
    +1226        "kind": False,
    +1227        "using": False,
    +1228        "natural": False,
    +1229    }
    +1230
    +1231    @property
    +1232    def kind(self):
    +1233        return self.text("kind").upper()
    +1234
    +1235    @property
    +1236    def side(self):
    +1237        return self.text("side").upper()
    +1238
    +1239    @property
    +1240    def alias_or_name(self):
    +1241        return self.this.alias_or_name
    +1242
    +1243    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1244        """
    +1245        Append to or set the ON expressions.
     1246
    -1247        Args:
    -1248            *expressions (str | Expression): the SQL code strings to parse.
    -1249                If an `Expression` instance is passed, it will be used as-is.
    -1250                Multiple expressions are combined with an AND operator.
    -1251            append (bool): if `True`, AND the new expressions to any existing expression.
    -1252                Otherwise, this resets the expression.
    -1253            dialect (str): the dialect used to parse the input expressions.
    -1254            copy (bool): if `False`, modify this expression instance in-place.
    -1255            opts (kwargs): other options to use to parse the input expressions.
    -1256
    -1257        Returns:
    -1258            Join: the modified join expression.
    -1259        """
    -1260        join = _apply_conjunction_builder(
    -1261            *expressions,
    -1262            instance=self,
    -1263            arg="on",
    -1264            append=append,
    -1265            dialect=dialect,
    -1266            copy=copy,
    -1267            **opts,
    -1268        )
    -1269
    -1270        if join.kind == "CROSS":
    -1271            join.set("kind", None)
    -1272
    -1273        return join
    +1247        Example:
    +1248            >>> import sqlglot
    +1249            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    +1250            'JOIN x ON y = 1'
    +1251
    +1252        Args:
    +1253            *expressions (str | Expression): the SQL code strings to parse.
    +1254                If an `Expression` instance is passed, it will be used as-is.
    +1255                Multiple expressions are combined with an AND operator.
    +1256            append (bool): if `True`, AND the new expressions to any existing expression.
    +1257                Otherwise, this resets the expression.
    +1258            dialect (str): the dialect used to parse the input expressions.
    +1259            copy (bool): if `False`, modify this expression instance in-place.
    +1260            opts (kwargs): other options to use to parse the input expressions.
    +1261
    +1262        Returns:
    +1263            Join: the modified join expression.
    +1264        """
    +1265        join = _apply_conjunction_builder(
    +1266            *expressions,
    +1267            instance=self,
    +1268            arg="on",
    +1269            append=append,
    +1270            dialect=dialect,
    +1271            copy=copy,
    +1272            **opts,
    +1273        )
     1274
    -1275    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1276        """
    -1277        Append to or set the USING expressions.
    -1278
    -1279        Example:
    -1280            >>> import sqlglot
    -1281            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    -1282            'JOIN x USING (foo, bla)'
    +1275        if join.kind == "CROSS":
    +1276            join.set("kind", None)
    +1277
    +1278        return join
    +1279
    +1280    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1281        """
    +1282        Append to or set the USING expressions.
     1283
    -1284        Args:
    -1285            *expressions (str | Expression): the SQL code strings to parse.
    -1286                If an `Expression` instance is passed, it will be used as-is.
    -1287            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    -1288                Otherwise, this resets the expression.
    -1289            dialect (str): the dialect used to parse the input expressions.
    -1290            copy (bool): if `False`, modify this expression instance in-place.
    -1291            opts (kwargs): other options to use to parse the input expressions.
    -1292
    -1293        Returns:
    -1294            Join: the modified join expression.
    -1295        """
    -1296        join = _apply_list_builder(
    -1297            *expressions,
    -1298            instance=self,
    -1299            arg="using",
    -1300            append=append,
    -1301            dialect=dialect,
    -1302            copy=copy,
    -1303            **opts,
    -1304        )
    -1305
    -1306        if join.kind == "CROSS":
    -1307            join.set("kind", None)
    -1308
    -1309        return join
    +1284        Example:
    +1285            >>> import sqlglot
    +1286            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    +1287            'JOIN x USING (foo, bla)'
    +1288
    +1289        Args:
    +1290            *expressions (str | Expression): the SQL code strings to parse.
    +1291                If an `Expression` instance is passed, it will be used as-is.
    +1292            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    +1293                Otherwise, this resets the expression.
    +1294            dialect (str): the dialect used to parse the input expressions.
    +1295            copy (bool): if `False`, modify this expression instance in-place.
    +1296            opts (kwargs): other options to use to parse the input expressions.
    +1297
    +1298        Returns:
    +1299            Join: the modified join expression.
    +1300        """
    +1301        join = _apply_list_builder(
    +1302            *expressions,
    +1303            instance=self,
    +1304            arg="using",
    +1305            append=append,
    +1306            dialect=dialect,
    +1307            copy=copy,
    +1308            **opts,
    +1309        )
    +1310
    +1311        if join.kind == "CROSS":
    +1312            join.set("kind", None)
    +1313
    +1314        return join
     
    @@ -14975,42 +15079,42 @@ If an Expression instance is passed, it w
    -
    1238    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1239        """
    -1240        Append to or set the ON expressions.
    -1241
    -1242        Example:
    -1243            >>> import sqlglot
    -1244            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    -1245            'JOIN x ON y = 1'
    +            
    1243    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1244        """
    +1245        Append to or set the ON expressions.
     1246
    -1247        Args:
    -1248            *expressions (str | Expression): the SQL code strings to parse.
    -1249                If an `Expression` instance is passed, it will be used as-is.
    -1250                Multiple expressions are combined with an AND operator.
    -1251            append (bool): if `True`, AND the new expressions to any existing expression.
    -1252                Otherwise, this resets the expression.
    -1253            dialect (str): the dialect used to parse the input expressions.
    -1254            copy (bool): if `False`, modify this expression instance in-place.
    -1255            opts (kwargs): other options to use to parse the input expressions.
    -1256
    -1257        Returns:
    -1258            Join: the modified join expression.
    -1259        """
    -1260        join = _apply_conjunction_builder(
    -1261            *expressions,
    -1262            instance=self,
    -1263            arg="on",
    -1264            append=append,
    -1265            dialect=dialect,
    -1266            copy=copy,
    -1267            **opts,
    -1268        )
    -1269
    -1270        if join.kind == "CROSS":
    -1271            join.set("kind", None)
    -1272
    -1273        return join
    +1247        Example:
    +1248            >>> import sqlglot
    +1249            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    +1250            'JOIN x ON y = 1'
    +1251
    +1252        Args:
    +1253            *expressions (str | Expression): the SQL code strings to parse.
    +1254                If an `Expression` instance is passed, it will be used as-is.
    +1255                Multiple expressions are combined with an AND operator.
    +1256            append (bool): if `True`, AND the new expressions to any existing expression.
    +1257                Otherwise, this resets the expression.
    +1258            dialect (str): the dialect used to parse the input expressions.
    +1259            copy (bool): if `False`, modify this expression instance in-place.
    +1260            opts (kwargs): other options to use to parse the input expressions.
    +1261
    +1262        Returns:
    +1263            Join: the modified join expression.
    +1264        """
    +1265        join = _apply_conjunction_builder(
    +1266            *expressions,
    +1267            instance=self,
    +1268            arg="on",
    +1269            append=append,
    +1270            dialect=dialect,
    +1271            copy=copy,
    +1272            **opts,
    +1273        )
    +1274
    +1275        if join.kind == "CROSS":
    +1276            join.set("kind", None)
    +1277
    +1278        return join
     
    @@ -15060,41 +15164,41 @@ Otherwise, this resets the expression.
    -
    1275    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1276        """
    -1277        Append to or set the USING expressions.
    -1278
    -1279        Example:
    -1280            >>> import sqlglot
    -1281            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    -1282            'JOIN x USING (foo, bla)'
    +            
    1280    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1281        """
    +1282        Append to or set the USING expressions.
     1283
    -1284        Args:
    -1285            *expressions (str | Expression): the SQL code strings to parse.
    -1286                If an `Expression` instance is passed, it will be used as-is.
    -1287            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    -1288                Otherwise, this resets the expression.
    -1289            dialect (str): the dialect used to parse the input expressions.
    -1290            copy (bool): if `False`, modify this expression instance in-place.
    -1291            opts (kwargs): other options to use to parse the input expressions.
    -1292
    -1293        Returns:
    -1294            Join: the modified join expression.
    -1295        """
    -1296        join = _apply_list_builder(
    -1297            *expressions,
    -1298            instance=self,
    -1299            arg="using",
    -1300            append=append,
    -1301            dialect=dialect,
    -1302            copy=copy,
    -1303            **opts,
    -1304        )
    -1305
    -1306        if join.kind == "CROSS":
    -1307            join.set("kind", None)
    -1308
    -1309        return join
    +1284        Example:
    +1285            >>> import sqlglot
    +1286            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    +1287            'JOIN x USING (foo, bla)'
    +1288
    +1289        Args:
    +1290            *expressions (str | Expression): the SQL code strings to parse.
    +1291                If an `Expression` instance is passed, it will be used as-is.
    +1292            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    +1293                Otherwise, this resets the expression.
    +1294            dialect (str): the dialect used to parse the input expressions.
    +1295            copy (bool): if `False`, modify this expression instance in-place.
    +1296            opts (kwargs): other options to use to parse the input expressions.
    +1297
    +1298        Returns:
    +1299            Join: the modified join expression.
    +1300        """
    +1301        join = _apply_list_builder(
    +1302            *expressions,
    +1303            instance=self,
    +1304            arg="using",
    +1305            append=append,
    +1306            dialect=dialect,
    +1307            copy=copy,
    +1308            **opts,
    +1309        )
    +1310
    +1311        if join.kind == "CROSS":
    +1312            join.set("kind", None)
    +1313
    +1314        return join
     
    @@ -15187,8 +15291,8 @@ Otherwise, this resets the expression.
    -
    1312class Lateral(UDTF):
    -1313    arg_types = {"this": True, "view": False, "outer": False, "alias": False}
    +            
    1317class Lateral(UDTF):
    +1318    arg_types = {"this": True, "view": False, "outer": False, "alias": False}
     
    @@ -15255,16 +15359,16 @@ Otherwise, this resets the expression.
    -
    1316class MatchRecognize(Expression):
    -1317    arg_types = {
    -1318        "partition_by": False,
    -1319        "order": False,
    -1320        "measures": False,
    -1321        "rows": False,
    -1322        "after": False,
    -1323        "pattern": False,
    -1324        "define": False,
    -1325    }
    +            
    1321class MatchRecognize(Expression):
    +1322    arg_types = {
    +1323        "partition_by": False,
    +1324        "order": False,
    +1325        "measures": False,
    +1326        "rows": False,
    +1327        "after": False,
    +1328        "pattern": False,
    +1329        "define": False,
    +1330    }
     
    @@ -15325,8 +15429,8 @@ Otherwise, this resets the expression.
    -
    1330class Final(Expression):
    -1331    pass
    +            
    1335class Final(Expression):
    +1336    pass
     
    @@ -15387,8 +15491,8 @@ Otherwise, this resets the expression.
    -
    1334class Offset(Expression):
    -1335    arg_types = {"this": False, "expression": True}
    +            
    1339class Offset(Expression):
    +1340    arg_types = {"this": False, "expression": True}
     
    @@ -15449,8 +15553,8 @@ Otherwise, this resets the expression.
    -
    1338class Order(Expression):
    -1339    arg_types = {"this": False, "expressions": True}
    +            
    1343class Order(Expression):
    +1344    arg_types = {"this": False, "expressions": True}
     
    @@ -15511,8 +15615,8 @@ Otherwise, this resets the expression.
    -
    1344class Cluster(Order):
    -1345    pass
    +            
    1349class Cluster(Order):
    +1350    pass
     
    @@ -15573,8 +15677,8 @@ Otherwise, this resets the expression.
    -
    1348class Distribute(Order):
    -1349    pass
    +            
    1353class Distribute(Order):
    +1354    pass
     
    @@ -15635,8 +15739,8 @@ Otherwise, this resets the expression.
    -
    1352class Sort(Order):
    -1353    pass
    +            
    1357class Sort(Order):
    +1358    pass
     
    @@ -15697,8 +15801,8 @@ Otherwise, this resets the expression.
    -
    1356class Ordered(Expression):
    -1357    arg_types = {"this": True, "desc": True, "nulls_first": True}
    +            
    1361class Ordered(Expression):
    +1362    arg_types = {"this": True, "desc": True, "nulls_first": True}
     
    @@ -15759,8 +15863,8 @@ Otherwise, this resets the expression.
    -
    1360class Property(Expression):
    -1361    arg_types = {"this": True, "value": True}
    +            
    1365class Property(Expression):
    +1366    arg_types = {"this": True, "value": True}
     
    @@ -15821,8 +15925,8 @@ Otherwise, this resets the expression.
    -
    1364class AfterJournalProperty(Property):
    -1365    arg_types = {"no": True, "dual": False, "local": False}
    +            
    1369class AfterJournalProperty(Property):
    +1370    arg_types = {"no": True, "dual": False, "local": False}
     
    @@ -15883,8 +15987,8 @@ Otherwise, this resets the expression.
    -
    1368class AlgorithmProperty(Property):
    -1369    arg_types = {"this": True}
    +            
    1373class AlgorithmProperty(Property):
    +1374    arg_types = {"this": True}
     
    @@ -15945,8 +16049,8 @@ Otherwise, this resets the expression.
    -
    1372class AutoIncrementProperty(Property):
    -1373    arg_types = {"this": True}
    +            
    1377class AutoIncrementProperty(Property):
    +1378    arg_types = {"this": True}
     
    @@ -16007,8 +16111,8 @@ Otherwise, this resets the expression.
    -
    1376class BlockCompressionProperty(Property):
    -1377    arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True}
    +            
    1381class BlockCompressionProperty(Property):
    +1382    arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True}
     
    @@ -16069,8 +16173,8 @@ Otherwise, this resets the expression.
    -
    1380class CharacterSetProperty(Property):
    -1381    arg_types = {"this": True, "default": True}
    +            
    1385class CharacterSetProperty(Property):
    +1386    arg_types = {"this": True, "default": True}
     
    @@ -16131,8 +16235,8 @@ Otherwise, this resets the expression.
    -
    1384class ChecksumProperty(Property):
    -1385    arg_types = {"on": False, "default": False}
    +            
    1389class ChecksumProperty(Property):
    +1390    arg_types = {"on": False, "default": False}
     
    @@ -16193,8 +16297,8 @@ Otherwise, this resets the expression.
    -
    1388class CollateProperty(Property):
    -1389    arg_types = {"this": True}
    +            
    1393class CollateProperty(Property):
    +1394    arg_types = {"this": True}
     
    @@ -16255,8 +16359,8 @@ Otherwise, this resets the expression.
    -
    1392class DataBlocksizeProperty(Property):
    -1393    arg_types = {"size": False, "units": False, "min": False, "default": False}
    +            
    1397class DataBlocksizeProperty(Property):
    +1398    arg_types = {"size": False, "units": False, "min": False, "default": False}
     
    @@ -16317,8 +16421,8 @@ Otherwise, this resets the expression.
    -
    1396class DefinerProperty(Property):
    -1397    arg_types = {"this": True}
    +            
    1401class DefinerProperty(Property):
    +1402    arg_types = {"this": True}
     
    @@ -16379,8 +16483,8 @@ Otherwise, this resets the expression.
    -
    1400class DistKeyProperty(Property):
    -1401    arg_types = {"this": True}
    +            
    1405class DistKeyProperty(Property):
    +1406    arg_types = {"this": True}
     
    @@ -16441,8 +16545,8 @@ Otherwise, this resets the expression.
    -
    1404class DistStyleProperty(Property):
    -1405    arg_types = {"this": True}
    +            
    1409class DistStyleProperty(Property):
    +1410    arg_types = {"this": True}
     
    @@ -16503,8 +16607,8 @@ Otherwise, this resets the expression.
    -
    1408class EngineProperty(Property):
    -1409    arg_types = {"this": True}
    +            
    1413class EngineProperty(Property):
    +1414    arg_types = {"this": True}
     
    @@ -16565,8 +16669,8 @@ Otherwise, this resets the expression.
    -
    1412class ExecuteAsProperty(Property):
    -1413    arg_types = {"this": True}
    +            
    1417class ExecuteAsProperty(Property):
    +1418    arg_types = {"this": True}
     
    @@ -16627,8 +16731,8 @@ Otherwise, this resets the expression.
    -
    1416class ExternalProperty(Property):
    -1417    arg_types = {"this": False}
    +            
    1421class ExternalProperty(Property):
    +1422    arg_types = {"this": False}
     
    @@ -16689,8 +16793,8 @@ Otherwise, this resets the expression.
    -
    1420class FallbackProperty(Property):
    -1421    arg_types = {"no": True, "protection": False}
    +            
    1425class FallbackProperty(Property):
    +1426    arg_types = {"no": True, "protection": False}
     
    @@ -16751,8 +16855,8 @@ Otherwise, this resets the expression.
    -
    1424class FileFormatProperty(Property):
    -1425    arg_types = {"this": True}
    +            
    1429class FileFormatProperty(Property):
    +1430    arg_types = {"this": True}
     
    @@ -16813,8 +16917,8 @@ Otherwise, this resets the expression.
    -
    1428class FreespaceProperty(Property):
    -1429    arg_types = {"this": True, "percent": False}
    +            
    1433class FreespaceProperty(Property):
    +1434    arg_types = {"this": True, "percent": False}
     
    @@ -16875,14 +16979,14 @@ Otherwise, this resets the expression.
    -
    1432class IsolatedLoadingProperty(Property):
    -1433    arg_types = {
    -1434        "no": True,
    -1435        "concurrent": True,
    -1436        "for_all": True,
    -1437        "for_insert": True,
    -1438        "for_none": True,
    -1439    }
    +            
    1437class IsolatedLoadingProperty(Property):
    +1438    arg_types = {
    +1439        "no": True,
    +1440        "concurrent": True,
    +1441        "for_all": True,
    +1442        "for_insert": True,
    +1443        "for_none": True,
    +1444    }
     
    @@ -16943,8 +17047,8 @@ Otherwise, this resets the expression.
    -
    1442class JournalProperty(Property):
    -1443    arg_types = {"no": True, "dual": False, "before": False}
    +            
    1447class JournalProperty(Property):
    +1448    arg_types = {"no": True, "dual": False, "before": False}
     
    @@ -17005,8 +17109,8 @@ Otherwise, this resets the expression.
    -
    1446class LanguageProperty(Property):
    -1447    arg_types = {"this": True}
    +            
    1451class LanguageProperty(Property):
    +1452    arg_types = {"this": True}
     
    @@ -17067,8 +17171,8 @@ Otherwise, this resets the expression.
    -
    1450class LikeProperty(Property):
    -1451    arg_types = {"this": True, "expressions": False}
    +            
    1455class LikeProperty(Property):
    +1456    arg_types = {"this": True, "expressions": False}
     
    @@ -17129,8 +17233,8 @@ Otherwise, this resets the expression.
    -
    1454class LocationProperty(Property):
    -1455    arg_types = {"this": True}
    +            
    1459class LocationProperty(Property):
    +1460    arg_types = {"this": True}
     
    @@ -17191,14 +17295,14 @@ Otherwise, this resets the expression.
    -
    1458class LockingProperty(Property):
    -1459    arg_types = {
    -1460        "this": False,
    -1461        "kind": True,
    -1462        "for_or_in": True,
    -1463        "lock_type": True,
    -1464        "override": False,
    -1465    }
    +            
    1463class LockingProperty(Property):
    +1464    arg_types = {
    +1465        "this": False,
    +1466        "kind": True,
    +1467        "for_or_in": True,
    +1468        "lock_type": True,
    +1469        "override": False,
    +1470    }
     
    @@ -17259,8 +17363,8 @@ Otherwise, this resets the expression.
    -
    1468class LogProperty(Property):
    -1469    arg_types = {"no": True}
    +            
    1473class LogProperty(Property):
    +1474    arg_types = {"no": True}
     
    @@ -17321,8 +17425,8 @@ Otherwise, this resets the expression.
    -
    1472class MaterializedProperty(Property):
    -1473    arg_types = {"this": False}
    +            
    1477class MaterializedProperty(Property):
    +1478    arg_types = {"this": False}
     
    @@ -17383,8 +17487,8 @@ Otherwise, this resets the expression.
    -
    1476class MergeBlockRatioProperty(Property):
    -1477    arg_types = {"this": False, "no": False, "default": False, "percent": False}
    +            
    1481class MergeBlockRatioProperty(Property):
    +1482    arg_types = {"this": False, "no": False, "default": False, "percent": False}
     
    @@ -17445,8 +17549,8 @@ Otherwise, this resets the expression.
    -
    1480class NoPrimaryIndexProperty(Property):
    -1481    arg_types = {"this": False}
    +            
    1485class NoPrimaryIndexProperty(Property):
    +1486    arg_types = {"this": False}
     
    @@ -17507,8 +17611,8 @@ Otherwise, this resets the expression.
    -
    1484class OnCommitProperty(Property):
    -1485    arg_type = {"this": False}
    +            
    1489class OnCommitProperty(Property):
    +1490    arg_type = {"this": False}
     
    @@ -17569,8 +17673,8 @@ Otherwise, this resets the expression.
    -
    1488class PartitionedByProperty(Property):
    -1489    arg_types = {"this": True}
    +            
    1493class PartitionedByProperty(Property):
    +1494    arg_types = {"this": True}
     
    @@ -17631,8 +17735,8 @@ Otherwise, this resets the expression.
    -
    1492class ReturnsProperty(Property):
    -1493    arg_types = {"this": True, "is_table": False, "table": False}
    +            
    1497class ReturnsProperty(Property):
    +1498    arg_types = {"this": True, "is_table": False, "table": False}
     
    @@ -17693,17 +17797,17 @@ Otherwise, this resets the expression.
    -
    1496class RowFormatDelimitedProperty(Property):
    -1497    # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml
    -1498    arg_types = {
    -1499        "fields": False,
    -1500        "escaped": False,
    -1501        "collection_items": False,
    -1502        "map_keys": False,
    -1503        "lines": False,
    -1504        "null": False,
    -1505        "serde": False,
    -1506    }
    +            
    1501class RowFormatDelimitedProperty(Property):
    +1502    # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml
    +1503    arg_types = {
    +1504        "fields": False,
    +1505        "escaped": False,
    +1506        "collection_items": False,
    +1507        "map_keys": False,
    +1508        "lines": False,
    +1509        "null": False,
    +1510        "serde": False,
    +1511    }
     
    @@ -17764,8 +17868,8 @@ Otherwise, this resets the expression.
    -
    1509class RowFormatSerdeProperty(Property):
    -1510    arg_types = {"this": True}
    +            
    1514class RowFormatSerdeProperty(Property):
    +1515    arg_types = {"this": True}
     
    @@ -17826,8 +17930,8 @@ Otherwise, this resets the expression.
    -
    1513class SchemaCommentProperty(Property):
    -1514    arg_types = {"this": True}
    +            
    1518class SchemaCommentProperty(Property):
    +1519    arg_types = {"this": True}
     
    @@ -17888,8 +17992,8 @@ Otherwise, this resets the expression.
    -
    1517class SerdeProperties(Property):
    -1518    arg_types = {"expressions": True}
    +            
    1522class SerdeProperties(Property):
    +1523    arg_types = {"expressions": True}
     
    @@ -17950,8 +18054,8 @@ Otherwise, this resets the expression.
    -
    1521class SetProperty(Property):
    -1522    arg_types = {"multi": True}
    +            
    1526class SetProperty(Property):
    +1527    arg_types = {"multi": True}
     
    @@ -18012,8 +18116,8 @@ Otherwise, this resets the expression.
    -
    1525class SortKeyProperty(Property):
    -1526    arg_types = {"this": True, "compound": False}
    +            
    1530class SortKeyProperty(Property):
    +1531    arg_types = {"this": True, "compound": False}
     
    @@ -18074,8 +18178,8 @@ Otherwise, this resets the expression.
    -
    1529class SqlSecurityProperty(Property):
    -1530    arg_types = {"definer": True}
    +            
    1534class SqlSecurityProperty(Property):
    +1535    arg_types = {"definer": True}
     
    @@ -18136,8 +18240,8 @@ Otherwise, this resets the expression.
    -
    1533class TableFormatProperty(Property):
    -1534    arg_types = {"this": True}
    +            
    1538class TableFormatProperty(Property):
    +1539    arg_types = {"this": True}
     
    @@ -18198,8 +18302,8 @@ Otherwise, this resets the expression.
    -
    1537class TemporaryProperty(Property):
    -1538    arg_types = {"global_": True}
    +            
    1542class TemporaryProperty(Property):
    +1543    arg_types = {"global_": True}
     
    @@ -18260,8 +18364,8 @@ Otherwise, this resets the expression.
    -
    1541class TransientProperty(Property):
    -1542    arg_types = {"this": False}
    +            
    1546class TransientProperty(Property):
    +1547    arg_types = {"this": False}
     
    @@ -18322,8 +18426,8 @@ Otherwise, this resets the expression.
    -
    1545class VolatilityProperty(Property):
    -1546    arg_types = {"this": True}
    +            
    1550class VolatilityProperty(Property):
    +1551    arg_types = {"this": True}
     
    @@ -18384,8 +18488,8 @@ Otherwise, this resets the expression.
    -
    1549class WithDataProperty(Property):
    -1550    arg_types = {"no": True, "statistics": False}
    +            
    1554class WithDataProperty(Property):
    +1555    arg_types = {"no": True, "statistics": False}
     
    @@ -18446,8 +18550,8 @@ Otherwise, this resets the expression.
    -
    1553class WithJournalTableProperty(Property):
    -1554    arg_types = {"this": True}
    +            
    1558class WithJournalTableProperty(Property):
    +1559    arg_types = {"this": True}
     
    @@ -18508,65 +18612,65 @@ Otherwise, this resets the expression.
    -
    1557class Properties(Expression):
    -1558    arg_types = {"expressions": True}
    -1559
    -1560    NAME_TO_PROPERTY = {
    -1561        "ALGORITHM": AlgorithmProperty,
    -1562        "AUTO_INCREMENT": AutoIncrementProperty,
    -1563        "CHARACTER SET": CharacterSetProperty,
    -1564        "COLLATE": CollateProperty,
    -1565        "COMMENT": SchemaCommentProperty,
    -1566        "DEFINER": DefinerProperty,
    -1567        "DISTKEY": DistKeyProperty,
    -1568        "DISTSTYLE": DistStyleProperty,
    -1569        "ENGINE": EngineProperty,
    -1570        "EXECUTE AS": ExecuteAsProperty,
    -1571        "FORMAT": FileFormatProperty,
    -1572        "LANGUAGE": LanguageProperty,
    -1573        "LOCATION": LocationProperty,
    -1574        "PARTITIONED_BY": PartitionedByProperty,
    -1575        "RETURNS": ReturnsProperty,
    -1576        "SORTKEY": SortKeyProperty,
    -1577        "TABLE_FORMAT": TableFormatProperty,
    -1578    }
    -1579
    -1580    PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()}
    -1581
    -1582    # CREATE property locations
    -1583    # Form: schema specified
    -1584    #   create [POST_CREATE]
    -1585    #     table a [POST_NAME]
    -1586    #     (b int) [POST_SCHEMA]
    -1587    #     with ([POST_WITH])
    -1588    #     index (b) [POST_INDEX]
    -1589    #
    -1590    # Form: alias selection
    -1591    #   create [POST_CREATE]
    -1592    #     table a [POST_NAME]
    -1593    #     as [POST_ALIAS] (select * from b) [POST_EXPRESSION]
    -1594    #     index (c) [POST_INDEX]
    -1595    class Location(AutoName):
    -1596        POST_CREATE = auto()
    -1597        POST_NAME = auto()
    -1598        POST_SCHEMA = auto()
    -1599        POST_WITH = auto()
    -1600        POST_ALIAS = auto()
    -1601        POST_EXPRESSION = auto()
    -1602        POST_INDEX = auto()
    -1603        UNSUPPORTED = auto()
    -1604
    -1605    @classmethod
    -1606    def from_dict(cls, properties_dict) -> Properties:
    -1607        expressions = []
    -1608        for key, value in properties_dict.items():
    -1609            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    -1610            if property_cls:
    -1611                expressions.append(property_cls(this=convert(value)))
    -1612            else:
    -1613                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    -1614
    -1615        return cls(expressions=expressions)
    +            
    1562class Properties(Expression):
    +1563    arg_types = {"expressions": True}
    +1564
    +1565    NAME_TO_PROPERTY = {
    +1566        "ALGORITHM": AlgorithmProperty,
    +1567        "AUTO_INCREMENT": AutoIncrementProperty,
    +1568        "CHARACTER SET": CharacterSetProperty,
    +1569        "COLLATE": CollateProperty,
    +1570        "COMMENT": SchemaCommentProperty,
    +1571        "DEFINER": DefinerProperty,
    +1572        "DISTKEY": DistKeyProperty,
    +1573        "DISTSTYLE": DistStyleProperty,
    +1574        "ENGINE": EngineProperty,
    +1575        "EXECUTE AS": ExecuteAsProperty,
    +1576        "FORMAT": FileFormatProperty,
    +1577        "LANGUAGE": LanguageProperty,
    +1578        "LOCATION": LocationProperty,
    +1579        "PARTITIONED_BY": PartitionedByProperty,
    +1580        "RETURNS": ReturnsProperty,
    +1581        "SORTKEY": SortKeyProperty,
    +1582        "TABLE_FORMAT": TableFormatProperty,
    +1583    }
    +1584
    +1585    PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()}
    +1586
    +1587    # CREATE property locations
    +1588    # Form: schema specified
    +1589    #   create [POST_CREATE]
    +1590    #     table a [POST_NAME]
    +1591    #     (b int) [POST_SCHEMA]
    +1592    #     with ([POST_WITH])
    +1593    #     index (b) [POST_INDEX]
    +1594    #
    +1595    # Form: alias selection
    +1596    #   create [POST_CREATE]
    +1597    #     table a [POST_NAME]
    +1598    #     as [POST_ALIAS] (select * from b) [POST_EXPRESSION]
    +1599    #     index (c) [POST_INDEX]
    +1600    class Location(AutoName):
    +1601        POST_CREATE = auto()
    +1602        POST_NAME = auto()
    +1603        POST_SCHEMA = auto()
    +1604        POST_WITH = auto()
    +1605        POST_ALIAS = auto()
    +1606        POST_EXPRESSION = auto()
    +1607        POST_INDEX = auto()
    +1608        UNSUPPORTED = auto()
    +1609
    +1610    @classmethod
    +1611    def from_dict(cls, properties_dict) -> Properties:
    +1612        expressions = []
    +1613        for key, value in properties_dict.items():
    +1614            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    +1615            if property_cls:
    +1616                expressions.append(property_cls(this=convert(value)))
    +1617            else:
    +1618                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    +1619
    +1620        return cls(expressions=expressions)
     
    @@ -18584,17 +18688,17 @@ Otherwise, this resets the expression.
    -
    1605    @classmethod
    -1606    def from_dict(cls, properties_dict) -> Properties:
    -1607        expressions = []
    -1608        for key, value in properties_dict.items():
    -1609            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    -1610            if property_cls:
    -1611                expressions.append(property_cls(this=convert(value)))
    -1612            else:
    -1613                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    -1614
    -1615        return cls(expressions=expressions)
    +            
    1610    @classmethod
    +1611    def from_dict(cls, properties_dict) -> Properties:
    +1612        expressions = []
    +1613        for key, value in properties_dict.items():
    +1614            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    +1615            if property_cls:
    +1616                expressions.append(property_cls(this=convert(value)))
    +1617            else:
    +1618                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    +1619
    +1620        return cls(expressions=expressions)
     
    @@ -18656,15 +18760,15 @@ Otherwise, this resets the expression.
    -
    1595    class Location(AutoName):
    -1596        POST_CREATE = auto()
    -1597        POST_NAME = auto()
    -1598        POST_SCHEMA = auto()
    -1599        POST_WITH = auto()
    -1600        POST_ALIAS = auto()
    -1601        POST_EXPRESSION = auto()
    -1602        POST_INDEX = auto()
    -1603        UNSUPPORTED = auto()
    +            
    1600    class Location(AutoName):
    +1601        POST_CREATE = auto()
    +1602        POST_NAME = auto()
    +1603        POST_SCHEMA = auto()
    +1604        POST_WITH = auto()
    +1605        POST_ALIAS = auto()
    +1606        POST_EXPRESSION = auto()
    +1607        POST_INDEX = auto()
    +1608        UNSUPPORTED = auto()
     
    @@ -18790,8 +18894,8 @@ Otherwise, this resets the expression.
    -
    1618class Qualify(Expression):
    -1619    pass
    +            
    1623class Qualify(Expression):
    +1624    pass
     
    @@ -18852,8 +18956,8 @@ Otherwise, this resets the expression.
    -
    1623class Return(Expression):
    -1624    pass
    +            
    1628class Return(Expression):
    +1629    pass
     
    @@ -18914,8 +19018,8 @@ Otherwise, this resets the expression.
    -
    1627class Reference(Expression):
    -1628    arg_types = {"this": True, "expressions": False, "options": False}
    +            
    1632class Reference(Expression):
    +1633    arg_types = {"this": True, "expressions": False, "options": False}
     
    @@ -18976,8 +19080,8 @@ Otherwise, this resets the expression.
    -
    1631class Tuple(Expression):
    -1632    arg_types = {"expressions": False}
    +            
    1636class Tuple(Expression):
    +1637    arg_types = {"expressions": False}
     
    @@ -19038,103 +19142,103 @@ Otherwise, this resets the expression.
    -
    1635class Subqueryable(Unionable):
    -1636    def subquery(self, alias=None, copy=True) -> Subquery:
    -1637        """
    -1638        Convert this expression to an aliased expression that can be used as a Subquery.
    -1639
    -1640        Example:
    -1641            >>> subquery = Select().select("x").from_("tbl").subquery()
    -1642            >>> Select().select("x").from_(subquery).sql()
    -1643            'SELECT x FROM (SELECT x FROM tbl)'
    +            
    1640class Subqueryable(Unionable):
    +1641    def subquery(self, alias=None, copy=True) -> Subquery:
    +1642        """
    +1643        Convert this expression to an aliased expression that can be used as a Subquery.
     1644
    -1645        Args:
    -1646            alias (str | Identifier): an optional alias for the subquery
    -1647            copy (bool): if `False`, modify this expression instance in-place.
    -1648
    -1649        Returns:
    -1650            Alias: the subquery
    -1651        """
    -1652        instance = _maybe_copy(self, copy)
    -1653        return Subquery(
    -1654            this=instance,
    -1655            alias=TableAlias(this=to_identifier(alias)),
    -1656        )
    -1657
    -1658    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1659        raise NotImplementedError
    -1660
    -1661    @property
    -1662    def ctes(self):
    -1663        with_ = self.args.get("with")
    -1664        if not with_:
    -1665            return []
    -1666        return with_.expressions
    -1667
    -1668    @property
    -1669    def selects(self):
    -1670        raise NotImplementedError("Subqueryable objects must implement `selects`")
    -1671
    -1672    @property
    -1673    def named_selects(self):
    -1674        raise NotImplementedError("Subqueryable objects must implement `named_selects`")
    -1675
    -1676    def with_(
    -1677        self,
    -1678        alias,
    -1679        as_,
    -1680        recursive=None,
    -1681        append=True,
    -1682        dialect=None,
    -1683        copy=True,
    -1684        **opts,
    -1685    ):
    -1686        """
    -1687        Append to or set the common table expressions.
    -1688
    -1689        Example:
    -1690            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    -1691            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    -1692
    -1693        Args:
    -1694            alias (str | Expression): the SQL code string to parse as the table name.
    -1695                If an `Expression` instance is passed, this is used as-is.
    -1696            as_ (str | Expression): the SQL code string to parse as the table expression.
    -1697                If an `Expression` instance is passed, it will be used as-is.
    -1698            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    -1699            append (bool): if `True`, add to any existing expressions.
    -1700                Otherwise, this resets the expressions.
    -1701            dialect (str): the dialect used to parse the input expression.
    -1702            copy (bool): if `False`, modify this expression instance in-place.
    -1703            opts (kwargs): other options to use to parse the input expressions.
    -1704
    -1705        Returns:
    -1706            Select: the modified expression.
    -1707        """
    -1708        alias_expression = maybe_parse(
    -1709            alias,
    -1710            dialect=dialect,
    -1711            into=TableAlias,
    -1712            **opts,
    -1713        )
    -1714        as_expression = maybe_parse(
    -1715            as_,
    -1716            dialect=dialect,
    +1645        Example:
    +1646            >>> subquery = Select().select("x").from_("tbl").subquery()
    +1647            >>> Select().select("x").from_(subquery).sql()
    +1648            'SELECT x FROM (SELECT x FROM tbl)'
    +1649
    +1650        Args:
    +1651            alias (str | Identifier): an optional alias for the subquery
    +1652            copy (bool): if `False`, modify this expression instance in-place.
    +1653
    +1654        Returns:
    +1655            Alias: the subquery
    +1656        """
    +1657        instance = _maybe_copy(self, copy)
    +1658        return Subquery(
    +1659            this=instance,
    +1660            alias=TableAlias(this=to_identifier(alias)),
    +1661        )
    +1662
    +1663    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +1664        raise NotImplementedError
    +1665
    +1666    @property
    +1667    def ctes(self):
    +1668        with_ = self.args.get("with")
    +1669        if not with_:
    +1670            return []
    +1671        return with_.expressions
    +1672
    +1673    @property
    +1674    def selects(self):
    +1675        raise NotImplementedError("Subqueryable objects must implement `selects`")
    +1676
    +1677    @property
    +1678    def named_selects(self):
    +1679        raise NotImplementedError("Subqueryable objects must implement `named_selects`")
    +1680
    +1681    def with_(
    +1682        self,
    +1683        alias,
    +1684        as_,
    +1685        recursive=None,
    +1686        append=True,
    +1687        dialect=None,
    +1688        copy=True,
    +1689        **opts,
    +1690    ):
    +1691        """
    +1692        Append to or set the common table expressions.
    +1693
    +1694        Example:
    +1695            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    +1696            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    +1697
    +1698        Args:
    +1699            alias (str | Expression): the SQL code string to parse as the table name.
    +1700                If an `Expression` instance is passed, this is used as-is.
    +1701            as_ (str | Expression): the SQL code string to parse as the table expression.
    +1702                If an `Expression` instance is passed, it will be used as-is.
    +1703            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    +1704            append (bool): if `True`, add to any existing expressions.
    +1705                Otherwise, this resets the expressions.
    +1706            dialect (str): the dialect used to parse the input expression.
    +1707            copy (bool): if `False`, modify this expression instance in-place.
    +1708            opts (kwargs): other options to use to parse the input expressions.
    +1709
    +1710        Returns:
    +1711            Select: the modified expression.
    +1712        """
    +1713        alias_expression = maybe_parse(
    +1714            alias,
    +1715            dialect=dialect,
    +1716            into=TableAlias,
     1717            **opts,
     1718        )
    -1719        cte = CTE(
    -1720            this=as_expression,
    -1721            alias=alias_expression,
    -1722        )
    -1723        return _apply_child_list_builder(
    -1724            cte,
    -1725            instance=self,
    -1726            arg="with",
    -1727            append=append,
    -1728            copy=copy,
    -1729            into=With,
    -1730            properties={"recursive": recursive or False},
    -1731        )
    +1719        as_expression = maybe_parse(
    +1720            as_,
    +1721            dialect=dialect,
    +1722            **opts,
    +1723        )
    +1724        cte = CTE(
    +1725            this=as_expression,
    +1726            alias=alias_expression,
    +1727        )
    +1728        return _apply_child_list_builder(
    +1729            cte,
    +1730            instance=self,
    +1731            arg="with",
    +1732            append=append,
    +1733            copy=copy,
    +1734            into=With,
    +1735            properties={"recursive": recursive or False},
    +1736        )
     
    @@ -19151,27 +19255,27 @@ Otherwise, this resets the expression.
    -
    1636    def subquery(self, alias=None, copy=True) -> Subquery:
    -1637        """
    -1638        Convert this expression to an aliased expression that can be used as a Subquery.
    -1639
    -1640        Example:
    -1641            >>> subquery = Select().select("x").from_("tbl").subquery()
    -1642            >>> Select().select("x").from_(subquery).sql()
    -1643            'SELECT x FROM (SELECT x FROM tbl)'
    +            
    1641    def subquery(self, alias=None, copy=True) -> Subquery:
    +1642        """
    +1643        Convert this expression to an aliased expression that can be used as a Subquery.
     1644
    -1645        Args:
    -1646            alias (str | Identifier): an optional alias for the subquery
    -1647            copy (bool): if `False`, modify this expression instance in-place.
    -1648
    -1649        Returns:
    -1650            Alias: the subquery
    -1651        """
    -1652        instance = _maybe_copy(self, copy)
    -1653        return Subquery(
    -1654            this=instance,
    -1655            alias=TableAlias(this=to_identifier(alias)),
    -1656        )
    +1645        Example:
    +1646            >>> subquery = Select().select("x").from_("tbl").subquery()
    +1647            >>> Select().select("x").from_(subquery).sql()
    +1648            'SELECT x FROM (SELECT x FROM tbl)'
    +1649
    +1650        Args:
    +1651            alias (str | Identifier): an optional alias for the subquery
    +1652            copy (bool): if `False`, modify this expression instance in-place.
    +1653
    +1654        Returns:
    +1655            Alias: the subquery
    +1656        """
    +1657        instance = _maybe_copy(self, copy)
    +1658        return Subquery(
    +1659            this=instance,
    +1660            alias=TableAlias(this=to_identifier(alias)),
    +1661        )
     
    @@ -19215,8 +19319,8 @@ Otherwise, this resets the expression.
    -
    1658    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1659        raise NotImplementedError
    +            
    1663    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +1664        raise NotImplementedError
     
    @@ -19234,62 +19338,62 @@ Otherwise, this resets the expression.
    -
    1676    def with_(
    -1677        self,
    -1678        alias,
    -1679        as_,
    -1680        recursive=None,
    -1681        append=True,
    -1682        dialect=None,
    -1683        copy=True,
    -1684        **opts,
    -1685    ):
    -1686        """
    -1687        Append to or set the common table expressions.
    -1688
    -1689        Example:
    -1690            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    -1691            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    -1692
    -1693        Args:
    -1694            alias (str | Expression): the SQL code string to parse as the table name.
    -1695                If an `Expression` instance is passed, this is used as-is.
    -1696            as_ (str | Expression): the SQL code string to parse as the table expression.
    -1697                If an `Expression` instance is passed, it will be used as-is.
    -1698            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    -1699            append (bool): if `True`, add to any existing expressions.
    -1700                Otherwise, this resets the expressions.
    -1701            dialect (str): the dialect used to parse the input expression.
    -1702            copy (bool): if `False`, modify this expression instance in-place.
    -1703            opts (kwargs): other options to use to parse the input expressions.
    -1704
    -1705        Returns:
    -1706            Select: the modified expression.
    -1707        """
    -1708        alias_expression = maybe_parse(
    -1709            alias,
    -1710            dialect=dialect,
    -1711            into=TableAlias,
    -1712            **opts,
    -1713        )
    -1714        as_expression = maybe_parse(
    -1715            as_,
    -1716            dialect=dialect,
    +            
    1681    def with_(
    +1682        self,
    +1683        alias,
    +1684        as_,
    +1685        recursive=None,
    +1686        append=True,
    +1687        dialect=None,
    +1688        copy=True,
    +1689        **opts,
    +1690    ):
    +1691        """
    +1692        Append to or set the common table expressions.
    +1693
    +1694        Example:
    +1695            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    +1696            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    +1697
    +1698        Args:
    +1699            alias (str | Expression): the SQL code string to parse as the table name.
    +1700                If an `Expression` instance is passed, this is used as-is.
    +1701            as_ (str | Expression): the SQL code string to parse as the table expression.
    +1702                If an `Expression` instance is passed, it will be used as-is.
    +1703            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    +1704            append (bool): if `True`, add to any existing expressions.
    +1705                Otherwise, this resets the expressions.
    +1706            dialect (str): the dialect used to parse the input expression.
    +1707            copy (bool): if `False`, modify this expression instance in-place.
    +1708            opts (kwargs): other options to use to parse the input expressions.
    +1709
    +1710        Returns:
    +1711            Select: the modified expression.
    +1712        """
    +1713        alias_expression = maybe_parse(
    +1714            alias,
    +1715            dialect=dialect,
    +1716            into=TableAlias,
     1717            **opts,
     1718        )
    -1719        cte = CTE(
    -1720            this=as_expression,
    -1721            alias=alias_expression,
    -1722        )
    -1723        return _apply_child_list_builder(
    -1724            cte,
    -1725            instance=self,
    -1726            arg="with",
    -1727            append=append,
    -1728            copy=copy,
    -1729            into=With,
    -1730            properties={"recursive": recursive or False},
    -1731        )
    +1719        as_expression = maybe_parse(
    +1720            as_,
    +1721            dialect=dialect,
    +1722            **opts,
    +1723        )
    +1724        cte = CTE(
    +1725            this=as_expression,
    +1726            alias=alias_expression,
    +1727        )
    +1728        return _apply_child_list_builder(
    +1729            cte,
    +1730            instance=self,
    +1731            arg="with",
    +1732            append=append,
    +1733            copy=copy,
    +1734            into=With,
    +1735            properties={"recursive": recursive or False},
    +1736        )
     
    @@ -19390,26 +19494,26 @@ Otherwise, this resets the expressions.
    -
    1754class Table(Expression):
    -1755    arg_types = {
    -1756        "this": True,
    -1757        "alias": False,
    -1758        "db": False,
    -1759        "catalog": False,
    -1760        "laterals": False,
    -1761        "joins": False,
    -1762        "pivots": False,
    -1763        "hints": False,
    -1764        "system_time": False,
    -1765    }
    -1766
    -1767    @property
    -1768    def db(self) -> str:
    -1769        return self.text("db")
    -1770
    -1771    @property
    -1772    def catalog(self) -> str:
    -1773        return self.text("catalog")
    +            
    1760class Table(Expression):
    +1761    arg_types = {
    +1762        "this": True,
    +1763        "alias": False,
    +1764        "db": False,
    +1765        "catalog": False,
    +1766        "laterals": False,
    +1767        "joins": False,
    +1768        "pivots": False,
    +1769        "hints": False,
    +1770        "system_time": False,
    +1771    }
    +1772
    +1773    @property
    +1774    def db(self) -> str:
    +1775        return self.text("db")
    +1776
    +1777    @property
    +1778    def catalog(self) -> str:
    +1779        return self.text("catalog")
     
    @@ -19470,12 +19574,12 @@ Otherwise, this resets the expressions.
    -
    1777class SystemTime(Expression):
    -1778    arg_types = {
    -1779        "this": False,
    -1780        "expression": False,
    -1781        "kind": True,
    -1782    }
    +            
    1783class SystemTime(Expression):
    +1784    arg_types = {
    +1785        "this": False,
    +1786        "expression": False,
    +1787        "kind": True,
    +1788    }
     
    @@ -19536,94 +19640,94 @@ Otherwise, this resets the expressions.
    -
    1785class Union(Subqueryable):
    -1786    arg_types = {
    -1787        "with": False,
    -1788        "this": True,
    -1789        "expression": True,
    -1790        "distinct": False,
    -1791        **QUERY_MODIFIERS,
    -1792    }
    -1793
    -1794    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1795        """
    -1796        Set the LIMIT expression.
    -1797
    -1798        Example:
    -1799            >>> select("1").union(select("1")).limit(1).sql()
    -1800            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    -1801
    -1802        Args:
    -1803            expression (str | int | Expression): the SQL code string to parse.
    -1804                This can also be an integer.
    -1805                If a `Limit` instance is passed, this is used as-is.
    -1806                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -1807            dialect (str): the dialect used to parse the input expression.
    -1808            copy (bool): if `False`, modify this expression instance in-place.
    -1809            opts (kwargs): other options to use to parse the input expressions.
    -1810
    -1811        Returns:
    -1812            Select: The limited subqueryable.
    -1813        """
    -1814        return (
    -1815            select("*")
    -1816            .from_(self.subquery(alias="_l_0", copy=copy))
    -1817            .limit(expression, dialect=dialect, copy=False, **opts)
    -1818        )
    -1819
    -1820    def select(
    -1821        self,
    -1822        *expressions: str | Expression,
    -1823        append: bool = True,
    -1824        dialect: DialectType = None,
    -1825        copy: bool = True,
    -1826        **opts,
    -1827    ) -> Union:
    -1828        """Append to or set the SELECT of the union recursively.
    -1829
    -1830        Example:
    -1831            >>> from sqlglot import parse_one
    -1832            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    -1833            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    -1834
    -1835        Args:
    -1836            *expressions: the SQL code strings to parse.
    -1837                If an `Expression` instance is passed, it will be used as-is.
    -1838            append: if `True`, add to any existing expressions.
    -1839                Otherwise, this resets the expressions.
    -1840            dialect: the dialect used to parse the input expressions.
    -1841            copy: if `False`, modify this expression instance in-place.
    -1842            opts: other options to use to parse the input expressions.
    -1843
    -1844        Returns:
    -1845            Union: the modified expression.
    -1846        """
    -1847        this = self.copy() if copy else self
    -1848        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    -1849        this.expression.unnest().select(
    -1850            *expressions, append=append, dialect=dialect, copy=False, **opts
    -1851        )
    -1852        return this
    -1853
    -1854    @property
    -1855    def named_selects(self):
    -1856        return self.this.unnest().named_selects
    -1857
    -1858    @property
    -1859    def is_star(self) -> bool:
    -1860        return self.this.is_star or self.expression.is_star
    -1861
    -1862    @property
    -1863    def selects(self):
    -1864        return self.this.unnest().selects
    -1865
    -1866    @property
    -1867    def left(self):
    -1868        return self.this
    -1869
    -1870    @property
    -1871    def right(self):
    -1872        return self.expression
    +            
    1791class Union(Subqueryable):
    +1792    arg_types = {
    +1793        "with": False,
    +1794        "this": True,
    +1795        "expression": True,
    +1796        "distinct": False,
    +1797        **QUERY_MODIFIERS,
    +1798    }
    +1799
    +1800    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +1801        """
    +1802        Set the LIMIT expression.
    +1803
    +1804        Example:
    +1805            >>> select("1").union(select("1")).limit(1).sql()
    +1806            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    +1807
    +1808        Args:
    +1809            expression (str | int | Expression): the SQL code string to parse.
    +1810                This can also be an integer.
    +1811                If a `Limit` instance is passed, this is used as-is.
    +1812                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +1813            dialect (str): the dialect used to parse the input expression.
    +1814            copy (bool): if `False`, modify this expression instance in-place.
    +1815            opts (kwargs): other options to use to parse the input expressions.
    +1816
    +1817        Returns:
    +1818            Select: The limited subqueryable.
    +1819        """
    +1820        return (
    +1821            select("*")
    +1822            .from_(self.subquery(alias="_l_0", copy=copy))
    +1823            .limit(expression, dialect=dialect, copy=False, **opts)
    +1824        )
    +1825
    +1826    def select(
    +1827        self,
    +1828        *expressions: str | Expression,
    +1829        append: bool = True,
    +1830        dialect: DialectType = None,
    +1831        copy: bool = True,
    +1832        **opts,
    +1833    ) -> Union:
    +1834        """Append to or set the SELECT of the union recursively.
    +1835
    +1836        Example:
    +1837            >>> from sqlglot import parse_one
    +1838            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    +1839            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    +1840
    +1841        Args:
    +1842            *expressions: the SQL code strings to parse.
    +1843                If an `Expression` instance is passed, it will be used as-is.
    +1844            append: if `True`, add to any existing expressions.
    +1845                Otherwise, this resets the expressions.
    +1846            dialect: the dialect used to parse the input expressions.
    +1847            copy: if `False`, modify this expression instance in-place.
    +1848            opts: other options to use to parse the input expressions.
    +1849
    +1850        Returns:
    +1851            Union: the modified expression.
    +1852        """
    +1853        this = self.copy() if copy else self
    +1854        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    +1855        this.expression.unnest().select(
    +1856            *expressions, append=append, dialect=dialect, copy=False, **opts
    +1857        )
    +1858        return this
    +1859
    +1860    @property
    +1861    def named_selects(self):
    +1862        return self.this.unnest().named_selects
    +1863
    +1864    @property
    +1865    def is_star(self) -> bool:
    +1866        return self.this.is_star or self.expression.is_star
    +1867
    +1868    @property
    +1869    def selects(self):
    +1870        return self.this.unnest().selects
    +1871
    +1872    @property
    +1873    def left(self):
    +1874        return self.this
    +1875
    +1876    @property
    +1877    def right(self):
    +1878        return self.expression
     
    @@ -19640,31 +19744,31 @@ Otherwise, this resets the expressions.
    -
    1794    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1795        """
    -1796        Set the LIMIT expression.
    -1797
    -1798        Example:
    -1799            >>> select("1").union(select("1")).limit(1).sql()
    -1800            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    -1801
    -1802        Args:
    -1803            expression (str | int | Expression): the SQL code string to parse.
    -1804                This can also be an integer.
    -1805                If a `Limit` instance is passed, this is used as-is.
    -1806                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -1807            dialect (str): the dialect used to parse the input expression.
    -1808            copy (bool): if `False`, modify this expression instance in-place.
    -1809            opts (kwargs): other options to use to parse the input expressions.
    -1810
    -1811        Returns:
    -1812            Select: The limited subqueryable.
    -1813        """
    -1814        return (
    -1815            select("*")
    -1816            .from_(self.subquery(alias="_l_0", copy=copy))
    -1817            .limit(expression, dialect=dialect, copy=False, **opts)
    -1818        )
    +            
    1800    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +1801        """
    +1802        Set the LIMIT expression.
    +1803
    +1804        Example:
    +1805            >>> select("1").union(select("1")).limit(1).sql()
    +1806            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    +1807
    +1808        Args:
    +1809            expression (str | int | Expression): the SQL code string to parse.
    +1810                This can also be an integer.
    +1811                If a `Limit` instance is passed, this is used as-is.
    +1812                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +1813            dialect (str): the dialect used to parse the input expression.
    +1814            copy (bool): if `False`, modify this expression instance in-place.
    +1815            opts (kwargs): other options to use to parse the input expressions.
    +1816
    +1817        Returns:
    +1818            Select: The limited subqueryable.
    +1819        """
    +1820        return (
    +1821            select("*")
    +1822            .from_(self.subquery(alias="_l_0", copy=copy))
    +1823            .limit(expression, dialect=dialect, copy=False, **opts)
    +1824        )
     
    @@ -19712,39 +19816,39 @@ If another Expression instance is passed,
    -
    1820    def select(
    -1821        self,
    -1822        *expressions: str | Expression,
    -1823        append: bool = True,
    -1824        dialect: DialectType = None,
    -1825        copy: bool = True,
    -1826        **opts,
    -1827    ) -> Union:
    -1828        """Append to or set the SELECT of the union recursively.
    -1829
    -1830        Example:
    -1831            >>> from sqlglot import parse_one
    -1832            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    -1833            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    -1834
    -1835        Args:
    -1836            *expressions: the SQL code strings to parse.
    -1837                If an `Expression` instance is passed, it will be used as-is.
    -1838            append: if `True`, add to any existing expressions.
    -1839                Otherwise, this resets the expressions.
    -1840            dialect: the dialect used to parse the input expressions.
    -1841            copy: if `False`, modify this expression instance in-place.
    -1842            opts: other options to use to parse the input expressions.
    -1843
    -1844        Returns:
    -1845            Union: the modified expression.
    -1846        """
    -1847        this = self.copy() if copy else self
    -1848        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    -1849        this.expression.unnest().select(
    -1850            *expressions, append=append, dialect=dialect, copy=False, **opts
    -1851        )
    -1852        return this
    +            
    1826    def select(
    +1827        self,
    +1828        *expressions: str | Expression,
    +1829        append: bool = True,
    +1830        dialect: DialectType = None,
    +1831        copy: bool = True,
    +1832        **opts,
    +1833    ) -> Union:
    +1834        """Append to or set the SELECT of the union recursively.
    +1835
    +1836        Example:
    +1837            >>> from sqlglot import parse_one
    +1838            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    +1839            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    +1840
    +1841        Args:
    +1842            *expressions: the SQL code strings to parse.
    +1843                If an `Expression` instance is passed, it will be used as-is.
    +1844            append: if `True`, add to any existing expressions.
    +1845                Otherwise, this resets the expressions.
    +1846            dialect: the dialect used to parse the input expressions.
    +1847            copy: if `False`, modify this expression instance in-place.
    +1848            opts: other options to use to parse the input expressions.
    +1849
    +1850        Returns:
    +1851            Union: the modified expression.
    +1852        """
    +1853        this = self.copy() if copy else self
    +1854        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    +1855        this.expression.unnest().select(
    +1856            *expressions, append=append, dialect=dialect, copy=False, **opts
    +1857        )
    +1858        return this
     
    @@ -19860,8 +19964,8 @@ Otherwise, this resets the expressions.
    -
    1875class Except(Union):
    -1876    pass
    +            
    1881class Except(Union):
    +1882    pass
     
    @@ -19938,8 +20042,8 @@ Otherwise, this resets the expressions.
    -
    1879class Intersect(Union):
    -1880    pass
    +            
    1885class Intersect(Union):
    +1886    pass
     
    @@ -20016,13 +20120,13 @@ Otherwise, this resets the expressions.
    -
    1883class Unnest(UDTF):
    -1884    arg_types = {
    -1885        "expressions": True,
    -1886        "ordinality": False,
    -1887        "alias": False,
    -1888        "offset": False,
    -1889    }
    +            
    1889class Unnest(UDTF):
    +1890    arg_types = {
    +1891        "expressions": True,
    +1892        "ordinality": False,
    +1893        "alias": False,
    +1894        "offset": False,
    +1895    }
     
    @@ -20089,14 +20193,15 @@ Otherwise, this resets the expressions.
    -
    1892class Update(Expression):
    -1893    arg_types = {
    -1894        "with": False,
    -1895        "this": False,
    -1896        "expressions": True,
    -1897        "from": False,
    -1898        "where": False,
    -1899    }
    +            
    1898class Update(Expression):
    +1899    arg_types = {
    +1900        "with": False,
    +1901        "this": False,
    +1902        "expressions": True,
    +1903        "from": False,
    +1904        "where": False,
    +1905        "returning": False,
    +1906    }
     
    @@ -20157,12 +20262,12 @@ Otherwise, this resets the expressions.
    -
    1902class Values(UDTF):
    -1903    arg_types = {
    -1904        "expressions": True,
    -1905        "ordinality": False,
    -1906        "alias": False,
    -1907    }
    +            
    1909class Values(UDTF):
    +1910    arg_types = {
    +1911        "expressions": True,
    +1912        "ordinality": False,
    +1913        "alias": False,
    +1914    }
     
    @@ -20229,8 +20334,8 @@ Otherwise, this resets the expressions.
    -
    1910class Var(Expression):
    -1911    pass
    +            
    1917class Var(Expression):
    +1918    pass
     
    @@ -20291,8 +20396,8 @@ Otherwise, this resets the expressions.
    -
    1914class Schema(Expression):
    -1915    arg_types = {"this": False, "expressions": False}
    +            
    1921class Schema(Expression):
    +1922    arg_types = {"this": False, "expressions": False}
     
    @@ -20353,8 +20458,8 @@ Otherwise, this resets the expressions.
    -
    1920class Lock(Expression):
    -1921    arg_types = {"update": True}
    +            
    1927class Lock(Expression):
    +1928    arg_types = {"update": True}
     
    @@ -20415,578 +20520,590 @@ Otherwise, this resets the expressions.
    -
    1924class Select(Subqueryable):
    -1925    arg_types = {
    -1926        "with": False,
    -1927        "expressions": False,
    -1928        "hint": False,
    -1929        "distinct": False,
    -1930        "into": False,
    -1931        "from": False,
    -1932        **QUERY_MODIFIERS,
    -1933    }
    -1934
    -1935    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -1936        """
    -1937        Set the FROM expression.
    -1938
    -1939        Example:
    -1940            >>> Select().from_("tbl").select("x").sql()
    -1941            'SELECT x FROM tbl'
    -1942
    -1943        Args:
    -1944            *expressions (str | Expression): the SQL code strings to parse.
    -1945                If a `From` instance is passed, this is used as-is.
    -1946                If another `Expression` instance is passed, it will be wrapped in a `From`.
    -1947            append (bool): if `True`, add to any existing expressions.
    -1948                Otherwise, this flattens all the `From` expression into a single expression.
    -1949            dialect (str): the dialect used to parse the input expression.
    -1950            copy (bool): if `False`, modify this expression instance in-place.
    -1951            opts (kwargs): other options to use to parse the input expressions.
    -1952
    -1953        Returns:
    -1954            Select: the modified expression.
    -1955        """
    -1956        return _apply_child_list_builder(
    -1957            *expressions,
    -1958            instance=self,
    -1959            arg="from",
    -1960            append=append,
    -1961            copy=copy,
    -1962            prefix="FROM",
    -1963            into=From,
    -1964            dialect=dialect,
    -1965            **opts,
    -1966        )
    -1967
    -1968    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -1969        """
    -1970        Set the GROUP BY expression.
    -1971
    -1972        Example:
    -1973            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    -1974            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    -1975
    -1976        Args:
    -1977            *expressions (str | Expression): the SQL code strings to parse.
    -1978                If a `Group` instance is passed, this is used as-is.
    -1979                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    -1980                If nothing is passed in then a group by is not applied to the expression
    -1981            append (bool): if `True`, add to any existing expressions.
    -1982                Otherwise, this flattens all the `Group` expression into a single expression.
    -1983            dialect (str): the dialect used to parse the input expression.
    -1984            copy (bool): if `False`, modify this expression instance in-place.
    -1985            opts (kwargs): other options to use to parse the input expressions.
    -1986
    -1987        Returns:
    -1988            Select: the modified expression.
    -1989        """
    -1990        if not expressions:
    -1991            return self if not copy else self.copy()
    -1992        return _apply_child_list_builder(
    -1993            *expressions,
    -1994            instance=self,
    -1995            arg="group",
    -1996            append=append,
    -1997            copy=copy,
    -1998            prefix="GROUP BY",
    -1999            into=Group,
    -2000            dialect=dialect,
    -2001            **opts,
    -2002        )
    -2003
    -2004    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2005        """
    -2006        Set the ORDER BY expression.
    -2007
    -2008        Example:
    -2009            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    -2010            'SELECT x FROM tbl ORDER BY x DESC'
    -2011
    -2012        Args:
    -2013            *expressions (str | Expression): the SQL code strings to parse.
    -2014                If a `Group` instance is passed, this is used as-is.
    -2015                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    -2016            append (bool): if `True`, add to any existing expressions.
    -2017                Otherwise, this flattens all the `Order` expression into a single expression.
    -2018            dialect (str): the dialect used to parse the input expression.
    -2019            copy (bool): if `False`, modify this expression instance in-place.
    -2020            opts (kwargs): other options to use to parse the input expressions.
    -2021
    -2022        Returns:
    -2023            Select: the modified expression.
    -2024        """
    -2025        return _apply_child_list_builder(
    -2026            *expressions,
    -2027            instance=self,
    -2028            arg="order",
    -2029            append=append,
    -2030            copy=copy,
    -2031            prefix="ORDER BY",
    -2032            into=Order,
    -2033            dialect=dialect,
    -2034            **opts,
    -2035        )
    -2036
    -2037    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2038        """
    -2039        Set the SORT BY expression.
    -2040
    -2041        Example:
    -2042            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    -2043            'SELECT x FROM tbl SORT BY x DESC'
    -2044
    -2045        Args:
    -2046            *expressions (str | Expression): the SQL code strings to parse.
    -2047                If a `Group` instance is passed, this is used as-is.
    -2048                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    -2049            append (bool): if `True`, add to any existing expressions.
    -2050                Otherwise, this flattens all the `Order` expression into a single expression.
    -2051            dialect (str): the dialect used to parse the input expression.
    -2052            copy (bool): if `False`, modify this expression instance in-place.
    -2053            opts (kwargs): other options to use to parse the input expressions.
    -2054
    -2055        Returns:
    -2056            Select: the modified expression.
    -2057        """
    -2058        return _apply_child_list_builder(
    -2059            *expressions,
    -2060            instance=self,
    -2061            arg="sort",
    -2062            append=append,
    -2063            copy=copy,
    -2064            prefix="SORT BY",
    -2065            into=Sort,
    -2066            dialect=dialect,
    -2067            **opts,
    -2068        )
    -2069
    -2070    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2071        """
    -2072        Set the CLUSTER BY expression.
    -2073
    -2074        Example:
    -2075            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    -2076            'SELECT x FROM tbl CLUSTER BY x DESC'
    -2077
    -2078        Args:
    -2079            *expressions (str | Expression): the SQL code strings to parse.
    -2080                If a `Group` instance is passed, this is used as-is.
    -2081                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    -2082            append (bool): if `True`, add to any existing expressions.
    -2083                Otherwise, this flattens all the `Order` expression into a single expression.
    -2084            dialect (str): the dialect used to parse the input expression.
    -2085            copy (bool): if `False`, modify this expression instance in-place.
    -2086            opts (kwargs): other options to use to parse the input expressions.
    -2087
    -2088        Returns:
    -2089            Select: the modified expression.
    -2090        """
    -2091        return _apply_child_list_builder(
    -2092            *expressions,
    -2093            instance=self,
    -2094            arg="cluster",
    -2095            append=append,
    -2096            copy=copy,
    -2097            prefix="CLUSTER BY",
    -2098            into=Cluster,
    -2099            dialect=dialect,
    -2100            **opts,
    -2101        )
    -2102
    -2103    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2104        """
    -2105        Set the LIMIT expression.
    -2106
    -2107        Example:
    -2108            >>> Select().from_("tbl").select("x").limit(10).sql()
    -2109            'SELECT x FROM tbl LIMIT 10'
    -2110
    -2111        Args:
    -2112            expression (str | int | Expression): the SQL code string to parse.
    -2113                This can also be an integer.
    -2114                If a `Limit` instance is passed, this is used as-is.
    -2115                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -2116            dialect (str): the dialect used to parse the input expression.
    -2117            copy (bool): if `False`, modify this expression instance in-place.
    -2118            opts (kwargs): other options to use to parse the input expressions.
    -2119
    -2120        Returns:
    -2121            Select: the modified expression.
    -2122        """
    -2123        return _apply_builder(
    -2124            expression=expression,
    -2125            instance=self,
    -2126            arg="limit",
    -2127            into=Limit,
    -2128            prefix="LIMIT",
    -2129            dialect=dialect,
    -2130            copy=copy,
    -2131            **opts,
    -2132        )
    -2133
    -2134    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2135        """
    -2136        Set the OFFSET expression.
    -2137
    -2138        Example:
    -2139            >>> Select().from_("tbl").select("x").offset(10).sql()
    -2140            'SELECT x FROM tbl OFFSET 10'
    -2141
    -2142        Args:
    -2143            expression (str | int | Expression): the SQL code string to parse.
    -2144                This can also be an integer.
    -2145                If a `Offset` instance is passed, this is used as-is.
    -2146                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    -2147            dialect (str): the dialect used to parse the input expression.
    -2148            copy (bool): if `False`, modify this expression instance in-place.
    -2149            opts (kwargs): other options to use to parse the input expressions.
    -2150
    -2151        Returns:
    -2152            Select: the modified expression.
    -2153        """
    -2154        return _apply_builder(
    -2155            expression=expression,
    -2156            instance=self,
    -2157            arg="offset",
    -2158            into=Offset,
    -2159            prefix="OFFSET",
    -2160            dialect=dialect,
    -2161            copy=copy,
    -2162            **opts,
    -2163        )
    -2164
    -2165    def select(
    -2166        self,
    -2167        *expressions: str | Expression,
    -2168        append: bool = True,
    -2169        dialect: DialectType = None,
    -2170        copy: bool = True,
    -2171        **opts,
    -2172    ) -> Select:
    -2173        """
    -2174        Append to or set the SELECT expressions.
    -2175
    -2176        Example:
    -2177            >>> Select().select("x", "y").sql()
    -2178            'SELECT x, y'
    -2179
    -2180        Args:
    -2181            *expressions: the SQL code strings to parse.
    -2182                If an `Expression` instance is passed, it will be used as-is.
    -2183            append: if `True`, add to any existing expressions.
    -2184                Otherwise, this resets the expressions.
    -2185            dialect: the dialect used to parse the input expressions.
    -2186            copy: if `False`, modify this expression instance in-place.
    -2187            opts: other options to use to parse the input expressions.
    -2188
    -2189        Returns:
    -2190            Select: the modified expression.
    -2191        """
    -2192        return _apply_list_builder(
    -2193            *expressions,
    -2194            instance=self,
    -2195            arg="expressions",
    -2196            append=append,
    -2197            dialect=dialect,
    -2198            copy=copy,
    -2199            **opts,
    -2200        )
    -2201
    -2202    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2203        """
    -2204        Append to or set the LATERAL expressions.
    -2205
    -2206        Example:
    -2207            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    -2208            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    -2209
    -2210        Args:
    -2211            *expressions (str | Expression): the SQL code strings to parse.
    -2212                If an `Expression` instance is passed, it will be used as-is.
    -2213            append (bool): if `True`, add to any existing expressions.
    -2214                Otherwise, this resets the expressions.
    -2215            dialect (str): the dialect used to parse the input expressions.
    -2216            copy (bool): if `False`, modify this expression instance in-place.
    -2217            opts (kwargs): other options to use to parse the input expressions.
    -2218
    -2219        Returns:
    -2220            Select: the modified expression.
    -2221        """
    -2222        return _apply_list_builder(
    -2223            *expressions,
    -2224            instance=self,
    -2225            arg="laterals",
    -2226            append=append,
    -2227            into=Lateral,
    -2228            prefix="LATERAL VIEW",
    -2229            dialect=dialect,
    -2230            copy=copy,
    -2231            **opts,
    -2232        )
    -2233
    -2234    def join(
    -2235        self,
    -2236        expression,
    -2237        on=None,
    -2238        using=None,
    -2239        append=True,
    -2240        join_type=None,
    -2241        join_alias=None,
    -2242        dialect=None,
    -2243        copy=True,
    -2244        **opts,
    -2245    ) -> Select:
    -2246        """
    -2247        Append to or set the JOIN expressions.
    -2248
    -2249        Example:
    -2250            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    -2251            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    -2252
    -2253            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    -2254            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    +            
    1931class Select(Subqueryable):
    +1932    arg_types = {
    +1933        "with": False,
    +1934        "expressions": False,
    +1935        "hint": False,
    +1936        "distinct": False,
    +1937        "into": False,
    +1938        "from": False,
    +1939        **QUERY_MODIFIERS,
    +1940    }
    +1941
    +1942    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +1943        """
    +1944        Set the FROM expression.
    +1945
    +1946        Example:
    +1947            >>> Select().from_("tbl").select("x").sql()
    +1948            'SELECT x FROM tbl'
    +1949
    +1950        Args:
    +1951            *expressions (str | Expression): the SQL code strings to parse.
    +1952                If a `From` instance is passed, this is used as-is.
    +1953                If another `Expression` instance is passed, it will be wrapped in a `From`.
    +1954            append (bool): if `True`, add to any existing expressions.
    +1955                Otherwise, this flattens all the `From` expression into a single expression.
    +1956            dialect (str): the dialect used to parse the input expression.
    +1957            copy (bool): if `False`, modify this expression instance in-place.
    +1958            opts (kwargs): other options to use to parse the input expressions.
    +1959
    +1960        Returns:
    +1961            Select: the modified expression.
    +1962        """
    +1963        return _apply_child_list_builder(
    +1964            *expressions,
    +1965            instance=self,
    +1966            arg="from",
    +1967            append=append,
    +1968            copy=copy,
    +1969            prefix="FROM",
    +1970            into=From,
    +1971            dialect=dialect,
    +1972            **opts,
    +1973        )
    +1974
    +1975    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +1976        """
    +1977        Set the GROUP BY expression.
    +1978
    +1979        Example:
    +1980            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    +1981            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    +1982
    +1983        Args:
    +1984            *expressions (str | Expression): the SQL code strings to parse.
    +1985                If a `Group` instance is passed, this is used as-is.
    +1986                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    +1987                If nothing is passed in then a group by is not applied to the expression
    +1988            append (bool): if `True`, add to any existing expressions.
    +1989                Otherwise, this flattens all the `Group` expression into a single expression.
    +1990            dialect (str): the dialect used to parse the input expression.
    +1991            copy (bool): if `False`, modify this expression instance in-place.
    +1992            opts (kwargs): other options to use to parse the input expressions.
    +1993
    +1994        Returns:
    +1995            Select: the modified expression.
    +1996        """
    +1997        if not expressions:
    +1998            return self if not copy else self.copy()
    +1999        return _apply_child_list_builder(
    +2000            *expressions,
    +2001            instance=self,
    +2002            arg="group",
    +2003            append=append,
    +2004            copy=copy,
    +2005            prefix="GROUP BY",
    +2006            into=Group,
    +2007            dialect=dialect,
    +2008            **opts,
    +2009        )
    +2010
    +2011    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2012        """
    +2013        Set the ORDER BY expression.
    +2014
    +2015        Example:
    +2016            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    +2017            'SELECT x FROM tbl ORDER BY x DESC'
    +2018
    +2019        Args:
    +2020            *expressions (str | Expression): the SQL code strings to parse.
    +2021                If a `Group` instance is passed, this is used as-is.
    +2022                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    +2023            append (bool): if `True`, add to any existing expressions.
    +2024                Otherwise, this flattens all the `Order` expression into a single expression.
    +2025            dialect (str): the dialect used to parse the input expression.
    +2026            copy (bool): if `False`, modify this expression instance in-place.
    +2027            opts (kwargs): other options to use to parse the input expressions.
    +2028
    +2029        Returns:
    +2030            Select: the modified expression.
    +2031        """
    +2032        return _apply_child_list_builder(
    +2033            *expressions,
    +2034            instance=self,
    +2035            arg="order",
    +2036            append=append,
    +2037            copy=copy,
    +2038            prefix="ORDER BY",
    +2039            into=Order,
    +2040            dialect=dialect,
    +2041            **opts,
    +2042        )
    +2043
    +2044    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2045        """
    +2046        Set the SORT BY expression.
    +2047
    +2048        Example:
    +2049            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    +2050            'SELECT x FROM tbl SORT BY x DESC'
    +2051
    +2052        Args:
    +2053            *expressions (str | Expression): the SQL code strings to parse.
    +2054                If a `Group` instance is passed, this is used as-is.
    +2055                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    +2056            append (bool): if `True`, add to any existing expressions.
    +2057                Otherwise, this flattens all the `Order` expression into a single expression.
    +2058            dialect (str): the dialect used to parse the input expression.
    +2059            copy (bool): if `False`, modify this expression instance in-place.
    +2060            opts (kwargs): other options to use to parse the input expressions.
    +2061
    +2062        Returns:
    +2063            Select: the modified expression.
    +2064        """
    +2065        return _apply_child_list_builder(
    +2066            *expressions,
    +2067            instance=self,
    +2068            arg="sort",
    +2069            append=append,
    +2070            copy=copy,
    +2071            prefix="SORT BY",
    +2072            into=Sort,
    +2073            dialect=dialect,
    +2074            **opts,
    +2075        )
    +2076
    +2077    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2078        """
    +2079        Set the CLUSTER BY expression.
    +2080
    +2081        Example:
    +2082            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    +2083            'SELECT x FROM tbl CLUSTER BY x DESC'
    +2084
    +2085        Args:
    +2086            *expressions (str | Expression): the SQL code strings to parse.
    +2087                If a `Group` instance is passed, this is used as-is.
    +2088                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    +2089            append (bool): if `True`, add to any existing expressions.
    +2090                Otherwise, this flattens all the `Order` expression into a single expression.
    +2091            dialect (str): the dialect used to parse the input expression.
    +2092            copy (bool): if `False`, modify this expression instance in-place.
    +2093            opts (kwargs): other options to use to parse the input expressions.
    +2094
    +2095        Returns:
    +2096            Select: the modified expression.
    +2097        """
    +2098        return _apply_child_list_builder(
    +2099            *expressions,
    +2100            instance=self,
    +2101            arg="cluster",
    +2102            append=append,
    +2103            copy=copy,
    +2104            prefix="CLUSTER BY",
    +2105            into=Cluster,
    +2106            dialect=dialect,
    +2107            **opts,
    +2108        )
    +2109
    +2110    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2111        """
    +2112        Set the LIMIT expression.
    +2113
    +2114        Example:
    +2115            >>> Select().from_("tbl").select("x").limit(10).sql()
    +2116            'SELECT x FROM tbl LIMIT 10'
    +2117
    +2118        Args:
    +2119            expression (str | int | Expression): the SQL code string to parse.
    +2120                This can also be an integer.
    +2121                If a `Limit` instance is passed, this is used as-is.
    +2122                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +2123            dialect (str): the dialect used to parse the input expression.
    +2124            copy (bool): if `False`, modify this expression instance in-place.
    +2125            opts (kwargs): other options to use to parse the input expressions.
    +2126
    +2127        Returns:
    +2128            Select: the modified expression.
    +2129        """
    +2130        return _apply_builder(
    +2131            expression=expression,
    +2132            instance=self,
    +2133            arg="limit",
    +2134            into=Limit,
    +2135            prefix="LIMIT",
    +2136            dialect=dialect,
    +2137            copy=copy,
    +2138            **opts,
    +2139        )
    +2140
    +2141    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2142        """
    +2143        Set the OFFSET expression.
    +2144
    +2145        Example:
    +2146            >>> Select().from_("tbl").select("x").offset(10).sql()
    +2147            'SELECT x FROM tbl OFFSET 10'
    +2148
    +2149        Args:
    +2150            expression (str | int | Expression): the SQL code string to parse.
    +2151                This can also be an integer.
    +2152                If a `Offset` instance is passed, this is used as-is.
    +2153                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    +2154            dialect (str): the dialect used to parse the input expression.
    +2155            copy (bool): if `False`, modify this expression instance in-place.
    +2156            opts (kwargs): other options to use to parse the input expressions.
    +2157
    +2158        Returns:
    +2159            Select: the modified expression.
    +2160        """
    +2161        return _apply_builder(
    +2162            expression=expression,
    +2163            instance=self,
    +2164            arg="offset",
    +2165            into=Offset,
    +2166            prefix="OFFSET",
    +2167            dialect=dialect,
    +2168            copy=copy,
    +2169            **opts,
    +2170        )
    +2171
    +2172    def select(
    +2173        self,
    +2174        *expressions: str | Expression,
    +2175        append: bool = True,
    +2176        dialect: DialectType = None,
    +2177        copy: bool = True,
    +2178        **opts,
    +2179    ) -> Select:
    +2180        """
    +2181        Append to or set the SELECT expressions.
    +2182
    +2183        Example:
    +2184            >>> Select().select("x", "y").sql()
    +2185            'SELECT x, y'
    +2186
    +2187        Args:
    +2188            *expressions: the SQL code strings to parse.
    +2189                If an `Expression` instance is passed, it will be used as-is.
    +2190            append: if `True`, add to any existing expressions.
    +2191                Otherwise, this resets the expressions.
    +2192            dialect: the dialect used to parse the input expressions.
    +2193            copy: if `False`, modify this expression instance in-place.
    +2194            opts: other options to use to parse the input expressions.
    +2195
    +2196        Returns:
    +2197            Select: the modified expression.
    +2198        """
    +2199        return _apply_list_builder(
    +2200            *expressions,
    +2201            instance=self,
    +2202            arg="expressions",
    +2203            append=append,
    +2204            dialect=dialect,
    +2205            copy=copy,
    +2206            **opts,
    +2207        )
    +2208
    +2209    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2210        """
    +2211        Append to or set the LATERAL expressions.
    +2212
    +2213        Example:
    +2214            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    +2215            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    +2216
    +2217        Args:
    +2218            *expressions (str | Expression): the SQL code strings to parse.
    +2219                If an `Expression` instance is passed, it will be used as-is.
    +2220            append (bool): if `True`, add to any existing expressions.
    +2221                Otherwise, this resets the expressions.
    +2222            dialect (str): the dialect used to parse the input expressions.
    +2223            copy (bool): if `False`, modify this expression instance in-place.
    +2224            opts (kwargs): other options to use to parse the input expressions.
    +2225
    +2226        Returns:
    +2227            Select: the modified expression.
    +2228        """
    +2229        return _apply_list_builder(
    +2230            *expressions,
    +2231            instance=self,
    +2232            arg="laterals",
    +2233            append=append,
    +2234            into=Lateral,
    +2235            prefix="LATERAL VIEW",
    +2236            dialect=dialect,
    +2237            copy=copy,
    +2238            **opts,
    +2239        )
    +2240
    +2241    def join(
    +2242        self,
    +2243        expression,
    +2244        on=None,
    +2245        using=None,
    +2246        append=True,
    +2247        join_type=None,
    +2248        join_alias=None,
    +2249        dialect=None,
    +2250        copy=True,
    +2251        **opts,
    +2252    ) -> Select:
    +2253        """
    +2254        Append to or set the JOIN expressions.
     2255
    -2256            Use `join_type` to change the type of join:
    -2257
    -2258            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    -2259            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    -2260
    -2261        Args:
    -2262            expression (str | Expression): the SQL code string to parse.
    -2263                If an `Expression` instance is passed, it will be used as-is.
    -2264            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    -2265                If an `Expression` instance is passed, it will be used as-is.
    -2266            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    -2267                If an `Expression` instance is passed, it will be used as-is.
    -2268            append (bool): if `True`, add to any existing expressions.
    -2269                Otherwise, this resets the expressions.
    -2270            join_type (str): If set, alter the parsed join type
    -2271            dialect (str): the dialect used to parse the input expressions.
    -2272            copy (bool): if `False`, modify this expression instance in-place.
    -2273            opts (kwargs): other options to use to parse the input expressions.
    -2274
    -2275        Returns:
    -2276            Select: the modified expression.
    -2277        """
    -2278        parse_args = {"dialect": dialect, **opts}
    -2279
    -2280        try:
    -2281            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    -2282        except ParseError:
    -2283            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    -2284
    -2285        join = expression if isinstance(expression, Join) else Join(this=expression)
    +2256        Example:
    +2257            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    +2258            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    +2259
    +2260            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    +2261            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    +2262
    +2263            Use `join_type` to change the type of join:
    +2264
    +2265            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    +2266            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    +2267
    +2268        Args:
    +2269            expression (str | Expression): the SQL code string to parse.
    +2270                If an `Expression` instance is passed, it will be used as-is.
    +2271            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    +2272                If an `Expression` instance is passed, it will be used as-is.
    +2273            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    +2274                If an `Expression` instance is passed, it will be used as-is.
    +2275            append (bool): if `True`, add to any existing expressions.
    +2276                Otherwise, this resets the expressions.
    +2277            join_type (str): If set, alter the parsed join type
    +2278            dialect (str): the dialect used to parse the input expressions.
    +2279            copy (bool): if `False`, modify this expression instance in-place.
    +2280            opts (kwargs): other options to use to parse the input expressions.
    +2281
    +2282        Returns:
    +2283            Select: the modified expression.
    +2284        """
    +2285        parse_args = {"dialect": dialect, **opts}
     2286
    -2287        if isinstance(join.this, Select):
    -2288            join.this.replace(join.this.subquery())
    -2289
    -2290        if join_type:
    -2291            natural: t.Optional[Token]
    -2292            side: t.Optional[Token]
    -2293            kind: t.Optional[Token]
    -2294
    -2295            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    +2287        try:
    +2288            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    +2289        except ParseError:
    +2290            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    +2291
    +2292        join = expression if isinstance(expression, Join) else Join(this=expression)
    +2293
    +2294        if isinstance(join.this, Select):
    +2295            join.this.replace(join.this.subquery())
     2296
    -2297            if natural:
    -2298                join.set("natural", True)
    -2299            if side:
    -2300                join.set("side", side.text)
    -2301            if kind:
    -2302                join.set("kind", kind.text)
    +2297        if join_type:
    +2298            natural: t.Optional[Token]
    +2299            side: t.Optional[Token]
    +2300            kind: t.Optional[Token]
    +2301
    +2302            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
     2303
    -2304        if on:
    -2305            on = and_(*ensure_collection(on), dialect=dialect, **opts)
    -2306            join.set("on", on)
    -2307
    -2308        if using:
    -2309            join = _apply_list_builder(
    -2310                *ensure_collection(using),
    -2311                instance=join,
    -2312                arg="using",
    -2313                append=append,
    -2314                copy=copy,
    -2315                **opts,
    -2316            )
    -2317
    -2318        if join_alias:
    -2319            join.set("this", alias_(join.this, join_alias, table=True))
    -2320        return _apply_list_builder(
    -2321            join,
    -2322            instance=self,
    -2323            arg="joins",
    -2324            append=append,
    -2325            copy=copy,
    -2326            **opts,
    -2327        )
    -2328
    -2329    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2330        """
    -2331        Append to or set the WHERE expressions.
    -2332
    -2333        Example:
    -2334            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    -2335            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    -2336
    -2337        Args:
    -2338            *expressions (str | Expression): the SQL code strings to parse.
    -2339                If an `Expression` instance is passed, it will be used as-is.
    -2340                Multiple expressions are combined with an AND operator.
    -2341            append (bool): if `True`, AND the new expressions to any existing expression.
    -2342                Otherwise, this resets the expression.
    -2343            dialect (str): the dialect used to parse the input expressions.
    -2344            copy (bool): if `False`, modify this expression instance in-place.
    -2345            opts (kwargs): other options to use to parse the input expressions.
    -2346
    -2347        Returns:
    -2348            Select: the modified expression.
    -2349        """
    -2350        return _apply_conjunction_builder(
    -2351            *expressions,
    -2352            instance=self,
    -2353            arg="where",
    -2354            append=append,
    -2355            into=Where,
    -2356            dialect=dialect,
    -2357            copy=copy,
    -2358            **opts,
    -2359        )
    -2360
    -2361    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2362        """
    -2363        Append to or set the HAVING expressions.
    -2364
    -2365        Example:
    -2366            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    -2367            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    -2368
    -2369        Args:
    -2370            *expressions (str | Expression): the SQL code strings to parse.
    -2371                If an `Expression` instance is passed, it will be used as-is.
    -2372                Multiple expressions are combined with an AND operator.
    -2373            append (bool): if `True`, AND the new expressions to any existing expression.
    -2374                Otherwise, this resets the expression.
    -2375            dialect (str): the dialect used to parse the input expressions.
    -2376            copy (bool): if `False`, modify this expression instance in-place.
    -2377            opts (kwargs): other options to use to parse the input expressions.
    -2378
    -2379        Returns:
    -2380            Select: the modified expression.
    -2381        """
    -2382        return _apply_conjunction_builder(
    -2383            *expressions,
    -2384            instance=self,
    -2385            arg="having",
    -2386            append=append,
    -2387            into=Having,
    -2388            dialect=dialect,
    -2389            copy=copy,
    -2390            **opts,
    -2391        )
    -2392
    -2393    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2394        return _apply_list_builder(
    -2395            *expressions,
    -2396            instance=self,
    -2397            arg="windows",
    -2398            append=append,
    -2399            into=Window,
    -2400            dialect=dialect,
    -2401            copy=copy,
    -2402            **opts,
    -2403        )
    -2404
    -2405    def distinct(self, distinct=True, copy=True) -> Select:
    -2406        """
    -2407        Set the OFFSET expression.
    -2408
    -2409        Example:
    -2410            >>> Select().from_("tbl").select("x").distinct().sql()
    -2411            'SELECT DISTINCT x FROM tbl'
    -2412
    -2413        Args:
    -2414            distinct (bool): whether the Select should be distinct
    -2415            copy (bool): if `False`, modify this expression instance in-place.
    -2416
    -2417        Returns:
    -2418            Select: the modified expression.
    -2419        """
    -2420        instance = _maybe_copy(self, copy)
    -2421        instance.set("distinct", Distinct() if distinct else None)
    -2422        return instance
    +2304            if natural:
    +2305                join.set("natural", True)
    +2306            if side:
    +2307                join.set("side", side.text)
    +2308            if kind:
    +2309                join.set("kind", kind.text)
    +2310
    +2311        if on:
    +2312            on = and_(*ensure_collection(on), dialect=dialect, **opts)
    +2313            join.set("on", on)
    +2314
    +2315        if using:
    +2316            join = _apply_list_builder(
    +2317                *ensure_collection(using),
    +2318                instance=join,
    +2319                arg="using",
    +2320                append=append,
    +2321                copy=copy,
    +2322                **opts,
    +2323            )
    +2324
    +2325        if join_alias:
    +2326            join.set("this", alias_(join.this, join_alias, table=True))
    +2327        return _apply_list_builder(
    +2328            join,
    +2329            instance=self,
    +2330            arg="joins",
    +2331            append=append,
    +2332            copy=copy,
    +2333            **opts,
    +2334        )
    +2335
    +2336    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2337        """
    +2338        Append to or set the WHERE expressions.
    +2339
    +2340        Example:
    +2341            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    +2342            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    +2343
    +2344        Args:
    +2345            *expressions (str | Expression): the SQL code strings to parse.
    +2346                If an `Expression` instance is passed, it will be used as-is.
    +2347                Multiple expressions are combined with an AND operator.
    +2348            append (bool): if `True`, AND the new expressions to any existing expression.
    +2349                Otherwise, this resets the expression.
    +2350            dialect (str): the dialect used to parse the input expressions.
    +2351            copy (bool): if `False`, modify this expression instance in-place.
    +2352            opts (kwargs): other options to use to parse the input expressions.
    +2353
    +2354        Returns:
    +2355            Select: the modified expression.
    +2356        """
    +2357        return _apply_conjunction_builder(
    +2358            *expressions,
    +2359            instance=self,
    +2360            arg="where",
    +2361            append=append,
    +2362            into=Where,
    +2363            dialect=dialect,
    +2364            copy=copy,
    +2365            **opts,
    +2366        )
    +2367
    +2368    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2369        """
    +2370        Append to or set the HAVING expressions.
    +2371
    +2372        Example:
    +2373            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    +2374            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    +2375
    +2376        Args:
    +2377            *expressions (str | Expression): the SQL code strings to parse.
    +2378                If an `Expression` instance is passed, it will be used as-is.
    +2379                Multiple expressions are combined with an AND operator.
    +2380            append (bool): if `True`, AND the new expressions to any existing expression.
    +2381                Otherwise, this resets the expression.
    +2382            dialect (str): the dialect used to parse the input expressions.
    +2383            copy (bool): if `False`, modify this expression instance in-place.
    +2384            opts (kwargs): other options to use to parse the input expressions.
    +2385
    +2386        Returns:
    +2387            Select: the modified expression.
    +2388        """
    +2389        return _apply_conjunction_builder(
    +2390            *expressions,
    +2391            instance=self,
    +2392            arg="having",
    +2393            append=append,
    +2394            into=Having,
    +2395            dialect=dialect,
    +2396            copy=copy,
    +2397            **opts,
    +2398        )
    +2399
    +2400    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2401        return _apply_list_builder(
    +2402            *expressions,
    +2403            instance=self,
    +2404            arg="windows",
    +2405            append=append,
    +2406            into=Window,
    +2407            dialect=dialect,
    +2408            copy=copy,
    +2409            **opts,
    +2410        )
    +2411
    +2412    def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2413        return _apply_conjunction_builder(
    +2414            *expressions,
    +2415            instance=self,
    +2416            arg="qualify",
    +2417            append=append,
    +2418            into=Qualify,
    +2419            dialect=dialect,
    +2420            copy=copy,
    +2421            **opts,
    +2422        )
     2423
    -2424    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    +2424    def distinct(self, distinct=True, copy=True) -> Select:
     2425        """
    -2426        Convert this expression to a CREATE TABLE AS statement.
    +2426        Set the OFFSET expression.
     2427
     2428        Example:
    -2429            >>> Select().select("*").from_("tbl").ctas("x").sql()
    -2430            'CREATE TABLE x AS SELECT * FROM tbl'
    +2429            >>> Select().from_("tbl").select("x").distinct().sql()
    +2430            'SELECT DISTINCT x FROM tbl'
     2431
     2432        Args:
    -2433            table (str | Expression): the SQL code string to parse as the table name.
    -2434                If another `Expression` instance is passed, it will be used as-is.
    -2435            properties (dict): an optional mapping of table properties
    -2436            dialect (str): the dialect used to parse the input table.
    -2437            copy (bool): if `False`, modify this expression instance in-place.
    -2438            opts (kwargs): other options to use to parse the input table.
    -2439
    -2440        Returns:
    -2441            Create: the CREATE TABLE AS expression
    -2442        """
    -2443        instance = _maybe_copy(self, copy)
    -2444        table_expression = maybe_parse(
    -2445            table,
    -2446            into=Table,
    -2447            dialect=dialect,
    -2448            **opts,
    -2449        )
    -2450        properties_expression = None
    -2451        if properties:
    -2452            properties_expression = Properties.from_dict(properties)
    -2453
    -2454        return Create(
    -2455            this=table_expression,
    -2456            kind="table",
    -2457            expression=instance,
    -2458            properties=properties_expression,
    -2459        )
    -2460
    -2461    def lock(self, update: bool = True, copy: bool = True) -> Select:
    -2462        """
    -2463        Set the locking read mode for this expression.
    -2464
    -2465        Examples:
    -2466            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    -2467            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    -2468
    -2469            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    -2470            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    -2471
    -2472        Args:
    -2473            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    -2474            copy: if `False`, modify this expression instance in-place.
    -2475
    -2476        Returns:
    -2477            The modified expression.
    -2478        """
    +2433            distinct (bool): whether the Select should be distinct
    +2434            copy (bool): if `False`, modify this expression instance in-place.
    +2435
    +2436        Returns:
    +2437            Select: the modified expression.
    +2438        """
    +2439        instance = _maybe_copy(self, copy)
    +2440        instance.set("distinct", Distinct() if distinct else None)
    +2441        return instance
    +2442
    +2443    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    +2444        """
    +2445        Convert this expression to a CREATE TABLE AS statement.
    +2446
    +2447        Example:
    +2448            >>> Select().select("*").from_("tbl").ctas("x").sql()
    +2449            'CREATE TABLE x AS SELECT * FROM tbl'
    +2450
    +2451        Args:
    +2452            table (str | Expression): the SQL code string to parse as the table name.
    +2453                If another `Expression` instance is passed, it will be used as-is.
    +2454            properties (dict): an optional mapping of table properties
    +2455            dialect (str): the dialect used to parse the input table.
    +2456            copy (bool): if `False`, modify this expression instance in-place.
    +2457            opts (kwargs): other options to use to parse the input table.
    +2458
    +2459        Returns:
    +2460            Create: the CREATE TABLE AS expression
    +2461        """
    +2462        instance = _maybe_copy(self, copy)
    +2463        table_expression = maybe_parse(
    +2464            table,
    +2465            into=Table,
    +2466            dialect=dialect,
    +2467            **opts,
    +2468        )
    +2469        properties_expression = None
    +2470        if properties:
    +2471            properties_expression = Properties.from_dict(properties)
    +2472
    +2473        return Create(
    +2474            this=table_expression,
    +2475            kind="table",
    +2476            expression=instance,
    +2477            properties=properties_expression,
    +2478        )
     2479
    -2480        inst = _maybe_copy(self, copy)
    -2481        inst.set("lock", Lock(update=update))
    -2482
    -2483        return inst
    -2484
    -2485    @property
    -2486    def named_selects(self) -> t.List[str]:
    -2487        return [e.output_name for e in self.expressions if e.alias_or_name]
    -2488
    -2489    @property
    -2490    def is_star(self) -> bool:
    -2491        return any(expression.is_star for expression in self.expressions)
    -2492
    -2493    @property
    -2494    def selects(self) -> t.List[Expression]:
    -2495        return self.expressions
    +2480    def lock(self, update: bool = True, copy: bool = True) -> Select:
    +2481        """
    +2482        Set the locking read mode for this expression.
    +2483
    +2484        Examples:
    +2485            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    +2486            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    +2487
    +2488            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    +2489            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    +2490
    +2491        Args:
    +2492            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    +2493            copy: if `False`, modify this expression instance in-place.
    +2494
    +2495        Returns:
    +2496            The modified expression.
    +2497        """
    +2498
    +2499        inst = _maybe_copy(self, copy)
    +2500        inst.set("lock", Lock(update=update))
    +2501
    +2502        return inst
    +2503
    +2504    @property
    +2505    def named_selects(self) -> t.List[str]:
    +2506        return [e.output_name for e in self.expressions if e.alias_or_name]
    +2507
    +2508    @property
    +2509    def is_star(self) -> bool:
    +2510        return any(expression.is_star for expression in self.expressions)
    +2511
    +2512    @property
    +2513    def selects(self) -> t.List[Expression]:
    +2514        return self.expressions
     
    @@ -21003,38 +21120,38 @@ Otherwise, this resets the expressions.
    -
    1935    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -1936        """
    -1937        Set the FROM expression.
    -1938
    -1939        Example:
    -1940            >>> Select().from_("tbl").select("x").sql()
    -1941            'SELECT x FROM tbl'
    -1942
    -1943        Args:
    -1944            *expressions (str | Expression): the SQL code strings to parse.
    -1945                If a `From` instance is passed, this is used as-is.
    -1946                If another `Expression` instance is passed, it will be wrapped in a `From`.
    -1947            append (bool): if `True`, add to any existing expressions.
    -1948                Otherwise, this flattens all the `From` expression into a single expression.
    -1949            dialect (str): the dialect used to parse the input expression.
    -1950            copy (bool): if `False`, modify this expression instance in-place.
    -1951            opts (kwargs): other options to use to parse the input expressions.
    -1952
    -1953        Returns:
    -1954            Select: the modified expression.
    -1955        """
    -1956        return _apply_child_list_builder(
    -1957            *expressions,
    -1958            instance=self,
    -1959            arg="from",
    -1960            append=append,
    -1961            copy=copy,
    -1962            prefix="FROM",
    -1963            into=From,
    -1964            dialect=dialect,
    -1965            **opts,
    -1966        )
    +            
    1942    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +1943        """
    +1944        Set the FROM expression.
    +1945
    +1946        Example:
    +1947            >>> Select().from_("tbl").select("x").sql()
    +1948            'SELECT x FROM tbl'
    +1949
    +1950        Args:
    +1951            *expressions (str | Expression): the SQL code strings to parse.
    +1952                If a `From` instance is passed, this is used as-is.
    +1953                If another `Expression` instance is passed, it will be wrapped in a `From`.
    +1954            append (bool): if `True`, add to any existing expressions.
    +1955                Otherwise, this flattens all the `From` expression into a single expression.
    +1956            dialect (str): the dialect used to parse the input expression.
    +1957            copy (bool): if `False`, modify this expression instance in-place.
    +1958            opts (kwargs): other options to use to parse the input expressions.
    +1959
    +1960        Returns:
    +1961            Select: the modified expression.
    +1962        """
    +1963        return _apply_child_list_builder(
    +1964            *expressions,
    +1965            instance=self,
    +1966            arg="from",
    +1967            append=append,
    +1968            copy=copy,
    +1969            prefix="FROM",
    +1970            into=From,
    +1971            dialect=dialect,
    +1972            **opts,
    +1973        )
     
    @@ -21083,41 +21200,41 @@ Otherwise, this flattens all the From expressio
    -
    1968    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -1969        """
    -1970        Set the GROUP BY expression.
    -1971
    -1972        Example:
    -1973            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    -1974            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    -1975
    -1976        Args:
    -1977            *expressions (str | Expression): the SQL code strings to parse.
    -1978                If a `Group` instance is passed, this is used as-is.
    -1979                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    -1980                If nothing is passed in then a group by is not applied to the expression
    -1981            append (bool): if `True`, add to any existing expressions.
    -1982                Otherwise, this flattens all the `Group` expression into a single expression.
    -1983            dialect (str): the dialect used to parse the input expression.
    -1984            copy (bool): if `False`, modify this expression instance in-place.
    -1985            opts (kwargs): other options to use to parse the input expressions.
    -1986
    -1987        Returns:
    -1988            Select: the modified expression.
    -1989        """
    -1990        if not expressions:
    -1991            return self if not copy else self.copy()
    -1992        return _apply_child_list_builder(
    -1993            *expressions,
    -1994            instance=self,
    -1995            arg="group",
    -1996            append=append,
    -1997            copy=copy,
    -1998            prefix="GROUP BY",
    -1999            into=Group,
    -2000            dialect=dialect,
    -2001            **opts,
    -2002        )
    +            
    1975    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +1976        """
    +1977        Set the GROUP BY expression.
    +1978
    +1979        Example:
    +1980            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    +1981            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    +1982
    +1983        Args:
    +1984            *expressions (str | Expression): the SQL code strings to parse.
    +1985                If a `Group` instance is passed, this is used as-is.
    +1986                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    +1987                If nothing is passed in then a group by is not applied to the expression
    +1988            append (bool): if `True`, add to any existing expressions.
    +1989                Otherwise, this flattens all the `Group` expression into a single expression.
    +1990            dialect (str): the dialect used to parse the input expression.
    +1991            copy (bool): if `False`, modify this expression instance in-place.
    +1992            opts (kwargs): other options to use to parse the input expressions.
    +1993
    +1994        Returns:
    +1995            Select: the modified expression.
    +1996        """
    +1997        if not expressions:
    +1998            return self if not copy else self.copy()
    +1999        return _apply_child_list_builder(
    +2000            *expressions,
    +2001            instance=self,
    +2002            arg="group",
    +2003            append=append,
    +2004            copy=copy,
    +2005            prefix="GROUP BY",
    +2006            into=Group,
    +2007            dialect=dialect,
    +2008            **opts,
    +2009        )
     
    @@ -21167,38 +21284,38 @@ Otherwise, this flattens all the Group express
    -
    2004    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2005        """
    -2006        Set the ORDER BY expression.
    -2007
    -2008        Example:
    -2009            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    -2010            'SELECT x FROM tbl ORDER BY x DESC'
    -2011
    -2012        Args:
    -2013            *expressions (str | Expression): the SQL code strings to parse.
    -2014                If a `Group` instance is passed, this is used as-is.
    -2015                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    -2016            append (bool): if `True`, add to any existing expressions.
    -2017                Otherwise, this flattens all the `Order` expression into a single expression.
    -2018            dialect (str): the dialect used to parse the input expression.
    -2019            copy (bool): if `False`, modify this expression instance in-place.
    -2020            opts (kwargs): other options to use to parse the input expressions.
    -2021
    -2022        Returns:
    -2023            Select: the modified expression.
    -2024        """
    -2025        return _apply_child_list_builder(
    -2026            *expressions,
    -2027            instance=self,
    -2028            arg="order",
    -2029            append=append,
    -2030            copy=copy,
    -2031            prefix="ORDER BY",
    -2032            into=Order,
    -2033            dialect=dialect,
    -2034            **opts,
    -2035        )
    +            
    2011    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2012        """
    +2013        Set the ORDER BY expression.
    +2014
    +2015        Example:
    +2016            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    +2017            'SELECT x FROM tbl ORDER BY x DESC'
    +2018
    +2019        Args:
    +2020            *expressions (str | Expression): the SQL code strings to parse.
    +2021                If a `Group` instance is passed, this is used as-is.
    +2022                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    +2023            append (bool): if `True`, add to any existing expressions.
    +2024                Otherwise, this flattens all the `Order` expression into a single expression.
    +2025            dialect (str): the dialect used to parse the input expression.
    +2026            copy (bool): if `False`, modify this expression instance in-place.
    +2027            opts (kwargs): other options to use to parse the input expressions.
    +2028
    +2029        Returns:
    +2030            Select: the modified expression.
    +2031        """
    +2032        return _apply_child_list_builder(
    +2033            *expressions,
    +2034            instance=self,
    +2035            arg="order",
    +2036            append=append,
    +2037            copy=copy,
    +2038            prefix="ORDER BY",
    +2039            into=Order,
    +2040            dialect=dialect,
    +2041            **opts,
    +2042        )
     
    @@ -21247,38 +21364,38 @@ Otherwise, this flattens all the Order express
    -
    2037    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2038        """
    -2039        Set the SORT BY expression.
    -2040
    -2041        Example:
    -2042            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    -2043            'SELECT x FROM tbl SORT BY x DESC'
    -2044
    -2045        Args:
    -2046            *expressions (str | Expression): the SQL code strings to parse.
    -2047                If a `Group` instance is passed, this is used as-is.
    -2048                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    -2049            append (bool): if `True`, add to any existing expressions.
    -2050                Otherwise, this flattens all the `Order` expression into a single expression.
    -2051            dialect (str): the dialect used to parse the input expression.
    -2052            copy (bool): if `False`, modify this expression instance in-place.
    -2053            opts (kwargs): other options to use to parse the input expressions.
    -2054
    -2055        Returns:
    -2056            Select: the modified expression.
    -2057        """
    -2058        return _apply_child_list_builder(
    -2059            *expressions,
    -2060            instance=self,
    -2061            arg="sort",
    -2062            append=append,
    -2063            copy=copy,
    -2064            prefix="SORT BY",
    -2065            into=Sort,
    -2066            dialect=dialect,
    -2067            **opts,
    -2068        )
    +            
    2044    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2045        """
    +2046        Set the SORT BY expression.
    +2047
    +2048        Example:
    +2049            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    +2050            'SELECT x FROM tbl SORT BY x DESC'
    +2051
    +2052        Args:
    +2053            *expressions (str | Expression): the SQL code strings to parse.
    +2054                If a `Group` instance is passed, this is used as-is.
    +2055                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    +2056            append (bool): if `True`, add to any existing expressions.
    +2057                Otherwise, this flattens all the `Order` expression into a single expression.
    +2058            dialect (str): the dialect used to parse the input expression.
    +2059            copy (bool): if `False`, modify this expression instance in-place.
    +2060            opts (kwargs): other options to use to parse the input expressions.
    +2061
    +2062        Returns:
    +2063            Select: the modified expression.
    +2064        """
    +2065        return _apply_child_list_builder(
    +2066            *expressions,
    +2067            instance=self,
    +2068            arg="sort",
    +2069            append=append,
    +2070            copy=copy,
    +2071            prefix="SORT BY",
    +2072            into=Sort,
    +2073            dialect=dialect,
    +2074            **opts,
    +2075        )
     
    @@ -21327,38 +21444,38 @@ Otherwise, this flattens all the Order express
    -
    2070    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2071        """
    -2072        Set the CLUSTER BY expression.
    -2073
    -2074        Example:
    -2075            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    -2076            'SELECT x FROM tbl CLUSTER BY x DESC'
    -2077
    -2078        Args:
    -2079            *expressions (str | Expression): the SQL code strings to parse.
    -2080                If a `Group` instance is passed, this is used as-is.
    -2081                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    -2082            append (bool): if `True`, add to any existing expressions.
    -2083                Otherwise, this flattens all the `Order` expression into a single expression.
    -2084            dialect (str): the dialect used to parse the input expression.
    -2085            copy (bool): if `False`, modify this expression instance in-place.
    -2086            opts (kwargs): other options to use to parse the input expressions.
    -2087
    -2088        Returns:
    -2089            Select: the modified expression.
    -2090        """
    -2091        return _apply_child_list_builder(
    -2092            *expressions,
    -2093            instance=self,
    -2094            arg="cluster",
    -2095            append=append,
    -2096            copy=copy,
    -2097            prefix="CLUSTER BY",
    -2098            into=Cluster,
    -2099            dialect=dialect,
    -2100            **opts,
    -2101        )
    +            
    2077    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2078        """
    +2079        Set the CLUSTER BY expression.
    +2080
    +2081        Example:
    +2082            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    +2083            'SELECT x FROM tbl CLUSTER BY x DESC'
    +2084
    +2085        Args:
    +2086            *expressions (str | Expression): the SQL code strings to parse.
    +2087                If a `Group` instance is passed, this is used as-is.
    +2088                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    +2089            append (bool): if `True`, add to any existing expressions.
    +2090                Otherwise, this flattens all the `Order` expression into a single expression.
    +2091            dialect (str): the dialect used to parse the input expression.
    +2092            copy (bool): if `False`, modify this expression instance in-place.
    +2093            opts (kwargs): other options to use to parse the input expressions.
    +2094
    +2095        Returns:
    +2096            Select: the modified expression.
    +2097        """
    +2098        return _apply_child_list_builder(
    +2099            *expressions,
    +2100            instance=self,
    +2101            arg="cluster",
    +2102            append=append,
    +2103            copy=copy,
    +2104            prefix="CLUSTER BY",
    +2105            into=Cluster,
    +2106            dialect=dialect,
    +2107            **opts,
    +2108        )
     
    @@ -21407,36 +21524,36 @@ Otherwise, this flattens all the Order express
    -
    2103    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2104        """
    -2105        Set the LIMIT expression.
    -2106
    -2107        Example:
    -2108            >>> Select().from_("tbl").select("x").limit(10).sql()
    -2109            'SELECT x FROM tbl LIMIT 10'
    -2110
    -2111        Args:
    -2112            expression (str | int | Expression): the SQL code string to parse.
    -2113                This can also be an integer.
    -2114                If a `Limit` instance is passed, this is used as-is.
    -2115                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -2116            dialect (str): the dialect used to parse the input expression.
    -2117            copy (bool): if `False`, modify this expression instance in-place.
    -2118            opts (kwargs): other options to use to parse the input expressions.
    -2119
    -2120        Returns:
    -2121            Select: the modified expression.
    -2122        """
    -2123        return _apply_builder(
    -2124            expression=expression,
    -2125            instance=self,
    -2126            arg="limit",
    -2127            into=Limit,
    -2128            prefix="LIMIT",
    -2129            dialect=dialect,
    -2130            copy=copy,
    -2131            **opts,
    -2132        )
    +            
    2110    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2111        """
    +2112        Set the LIMIT expression.
    +2113
    +2114        Example:
    +2115            >>> Select().from_("tbl").select("x").limit(10).sql()
    +2116            'SELECT x FROM tbl LIMIT 10'
    +2117
    +2118        Args:
    +2119            expression (str | int | Expression): the SQL code string to parse.
    +2120                This can also be an integer.
    +2121                If a `Limit` instance is passed, this is used as-is.
    +2122                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +2123            dialect (str): the dialect used to parse the input expression.
    +2124            copy (bool): if `False`, modify this expression instance in-place.
    +2125            opts (kwargs): other options to use to parse the input expressions.
    +2126
    +2127        Returns:
    +2128            Select: the modified expression.
    +2129        """
    +2130        return _apply_builder(
    +2131            expression=expression,
    +2132            instance=self,
    +2133            arg="limit",
    +2134            into=Limit,
    +2135            prefix="LIMIT",
    +2136            dialect=dialect,
    +2137            copy=copy,
    +2138            **opts,
    +2139        )
     
    @@ -21484,36 +21601,36 @@ If another Expression instance is passed,
    -
    2134    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2135        """
    -2136        Set the OFFSET expression.
    -2137
    -2138        Example:
    -2139            >>> Select().from_("tbl").select("x").offset(10).sql()
    -2140            'SELECT x FROM tbl OFFSET 10'
    -2141
    -2142        Args:
    -2143            expression (str | int | Expression): the SQL code string to parse.
    -2144                This can also be an integer.
    -2145                If a `Offset` instance is passed, this is used as-is.
    -2146                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    -2147            dialect (str): the dialect used to parse the input expression.
    -2148            copy (bool): if `False`, modify this expression instance in-place.
    -2149            opts (kwargs): other options to use to parse the input expressions.
    -2150
    -2151        Returns:
    -2152            Select: the modified expression.
    -2153        """
    -2154        return _apply_builder(
    -2155            expression=expression,
    -2156            instance=self,
    -2157            arg="offset",
    -2158            into=Offset,
    -2159            prefix="OFFSET",
    -2160            dialect=dialect,
    -2161            copy=copy,
    -2162            **opts,
    -2163        )
    +            
    2141    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2142        """
    +2143        Set the OFFSET expression.
    +2144
    +2145        Example:
    +2146            >>> Select().from_("tbl").select("x").offset(10).sql()
    +2147            'SELECT x FROM tbl OFFSET 10'
    +2148
    +2149        Args:
    +2150            expression (str | int | Expression): the SQL code string to parse.
    +2151                This can also be an integer.
    +2152                If a `Offset` instance is passed, this is used as-is.
    +2153                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    +2154            dialect (str): the dialect used to parse the input expression.
    +2155            copy (bool): if `False`, modify this expression instance in-place.
    +2156            opts (kwargs): other options to use to parse the input expressions.
    +2157
    +2158        Returns:
    +2159            Select: the modified expression.
    +2160        """
    +2161        return _apply_builder(
    +2162            expression=expression,
    +2163            instance=self,
    +2164            arg="offset",
    +2165            into=Offset,
    +2166            prefix="OFFSET",
    +2167            dialect=dialect,
    +2168            copy=copy,
    +2169            **opts,
    +2170        )
     
    @@ -21561,42 +21678,42 @@ If another Expression instance is passed,
    -
    2165    def select(
    -2166        self,
    -2167        *expressions: str | Expression,
    -2168        append: bool = True,
    -2169        dialect: DialectType = None,
    -2170        copy: bool = True,
    -2171        **opts,
    -2172    ) -> Select:
    -2173        """
    -2174        Append to or set the SELECT expressions.
    -2175
    -2176        Example:
    -2177            >>> Select().select("x", "y").sql()
    -2178            'SELECT x, y'
    -2179
    -2180        Args:
    -2181            *expressions: the SQL code strings to parse.
    -2182                If an `Expression` instance is passed, it will be used as-is.
    -2183            append: if `True`, add to any existing expressions.
    -2184                Otherwise, this resets the expressions.
    -2185            dialect: the dialect used to parse the input expressions.
    -2186            copy: if `False`, modify this expression instance in-place.
    -2187            opts: other options to use to parse the input expressions.
    -2188
    -2189        Returns:
    -2190            Select: the modified expression.
    -2191        """
    -2192        return _apply_list_builder(
    -2193            *expressions,
    -2194            instance=self,
    -2195            arg="expressions",
    -2196            append=append,
    -2197            dialect=dialect,
    -2198            copy=copy,
    -2199            **opts,
    -2200        )
    +            
    2172    def select(
    +2173        self,
    +2174        *expressions: str | Expression,
    +2175        append: bool = True,
    +2176        dialect: DialectType = None,
    +2177        copy: bool = True,
    +2178        **opts,
    +2179    ) -> Select:
    +2180        """
    +2181        Append to or set the SELECT expressions.
    +2182
    +2183        Example:
    +2184            >>> Select().select("x", "y").sql()
    +2185            'SELECT x, y'
    +2186
    +2187        Args:
    +2188            *expressions: the SQL code strings to parse.
    +2189                If an `Expression` instance is passed, it will be used as-is.
    +2190            append: if `True`, add to any existing expressions.
    +2191                Otherwise, this resets the expressions.
    +2192            dialect: the dialect used to parse the input expressions.
    +2193            copy: if `False`, modify this expression instance in-place.
    +2194            opts: other options to use to parse the input expressions.
    +2195
    +2196        Returns:
    +2197            Select: the modified expression.
    +2198        """
    +2199        return _apply_list_builder(
    +2200            *expressions,
    +2201            instance=self,
    +2202            arg="expressions",
    +2203            append=append,
    +2204            dialect=dialect,
    +2205            copy=copy,
    +2206            **opts,
    +2207        )
     
    @@ -21644,37 +21761,37 @@ Otherwise, this resets the expressions.
    -
    2202    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2203        """
    -2204        Append to or set the LATERAL expressions.
    -2205
    -2206        Example:
    -2207            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    -2208            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    -2209
    -2210        Args:
    -2211            *expressions (str | Expression): the SQL code strings to parse.
    -2212                If an `Expression` instance is passed, it will be used as-is.
    -2213            append (bool): if `True`, add to any existing expressions.
    -2214                Otherwise, this resets the expressions.
    -2215            dialect (str): the dialect used to parse the input expressions.
    -2216            copy (bool): if `False`, modify this expression instance in-place.
    -2217            opts (kwargs): other options to use to parse the input expressions.
    -2218
    -2219        Returns:
    -2220            Select: the modified expression.
    -2221        """
    -2222        return _apply_list_builder(
    -2223            *expressions,
    -2224            instance=self,
    -2225            arg="laterals",
    -2226            append=append,
    -2227            into=Lateral,
    -2228            prefix="LATERAL VIEW",
    -2229            dialect=dialect,
    -2230            copy=copy,
    -2231            **opts,
    -2232        )
    +            
    2209    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2210        """
    +2211        Append to or set the LATERAL expressions.
    +2212
    +2213        Example:
    +2214            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    +2215            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    +2216
    +2217        Args:
    +2218            *expressions (str | Expression): the SQL code strings to parse.
    +2219                If an `Expression` instance is passed, it will be used as-is.
    +2220            append (bool): if `True`, add to any existing expressions.
    +2221                Otherwise, this resets the expressions.
    +2222            dialect (str): the dialect used to parse the input expressions.
    +2223            copy (bool): if `False`, modify this expression instance in-place.
    +2224            opts (kwargs): other options to use to parse the input expressions.
    +2225
    +2226        Returns:
    +2227            Select: the modified expression.
    +2228        """
    +2229        return _apply_list_builder(
    +2230            *expressions,
    +2231            instance=self,
    +2232            arg="laterals",
    +2233            append=append,
    +2234            into=Lateral,
    +2235            prefix="LATERAL VIEW",
    +2236            dialect=dialect,
    +2237            copy=copy,
    +2238            **opts,
    +2239        )
     
    @@ -21722,100 +21839,100 @@ Otherwise, this resets the expressions.
    -
    2234    def join(
    -2235        self,
    -2236        expression,
    -2237        on=None,
    -2238        using=None,
    -2239        append=True,
    -2240        join_type=None,
    -2241        join_alias=None,
    -2242        dialect=None,
    -2243        copy=True,
    -2244        **opts,
    -2245    ) -> Select:
    -2246        """
    -2247        Append to or set the JOIN expressions.
    -2248
    -2249        Example:
    -2250            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    -2251            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    -2252
    -2253            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    -2254            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    +            
    2241    def join(
    +2242        self,
    +2243        expression,
    +2244        on=None,
    +2245        using=None,
    +2246        append=True,
    +2247        join_type=None,
    +2248        join_alias=None,
    +2249        dialect=None,
    +2250        copy=True,
    +2251        **opts,
    +2252    ) -> Select:
    +2253        """
    +2254        Append to or set the JOIN expressions.
     2255
    -2256            Use `join_type` to change the type of join:
    -2257
    -2258            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    -2259            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    -2260
    -2261        Args:
    -2262            expression (str | Expression): the SQL code string to parse.
    -2263                If an `Expression` instance is passed, it will be used as-is.
    -2264            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    -2265                If an `Expression` instance is passed, it will be used as-is.
    -2266            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    -2267                If an `Expression` instance is passed, it will be used as-is.
    -2268            append (bool): if `True`, add to any existing expressions.
    -2269                Otherwise, this resets the expressions.
    -2270            join_type (str): If set, alter the parsed join type
    -2271            dialect (str): the dialect used to parse the input expressions.
    -2272            copy (bool): if `False`, modify this expression instance in-place.
    -2273            opts (kwargs): other options to use to parse the input expressions.
    -2274
    -2275        Returns:
    -2276            Select: the modified expression.
    -2277        """
    -2278        parse_args = {"dialect": dialect, **opts}
    -2279
    -2280        try:
    -2281            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    -2282        except ParseError:
    -2283            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    -2284
    -2285        join = expression if isinstance(expression, Join) else Join(this=expression)
    +2256        Example:
    +2257            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    +2258            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    +2259
    +2260            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    +2261            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    +2262
    +2263            Use `join_type` to change the type of join:
    +2264
    +2265            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    +2266            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    +2267
    +2268        Args:
    +2269            expression (str | Expression): the SQL code string to parse.
    +2270                If an `Expression` instance is passed, it will be used as-is.
    +2271            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    +2272                If an `Expression` instance is passed, it will be used as-is.
    +2273            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    +2274                If an `Expression` instance is passed, it will be used as-is.
    +2275            append (bool): if `True`, add to any existing expressions.
    +2276                Otherwise, this resets the expressions.
    +2277            join_type (str): If set, alter the parsed join type
    +2278            dialect (str): the dialect used to parse the input expressions.
    +2279            copy (bool): if `False`, modify this expression instance in-place.
    +2280            opts (kwargs): other options to use to parse the input expressions.
    +2281
    +2282        Returns:
    +2283            Select: the modified expression.
    +2284        """
    +2285        parse_args = {"dialect": dialect, **opts}
     2286
    -2287        if isinstance(join.this, Select):
    -2288            join.this.replace(join.this.subquery())
    -2289
    -2290        if join_type:
    -2291            natural: t.Optional[Token]
    -2292            side: t.Optional[Token]
    -2293            kind: t.Optional[Token]
    -2294
    -2295            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    +2287        try:
    +2288            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    +2289        except ParseError:
    +2290            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    +2291
    +2292        join = expression if isinstance(expression, Join) else Join(this=expression)
    +2293
    +2294        if isinstance(join.this, Select):
    +2295            join.this.replace(join.this.subquery())
     2296
    -2297            if natural:
    -2298                join.set("natural", True)
    -2299            if side:
    -2300                join.set("side", side.text)
    -2301            if kind:
    -2302                join.set("kind", kind.text)
    +2297        if join_type:
    +2298            natural: t.Optional[Token]
    +2299            side: t.Optional[Token]
    +2300            kind: t.Optional[Token]
    +2301
    +2302            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
     2303
    -2304        if on:
    -2305            on = and_(*ensure_collection(on), dialect=dialect, **opts)
    -2306            join.set("on", on)
    -2307
    -2308        if using:
    -2309            join = _apply_list_builder(
    -2310                *ensure_collection(using),
    -2311                instance=join,
    -2312                arg="using",
    -2313                append=append,
    -2314                copy=copy,
    -2315                **opts,
    -2316            )
    -2317
    -2318        if join_alias:
    -2319            join.set("this", alias_(join.this, join_alias, table=True))
    -2320        return _apply_list_builder(
    -2321            join,
    -2322            instance=self,
    -2323            arg="joins",
    -2324            append=append,
    -2325            copy=copy,
    -2326            **opts,
    -2327        )
    +2304            if natural:
    +2305                join.set("natural", True)
    +2306            if side:
    +2307                join.set("side", side.text)
    +2308            if kind:
    +2309                join.set("kind", kind.text)
    +2310
    +2311        if on:
    +2312            on = and_(*ensure_collection(on), dialect=dialect, **opts)
    +2313            join.set("on", on)
    +2314
    +2315        if using:
    +2316            join = _apply_list_builder(
    +2317                *ensure_collection(using),
    +2318                instance=join,
    +2319                arg="using",
    +2320                append=append,
    +2321                copy=copy,
    +2322                **opts,
    +2323            )
    +2324
    +2325        if join_alias:
    +2326            join.set("this", alias_(join.this, join_alias, table=True))
    +2327        return _apply_list_builder(
    +2328            join,
    +2329            instance=self,
    +2330            arg="joins",
    +2331            append=append,
    +2332            copy=copy,
    +2333            **opts,
    +2334        )
     
    @@ -21882,37 +21999,37 @@ Otherwise, this resets the expressions.
    -
    2329    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2330        """
    -2331        Append to or set the WHERE expressions.
    -2332
    -2333        Example:
    -2334            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    -2335            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    -2336
    -2337        Args:
    -2338            *expressions (str | Expression): the SQL code strings to parse.
    -2339                If an `Expression` instance is passed, it will be used as-is.
    -2340                Multiple expressions are combined with an AND operator.
    -2341            append (bool): if `True`, AND the new expressions to any existing expression.
    -2342                Otherwise, this resets the expression.
    -2343            dialect (str): the dialect used to parse the input expressions.
    -2344            copy (bool): if `False`, modify this expression instance in-place.
    -2345            opts (kwargs): other options to use to parse the input expressions.
    -2346
    -2347        Returns:
    -2348            Select: the modified expression.
    -2349        """
    -2350        return _apply_conjunction_builder(
    -2351            *expressions,
    -2352            instance=self,
    -2353            arg="where",
    -2354            append=append,
    -2355            into=Where,
    -2356            dialect=dialect,
    -2357            copy=copy,
    -2358            **opts,
    -2359        )
    +            
    2336    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2337        """
    +2338        Append to or set the WHERE expressions.
    +2339
    +2340        Example:
    +2341            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    +2342            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    +2343
    +2344        Args:
    +2345            *expressions (str | Expression): the SQL code strings to parse.
    +2346                If an `Expression` instance is passed, it will be used as-is.
    +2347                Multiple expressions are combined with an AND operator.
    +2348            append (bool): if `True`, AND the new expressions to any existing expression.
    +2349                Otherwise, this resets the expression.
    +2350            dialect (str): the dialect used to parse the input expressions.
    +2351            copy (bool): if `False`, modify this expression instance in-place.
    +2352            opts (kwargs): other options to use to parse the input expressions.
    +2353
    +2354        Returns:
    +2355            Select: the modified expression.
    +2356        """
    +2357        return _apply_conjunction_builder(
    +2358            *expressions,
    +2359            instance=self,
    +2360            arg="where",
    +2361            append=append,
    +2362            into=Where,
    +2363            dialect=dialect,
    +2364            copy=copy,
    +2365            **opts,
    +2366        )
     
    @@ -21961,37 +22078,37 @@ Otherwise, this resets the expression.
    -
    2361    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2362        """
    -2363        Append to or set the HAVING expressions.
    -2364
    -2365        Example:
    -2366            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    -2367            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    -2368
    -2369        Args:
    -2370            *expressions (str | Expression): the SQL code strings to parse.
    -2371                If an `Expression` instance is passed, it will be used as-is.
    -2372                Multiple expressions are combined with an AND operator.
    -2373            append (bool): if `True`, AND the new expressions to any existing expression.
    -2374                Otherwise, this resets the expression.
    -2375            dialect (str): the dialect used to parse the input expressions.
    -2376            copy (bool): if `False`, modify this expression instance in-place.
    -2377            opts (kwargs): other options to use to parse the input expressions.
    -2378
    -2379        Returns:
    -2380            Select: the modified expression.
    -2381        """
    -2382        return _apply_conjunction_builder(
    -2383            *expressions,
    -2384            instance=self,
    -2385            arg="having",
    -2386            append=append,
    -2387            into=Having,
    -2388            dialect=dialect,
    -2389            copy=copy,
    -2390            **opts,
    -2391        )
    +            
    2368    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2369        """
    +2370        Append to or set the HAVING expressions.
    +2371
    +2372        Example:
    +2373            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    +2374            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    +2375
    +2376        Args:
    +2377            *expressions (str | Expression): the SQL code strings to parse.
    +2378                If an `Expression` instance is passed, it will be used as-is.
    +2379                Multiple expressions are combined with an AND operator.
    +2380            append (bool): if `True`, AND the new expressions to any existing expression.
    +2381                Otherwise, this resets the expression.
    +2382            dialect (str): the dialect used to parse the input expressions.
    +2383            copy (bool): if `False`, modify this expression instance in-place.
    +2384            opts (kwargs): other options to use to parse the input expressions.
    +2385
    +2386        Returns:
    +2387            Select: the modified expression.
    +2388        """
    +2389        return _apply_conjunction_builder(
    +2390            *expressions,
    +2391            instance=self,
    +2392            arg="having",
    +2393            append=append,
    +2394            into=Having,
    +2395            dialect=dialect,
    +2396            copy=copy,
    +2397            **opts,
    +2398        )
     
    @@ -22040,17 +22157,45 @@ Otherwise, this resets the expression.
    -
    2393    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2394        return _apply_list_builder(
    -2395            *expressions,
    -2396            instance=self,
    -2397            arg="windows",
    -2398            append=append,
    -2399            into=Window,
    -2400            dialect=dialect,
    -2401            copy=copy,
    -2402            **opts,
    -2403        )
    +            
    2400    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2401        return _apply_list_builder(
    +2402            *expressions,
    +2403            instance=self,
    +2404            arg="windows",
    +2405            append=append,
    +2406            into=Window,
    +2407            dialect=dialect,
    +2408            copy=copy,
    +2409            **opts,
    +2410        )
    +
    + + + + +
    +
    + +
    + + def + qualify( self, *expressions, append=True, dialect=None, copy=True, **opts) -> sqlglot.expressions.Select: + + + +
    + +
    2412    def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2413        return _apply_conjunction_builder(
    +2414            *expressions,
    +2415            instance=self,
    +2416            arg="qualify",
    +2417            append=append,
    +2418            into=Qualify,
    +2419            dialect=dialect,
    +2420            copy=copy,
    +2421            **opts,
    +2422        )
     
    @@ -22068,24 +22213,24 @@ Otherwise, this resets the expression.
    -
    2405    def distinct(self, distinct=True, copy=True) -> Select:
    -2406        """
    -2407        Set the OFFSET expression.
    -2408
    -2409        Example:
    -2410            >>> Select().from_("tbl").select("x").distinct().sql()
    -2411            'SELECT DISTINCT x FROM tbl'
    -2412
    -2413        Args:
    -2414            distinct (bool): whether the Select should be distinct
    -2415            copy (bool): if `False`, modify this expression instance in-place.
    -2416
    -2417        Returns:
    -2418            Select: the modified expression.
    -2419        """
    -2420        instance = _maybe_copy(self, copy)
    -2421        instance.set("distinct", Distinct() if distinct else None)
    -2422        return instance
    +            
    2424    def distinct(self, distinct=True, copy=True) -> Select:
    +2425        """
    +2426        Set the OFFSET expression.
    +2427
    +2428        Example:
    +2429            >>> Select().from_("tbl").select("x").distinct().sql()
    +2430            'SELECT DISTINCT x FROM tbl'
    +2431
    +2432        Args:
    +2433            distinct (bool): whether the Select should be distinct
    +2434            copy (bool): if `False`, modify this expression instance in-place.
    +2435
    +2436        Returns:
    +2437            Select: the modified expression.
    +2438        """
    +2439        instance = _maybe_copy(self, copy)
    +2440        instance.set("distinct", Distinct() if distinct else None)
    +2441        return instance
     
    @@ -22128,42 +22273,42 @@ Otherwise, this resets the expression.
    -
    2424    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    -2425        """
    -2426        Convert this expression to a CREATE TABLE AS statement.
    -2427
    -2428        Example:
    -2429            >>> Select().select("*").from_("tbl").ctas("x").sql()
    -2430            'CREATE TABLE x AS SELECT * FROM tbl'
    -2431
    -2432        Args:
    -2433            table (str | Expression): the SQL code string to parse as the table name.
    -2434                If another `Expression` instance is passed, it will be used as-is.
    -2435            properties (dict): an optional mapping of table properties
    -2436            dialect (str): the dialect used to parse the input table.
    -2437            copy (bool): if `False`, modify this expression instance in-place.
    -2438            opts (kwargs): other options to use to parse the input table.
    -2439
    -2440        Returns:
    -2441            Create: the CREATE TABLE AS expression
    -2442        """
    -2443        instance = _maybe_copy(self, copy)
    -2444        table_expression = maybe_parse(
    -2445            table,
    -2446            into=Table,
    -2447            dialect=dialect,
    -2448            **opts,
    -2449        )
    -2450        properties_expression = None
    -2451        if properties:
    -2452            properties_expression = Properties.from_dict(properties)
    -2453
    -2454        return Create(
    -2455            this=table_expression,
    -2456            kind="table",
    -2457            expression=instance,
    -2458            properties=properties_expression,
    -2459        )
    +            
    2443    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    +2444        """
    +2445        Convert this expression to a CREATE TABLE AS statement.
    +2446
    +2447        Example:
    +2448            >>> Select().select("*").from_("tbl").ctas("x").sql()
    +2449            'CREATE TABLE x AS SELECT * FROM tbl'
    +2450
    +2451        Args:
    +2452            table (str | Expression): the SQL code string to parse as the table name.
    +2453                If another `Expression` instance is passed, it will be used as-is.
    +2454            properties (dict): an optional mapping of table properties
    +2455            dialect (str): the dialect used to parse the input table.
    +2456            copy (bool): if `False`, modify this expression instance in-place.
    +2457            opts (kwargs): other options to use to parse the input table.
    +2458
    +2459        Returns:
    +2460            Create: the CREATE TABLE AS expression
    +2461        """
    +2462        instance = _maybe_copy(self, copy)
    +2463        table_expression = maybe_parse(
    +2464            table,
    +2465            into=Table,
    +2466            dialect=dialect,
    +2467            **opts,
    +2468        )
    +2469        properties_expression = None
    +2470        if properties:
    +2471            properties_expression = Properties.from_dict(properties)
    +2472
    +2473        return Create(
    +2474            this=table_expression,
    +2475            kind="table",
    +2476            expression=instance,
    +2477            properties=properties_expression,
    +2478        )
     
    @@ -22210,29 +22355,29 @@ If another Expression instance is passed,
    -
    2461    def lock(self, update: bool = True, copy: bool = True) -> Select:
    -2462        """
    -2463        Set the locking read mode for this expression.
    -2464
    -2465        Examples:
    -2466            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    -2467            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    -2468
    -2469            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    -2470            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    -2471
    -2472        Args:
    -2473            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    -2474            copy: if `False`, modify this expression instance in-place.
    -2475
    -2476        Returns:
    -2477            The modified expression.
    -2478        """
    -2479
    -2480        inst = _maybe_copy(self, copy)
    -2481        inst.set("lock", Lock(update=update))
    -2482
    -2483        return inst
    +            
    2480    def lock(self, update: bool = True, copy: bool = True) -> Select:
    +2481        """
    +2482        Set the locking read mode for this expression.
    +2483
    +2484        Examples:
    +2485            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    +2486            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    +2487
    +2488            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    +2489            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    +2490
    +2491        Args:
    +2492            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    +2493            copy: if `False`, modify this expression instance in-place.
    +2494
    +2495        Returns:
    +2496            The modified expression.
    +2497        """
    +2498
    +2499        inst = _maybe_copy(self, copy)
    +2500        inst.set("lock", Lock(update=update))
    +2501
    +2502        return inst
     
    @@ -22348,30 +22493,30 @@ If another Expression instance is passed,
    -
    2498class Subquery(DerivedTable, Unionable):
    -2499    arg_types = {
    -2500        "this": True,
    -2501        "alias": False,
    -2502        "with": False,
    -2503        **QUERY_MODIFIERS,
    -2504    }
    -2505
    -2506    def unnest(self):
    -2507        """
    -2508        Returns the first non subquery.
    -2509        """
    -2510        expression = self
    -2511        while isinstance(expression, Subquery):
    -2512            expression = expression.this
    -2513        return expression
    -2514
    -2515    @property
    -2516    def is_star(self) -> bool:
    -2517        return self.this.is_star
    -2518
    -2519    @property
    -2520    def output_name(self):
    -2521        return self.alias
    +            
    2517class Subquery(DerivedTable, Unionable):
    +2518    arg_types = {
    +2519        "this": True,
    +2520        "alias": False,
    +2521        "with": False,
    +2522        **QUERY_MODIFIERS,
    +2523    }
    +2524
    +2525    def unnest(self):
    +2526        """
    +2527        Returns the first non subquery.
    +2528        """
    +2529        expression = self
    +2530        while isinstance(expression, Subquery):
    +2531            expression = expression.this
    +2532        return expression
    +2533
    +2534    @property
    +2535    def is_star(self) -> bool:
    +2536        return self.this.is_star
    +2537
    +2538    @property
    +2539    def output_name(self):
    +2540        return self.alias
     
    @@ -22388,14 +22533,14 @@ If another Expression instance is passed,
    -
    2506    def unnest(self):
    -2507        """
    -2508        Returns the first non subquery.
    -2509        """
    -2510        expression = self
    -2511        while isinstance(expression, Subquery):
    -2512            expression = expression.this
    -2513        return expression
    +            
    2525    def unnest(self):
    +2526        """
    +2527        Returns the first non subquery.
    +2528        """
    +2529        expression = self
    +2530        while isinstance(expression, Subquery):
    +2531            expression = expression.this
    +2532        return expression
     
    @@ -22505,18 +22650,19 @@ If another Expression instance is passed,
    -
    2524class TableSample(Expression):
    -2525    arg_types = {
    -2526        "this": False,
    -2527        "method": False,
    -2528        "bucket_numerator": False,
    -2529        "bucket_denominator": False,
    -2530        "bucket_field": False,
    -2531        "percent": False,
    -2532        "rows": False,
    -2533        "size": False,
    -2534        "seed": False,
    -2535    }
    +            
    2543class TableSample(Expression):
    +2544    arg_types = {
    +2545        "this": False,
    +2546        "method": False,
    +2547        "bucket_numerator": False,
    +2548        "bucket_denominator": False,
    +2549        "bucket_field": False,
    +2550        "percent": False,
    +2551        "rows": False,
    +2552        "size": False,
    +2553        "seed": False,
    +2554        "kind": False,
    +2555    }
     
    @@ -22577,14 +22723,14 @@ If another Expression instance is passed,
    -
    2538class Tag(Expression):
    -2539    """Tags are used for generating arbitrary sql like SELECT <span>x</span>."""
    -2540
    -2541    arg_types = {
    -2542        "this": False,
    -2543        "prefix": False,
    -2544        "postfix": False,
    -2545    }
    +            
    2558class Tag(Expression):
    +2559    """Tags are used for generating arbitrary sql like SELECT <span>x</span>."""
    +2560
    +2561    arg_types = {
    +2562        "this": False,
    +2563        "prefix": False,
    +2564        "postfix": False,
    +2565    }
     
    @@ -22647,14 +22793,14 @@ If another Expression instance is passed,
    -
    2548class Pivot(Expression):
    -2549    arg_types = {
    -2550        "this": False,
    -2551        "alias": False,
    -2552        "expressions": True,
    -2553        "field": True,
    -2554        "unpivot": True,
    -2555    }
    +            
    2568class Pivot(Expression):
    +2569    arg_types = {
    +2570        "this": False,
    +2571        "alias": False,
    +2572        "expressions": True,
    +2573        "field": True,
    +2574        "unpivot": True,
    +2575    }
     
    @@ -22715,14 +22861,14 @@ If another Expression instance is passed,
    -
    2558class Window(Expression):
    -2559    arg_types = {
    -2560        "this": True,
    -2561        "partition_by": False,
    -2562        "order": False,
    -2563        "spec": False,
    -2564        "alias": False,
    -2565    }
    +            
    2578class Window(Expression):
    +2579    arg_types = {
    +2580        "this": True,
    +2581        "partition_by": False,
    +2582        "order": False,
    +2583        "spec": False,
    +2584        "alias": False,
    +2585    }
     
    @@ -22783,14 +22929,14 @@ If another Expression instance is passed,
    -
    2568class WindowSpec(Expression):
    -2569    arg_types = {
    -2570        "kind": False,
    -2571        "start": False,
    -2572        "start_side": False,
    -2573        "end": False,
    -2574        "end_side": False,
    -2575    }
    +            
    2588class WindowSpec(Expression):
    +2589    arg_types = {
    +2590        "kind": False,
    +2591        "start": False,
    +2592        "start_side": False,
    +2593        "end": False,
    +2594        "end_side": False,
    +2595    }
     
    @@ -22851,8 +22997,8 @@ If another Expression instance is passed,
    -
    2578class Where(Expression):
    -2579    pass
    +            
    2598class Where(Expression):
    +2599    pass
     
    @@ -22913,16 +23059,16 @@ If another Expression instance is passed,
    -
    2582class Star(Expression):
    -2583    arg_types = {"except": False, "replace": False}
    -2584
    -2585    @property
    -2586    def name(self) -> str:
    -2587        return "*"
    -2588
    -2589    @property
    -2590    def output_name(self):
    -2591        return self.name
    +            
    2602class Star(Expression):
    +2603    arg_types = {"except": False, "replace": False}
    +2604
    +2605    @property
    +2606    def name(self) -> str:
    +2607        return "*"
    +2608
    +2609    @property
    +2610    def output_name(self):
    +2611        return self.name
     
    @@ -23012,8 +23158,8 @@ If another Expression instance is passed,
    -
    2594class Parameter(Expression):
    -2595    arg_types = {"this": True, "wrapped": False}
    +            
    2614class Parameter(Expression):
    +2615    arg_types = {"this": True, "wrapped": False}
     
    @@ -23074,8 +23220,8 @@ If another Expression instance is passed,
    -
    2598class SessionParameter(Expression):
    -2599    arg_types = {"this": True, "kind": False}
    +            
    2618class SessionParameter(Expression):
    +2619    arg_types = {"this": True, "kind": False}
     
    @@ -23136,8 +23282,8 @@ If another Expression instance is passed,
    -
    2602class Placeholder(Expression):
    -2603    arg_types = {"this": False}
    +            
    2622class Placeholder(Expression):
    +2623    arg_types = {"this": False}
     
    @@ -23198,12 +23344,12 @@ If another Expression instance is passed,
    -
    2606class Null(Condition):
    -2607    arg_types: t.Dict[str, t.Any] = {}
    -2608
    -2609    @property
    -2610    def name(self) -> str:
    -2611        return "NULL"
    +            
    2626class Null(Condition):
    +2627    arg_types: t.Dict[str, t.Any] = {}
    +2628
    +2629    @property
    +2630    def name(self) -> str:
    +2631        return "NULL"
     
    @@ -23270,8 +23416,8 @@ If another Expression instance is passed,
    -
    2614class Boolean(Condition):
    -2615    pass
    +            
    2634class Boolean(Condition):
    +2635    pass
     
    @@ -23338,122 +23484,122 @@ If another Expression instance is passed,
    -
    2618class DataType(Expression):
    -2619    arg_types = {
    -2620        "this": True,
    -2621        "expressions": False,
    -2622        "nested": False,
    -2623        "values": False,
    -2624        "prefix": False,
    -2625    }
    -2626
    -2627    class Type(AutoName):
    -2628        CHAR = auto()
    -2629        NCHAR = auto()
    -2630        VARCHAR = auto()
    -2631        NVARCHAR = auto()
    -2632        TEXT = auto()
    -2633        MEDIUMTEXT = auto()
    -2634        LONGTEXT = auto()
    -2635        MEDIUMBLOB = auto()
    -2636        LONGBLOB = auto()
    -2637        BINARY = auto()
    -2638        VARBINARY = auto()
    -2639        INT = auto()
    -2640        TINYINT = auto()
    -2641        SMALLINT = auto()
    -2642        BIGINT = auto()
    -2643        FLOAT = auto()
    -2644        DOUBLE = auto()
    -2645        DECIMAL = auto()
    -2646        BOOLEAN = auto()
    -2647        JSON = auto()
    -2648        JSONB = auto()
    -2649        INTERVAL = auto()
    -2650        TIME = auto()
    -2651        TIMESTAMP = auto()
    -2652        TIMESTAMPTZ = auto()
    -2653        TIMESTAMPLTZ = auto()
    -2654        DATE = auto()
    -2655        DATETIME = auto()
    -2656        ARRAY = auto()
    -2657        MAP = auto()
    -2658        UUID = auto()
    -2659        GEOGRAPHY = auto()
    -2660        GEOMETRY = auto()
    -2661        STRUCT = auto()
    -2662        NULLABLE = auto()
    -2663        HLLSKETCH = auto()
    -2664        HSTORE = auto()
    -2665        SUPER = auto()
    -2666        SERIAL = auto()
    -2667        SMALLSERIAL = auto()
    -2668        BIGSERIAL = auto()
    -2669        XML = auto()
    -2670        UNIQUEIDENTIFIER = auto()
    -2671        MONEY = auto()
    -2672        SMALLMONEY = auto()
    -2673        ROWVERSION = auto()
    -2674        IMAGE = auto()
    -2675        VARIANT = auto()
    -2676        OBJECT = auto()
    -2677        INET = auto()
    -2678        NULL = auto()
    -2679        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    -2680
    -2681    TEXT_TYPES = {
    -2682        Type.CHAR,
    -2683        Type.NCHAR,
    -2684        Type.VARCHAR,
    -2685        Type.NVARCHAR,
    -2686        Type.TEXT,
    -2687    }
    -2688
    -2689    INTEGER_TYPES = {
    -2690        Type.INT,
    -2691        Type.TINYINT,
    -2692        Type.SMALLINT,
    -2693        Type.BIGINT,
    -2694    }
    -2695
    -2696    FLOAT_TYPES = {
    -2697        Type.FLOAT,
    -2698        Type.DOUBLE,
    -2699    }
    +            
    2638class DataType(Expression):
    +2639    arg_types = {
    +2640        "this": True,
    +2641        "expressions": False,
    +2642        "nested": False,
    +2643        "values": False,
    +2644        "prefix": False,
    +2645    }
    +2646
    +2647    class Type(AutoName):
    +2648        CHAR = auto()
    +2649        NCHAR = auto()
    +2650        VARCHAR = auto()
    +2651        NVARCHAR = auto()
    +2652        TEXT = auto()
    +2653        MEDIUMTEXT = auto()
    +2654        LONGTEXT = auto()
    +2655        MEDIUMBLOB = auto()
    +2656        LONGBLOB = auto()
    +2657        BINARY = auto()
    +2658        VARBINARY = auto()
    +2659        INT = auto()
    +2660        TINYINT = auto()
    +2661        SMALLINT = auto()
    +2662        BIGINT = auto()
    +2663        FLOAT = auto()
    +2664        DOUBLE = auto()
    +2665        DECIMAL = auto()
    +2666        BOOLEAN = auto()
    +2667        JSON = auto()
    +2668        JSONB = auto()
    +2669        INTERVAL = auto()
    +2670        TIME = auto()
    +2671        TIMESTAMP = auto()
    +2672        TIMESTAMPTZ = auto()
    +2673        TIMESTAMPLTZ = auto()
    +2674        DATE = auto()
    +2675        DATETIME = auto()
    +2676        ARRAY = auto()
    +2677        MAP = auto()
    +2678        UUID = auto()
    +2679        GEOGRAPHY = auto()
    +2680        GEOMETRY = auto()
    +2681        STRUCT = auto()
    +2682        NULLABLE = auto()
    +2683        HLLSKETCH = auto()
    +2684        HSTORE = auto()
    +2685        SUPER = auto()
    +2686        SERIAL = auto()
    +2687        SMALLSERIAL = auto()
    +2688        BIGSERIAL = auto()
    +2689        XML = auto()
    +2690        UNIQUEIDENTIFIER = auto()
    +2691        MONEY = auto()
    +2692        SMALLMONEY = auto()
    +2693        ROWVERSION = auto()
    +2694        IMAGE = auto()
    +2695        VARIANT = auto()
    +2696        OBJECT = auto()
    +2697        INET = auto()
    +2698        NULL = auto()
    +2699        UNKNOWN = auto()  # Sentinel value, useful for type annotation
     2700
    -2701    NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES}
    -2702
    -2703    TEMPORAL_TYPES = {
    -2704        Type.TIMESTAMP,
    -2705        Type.TIMESTAMPTZ,
    -2706        Type.TIMESTAMPLTZ,
    -2707        Type.DATE,
    -2708        Type.DATETIME,
    -2709    }
    -2710
    -2711    @classmethod
    -2712    def build(
    -2713        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    -2714    ) -> DataType:
    -2715        from sqlglot import parse_one
    -2716
    -2717        if isinstance(dtype, str):
    -2718            if dtype.upper() in cls.Type.__members__:
    -2719                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    -2720            else:
    -2721                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    -2722            if data_type_exp is None:
    -2723                raise ValueError(f"Unparsable data type value: {dtype}")
    -2724        elif isinstance(dtype, DataType.Type):
    -2725            data_type_exp = DataType(this=dtype)
    -2726        elif isinstance(dtype, DataType):
    -2727            return dtype
    -2728        else:
    -2729            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    -2730        return DataType(**{**data_type_exp.args, **kwargs})
    -2731
    -2732    def is_type(self, dtype: DataType.Type) -> bool:
    -2733        return self.this == dtype
    +2701    TEXT_TYPES = {
    +2702        Type.CHAR,
    +2703        Type.NCHAR,
    +2704        Type.VARCHAR,
    +2705        Type.NVARCHAR,
    +2706        Type.TEXT,
    +2707    }
    +2708
    +2709    INTEGER_TYPES = {
    +2710        Type.INT,
    +2711        Type.TINYINT,
    +2712        Type.SMALLINT,
    +2713        Type.BIGINT,
    +2714    }
    +2715
    +2716    FLOAT_TYPES = {
    +2717        Type.FLOAT,
    +2718        Type.DOUBLE,
    +2719    }
    +2720
    +2721    NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES}
    +2722
    +2723    TEMPORAL_TYPES = {
    +2724        Type.TIMESTAMP,
    +2725        Type.TIMESTAMPTZ,
    +2726        Type.TIMESTAMPLTZ,
    +2727        Type.DATE,
    +2728        Type.DATETIME,
    +2729    }
    +2730
    +2731    @classmethod
    +2732    def build(
    +2733        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    +2734    ) -> DataType:
    +2735        from sqlglot import parse_one
    +2736
    +2737        if isinstance(dtype, str):
    +2738            if dtype.upper() in cls.Type.__members__:
    +2739                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    +2740            else:
    +2741                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    +2742            if data_type_exp is None:
    +2743                raise ValueError(f"Unparsable data type value: {dtype}")
    +2744        elif isinstance(dtype, DataType.Type):
    +2745            data_type_exp = DataType(this=dtype)
    +2746        elif isinstance(dtype, DataType):
    +2747            return dtype
    +2748        else:
    +2749            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    +2750        return DataType(**{**data_type_exp.args, **kwargs})
    +2751
    +2752    def is_type(self, dtype: DataType.Type) -> bool:
    +2753        return self.this == dtype
     
    @@ -23471,26 +23617,26 @@ If another Expression instance is passed,
    -
    2711    @classmethod
    -2712    def build(
    -2713        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    -2714    ) -> DataType:
    -2715        from sqlglot import parse_one
    -2716
    -2717        if isinstance(dtype, str):
    -2718            if dtype.upper() in cls.Type.__members__:
    -2719                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    -2720            else:
    -2721                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    -2722            if data_type_exp is None:
    -2723                raise ValueError(f"Unparsable data type value: {dtype}")
    -2724        elif isinstance(dtype, DataType.Type):
    -2725            data_type_exp = DataType(this=dtype)
    -2726        elif isinstance(dtype, DataType):
    -2727            return dtype
    -2728        else:
    -2729            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    -2730        return DataType(**{**data_type_exp.args, **kwargs})
    +            
    2731    @classmethod
    +2732    def build(
    +2733        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    +2734    ) -> DataType:
    +2735        from sqlglot import parse_one
    +2736
    +2737        if isinstance(dtype, str):
    +2738            if dtype.upper() in cls.Type.__members__:
    +2739                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    +2740            else:
    +2741                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    +2742            if data_type_exp is None:
    +2743                raise ValueError(f"Unparsable data type value: {dtype}")
    +2744        elif isinstance(dtype, DataType.Type):
    +2745            data_type_exp = DataType(this=dtype)
    +2746        elif isinstance(dtype, DataType):
    +2747            return dtype
    +2748        else:
    +2749            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    +2750        return DataType(**{**data_type_exp.args, **kwargs})
     
    @@ -23508,8 +23654,8 @@ If another Expression instance is passed,
    -
    2732    def is_type(self, dtype: DataType.Type) -> bool:
    -2733        return self.this == dtype
    +            
    2752    def is_type(self, dtype: DataType.Type) -> bool:
    +2753        return self.this == dtype
     
    @@ -23571,59 +23717,59 @@ If another Expression instance is passed,
    -
    2627    class Type(AutoName):
    -2628        CHAR = auto()
    -2629        NCHAR = auto()
    -2630        VARCHAR = auto()
    -2631        NVARCHAR = auto()
    -2632        TEXT = auto()
    -2633        MEDIUMTEXT = auto()
    -2634        LONGTEXT = auto()
    -2635        MEDIUMBLOB = auto()
    -2636        LONGBLOB = auto()
    -2637        BINARY = auto()
    -2638        VARBINARY = auto()
    -2639        INT = auto()
    -2640        TINYINT = auto()
    -2641        SMALLINT = auto()
    -2642        BIGINT = auto()
    -2643        FLOAT = auto()
    -2644        DOUBLE = auto()
    -2645        DECIMAL = auto()
    -2646        BOOLEAN = auto()
    -2647        JSON = auto()
    -2648        JSONB = auto()
    -2649        INTERVAL = auto()
    -2650        TIME = auto()
    -2651        TIMESTAMP = auto()
    -2652        TIMESTAMPTZ = auto()
    -2653        TIMESTAMPLTZ = auto()
    -2654        DATE = auto()
    -2655        DATETIME = auto()
    -2656        ARRAY = auto()
    -2657        MAP = auto()
    -2658        UUID = auto()
    -2659        GEOGRAPHY = auto()
    -2660        GEOMETRY = auto()
    -2661        STRUCT = auto()
    -2662        NULLABLE = auto()
    -2663        HLLSKETCH = auto()
    -2664        HSTORE = auto()
    -2665        SUPER = auto()
    -2666        SERIAL = auto()
    -2667        SMALLSERIAL = auto()
    -2668        BIGSERIAL = auto()
    -2669        XML = auto()
    -2670        UNIQUEIDENTIFIER = auto()
    -2671        MONEY = auto()
    -2672        SMALLMONEY = auto()
    -2673        ROWVERSION = auto()
    -2674        IMAGE = auto()
    -2675        VARIANT = auto()
    -2676        OBJECT = auto()
    -2677        INET = auto()
    -2678        NULL = auto()
    -2679        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    +            
    2647    class Type(AutoName):
    +2648        CHAR = auto()
    +2649        NCHAR = auto()
    +2650        VARCHAR = auto()
    +2651        NVARCHAR = auto()
    +2652        TEXT = auto()
    +2653        MEDIUMTEXT = auto()
    +2654        LONGTEXT = auto()
    +2655        MEDIUMBLOB = auto()
    +2656        LONGBLOB = auto()
    +2657        BINARY = auto()
    +2658        VARBINARY = auto()
    +2659        INT = auto()
    +2660        TINYINT = auto()
    +2661        SMALLINT = auto()
    +2662        BIGINT = auto()
    +2663        FLOAT = auto()
    +2664        DOUBLE = auto()
    +2665        DECIMAL = auto()
    +2666        BOOLEAN = auto()
    +2667        JSON = auto()
    +2668        JSONB = auto()
    +2669        INTERVAL = auto()
    +2670        TIME = auto()
    +2671        TIMESTAMP = auto()
    +2672        TIMESTAMPTZ = auto()
    +2673        TIMESTAMPLTZ = auto()
    +2674        DATE = auto()
    +2675        DATETIME = auto()
    +2676        ARRAY = auto()
    +2677        MAP = auto()
    +2678        UUID = auto()
    +2679        GEOGRAPHY = auto()
    +2680        GEOMETRY = auto()
    +2681        STRUCT = auto()
    +2682        NULLABLE = auto()
    +2683        HLLSKETCH = auto()
    +2684        HSTORE = auto()
    +2685        SUPER = auto()
    +2686        SERIAL = auto()
    +2687        SMALLSERIAL = auto()
    +2688        BIGSERIAL = auto()
    +2689        XML = auto()
    +2690        UNIQUEIDENTIFIER = auto()
    +2691        MONEY = auto()
    +2692        SMALLMONEY = auto()
    +2693        ROWVERSION = auto()
    +2694        IMAGE = auto()
    +2695        VARIANT = auto()
    +2696        OBJECT = auto()
    +2697        INET = auto()
    +2698        NULL = auto()
    +2699        UNKNOWN = auto()  # Sentinel value, useful for type annotation
     
    @@ -24277,8 +24423,8 @@ If another Expression instance is passed,
    -
    2737class PseudoType(Expression):
    -2738    pass
    +            
    2757class PseudoType(Expression):
    +2758    pass
     
    @@ -24339,8 +24485,8 @@ If another Expression instance is passed,
    -
    2741class StructKwarg(Expression):
    -2742    arg_types = {"this": True, "expression": True}
    +            
    2761class StructKwarg(Expression):
    +2762    arg_types = {"this": True, "expression": True}
     
    @@ -24401,8 +24547,8 @@ If another Expression instance is passed,
    -
    2746class SubqueryPredicate(Predicate):
    -2747    pass
    +            
    2766class SubqueryPredicate(Predicate):
    +2767    pass
     
    @@ -24469,8 +24615,8 @@ If another Expression instance is passed,
    -
    2750class All(SubqueryPredicate):
    -2751    pass
    +            
    2770class All(SubqueryPredicate):
    +2771    pass
     
    @@ -24537,8 +24683,8 @@ If another Expression instance is passed,
    -
    2754class Any(SubqueryPredicate):
    -2755    pass
    +            
    2774class Any(SubqueryPredicate):
    +2775    pass
     
    @@ -24605,8 +24751,8 @@ If another Expression instance is passed,
    -
    2758class Exists(SubqueryPredicate):
    -2759    pass
    +            
    2778class Exists(SubqueryPredicate):
    +2779    pass
     
    @@ -24673,8 +24819,8 @@ If another Expression instance is passed,
    -
    2764class Command(Expression):
    -2765    arg_types = {"this": True, "expression": False}
    +            
    2784class Command(Expression):
    +2785    arg_types = {"this": True, "expression": False}
     
    @@ -24735,8 +24881,8 @@ If another Expression instance is passed,
    -
    2768class Transaction(Expression):
    -2769    arg_types = {"this": False, "modes": False}
    +            
    2788class Transaction(Expression):
    +2789    arg_types = {"this": False, "modes": False}
     
    @@ -24797,8 +24943,8 @@ If another Expression instance is passed,
    -
    2772class Commit(Expression):
    -2773    arg_types = {"chain": False}
    +            
    2792class Commit(Expression):
    +2793    arg_types = {"chain": False}
     
    @@ -24859,8 +25005,8 @@ If another Expression instance is passed,
    -
    2776class Rollback(Expression):
    -2777    arg_types = {"savepoint": False}
    +            
    2796class Rollback(Expression):
    +2797    arg_types = {"savepoint": False}
     
    @@ -24921,8 +25067,8 @@ If another Expression instance is passed,
    -
    2780class AlterTable(Expression):
    -2781    arg_types = {"this": True, "actions": True, "exists": False}
    +            
    2800class AlterTable(Expression):
    +2801    arg_types = {"this": True, "actions": True, "exists": False}
     
    @@ -24983,8 +25129,8 @@ If another Expression instance is passed,
    -
    2784class AddConstraint(Expression):
    -2785    arg_types = {"this": False, "expression": False, "enforced": False}
    +            
    2804class AddConstraint(Expression):
    +2805    arg_types = {"this": False, "expression": False, "enforced": False}
     
    @@ -25045,8 +25191,8 @@ If another Expression instance is passed,
    -
    2788class DropPartition(Expression):
    -2789    arg_types = {"expressions": True, "exists": False}
    +            
    2808class DropPartition(Expression):
    +2809    arg_types = {"expressions": True, "exists": False}
     
    @@ -25107,16 +25253,16 @@ If another Expression instance is passed,
    -
    2793class Binary(Expression):
    -2794    arg_types = {"this": True, "expression": True}
    -2795
    -2796    @property
    -2797    def left(self):
    -2798        return self.this
    -2799
    -2800    @property
    -2801    def right(self):
    -2802        return self.expression
    +            
    2813class Binary(Expression):
    +2814    arg_types = {"this": True, "expression": True}
    +2815
    +2816    @property
    +2817    def left(self):
    +2818        return self.this
    +2819
    +2820    @property
    +2821    def right(self):
    +2822        return self.expression
     
    @@ -25177,8 +25323,8 @@ If another Expression instance is passed,
    -
    2805class Add(Binary):
    -2806    pass
    +            
    2825class Add(Binary):
    +2826    pass
     
    @@ -25239,8 +25385,8 @@ If another Expression instance is passed,
    -
    2809class Connector(Binary, Condition):
    -2810    pass
    +            
    2829class Connector(Binary, Condition):
    +2830    pass
     
    @@ -25307,8 +25453,8 @@ If another Expression instance is passed,
    -
    2813class And(Connector):
    -2814    pass
    +            
    2833class And(Connector):
    +2834    pass
     
    @@ -25375,8 +25521,8 @@ If another Expression instance is passed,
    -
    2817class Or(Connector):
    -2818    pass
    +            
    2837class Or(Connector):
    +2838    pass
     
    @@ -25443,8 +25589,8 @@ If another Expression instance is passed,
    -
    2821class BitwiseAnd(Binary):
    -2822    pass
    +            
    2841class BitwiseAnd(Binary):
    +2842    pass
     
    @@ -25505,8 +25651,8 @@ If another Expression instance is passed,
    -
    2825class BitwiseLeftShift(Binary):
    -2826    pass
    +            
    2845class BitwiseLeftShift(Binary):
    +2846    pass
     
    @@ -25567,8 +25713,8 @@ If another Expression instance is passed,
    -
    2829class BitwiseOr(Binary):
    -2830    pass
    +            
    2849class BitwiseOr(Binary):
    +2850    pass
     
    @@ -25629,8 +25775,8 @@ If another Expression instance is passed,
    -
    2833class BitwiseRightShift(Binary):
    -2834    pass
    +            
    2853class BitwiseRightShift(Binary):
    +2854    pass
     
    @@ -25691,8 +25837,8 @@ If another Expression instance is passed,
    -
    2837class BitwiseXor(Binary):
    -2838    pass
    +            
    2857class BitwiseXor(Binary):
    +2858    pass
     
    @@ -25753,8 +25899,8 @@ If another Expression instance is passed,
    -
    2841class Div(Binary):
    -2842    pass
    +            
    2861class Div(Binary):
    +2862    pass
     
    @@ -25800,6 +25946,68 @@ If another Expression instance is passed,
    dump
    load
    +
    + + +
    +
    + +
    + + class + FloatDiv(Binary): + + + +
    + +
    2865class FloatDiv(Binary):
    +2866    pass
    +
    + + + + + @@ -25815,8 +26023,8 @@ If another Expression instance is passed, -
    2845class Overlaps(Binary):
    -2846    pass
    +            
    2869class Overlaps(Binary):
    +2870    pass
     
    @@ -25877,10 +26085,10 @@ If another Expression instance is passed,
    -
    2849class Dot(Binary):
    -2850    @property
    -2851    def name(self) -> str:
    -2852        return self.expression.name
    +            
    2873class Dot(Binary):
    +2874    @property
    +2875    def name(self) -> str:
    +2876        return self.expression.name
     
    @@ -25941,8 +26149,8 @@ If another Expression instance is passed,
    -
    2855class DPipe(Binary):
    -2856    pass
    +            
    2879class DPipe(Binary):
    +2880    pass
     
    @@ -26003,8 +26211,8 @@ If another Expression instance is passed,
    -
    2859class EQ(Binary, Predicate):
    -2860    pass
    +            
    2883class EQ(Binary, Predicate):
    +2884    pass
     
    @@ -26071,8 +26279,8 @@ If another Expression instance is passed,
    -
    2863class NullSafeEQ(Binary, Predicate):
    -2864    pass
    +            
    2887class NullSafeEQ(Binary, Predicate):
    +2888    pass
     
    @@ -26139,8 +26347,8 @@ If another Expression instance is passed,
    -
    2867class NullSafeNEQ(Binary, Predicate):
    -2868    pass
    +            
    2891class NullSafeNEQ(Binary, Predicate):
    +2892    pass
     
    @@ -26207,8 +26415,8 @@ If another Expression instance is passed,
    -
    2871class Distance(Binary):
    -2872    pass
    +            
    2895class Distance(Binary):
    +2896    pass
     
    @@ -26269,8 +26477,8 @@ If another Expression instance is passed,
    -
    2875class Escape(Binary):
    -2876    pass
    +            
    2899class Escape(Binary):
    +2900    pass
     
    @@ -26331,8 +26539,8 @@ If another Expression instance is passed,
    -
    2879class Glob(Binary, Predicate):
    -2880    pass
    +            
    2903class Glob(Binary, Predicate):
    +2904    pass
     
    @@ -26399,8 +26607,8 @@ If another Expression instance is passed,
    -
    2883class GT(Binary, Predicate):
    -2884    pass
    +            
    2907class GT(Binary, Predicate):
    +2908    pass
     
    @@ -26467,8 +26675,8 @@ If another Expression instance is passed,
    -
    2887class GTE(Binary, Predicate):
    -2888    pass
    +            
    2911class GTE(Binary, Predicate):
    +2912    pass
     
    @@ -26535,8 +26743,8 @@ If another Expression instance is passed,
    -
    2891class ILike(Binary, Predicate):
    -2892    pass
    +            
    2915class ILike(Binary, Predicate):
    +2916    pass
     
    @@ -26603,8 +26811,8 @@ If another Expression instance is passed,
    -
    2895class ILikeAny(Binary, Predicate):
    -2896    pass
    +            
    2919class ILikeAny(Binary, Predicate):
    +2920    pass
     
    @@ -26671,8 +26879,8 @@ If another Expression instance is passed,
    -
    2899class IntDiv(Binary):
    -2900    pass
    +            
    2923class IntDiv(Binary):
    +2924    pass
     
    @@ -26733,8 +26941,8 @@ If another Expression instance is passed,
    -
    2903class Is(Binary, Predicate):
    -2904    pass
    +            
    2927class Is(Binary, Predicate):
    +2928    pass
     
    @@ -26801,8 +27009,8 @@ If another Expression instance is passed,
    -
    2907class Kwarg(Binary):
    -2908    """Kwarg in special functions like func(kwarg => y)."""
    +            
    2931class Kwarg(Binary):
    +2932    """Kwarg in special functions like func(kwarg => y)."""
     
    @@ -26865,8 +27073,8 @@ If another Expression instance is passed,
    -
    2911class Like(Binary, Predicate):
    -2912    pass
    +            
    2935class Like(Binary, Predicate):
    +2936    pass
     
    @@ -26933,8 +27141,8 @@ If another Expression instance is passed,
    -
    2915class LikeAny(Binary, Predicate):
    -2916    pass
    +            
    2939class LikeAny(Binary, Predicate):
    +2940    pass
     
    @@ -27001,8 +27209,8 @@ If another Expression instance is passed,
    -
    2919class LT(Binary, Predicate):
    -2920    pass
    +            
    2943class LT(Binary, Predicate):
    +2944    pass
     
    @@ -27069,8 +27277,8 @@ If another Expression instance is passed,
    -
    2923class LTE(Binary, Predicate):
    -2924    pass
    +            
    2947class LTE(Binary, Predicate):
    +2948    pass
     
    @@ -27137,8 +27345,8 @@ If another Expression instance is passed,
    -
    2927class Mod(Binary):
    -2928    pass
    +            
    2951class Mod(Binary):
    +2952    pass
     
    @@ -27199,8 +27407,8 @@ If another Expression instance is passed,
    -
    2931class Mul(Binary):
    -2932    pass
    +            
    2955class Mul(Binary):
    +2956    pass
     
    @@ -27261,8 +27469,8 @@ If another Expression instance is passed,
    -
    2935class NEQ(Binary, Predicate):
    -2936    pass
    +            
    2959class NEQ(Binary, Predicate):
    +2960    pass
     
    @@ -27329,8 +27537,8 @@ If another Expression instance is passed,
    -
    2939class SimilarTo(Binary, Predicate):
    -2940    pass
    +            
    2963class SimilarTo(Binary, Predicate):
    +2964    pass
     
    @@ -27397,8 +27605,8 @@ If another Expression instance is passed,
    -
    2943class Slice(Binary):
    -2944    arg_types = {"this": False, "expression": False}
    +            
    2967class Slice(Binary):
    +2968    arg_types = {"this": False, "expression": False}
     
    @@ -27459,8 +27667,8 @@ If another Expression instance is passed,
    -
    2947class Sub(Binary):
    -2948    pass
    +            
    2971class Sub(Binary):
    +2972    pass
     
    @@ -27521,8 +27729,8 @@ If another Expression instance is passed,
    -
    2953class Unary(Expression):
    -2954    pass
    +            
    2977class Unary(Expression):
    +2978    pass
     
    @@ -27583,8 +27791,8 @@ If another Expression instance is passed,
    -
    2957class BitwiseNot(Unary):
    -2958    pass
    +            
    2981class BitwiseNot(Unary):
    +2982    pass
     
    @@ -27645,8 +27853,8 @@ If another Expression instance is passed,
    -
    2961class Not(Unary, Condition):
    -2962    pass
    +            
    2985class Not(Unary, Condition):
    +2986    pass
     
    @@ -27713,8 +27921,8 @@ If another Expression instance is passed,
    -
    2965class Paren(Unary, Condition):
    -2966    arg_types = {"this": True, "with": False}
    +            
    2989class Paren(Unary, Condition):
    +2990    arg_types = {"this": True, "with": False}
     
    @@ -27781,8 +27989,8 @@ If another Expression instance is passed,
    -
    2969class Neg(Unary):
    -2970    pass
    +            
    2993class Neg(Unary):
    +2994    pass
     
    @@ -27843,12 +28051,12 @@ If another Expression instance is passed,
    -
    2974class Alias(Expression):
    -2975    arg_types = {"this": True, "alias": False}
    -2976
    -2977    @property
    -2978    def output_name(self):
    -2979        return self.alias
    +            
    2998class Alias(Expression):
    +2999    arg_types = {"this": True, "alias": False}
    +3000
    +3001    @property
    +3002    def output_name(self):
    +3003        return self.alias
     
    @@ -27938,12 +28146,12 @@ If another Expression instance is passed,
    -
    2982class Aliases(Expression):
    -2983    arg_types = {"this": True, "expressions": True}
    -2984
    -2985    @property
    -2986    def aliases(self):
    -2987        return self.expressions
    +            
    3006class Aliases(Expression):
    +3007    arg_types = {"this": True, "expressions": True}
    +3008
    +3009    @property
    +3010    def aliases(self):
    +3011        return self.expressions
     
    @@ -28004,8 +28212,8 @@ If another Expression instance is passed,
    -
    2990class AtTimeZone(Expression):
    -2991    arg_types = {"this": True, "zone": True}
    +            
    3014class AtTimeZone(Expression):
    +3015    arg_types = {"this": True, "zone": True}
     
    @@ -28066,8 +28274,8 @@ If another Expression instance is passed,
    -
    2994class Between(Predicate):
    -2995    arg_types = {"this": True, "low": True, "high": True}
    +            
    3018class Between(Predicate):
    +3019    arg_types = {"this": True, "low": True, "high": True}
     
    @@ -28134,8 +28342,8 @@ If another Expression instance is passed,
    -
    2998class Bracket(Condition):
    -2999    arg_types = {"this": True, "expressions": True}
    +            
    3022class Bracket(Condition):
    +3023    arg_types = {"this": True, "expressions": True}
     
    @@ -28202,8 +28410,8 @@ If another Expression instance is passed,
    -
    3002class Distinct(Expression):
    -3003    arg_types = {"expressions": False, "on": False}
    +            
    3026class Distinct(Expression):
    +3027    arg_types = {"expressions": False, "on": False}
     
    @@ -28264,15 +28472,15 @@ If another Expression instance is passed,
    -
    3006class In(Predicate):
    -3007    arg_types = {
    -3008        "this": True,
    -3009        "expressions": False,
    -3010        "query": False,
    -3011        "unnest": False,
    -3012        "field": False,
    -3013        "is_global": False,
    -3014    }
    +            
    3030class In(Predicate):
    +3031    arg_types = {
    +3032        "this": True,
    +3033        "expressions": False,
    +3034        "query": False,
    +3035        "unnest": False,
    +3036        "field": False,
    +3037        "is_global": False,
    +3038    }
     
    @@ -28339,18 +28547,18 @@ If another Expression instance is passed,
    -
    3017class TimeUnit(Expression):
    -3018    """Automatically converts unit arg into a var."""
    -3019
    -3020    arg_types = {"unit": False}
    -3021
    -3022    def __init__(self, **args):
    -3023        unit = args.get("unit")
    -3024        if isinstance(unit, Column):
    -3025            args["unit"] = Var(this=unit.name)
    -3026        elif isinstance(unit, Week):
    -3027            unit.set("this", Var(this=unit.this.name))
    -3028        super().__init__(**args)
    +            
    3041class TimeUnit(Expression):
    +3042    """Automatically converts unit arg into a var."""
    +3043
    +3044    arg_types = {"unit": False}
    +3045
    +3046    def __init__(self, **args):
    +3047        unit = args.get("unit")
    +3048        if isinstance(unit, Column):
    +3049            args["unit"] = Var(this=unit.name)
    +3050        elif isinstance(unit, Week):
    +3051            unit.set("this", Var(this=unit.this.name))
    +3052        super().__init__(**args)
     
    @@ -28368,13 +28576,13 @@ If another Expression instance is passed,
    -
    3022    def __init__(self, **args):
    -3023        unit = args.get("unit")
    -3024        if isinstance(unit, Column):
    -3025            args["unit"] = Var(this=unit.name)
    -3026        elif isinstance(unit, Week):
    -3027            unit.set("this", Var(this=unit.this.name))
    -3028        super().__init__(**args)
    +            
    3046    def __init__(self, **args):
    +3047        unit = args.get("unit")
    +3048        if isinstance(unit, Column):
    +3049            args["unit"] = Var(this=unit.name)
    +3050        elif isinstance(unit, Week):
    +3051            unit.set("this", Var(this=unit.this.name))
    +3052        super().__init__(**args)
     
    @@ -28435,8 +28643,8 @@ If another Expression instance is passed,
    -
    3031class Interval(TimeUnit):
    -3032    arg_types = {"this": False, "unit": False}
    +            
    3055class Interval(TimeUnit):
    +3056    arg_types = {"this": False, "unit": False}
     
    @@ -28500,8 +28708,8 @@ If another Expression instance is passed,
    -
    3035class IgnoreNulls(Expression):
    -3036    pass
    +            
    3059class IgnoreNulls(Expression):
    +3060    pass
     
    @@ -28562,8 +28770,8 @@ If another Expression instance is passed,
    -
    3039class RespectNulls(Expression):
    -3040    pass
    +            
    3063class RespectNulls(Expression):
    +3064    pass
     
    @@ -28624,53 +28832,53 @@ If another Expression instance is passed,
    -
    3044class Func(Condition):
    -3045    """
    -3046    The base class for all function expressions.
    -3047
    -3048    Attributes:
    -3049        is_var_len_args (bool): if set to True the last argument defined in arg_types will be
    -3050            treated as a variable length argument and the argument's value will be stored as a list.
    -3051        _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)
    -3052            for this function expression. These values are used to map this node to a name during parsing
    -3053            as well as to provide the function's name during SQL string generation. By default the SQL
    -3054            name is set to the expression's class name transformed to snake case.
    -3055    """
    -3056
    -3057    is_var_len_args = False
    -3058
    -3059    @classmethod
    -3060    def from_arg_list(cls, args):
    -3061        if cls.is_var_len_args:
    -3062            all_arg_keys = list(cls.arg_types)
    -3063            # If this function supports variable length argument treat the last argument as such.
    -3064            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    -3065            num_non_var = len(non_var_len_arg_keys)
    -3066
    -3067            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    -3068            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    -3069        else:
    -3070            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    +            
    3068class Func(Condition):
    +3069    """
    +3070    The base class for all function expressions.
     3071
    -3072        return cls(**args_dict)
    -3073
    -3074    @classmethod
    -3075    def sql_names(cls):
    -3076        if cls is Func:
    -3077            raise NotImplementedError(
    -3078                "SQL name is only supported by concrete function implementations"
    -3079            )
    -3080        if "_sql_names" not in cls.__dict__:
    -3081            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    -3082        return cls._sql_names
    -3083
    -3084    @classmethod
    -3085    def sql_name(cls):
    -3086        return cls.sql_names()[0]
    -3087
    -3088    @classmethod
    -3089    def default_parser_mappings(cls):
    -3090        return {name: cls.from_arg_list for name in cls.sql_names()}
    +3072    Attributes:
    +3073        is_var_len_args (bool): if set to True the last argument defined in arg_types will be
    +3074            treated as a variable length argument and the argument's value will be stored as a list.
    +3075        _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)
    +3076            for this function expression. These values are used to map this node to a name during parsing
    +3077            as well as to provide the function's name during SQL string generation. By default the SQL
    +3078            name is set to the expression's class name transformed to snake case.
    +3079    """
    +3080
    +3081    is_var_len_args = False
    +3082
    +3083    @classmethod
    +3084    def from_arg_list(cls, args):
    +3085        if cls.is_var_len_args:
    +3086            all_arg_keys = list(cls.arg_types)
    +3087            # If this function supports variable length argument treat the last argument as such.
    +3088            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    +3089            num_non_var = len(non_var_len_arg_keys)
    +3090
    +3091            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    +3092            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    +3093        else:
    +3094            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    +3095
    +3096        return cls(**args_dict)
    +3097
    +3098    @classmethod
    +3099    def sql_names(cls):
    +3100        if cls is Func:
    +3101            raise NotImplementedError(
    +3102                "SQL name is only supported by concrete function implementations"
    +3103            )
    +3104        if "_sql_names" not in cls.__dict__:
    +3105            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    +3106        return cls._sql_names
    +3107
    +3108    @classmethod
    +3109    def sql_name(cls):
    +3110        return cls.sql_names()[0]
    +3111
    +3112    @classmethod
    +3113    def default_parser_mappings(cls):
    +3114        return {name: cls.from_arg_list for name in cls.sql_names()}
     
    @@ -28701,20 +28909,20 @@ name is set to the expression's class name transformed to snake case.
    -
    3059    @classmethod
    -3060    def from_arg_list(cls, args):
    -3061        if cls.is_var_len_args:
    -3062            all_arg_keys = list(cls.arg_types)
    -3063            # If this function supports variable length argument treat the last argument as such.
    -3064            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    -3065            num_non_var = len(non_var_len_arg_keys)
    -3066
    -3067            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    -3068            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    -3069        else:
    -3070            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    -3071
    -3072        return cls(**args_dict)
    +            
    3083    @classmethod
    +3084    def from_arg_list(cls, args):
    +3085        if cls.is_var_len_args:
    +3086            all_arg_keys = list(cls.arg_types)
    +3087            # If this function supports variable length argument treat the last argument as such.
    +3088            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    +3089            num_non_var = len(non_var_len_arg_keys)
    +3090
    +3091            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    +3092            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    +3093        else:
    +3094            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    +3095
    +3096        return cls(**args_dict)
     
    @@ -28733,15 +28941,15 @@ name is set to the expression's class name transformed to snake case.
    -
    3074    @classmethod
    -3075    def sql_names(cls):
    -3076        if cls is Func:
    -3077            raise NotImplementedError(
    -3078                "SQL name is only supported by concrete function implementations"
    -3079            )
    -3080        if "_sql_names" not in cls.__dict__:
    -3081            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    -3082        return cls._sql_names
    +            
    3098    @classmethod
    +3099    def sql_names(cls):
    +3100        if cls is Func:
    +3101            raise NotImplementedError(
    +3102                "SQL name is only supported by concrete function implementations"
    +3103            )
    +3104        if "_sql_names" not in cls.__dict__:
    +3105            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    +3106        return cls._sql_names
     
    @@ -28760,9 +28968,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3084    @classmethod
    -3085    def sql_name(cls):
    -3086        return cls.sql_names()[0]
    +            
    3108    @classmethod
    +3109    def sql_name(cls):
    +3110        return cls.sql_names()[0]
     
    @@ -28781,9 +28989,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3088    @classmethod
    -3089    def default_parser_mappings(cls):
    -3090        return {name: cls.from_arg_list for name in cls.sql_names()}
    +            
    3112    @classmethod
    +3113    def default_parser_mappings(cls):
    +3114        return {name: cls.from_arg_list for name in cls.sql_names()}
     
    @@ -28851,8 +29059,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3093class AggFunc(Func):
    -3094    pass
    +            
    3117class AggFunc(Func):
    +3118    pass
     
    @@ -28926,8 +29134,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3097class Abs(Func):
    -3098    pass
    +            
    3121class Abs(Func):
    +3122    pass
     
    @@ -29001,9 +29209,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3101class Anonymous(Func):
    -3102    arg_types = {"this": True, "expressions": False}
    -3103    is_var_len_args = True
    +            
    3125class Anonymous(Func):
    +3126    arg_types = {"this": True, "expressions": False}
    +3127    is_var_len_args = True
     
    @@ -29077,8 +29285,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3106class ApproxDistinct(AggFunc):
    -3107    arg_types = {"this": True, "accuracy": False}
    +            
    3130class ApproxDistinct(AggFunc):
    +3131    arg_types = {"this": True, "accuracy": False}
     
    @@ -29152,9 +29360,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3110class Array(Func):
    -3111    arg_types = {"expressions": False}
    -3112    is_var_len_args = True
    +            
    3134class Array(Func):
    +3135    arg_types = {"expressions": False}
    +3136    is_var_len_args = True
     
    @@ -29228,8 +29436,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3115class GenerateSeries(Func):
    -3116    arg_types = {"start": True, "end": True, "step": False}
    +            
    3139class GenerateSeries(Func):
    +3140    arg_types = {"start": True, "end": True, "step": False}
     
    @@ -29303,8 +29511,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3119class ArrayAgg(AggFunc):
    -3120    pass
    +            
    3143class ArrayAgg(AggFunc):
    +3144    pass
     
    @@ -29378,8 +29586,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3123class ArrayAll(Func):
    -3124    arg_types = {"this": True, "expression": True}
    +            
    3147class ArrayAll(Func):
    +3148    arg_types = {"this": True, "expression": True}
     
    @@ -29453,8 +29661,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3127class ArrayAny(Func):
    -3128    arg_types = {"this": True, "expression": True}
    +            
    3151class ArrayAny(Func):
    +3152    arg_types = {"this": True, "expression": True}
     
    @@ -29528,9 +29736,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3131class ArrayConcat(Func):
    -3132    arg_types = {"this": True, "expressions": False}
    -3133    is_var_len_args = True
    +            
    3155class ArrayConcat(Func):
    +3156    arg_types = {"this": True, "expressions": False}
    +3157    is_var_len_args = True
     
    @@ -29604,8 +29812,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3136class ArrayContains(Func):
    -3137    arg_types = {"this": True, "expression": True}
    +            
    3160class ArrayContains(Func):
    +3161    arg_types = {"this": True, "expression": True}
     
    @@ -29679,9 +29887,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3140class ArrayFilter(Func):
    -3141    arg_types = {"this": True, "expression": True}
    -3142    _sql_names = ["FILTER", "ARRAY_FILTER"]
    +            
    3164class ArrayFilter(Func):
    +3165    arg_types = {"this": True, "expression": True}
    +3166    _sql_names = ["FILTER", "ARRAY_FILTER"]
     
    @@ -29755,8 +29963,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3145class ArrayJoin(Func):
    -3146    arg_types = {"this": True, "expression": True, "null": False}
    +            
    3169class ArrayJoin(Func):
    +3170    arg_types = {"this": True, "expression": True, "null": False}
     
    @@ -29830,8 +30038,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3149class ArraySize(Func):
    -3150    arg_types = {"this": True, "expression": False}
    +            
    3173class ArraySize(Func):
    +3174    arg_types = {"this": True, "expression": False}
     
    @@ -29905,8 +30113,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3153class ArraySort(Func):
    -3154    arg_types = {"this": True, "expression": False}
    +            
    3177class ArraySort(Func):
    +3178    arg_types = {"this": True, "expression": False}
     
    @@ -29980,8 +30188,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3157class ArraySum(Func):
    -3158    pass
    +            
    3181class ArraySum(Func):
    +3182    pass
     
    @@ -30055,8 +30263,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3161class ArrayUnionAgg(AggFunc):
    -3162    pass
    +            
    3185class ArrayUnionAgg(AggFunc):
    +3186    pass
     
    @@ -30130,8 +30338,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3165class Avg(AggFunc):
    -3166    pass
    +            
    3189class Avg(AggFunc):
    +3190    pass
     
    @@ -30205,8 +30413,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3169class AnyValue(AggFunc):
    -3170    pass
    +            
    3193class AnyValue(AggFunc):
    +3194    pass
     
    @@ -30280,8 +30488,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3173class Case(Func):
    -3174    arg_types = {"this": False, "ifs": True, "default": False}
    +            
    3197class Case(Func):
    +3198    arg_types = {"this": False, "ifs": True, "default": False}
     
    @@ -30355,23 +30563,23 @@ name is set to the expression's class name transformed to snake case.
    -
    3177class Cast(Func):
    -3178    arg_types = {"this": True, "to": True}
    -3179
    -3180    @property
    -3181    def name(self) -> str:
    -3182        return self.this.name
    -3183
    -3184    @property
    -3185    def to(self):
    -3186        return self.args["to"]
    -3187
    -3188    @property
    -3189    def output_name(self):
    -3190        return self.name
    -3191
    -3192    def is_type(self, dtype: DataType.Type) -> bool:
    -3193        return self.to.is_type(dtype)
    +            
    3201class Cast(Func):
    +3202    arg_types = {"this": True, "to": True}
    +3203
    +3204    @property
    +3205    def name(self) -> str:
    +3206        return self.this.name
    +3207
    +3208    @property
    +3209    def to(self):
    +3210        return self.args["to"]
    +3211
    +3212    @property
    +3213    def output_name(self):
    +3214        return self.name
    +3215
    +3216    def is_type(self, dtype: DataType.Type) -> bool:
    +3217        return self.to.is_type(dtype)
     
    @@ -30418,8 +30626,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3192    def is_type(self, dtype: DataType.Type) -> bool:
    -3193        return self.to.is_type(dtype)
    +            
    3216    def is_type(self, dtype: DataType.Type) -> bool:
    +3217        return self.to.is_type(dtype)
     
    @@ -30493,8 +30701,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3196class Collate(Binary):
    -3197    pass
    +            
    3220class Collate(Binary):
    +3221    pass
     
    @@ -30555,8 +30763,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3200class TryCast(Cast):
    -3201    pass
    +            
    3224class TryCast(Cast):
    +3225    pass
     
    @@ -30634,9 +30842,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3204class Ceil(Func):
    -3205    arg_types = {"this": True, "decimals": False}
    -3206    _sql_names = ["CEIL", "CEILING"]
    +            
    3228class Ceil(Func):
    +3229    arg_types = {"this": True, "decimals": False}
    +3230    _sql_names = ["CEIL", "CEILING"]
     
    @@ -30710,9 +30918,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3209class Coalesce(Func):
    -3210    arg_types = {"this": True, "expressions": False}
    -3211    is_var_len_args = True
    +            
    3233class Coalesce(Func):
    +3234    arg_types = {"this": True, "expressions": False}
    +3235    is_var_len_args = True
     
    @@ -30786,9 +30994,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3214class Concat(Func):
    -3215    arg_types = {"expressions": True}
    -3216    is_var_len_args = True
    +            
    3238class Concat(Func):
    +3239    arg_types = {"expressions": True}
    +3240    is_var_len_args = True
     
    @@ -30862,8 +31070,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3219class ConcatWs(Concat):
    -3220    _sql_names = ["CONCAT_WS"]
    +            
    3243class ConcatWs(Concat):
    +3244    _sql_names = ["CONCAT_WS"]
     
    @@ -30937,8 +31145,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3223class Count(AggFunc):
    -3224    arg_types = {"this": False}
    +            
    3247class Count(AggFunc):
    +3248    arg_types = {"this": False}
     
    @@ -31012,8 +31220,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3227class CurrentDate(Func):
    -3228    arg_types = {"this": False}
    +            
    3251class CurrentDate(Func):
    +3252    arg_types = {"this": False}
     
    @@ -31087,8 +31295,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3231class CurrentDatetime(Func):
    -3232    arg_types = {"this": False}
    +            
    3255class CurrentDatetime(Func):
    +3256    arg_types = {"this": False}
     
    @@ -31162,8 +31370,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3235class CurrentTime(Func):
    -3236    arg_types = {"this": False}
    +            
    3259class CurrentTime(Func):
    +3260    arg_types = {"this": False}
     
    @@ -31237,8 +31445,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3239class CurrentTimestamp(Func):
    -3240    arg_types = {"this": False}
    +            
    3263class CurrentTimestamp(Func):
    +3264    arg_types = {"this": False}
     
    @@ -31312,8 +31520,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3243class DateAdd(Func, TimeUnit):
    -3244    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3267class DateAdd(Func, TimeUnit):
    +3268    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31390,8 +31598,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3247class DateSub(Func, TimeUnit):
    -3248    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3271class DateSub(Func, TimeUnit):
    +3272    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31468,8 +31676,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3251class DateDiff(Func, TimeUnit):
    -3252    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3275class DateDiff(Func, TimeUnit):
    +3276    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31546,8 +31754,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3255class DateTrunc(Func):
    -3256    arg_types = {"unit": True, "this": True, "zone": False}
    +            
    3279class DateTrunc(Func):
    +3280    arg_types = {"unit": True, "this": True, "zone": False}
     
    @@ -31621,8 +31829,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3259class DatetimeAdd(Func, TimeUnit):
    -3260    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3283class DatetimeAdd(Func, TimeUnit):
    +3284    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31699,8 +31907,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3263class DatetimeSub(Func, TimeUnit):
    -3264    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3287class DatetimeSub(Func, TimeUnit):
    +3288    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31777,8 +31985,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3267class DatetimeDiff(Func, TimeUnit):
    -3268    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3291class DatetimeDiff(Func, TimeUnit):
    +3292    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31855,8 +32063,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3271class DatetimeTrunc(Func, TimeUnit):
    -3272    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3295class DatetimeTrunc(Func, TimeUnit):
    +3296    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -31933,8 +32141,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3275class DayOfWeek(Func):
    -3276    _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"]
    +            
    3299class DayOfWeek(Func):
    +3300    _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"]
     
    @@ -32008,8 +32216,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3279class DayOfMonth(Func):
    -3280    _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"]
    +            
    3303class DayOfMonth(Func):
    +3304    _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"]
     
    @@ -32083,8 +32291,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3283class DayOfYear(Func):
    -3284    _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"]
    +            
    3307class DayOfYear(Func):
    +3308    _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"]
     
    @@ -32158,8 +32366,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3287class WeekOfYear(Func):
    -3288    _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"]
    +            
    3311class WeekOfYear(Func):
    +3312    _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"]
     
    @@ -32233,8 +32441,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3291class LastDateOfMonth(Func):
    -3292    pass
    +            
    3315class LastDateOfMonth(Func):
    +3316    pass
     
    @@ -32308,8 +32516,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3295class Extract(Func):
    -3296    arg_types = {"this": True, "expression": True}
    +            
    3319class Extract(Func):
    +3320    arg_types = {"this": True, "expression": True}
     
    @@ -32383,8 +32591,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3299class TimestampAdd(Func, TimeUnit):
    -3300    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3323class TimestampAdd(Func, TimeUnit):
    +3324    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32461,8 +32669,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3303class TimestampSub(Func, TimeUnit):
    -3304    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3327class TimestampSub(Func, TimeUnit):
    +3328    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32539,8 +32747,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3307class TimestampDiff(Func, TimeUnit):
    -3308    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3331class TimestampDiff(Func, TimeUnit):
    +3332    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32617,8 +32825,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3311class TimestampTrunc(Func, TimeUnit):
    -3312    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3335class TimestampTrunc(Func, TimeUnit):
    +3336    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -32695,8 +32903,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3315class TimeAdd(Func, TimeUnit):
    -3316    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3339class TimeAdd(Func, TimeUnit):
    +3340    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32773,8 +32981,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3319class TimeSub(Func, TimeUnit):
    -3320    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3343class TimeSub(Func, TimeUnit):
    +3344    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32851,8 +33059,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3323class TimeDiff(Func, TimeUnit):
    -3324    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3347class TimeDiff(Func, TimeUnit):
    +3348    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32929,8 +33137,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3327class TimeTrunc(Func, TimeUnit):
    -3328    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3351class TimeTrunc(Func, TimeUnit):
    +3352    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -33007,9 +33215,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3331class DateFromParts(Func):
    -3332    _sql_names = ["DATEFROMPARTS"]
    -3333    arg_types = {"year": True, "month": True, "day": True}
    +            
    3355class DateFromParts(Func):
    +3356    _sql_names = ["DATEFROMPARTS"]
    +3357    arg_types = {"year": True, "month": True, "day": True}
     
    @@ -33083,8 +33291,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3336class DateStrToDate(Func):
    -3337    pass
    +            
    3360class DateStrToDate(Func):
    +3361    pass
     
    @@ -33158,8 +33366,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3340class DateToDateStr(Func):
    -3341    pass
    +            
    3364class DateToDateStr(Func):
    +3365    pass
     
    @@ -33233,8 +33441,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3344class DateToDi(Func):
    -3345    pass
    +            
    3368class DateToDi(Func):
    +3369    pass
     
    @@ -33308,8 +33516,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3348class Day(Func):
    -3349    pass
    +            
    3372class Day(Func):
    +3373    pass
     
    @@ -33383,8 +33591,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3352class Decode(Func):
    -3353    arg_types = {"this": True, "charset": True, "replace": False}
    +            
    3376class Decode(Func):
    +3377    arg_types = {"this": True, "charset": True, "replace": False}
     
    @@ -33458,8 +33666,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3356class DiToDate(Func):
    -3357    pass
    +            
    3380class DiToDate(Func):
    +3381    pass
     
    @@ -33533,8 +33741,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3360class Encode(Func):
    -3361    arg_types = {"this": True, "charset": True}
    +            
    3384class Encode(Func):
    +3385    arg_types = {"this": True, "charset": True}
     
    @@ -33608,8 +33816,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3364class Exp(Func):
    -3365    pass
    +            
    3388class Exp(Func):
    +3389    pass
     
    @@ -33683,8 +33891,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3368class Explode(Func):
    -3369    pass
    +            
    3392class Explode(Func):
    +3393    pass
     
    @@ -33758,8 +33966,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3372class Floor(Func):
    -3373    arg_types = {"this": True, "decimals": False}
    +            
    3396class Floor(Func):
    +3397    arg_types = {"this": True, "decimals": False}
     
    @@ -33833,9 +34041,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3376class Greatest(Func):
    -3377    arg_types = {"this": True, "expressions": False}
    -3378    is_var_len_args = True
    +            
    3400class Greatest(Func):
    +3401    arg_types = {"this": True, "expressions": False}
    +3402    is_var_len_args = True
     
    @@ -33909,8 +34117,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3381class GroupConcat(Func):
    -3382    arg_types = {"this": True, "separator": False}
    +            
    3405class GroupConcat(Func):
    +3406    arg_types = {"this": True, "separator": False}
     
    @@ -33984,8 +34192,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3385class Hex(Func):
    -3386    pass
    +            
    3409class Hex(Func):
    +3410    pass
     
    @@ -34059,8 +34267,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3389class If(Func):
    -3390    arg_types = {"this": True, "true": True, "false": False}
    +            
    3413class If(Func):
    +3414    arg_types = {"this": True, "true": True, "false": False}
     
    @@ -34134,9 +34342,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3393class IfNull(Func):
    -3394    arg_types = {"this": True, "expression": False}
    -3395    _sql_names = ["IFNULL", "NVL"]
    +            
    3417class IfNull(Func):
    +3418    arg_types = {"this": True, "expression": False}
    +3419    _sql_names = ["IFNULL", "NVL"]
     
    @@ -34210,8 +34418,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3398class Initcap(Func):
    -3399    pass
    +            
    3422class Initcap(Func):
    +3423    pass
     
    @@ -34285,8 +34493,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3402class JSONBContains(Binary):
    -3403    _sql_names = ["JSONB_CONTAINS"]
    +            
    3426class JSONBContains(Binary):
    +3427    _sql_names = ["JSONB_CONTAINS"]
     
    @@ -34347,8 +34555,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3406class JSONExtract(Binary, Func):
    -3407    _sql_names = ["JSON_EXTRACT"]
    +            
    3430class JSONExtract(Binary, Func):
    +3431    _sql_names = ["JSON_EXTRACT"]
     
    @@ -34422,8 +34630,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3410class JSONExtractScalar(JSONExtract):
    -3411    _sql_names = ["JSON_EXTRACT_SCALAR"]
    +            
    3434class JSONExtractScalar(JSONExtract):
    +3435    _sql_names = ["JSON_EXTRACT_SCALAR"]
     
    @@ -34497,8 +34705,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3414class JSONBExtract(JSONExtract):
    -3415    _sql_names = ["JSONB_EXTRACT"]
    +            
    3438class JSONBExtract(JSONExtract):
    +3439    _sql_names = ["JSONB_EXTRACT"]
     
    @@ -34572,8 +34780,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3418class JSONBExtractScalar(JSONExtract):
    -3419    _sql_names = ["JSONB_EXTRACT_SCALAR"]
    +            
    3442class JSONBExtractScalar(JSONExtract):
    +3443    _sql_names = ["JSONB_EXTRACT_SCALAR"]
     
    @@ -34647,9 +34855,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3422class Least(Func):
    -3423    arg_types = {"this": True, "expressions": False}
    -3424    is_var_len_args = True
    +            
    3446class Least(Func):
    +3447    arg_types = {"expressions": False}
    +3448    is_var_len_args = True
     
    @@ -34723,8 +34931,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3427class Length(Func):
    -3428    pass
    +            
    3451class Length(Func):
    +3452    pass
     
    @@ -34798,14 +35006,14 @@ name is set to the expression's class name transformed to snake case.
    -
    3431class Levenshtein(Func):
    -3432    arg_types = {
    -3433        "this": True,
    -3434        "expression": False,
    -3435        "ins_cost": False,
    -3436        "del_cost": False,
    -3437        "sub_cost": False,
    -3438    }
    +            
    3455class Levenshtein(Func):
    +3456    arg_types = {
    +3457        "this": True,
    +3458        "expression": False,
    +3459        "ins_cost": False,
    +3460        "del_cost": False,
    +3461        "sub_cost": False,
    +3462    }
     
    @@ -34879,8 +35087,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3441class Ln(Func):
    -3442    pass
    +            
    3465class Ln(Func):
    +3466    pass
     
    @@ -34954,8 +35162,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3445class Log(Func):
    -3446    arg_types = {"this": True, "expression": False}
    +            
    3469class Log(Func):
    +3470    arg_types = {"this": True, "expression": False}
     
    @@ -35029,8 +35237,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3449class Log2(Func):
    -3450    pass
    +            
    3473class Log2(Func):
    +3474    pass
     
    @@ -35104,8 +35312,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3453class Log10(Func):
    -3454    pass
    +            
    3477class Log10(Func):
    +3478    pass
     
    @@ -35179,8 +35387,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3457class LogicalOr(AggFunc):
    -3458    _sql_names = ["LOGICAL_OR", "BOOL_OR"]
    +            
    3481class LogicalOr(AggFunc):
    +3482    _sql_names = ["LOGICAL_OR", "BOOL_OR"]
     
    @@ -35254,8 +35462,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3461class Lower(Func):
    -3462    _sql_names = ["LOWER", "LCASE"]
    +            
    3485class Lower(Func):
    +3486    _sql_names = ["LOWER", "LCASE"]
     
    @@ -35329,8 +35537,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3465class Map(Func):
    -3466    arg_types = {"keys": False, "values": False}
    +            
    3489class Map(Func):
    +3490    arg_types = {"keys": False, "values": False}
     
    @@ -35404,9 +35612,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3469class VarMap(Func):
    -3470    arg_types = {"keys": True, "values": True}
    -3471    is_var_len_args = True
    +            
    3493class VarMap(Func):
    +3494    arg_types = {"keys": True, "values": True}
    +3495    is_var_len_args = True
     
    @@ -35480,14 +35688,14 @@ name is set to the expression's class name transformed to snake case.
    -
    3474class Matches(Func):
    -3475    """Oracle/Snowflake decode.
    -3476    https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm
    -3477    Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)
    -3478    """
    -3479
    -3480    arg_types = {"this": True, "expressions": True}
    -3481    is_var_len_args = True
    +            
    3498class Matches(Func):
    +3499    """Oracle/Snowflake decode.
    +3500    https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm
    +3501    Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)
    +3502    """
    +3503
    +3504    arg_types = {"this": True, "expressions": True}
    +3505    is_var_len_args = True
     
    @@ -35565,8 +35773,9 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3484class Max(AggFunc):
    -3485    arg_types = {"this": True, "expression": False}
    +            
    3508class Max(AggFunc):
    +3509    arg_types = {"this": True, "expressions": False}
    +3510    is_var_len_args = True
     
    @@ -35640,8 +35849,9 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3488class Min(AggFunc):
    -3489    arg_types = {"this": True, "expression": False}
    +            
    3513class Min(AggFunc):
    +3514    arg_types = {"this": True, "expressions": False}
    +3515    is_var_len_args = True
     
    @@ -35715,8 +35925,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3492class Month(Func):
    -3493    pass
    +            
    3518class Month(Func):
    +3519    pass
     
    @@ -35790,8 +36000,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3496class Nvl2(Func):
    -3497    arg_types = {"this": True, "true": True, "false": False}
    +            
    3522class Nvl2(Func):
    +3523    arg_types = {"this": True, "true": True, "false": False}
     
    @@ -35865,8 +36075,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3500class Posexplode(Func):
    -3501    pass
    +            
    3526class Posexplode(Func):
    +3527    pass
     
    @@ -35940,8 +36150,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3504class Pow(Binary, Func):
    -3505    _sql_names = ["POWER", "POW"]
    +            
    3530class Pow(Binary, Func):
    +3531    _sql_names = ["POWER", "POW"]
     
    @@ -36015,8 +36225,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3508class PercentileCont(AggFunc):
    -3509    pass
    +            
    3534class PercentileCont(AggFunc):
    +3535    pass
     
    @@ -36090,8 +36300,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3512class PercentileDisc(AggFunc):
    -3513    pass
    +            
    3538class PercentileDisc(AggFunc):
    +3539    pass
     
    @@ -36165,8 +36375,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3516class Quantile(AggFunc):
    -3517    arg_types = {"this": True, "quantile": True}
    +            
    3542class Quantile(AggFunc):
    +3543    arg_types = {"this": True, "quantile": True}
     
    @@ -36240,8 +36450,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3522class Quantiles(AggFunc):
    -3523    arg_types = {"parameters": True, "expressions": True}
    +            
    3548class Quantiles(AggFunc):
    +3549    arg_types = {"parameters": True, "expressions": True}
     
    @@ -36315,8 +36525,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3526class QuantileIf(AggFunc):
    -3527    arg_types = {"parameters": True, "expressions": True}
    +            
    3552class QuantileIf(AggFunc):
    +3553    arg_types = {"parameters": True, "expressions": True}
     
    @@ -36390,8 +36600,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3530class ApproxQuantile(Quantile):
    -3531    arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False}
    +            
    3556class ApproxQuantile(Quantile):
    +3557    arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False}
     
    @@ -36465,8 +36675,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3534class RangeN(Func):
    -3535    arg_types = {"this": True, "expressions": True, "each": False}
    +            
    3560class RangeN(Func):
    +3561    arg_types = {"this": True, "expressions": True, "each": False}
     
    @@ -36540,10 +36750,10 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3538class ReadCSV(Func):
    -3539    _sql_names = ["READ_CSV"]
    -3540    is_var_len_args = True
    -3541    arg_types = {"this": True, "expressions": False}
    +            
    3564class ReadCSV(Func):
    +3565    _sql_names = ["READ_CSV"]
    +3566    is_var_len_args = True
    +3567    arg_types = {"this": True, "expressions": False}
     
    @@ -36617,8 +36827,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3544class Reduce(Func):
    -3545    arg_types = {"this": True, "initial": True, "merge": True, "finish": False}
    +            
    3570class Reduce(Func):
    +3571    arg_types = {"this": True, "initial": True, "merge": True, "finish": False}
     
    @@ -36692,14 +36902,14 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3548class RegexpExtract(Func):
    -3549    arg_types = {
    -3550        "this": True,
    -3551        "expression": True,
    -3552        "position": False,
    -3553        "occurrence": False,
    -3554        "group": False,
    -3555    }
    +            
    3574class RegexpExtract(Func):
    +3575    arg_types = {
    +3576        "this": True,
    +3577        "expression": True,
    +3578        "position": False,
    +3579        "occurrence": False,
    +3580        "group": False,
    +3581    }
     
    @@ -36773,8 +36983,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3558class RegexpLike(Func):
    -3559    arg_types = {"this": True, "expression": True, "flag": False}
    +            
    3584class RegexpLike(Func):
    +3585    arg_types = {"this": True, "expression": True, "flag": False}
     
    @@ -36848,8 +37058,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3562class RegexpILike(Func):
    -3563    arg_types = {"this": True, "expression": True, "flag": False}
    +            
    3588class RegexpILike(Func):
    +3589    arg_types = {"this": True, "expression": True, "flag": False}
     
    @@ -36923,8 +37133,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3566class RegexpSplit(Func):
    -3567    arg_types = {"this": True, "expression": True}
    +            
    3592class RegexpSplit(Func):
    +3593    arg_types = {"this": True, "expression": True}
     
    @@ -36998,8 +37208,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3570class Repeat(Func):
    -3571    arg_types = {"this": True, "times": True}
    +            
    3596class Repeat(Func):
    +3597    arg_types = {"this": True, "times": True}
     
    @@ -37073,8 +37283,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3574class Round(Func):
    -3575    arg_types = {"this": True, "decimals": False}
    +            
    3600class Round(Func):
    +3601    arg_types = {"this": True, "decimals": False}
     
    @@ -37148,8 +37358,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3578class RowNumber(Func):
    -3579    arg_types: t.Dict[str, t.Any] = {}
    +            
    3604class RowNumber(Func):
    +3605    arg_types: t.Dict[str, t.Any] = {}
     
    @@ -37223,8 +37433,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3582class SafeDivide(Func):
    -3583    arg_types = {"this": True, "expression": True}
    +            
    3608class SafeDivide(Func):
    +3609    arg_types = {"this": True, "expression": True}
     
    @@ -37298,8 +37508,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3586class SetAgg(AggFunc):
    -3587    pass
    +            
    3612class SetAgg(AggFunc):
    +3613    pass
     
    @@ -37373,8 +37583,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3590class SortArray(Func):
    -3591    arg_types = {"this": True, "asc": False}
    +            
    3616class SortArray(Func):
    +3617    arg_types = {"this": True, "asc": False}
     
    @@ -37448,8 +37658,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3594class Split(Func):
    -3595    arg_types = {"this": True, "expression": True, "limit": False}
    +            
    3620class Split(Func):
    +3621    arg_types = {"this": True, "expression": True, "limit": False}
     
    @@ -37523,8 +37733,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3600class Substring(Func):
    -3601    arg_types = {"this": True, "start": False, "length": False}
    +            
    3626class Substring(Func):
    +3627    arg_types = {"this": True, "start": False, "length": False}
     
    @@ -37598,13 +37808,13 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3604class StrPosition(Func):
    -3605    arg_types = {
    -3606        "this": True,
    -3607        "substr": True,
    -3608        "position": False,
    -3609        "instance": False,
    -3610    }
    +            
    3630class StrPosition(Func):
    +3631    arg_types = {
    +3632        "this": True,
    +3633        "substr": True,
    +3634        "position": False,
    +3635        "instance": False,
    +3636    }
     
    @@ -37678,8 +37888,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3613class StrToDate(Func):
    -3614    arg_types = {"this": True, "format": True}
    +            
    3639class StrToDate(Func):
    +3640    arg_types = {"this": True, "format": True}
     
    @@ -37753,8 +37963,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3617class StrToTime(Func):
    -3618    arg_types = {"this": True, "format": True}
    +            
    3643class StrToTime(Func):
    +3644    arg_types = {"this": True, "format": True}
     
    @@ -37828,8 +38038,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3623class StrToUnix(Func):
    -3624    arg_types = {"this": False, "format": False}
    +            
    3649class StrToUnix(Func):
    +3650    arg_types = {"this": False, "format": False}
     
    @@ -37903,8 +38113,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3627class NumberToStr(Func):
    -3628    arg_types = {"this": True, "format": True}
    +            
    3653class NumberToStr(Func):
    +3654    arg_types = {"this": True, "format": True}
     
    @@ -37978,9 +38188,9 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3631class Struct(Func):
    -3632    arg_types = {"expressions": True}
    -3633    is_var_len_args = True
    +            
    3657class Struct(Func):
    +3658    arg_types = {"expressions": True}
    +3659    is_var_len_args = True
     
    @@ -38054,8 +38264,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3636class StructExtract(Func):
    -3637    arg_types = {"this": True, "expression": True}
    +            
    3662class StructExtract(Func):
    +3663    arg_types = {"this": True, "expression": True}
     
    @@ -38129,8 +38339,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3640class Sum(AggFunc):
    -3641    pass
    +            
    3666class Sum(AggFunc):
    +3667    pass
     
    @@ -38204,8 +38414,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3644class Sqrt(Func):
    -3645    pass
    +            
    3670class Sqrt(Func):
    +3671    pass
     
    @@ -38279,8 +38489,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3648class Stddev(AggFunc):
    -3649    pass
    +            
    3674class Stddev(AggFunc):
    +3675    pass
     
    @@ -38354,8 +38564,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3652class StddevPop(AggFunc):
    -3653    pass
    +            
    3678class StddevPop(AggFunc):
    +3679    pass
     
    @@ -38429,8 +38639,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3656class StddevSamp(AggFunc):
    -3657    pass
    +            
    3682class StddevSamp(AggFunc):
    +3683    pass
     
    @@ -38504,8 +38714,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3660class TimeToStr(Func):
    -3661    arg_types = {"this": True, "format": True}
    +            
    3686class TimeToStr(Func):
    +3687    arg_types = {"this": True, "format": True}
     
    @@ -38579,8 +38789,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3664class TimeToTimeStr(Func):
    -3665    pass
    +            
    3690class TimeToTimeStr(Func):
    +3691    pass
     
    @@ -38654,8 +38864,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3668class TimeToUnix(Func):
    -3669    pass
    +            
    3694class TimeToUnix(Func):
    +3695    pass
     
    @@ -38729,8 +38939,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3672class TimeStrToDate(Func):
    -3673    pass
    +            
    3698class TimeStrToDate(Func):
    +3699    pass
     
    @@ -38804,8 +39014,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3676class TimeStrToTime(Func):
    -3677    pass
    +            
    3702class TimeStrToTime(Func):
    +3703    pass
     
    @@ -38879,8 +39089,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3680class TimeStrToUnix(Func):
    -3681    pass
    +            
    3706class TimeStrToUnix(Func):
    +3707    pass
     
    @@ -38954,13 +39164,13 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3684class Trim(Func):
    -3685    arg_types = {
    -3686        "this": True,
    -3687        "expression": False,
    -3688        "position": False,
    -3689        "collation": False,
    -3690    }
    +            
    3710class Trim(Func):
    +3711    arg_types = {
    +3712        "this": True,
    +3713        "expression": False,
    +3714        "position": False,
    +3715        "collation": False,
    +3716    }
     
    @@ -39034,8 +39244,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3693class TsOrDsAdd(Func, TimeUnit):
    -3694    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3719class TsOrDsAdd(Func, TimeUnit):
    +3720    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -39112,8 +39322,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3697class TsOrDsToDateStr(Func):
    -3698    pass
    +            
    3723class TsOrDsToDateStr(Func):
    +3724    pass
     
    @@ -39187,8 +39397,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3701class TsOrDsToDate(Func):
    -3702    arg_types = {"this": True, "format": False}
    +            
    3727class TsOrDsToDate(Func):
    +3728    arg_types = {"this": True, "format": False}
     
    @@ -39262,8 +39472,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3705class TsOrDiToDi(Func):
    -3706    pass
    +            
    3731class TsOrDiToDi(Func):
    +3732    pass
     
    @@ -39337,8 +39547,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3709class Unhex(Func):
    -3710    pass
    +            
    3735class Unhex(Func):
    +3736    pass
     
    @@ -39412,8 +39622,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3713class UnixToStr(Func):
    -3714    arg_types = {"this": True, "format": False}
    +            
    3739class UnixToStr(Func):
    +3740    arg_types = {"this": True, "format": False}
     
    @@ -39487,12 +39697,12 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3719class UnixToTime(Func):
    -3720    arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False}
    -3721
    -3722    SECONDS = Literal.string("seconds")
    -3723    MILLIS = Literal.string("millis")
    -3724    MICROS = Literal.string("micros")
    +            
    3745class UnixToTime(Func):
    +3746    arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False}
    +3747
    +3748    SECONDS = Literal.string("seconds")
    +3749    MILLIS = Literal.string("millis")
    +3750    MICROS = Literal.string("micros")
     
    @@ -39566,8 +39776,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3727class UnixToTimeStr(Func):
    -3728    pass
    +            
    3753class UnixToTimeStr(Func):
    +3754    pass
     
    @@ -39641,8 +39851,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3731class Upper(Func):
    -3732    _sql_names = ["UPPER", "UCASE"]
    +            
    3757class Upper(Func):
    +3758    _sql_names = ["UPPER", "UCASE"]
     
    @@ -39716,8 +39926,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3735class Variance(AggFunc):
    -3736    _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"]
    +            
    3761class Variance(AggFunc):
    +3762    _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"]
     
    @@ -39791,8 +40001,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3739class VariancePop(AggFunc):
    -3740    _sql_names = ["VARIANCE_POP", "VAR_POP"]
    +            
    3765class VariancePop(AggFunc):
    +3766    _sql_names = ["VARIANCE_POP", "VAR_POP"]
     
    @@ -39866,8 +40076,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3743class Week(Func):
    -3744    arg_types = {"this": True, "mode": False}
    +            
    3769class Week(Func):
    +3770    arg_types = {"this": True, "mode": False}
     
    @@ -39941,8 +40151,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3747class XMLTable(Func):
    -3748    arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False}
    +            
    3773class XMLTable(Func):
    +3774    arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False}
     
    @@ -40016,8 +40226,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3751class Year(Func):
    -3752    pass
    +            
    3777class Year(Func):
    +3778    pass
     
    @@ -40091,8 +40301,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3755class Use(Expression):
    -3756    arg_types = {"this": True, "kind": False}
    +            
    3781class Use(Expression):
    +3782    arg_types = {"this": True, "kind": False}
     
    @@ -40153,8 +40363,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3759class Merge(Expression):
    -3760    arg_types = {"this": True, "using": True, "on": True, "expressions": True}
    +            
    3785class Merge(Expression):
    +3786    arg_types = {"this": True, "using": True, "on": True, "expressions": True}
     
    @@ -40215,8 +40425,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3763class When(Func):
    -3764    arg_types = {"this": True, "then": True}
    +            
    3789class When(Func):
    +3790    arg_types = {"matched": True, "source": False, "condition": False, "then": True}
     
    @@ -40290,48 +40500,48 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3792def maybe_parse(
    -3793    sql_or_expression: str | Expression,
    -3794    *,
    -3795    into: t.Optional[IntoType] = None,
    -3796    dialect: DialectType = None,
    -3797    prefix: t.Optional[str] = None,
    -3798    copy: bool = False,
    -3799    **opts,
    -3800) -> Expression:
    -3801    """Gracefully handle a possible string or expression.
    -3802
    -3803    Example:
    -3804        >>> maybe_parse("1")
    -3805        (LITERAL this: 1, is_string: False)
    -3806        >>> maybe_parse(to_identifier("x"))
    -3807        (IDENTIFIER this: x, quoted: False)
    -3808
    -3809    Args:
    -3810        sql_or_expression: the SQL code string or an expression
    -3811        into: the SQLGlot Expression to parse into
    -3812        dialect: the dialect used to parse the input expressions (in the case that an
    -3813            input expression is a SQL string).
    -3814        prefix: a string to prefix the sql with before it gets parsed
    -3815            (automatically includes a space)
    -3816        copy: whether or not to copy the expression.
    -3817        **opts: other options to use to parse the input expressions (again, in the case
    -3818            that an input expression is a SQL string).
    -3819
    -3820    Returns:
    -3821        Expression: the parsed or given expression.
    -3822    """
    -3823    if isinstance(sql_or_expression, Expression):
    -3824        if copy:
    -3825            return sql_or_expression.copy()
    -3826        return sql_or_expression
    -3827
    -3828    import sqlglot
    -3829
    -3830    sql = str(sql_or_expression)
    -3831    if prefix:
    -3832        sql = f"{prefix} {sql}"
    -3833    return sqlglot.parse_one(sql, read=dialect, into=into, **opts)
    +            
    3818def maybe_parse(
    +3819    sql_or_expression: str | Expression,
    +3820    *,
    +3821    into: t.Optional[IntoType] = None,
    +3822    dialect: DialectType = None,
    +3823    prefix: t.Optional[str] = None,
    +3824    copy: bool = False,
    +3825    **opts,
    +3826) -> Expression:
    +3827    """Gracefully handle a possible string or expression.
    +3828
    +3829    Example:
    +3830        >>> maybe_parse("1")
    +3831        (LITERAL this: 1, is_string: False)
    +3832        >>> maybe_parse(to_identifier("x"))
    +3833        (IDENTIFIER this: x, quoted: False)
    +3834
    +3835    Args:
    +3836        sql_or_expression: the SQL code string or an expression
    +3837        into: the SQLGlot Expression to parse into
    +3838        dialect: the dialect used to parse the input expressions (in the case that an
    +3839            input expression is a SQL string).
    +3840        prefix: a string to prefix the sql with before it gets parsed
    +3841            (automatically includes a space)
    +3842        copy: whether or not to copy the expression.
    +3843        **opts: other options to use to parse the input expressions (again, in the case
    +3844            that an input expression is a SQL string).
    +3845
    +3846    Returns:
    +3847        Expression: the parsed or given expression.
    +3848    """
    +3849    if isinstance(sql_or_expression, Expression):
    +3850        if copy:
    +3851            return sql_or_expression.copy()
    +3852        return sql_or_expression
    +3853
    +3854    import sqlglot
    +3855
    +3856    sql = str(sql_or_expression)
    +3857    if prefix:
    +3858        sql = f"{prefix} {sql}"
    +3859    return sqlglot.parse_one(sql, read=dialect, into=into, **opts)
     
    @@ -40383,29 +40593,29 @@ that an input expression is a SQL string).
    -
    3979def union(left, right, distinct=True, dialect=None, **opts):
    -3980    """
    -3981    Initializes a syntax tree from one UNION expression.
    -3982
    -3983    Example:
    -3984        >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()
    -3985        'SELECT * FROM foo UNION SELECT * FROM bla'
    -3986
    -3987    Args:
    -3988        left (str | Expression): the SQL code string corresponding to the left-hand side.
    -3989            If an `Expression` instance is passed, it will be used as-is.
    -3990        right (str | Expression): the SQL code string corresponding to the right-hand side.
    -3991            If an `Expression` instance is passed, it will be used as-is.
    -3992        distinct (bool): set the DISTINCT flag if and only if this is true.
    -3993        dialect (str): the dialect used to parse the input expression.
    -3994        opts (kwargs): other options to use to parse the input expressions.
    -3995    Returns:
    -3996        Union: the syntax tree for the UNION expression.
    -3997    """
    -3998    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    -3999    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    -4000
    -4001    return Union(this=left, expression=right, distinct=distinct)
    +            
    4005def union(left, right, distinct=True, dialect=None, **opts):
    +4006    """
    +4007    Initializes a syntax tree from one UNION expression.
    +4008
    +4009    Example:
    +4010        >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4011        'SELECT * FROM foo UNION SELECT * FROM bla'
    +4012
    +4013    Args:
    +4014        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4015            If an `Expression` instance is passed, it will be used as-is.
    +4016        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4017            If an `Expression` instance is passed, it will be used as-is.
    +4018        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4019        dialect (str): the dialect used to parse the input expression.
    +4020        opts (kwargs): other options to use to parse the input expressions.
    +4021    Returns:
    +4022        Union: the syntax tree for the UNION expression.
    +4023    """
    +4024    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4025    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4026
    +4027    return Union(this=left, expression=right, distinct=distinct)
     
    @@ -40453,29 +40663,29 @@ If an Expression instance is passed, it w
    -
    4004def intersect(left, right, distinct=True, dialect=None, **opts):
    -4005    """
    -4006    Initializes a syntax tree from one INTERSECT expression.
    -4007
    -4008    Example:
    -4009        >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()
    -4010        'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    -4011
    -4012    Args:
    -4013        left (str | Expression): the SQL code string corresponding to the left-hand side.
    -4014            If an `Expression` instance is passed, it will be used as-is.
    -4015        right (str | Expression): the SQL code string corresponding to the right-hand side.
    -4016            If an `Expression` instance is passed, it will be used as-is.
    -4017        distinct (bool): set the DISTINCT flag if and only if this is true.
    -4018        dialect (str): the dialect used to parse the input expression.
    -4019        opts (kwargs): other options to use to parse the input expressions.
    -4020    Returns:
    -4021        Intersect: the syntax tree for the INTERSECT expression.
    -4022    """
    -4023    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    -4024    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    -4025
    -4026    return Intersect(this=left, expression=right, distinct=distinct)
    +            
    4030def intersect(left, right, distinct=True, dialect=None, **opts):
    +4031    """
    +4032    Initializes a syntax tree from one INTERSECT expression.
    +4033
    +4034    Example:
    +4035        >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4036        'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    +4037
    +4038    Args:
    +4039        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4040            If an `Expression` instance is passed, it will be used as-is.
    +4041        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4042            If an `Expression` instance is passed, it will be used as-is.
    +4043        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4044        dialect (str): the dialect used to parse the input expression.
    +4045        opts (kwargs): other options to use to parse the input expressions.
    +4046    Returns:
    +4047        Intersect: the syntax tree for the INTERSECT expression.
    +4048    """
    +4049    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4050    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4051
    +4052    return Intersect(this=left, expression=right, distinct=distinct)
     
    @@ -40523,29 +40733,29 @@ If an Expression instance is passed, it w
    -
    4029def except_(left, right, distinct=True, dialect=None, **opts):
    -4030    """
    -4031    Initializes a syntax tree from one EXCEPT expression.
    -4032
    -4033    Example:
    -4034        >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()
    -4035        'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    -4036
    -4037    Args:
    -4038        left (str | Expression): the SQL code string corresponding to the left-hand side.
    -4039            If an `Expression` instance is passed, it will be used as-is.
    -4040        right (str | Expression): the SQL code string corresponding to the right-hand side.
    -4041            If an `Expression` instance is passed, it will be used as-is.
    -4042        distinct (bool): set the DISTINCT flag if and only if this is true.
    -4043        dialect (str): the dialect used to parse the input expression.
    -4044        opts (kwargs): other options to use to parse the input expressions.
    -4045    Returns:
    -4046        Except: the syntax tree for the EXCEPT statement.
    -4047    """
    -4048    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    -4049    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    -4050
    -4051    return Except(this=left, expression=right, distinct=distinct)
    +            
    4055def except_(left, right, distinct=True, dialect=None, **opts):
    +4056    """
    +4057    Initializes a syntax tree from one EXCEPT expression.
    +4058
    +4059    Example:
    +4060        >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4061        'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    +4062
    +4063    Args:
    +4064        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4065            If an `Expression` instance is passed, it will be used as-is.
    +4066        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4067            If an `Expression` instance is passed, it will be used as-is.
    +4068        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4069        dialect (str): the dialect used to parse the input expression.
    +4070        opts (kwargs): other options to use to parse the input expressions.
    +4071    Returns:
    +4072        Except: the syntax tree for the EXCEPT statement.
    +4073    """
    +4074    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4075    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4076
    +4077    return Except(this=left, expression=right, distinct=distinct)
     
    @@ -40593,26 +40803,26 @@ If an Expression instance is passed, it w
    -
    4054def select(*expressions: str | Expression, dialect: DialectType = None, **opts) -> Select:
    -4055    """
    -4056    Initializes a syntax tree from one or multiple SELECT expressions.
    -4057
    -4058    Example:
    -4059        >>> select("col1", "col2").from_("tbl").sql()
    -4060        'SELECT col1, col2 FROM tbl'
    -4061
    -4062    Args:
    -4063        *expressions: the SQL code string to parse as the expressions of a
    -4064            SELECT statement. If an Expression instance is passed, this is used as-is.
    -4065        dialect: the dialect used to parse the input expressions (in the case that an
    -4066            input expression is a SQL string).
    -4067        **opts: other options to use to parse the input expressions (again, in the case
    -4068            that an input expression is a SQL string).
    -4069
    -4070    Returns:
    -4071        Select: the syntax tree for the SELECT statement.
    -4072    """
    -4073    return Select().select(*expressions, dialect=dialect, **opts)
    +            
    4080def select(*expressions: str | Expression, dialect: DialectType = None, **opts) -> Select:
    +4081    """
    +4082    Initializes a syntax tree from one or multiple SELECT expressions.
    +4083
    +4084    Example:
    +4085        >>> select("col1", "col2").from_("tbl").sql()
    +4086        'SELECT col1, col2 FROM tbl'
    +4087
    +4088    Args:
    +4089        *expressions: the SQL code string to parse as the expressions of a
    +4090            SELECT statement. If an Expression instance is passed, this is used as-is.
    +4091        dialect: the dialect used to parse the input expressions (in the case that an
    +4092            input expression is a SQL string).
    +4093        **opts: other options to use to parse the input expressions (again, in the case
    +4094            that an input expression is a SQL string).
    +4095
    +4096    Returns:
    +4097        Select: the syntax tree for the SELECT statement.
    +4098    """
    +4099    return Select().select(*expressions, dialect=dialect, **opts)
     
    @@ -40659,26 +40869,26 @@ that an input expression is a SQL string).
    -
    4076def from_(*expressions, dialect=None, **opts) -> Select:
    -4077    """
    -4078    Initializes a syntax tree from a FROM expression.
    -4079
    -4080    Example:
    -4081        >>> from_("tbl").select("col1", "col2").sql()
    -4082        'SELECT col1, col2 FROM tbl'
    -4083
    -4084    Args:
    -4085        *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a
    -4086            SELECT statement. If an Expression instance is passed, this is used as-is.
    -4087        dialect (str): the dialect used to parse the input expression (in the case that the
    -4088            input expression is a SQL string).
    -4089        **opts: other options to use to parse the input expressions (again, in the case
    -4090            that the input expression is a SQL string).
    -4091
    -4092    Returns:
    -4093        Select: the syntax tree for the SELECT statement.
    -4094    """
    -4095    return Select().from_(*expressions, dialect=dialect, **opts)
    +            
    4102def from_(*expressions, dialect=None, **opts) -> Select:
    +4103    """
    +4104    Initializes a syntax tree from a FROM expression.
    +4105
    +4106    Example:
    +4107        >>> from_("tbl").select("col1", "col2").sql()
    +4108        'SELECT col1, col2 FROM tbl'
    +4109
    +4110    Args:
    +4111        *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a
    +4112            SELECT statement. If an Expression instance is passed, this is used as-is.
    +4113        dialect (str): the dialect used to parse the input expression (in the case that the
    +4114            input expression is a SQL string).
    +4115        **opts: other options to use to parse the input expressions (again, in the case
    +4116            that the input expression is a SQL string).
    +4117
    +4118    Returns:
    +4119        Select: the syntax tree for the SELECT statement.
    +4120    """
    +4121    return Select().from_(*expressions, dialect=dialect, **opts)
     
    @@ -40725,46 +40935,46 @@ that the input expression is a SQL string).
    -
    4098def update(table, properties, where=None, from_=None, dialect=None, **opts) -> Update:
    -4099    """
    -4100    Creates an update statement.
    -4101
    -4102    Example:
    -4103        >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()
    -4104        "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"
    -4105
    -4106    Args:
    -4107        *properties (Dict[str, Any]): dictionary of properties to set which are
    -4108            auto converted to sql objects eg None -> NULL
    -4109        where (str): sql conditional parsed into a WHERE statement
    -4110        from_ (str): sql statement parsed into a FROM statement
    -4111        dialect (str): the dialect used to parse the input expressions.
    -4112        **opts: other options to use to parse the input expressions.
    -4113
    -4114    Returns:
    -4115        Update: the syntax tree for the UPDATE statement.
    -4116    """
    -4117    update = Update(this=maybe_parse(table, into=Table, dialect=dialect))
    -4118    update.set(
    -4119        "expressions",
    -4120        [
    -4121            EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v))
    -4122            for k, v in properties.items()
    -4123        ],
    -4124    )
    -4125    if from_:
    -4126        update.set(
    -4127            "from",
    -4128            maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts),
    -4129        )
    -4130    if isinstance(where, Condition):
    -4131        where = Where(this=where)
    -4132    if where:
    -4133        update.set(
    -4134            "where",
    -4135            maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    -4136        )
    -4137    return update
    +            
    4124def update(table, properties, where=None, from_=None, dialect=None, **opts) -> Update:
    +4125    """
    +4126    Creates an update statement.
    +4127
    +4128    Example:
    +4129        >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()
    +4130        "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"
    +4131
    +4132    Args:
    +4133        *properties (Dict[str, Any]): dictionary of properties to set which are
    +4134            auto converted to sql objects eg None -> NULL
    +4135        where (str): sql conditional parsed into a WHERE statement
    +4136        from_ (str): sql statement parsed into a FROM statement
    +4137        dialect (str): the dialect used to parse the input expressions.
    +4138        **opts: other options to use to parse the input expressions.
    +4139
    +4140    Returns:
    +4141        Update: the syntax tree for the UPDATE statement.
    +4142    """
    +4143    update = Update(this=maybe_parse(table, into=Table, dialect=dialect))
    +4144    update.set(
    +4145        "expressions",
    +4146        [
    +4147            EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v))
    +4148            for k, v in properties.items()
    +4149        ],
    +4150    )
    +4151    if from_:
    +4152        update.set(
    +4153            "from",
    +4154            maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts),
    +4155        )
    +4156    if isinstance(where, Condition):
    +4157        where = Where(this=where)
    +4158    if where:
    +4159        update.set(
    +4160            "where",
    +4161            maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    +4162        )
    +4163    return update
     
    @@ -40811,28 +41021,28 @@ auto converted to sql objects eg None -> NULL
    -
    4140def delete(table, where=None, dialect=None, **opts) -> Delete:
    -4141    """
    -4142    Builds a delete statement.
    -4143
    -4144    Example:
    -4145        >>> delete("my_table", where="id > 1").sql()
    -4146        'DELETE FROM my_table WHERE id > 1'
    -4147
    -4148    Args:
    -4149        where (str|Condition): sql conditional parsed into a WHERE statement
    -4150        dialect (str): the dialect used to parse the input expressions.
    -4151        **opts: other options to use to parse the input expressions.
    -4152
    -4153    Returns:
    -4154        Delete: the syntax tree for the DELETE statement.
    -4155    """
    -4156    return Delete(
    -4157        this=maybe_parse(table, into=Table, dialect=dialect, **opts),
    -4158        where=Where(this=where)
    -4159        if isinstance(where, Condition)
    -4160        else maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    -4161    )
    +            
    4166def delete(table, where=None, dialect=None, **opts) -> Delete:
    +4167    """
    +4168    Builds a delete statement.
    +4169
    +4170    Example:
    +4171        >>> delete("my_table", where="id > 1").sql()
    +4172        'DELETE FROM my_table WHERE id > 1'
    +4173
    +4174    Args:
    +4175        where (str|Condition): sql conditional parsed into a WHERE statement
    +4176        dialect (str): the dialect used to parse the input expressions.
    +4177        **opts: other options to use to parse the input expressions.
    +4178
    +4179    Returns:
    +4180        Delete: the syntax tree for the DELETE statement.
    +4181    """
    +4182    return Delete(
    +4183        this=maybe_parse(table, into=Table, dialect=dialect, **opts),
    +4184        where=Where(this=where)
    +4185        if isinstance(where, Condition)
    +4186        else maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    +4187    )
     
    @@ -40876,37 +41086,37 @@ auto converted to sql objects eg None -> NULL
    -
    4164def condition(expression, dialect=None, **opts) -> Condition:
    -4165    """
    -4166    Initialize a logical condition expression.
    -4167
    -4168    Example:
    -4169        >>> condition("x=1").sql()
    -4170        'x = 1'
    -4171
    -4172        This is helpful for composing larger logical syntax trees:
    -4173        >>> where = condition("x=1")
    -4174        >>> where = where.and_("y=1")
    -4175        >>> Select().from_("tbl").select("*").where(where).sql()
    -4176        'SELECT * FROM tbl WHERE x = 1 AND y = 1'
    -4177
    -4178    Args:
    -4179        *expression (str | Expression): the SQL code string to parse.
    -4180            If an Expression instance is passed, this is used as-is.
    -4181        dialect (str): the dialect used to parse the input expression (in the case that the
    -4182            input expression is a SQL string).
    -4183        **opts: other options to use to parse the input expressions (again, in the case
    -4184            that the input expression is a SQL string).
    -4185
    -4186    Returns:
    -4187        Condition: the expression
    -4188    """
    -4189    return maybe_parse(  # type: ignore
    -4190        expression,
    -4191        into=Condition,
    -4192        dialect=dialect,
    -4193        **opts,
    -4194    )
    +            
    4190def condition(expression, dialect=None, **opts) -> Condition:
    +4191    """
    +4192    Initialize a logical condition expression.
    +4193
    +4194    Example:
    +4195        >>> condition("x=1").sql()
    +4196        'x = 1'
    +4197
    +4198        This is helpful for composing larger logical syntax trees:
    +4199        >>> where = condition("x=1")
    +4200        >>> where = where.and_("y=1")
    +4201        >>> Select().from_("tbl").select("*").where(where).sql()
    +4202        'SELECT * FROM tbl WHERE x = 1 AND y = 1'
    +4203
    +4204    Args:
    +4205        *expression (str | Expression): the SQL code string to parse.
    +4206            If an Expression instance is passed, this is used as-is.
    +4207        dialect (str): the dialect used to parse the input expression (in the case that the
    +4208            input expression is a SQL string).
    +4209        **opts: other options to use to parse the input expressions (again, in the case
    +4210            that the input expression is a SQL string).
    +4211
    +4212    Returns:
    +4213        Condition: the expression
    +4214    """
    +4215    return maybe_parse(  # type: ignore
    +4216        expression,
    +4217        into=Condition,
    +4218        dialect=dialect,
    +4219        **opts,
    +4220    )
     
    @@ -40963,24 +41173,24 @@ that the input expression is a SQL string).
    -
    4197def and_(*expressions, dialect=None, **opts) -> And:
    -4198    """
    -4199    Combine multiple conditions with an AND logical operator.
    -4200
    -4201    Example:
    -4202        >>> and_("x=1", and_("y=1", "z=1")).sql()
    -4203        'x = 1 AND (y = 1 AND z = 1)'
    -4204
    -4205    Args:
    -4206        *expressions (str | Expression): the SQL code strings to parse.
    -4207            If an Expression instance is passed, this is used as-is.
    -4208        dialect (str): the dialect used to parse the input expression.
    -4209        **opts: other options to use to parse the input expressions.
    -4210
    -4211    Returns:
    -4212        And: the new condition
    -4213    """
    -4214    return _combine(expressions, And, dialect, **opts)
    +            
    4223def and_(*expressions, dialect=None, **opts) -> And:
    +4224    """
    +4225    Combine multiple conditions with an AND logical operator.
    +4226
    +4227    Example:
    +4228        >>> and_("x=1", and_("y=1", "z=1")).sql()
    +4229        'x = 1 AND (y = 1 AND z = 1)'
    +4230
    +4231    Args:
    +4232        *expressions (str | Expression): the SQL code strings to parse.
    +4233            If an Expression instance is passed, this is used as-is.
    +4234        dialect (str): the dialect used to parse the input expression.
    +4235        **opts: other options to use to parse the input expressions.
    +4236
    +4237    Returns:
    +4238        And: the new condition
    +4239    """
    +4240    return _combine(expressions, And, dialect, **opts)
     
    @@ -41025,24 +41235,24 @@ If an Expression instance is passed, this is used as-is.
    -
    4217def or_(*expressions, dialect=None, **opts) -> Or:
    -4218    """
    -4219    Combine multiple conditions with an OR logical operator.
    -4220
    -4221    Example:
    -4222        >>> or_("x=1", or_("y=1", "z=1")).sql()
    -4223        'x = 1 OR (y = 1 OR z = 1)'
    -4224
    -4225    Args:
    -4226        *expressions (str | Expression): the SQL code strings to parse.
    -4227            If an Expression instance is passed, this is used as-is.
    -4228        dialect (str): the dialect used to parse the input expression.
    -4229        **opts: other options to use to parse the input expressions.
    -4230
    -4231    Returns:
    -4232        Or: the new condition
    -4233    """
    -4234    return _combine(expressions, Or, dialect, **opts)
    +            
    4243def or_(*expressions, dialect=None, **opts) -> Or:
    +4244    """
    +4245    Combine multiple conditions with an OR logical operator.
    +4246
    +4247    Example:
    +4248        >>> or_("x=1", or_("y=1", "z=1")).sql()
    +4249        'x = 1 OR (y = 1 OR z = 1)'
    +4250
    +4251    Args:
    +4252        *expressions (str | Expression): the SQL code strings to parse.
    +4253            If an Expression instance is passed, this is used as-is.
    +4254        dialect (str): the dialect used to parse the input expression.
    +4255        **opts: other options to use to parse the input expressions.
    +4256
    +4257    Returns:
    +4258        Or: the new condition
    +4259    """
    +4260    return _combine(expressions, Or, dialect, **opts)
     
    @@ -41087,29 +41297,29 @@ If an Expression instance is passed, this is used as-is.
    -
    4237def not_(expression, dialect=None, **opts) -> Not:
    -4238    """
    -4239    Wrap a condition with a NOT operator.
    -4240
    -4241    Example:
    -4242        >>> not_("this_suit='black'").sql()
    -4243        "NOT this_suit = 'black'"
    -4244
    -4245    Args:
    -4246        expression (str | Expression): the SQL code strings to parse.
    -4247            If an Expression instance is passed, this is used as-is.
    -4248        dialect (str): the dialect used to parse the input expression.
    -4249        **opts: other options to use to parse the input expressions.
    -4250
    -4251    Returns:
    -4252        Not: the new condition
    -4253    """
    -4254    this = condition(
    -4255        expression,
    -4256        dialect=dialect,
    -4257        **opts,
    -4258    )
    -4259    return Not(this=_wrap_operator(this))
    +            
    4263def not_(expression, dialect=None, **opts) -> Not:
    +4264    """
    +4265    Wrap a condition with a NOT operator.
    +4266
    +4267    Example:
    +4268        >>> not_("this_suit='black'").sql()
    +4269        "NOT this_suit = 'black'"
    +4270
    +4271    Args:
    +4272        expression (str | Expression): the SQL code strings to parse.
    +4273            If an Expression instance is passed, this is used as-is.
    +4274        dialect (str): the dialect used to parse the input expression.
    +4275        **opts: other options to use to parse the input expressions.
    +4276
    +4277    Returns:
    +4278        Not: the new condition
    +4279    """
    +4280    this = condition(
    +4281        expression,
    +4282        dialect=dialect,
    +4283        **opts,
    +4284    )
    +4285    return Not(this=_wrap_operator(this))
     
    @@ -41154,8 +41364,8 @@ If an Expression instance is passed, this is used as-is.
    -
    4262def paren(expression) -> Paren:
    -4263    return Paren(this=expression)
    +            
    4288def paren(expression) -> Paren:
    +4289    return Paren(this=expression)
     
    @@ -41173,30 +41383,30 @@ If an Expression instance is passed, this is used as-is.
    -
    4279def to_identifier(name, quoted=None):
    -4280    """Builds an identifier.
    -4281
    -4282    Args:
    -4283        name: The name to turn into an identifier.
    -4284        quoted: Whether or not force quote the identifier.
    -4285
    -4286    Returns:
    -4287        The identifier ast node.
    -4288    """
    -4289
    -4290    if name is None:
    -4291        return None
    -4292
    -4293    if isinstance(name, Identifier):
    -4294        identifier = name
    -4295    elif isinstance(name, str):
    -4296        identifier = Identifier(
    -4297            this=name,
    -4298            quoted=not re.match(SAFE_IDENTIFIER_RE, name) if quoted is None else quoted,
    -4299        )
    -4300    else:
    -4301        raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}")
    -4302    return identifier
    +            
    4305def to_identifier(name, quoted=None):
    +4306    """Builds an identifier.
    +4307
    +4308    Args:
    +4309        name: The name to turn into an identifier.
    +4310        quoted: Whether or not force quote the identifier.
    +4311
    +4312    Returns:
    +4313        The identifier ast node.
    +4314    """
    +4315
    +4316    if name is None:
    +4317        return None
    +4318
    +4319    if isinstance(name, Identifier):
    +4320        identifier = name
    +4321    elif isinstance(name, str):
    +4322        identifier = Identifier(
    +4323            this=name,
    +4324            quoted=not re.match(SAFE_IDENTIFIER_RE, name) if quoted is None else quoted,
    +4325        )
    +4326    else:
    +4327        raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}")
    +4328    return identifier
     
    @@ -41229,23 +41439,23 @@ If an Expression instance is passed, this is used as-is.
    -
    4308def to_interval(interval: str | Literal) -> Interval:
    -4309    """Builds an interval expression from a string like '1 day' or '5 months'."""
    -4310    if isinstance(interval, Literal):
    -4311        if not interval.is_string:
    -4312            raise ValueError("Invalid interval string.")
    -4313
    -4314        interval = interval.this
    -4315
    -4316    interval_parts = INTERVAL_STRING_RE.match(interval)  # type: ignore
    -4317
    -4318    if not interval_parts:
    -4319        raise ValueError("Invalid interval string.")
    -4320
    -4321    return Interval(
    -4322        this=Literal.string(interval_parts.group(1)),
    -4323        unit=Var(this=interval_parts.group(2)),
    -4324    )
    +            
    4334def to_interval(interval: str | Literal) -> Interval:
    +4335    """Builds an interval expression from a string like '1 day' or '5 months'."""
    +4336    if isinstance(interval, Literal):
    +4337        if not interval.is_string:
    +4338            raise ValueError("Invalid interval string.")
    +4339
    +4340        interval = interval.this
    +4341
    +4342    interval_parts = INTERVAL_STRING_RE.match(interval)  # type: ignore
    +4343
    +4344    if not interval_parts:
    +4345        raise ValueError("Invalid interval string.")
    +4346
    +4347    return Interval(
    +4348        this=Literal.string(interval_parts.group(1)),
    +4349        unit=Var(this=interval_parts.group(2)),
    +4350    )
     
    @@ -41265,24 +41475,24 @@ If an Expression instance is passed, this is used as-is.
    -
    4337def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]:
    -4338    """
    -4339    Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional.
    -4340    If a table is passed in then that table is returned.
    -4341
    -4342    Args:
    -4343        sql_path: a `[catalog].[schema].[table]` string.
    -4344
    -4345    Returns:
    -4346        A table expression.
    -4347    """
    -4348    if sql_path is None or isinstance(sql_path, Table):
    -4349        return sql_path
    -4350    if not isinstance(sql_path, str):
    -4351        raise ValueError(f"Invalid type provided for a table: {type(sql_path)}")
    -4352
    -4353    catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3))
    -4354    return Table(this=table_name, db=db, catalog=catalog, **kwargs)
    +            
    4363def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]:
    +4364    """
    +4365    Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional.
    +4366    If a table is passed in then that table is returned.
    +4367
    +4368    Args:
    +4369        sql_path: a `[catalog].[schema].[table]` string.
    +4370
    +4371    Returns:
    +4372        A table expression.
    +4373    """
    +4374    if sql_path is None or isinstance(sql_path, Table):
    +4375        return sql_path
    +4376    if not isinstance(sql_path, str):
    +4377        raise ValueError(f"Invalid type provided for a table: {type(sql_path)}")
    +4378
    +4379    catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3))
    +4380    return Table(this=table_name, db=db, catalog=catalog, **kwargs)
     
    @@ -41315,23 +41525,23 @@ If a table is passed in then that table is returned.

    -
    4357def to_column(sql_path: str | Column, **kwargs) -> Column:
    -4358    """
    -4359    Create a column from a `[table].[column]` sql path. Schema is optional.
    -4360
    -4361    If a column is passed in then that column is returned.
    -4362
    -4363    Args:
    -4364        sql_path: `[table].[column]` string
    -4365    Returns:
    -4366        Table: A column expression
    -4367    """
    -4368    if sql_path is None or isinstance(sql_path, Column):
    -4369        return sql_path
    -4370    if not isinstance(sql_path, str):
    -4371        raise ValueError(f"Invalid type provided for column: {type(sql_path)}")
    -4372    table_name, column_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 2))
    -4373    return Column(this=column_name, table=table_name, **kwargs)
    +            
    4383def to_column(sql_path: str | Column, **kwargs) -> Column:
    +4384    """
    +4385    Create a column from a `[table].[column]` sql path. Schema is optional.
    +4386
    +4387    If a column is passed in then that column is returned.
    +4388
    +4389    Args:
    +4390        sql_path: `[table].[column]` string
    +4391    Returns:
    +4392        Table: A column expression
    +4393    """
    +4394    if sql_path is None or isinstance(sql_path, Column):
    +4395        return sql_path
    +4396    if not isinstance(sql_path, str):
    +4397        raise ValueError(f"Invalid type provided for column: {type(sql_path)}")
    +4398    table_name, column_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 2))
    +4399    return Column(this=column_name, table=table_name, **kwargs)
     
    @@ -41365,60 +41575,60 @@ If a table is passed in then that table is returned.

    -
    4376def alias_(
    -4377    expression: str | Expression,
    -4378    alias: str | Identifier,
    -4379    table: bool | t.Sequence[str | Identifier] = False,
    -4380    quoted: t.Optional[bool] = None,
    -4381    dialect: DialectType = None,
    -4382    **opts,
    -4383):
    -4384    """Create an Alias expression.
    -4385
    -4386    Example:
    -4387        >>> alias_('foo', 'bar').sql()
    -4388        'foo AS bar'
    -4389
    -4390        >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()
    -4391        '(SELECT 1, 2) AS bar(a, b)'
    -4392
    -4393    Args:
    -4394        expression: the SQL code strings to parse.
    -4395            If an Expression instance is passed, this is used as-is.
    -4396        alias: the alias name to use. If the name has
    -4397            special characters it is quoted.
    -4398        table: Whether or not to create a table alias, can also be a list of columns.
    -4399        quoted: whether or not to quote the alias
    -4400        dialect: the dialect used to parse the input expression.
    -4401        **opts: other options to use to parse the input expressions.
    -4402
    -4403    Returns:
    -4404        Alias: the aliased expression
    -4405    """
    -4406    exp = maybe_parse(expression, dialect=dialect, **opts)
    -4407    alias = to_identifier(alias, quoted=quoted)
    -4408
    -4409    if table:
    -4410        table_alias = TableAlias(this=alias)
    -4411        exp.set("alias", table_alias)
    -4412
    -4413        if not isinstance(table, bool):
    -4414            for column in table:
    -4415                table_alias.append("columns", to_identifier(column, quoted=quoted))
    -4416
    -4417        return exp
    +            
    4402def alias_(
    +4403    expression: str | Expression,
    +4404    alias: str | Identifier,
    +4405    table: bool | t.Sequence[str | Identifier] = False,
    +4406    quoted: t.Optional[bool] = None,
    +4407    dialect: DialectType = None,
    +4408    **opts,
    +4409):
    +4410    """Create an Alias expression.
    +4411
    +4412    Example:
    +4413        >>> alias_('foo', 'bar').sql()
    +4414        'foo AS bar'
    +4415
    +4416        >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()
    +4417        '(SELECT 1, 2) AS bar(a, b)'
     4418
    -4419    # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in
    -4420    # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node
    -4421    # for the complete Window expression.
    -4422    #
    -4423    # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls
    -4424
    -4425    if "alias" in exp.arg_types and not isinstance(exp, Window):
    -4426        exp = exp.copy()
    -4427        exp.set("alias", alias)
    -4428        return exp
    -4429    return Alias(this=exp, alias=alias)
    +4419    Args:
    +4420        expression: the SQL code strings to parse.
    +4421            If an Expression instance is passed, this is used as-is.
    +4422        alias: the alias name to use. If the name has
    +4423            special characters it is quoted.
    +4424        table: Whether or not to create a table alias, can also be a list of columns.
    +4425        quoted: whether or not to quote the alias
    +4426        dialect: the dialect used to parse the input expression.
    +4427        **opts: other options to use to parse the input expressions.
    +4428
    +4429    Returns:
    +4430        Alias: the aliased expression
    +4431    """
    +4432    exp = maybe_parse(expression, dialect=dialect, **opts)
    +4433    alias = to_identifier(alias, quoted=quoted)
    +4434
    +4435    if table:
    +4436        table_alias = TableAlias(this=alias)
    +4437        exp.set("alias", table_alias)
    +4438
    +4439        if not isinstance(table, bool):
    +4440            for column in table:
    +4441                table_alias.append("columns", to_identifier(column, quoted=quoted))
    +4442
    +4443        return exp
    +4444
    +4445    # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in
    +4446    # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node
    +4447    # for the complete Window expression.
    +4448    #
    +4449    # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls
    +4450
    +4451    if "alias" in exp.arg_types and not isinstance(exp, Window):
    +4452        exp = exp.copy()
    +4453        exp.set("alias", alias)
    +4454        return exp
    +4455    return Alias(this=exp, alias=alias)
     
    @@ -41473,27 +41683,27 @@ special characters it is quoted.
    -
    4432def subquery(expression, alias=None, dialect=None, **opts):
    -4433    """
    -4434    Build a subquery expression.
    -4435
    -4436    Example:
    -4437        >>> subquery('select x from tbl', 'bar').select('x').sql()
    -4438        'SELECT x FROM (SELECT x FROM tbl) AS bar'
    -4439
    -4440    Args:
    -4441        expression (str | Expression): the SQL code strings to parse.
    -4442            If an Expression instance is passed, this is used as-is.
    -4443        alias (str | Expression): the alias name to use.
    -4444        dialect (str): the dialect used to parse the input expression.
    -4445        **opts: other options to use to parse the input expressions.
    -4446
    -4447    Returns:
    -4448        Select: a new select with the subquery expression included
    -4449    """
    -4450
    -4451    expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias)
    -4452    return Select().from_(expression, dialect=dialect, **opts)
    +            
    4458def subquery(expression, alias=None, dialect=None, **opts):
    +4459    """
    +4460    Build a subquery expression.
    +4461
    +4462    Example:
    +4463        >>> subquery('select x from tbl', 'bar').select('x').sql()
    +4464        'SELECT x FROM (SELECT x FROM tbl) AS bar'
    +4465
    +4466    Args:
    +4467        expression (str | Expression): the SQL code strings to parse.
    +4468            If an Expression instance is passed, this is used as-is.
    +4469        alias (str | Expression): the alias name to use.
    +4470        dialect (str): the dialect used to parse the input expression.
    +4471        **opts: other options to use to parse the input expressions.
    +4472
    +4473    Returns:
    +4474        Select: a new select with the subquery expression included
    +4475    """
    +4476
    +4477    expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias)
    +4478    return Select().from_(expression, dialect=dialect, **opts)
     
    @@ -41539,28 +41749,28 @@ If an Expression instance is passed, this is used as-is.
    -
    4455def column(
    -4456    col: str | Identifier,
    -4457    table: t.Optional[str | Identifier] = None,
    -4458    schema: t.Optional[str | Identifier] = None,
    -4459    quoted: t.Optional[bool] = None,
    -4460) -> Column:
    -4461    """
    -4462    Build a Column.
    -4463
    -4464    Args:
    -4465        col: column name
    -4466        table: table name
    -4467        schema: schema name
    -4468        quoted: whether or not to force quote each part
    -4469    Returns:
    -4470        Column: column instance
    -4471    """
    -4472    return Column(
    -4473        this=to_identifier(col, quoted=quoted),
    -4474        table=to_identifier(table, quoted=quoted),
    -4475        schema=to_identifier(schema, quoted=quoted),
    -4476    )
    +            
    4481def column(
    +4482    col: str | Identifier,
    +4483    table: t.Optional[str | Identifier] = None,
    +4484    schema: t.Optional[str | Identifier] = None,
    +4485    quoted: t.Optional[bool] = None,
    +4486) -> Column:
    +4487    """
    +4488    Build a Column.
    +4489
    +4490    Args:
    +4491        col: column name
    +4492        table: table name
    +4493        schema: schema name
    +4494        quoted: whether or not to force quote each part
    +4495    Returns:
    +4496        Column: column instance
    +4497    """
    +4498    return Column(
    +4499        this=to_identifier(col, quoted=quoted),
    +4500        table=to_identifier(table, quoted=quoted),
    +4501        schema=to_identifier(schema, quoted=quoted),
    +4502    )
     
    @@ -41595,22 +41805,22 @@ If an Expression instance is passed, this is used as-is.
    -
    4479def cast(expression: str | Expression, to: str | DataType | DataType.Type, **opts) -> Cast:
    -4480    """Cast an expression to a data type.
    -4481
    -4482    Example:
    -4483        >>> cast('x + 1', 'int').sql()
    -4484        'CAST(x + 1 AS INT)'
    -4485
    -4486    Args:
    -4487        expression: The expression to cast.
    -4488        to: The datatype to cast to.
    -4489
    -4490    Returns:
    -4491        A cast node.
    -4492    """
    -4493    expression = maybe_parse(expression, **opts)
    -4494    return Cast(this=expression, to=DataType.build(to, **opts))
    +            
    4505def cast(expression: str | Expression, to: str | DataType | DataType.Type, **opts) -> Cast:
    +4506    """Cast an expression to a data type.
    +4507
    +4508    Example:
    +4509        >>> cast('x + 1', 'int').sql()
    +4510        'CAST(x + 1 AS INT)'
    +4511
    +4512    Args:
    +4513        expression: The expression to cast.
    +4514        to: The datatype to cast to.
    +4515
    +4516    Returns:
    +4517        A cast node.
    +4518    """
    +4519    expression = maybe_parse(expression, **opts)
    +4520    return Cast(this=expression, to=DataType.build(to, **opts))
     
    @@ -41653,23 +41863,23 @@ If an Expression instance is passed, this is used as-is.
    -
    4497def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table:
    -4498    """Build a Table.
    -4499
    -4500    Args:
    -4501        table (str | Expression): column name
    -4502        db (str | Expression): db name
    -4503        catalog (str | Expression): catalog name
    -4504
    -4505    Returns:
    -4506        Table: table instance
    -4507    """
    -4508    return Table(
    -4509        this=to_identifier(table, quoted=quoted),
    -4510        db=to_identifier(db, quoted=quoted),
    -4511        catalog=to_identifier(catalog, quoted=quoted),
    -4512        alias=TableAlias(this=to_identifier(alias)) if alias else None,
    -4513    )
    +            
    4523def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table:
    +4524    """Build a Table.
    +4525
    +4526    Args:
    +4527        table (str | Expression): column name
    +4528        db (str | Expression): db name
    +4529        catalog (str | Expression): catalog name
    +4530
    +4531    Returns:
    +4532        Table: table instance
    +4533    """
    +4534    return Table(
    +4535        this=to_identifier(table, quoted=quoted),
    +4536        db=to_identifier(db, quoted=quoted),
    +4537        catalog=to_identifier(catalog, quoted=quoted),
    +4538        alias=TableAlias(this=to_identifier(alias)) if alias else None,
    +4539    )
     
    @@ -41703,46 +41913,46 @@ If an Expression instance is passed, this is used as-is.
    -
    4516def values(
    -4517    values: t.Iterable[t.Tuple[t.Any, ...]],
    -4518    alias: t.Optional[str] = None,
    -4519    columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None,
    -4520) -> Values:
    -4521    """Build VALUES statement.
    -4522
    -4523    Example:
    -4524        >>> values([(1, '2')]).sql()
    -4525        "VALUES (1, '2')"
    -4526
    -4527    Args:
    -4528        values: values statements that will be converted to SQL
    -4529        alias: optional alias
    -4530        columns: Optional list of ordered column names or ordered dictionary of column names to types.
    -4531         If either are provided then an alias is also required.
    -4532         If a dictionary is provided then the first column of the values will be casted to the expected type
    -4533         in order to help with type inference.
    -4534
    -4535    Returns:
    -4536        Values: the Values expression object
    -4537    """
    -4538    if columns and not alias:
    -4539        raise ValueError("Alias is required when providing columns")
    -4540    table_alias = (
    -4541        TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns])
    -4542        if columns
    -4543        else TableAlias(this=to_identifier(alias) if alias else None)
    -4544    )
    -4545    expressions = [convert(tup) for tup in values]
    -4546    if columns and isinstance(columns, dict):
    -4547        types = list(columns.values())
    -4548        expressions[0].set(
    -4549            "expressions",
    -4550            [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)],
    -4551        )
    -4552    return Values(
    -4553        expressions=expressions,
    -4554        alias=table_alias,
    -4555    )
    +            
    4542def values(
    +4543    values: t.Iterable[t.Tuple[t.Any, ...]],
    +4544    alias: t.Optional[str] = None,
    +4545    columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None,
    +4546) -> Values:
    +4547    """Build VALUES statement.
    +4548
    +4549    Example:
    +4550        >>> values([(1, '2')]).sql()
    +4551        "VALUES (1, '2')"
    +4552
    +4553    Args:
    +4554        values: values statements that will be converted to SQL
    +4555        alias: optional alias
    +4556        columns: Optional list of ordered column names or ordered dictionary of column names to types.
    +4557         If either are provided then an alias is also required.
    +4558         If a dictionary is provided then the first column of the values will be casted to the expected type
    +4559         in order to help with type inference.
    +4560
    +4561    Returns:
    +4562        Values: the Values expression object
    +4563    """
    +4564    if columns and not alias:
    +4565        raise ValueError("Alias is required when providing columns")
    +4566    table_alias = (
    +4567        TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns])
    +4568        if columns
    +4569        else TableAlias(this=to_identifier(alias) if alias else None)
    +4570    )
    +4571    expressions = [convert(tup) for tup in values]
    +4572    if columns and isinstance(columns, dict):
    +4573        types = list(columns.values())
    +4574        expressions[0].set(
    +4575            "expressions",
    +4576            [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)],
    +4577        )
    +4578    return Values(
    +4579        expressions=expressions,
    +4580        alias=table_alias,
    +4581    )
     
    @@ -41789,28 +41999,28 @@ in order to help with type inference.
    -
    4558def var(name: t.Optional[str | Expression]) -> Var:
    -4559    """Build a SQL variable.
    -4560
    -4561    Example:
    -4562        >>> repr(var('x'))
    -4563        '(VAR this: x)'
    -4564
    -4565        >>> repr(var(column('x', table='y')))
    -4566        '(VAR this: x)'
    -4567
    -4568    Args:
    -4569        name: The name of the var or an expression who's name will become the var.
    -4570
    -4571    Returns:
    -4572        The new variable node.
    -4573    """
    -4574    if not name:
    -4575        raise ValueError(f"Cannot convert empty name into var.")
    -4576
    -4577    if isinstance(name, Expression):
    -4578        name = name.name
    -4579    return Var(this=name)
    +            
    4584def var(name: t.Optional[str | Expression]) -> Var:
    +4585    """Build a SQL variable.
    +4586
    +4587    Example:
    +4588        >>> repr(var('x'))
    +4589        '(VAR this: x)'
    +4590
    +4591        >>> repr(var(column('x', table='y')))
    +4592        '(VAR this: x)'
    +4593
    +4594    Args:
    +4595        name: The name of the var or an expression who's name will become the var.
    +4596
    +4597    Returns:
    +4598        The new variable node.
    +4599    """
    +4600    if not name:
    +4601        raise ValueError(f"Cannot convert empty name into var.")
    +4602
    +4603    if isinstance(name, Expression):
    +4604        name = name.name
    +4605    return Var(this=name)
     
    @@ -41858,24 +42068,24 @@ in order to help with type inference.
    -
    4582def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable:
    -4583    """Build ALTER TABLE... RENAME... expression
    -4584
    -4585    Args:
    -4586        old_name: The old name of the table
    -4587        new_name: The new name of the table
    -4588
    -4589    Returns:
    -4590        Alter table expression
    -4591    """
    -4592    old_table = to_table(old_name)
    -4593    new_table = to_table(new_name)
    -4594    return AlterTable(
    -4595        this=old_table,
    -4596        actions=[
    -4597            RenameTable(this=new_table),
    -4598        ],
    -4599    )
    +            
    4608def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable:
    +4609    """Build ALTER TABLE... RENAME... expression
    +4610
    +4611    Args:
    +4612        old_name: The old name of the table
    +4613        new_name: The new name of the table
    +4614
    +4615    Returns:
    +4616        Alter table expression
    +4617    """
    +4618    old_table = to_table(old_name)
    +4619    new_table = to_table(new_name)
    +4620    return AlterTable(
    +4621        this=old_table,
    +4622        actions=[
    +4623            RenameTable(this=new_table),
    +4624        ],
    +4625    )
     
    @@ -41908,47 +42118,47 @@ in order to help with type inference.
    -
    4602def convert(value) -> Expression:
    -4603    """Convert a python value into an expression object.
    -4604
    -4605    Raises an error if a conversion is not possible.
    -4606
    -4607    Args:
    -4608        value (Any): a python object
    -4609
    -4610    Returns:
    -4611        Expression: the equivalent expression object
    -4612    """
    -4613    if isinstance(value, Expression):
    -4614        return value
    -4615    if value is None:
    -4616        return NULL
    -4617    if isinstance(value, bool):
    -4618        return Boolean(this=value)
    -4619    if isinstance(value, str):
    -4620        return Literal.string(value)
    -4621    if isinstance(value, float) and math.isnan(value):
    -4622        return NULL
    -4623    if isinstance(value, numbers.Number):
    -4624        return Literal.number(value)
    -4625    if isinstance(value, tuple):
    -4626        return Tuple(expressions=[convert(v) for v in value])
    -4627    if isinstance(value, list):
    -4628        return Array(expressions=[convert(v) for v in value])
    -4629    if isinstance(value, dict):
    -4630        return Map(
    -4631            keys=[convert(k) for k in value],
    -4632            values=[convert(v) for v in value.values()],
    -4633        )
    -4634    if isinstance(value, datetime.datetime):
    -4635        datetime_literal = Literal.string(
    -4636            (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat()
    -4637        )
    -4638        return TimeStrToTime(this=datetime_literal)
    -4639    if isinstance(value, datetime.date):
    -4640        date_literal = Literal.string(value.strftime("%Y-%m-%d"))
    -4641        return DateStrToDate(this=date_literal)
    -4642    raise ValueError(f"Cannot convert {value}")
    +            
    4628def convert(value) -> Expression:
    +4629    """Convert a python value into an expression object.
    +4630
    +4631    Raises an error if a conversion is not possible.
    +4632
    +4633    Args:
    +4634        value (Any): a python object
    +4635
    +4636    Returns:
    +4637        Expression: the equivalent expression object
    +4638    """
    +4639    if isinstance(value, Expression):
    +4640        return value
    +4641    if value is None:
    +4642        return NULL
    +4643    if isinstance(value, bool):
    +4644        return Boolean(this=value)
    +4645    if isinstance(value, str):
    +4646        return Literal.string(value)
    +4647    if isinstance(value, float) and math.isnan(value):
    +4648        return NULL
    +4649    if isinstance(value, numbers.Number):
    +4650        return Literal.number(value)
    +4651    if isinstance(value, tuple):
    +4652        return Tuple(expressions=[convert(v) for v in value])
    +4653    if isinstance(value, list):
    +4654        return Array(expressions=[convert(v) for v in value])
    +4655    if isinstance(value, dict):
    +4656        return Map(
    +4657            keys=[convert(k) for k in value],
    +4658            values=[convert(v) for v in value.values()],
    +4659        )
    +4660    if isinstance(value, datetime.datetime):
    +4661        datetime_literal = Literal.string(
    +4662            (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat()
    +4663        )
    +4664        return TimeStrToTime(this=datetime_literal)
    +4665    if isinstance(value, datetime.date):
    +4666        date_literal = Literal.string(value.strftime("%Y-%m-%d"))
    +4667        return DateStrToDate(this=date_literal)
    +4668    raise ValueError(f"Cannot convert {value}")
     
    @@ -41982,26 +42192,26 @@ in order to help with type inference.
    -
    4645def replace_children(expression, fun):
    -4646    """
    -4647    Replace children of an expression with the result of a lambda fun(child) -> exp.
    -4648    """
    -4649    for k, v in expression.args.items():
    -4650        is_list_arg = isinstance(v, list)
    -4651
    -4652        child_nodes = v if is_list_arg else [v]
    -4653        new_child_nodes = []
    -4654
    -4655        for cn in child_nodes:
    -4656            if isinstance(cn, Expression):
    -4657                for child_node in ensure_collection(fun(cn)):
    -4658                    new_child_nodes.append(child_node)
    -4659                    child_node.parent = expression
    -4660                    child_node.arg_key = k
    -4661            else:
    -4662                new_child_nodes.append(cn)
    -4663
    -4664        expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0)
    +            
    4671def replace_children(expression, fun):
    +4672    """
    +4673    Replace children of an expression with the result of a lambda fun(child) -> exp.
    +4674    """
    +4675    for k, v in expression.args.items():
    +4676        is_list_arg = isinstance(v, list)
    +4677
    +4678        child_nodes = v if is_list_arg else [v]
    +4679        new_child_nodes = []
    +4680
    +4681        for cn in child_nodes:
    +4682            if isinstance(cn, Expression):
    +4683                for child_node in ensure_collection(fun(cn)):
    +4684                    new_child_nodes.append(child_node)
    +4685                    child_node.parent = expression
    +4686                    child_node.arg_key = k
    +4687            else:
    +4688                new_child_nodes.append(cn)
    +4689
    +4690        expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0)
     
    @@ -42021,22 +42231,22 @@ in order to help with type inference.
    -
    4667def column_table_names(expression):
    -4668    """
    -4669    Return all table names referenced through columns in an expression.
    -4670
    -4671    Example:
    -4672        >>> import sqlglot
    -4673        >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))
    -4674        ['c', 'a']
    -4675
    -4676    Args:
    -4677        expression (sqlglot.Expression): expression to find table names
    -4678
    -4679    Returns:
    -4680        list: A list of unique names
    -4681    """
    -4682    return list(dict.fromkeys(column.table for column in expression.find_all(Column)))
    +            
    4693def column_table_names(expression):
    +4694    """
    +4695    Return all table names referenced through columns in an expression.
    +4696
    +4697    Example:
    +4698        >>> import sqlglot
    +4699        >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))
    +4700        ['c', 'a']
    +4701
    +4702    Args:
    +4703        expression (sqlglot.Expression): expression to find table names
    +4704
    +4705    Returns:
    +4706        list: A list of unique names
    +4707    """
    +4708    return list(dict.fromkeys(column.table for column in expression.find_all(Column)))
     
    @@ -42079,35 +42289,35 @@ in order to help with type inference.
    -
    4685def table_name(table) -> str:
    -4686    """Get the full name of a table as a string.
    -4687
    -4688    Args:
    -4689        table (exp.Table | str): table expression node or string.
    -4690
    -4691    Examples:
    -4692        >>> from sqlglot import exp, parse_one
    -4693        >>> table_name(parse_one("select * from a.b.c").find(exp.Table))
    -4694        'a.b.c'
    -4695
    -4696    Returns:
    -4697        The table name.
    -4698    """
    -4699
    -4700    table = maybe_parse(table, into=Table)
    -4701
    -4702    if not table:
    -4703        raise ValueError(f"Cannot parse {table}")
    -4704
    -4705    return ".".join(
    -4706        part
    -4707        for part in (
    -4708            table.text("catalog"),
    -4709            table.text("db"),
    -4710            table.name,
    -4711        )
    -4712        if part
    -4713    )
    +            
    4711def table_name(table) -> str:
    +4712    """Get the full name of a table as a string.
    +4713
    +4714    Args:
    +4715        table (exp.Table | str): table expression node or string.
    +4716
    +4717    Examples:
    +4718        >>> from sqlglot import exp, parse_one
    +4719        >>> table_name(parse_one("select * from a.b.c").find(exp.Table))
    +4720        'a.b.c'
    +4721
    +4722    Returns:
    +4723        The table name.
    +4724    """
    +4725
    +4726    table = maybe_parse(table, into=Table)
    +4727
    +4728    if not table:
    +4729        raise ValueError(f"Cannot parse {table}")
    +4730
    +4731    return ".".join(
    +4732        part
    +4733        for part in (
    +4734            table.text("catalog"),
    +4735            table.text("db"),
    +4736            table.name,
    +4737        )
    +4738        if part
    +4739    )
     
    @@ -42150,33 +42360,33 @@ in order to help with type inference.
    -
    4716def replace_tables(expression, mapping):
    -4717    """Replace all tables in expression according to the mapping.
    -4718
    -4719    Args:
    -4720        expression (sqlglot.Expression): expression node to be transformed and replaced.
    -4721        mapping (Dict[str, str]): mapping of table names.
    -4722
    -4723    Examples:
    -4724        >>> from sqlglot import exp, parse_one
    -4725        >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()
    -4726        'SELECT * FROM c'
    -4727
    -4728    Returns:
    -4729        The mapped expression.
    -4730    """
    -4731
    -4732    def _replace_tables(node):
    -4733        if isinstance(node, Table):
    -4734            new_name = mapping.get(table_name(node))
    -4735            if new_name:
    -4736                return to_table(
    -4737                    new_name,
    -4738                    **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")},
    -4739                )
    -4740        return node
    -4741
    -4742    return expression.transform(_replace_tables)
    +            
    4742def replace_tables(expression, mapping):
    +4743    """Replace all tables in expression according to the mapping.
    +4744
    +4745    Args:
    +4746        expression (sqlglot.Expression): expression node to be transformed and replaced.
    +4747        mapping (Dict[str, str]): mapping of table names.
    +4748
    +4749    Examples:
    +4750        >>> from sqlglot import exp, parse_one
    +4751        >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()
    +4752        'SELECT * FROM c'
    +4753
    +4754    Returns:
    +4755        The mapped expression.
    +4756    """
    +4757
    +4758    def _replace_tables(node):
    +4759        if isinstance(node, Table):
    +4760            new_name = mapping.get(table_name(node))
    +4761            if new_name:
    +4762                return to_table(
    +4763                    new_name,
    +4764                    **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")},
    +4765                )
    +4766        return node
    +4767
    +4768    return expression.transform(_replace_tables)
     
    @@ -42220,39 +42430,39 @@ in order to help with type inference.
    -
    4745def replace_placeholders(expression, *args, **kwargs):
    -4746    """Replace placeholders in an expression.
    -4747
    -4748    Args:
    -4749        expression (sqlglot.Expression): expression node to be transformed and replaced.
    -4750        args: positional names that will substitute unnamed placeholders in the given order.
    -4751        kwargs: keyword arguments that will substitute named placeholders.
    -4752
    -4753    Examples:
    -4754        >>> from sqlglot import exp, parse_one
    -4755        >>> replace_placeholders(
    -4756        ...     parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo"
    -4757        ... ).sql()
    -4758        'SELECT * FROM foo WHERE a = b'
    -4759
    -4760    Returns:
    -4761        The mapped expression.
    -4762    """
    -4763
    -4764    def _replace_placeholders(node, args, **kwargs):
    -4765        if isinstance(node, Placeholder):
    -4766            if node.name:
    -4767                new_name = kwargs.get(node.name)
    -4768                if new_name:
    -4769                    return to_identifier(new_name)
    -4770            else:
    -4771                try:
    -4772                    return to_identifier(next(args))
    -4773                except StopIteration:
    -4774                    pass
    -4775        return node
    -4776
    -4777    return expression.transform(_replace_placeholders, iter(args), **kwargs)
    +            
    4771def replace_placeholders(expression, *args, **kwargs):
    +4772    """Replace placeholders in an expression.
    +4773
    +4774    Args:
    +4775        expression (sqlglot.Expression): expression node to be transformed and replaced.
    +4776        args: positional names that will substitute unnamed placeholders in the given order.
    +4777        kwargs: keyword arguments that will substitute named placeholders.
    +4778
    +4779    Examples:
    +4780        >>> from sqlglot import exp, parse_one
    +4781        >>> replace_placeholders(
    +4782        ...     parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo"
    +4783        ... ).sql()
    +4784        'SELECT * FROM foo WHERE a = b'
    +4785
    +4786    Returns:
    +4787        The mapped expression.
    +4788    """
    +4789
    +4790    def _replace_placeholders(node, args, **kwargs):
    +4791        if isinstance(node, Placeholder):
    +4792            if node.name:
    +4793                new_name = kwargs.get(node.name)
    +4794                if new_name:
    +4795                    return to_identifier(new_name)
    +4796            else:
    +4797                try:
    +4798                    return to_identifier(next(args))
    +4799                except StopIteration:
    +4800                    pass
    +4801        return node
    +4802
    +4803    return expression.transform(_replace_placeholders, iter(args), **kwargs)
     
    @@ -42299,34 +42509,34 @@ in order to help with type inference.
    -
    4780def expand(expression: Expression, sources: t.Dict[str, Subqueryable], copy=True) -> Expression:
    -4781    """Transforms an expression by expanding all referenced sources into subqueries.
    -4782
    -4783    Examples:
    -4784        >>> from sqlglot import parse_one
    -4785        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()
    -4786        'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'
    -4787
    -4788    Args:
    -4789        expression: The expression to expand.
    -4790        sources: A dictionary of name to Subqueryables.
    -4791        copy: Whether or not to copy the expression during transformation. Defaults to True.
    -4792
    -4793    Returns:
    -4794        The transformed expression.
    -4795    """
    -4796
    -4797    def _expand(node: Expression):
    -4798        if isinstance(node, Table):
    -4799            name = table_name(node)
    -4800            source = sources.get(name)
    -4801            if source:
    -4802                subquery = source.subquery(node.alias or name)
    -4803                subquery.comments = [f"source: {name}"]
    -4804                return subquery
    -4805        return node
    -4806
    -4807    return expression.transform(_expand, copy=copy)
    +            
    4806def expand(expression: Expression, sources: t.Dict[str, Subqueryable], copy=True) -> Expression:
    +4807    """Transforms an expression by expanding all referenced sources into subqueries.
    +4808
    +4809    Examples:
    +4810        >>> from sqlglot import parse_one
    +4811        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()
    +4812        'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'
    +4813
    +4814    Args:
    +4815        expression: The expression to expand.
    +4816        sources: A dictionary of name to Subqueryables.
    +4817        copy: Whether or not to copy the expression during transformation. Defaults to True.
    +4818
    +4819    Returns:
    +4820        The transformed expression.
    +4821    """
    +4822
    +4823    def _expand(node: Expression):
    +4824        if isinstance(node, Table):
    +4825            name = table_name(node)
    +4826            source = sources.get(name)
    +4827            if source:
    +4828                subquery = source.subquery(node.alias or name)
    +4829                subquery.comments = [f"source: {name}"]
    +4830                return subquery
    +4831        return node
    +4832
    +4833    return expression.transform(_expand, copy=copy)
     
    @@ -42371,51 +42581,51 @@ in order to help with type inference.
    -
    4810def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func:
    -4811    """
    -4812    Returns a Func expression.
    -4813
    -4814    Examples:
    -4815        >>> func("abs", 5).sql()
    -4816        'ABS(5)'
    -4817
    -4818        >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()
    -4819        'CAST(5 AS DOUBLE)'
    -4820
    -4821    Args:
    -4822        name: the name of the function to build.
    -4823        args: the args used to instantiate the function of interest.
    -4824        dialect: the source dialect.
    -4825        kwargs: the kwargs used to instantiate the function of interest.
    -4826
    -4827    Note:
    -4828        The arguments `args` and `kwargs` are mutually exclusive.
    -4829
    -4830    Returns:
    -4831        An instance of the function of interest, or an anonymous function, if `name` doesn't
    -4832        correspond to an existing `sqlglot.expressions.Func` class.
    -4833    """
    -4834    if args and kwargs:
    -4835        raise ValueError("Can't use both args and kwargs to instantiate a function.")
    -4836
    -4837    from sqlglot.dialects.dialect import Dialect
    -4838
    -4839    args = tuple(convert(arg) for arg in args)
    -4840    kwargs = {key: convert(value) for key, value in kwargs.items()}
    -4841
    -4842    parser = Dialect.get_or_raise(dialect)().parser()
    -4843    from_args_list = parser.FUNCTIONS.get(name.upper())
    -4844
    -4845    if from_args_list:
    -4846        function = from_args_list(args) if args else from_args_list.__self__(**kwargs)  # type: ignore
    -4847    else:
    -4848        kwargs = kwargs or {"expressions": args}
    -4849        function = Anonymous(this=name, **kwargs)
    -4850
    -4851    for error_message in function.error_messages(args):
    -4852        raise ValueError(error_message)
    -4853
    -4854    return function
    +            
    4836def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func:
    +4837    """
    +4838    Returns a Func expression.
    +4839
    +4840    Examples:
    +4841        >>> func("abs", 5).sql()
    +4842        'ABS(5)'
    +4843
    +4844        >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()
    +4845        'CAST(5 AS DOUBLE)'
    +4846
    +4847    Args:
    +4848        name: the name of the function to build.
    +4849        args: the args used to instantiate the function of interest.
    +4850        dialect: the source dialect.
    +4851        kwargs: the kwargs used to instantiate the function of interest.
    +4852
    +4853    Note:
    +4854        The arguments `args` and `kwargs` are mutually exclusive.
    +4855
    +4856    Returns:
    +4857        An instance of the function of interest, or an anonymous function, if `name` doesn't
    +4858        correspond to an existing `sqlglot.expressions.Func` class.
    +4859    """
    +4860    if args and kwargs:
    +4861        raise ValueError("Can't use both args and kwargs to instantiate a function.")
    +4862
    +4863    from sqlglot.dialects.dialect import Dialect
    +4864
    +4865    args = tuple(convert(arg) for arg in args)
    +4866    kwargs = {key: convert(value) for key, value in kwargs.items()}
    +4867
    +4868    parser = Dialect.get_or_raise(dialect)().parser()
    +4869    from_args_list = parser.FUNCTIONS.get(name.upper())
    +4870
    +4871    if from_args_list:
    +4872        function = from_args_list(args) if args else from_args_list.__self__(**kwargs)  # type: ignore
    +4873    else:
    +4874        kwargs = kwargs or {"expressions": args}
    +4875        function = Anonymous(this=name, **kwargs)
    +4876
    +4877    for error_message in function.error_messages(args):
    +4878        raise ValueError(error_message)
    +4879
    +4880    return function
     
    @@ -42473,11 +42683,11 @@ in order to help with type inference.
    -
    4857def true():
    -4858    """
    -4859    Returns a true Boolean expression.
    -4860    """
    -4861    return Boolean(this=True)
    +            
    4883def true():
    +4884    """
    +4885    Returns a true Boolean expression.
    +4886    """
    +4887    return Boolean(this=True)
     
    @@ -42497,11 +42707,11 @@ in order to help with type inference.
    -
    4864def false():
    -4865    """
    -4866    Returns a false Boolean expression.
    -4867    """
    -4868    return Boolean(this=False)
    +            
    4890def false():
    +4891    """
    +4892    Returns a false Boolean expression.
    +4893    """
    +4894    return Boolean(this=False)
     
    @@ -42521,11 +42731,11 @@ in order to help with type inference.
    -
    4871def null():
    -4872    """
    -4873    Returns a Null expression.
    -4874    """
    -4875    return Null()
    +            
    4897def null():
    +4898    """
    +4899    Returns a Null expression.
    +4900    """
    +4901    return Null()
     
    diff --git a/docs/sqlglot/generator.html b/docs/sqlglot/generator.html index d59ad49..8a2c709 100644 --- a/docs/sqlglot/generator.html +++ b/docs/sqlglot/generator.html @@ -237,6 +237,9 @@
  • pseudotype_sql
  • +
  • + returning_sql +
  • rowformatdelimitedproperty_sql
  • @@ -540,6 +543,9 @@
  • div_sql
  • +
  • + floatdiv_sql +
  • overlaps_sql
  • @@ -800,1862 +806,1888 @@
    109 # Whether or not create function uses an AS before the RETURN 110 CREATE_FUNCTION_RETURN_AS = True 111 - 112 TYPE_MAPPING = { - 113 exp.DataType.Type.NCHAR: "CHAR", - 114 exp.DataType.Type.NVARCHAR: "VARCHAR", - 115 exp.DataType.Type.MEDIUMTEXT: "TEXT", - 116 exp.DataType.Type.LONGTEXT: "TEXT", - 117 exp.DataType.Type.MEDIUMBLOB: "BLOB", - 118 exp.DataType.Type.LONGBLOB: "BLOB", - 119 exp.DataType.Type.INET: "INET", - 120 } - 121 - 122 STAR_MAPPING = { - 123 "except": "EXCEPT", - 124 "replace": "REPLACE", - 125 } - 126 - 127 TOKEN_MAPPING: t.Dict[TokenType, str] = {} - 128 - 129 STRUCT_DELIMITER = ("<", ">") - 130 - 131 PARAMETER_TOKEN = "@" + 112 # Whether or not to treat the division operator "/" as integer division + 113 INTEGER_DIVISION = True + 114 + 115 # Whether or not MERGE ... WHEN MATCHED BY SOURCE is allowed + 116 MATCHED_BY_SOURCE = True + 117 + 118 TYPE_MAPPING = { + 119 exp.DataType.Type.NCHAR: "CHAR", + 120 exp.DataType.Type.NVARCHAR: "VARCHAR", + 121 exp.DataType.Type.MEDIUMTEXT: "TEXT", + 122 exp.DataType.Type.LONGTEXT: "TEXT", + 123 exp.DataType.Type.MEDIUMBLOB: "BLOB", + 124 exp.DataType.Type.LONGBLOB: "BLOB", + 125 exp.DataType.Type.INET: "INET", + 126 } + 127 + 128 STAR_MAPPING = { + 129 "except": "EXCEPT", + 130 "replace": "REPLACE", + 131 } 132 - 133 PROPERTIES_LOCATION = { - 134 exp.AfterJournalProperty: exp.Properties.Location.POST_NAME, - 135 exp.AlgorithmProperty: exp.Properties.Location.POST_CREATE, - 136 exp.AutoIncrementProperty: exp.Properties.Location.POST_SCHEMA, - 137 exp.BlockCompressionProperty: exp.Properties.Location.POST_NAME, - 138 exp.CharacterSetProperty: exp.Properties.Location.POST_SCHEMA, - 139 exp.ChecksumProperty: exp.Properties.Location.POST_NAME, - 140 exp.CollateProperty: exp.Properties.Location.POST_SCHEMA, - 141 exp.Cluster: exp.Properties.Location.POST_SCHEMA, - 142 exp.DataBlocksizeProperty: exp.Properties.Location.POST_NAME, - 143 exp.DefinerProperty: exp.Properties.Location.POST_CREATE, - 144 exp.DistKeyProperty: exp.Properties.Location.POST_SCHEMA, - 145 exp.DistStyleProperty: exp.Properties.Location.POST_SCHEMA, - 146 exp.EngineProperty: exp.Properties.Location.POST_SCHEMA, - 147 exp.ExecuteAsProperty: exp.Properties.Location.POST_SCHEMA, - 148 exp.ExternalProperty: exp.Properties.Location.POST_CREATE, - 149 exp.FallbackProperty: exp.Properties.Location.POST_NAME, - 150 exp.FileFormatProperty: exp.Properties.Location.POST_WITH, - 151 exp.FreespaceProperty: exp.Properties.Location.POST_NAME, - 152 exp.IsolatedLoadingProperty: exp.Properties.Location.POST_NAME, - 153 exp.JournalProperty: exp.Properties.Location.POST_NAME, - 154 exp.LanguageProperty: exp.Properties.Location.POST_SCHEMA, - 155 exp.LikeProperty: exp.Properties.Location.POST_SCHEMA, - 156 exp.LocationProperty: exp.Properties.Location.POST_SCHEMA, - 157 exp.LockingProperty: exp.Properties.Location.POST_ALIAS, - 158 exp.LogProperty: exp.Properties.Location.POST_NAME, - 159 exp.MaterializedProperty: exp.Properties.Location.POST_CREATE, - 160 exp.MergeBlockRatioProperty: exp.Properties.Location.POST_NAME, - 161 exp.NoPrimaryIndexProperty: exp.Properties.Location.POST_EXPRESSION, - 162 exp.OnCommitProperty: exp.Properties.Location.POST_EXPRESSION, - 163 exp.PartitionedByProperty: exp.Properties.Location.POST_WITH, - 164 exp.Property: exp.Properties.Location.POST_WITH, - 165 exp.ReturnsProperty: exp.Properties.Location.POST_SCHEMA, - 166 exp.RowFormatDelimitedProperty: exp.Properties.Location.POST_SCHEMA, - 167 exp.RowFormatSerdeProperty: exp.Properties.Location.POST_SCHEMA, - 168 exp.SchemaCommentProperty: exp.Properties.Location.POST_SCHEMA, - 169 exp.SerdeProperties: exp.Properties.Location.POST_SCHEMA, - 170 exp.SetProperty: exp.Properties.Location.POST_CREATE, - 171 exp.SortKeyProperty: exp.Properties.Location.POST_SCHEMA, - 172 exp.SqlSecurityProperty: exp.Properties.Location.POST_CREATE, - 173 exp.TableFormatProperty: exp.Properties.Location.POST_WITH, - 174 exp.TemporaryProperty: exp.Properties.Location.POST_CREATE, - 175 exp.TransientProperty: exp.Properties.Location.POST_CREATE, - 176 exp.VolatilityProperty: exp.Properties.Location.POST_SCHEMA, - 177 exp.WithDataProperty: exp.Properties.Location.POST_EXPRESSION, - 178 exp.WithJournalTableProperty: exp.Properties.Location.POST_NAME, - 179 } - 180 - 181 WITH_SEPARATED_COMMENTS = (exp.Select, exp.From, exp.Where, exp.Binary) - 182 SENTINEL_LINE_BREAK = "__SQLGLOT__LB__" - 183 - 184 __slots__ = ( - 185 "time_mapping", - 186 "time_trie", - 187 "pretty", - 188 "quote_start", - 189 "quote_end", - 190 "identifier_start", - 191 "identifier_end", - 192 "identify", - 193 "normalize", - 194 "string_escape", - 195 "identifier_escape", - 196 "pad", - 197 "index_offset", - 198 "unnest_column_only", - 199 "alias_post_tablesample", - 200 "normalize_functions", - 201 "unsupported_level", - 202 "unsupported_messages", - 203 "null_ordering", - 204 "max_unsupported", - 205 "_indent", - 206 "_escaped_quote_end", - 207 "_escaped_identifier_end", - 208 "_leading_comma", - 209 "_max_text_width", - 210 "_comments", - 211 ) - 212 - 213 def __init__( - 214 self, - 215 time_mapping=None, - 216 time_trie=None, - 217 pretty=None, - 218 quote_start=None, - 219 quote_end=None, - 220 identifier_start=None, - 221 identifier_end=None, - 222 identify=False, - 223 normalize=False, - 224 string_escape=None, - 225 identifier_escape=None, - 226 pad=2, - 227 indent=2, - 228 index_offset=0, - 229 unnest_column_only=False, - 230 alias_post_tablesample=False, - 231 normalize_functions="upper", - 232 unsupported_level=ErrorLevel.WARN, - 233 null_ordering=None, - 234 max_unsupported=3, - 235 leading_comma=False, - 236 max_text_width=80, - 237 comments=True, - 238 ): - 239 import sqlglot - 240 - 241 self.time_mapping = time_mapping or {} - 242 self.time_trie = time_trie - 243 self.pretty = pretty if pretty is not None else sqlglot.pretty - 244 self.quote_start = quote_start or "'" - 245 self.quote_end = quote_end or "'" - 246 self.identifier_start = identifier_start or '"' - 247 self.identifier_end = identifier_end or '"' - 248 self.identify = identify - 249 self.normalize = normalize - 250 self.string_escape = string_escape or "'" - 251 self.identifier_escape = identifier_escape or '"' - 252 self.pad = pad - 253 self.index_offset = index_offset - 254 self.unnest_column_only = unnest_column_only - 255 self.alias_post_tablesample = alias_post_tablesample - 256 self.normalize_functions = normalize_functions - 257 self.unsupported_level = unsupported_level - 258 self.unsupported_messages = [] - 259 self.max_unsupported = max_unsupported - 260 self.null_ordering = null_ordering - 261 self._indent = indent - 262 self._escaped_quote_end = self.string_escape + self.quote_end - 263 self._escaped_identifier_end = self.identifier_escape + self.identifier_end - 264 self._leading_comma = leading_comma - 265 self._max_text_width = max_text_width - 266 self._comments = comments - 267 - 268 def generate(self, expression: t.Optional[exp.Expression]) -> str: - 269 """ - 270 Generates a SQL string by interpreting the given syntax tree. - 271 - 272 Args - 273 expression: the syntax tree. - 274 - 275 Returns - 276 the SQL string. - 277 """ - 278 self.unsupported_messages = [] - 279 sql = self.sql(expression).strip() + 133 TOKEN_MAPPING: t.Dict[TokenType, str] = {} + 134 + 135 STRUCT_DELIMITER = ("<", ">") + 136 + 137 PARAMETER_TOKEN = "@" + 138 + 139 PROPERTIES_LOCATION = { + 140 exp.AfterJournalProperty: exp.Properties.Location.POST_NAME, + 141 exp.AlgorithmProperty: exp.Properties.Location.POST_CREATE, + 142 exp.AutoIncrementProperty: exp.Properties.Location.POST_SCHEMA, + 143 exp.BlockCompressionProperty: exp.Properties.Location.POST_NAME, + 144 exp.CharacterSetProperty: exp.Properties.Location.POST_SCHEMA, + 145 exp.ChecksumProperty: exp.Properties.Location.POST_NAME, + 146 exp.CollateProperty: exp.Properties.Location.POST_SCHEMA, + 147 exp.Cluster: exp.Properties.Location.POST_SCHEMA, + 148 exp.DataBlocksizeProperty: exp.Properties.Location.POST_NAME, + 149 exp.DefinerProperty: exp.Properties.Location.POST_CREATE, + 150 exp.DistKeyProperty: exp.Properties.Location.POST_SCHEMA, + 151 exp.DistStyleProperty: exp.Properties.Location.POST_SCHEMA, + 152 exp.EngineProperty: exp.Properties.Location.POST_SCHEMA, + 153 exp.ExecuteAsProperty: exp.Properties.Location.POST_SCHEMA, + 154 exp.ExternalProperty: exp.Properties.Location.POST_CREATE, + 155 exp.FallbackProperty: exp.Properties.Location.POST_NAME, + 156 exp.FileFormatProperty: exp.Properties.Location.POST_WITH, + 157 exp.FreespaceProperty: exp.Properties.Location.POST_NAME, + 158 exp.IsolatedLoadingProperty: exp.Properties.Location.POST_NAME, + 159 exp.JournalProperty: exp.Properties.Location.POST_NAME, + 160 exp.LanguageProperty: exp.Properties.Location.POST_SCHEMA, + 161 exp.LikeProperty: exp.Properties.Location.POST_SCHEMA, + 162 exp.LocationProperty: exp.Properties.Location.POST_SCHEMA, + 163 exp.LockingProperty: exp.Properties.Location.POST_ALIAS, + 164 exp.LogProperty: exp.Properties.Location.POST_NAME, + 165 exp.MaterializedProperty: exp.Properties.Location.POST_CREATE, + 166 exp.MergeBlockRatioProperty: exp.Properties.Location.POST_NAME, + 167 exp.NoPrimaryIndexProperty: exp.Properties.Location.POST_EXPRESSION, + 168 exp.OnCommitProperty: exp.Properties.Location.POST_EXPRESSION, + 169 exp.PartitionedByProperty: exp.Properties.Location.POST_WITH, + 170 exp.Property: exp.Properties.Location.POST_WITH, + 171 exp.ReturnsProperty: exp.Properties.Location.POST_SCHEMA, + 172 exp.RowFormatDelimitedProperty: exp.Properties.Location.POST_SCHEMA, + 173 exp.RowFormatSerdeProperty: exp.Properties.Location.POST_SCHEMA, + 174 exp.SchemaCommentProperty: exp.Properties.Location.POST_SCHEMA, + 175 exp.SerdeProperties: exp.Properties.Location.POST_SCHEMA, + 176 exp.SetProperty: exp.Properties.Location.POST_CREATE, + 177 exp.SortKeyProperty: exp.Properties.Location.POST_SCHEMA, + 178 exp.SqlSecurityProperty: exp.Properties.Location.POST_CREATE, + 179 exp.TableFormatProperty: exp.Properties.Location.POST_WITH, + 180 exp.TemporaryProperty: exp.Properties.Location.POST_CREATE, + 181 exp.TransientProperty: exp.Properties.Location.POST_CREATE, + 182 exp.VolatilityProperty: exp.Properties.Location.POST_SCHEMA, + 183 exp.WithDataProperty: exp.Properties.Location.POST_EXPRESSION, + 184 exp.WithJournalTableProperty: exp.Properties.Location.POST_NAME, + 185 } + 186 + 187 WITH_SEPARATED_COMMENTS = (exp.Select, exp.From, exp.Where, exp.Binary) + 188 SENTINEL_LINE_BREAK = "__SQLGLOT__LB__" + 189 + 190 __slots__ = ( + 191 "time_mapping", + 192 "time_trie", + 193 "pretty", + 194 "quote_start", + 195 "quote_end", + 196 "identifier_start", + 197 "identifier_end", + 198 "identify", + 199 "normalize", + 200 "string_escape", + 201 "identifier_escape", + 202 "pad", + 203 "index_offset", + 204 "unnest_column_only", + 205 "alias_post_tablesample", + 206 "normalize_functions", + 207 "unsupported_level", + 208 "unsupported_messages", + 209 "null_ordering", + 210 "max_unsupported", + 211 "_indent", + 212 "_escaped_quote_end", + 213 "_escaped_identifier_end", + 214 "_leading_comma", + 215 "_max_text_width", + 216 "_comments", + 217 ) + 218 + 219 def __init__( + 220 self, + 221 time_mapping=None, + 222 time_trie=None, + 223 pretty=None, + 224 quote_start=None, + 225 quote_end=None, + 226 identifier_start=None, + 227 identifier_end=None, + 228 identify=False, + 229 normalize=False, + 230 string_escape=None, + 231 identifier_escape=None, + 232 pad=2, + 233 indent=2, + 234 index_offset=0, + 235 unnest_column_only=False, + 236 alias_post_tablesample=False, + 237 normalize_functions="upper", + 238 unsupported_level=ErrorLevel.WARN, + 239 null_ordering=None, + 240 max_unsupported=3, + 241 leading_comma=False, + 242 max_text_width=80, + 243 comments=True, + 244 ): + 245 import sqlglot + 246 + 247 self.time_mapping = time_mapping or {} + 248 self.time_trie = time_trie + 249 self.pretty = pretty if pretty is not None else sqlglot.pretty + 250 self.quote_start = quote_start or "'" + 251 self.quote_end = quote_end or "'" + 252 self.identifier_start = identifier_start or '"' + 253 self.identifier_end = identifier_end or '"' + 254 self.identify = identify + 255 self.normalize = normalize + 256 self.string_escape = string_escape or "'" + 257 self.identifier_escape = identifier_escape or '"' + 258 self.pad = pad + 259 self.index_offset = index_offset + 260 self.unnest_column_only = unnest_column_only + 261 self.alias_post_tablesample = alias_post_tablesample + 262 self.normalize_functions = normalize_functions + 263 self.unsupported_level = unsupported_level + 264 self.unsupported_messages = [] + 265 self.max_unsupported = max_unsupported + 266 self.null_ordering = null_ordering + 267 self._indent = indent + 268 self._escaped_quote_end = self.string_escape + self.quote_end + 269 self._escaped_identifier_end = self.identifier_escape + self.identifier_end + 270 self._leading_comma = leading_comma + 271 self._max_text_width = max_text_width + 272 self._comments = comments + 273 + 274 def generate(self, expression: t.Optional[exp.Expression]) -> str: + 275 """ + 276 Generates a SQL string by interpreting the given syntax tree. + 277 + 278 Args + 279 expression: the syntax tree. 280 - 281 if self.unsupported_level == ErrorLevel.IGNORE: - 282 return sql - 283 - 284 if self.unsupported_level == ErrorLevel.WARN: - 285 for msg in self.unsupported_messages: - 286 logger.warning(msg) - 287 elif self.unsupported_level == ErrorLevel.RAISE and self.unsupported_messages: - 288 raise UnsupportedError(concat_messages(self.unsupported_messages, self.max_unsupported)) + 281 Returns + 282 the SQL string. + 283 """ + 284 self.unsupported_messages = [] + 285 sql = self.sql(expression).strip() + 286 + 287 if self.unsupported_level == ErrorLevel.IGNORE: + 288 return sql 289 - 290 if self.pretty: - 291 sql = sql.replace(self.SENTINEL_LINE_BREAK, "\n") - 292 return sql - 293 - 294 def unsupported(self, message: str) -> None: - 295 if self.unsupported_level == ErrorLevel.IMMEDIATE: - 296 raise UnsupportedError(message) - 297 self.unsupported_messages.append(message) - 298 - 299 def sep(self, sep: str = " ") -> str: - 300 return f"{sep.strip()}\n" if self.pretty else sep - 301 - 302 def seg(self, sql: str, sep: str = " ") -> str: - 303 return f"{self.sep(sep)}{sql}" + 290 if self.unsupported_level == ErrorLevel.WARN: + 291 for msg in self.unsupported_messages: + 292 logger.warning(msg) + 293 elif self.unsupported_level == ErrorLevel.RAISE and self.unsupported_messages: + 294 raise UnsupportedError(concat_messages(self.unsupported_messages, self.max_unsupported)) + 295 + 296 if self.pretty: + 297 sql = sql.replace(self.SENTINEL_LINE_BREAK, "\n") + 298 return sql + 299 + 300 def unsupported(self, message: str) -> None: + 301 if self.unsupported_level == ErrorLevel.IMMEDIATE: + 302 raise UnsupportedError(message) + 303 self.unsupported_messages.append(message) 304 - 305 def pad_comment(self, comment: str) -> str: - 306 comment = " " + comment if comment[0].strip() else comment - 307 comment = comment + " " if comment[-1].strip() else comment - 308 return comment - 309 - 310 def maybe_comment(self, sql: str, expression: exp.Expression) -> str: - 311 comments = expression.comments if self._comments else None - 312 - 313 if not comments: - 314 return sql + 305 def sep(self, sep: str = " ") -> str: + 306 return f"{sep.strip()}\n" if self.pretty else sep + 307 + 308 def seg(self, sql: str, sep: str = " ") -> str: + 309 return f"{self.sep(sep)}{sql}" + 310 + 311 def pad_comment(self, comment: str) -> str: + 312 comment = " " + comment if comment[0].strip() else comment + 313 comment = comment + " " if comment[-1].strip() else comment + 314 return comment 315 - 316 sep = "\n" if self.pretty else " " - 317 comments_sql = sep.join( - 318 f"/*{self.pad_comment(comment)}*/" for comment in comments if comment - 319 ) - 320 - 321 if not comments_sql: - 322 return sql - 323 - 324 if isinstance(expression, self.WITH_SEPARATED_COMMENTS): - 325 return f"{comments_sql}{self.sep()}{sql}" + 316 def maybe_comment(self, sql: str, expression: exp.Expression) -> str: + 317 comments = expression.comments if self._comments else None + 318 + 319 if not comments: + 320 return sql + 321 + 322 sep = "\n" if self.pretty else " " + 323 comments_sql = sep.join( + 324 f"/*{self.pad_comment(comment)}*/" for comment in comments if comment + 325 ) 326 - 327 return f"{sql} {comments_sql}" - 328 - 329 def wrap(self, expression: exp.Expression | str) -> str: - 330 this_sql = self.indent( - 331 self.sql(expression) - 332 if isinstance(expression, (exp.Select, exp.Union)) - 333 else self.sql(expression, "this"), - 334 level=1, - 335 pad=0, - 336 ) - 337 return f"({self.sep('')}{this_sql}{self.seg(')', sep='')}" - 338 - 339 def no_identify(self, func: t.Callable[..., str], *args, **kwargs) -> str: - 340 original = self.identify - 341 self.identify = False - 342 result = func(*args, **kwargs) - 343 self.identify = original - 344 return result - 345 - 346 def normalize_func(self, name: str) -> str: - 347 if self.normalize_functions == "upper": - 348 return name.upper() - 349 if self.normalize_functions == "lower": - 350 return name.lower() - 351 return name - 352 - 353 def indent( - 354 self, - 355 sql: str, - 356 level: int = 0, - 357 pad: t.Optional[int] = None, - 358 skip_first: bool = False, - 359 skip_last: bool = False, - 360 ) -> str: - 361 if not self.pretty: - 362 return sql - 363 - 364 pad = self.pad if pad is None else pad - 365 lines = sql.split("\n") - 366 - 367 return "\n".join( - 368 line - 369 if (skip_first and i == 0) or (skip_last and i == len(lines) - 1) - 370 else f"{' ' * (level * self._indent + pad)}{line}" - 371 for i, line in enumerate(lines) - 372 ) - 373 - 374 def sql( - 375 self, - 376 expression: t.Optional[str | exp.Expression], - 377 key: t.Optional[str] = None, - 378 comment: bool = True, - 379 ) -> str: - 380 if not expression: - 381 return "" - 382 - 383 if isinstance(expression, str): - 384 return expression - 385 - 386 if key: - 387 return self.sql(expression.args.get(key)) + 327 if not comments_sql: + 328 return sql + 329 + 330 if isinstance(expression, self.WITH_SEPARATED_COMMENTS): + 331 return f"{comments_sql}{self.sep()}{sql}" + 332 + 333 return f"{sql} {comments_sql}" + 334 + 335 def wrap(self, expression: exp.Expression | str) -> str: + 336 this_sql = self.indent( + 337 self.sql(expression) + 338 if isinstance(expression, (exp.Select, exp.Union)) + 339 else self.sql(expression, "this"), + 340 level=1, + 341 pad=0, + 342 ) + 343 return f"({self.sep('')}{this_sql}{self.seg(')', sep='')}" + 344 + 345 def no_identify(self, func: t.Callable[..., str], *args, **kwargs) -> str: + 346 original = self.identify + 347 self.identify = False + 348 result = func(*args, **kwargs) + 349 self.identify = original + 350 return result + 351 + 352 def normalize_func(self, name: str) -> str: + 353 if self.normalize_functions == "upper": + 354 return name.upper() + 355 if self.normalize_functions == "lower": + 356 return name.lower() + 357 return name + 358 + 359 def indent( + 360 self, + 361 sql: str, + 362 level: int = 0, + 363 pad: t.Optional[int] = None, + 364 skip_first: bool = False, + 365 skip_last: bool = False, + 366 ) -> str: + 367 if not self.pretty: + 368 return sql + 369 + 370 pad = self.pad if pad is None else pad + 371 lines = sql.split("\n") + 372 + 373 return "\n".join( + 374 line + 375 if (skip_first and i == 0) or (skip_last and i == len(lines) - 1) + 376 else f"{' ' * (level * self._indent + pad)}{line}" + 377 for i, line in enumerate(lines) + 378 ) + 379 + 380 def sql( + 381 self, + 382 expression: t.Optional[str | exp.Expression], + 383 key: t.Optional[str] = None, + 384 comment: bool = True, + 385 ) -> str: + 386 if not expression: + 387 return "" 388 - 389 transform = self.TRANSFORMS.get(expression.__class__) - 390 - 391 if callable(transform): - 392 sql = transform(self, expression) - 393 elif transform: - 394 sql = transform - 395 elif isinstance(expression, exp.Expression): - 396 exp_handler_name = f"{expression.key}_sql" - 397 - 398 if hasattr(self, exp_handler_name): - 399 sql = getattr(self, exp_handler_name)(expression) - 400 elif isinstance(expression, exp.Func): - 401 sql = self.function_fallback_sql(expression) - 402 elif isinstance(expression, exp.Property): - 403 sql = self.property_sql(expression) - 404 else: - 405 raise ValueError(f"Unsupported expression type {expression.__class__.__name__}") - 406 else: - 407 raise ValueError(f"Expected an Expression. Received {type(expression)}: {expression}") - 408 - 409 return self.maybe_comment(sql, expression) if self._comments and comment else sql - 410 - 411 def uncache_sql(self, expression: exp.Uncache) -> str: - 412 table = self.sql(expression, "this") - 413 exists_sql = " IF EXISTS" if expression.args.get("exists") else "" - 414 return f"UNCACHE TABLE{exists_sql} {table}" - 415 - 416 def cache_sql(self, expression: exp.Cache) -> str: - 417 lazy = " LAZY" if expression.args.get("lazy") else "" + 389 if isinstance(expression, str): + 390 return expression + 391 + 392 if key: + 393 return self.sql(expression.args.get(key)) + 394 + 395 transform = self.TRANSFORMS.get(expression.__class__) + 396 + 397 if callable(transform): + 398 sql = transform(self, expression) + 399 elif transform: + 400 sql = transform + 401 elif isinstance(expression, exp.Expression): + 402 exp_handler_name = f"{expression.key}_sql" + 403 + 404 if hasattr(self, exp_handler_name): + 405 sql = getattr(self, exp_handler_name)(expression) + 406 elif isinstance(expression, exp.Func): + 407 sql = self.function_fallback_sql(expression) + 408 elif isinstance(expression, exp.Property): + 409 sql = self.property_sql(expression) + 410 else: + 411 raise ValueError(f"Unsupported expression type {expression.__class__.__name__}") + 412 else: + 413 raise ValueError(f"Expected an Expression. Received {type(expression)}: {expression}") + 414 + 415 return self.maybe_comment(sql, expression) if self._comments and comment else sql + 416 + 417 def uncache_sql(self, expression: exp.Uncache) -> str: 418 table = self.sql(expression, "this") - 419 options = expression.args.get("options") - 420 options = f" OPTIONS({self.sql(options[0])} = {self.sql(options[1])})" if options else "" - 421 sql = self.sql(expression, "expression") - 422 sql = f" AS{self.sep()}{sql}" if sql else "" - 423 sql = f"CACHE{lazy} TABLE {table}{options}{sql}" - 424 return self.prepend_ctes(expression, sql) - 425 - 426 def characterset_sql(self, expression: exp.CharacterSet) -> str: - 427 if isinstance(expression.parent, exp.Cast): - 428 return f"CHAR CHARACTER SET {self.sql(expression, 'this')}" - 429 default = "DEFAULT " if expression.args.get("default") else "" - 430 return f"{default}CHARACTER SET={self.sql(expression, 'this')}" + 419 exists_sql = " IF EXISTS" if expression.args.get("exists") else "" + 420 return f"UNCACHE TABLE{exists_sql} {table}" + 421 + 422 def cache_sql(self, expression: exp.Cache) -> str: + 423 lazy = " LAZY" if expression.args.get("lazy") else "" + 424 table = self.sql(expression, "this") + 425 options = expression.args.get("options") + 426 options = f" OPTIONS({self.sql(options[0])} = {self.sql(options[1])})" if options else "" + 427 sql = self.sql(expression, "expression") + 428 sql = f" AS{self.sep()}{sql}" if sql else "" + 429 sql = f"CACHE{lazy} TABLE {table}{options}{sql}" + 430 return self.prepend_ctes(expression, sql) 431 - 432 def column_sql(self, expression: exp.Column) -> str: - 433 return ".".join( - 434 self.sql(part) - 435 for part in ( - 436 expression.args.get("catalog"), - 437 expression.args.get("db"), - 438 expression.args.get("table"), - 439 expression.args.get("this"), - 440 ) - 441 if part - 442 ) - 443 - 444 def columndef_sql(self, expression: exp.ColumnDef) -> str: - 445 column = self.sql(expression, "this") - 446 kind = self.sql(expression, "kind") - 447 constraints = self.expressions(expression, key="constraints", sep=" ", flat=True) - 448 exists = "IF NOT EXISTS " if expression.args.get("exists") else "" - 449 kind = f" {kind}" if kind else "" - 450 constraints = f" {constraints}" if constraints else "" - 451 - 452 return f"{exists}{column}{kind}{constraints}" - 453 - 454 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: - 455 this = self.sql(expression, "this") - 456 kind_sql = self.sql(expression, "kind") - 457 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql - 458 - 459 def autoincrementcolumnconstraint_sql(self, _) -> str: - 460 return self.token_sql(TokenType.AUTO_INCREMENT) - 461 - 462 def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str: - 463 if isinstance(expression.this, list): - 464 this = self.wrap(self.expressions(expression, key="this", flat=True)) - 465 else: - 466 this = self.sql(expression, "this") + 432 def characterset_sql(self, expression: exp.CharacterSet) -> str: + 433 if isinstance(expression.parent, exp.Cast): + 434 return f"CHAR CHARACTER SET {self.sql(expression, 'this')}" + 435 default = "DEFAULT " if expression.args.get("default") else "" + 436 return f"{default}CHARACTER SET={self.sql(expression, 'this')}" + 437 + 438 def column_sql(self, expression: exp.Column) -> str: + 439 return ".".join( + 440 self.sql(part) + 441 for part in ( + 442 expression.args.get("catalog"), + 443 expression.args.get("db"), + 444 expression.args.get("table"), + 445 expression.args.get("this"), + 446 ) + 447 if part + 448 ) + 449 + 450 def columndef_sql(self, expression: exp.ColumnDef) -> str: + 451 column = self.sql(expression, "this") + 452 kind = self.sql(expression, "kind") + 453 constraints = self.expressions(expression, key="constraints", sep=" ", flat=True) + 454 exists = "IF NOT EXISTS " if expression.args.get("exists") else "" + 455 kind = f" {kind}" if kind else "" + 456 constraints = f" {constraints}" if constraints else "" + 457 + 458 return f"{exists}{column}{kind}{constraints}" + 459 + 460 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: + 461 this = self.sql(expression, "this") + 462 kind_sql = self.sql(expression, "kind") + 463 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql + 464 + 465 def autoincrementcolumnconstraint_sql(self, _) -> str: + 466 return self.token_sql(TokenType.AUTO_INCREMENT) 467 - 468 return f"COMPRESS {this}" - 469 - 470 def generatedasidentitycolumnconstraint_sql( - 471 self, expression: exp.GeneratedAsIdentityColumnConstraint - 472 ) -> str: - 473 this = "" - 474 if expression.this is not None: - 475 this = " ALWAYS " if expression.this else " BY DEFAULT " - 476 start = expression.args.get("start") - 477 start = f"START WITH {start}" if start else "" - 478 increment = expression.args.get("increment") - 479 increment = f" INCREMENT BY {increment}" if increment else "" - 480 minvalue = expression.args.get("minvalue") - 481 minvalue = f" MINVALUE {minvalue}" if minvalue else "" - 482 maxvalue = expression.args.get("maxvalue") - 483 maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else "" - 484 cycle = expression.args.get("cycle") - 485 cycle_sql = "" - 486 if cycle is not None: - 487 cycle_sql = f"{' NO' if not cycle else ''} CYCLE" - 488 cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql - 489 sequence_opts = "" - 490 if start or increment or cycle_sql: - 491 sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}" - 492 sequence_opts = f" ({sequence_opts.strip()})" - 493 return f"GENERATED{this}AS IDENTITY{sequence_opts}" - 494 - 495 def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str: - 496 return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL" - 497 - 498 def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str: - 499 desc = expression.args.get("desc") - 500 if desc is not None: - 501 return f"PRIMARY KEY{' DESC' if desc else ' ASC'}" - 502 return f"PRIMARY KEY" + 468 def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str: + 469 if isinstance(expression.this, list): + 470 this = self.wrap(self.expressions(expression, key="this", flat=True)) + 471 else: + 472 this = self.sql(expression, "this") + 473 + 474 return f"COMPRESS {this}" + 475 + 476 def generatedasidentitycolumnconstraint_sql( + 477 self, expression: exp.GeneratedAsIdentityColumnConstraint + 478 ) -> str: + 479 this = "" + 480 if expression.this is not None: + 481 this = " ALWAYS " if expression.this else " BY DEFAULT " + 482 start = expression.args.get("start") + 483 start = f"START WITH {start}" if start else "" + 484 increment = expression.args.get("increment") + 485 increment = f" INCREMENT BY {increment}" if increment else "" + 486 minvalue = expression.args.get("minvalue") + 487 minvalue = f" MINVALUE {minvalue}" if minvalue else "" + 488 maxvalue = expression.args.get("maxvalue") + 489 maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else "" + 490 cycle = expression.args.get("cycle") + 491 cycle_sql = "" + 492 if cycle is not None: + 493 cycle_sql = f"{' NO' if not cycle else ''} CYCLE" + 494 cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql + 495 sequence_opts = "" + 496 if start or increment or cycle_sql: + 497 sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}" + 498 sequence_opts = f" ({sequence_opts.strip()})" + 499 return f"GENERATED{this}AS IDENTITY{sequence_opts}" + 500 + 501 def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str: + 502 return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL" 503 - 504 def uniquecolumnconstraint_sql(self, _) -> str: - 505 return "UNIQUE" - 506 - 507 def create_sql(self, expression: exp.Create) -> str: - 508 kind = self.sql(expression, "kind").upper() - 509 properties = expression.args.get("properties") - 510 properties_exp = expression.copy() - 511 properties_locs = self.locate_properties(properties) if properties else {} - 512 if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get( - 513 exp.Properties.Location.POST_WITH - 514 ): - 515 properties_exp.set( - 516 "properties", - 517 exp.Properties( - 518 expressions=[ - 519 *properties_locs[exp.Properties.Location.POST_SCHEMA], - 520 *properties_locs[exp.Properties.Location.POST_WITH], - 521 ] - 522 ), - 523 ) - 524 if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME): - 525 this_name = self.sql(expression.this, "this") - 526 this_properties = self.properties( - 527 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]), - 528 wrapped=False, + 504 def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str: + 505 desc = expression.args.get("desc") + 506 if desc is not None: + 507 return f"PRIMARY KEY{' DESC' if desc else ' ASC'}" + 508 return f"PRIMARY KEY" + 509 + 510 def uniquecolumnconstraint_sql(self, _) -> str: + 511 return "UNIQUE" + 512 + 513 def create_sql(self, expression: exp.Create) -> str: + 514 kind = self.sql(expression, "kind").upper() + 515 properties = expression.args.get("properties") + 516 properties_exp = expression.copy() + 517 properties_locs = self.locate_properties(properties) if properties else {} + 518 if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get( + 519 exp.Properties.Location.POST_WITH + 520 ): + 521 properties_exp.set( + 522 "properties", + 523 exp.Properties( + 524 expressions=[ + 525 *properties_locs[exp.Properties.Location.POST_SCHEMA], + 526 *properties_locs[exp.Properties.Location.POST_WITH], + 527 ] + 528 ), 529 ) - 530 this_schema = f"({self.expressions(expression.this)})" - 531 this = f"{this_name}, {this_properties} {this_schema}" - 532 properties_sql = "" - 533 else: - 534 this = self.sql(expression, "this") - 535 properties_sql = self.sql(properties_exp, "properties") - 536 begin = " BEGIN" if expression.args.get("begin") else "" - 537 expression_sql = self.sql(expression, "expression") - 538 if expression_sql: - 539 expression_sql = f"{begin}{self.sep()}{expression_sql}" - 540 - 541 if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return): - 542 if properties_locs.get(exp.Properties.Location.POST_ALIAS): - 543 postalias_props_sql = self.properties( - 544 exp.Properties( - 545 expressions=properties_locs[exp.Properties.Location.POST_ALIAS] - 546 ), - 547 wrapped=False, - 548 ) - 549 expression_sql = f" AS {postalias_props_sql}{expression_sql}" - 550 else: - 551 expression_sql = f" AS{expression_sql}" - 552 - 553 postindex_props_sql = "" - 554 if properties_locs.get(exp.Properties.Location.POST_INDEX): - 555 postindex_props_sql = self.properties( - 556 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]), - 557 wrapped=False, - 558 prefix=" ", - 559 ) - 560 - 561 indexes = expression.args.get("indexes") - 562 if indexes: - 563 indexes_sql: t.List[str] = [] - 564 for index in indexes: - 565 ind_unique = " UNIQUE" if index.args.get("unique") else "" - 566 ind_primary = " PRIMARY" if index.args.get("primary") else "" - 567 ind_amp = " AMP" if index.args.get("amp") else "" - 568 ind_name = f" {index.name}" if index.name else "" - 569 ind_columns = ( - 570 f' ({self.expressions(index, key="columns", flat=True)})' - 571 if index.args.get("columns") - 572 else "" - 573 ) - 574 ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}" - 575 - 576 if indexes_sql: - 577 indexes_sql.append(ind_sql) - 578 else: - 579 indexes_sql.append( - 580 f"{ind_sql}{postindex_props_sql}" - 581 if index.args.get("primary") - 582 else f"{postindex_props_sql}{ind_sql}" - 583 ) - 584 - 585 index_sql = "".join(indexes_sql) - 586 else: - 587 index_sql = postindex_props_sql - 588 - 589 replace = " OR REPLACE" if expression.args.get("replace") else "" - 590 unique = " UNIQUE" if expression.args.get("unique") else "" - 591 volatile = " VOLATILE" if expression.args.get("volatile") else "" - 592 - 593 postcreate_props_sql = "" - 594 if properties_locs.get(exp.Properties.Location.POST_CREATE): - 595 postcreate_props_sql = self.properties( - 596 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]), - 597 sep=" ", - 598 prefix=" ", - 599 wrapped=False, - 600 ) - 601 - 602 modifiers = "".join((replace, unique, volatile, postcreate_props_sql)) - 603 - 604 postexpression_props_sql = "" - 605 if properties_locs.get(exp.Properties.Location.POST_EXPRESSION): - 606 postexpression_props_sql = self.properties( - 607 exp.Properties( - 608 expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION] - 609 ), - 610 sep=" ", - 611 prefix=" ", - 612 wrapped=False, - 613 ) - 614 - 615 exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else "" - 616 no_schema_binding = ( - 617 " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else "" - 618 ) - 619 - 620 expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}" - 621 return self.prepend_ctes(expression, expression_sql) - 622 - 623 def describe_sql(self, expression: exp.Describe) -> str: - 624 return f"DESCRIBE {self.sql(expression, 'this')}" + 530 if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME): + 531 this_name = self.sql(expression.this, "this") + 532 this_properties = self.properties( + 533 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]), + 534 wrapped=False, + 535 ) + 536 this_schema = f"({self.expressions(expression.this)})" + 537 this = f"{this_name}, {this_properties} {this_schema}" + 538 properties_sql = "" + 539 else: + 540 this = self.sql(expression, "this") + 541 properties_sql = self.sql(properties_exp, "properties") + 542 begin = " BEGIN" if expression.args.get("begin") else "" + 543 expression_sql = self.sql(expression, "expression") + 544 if expression_sql: + 545 expression_sql = f"{begin}{self.sep()}{expression_sql}" + 546 + 547 if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return): + 548 if properties_locs.get(exp.Properties.Location.POST_ALIAS): + 549 postalias_props_sql = self.properties( + 550 exp.Properties( + 551 expressions=properties_locs[exp.Properties.Location.POST_ALIAS] + 552 ), + 553 wrapped=False, + 554 ) + 555 expression_sql = f" AS {postalias_props_sql}{expression_sql}" + 556 else: + 557 expression_sql = f" AS{expression_sql}" + 558 + 559 postindex_props_sql = "" + 560 if properties_locs.get(exp.Properties.Location.POST_INDEX): + 561 postindex_props_sql = self.properties( + 562 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]), + 563 wrapped=False, + 564 prefix=" ", + 565 ) + 566 + 567 indexes = expression.args.get("indexes") + 568 if indexes: + 569 indexes_sql: t.List[str] = [] + 570 for index in indexes: + 571 ind_unique = " UNIQUE" if index.args.get("unique") else "" + 572 ind_primary = " PRIMARY" if index.args.get("primary") else "" + 573 ind_amp = " AMP" if index.args.get("amp") else "" + 574 ind_name = f" {index.name}" if index.name else "" + 575 ind_columns = ( + 576 f' ({self.expressions(index, key="columns", flat=True)})' + 577 if index.args.get("columns") + 578 else "" + 579 ) + 580 ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}" + 581 + 582 if indexes_sql: + 583 indexes_sql.append(ind_sql) + 584 else: + 585 indexes_sql.append( + 586 f"{ind_sql}{postindex_props_sql}" + 587 if index.args.get("primary") + 588 else f"{postindex_props_sql}{ind_sql}" + 589 ) + 590 + 591 index_sql = "".join(indexes_sql) + 592 else: + 593 index_sql = postindex_props_sql + 594 + 595 replace = " OR REPLACE" if expression.args.get("replace") else "" + 596 unique = " UNIQUE" if expression.args.get("unique") else "" + 597 volatile = " VOLATILE" if expression.args.get("volatile") else "" + 598 + 599 postcreate_props_sql = "" + 600 if properties_locs.get(exp.Properties.Location.POST_CREATE): + 601 postcreate_props_sql = self.properties( + 602 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]), + 603 sep=" ", + 604 prefix=" ", + 605 wrapped=False, + 606 ) + 607 + 608 modifiers = "".join((replace, unique, volatile, postcreate_props_sql)) + 609 + 610 postexpression_props_sql = "" + 611 if properties_locs.get(exp.Properties.Location.POST_EXPRESSION): + 612 postexpression_props_sql = self.properties( + 613 exp.Properties( + 614 expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION] + 615 ), + 616 sep=" ", + 617 prefix=" ", + 618 wrapped=False, + 619 ) + 620 + 621 exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else "" + 622 no_schema_binding = ( + 623 " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else "" + 624 ) 625 - 626 def prepend_ctes(self, expression: exp.Expression, sql: str) -> str: - 627 with_ = self.sql(expression, "with") - 628 if with_: - 629 sql = f"{with_}{self.sep()}{sql}" - 630 return sql + 626 expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}" + 627 return self.prepend_ctes(expression, expression_sql) + 628 + 629 def describe_sql(self, expression: exp.Describe) -> str: + 630 return f"DESCRIBE {self.sql(expression, 'this')}" 631 - 632 def with_sql(self, expression: exp.With) -> str: - 633 sql = self.expressions(expression, flat=True) - 634 recursive = "RECURSIVE " if expression.args.get("recursive") else "" - 635 - 636 return f"WITH {recursive}{sql}" + 632 def prepend_ctes(self, expression: exp.Expression, sql: str) -> str: + 633 with_ = self.sql(expression, "with") + 634 if with_: + 635 sql = f"{with_}{self.sep()}{sql}" + 636 return sql 637 - 638 def cte_sql(self, expression: exp.CTE) -> str: - 639 alias = self.sql(expression, "alias") - 640 return f"{alias} AS {self.wrap(expression)}" + 638 def with_sql(self, expression: exp.With) -> str: + 639 sql = self.expressions(expression, flat=True) + 640 recursive = "RECURSIVE " if expression.args.get("recursive") else "" 641 - 642 def tablealias_sql(self, expression: exp.TableAlias) -> str: - 643 alias = self.sql(expression, "this") - 644 columns = self.expressions(expression, key="columns", flat=True) - 645 columns = f"({columns})" if columns else "" - 646 return f"{alias}{columns}" + 642 return f"WITH {recursive}{sql}" + 643 + 644 def cte_sql(self, expression: exp.CTE) -> str: + 645 alias = self.sql(expression, "alias") + 646 return f"{alias} AS {self.wrap(expression)}" 647 - 648 def bitstring_sql(self, expression: exp.BitString) -> str: - 649 return self.sql(expression, "this") - 650 - 651 def hexstring_sql(self, expression: exp.HexString) -> str: - 652 return self.sql(expression, "this") + 648 def tablealias_sql(self, expression: exp.TableAlias) -> str: + 649 alias = self.sql(expression, "this") + 650 columns = self.expressions(expression, key="columns", flat=True) + 651 columns = f"({columns})" if columns else "" + 652 return f"{alias}{columns}" 653 - 654 def datatype_sql(self, expression: exp.DataType) -> str: - 655 type_value = expression.this - 656 type_sql = self.TYPE_MAPPING.get(type_value, type_value.value) - 657 nested = "" - 658 interior = self.expressions(expression, flat=True) - 659 values = "" - 660 if interior: - 661 if expression.args.get("nested"): - 662 nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}" - 663 if expression.args.get("values") is not None: - 664 delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")") - 665 values = ( - 666 f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}" - 667 ) - 668 else: - 669 nested = f"({interior})" - 670 - 671 return f"{type_sql}{nested}{values}" - 672 - 673 def directory_sql(self, expression: exp.Directory) -> str: - 674 local = "LOCAL " if expression.args.get("local") else "" - 675 row_format = self.sql(expression, "row_format") - 676 row_format = f" {row_format}" if row_format else "" - 677 return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}" + 654 def bitstring_sql(self, expression: exp.BitString) -> str: + 655 return self.sql(expression, "this") + 656 + 657 def hexstring_sql(self, expression: exp.HexString) -> str: + 658 return self.sql(expression, "this") + 659 + 660 def datatype_sql(self, expression: exp.DataType) -> str: + 661 type_value = expression.this + 662 type_sql = self.TYPE_MAPPING.get(type_value, type_value.value) + 663 nested = "" + 664 interior = self.expressions(expression, flat=True) + 665 values = "" + 666 if interior: + 667 if expression.args.get("nested"): + 668 nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}" + 669 if expression.args.get("values") is not None: + 670 delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")") + 671 values = ( + 672 f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}" + 673 ) + 674 else: + 675 nested = f"({interior})" + 676 + 677 return f"{type_sql}{nested}{values}" 678 - 679 def delete_sql(self, expression: exp.Delete) -> str: - 680 this = self.sql(expression, "this") - 681 this = f" FROM {this}" if this else "" - 682 using_sql = ( - 683 f" USING {self.expressions(expression, 'using', sep=', USING ')}" - 684 if expression.args.get("using") - 685 else "" - 686 ) - 687 where_sql = self.sql(expression, "where") - 688 sql = f"DELETE{this}{using_sql}{where_sql}" - 689 return self.prepend_ctes(expression, sql) - 690 - 691 def drop_sql(self, expression: exp.Drop) -> str: - 692 this = self.sql(expression, "this") - 693 kind = expression.args["kind"] - 694 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " - 695 temporary = " TEMPORARY" if expression.args.get("temporary") else "" - 696 materialized = " MATERIALIZED" if expression.args.get("materialized") else "" - 697 cascade = " CASCADE" if expression.args.get("cascade") else "" - 698 return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}" - 699 - 700 def except_sql(self, expression: exp.Except) -> str: - 701 return self.prepend_ctes( - 702 expression, - 703 self.set_operation(expression, self.except_op(expression)), - 704 ) - 705 - 706 def except_op(self, expression: exp.Except) -> str: - 707 return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}" - 708 - 709 def fetch_sql(self, expression: exp.Fetch) -> str: - 710 direction = expression.args.get("direction") - 711 direction = f" {direction.upper()}" if direction else "" - 712 count = expression.args.get("count") - 713 count = f" {count}" if count else "" - 714 return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY" + 679 def directory_sql(self, expression: exp.Directory) -> str: + 680 local = "LOCAL " if expression.args.get("local") else "" + 681 row_format = self.sql(expression, "row_format") + 682 row_format = f" {row_format}" if row_format else "" + 683 return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}" + 684 + 685 def delete_sql(self, expression: exp.Delete) -> str: + 686 this = self.sql(expression, "this") + 687 this = f" FROM {this}" if this else "" + 688 using_sql = ( + 689 f" USING {self.expressions(expression, 'using', sep=', USING ')}" + 690 if expression.args.get("using") + 691 else "" + 692 ) + 693 where_sql = self.sql(expression, "where") + 694 returning = self.sql(expression, "returning") + 695 sql = f"DELETE{this}{using_sql}{where_sql}{returning}" + 696 return self.prepend_ctes(expression, sql) + 697 + 698 def drop_sql(self, expression: exp.Drop) -> str: + 699 this = self.sql(expression, "this") + 700 kind = expression.args["kind"] + 701 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " + 702 temporary = " TEMPORARY" if expression.args.get("temporary") else "" + 703 materialized = " MATERIALIZED" if expression.args.get("materialized") else "" + 704 cascade = " CASCADE" if expression.args.get("cascade") else "" + 705 return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}" + 706 + 707 def except_sql(self, expression: exp.Except) -> str: + 708 return self.prepend_ctes( + 709 expression, + 710 self.set_operation(expression, self.except_op(expression)), + 711 ) + 712 + 713 def except_op(self, expression: exp.Except) -> str: + 714 return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}" 715 - 716 def filter_sql(self, expression: exp.Filter) -> str: - 717 this = self.sql(expression, "this") - 718 where = self.sql(expression, "expression")[1:] # where has a leading space - 719 return f"{this} FILTER({where})" - 720 - 721 def hint_sql(self, expression: exp.Hint) -> str: - 722 if self.sql(expression, "this"): - 723 self.unsupported("Hints are not supported") - 724 return "" - 725 - 726 def index_sql(self, expression: exp.Index) -> str: - 727 this = self.sql(expression, "this") - 728 table = self.sql(expression, "table") - 729 columns = self.sql(expression, "columns") - 730 return f"{this} ON {table} {columns}" - 731 - 732 def identifier_sql(self, expression: exp.Identifier) -> str: - 733 text = expression.name - 734 text = text.lower() if self.normalize else text - 735 text = text.replace(self.identifier_end, self._escaped_identifier_end) - 736 if expression.args.get("quoted") or self.identify: - 737 text = f"{self.identifier_start}{text}{self.identifier_end}" - 738 return text - 739 - 740 def national_sql(self, expression: exp.National) -> str: - 741 return f"N{self.sql(expression, 'this')}" - 742 - 743 def partition_sql(self, expression: exp.Partition) -> str: - 744 return f"PARTITION({self.expressions(expression)})" - 745 - 746 def properties_sql(self, expression: exp.Properties) -> str: - 747 root_properties = [] - 748 with_properties = [] + 716 def fetch_sql(self, expression: exp.Fetch) -> str: + 717 direction = expression.args.get("direction") + 718 direction = f" {direction.upper()}" if direction else "" + 719 count = expression.args.get("count") + 720 count = f" {count}" if count else "" + 721 return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY" + 722 + 723 def filter_sql(self, expression: exp.Filter) -> str: + 724 this = self.sql(expression, "this") + 725 where = self.sql(expression, "expression")[1:] # where has a leading space + 726 return f"{this} FILTER({where})" + 727 + 728 def hint_sql(self, expression: exp.Hint) -> str: + 729 if self.sql(expression, "this"): + 730 self.unsupported("Hints are not supported") + 731 return "" + 732 + 733 def index_sql(self, expression: exp.Index) -> str: + 734 this = self.sql(expression, "this") + 735 table = self.sql(expression, "table") + 736 columns = self.sql(expression, "columns") + 737 return f"{this} ON {table} {columns}" + 738 + 739 def identifier_sql(self, expression: exp.Identifier) -> str: + 740 text = expression.name + 741 text = text.lower() if self.normalize else text + 742 text = text.replace(self.identifier_end, self._escaped_identifier_end) + 743 if expression.args.get("quoted") or self.identify: + 744 text = f"{self.identifier_start}{text}{self.identifier_end}" + 745 return text + 746 + 747 def national_sql(self, expression: exp.National) -> str: + 748 return f"N{self.sql(expression, 'this')}" 749 - 750 for p in expression.expressions: - 751 p_loc = self.PROPERTIES_LOCATION[p.__class__] - 752 if p_loc == exp.Properties.Location.POST_WITH: - 753 with_properties.append(p) - 754 elif p_loc == exp.Properties.Location.POST_SCHEMA: - 755 root_properties.append(p) + 750 def partition_sql(self, expression: exp.Partition) -> str: + 751 return f"PARTITION({self.expressions(expression)})" + 752 + 753 def properties_sql(self, expression: exp.Properties) -> str: + 754 root_properties = [] + 755 with_properties = [] 756 - 757 return self.root_properties( - 758 exp.Properties(expressions=root_properties) - 759 ) + self.with_properties(exp.Properties(expressions=with_properties)) - 760 - 761 def root_properties(self, properties: exp.Properties) -> str: - 762 if properties.expressions: - 763 return self.sep() + self.expressions(properties, indent=False, sep=" ") - 764 return "" - 765 - 766 def properties( - 767 self, - 768 properties: exp.Properties, - 769 prefix: str = "", - 770 sep: str = ", ", - 771 suffix: str = "", - 772 wrapped: bool = True, - 773 ) -> str: - 774 if properties.expressions: - 775 expressions = self.expressions(properties, sep=sep, indent=False) - 776 expressions = self.wrap(expressions) if wrapped else expressions - 777 return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}" - 778 return "" - 779 - 780 def with_properties(self, properties: exp.Properties) -> str: - 781 return self.properties(properties, prefix=self.seg("WITH")) - 782 - 783 def locate_properties( - 784 self, properties: exp.Properties - 785 ) -> t.Dict[exp.Properties.Location, list[exp.Property]]: - 786 properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = { - 787 key: [] for key in exp.Properties.Location - 788 } + 757 for p in expression.expressions: + 758 p_loc = self.PROPERTIES_LOCATION[p.__class__] + 759 if p_loc == exp.Properties.Location.POST_WITH: + 760 with_properties.append(p) + 761 elif p_loc == exp.Properties.Location.POST_SCHEMA: + 762 root_properties.append(p) + 763 + 764 return self.root_properties( + 765 exp.Properties(expressions=root_properties) + 766 ) + self.with_properties(exp.Properties(expressions=with_properties)) + 767 + 768 def root_properties(self, properties: exp.Properties) -> str: + 769 if properties.expressions: + 770 return self.sep() + self.expressions(properties, indent=False, sep=" ") + 771 return "" + 772 + 773 def properties( + 774 self, + 775 properties: exp.Properties, + 776 prefix: str = "", + 777 sep: str = ", ", + 778 suffix: str = "", + 779 wrapped: bool = True, + 780 ) -> str: + 781 if properties.expressions: + 782 expressions = self.expressions(properties, sep=sep, indent=False) + 783 expressions = self.wrap(expressions) if wrapped else expressions + 784 return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}" + 785 return "" + 786 + 787 def with_properties(self, properties: exp.Properties) -> str: + 788 return self.properties(properties, prefix=self.seg("WITH")) 789 - 790 for p in properties.expressions: - 791 p_loc = self.PROPERTIES_LOCATION[p.__class__] - 792 if p_loc == exp.Properties.Location.POST_NAME: - 793 properties_locs[exp.Properties.Location.POST_NAME].append(p) - 794 elif p_loc == exp.Properties.Location.POST_INDEX: - 795 properties_locs[exp.Properties.Location.POST_INDEX].append(p) - 796 elif p_loc == exp.Properties.Location.POST_SCHEMA: - 797 properties_locs[exp.Properties.Location.POST_SCHEMA].append(p) - 798 elif p_loc == exp.Properties.Location.POST_WITH: - 799 properties_locs[exp.Properties.Location.POST_WITH].append(p) - 800 elif p_loc == exp.Properties.Location.POST_CREATE: - 801 properties_locs[exp.Properties.Location.POST_CREATE].append(p) - 802 elif p_loc == exp.Properties.Location.POST_ALIAS: - 803 properties_locs[exp.Properties.Location.POST_ALIAS].append(p) - 804 elif p_loc == exp.Properties.Location.POST_EXPRESSION: - 805 properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p) - 806 elif p_loc == exp.Properties.Location.UNSUPPORTED: - 807 self.unsupported(f"Unsupported property {p.key}") - 808 - 809 return properties_locs - 810 - 811 def property_sql(self, expression: exp.Property) -> str: - 812 property_cls = expression.__class__ - 813 if property_cls == exp.Property: - 814 return f"{expression.name}={self.sql(expression, 'value')}" + 790 def locate_properties( + 791 self, properties: exp.Properties + 792 ) -> t.Dict[exp.Properties.Location, list[exp.Property]]: + 793 properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = { + 794 key: [] for key in exp.Properties.Location + 795 } + 796 + 797 for p in properties.expressions: + 798 p_loc = self.PROPERTIES_LOCATION[p.__class__] + 799 if p_loc == exp.Properties.Location.POST_NAME: + 800 properties_locs[exp.Properties.Location.POST_NAME].append(p) + 801 elif p_loc == exp.Properties.Location.POST_INDEX: + 802 properties_locs[exp.Properties.Location.POST_INDEX].append(p) + 803 elif p_loc == exp.Properties.Location.POST_SCHEMA: + 804 properties_locs[exp.Properties.Location.POST_SCHEMA].append(p) + 805 elif p_loc == exp.Properties.Location.POST_WITH: + 806 properties_locs[exp.Properties.Location.POST_WITH].append(p) + 807 elif p_loc == exp.Properties.Location.POST_CREATE: + 808 properties_locs[exp.Properties.Location.POST_CREATE].append(p) + 809 elif p_loc == exp.Properties.Location.POST_ALIAS: + 810 properties_locs[exp.Properties.Location.POST_ALIAS].append(p) + 811 elif p_loc == exp.Properties.Location.POST_EXPRESSION: + 812 properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p) + 813 elif p_loc == exp.Properties.Location.UNSUPPORTED: + 814 self.unsupported(f"Unsupported property {p.key}") 815 - 816 property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls) - 817 if not property_name: - 818 self.unsupported(f"Unsupported property {expression.key}") - 819 - 820 return f"{property_name}={self.sql(expression, 'this')}" - 821 - 822 def likeproperty_sql(self, expression: exp.LikeProperty) -> str: - 823 options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions) - 824 options = f" {options}" if options else "" - 825 return f"LIKE {self.sql(expression, 'this')}{options}" + 816 return properties_locs + 817 + 818 def property_sql(self, expression: exp.Property) -> str: + 819 property_cls = expression.__class__ + 820 if property_cls == exp.Property: + 821 return f"{expression.name}={self.sql(expression, 'value')}" + 822 + 823 property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls) + 824 if not property_name: + 825 self.unsupported(f"Unsupported property {expression.key}") 826 - 827 def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str: - 828 no = "NO " if expression.args.get("no") else "" - 829 protection = " PROTECTION" if expression.args.get("protection") else "" - 830 return f"{no}FALLBACK{protection}" - 831 - 832 def journalproperty_sql(self, expression: exp.JournalProperty) -> str: - 833 no = "NO " if expression.args.get("no") else "" - 834 dual = "DUAL " if expression.args.get("dual") else "" - 835 before = "BEFORE " if expression.args.get("before") else "" - 836 return f"{no}{dual}{before}JOURNAL" - 837 - 838 def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str: - 839 freespace = self.sql(expression, "this") - 840 percent = " PERCENT" if expression.args.get("percent") else "" - 841 return f"FREESPACE={freespace}{percent}" - 842 - 843 def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str: - 844 no = "NO " if expression.args.get("no") else "" - 845 dual = "DUAL " if expression.args.get("dual") else "" - 846 local = "" - 847 if expression.args.get("local") is not None: - 848 local = "LOCAL " if expression.args.get("local") else "NOT LOCAL " - 849 return f"{no}{dual}{local}AFTER JOURNAL" - 850 - 851 def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str: - 852 if expression.args.get("default"): - 853 property = "DEFAULT" - 854 elif expression.args.get("on"): - 855 property = "ON" - 856 else: - 857 property = "OFF" - 858 return f"CHECKSUM={property}" - 859 - 860 def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str: - 861 if expression.args.get("no"): - 862 return "NO MERGEBLOCKRATIO" - 863 if expression.args.get("default"): - 864 return "DEFAULT MERGEBLOCKRATIO" - 865 - 866 percent = " PERCENT" if expression.args.get("percent") else "" - 867 return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}" - 868 - 869 def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str: - 870 default = expression.args.get("default") - 871 min = expression.args.get("min") - 872 if default is not None or min is not None: - 873 if default: - 874 property = "DEFAULT" - 875 elif min: - 876 property = "MINIMUM" - 877 else: - 878 property = "MAXIMUM" - 879 return f"{property} DATABLOCKSIZE" - 880 else: - 881 units = expression.args.get("units") - 882 units = f" {units}" if units else "" - 883 return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}" - 884 - 885 def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str: - 886 autotemp = expression.args.get("autotemp") - 887 always = expression.args.get("always") - 888 default = expression.args.get("default") - 889 manual = expression.args.get("manual") - 890 never = expression.args.get("never") + 827 return f"{property_name}={self.sql(expression, 'this')}" + 828 + 829 def likeproperty_sql(self, expression: exp.LikeProperty) -> str: + 830 options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions) + 831 options = f" {options}" if options else "" + 832 return f"LIKE {self.sql(expression, 'this')}{options}" + 833 + 834 def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str: + 835 no = "NO " if expression.args.get("no") else "" + 836 protection = " PROTECTION" if expression.args.get("protection") else "" + 837 return f"{no}FALLBACK{protection}" + 838 + 839 def journalproperty_sql(self, expression: exp.JournalProperty) -> str: + 840 no = "NO " if expression.args.get("no") else "" + 841 dual = "DUAL " if expression.args.get("dual") else "" + 842 before = "BEFORE " if expression.args.get("before") else "" + 843 return f"{no}{dual}{before}JOURNAL" + 844 + 845 def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str: + 846 freespace = self.sql(expression, "this") + 847 percent = " PERCENT" if expression.args.get("percent") else "" + 848 return f"FREESPACE={freespace}{percent}" + 849 + 850 def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str: + 851 no = "NO " if expression.args.get("no") else "" + 852 dual = "DUAL " if expression.args.get("dual") else "" + 853 local = "" + 854 if expression.args.get("local") is not None: + 855 local = "LOCAL " if expression.args.get("local") else "NOT LOCAL " + 856 return f"{no}{dual}{local}AFTER JOURNAL" + 857 + 858 def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str: + 859 if expression.args.get("default"): + 860 property = "DEFAULT" + 861 elif expression.args.get("on"): + 862 property = "ON" + 863 else: + 864 property = "OFF" + 865 return f"CHECKSUM={property}" + 866 + 867 def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str: + 868 if expression.args.get("no"): + 869 return "NO MERGEBLOCKRATIO" + 870 if expression.args.get("default"): + 871 return "DEFAULT MERGEBLOCKRATIO" + 872 + 873 percent = " PERCENT" if expression.args.get("percent") else "" + 874 return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}" + 875 + 876 def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str: + 877 default = expression.args.get("default") + 878 min = expression.args.get("min") + 879 if default is not None or min is not None: + 880 if default: + 881 property = "DEFAULT" + 882 elif min: + 883 property = "MINIMUM" + 884 else: + 885 property = "MAXIMUM" + 886 return f"{property} DATABLOCKSIZE" + 887 else: + 888 units = expression.args.get("units") + 889 units = f" {units}" if units else "" + 890 return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}" 891 - 892 if autotemp is not None: - 893 property = f"AUTOTEMP({self.expressions(autotemp)})" - 894 elif always: - 895 property = "ALWAYS" - 896 elif default: - 897 property = "DEFAULT" - 898 elif manual: - 899 property = "MANUAL" - 900 elif never: - 901 property = "NEVER" - 902 return f"BLOCKCOMPRESSION={property}" - 903 - 904 def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str: - 905 no = expression.args.get("no") - 906 no = " NO" if no else "" - 907 concurrent = expression.args.get("concurrent") - 908 concurrent = " CONCURRENT" if concurrent else "" - 909 - 910 for_ = "" - 911 if expression.args.get("for_all"): - 912 for_ = " FOR ALL" - 913 elif expression.args.get("for_insert"): - 914 for_ = " FOR INSERT" - 915 elif expression.args.get("for_none"): - 916 for_ = " FOR NONE" - 917 return f"WITH{no}{concurrent} ISOLATED LOADING{for_}" - 918 - 919 def lockingproperty_sql(self, expression: exp.LockingProperty) -> str: - 920 kind = expression.args.get("kind") - 921 this: str = f" {this}" if expression.this else "" - 922 for_or_in = expression.args.get("for_or_in") - 923 lock_type = expression.args.get("lock_type") - 924 override = " OVERRIDE" if expression.args.get("override") else "" - 925 return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}" - 926 - 927 def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str: - 928 data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA" - 929 statistics = expression.args.get("statistics") - 930 statistics_sql = "" - 931 if statistics is not None: - 932 statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS" - 933 return f"{data_sql}{statistics_sql}" - 934 - 935 def insert_sql(self, expression: exp.Insert) -> str: - 936 overwrite = expression.args.get("overwrite") - 937 - 938 if isinstance(expression.this, exp.Directory): - 939 this = "OVERWRITE " if overwrite else "INTO " - 940 else: - 941 this = "OVERWRITE TABLE " if overwrite else "INTO " - 942 - 943 alternative = expression.args.get("alternative") - 944 alternative = f" OR {alternative} " if alternative else " " - 945 this = f"{this}{self.sql(expression, 'this')}" - 946 - 947 exists = " IF EXISTS " if expression.args.get("exists") else " " - 948 partition_sql = ( - 949 self.sql(expression, "partition") if expression.args.get("partition") else "" - 950 ) - 951 expression_sql = self.sql(expression, "expression") - 952 sep = self.sep() if partition_sql else "" - 953 sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}" - 954 return self.prepend_ctes(expression, sql) - 955 - 956 def intersect_sql(self, expression: exp.Intersect) -> str: - 957 return self.prepend_ctes( - 958 expression, - 959 self.set_operation(expression, self.intersect_op(expression)), - 960 ) - 961 - 962 def intersect_op(self, expression: exp.Intersect) -> str: - 963 return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}" - 964 - 965 def introducer_sql(self, expression: exp.Introducer) -> str: - 966 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" - 967 - 968 def pseudotype_sql(self, expression: exp.PseudoType) -> str: - 969 return expression.name.upper() - 970 - 971 def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str: - 972 fields = expression.args.get("fields") - 973 fields = f" FIELDS TERMINATED BY {fields}" if fields else "" - 974 escaped = expression.args.get("escaped") - 975 escaped = f" ESCAPED BY {escaped}" if escaped else "" - 976 items = expression.args.get("collection_items") - 977 items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else "" - 978 keys = expression.args.get("map_keys") - 979 keys = f" MAP KEYS TERMINATED BY {keys}" if keys else "" - 980 lines = expression.args.get("lines") - 981 lines = f" LINES TERMINATED BY {lines}" if lines else "" - 982 null = expression.args.get("null") - 983 null = f" NULL DEFINED AS {null}" if null else "" - 984 return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}" - 985 - 986 def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str: - 987 table = ".".join( - 988 part - 989 for part in [ - 990 self.sql(expression, "catalog"), - 991 self.sql(expression, "db"), - 992 self.sql(expression, "this"), - 993 ] - 994 if part - 995 ) + 892 def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str: + 893 autotemp = expression.args.get("autotemp") + 894 always = expression.args.get("always") + 895 default = expression.args.get("default") + 896 manual = expression.args.get("manual") + 897 never = expression.args.get("never") + 898 + 899 if autotemp is not None: + 900 property = f"AUTOTEMP({self.expressions(autotemp)})" + 901 elif always: + 902 property = "ALWAYS" + 903 elif default: + 904 property = "DEFAULT" + 905 elif manual: + 906 property = "MANUAL" + 907 elif never: + 908 property = "NEVER" + 909 return f"BLOCKCOMPRESSION={property}" + 910 + 911 def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str: + 912 no = expression.args.get("no") + 913 no = " NO" if no else "" + 914 concurrent = expression.args.get("concurrent") + 915 concurrent = " CONCURRENT" if concurrent else "" + 916 + 917 for_ = "" + 918 if expression.args.get("for_all"): + 919 for_ = " FOR ALL" + 920 elif expression.args.get("for_insert"): + 921 for_ = " FOR INSERT" + 922 elif expression.args.get("for_none"): + 923 for_ = " FOR NONE" + 924 return f"WITH{no}{concurrent} ISOLATED LOADING{for_}" + 925 + 926 def lockingproperty_sql(self, expression: exp.LockingProperty) -> str: + 927 kind = expression.args.get("kind") + 928 this: str = f" {this}" if expression.this else "" + 929 for_or_in = expression.args.get("for_or_in") + 930 lock_type = expression.args.get("lock_type") + 931 override = " OVERRIDE" if expression.args.get("override") else "" + 932 return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}" + 933 + 934 def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str: + 935 data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA" + 936 statistics = expression.args.get("statistics") + 937 statistics_sql = "" + 938 if statistics is not None: + 939 statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS" + 940 return f"{data_sql}{statistics_sql}" + 941 + 942 def insert_sql(self, expression: exp.Insert) -> str: + 943 overwrite = expression.args.get("overwrite") + 944 + 945 if isinstance(expression.this, exp.Directory): + 946 this = "OVERWRITE " if overwrite else "INTO " + 947 else: + 948 this = "OVERWRITE TABLE " if overwrite else "INTO " + 949 + 950 alternative = expression.args.get("alternative") + 951 alternative = f" OR {alternative} " if alternative else " " + 952 this = f"{this}{self.sql(expression, 'this')}" + 953 + 954 exists = " IF EXISTS " if expression.args.get("exists") else " " + 955 partition_sql = ( + 956 self.sql(expression, "partition") if expression.args.get("partition") else "" + 957 ) + 958 expression_sql = self.sql(expression, "expression") + 959 returning = self.sql(expression, "returning") + 960 sep = self.sep() if partition_sql else "" + 961 sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}" + 962 return self.prepend_ctes(expression, sql) + 963 + 964 def intersect_sql(self, expression: exp.Intersect) -> str: + 965 return self.prepend_ctes( + 966 expression, + 967 self.set_operation(expression, self.intersect_op(expression)), + 968 ) + 969 + 970 def intersect_op(self, expression: exp.Intersect) -> str: + 971 return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}" + 972 + 973 def introducer_sql(self, expression: exp.Introducer) -> str: + 974 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" + 975 + 976 def pseudotype_sql(self, expression: exp.PseudoType) -> str: + 977 return expression.name.upper() + 978 + 979 def returning_sql(self, expression: exp.Returning) -> str: + 980 return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}" + 981 + 982 def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str: + 983 fields = expression.args.get("fields") + 984 fields = f" FIELDS TERMINATED BY {fields}" if fields else "" + 985 escaped = expression.args.get("escaped") + 986 escaped = f" ESCAPED BY {escaped}" if escaped else "" + 987 items = expression.args.get("collection_items") + 988 items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else "" + 989 keys = expression.args.get("map_keys") + 990 keys = f" MAP KEYS TERMINATED BY {keys}" if keys else "" + 991 lines = expression.args.get("lines") + 992 lines = f" LINES TERMINATED BY {lines}" if lines else "" + 993 null = expression.args.get("null") + 994 null = f" NULL DEFINED AS {null}" if null else "" + 995 return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}" 996 - 997 alias = self.sql(expression, "alias") - 998 alias = f"{sep}{alias}" if alias else "" - 999 hints = self.expressions(expression, key="hints", sep=", ", flat=True) -1000 hints = f" WITH ({hints})" if hints else "" -1001 laterals = self.expressions(expression, key="laterals", sep="") -1002 joins = self.expressions(expression, key="joins", sep="") -1003 pivots = self.expressions(expression, key="pivots", sep="") -1004 system_time = expression.args.get("system_time") -1005 system_time = f" {self.sql(expression, 'system_time')}" if system_time else "" -1006 -1007 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" -1008 -1009 def tablesample_sql(self, expression: exp.TableSample) -> str: -1010 if self.alias_post_tablesample and expression.this.alias: -1011 this = self.sql(expression.this, "this") -1012 alias = f" AS {self.sql(expression.this, 'alias')}" -1013 else: -1014 this = self.sql(expression, "this") -1015 alias = "" -1016 method = self.sql(expression, "method") -1017 method = f" {method.upper()} " if method else "" -1018 numerator = self.sql(expression, "bucket_numerator") -1019 denominator = self.sql(expression, "bucket_denominator") -1020 field = self.sql(expression, "bucket_field") -1021 field = f" ON {field}" if field else "" -1022 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" -1023 percent = self.sql(expression, "percent") -1024 percent = f"{percent} PERCENT" if percent else "" -1025 rows = self.sql(expression, "rows") -1026 rows = f"{rows} ROWS" if rows else "" -1027 size = self.sql(expression, "size") -1028 seed = self.sql(expression, "seed") -1029 seed = f" SEED ({seed})" if seed else "" -1030 return f"{this} TABLESAMPLE{method}({bucket}{percent}{rows}{size}){seed}{alias}" -1031 -1032 def pivot_sql(self, expression: exp.Pivot) -> str: -1033 this = self.sql(expression, "this") -1034 alias = self.sql(expression, "alias") -1035 alias = f" AS {alias}" if alias else "" -1036 unpivot = expression.args.get("unpivot") -1037 direction = "UNPIVOT" if unpivot else "PIVOT" -1038 expressions = self.expressions(expression, key="expressions") -1039 field = self.sql(expression, "field") -1040 return f"{this} {direction}({expressions} FOR {field}){alias}" -1041 -1042 def tuple_sql(self, expression: exp.Tuple) -> str: -1043 return f"({self.expressions(expression, flat=True)})" -1044 -1045 def update_sql(self, expression: exp.Update) -> str: -1046 this = self.sql(expression, "this") -1047 set_sql = self.expressions(expression, flat=True) -1048 from_sql = self.sql(expression, "from") -1049 where_sql = self.sql(expression, "where") -1050 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}" -1051 return self.prepend_ctes(expression, sql) -1052 -1053 def values_sql(self, expression: exp.Values) -> str: -1054 args = self.expressions(expression) -1055 alias = self.sql(expression, "alias") -1056 values = f"VALUES{self.seg('')}{args}" -1057 values = ( -1058 f"({values})" -1059 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) -1060 else values -1061 ) -1062 return f"{values} AS {alias}" if alias else values -1063 -1064 def var_sql(self, expression: exp.Var) -> str: -1065 return self.sql(expression, "this") -1066 -1067 def into_sql(self, expression: exp.Into) -> str: -1068 temporary = " TEMPORARY" if expression.args.get("temporary") else "" -1069 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" -1070 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" -1071 -1072 def from_sql(self, expression: exp.From) -> str: -1073 expressions = self.expressions(expression, flat=True) -1074 return f"{self.seg('FROM')} {expressions}" -1075 -1076 def group_sql(self, expression: exp.Group) -> str: -1077 group_by = self.op_expressions("GROUP BY", expression) -1078 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) -1079 grouping_sets = ( -1080 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" -1081 ) -1082 -1083 cube = expression.args.get("cube", []) -1084 if seq_get(cube, 0) is True: -1085 return f"{group_by}{self.seg('WITH CUBE')}" -1086 else: -1087 cube_sql = self.expressions(expression, key="cube", indent=False) -1088 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" -1089 -1090 rollup = expression.args.get("rollup", []) -1091 if seq_get(rollup, 0) is True: -1092 return f"{group_by}{self.seg('WITH ROLLUP')}" -1093 else: -1094 rollup_sql = self.expressions(expression, key="rollup", indent=False) -1095 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" -1096 -1097 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") -1098 -1099 if expression.args.get("expressions") and groupings: -1100 group_by = f"{group_by}," -1101 -1102 return f"{group_by}{groupings}" -1103 -1104 def having_sql(self, expression: exp.Having) -> str: -1105 this = self.indent(self.sql(expression, "this")) -1106 return f"{self.seg('HAVING')}{self.sep()}{this}" -1107 -1108 def join_sql(self, expression: exp.Join) -> str: -1109 op_sql = self.seg( -1110 " ".join( -1111 op -1112 for op in ( -1113 "NATURAL" if expression.args.get("natural") else None, -1114 expression.side, -1115 expression.kind, -1116 "JOIN", -1117 ) -1118 if op -1119 ) -1120 ) -1121 on_sql = self.sql(expression, "on") -1122 using = expression.args.get("using") -1123 -1124 if not on_sql and using: -1125 on_sql = csv(*(self.sql(column) for column in using)) -1126 -1127 if on_sql: -1128 on_sql = self.indent(on_sql, skip_first=True) -1129 space = self.seg(" " * self.pad) if self.pretty else " " -1130 if using: -1131 on_sql = f"{space}USING ({on_sql})" -1132 else: -1133 on_sql = f"{space}ON {on_sql}" -1134 -1135 expression_sql = self.sql(expression, "expression") -1136 this_sql = self.sql(expression, "this") -1137 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" -1138 -1139 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: -1140 args = self.expressions(expression, flat=True) -1141 args = f"({args})" if len(args.split(",")) > 1 else args -1142 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" -1143 -1144 def lateral_sql(self, expression: exp.Lateral) -> str: -1145 this = self.sql(expression, "this") -1146 -1147 if isinstance(expression.this, exp.Subquery): -1148 return f"LATERAL {this}" -1149 -1150 if expression.args.get("view"): -1151 alias = expression.args["alias"] -1152 columns = self.expressions(alias, key="columns", flat=True) -1153 table = f" {alias.name}" if alias.name else "" -1154 columns = f" AS {columns}" if columns else "" -1155 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") -1156 return f"{op_sql}{self.sep()}{this}{table}{columns}" -1157 -1158 alias = self.sql(expression, "alias") -1159 alias = f" AS {alias}" if alias else "" -1160 return f"LATERAL {this}{alias}" -1161 -1162 def limit_sql(self, expression: exp.Limit) -> str: -1163 this = self.sql(expression, "this") -1164 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" -1165 -1166 def offset_sql(self, expression: exp.Offset) -> str: -1167 this = self.sql(expression, "this") -1168 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" -1169 -1170 def lock_sql(self, expression: exp.Lock) -> str: -1171 if self.LOCKING_READS_SUPPORTED: -1172 lock_type = "UPDATE" if expression.args["update"] else "SHARE" -1173 return self.seg(f"FOR {lock_type}") + 997 def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str: + 998 table = ".".join( + 999 part +1000 for part in [ +1001 self.sql(expression, "catalog"), +1002 self.sql(expression, "db"), +1003 self.sql(expression, "this"), +1004 ] +1005 if part +1006 ) +1007 +1008 alias = self.sql(expression, "alias") +1009 alias = f"{sep}{alias}" if alias else "" +1010 hints = self.expressions(expression, key="hints", sep=", ", flat=True) +1011 hints = f" WITH ({hints})" if hints else "" +1012 laterals = self.expressions(expression, key="laterals", sep="") +1013 joins = self.expressions(expression, key="joins", sep="") +1014 pivots = self.expressions(expression, key="pivots", sep="") +1015 system_time = expression.args.get("system_time") +1016 system_time = f" {self.sql(expression, 'system_time')}" if system_time else "" +1017 +1018 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" +1019 +1020 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: +1021 if self.alias_post_tablesample and expression.this.alias: +1022 this = self.sql(expression.this, "this") +1023 alias = f" AS {self.sql(expression.this, 'alias')}" +1024 else: +1025 this = self.sql(expression, "this") +1026 alias = "" +1027 method = self.sql(expression, "method") +1028 method = f"{method.upper()} " if method else "" +1029 numerator = self.sql(expression, "bucket_numerator") +1030 denominator = self.sql(expression, "bucket_denominator") +1031 field = self.sql(expression, "bucket_field") +1032 field = f" ON {field}" if field else "" +1033 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" +1034 percent = self.sql(expression, "percent") +1035 percent = f"{percent} PERCENT" if percent else "" +1036 rows = self.sql(expression, "rows") +1037 rows = f"{rows} ROWS" if rows else "" +1038 size = self.sql(expression, "size") +1039 seed = self.sql(expression, "seed") +1040 seed = f" {seed_prefix} ({seed})" if seed else "" +1041 kind = expression.args.get("kind", "TABLESAMPLE") +1042 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" +1043 +1044 def pivot_sql(self, expression: exp.Pivot) -> str: +1045 this = self.sql(expression, "this") +1046 alias = self.sql(expression, "alias") +1047 alias = f" AS {alias}" if alias else "" +1048 unpivot = expression.args.get("unpivot") +1049 direction = "UNPIVOT" if unpivot else "PIVOT" +1050 expressions = self.expressions(expression, key="expressions") +1051 field = self.sql(expression, "field") +1052 return f"{this} {direction}({expressions} FOR {field}){alias}" +1053 +1054 def tuple_sql(self, expression: exp.Tuple) -> str: +1055 return f"({self.expressions(expression, flat=True)})" +1056 +1057 def update_sql(self, expression: exp.Update) -> str: +1058 this = self.sql(expression, "this") +1059 set_sql = self.expressions(expression, flat=True) +1060 from_sql = self.sql(expression, "from") +1061 where_sql = self.sql(expression, "where") +1062 returning = self.sql(expression, "returning") +1063 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" +1064 return self.prepend_ctes(expression, sql) +1065 +1066 def values_sql(self, expression: exp.Values) -> str: +1067 args = self.expressions(expression) +1068 alias = self.sql(expression, "alias") +1069 values = f"VALUES{self.seg('')}{args}" +1070 values = ( +1071 f"({values})" +1072 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) +1073 else values +1074 ) +1075 return f"{values} AS {alias}" if alias else values +1076 +1077 def var_sql(self, expression: exp.Var) -> str: +1078 return self.sql(expression, "this") +1079 +1080 def into_sql(self, expression: exp.Into) -> str: +1081 temporary = " TEMPORARY" if expression.args.get("temporary") else "" +1082 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" +1083 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" +1084 +1085 def from_sql(self, expression: exp.From) -> str: +1086 expressions = self.expressions(expression, flat=True) +1087 return f"{self.seg('FROM')} {expressions}" +1088 +1089 def group_sql(self, expression: exp.Group) -> str: +1090 group_by = self.op_expressions("GROUP BY", expression) +1091 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) +1092 grouping_sets = ( +1093 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" +1094 ) +1095 +1096 cube = expression.args.get("cube", []) +1097 if seq_get(cube, 0) is True: +1098 return f"{group_by}{self.seg('WITH CUBE')}" +1099 else: +1100 cube_sql = self.expressions(expression, key="cube", indent=False) +1101 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" +1102 +1103 rollup = expression.args.get("rollup", []) +1104 if seq_get(rollup, 0) is True: +1105 return f"{group_by}{self.seg('WITH ROLLUP')}" +1106 else: +1107 rollup_sql = self.expressions(expression, key="rollup", indent=False) +1108 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" +1109 +1110 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") +1111 +1112 if expression.args.get("expressions") and groupings: +1113 group_by = f"{group_by}," +1114 +1115 return f"{group_by}{groupings}" +1116 +1117 def having_sql(self, expression: exp.Having) -> str: +1118 this = self.indent(self.sql(expression, "this")) +1119 return f"{self.seg('HAVING')}{self.sep()}{this}" +1120 +1121 def join_sql(self, expression: exp.Join) -> str: +1122 op_sql = self.seg( +1123 " ".join( +1124 op +1125 for op in ( +1126 "NATURAL" if expression.args.get("natural") else None, +1127 expression.side, +1128 expression.kind, +1129 "JOIN", +1130 ) +1131 if op +1132 ) +1133 ) +1134 on_sql = self.sql(expression, "on") +1135 using = expression.args.get("using") +1136 +1137 if not on_sql and using: +1138 on_sql = csv(*(self.sql(column) for column in using)) +1139 +1140 if on_sql: +1141 on_sql = self.indent(on_sql, skip_first=True) +1142 space = self.seg(" " * self.pad) if self.pretty else " " +1143 if using: +1144 on_sql = f"{space}USING ({on_sql})" +1145 else: +1146 on_sql = f"{space}ON {on_sql}" +1147 +1148 expression_sql = self.sql(expression, "expression") +1149 this_sql = self.sql(expression, "this") +1150 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" +1151 +1152 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: +1153 args = self.expressions(expression, flat=True) +1154 args = f"({args})" if len(args.split(",")) > 1 else args +1155 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" +1156 +1157 def lateral_sql(self, expression: exp.Lateral) -> str: +1158 this = self.sql(expression, "this") +1159 +1160 if isinstance(expression.this, exp.Subquery): +1161 return f"LATERAL {this}" +1162 +1163 if expression.args.get("view"): +1164 alias = expression.args["alias"] +1165 columns = self.expressions(alias, key="columns", flat=True) +1166 table = f" {alias.name}" if alias.name else "" +1167 columns = f" AS {columns}" if columns else "" +1168 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") +1169 return f"{op_sql}{self.sep()}{this}{table}{columns}" +1170 +1171 alias = self.sql(expression, "alias") +1172 alias = f" AS {alias}" if alias else "" +1173 return f"LATERAL {this}{alias}" 1174 -1175 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") -1176 return "" -1177 -1178 def literal_sql(self, expression: exp.Literal) -> str: -1179 text = expression.this or "" -1180 if expression.is_string: -1181 text = text.replace(self.quote_end, self._escaped_quote_end) -1182 if self.pretty: -1183 text = text.replace("\n", self.SENTINEL_LINE_BREAK) -1184 text = f"{self.quote_start}{text}{self.quote_end}" -1185 return text -1186 -1187 def loaddata_sql(self, expression: exp.LoadData) -> str: -1188 local = " LOCAL" if expression.args.get("local") else "" -1189 inpath = f" INPATH {self.sql(expression, 'inpath')}" -1190 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" -1191 this = f" INTO TABLE {self.sql(expression, 'this')}" -1192 partition = self.sql(expression, "partition") -1193 partition = f" {partition}" if partition else "" -1194 input_format = self.sql(expression, "input_format") -1195 input_format = f" INPUTFORMAT {input_format}" if input_format else "" -1196 serde = self.sql(expression, "serde") -1197 serde = f" SERDE {serde}" if serde else "" -1198 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" +1175 def limit_sql(self, expression: exp.Limit) -> str: +1176 this = self.sql(expression, "this") +1177 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" +1178 +1179 def offset_sql(self, expression: exp.Offset) -> str: +1180 this = self.sql(expression, "this") +1181 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" +1182 +1183 def lock_sql(self, expression: exp.Lock) -> str: +1184 if self.LOCKING_READS_SUPPORTED: +1185 lock_type = "UPDATE" if expression.args["update"] else "SHARE" +1186 return self.seg(f"FOR {lock_type}") +1187 +1188 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") +1189 return "" +1190 +1191 def literal_sql(self, expression: exp.Literal) -> str: +1192 text = expression.this or "" +1193 if expression.is_string: +1194 text = text.replace(self.quote_end, self._escaped_quote_end) +1195 if self.pretty: +1196 text = text.replace("\n", self.SENTINEL_LINE_BREAK) +1197 text = f"{self.quote_start}{text}{self.quote_end}" +1198 return text 1199 -1200 def null_sql(self, *_) -> str: -1201 return "NULL" -1202 -1203 def boolean_sql(self, expression: exp.Boolean) -> str: -1204 return "TRUE" if expression.this else "FALSE" -1205 -1206 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: -1207 this = self.sql(expression, "this") -1208 this = f"{this} " if this else this -1209 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore -1210 -1211 def cluster_sql(self, expression: exp.Cluster) -> str: -1212 return self.op_expressions("CLUSTER BY", expression) -1213 -1214 def distribute_sql(self, expression: exp.Distribute) -> str: -1215 return self.op_expressions("DISTRIBUTE BY", expression) -1216 -1217 def sort_sql(self, expression: exp.Sort) -> str: -1218 return self.op_expressions("SORT BY", expression) -1219 -1220 def ordered_sql(self, expression: exp.Ordered) -> str: -1221 desc = expression.args.get("desc") -1222 asc = not desc +1200 def loaddata_sql(self, expression: exp.LoadData) -> str: +1201 local = " LOCAL" if expression.args.get("local") else "" +1202 inpath = f" INPATH {self.sql(expression, 'inpath')}" +1203 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" +1204 this = f" INTO TABLE {self.sql(expression, 'this')}" +1205 partition = self.sql(expression, "partition") +1206 partition = f" {partition}" if partition else "" +1207 input_format = self.sql(expression, "input_format") +1208 input_format = f" INPUTFORMAT {input_format}" if input_format else "" +1209 serde = self.sql(expression, "serde") +1210 serde = f" SERDE {serde}" if serde else "" +1211 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" +1212 +1213 def null_sql(self, *_) -> str: +1214 return "NULL" +1215 +1216 def boolean_sql(self, expression: exp.Boolean) -> str: +1217 return "TRUE" if expression.this else "FALSE" +1218 +1219 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: +1220 this = self.sql(expression, "this") +1221 this = f"{this} " if this else this +1222 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore 1223 -1224 nulls_first = expression.args.get("nulls_first") -1225 nulls_last = not nulls_first -1226 nulls_are_large = self.null_ordering == "nulls_are_large" -1227 nulls_are_small = self.null_ordering == "nulls_are_small" -1228 nulls_are_last = self.null_ordering == "nulls_are_last" +1224 def cluster_sql(self, expression: exp.Cluster) -> str: +1225 return self.op_expressions("CLUSTER BY", expression) +1226 +1227 def distribute_sql(self, expression: exp.Distribute) -> str: +1228 return self.op_expressions("DISTRIBUTE BY", expression) 1229 -1230 sort_order = " DESC" if desc else "" -1231 nulls_sort_change = "" -1232 if nulls_first and ( -1233 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last -1234 ): -1235 nulls_sort_change = " NULLS FIRST" -1236 elif ( -1237 nulls_last -1238 and ((asc and nulls_are_small) or (desc and nulls_are_large)) -1239 and not nulls_are_last -1240 ): -1241 nulls_sort_change = " NULLS LAST" +1230 def sort_sql(self, expression: exp.Sort) -> str: +1231 return self.op_expressions("SORT BY", expression) +1232 +1233 def ordered_sql(self, expression: exp.Ordered) -> str: +1234 desc = expression.args.get("desc") +1235 asc = not desc +1236 +1237 nulls_first = expression.args.get("nulls_first") +1238 nulls_last = not nulls_first +1239 nulls_are_large = self.null_ordering == "nulls_are_large" +1240 nulls_are_small = self.null_ordering == "nulls_are_small" +1241 nulls_are_last = self.null_ordering == "nulls_are_last" 1242 -1243 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: -1244 self.unsupported( -1245 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" -1246 ) -1247 nulls_sort_change = "" -1248 -1249 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" -1250 -1251 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: -1252 partition = self.partition_by_sql(expression) -1253 order = self.sql(expression, "order") -1254 measures = self.sql(expression, "measures") -1255 measures = self.seg(f"MEASURES {measures}") if measures else "" -1256 rows = self.sql(expression, "rows") -1257 rows = self.seg(rows) if rows else "" -1258 after = self.sql(expression, "after") -1259 after = self.seg(after) if after else "" -1260 pattern = self.sql(expression, "pattern") -1261 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" -1262 define = self.sql(expression, "define") -1263 define = self.seg(f"DEFINE {define}") if define else "" -1264 body = "".join( -1265 ( -1266 partition, -1267 order, -1268 measures, -1269 rows, -1270 after, -1271 pattern, -1272 define, -1273 ) -1274 ) -1275 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}" -1276 -1277 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: -1278 return csv( -1279 *sqls, -1280 *[self.sql(sql) for sql in expression.args.get("joins") or []], -1281 self.sql(expression, "match"), -1282 *[self.sql(sql) for sql in expression.args.get("laterals") or []], -1283 self.sql(expression, "where"), -1284 self.sql(expression, "group"), -1285 self.sql(expression, "having"), -1286 self.sql(expression, "qualify"), -1287 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) -1288 if expression.args.get("windows") -1289 else "", -1290 self.sql(expression, "distribute"), -1291 self.sql(expression, "sort"), -1292 self.sql(expression, "cluster"), -1293 self.sql(expression, "order"), -1294 self.sql(expression, "limit"), -1295 self.sql(expression, "offset"), -1296 self.sql(expression, "lock"), -1297 sep="", -1298 ) -1299 -1300 def select_sql(self, expression: exp.Select) -> str: -1301 hint = self.sql(expression, "hint") -1302 distinct = self.sql(expression, "distinct") -1303 distinct = f" {distinct}" if distinct else "" -1304 expressions = self.expressions(expression) -1305 expressions = f"{self.sep()}{expressions}" if expressions else expressions -1306 sql = self.query_modifiers( -1307 expression, -1308 f"SELECT{hint}{distinct}{expressions}", -1309 self.sql(expression, "into", comment=False), -1310 self.sql(expression, "from", comment=False), -1311 ) -1312 return self.prepend_ctes(expression, sql) +1243 sort_order = " DESC" if desc else "" +1244 nulls_sort_change = "" +1245 if nulls_first and ( +1246 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last +1247 ): +1248 nulls_sort_change = " NULLS FIRST" +1249 elif ( +1250 nulls_last +1251 and ((asc and nulls_are_small) or (desc and nulls_are_large)) +1252 and not nulls_are_last +1253 ): +1254 nulls_sort_change = " NULLS LAST" +1255 +1256 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: +1257 self.unsupported( +1258 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" +1259 ) +1260 nulls_sort_change = "" +1261 +1262 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" +1263 +1264 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: +1265 partition = self.partition_by_sql(expression) +1266 order = self.sql(expression, "order") +1267 measures = self.sql(expression, "measures") +1268 measures = self.seg(f"MEASURES {measures}") if measures else "" +1269 rows = self.sql(expression, "rows") +1270 rows = self.seg(rows) if rows else "" +1271 after = self.sql(expression, "after") +1272 after = self.seg(after) if after else "" +1273 pattern = self.sql(expression, "pattern") +1274 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" +1275 define = self.sql(expression, "define") +1276 define = self.seg(f"DEFINE {define}") if define else "" +1277 body = "".join( +1278 ( +1279 partition, +1280 order, +1281 measures, +1282 rows, +1283 after, +1284 pattern, +1285 define, +1286 ) +1287 ) +1288 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}" +1289 +1290 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: +1291 return csv( +1292 *sqls, +1293 *[self.sql(sql) for sql in expression.args.get("joins") or []], +1294 self.sql(expression, "match"), +1295 *[self.sql(sql) for sql in expression.args.get("laterals") or []], +1296 self.sql(expression, "where"), +1297 self.sql(expression, "group"), +1298 self.sql(expression, "having"), +1299 self.sql(expression, "qualify"), +1300 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) +1301 if expression.args.get("windows") +1302 else "", +1303 self.sql(expression, "distribute"), +1304 self.sql(expression, "sort"), +1305 self.sql(expression, "cluster"), +1306 self.sql(expression, "order"), +1307 self.sql(expression, "limit"), +1308 self.sql(expression, "offset"), +1309 self.sql(expression, "lock"), +1310 self.sql(expression, "sample"), +1311 sep="", +1312 ) 1313 -1314 def schema_sql(self, expression: exp.Schema) -> str: -1315 this = self.sql(expression, "this") -1316 this = f"{this} " if this else "" -1317 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" -1318 return f"{this}{sql}" -1319 -1320 def star_sql(self, expression: exp.Star) -> str: -1321 except_ = self.expressions(expression, key="except", flat=True) -1322 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" -1323 replace = self.expressions(expression, key="replace", flat=True) -1324 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" -1325 return f"*{except_}{replace}" -1326 -1327 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: -1328 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" -1329 -1330 def parameter_sql(self, expression: exp.Parameter) -> str: -1331 this = self.sql(expression, "this") -1332 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" -1333 return f"{self.PARAMETER_TOKEN}{this}" -1334 -1335 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: -1336 this = self.sql(expression, "this") -1337 kind = expression.text("kind") -1338 if kind: -1339 kind = f"{kind}." -1340 return f"@@{kind}{this}" -1341 -1342 def placeholder_sql(self, expression: exp.Placeholder) -> str: -1343 return f":{expression.name}" if expression.name else "?" -1344 -1345 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: -1346 alias = self.sql(expression, "alias") -1347 alias = f"{sep}{alias}" if alias else "" +1314 def select_sql(self, expression: exp.Select) -> str: +1315 hint = self.sql(expression, "hint") +1316 distinct = self.sql(expression, "distinct") +1317 distinct = f" {distinct}" if distinct else "" +1318 expressions = self.expressions(expression) +1319 expressions = f"{self.sep()}{expressions}" if expressions else expressions +1320 sql = self.query_modifiers( +1321 expression, +1322 f"SELECT{hint}{distinct}{expressions}", +1323 self.sql(expression, "into", comment=False), +1324 self.sql(expression, "from", comment=False), +1325 ) +1326 return self.prepend_ctes(expression, sql) +1327 +1328 def schema_sql(self, expression: exp.Schema) -> str: +1329 this = self.sql(expression, "this") +1330 this = f"{this} " if this else "" +1331 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" +1332 return f"{this}{sql}" +1333 +1334 def star_sql(self, expression: exp.Star) -> str: +1335 except_ = self.expressions(expression, key="except", flat=True) +1336 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" +1337 replace = self.expressions(expression, key="replace", flat=True) +1338 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" +1339 return f"*{except_}{replace}" +1340 +1341 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: +1342 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" +1343 +1344 def parameter_sql(self, expression: exp.Parameter) -> str: +1345 this = self.sql(expression, "this") +1346 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" +1347 return f"{self.PARAMETER_TOKEN}{this}" 1348 -1349 sql = self.query_modifiers( -1350 expression, -1351 self.wrap(expression), -1352 self.expressions(expression, key="pivots", sep=" "), -1353 alias, -1354 ) +1349 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: +1350 this = self.sql(expression, "this") +1351 kind = expression.text("kind") +1352 if kind: +1353 kind = f"{kind}." +1354 return f"@@{kind}{this}" 1355 -1356 return self.prepend_ctes(expression, sql) -1357 -1358 def qualify_sql(self, expression: exp.Qualify) -> str: -1359 this = self.indent(self.sql(expression, "this")) -1360 return f"{self.seg('QUALIFY')}{self.sep()}{this}" -1361 -1362 def union_sql(self, expression: exp.Union) -> str: -1363 return self.prepend_ctes( +1356 def placeholder_sql(self, expression: exp.Placeholder) -> str: +1357 return f":{expression.name}" if expression.name else "?" +1358 +1359 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: +1360 alias = self.sql(expression, "alias") +1361 alias = f"{sep}{alias}" if alias else "" +1362 +1363 sql = self.query_modifiers( 1364 expression, -1365 self.set_operation(expression, self.union_op(expression)), -1366 ) -1367 -1368 def union_op(self, expression: exp.Union) -> str: -1369 kind = " DISTINCT" if self.EXPLICIT_UNION else "" -1370 kind = kind if expression.args.get("distinct") else " ALL" -1371 return f"UNION{kind}" -1372 -1373 def unnest_sql(self, expression: exp.Unnest) -> str: -1374 args = self.expressions(expression, flat=True) -1375 alias = expression.args.get("alias") -1376 if alias and self.unnest_column_only: -1377 columns = alias.columns -1378 alias = self.sql(columns[0]) if columns else "" -1379 else: -1380 alias = self.sql(expression, "alias") -1381 alias = f" AS {alias}" if alias else alias -1382 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" -1383 offset = expression.args.get("offset") -1384 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" -1385 return f"UNNEST({args}){ordinality}{alias}{offset}" +1365 self.wrap(expression), +1366 self.expressions(expression, key="pivots", sep=" "), +1367 alias, +1368 ) +1369 +1370 return self.prepend_ctes(expression, sql) +1371 +1372 def qualify_sql(self, expression: exp.Qualify) -> str: +1373 this = self.indent(self.sql(expression, "this")) +1374 return f"{self.seg('QUALIFY')}{self.sep()}{this}" +1375 +1376 def union_sql(self, expression: exp.Union) -> str: +1377 return self.prepend_ctes( +1378 expression, +1379 self.set_operation(expression, self.union_op(expression)), +1380 ) +1381 +1382 def union_op(self, expression: exp.Union) -> str: +1383 kind = " DISTINCT" if self.EXPLICIT_UNION else "" +1384 kind = kind if expression.args.get("distinct") else " ALL" +1385 return f"UNION{kind}" 1386 -1387 def where_sql(self, expression: exp.Where) -> str: -1388 this = self.indent(self.sql(expression, "this")) -1389 return f"{self.seg('WHERE')}{self.sep()}{this}" -1390 -1391 def window_sql(self, expression: exp.Window) -> str: -1392 this = self.sql(expression, "this") -1393 -1394 partition = self.partition_by_sql(expression) -1395 -1396 order = expression.args.get("order") -1397 order_sql = self.order_sql(order, flat=True) if order else "" -1398 -1399 partition_sql = partition + " " if partition and order else partition +1387 def unnest_sql(self, expression: exp.Unnest) -> str: +1388 args = self.expressions(expression, flat=True) +1389 alias = expression.args.get("alias") +1390 if alias and self.unnest_column_only: +1391 columns = alias.columns +1392 alias = self.sql(columns[0]) if columns else "" +1393 else: +1394 alias = self.sql(expression, "alias") +1395 alias = f" AS {alias}" if alias else alias +1396 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" +1397 offset = expression.args.get("offset") +1398 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" +1399 return f"UNNEST({args}){ordinality}{alias}{offset}" 1400 -1401 spec = expression.args.get("spec") -1402 spec_sql = " " + self.window_spec_sql(spec) if spec else "" -1403 -1404 alias = self.sql(expression, "alias") -1405 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" -1406 -1407 if not partition and not order and not spec and alias: -1408 return f"{this} {alias}" +1401 def where_sql(self, expression: exp.Where) -> str: +1402 this = self.indent(self.sql(expression, "this")) +1403 return f"{self.seg('WHERE')}{self.sep()}{this}" +1404 +1405 def window_sql(self, expression: exp.Window) -> str: +1406 this = self.sql(expression, "this") +1407 +1408 partition = self.partition_by_sql(expression) 1409 -1410 window_args = alias + partition_sql + order_sql + spec_sql -1411 -1412 return f"{this} ({window_args.strip()})" -1413 -1414 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: -1415 partition = self.expressions(expression, key="partition_by", flat=True) -1416 return f"PARTITION BY {partition}" if partition else "" +1410 order = expression.args.get("order") +1411 order_sql = self.order_sql(order, flat=True) if order else "" +1412 +1413 partition_sql = partition + " " if partition and order else partition +1414 +1415 spec = expression.args.get("spec") +1416 spec_sql = " " + self.window_spec_sql(spec) if spec else "" 1417 -1418 def window_spec_sql(self, expression: exp.WindowSpec) -> str: -1419 kind = self.sql(expression, "kind") -1420 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") -1421 end = ( -1422 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") -1423 or "CURRENT ROW" -1424 ) -1425 return f"{kind} BETWEEN {start} AND {end}" -1426 -1427 def withingroup_sql(self, expression: exp.WithinGroup) -> str: -1428 this = self.sql(expression, "this") -1429 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space -1430 return f"{this} WITHIN GROUP ({expression_sql})" +1418 alias = self.sql(expression, "alias") +1419 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" +1420 +1421 if not partition and not order and not spec and alias: +1422 return f"{this} {alias}" +1423 +1424 window_args = alias + partition_sql + order_sql + spec_sql +1425 +1426 return f"{this} ({window_args.strip()})" +1427 +1428 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: +1429 partition = self.expressions(expression, key="partition_by", flat=True) +1430 return f"PARTITION BY {partition}" if partition else "" 1431 -1432 def between_sql(self, expression: exp.Between) -> str: -1433 this = self.sql(expression, "this") -1434 low = self.sql(expression, "low") -1435 high = self.sql(expression, "high") -1436 return f"{this} BETWEEN {low} AND {high}" -1437 -1438 def bracket_sql(self, expression: exp.Bracket) -> str: -1439 expressions = apply_index_offset(expression.expressions, self.index_offset) -1440 expressions_sql = ", ".join(self.sql(e) for e in expressions) -1441 -1442 return f"{self.sql(expression, 'this')}[{expressions_sql}]" -1443 -1444 def all_sql(self, expression: exp.All) -> str: -1445 return f"ALL {self.wrap(expression)}" -1446 -1447 def any_sql(self, expression: exp.Any) -> str: -1448 this = self.sql(expression, "this") -1449 if isinstance(expression.this, exp.Subqueryable): -1450 this = self.wrap(this) -1451 return f"ANY {this}" -1452 -1453 def exists_sql(self, expression: exp.Exists) -> str: -1454 return f"EXISTS{self.wrap(expression)}" +1432 def window_spec_sql(self, expression: exp.WindowSpec) -> str: +1433 kind = self.sql(expression, "kind") +1434 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") +1435 end = ( +1436 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") +1437 or "CURRENT ROW" +1438 ) +1439 return f"{kind} BETWEEN {start} AND {end}" +1440 +1441 def withingroup_sql(self, expression: exp.WithinGroup) -> str: +1442 this = self.sql(expression, "this") +1443 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space +1444 return f"{this} WITHIN GROUP ({expression_sql})" +1445 +1446 def between_sql(self, expression: exp.Between) -> str: +1447 this = self.sql(expression, "this") +1448 low = self.sql(expression, "low") +1449 high = self.sql(expression, "high") +1450 return f"{this} BETWEEN {low} AND {high}" +1451 +1452 def bracket_sql(self, expression: exp.Bracket) -> str: +1453 expressions = apply_index_offset(expression.expressions, self.index_offset) +1454 expressions_sql = ", ".join(self.sql(e) for e in expressions) 1455 -1456 def case_sql(self, expression: exp.Case) -> str: -1457 this = self.sql(expression, "this") -1458 statements = [f"CASE {this}" if this else "CASE"] -1459 -1460 for e in expression.args["ifs"]: -1461 statements.append(f"WHEN {self.sql(e, 'this')}") -1462 statements.append(f"THEN {self.sql(e, 'true')}") -1463 -1464 default = self.sql(expression, "default") -1465 -1466 if default: -1467 statements.append(f"ELSE {default}") -1468 -1469 statements.append("END") -1470 -1471 if self.pretty and self.text_width(statements) > self._max_text_width: -1472 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1456 return f"{self.sql(expression, 'this')}[{expressions_sql}]" +1457 +1458 def all_sql(self, expression: exp.All) -> str: +1459 return f"ALL {self.wrap(expression)}" +1460 +1461 def any_sql(self, expression: exp.Any) -> str: +1462 this = self.sql(expression, "this") +1463 if isinstance(expression.this, exp.Subqueryable): +1464 this = self.wrap(this) +1465 return f"ANY {this}" +1466 +1467 def exists_sql(self, expression: exp.Exists) -> str: +1468 return f"EXISTS{self.wrap(expression)}" +1469 +1470 def case_sql(self, expression: exp.Case) -> str: +1471 this = self.sql(expression, "this") +1472 statements = [f"CASE {this}" if this else "CASE"] 1473 -1474 return " ".join(statements) -1475 -1476 def constraint_sql(self, expression: exp.Constraint) -> str: -1477 this = self.sql(expression, "this") -1478 expressions = self.expressions(expression, flat=True) -1479 return f"CONSTRAINT {this} {expressions}" -1480 -1481 def extract_sql(self, expression: exp.Extract) -> str: -1482 this = self.sql(expression, "this") -1483 expression_sql = self.sql(expression, "expression") -1484 return f"EXTRACT({this} FROM {expression_sql})" -1485 -1486 def trim_sql(self, expression: exp.Trim) -> str: -1487 trim_type = self.sql(expression, "position") -1488 -1489 if trim_type == "LEADING": -1490 return self.func("LTRIM", expression.this) -1491 elif trim_type == "TRAILING": -1492 return self.func("RTRIM", expression.this) -1493 else: -1494 return self.func("TRIM", expression.this, expression.expression) -1495 -1496 def concat_sql(self, expression: exp.Concat) -> str: -1497 if len(expression.expressions) == 1: -1498 return self.sql(expression.expressions[0]) -1499 return self.function_fallback_sql(expression) -1500 -1501 def check_sql(self, expression: exp.Check) -> str: -1502 this = self.sql(expression, key="this") -1503 return f"CHECK ({this})" -1504 -1505 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: -1506 expressions = self.expressions(expression, flat=True) -1507 reference = self.sql(expression, "reference") -1508 reference = f" {reference}" if reference else "" -1509 delete = self.sql(expression, "delete") -1510 delete = f" ON DELETE {delete}" if delete else "" -1511 update = self.sql(expression, "update") -1512 update = f" ON UPDATE {update}" if update else "" -1513 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" +1474 for e in expression.args["ifs"]: +1475 statements.append(f"WHEN {self.sql(e, 'this')}") +1476 statements.append(f"THEN {self.sql(e, 'true')}") +1477 +1478 default = self.sql(expression, "default") +1479 +1480 if default: +1481 statements.append(f"ELSE {default}") +1482 +1483 statements.append("END") +1484 +1485 if self.pretty and self.text_width(statements) > self._max_text_width: +1486 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1487 +1488 return " ".join(statements) +1489 +1490 def constraint_sql(self, expression: exp.Constraint) -> str: +1491 this = self.sql(expression, "this") +1492 expressions = self.expressions(expression, flat=True) +1493 return f"CONSTRAINT {this} {expressions}" +1494 +1495 def extract_sql(self, expression: exp.Extract) -> str: +1496 this = self.sql(expression, "this") +1497 expression_sql = self.sql(expression, "expression") +1498 return f"EXTRACT({this} FROM {expression_sql})" +1499 +1500 def trim_sql(self, expression: exp.Trim) -> str: +1501 trim_type = self.sql(expression, "position") +1502 +1503 if trim_type == "LEADING": +1504 return self.func("LTRIM", expression.this) +1505 elif trim_type == "TRAILING": +1506 return self.func("RTRIM", expression.this) +1507 else: +1508 return self.func("TRIM", expression.this, expression.expression) +1509 +1510 def concat_sql(self, expression: exp.Concat) -> str: +1511 if len(expression.expressions) == 1: +1512 return self.sql(expression.expressions[0]) +1513 return self.function_fallback_sql(expression) 1514 -1515 def primarykey_sql(self, expression: exp.ForeignKey) -> str: -1516 expressions = self.expressions(expression, flat=True) -1517 options = self.expressions(expression, "options", flat=True, sep=" ") -1518 options = f" {options}" if options else "" -1519 return f"PRIMARY KEY ({expressions}){options}" -1520 -1521 def unique_sql(self, expression: exp.Unique) -> str: -1522 columns = self.expressions(expression, key="expressions") -1523 return f"UNIQUE ({columns})" -1524 -1525 def if_sql(self, expression: exp.If) -> str: -1526 return self.case_sql( -1527 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) -1528 ) -1529 -1530 def in_sql(self, expression: exp.In) -> str: -1531 query = expression.args.get("query") -1532 unnest = expression.args.get("unnest") -1533 field = expression.args.get("field") -1534 is_global = " GLOBAL" if expression.args.get("is_global") else "" -1535 -1536 if query: -1537 in_sql = self.wrap(query) -1538 elif unnest: -1539 in_sql = self.in_unnest_op(unnest) -1540 elif field: -1541 in_sql = self.sql(field) -1542 else: -1543 in_sql = f"({self.expressions(expression, flat=True)})" -1544 -1545 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" -1546 -1547 def in_unnest_op(self, unnest: exp.Unnest) -> str: -1548 return f"(SELECT {self.sql(unnest)})" +1515 def check_sql(self, expression: exp.Check) -> str: +1516 this = self.sql(expression, key="this") +1517 return f"CHECK ({this})" +1518 +1519 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: +1520 expressions = self.expressions(expression, flat=True) +1521 reference = self.sql(expression, "reference") +1522 reference = f" {reference}" if reference else "" +1523 delete = self.sql(expression, "delete") +1524 delete = f" ON DELETE {delete}" if delete else "" +1525 update = self.sql(expression, "update") +1526 update = f" ON UPDATE {update}" if update else "" +1527 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" +1528 +1529 def primarykey_sql(self, expression: exp.ForeignKey) -> str: +1530 expressions = self.expressions(expression, flat=True) +1531 options = self.expressions(expression, "options", flat=True, sep=" ") +1532 options = f" {options}" if options else "" +1533 return f"PRIMARY KEY ({expressions}){options}" +1534 +1535 def unique_sql(self, expression: exp.Unique) -> str: +1536 columns = self.expressions(expression, key="expressions") +1537 return f"UNIQUE ({columns})" +1538 +1539 def if_sql(self, expression: exp.If) -> str: +1540 return self.case_sql( +1541 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) +1542 ) +1543 +1544 def in_sql(self, expression: exp.In) -> str: +1545 query = expression.args.get("query") +1546 unnest = expression.args.get("unnest") +1547 field = expression.args.get("field") +1548 is_global = " GLOBAL" if expression.args.get("is_global") else "" 1549 -1550 def interval_sql(self, expression: exp.Interval) -> str: -1551 this = expression.args.get("this") -1552 if this: -1553 this = ( -1554 f" {this}" -1555 if isinstance(this, exp.Literal) or isinstance(this, exp.Paren) -1556 else f" ({this})" -1557 ) -1558 else: -1559 this = "" -1560 unit = expression.args.get("unit") -1561 unit = f" {unit}" if unit else "" -1562 return f"INTERVAL{this}{unit}" +1550 if query: +1551 in_sql = self.wrap(query) +1552 elif unnest: +1553 in_sql = self.in_unnest_op(unnest) +1554 elif field: +1555 in_sql = self.sql(field) +1556 else: +1557 in_sql = f"({self.expressions(expression, flat=True)})" +1558 +1559 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" +1560 +1561 def in_unnest_op(self, unnest: exp.Unnest) -> str: +1562 return f"(SELECT {self.sql(unnest)})" 1563 -1564 def return_sql(self, expression: exp.Return) -> str: -1565 return f"RETURN {self.sql(expression, 'this')}" -1566 -1567 def reference_sql(self, expression: exp.Reference) -> str: -1568 this = self.sql(expression, "this") -1569 expressions = self.expressions(expression, flat=True) -1570 expressions = f"({expressions})" if expressions else "" -1571 options = self.expressions(expression, "options", flat=True, sep=" ") -1572 options = f" {options}" if options else "" -1573 return f"REFERENCES {this}{expressions}{options}" -1574 -1575 def anonymous_sql(self, expression: exp.Anonymous) -> str: -1576 return self.func(expression.name, *expression.expressions) +1564 def interval_sql(self, expression: exp.Interval) -> str: +1565 this = expression.args.get("this") +1566 if this: +1567 this = ( +1568 f" {this}" +1569 if isinstance(this, exp.Literal) or isinstance(this, exp.Paren) +1570 else f" ({this})" +1571 ) +1572 else: +1573 this = "" +1574 unit = expression.args.get("unit") +1575 unit = f" {unit}" if unit else "" +1576 return f"INTERVAL{this}{unit}" 1577 -1578 def paren_sql(self, expression: exp.Paren) -> str: -1579 if isinstance(expression.unnest(), exp.Select): -1580 sql = self.wrap(expression) -1581 else: -1582 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") -1583 sql = f"({sql}{self.seg(')', sep='')}" -1584 -1585 return self.prepend_ctes(expression, sql) -1586 -1587 def neg_sql(self, expression: exp.Neg) -> str: -1588 # This makes sure we don't convert "- - 5" to "--5", which is a comment -1589 this_sql = self.sql(expression, "this") -1590 sep = " " if this_sql[0] == "-" else "" -1591 return f"-{sep}{this_sql}" -1592 -1593 def not_sql(self, expression: exp.Not) -> str: -1594 return f"NOT {self.sql(expression, 'this')}" -1595 -1596 def alias_sql(self, expression: exp.Alias) -> str: -1597 to_sql = self.sql(expression, "alias") -1598 to_sql = f" AS {to_sql}" if to_sql else "" -1599 return f"{self.sql(expression, 'this')}{to_sql}" +1578 def return_sql(self, expression: exp.Return) -> str: +1579 return f"RETURN {self.sql(expression, 'this')}" +1580 +1581 def reference_sql(self, expression: exp.Reference) -> str: +1582 this = self.sql(expression, "this") +1583 expressions = self.expressions(expression, flat=True) +1584 expressions = f"({expressions})" if expressions else "" +1585 options = self.expressions(expression, "options", flat=True, sep=" ") +1586 options = f" {options}" if options else "" +1587 return f"REFERENCES {this}{expressions}{options}" +1588 +1589 def anonymous_sql(self, expression: exp.Anonymous) -> str: +1590 return self.func(expression.name, *expression.expressions) +1591 +1592 def paren_sql(self, expression: exp.Paren) -> str: +1593 if isinstance(expression.unnest(), exp.Select): +1594 sql = self.wrap(expression) +1595 else: +1596 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") +1597 sql = f"({sql}{self.seg(')', sep='')}" +1598 +1599 return self.prepend_ctes(expression, sql) 1600 -1601 def aliases_sql(self, expression: exp.Aliases) -> str: -1602 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" -1603 -1604 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: -1605 this = self.sql(expression, "this") -1606 zone = self.sql(expression, "zone") -1607 return f"{this} AT TIME ZONE {zone}" -1608 -1609 def add_sql(self, expression: exp.Add) -> str: -1610 return self.binary(expression, "+") -1611 -1612 def and_sql(self, expression: exp.And) -> str: -1613 return self.connector_sql(expression, "AND") +1601 def neg_sql(self, expression: exp.Neg) -> str: +1602 # This makes sure we don't convert "- - 5" to "--5", which is a comment +1603 this_sql = self.sql(expression, "this") +1604 sep = " " if this_sql[0] == "-" else "" +1605 return f"-{sep}{this_sql}" +1606 +1607 def not_sql(self, expression: exp.Not) -> str: +1608 return f"NOT {self.sql(expression, 'this')}" +1609 +1610 def alias_sql(self, expression: exp.Alias) -> str: +1611 to_sql = self.sql(expression, "alias") +1612 to_sql = f" AS {to_sql}" if to_sql else "" +1613 return f"{self.sql(expression, 'this')}{to_sql}" 1614 -1615 def connector_sql(self, expression: exp.Connector, op: str) -> str: -1616 if not self.pretty: -1617 return self.binary(expression, op) -1618 -1619 sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False)) -1620 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " -1621 return f"{sep}{op} ".join(sqls) +1615 def aliases_sql(self, expression: exp.Aliases) -> str: +1616 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" +1617 +1618 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: +1619 this = self.sql(expression, "this") +1620 zone = self.sql(expression, "zone") +1621 return f"{this} AT TIME ZONE {zone}" 1622 -1623 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: -1624 return self.binary(expression, "&") +1623 def add_sql(self, expression: exp.Add) -> str: +1624 return self.binary(expression, "+") 1625 -1626 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: -1627 return self.binary(expression, "<<") +1626 def and_sql(self, expression: exp.And) -> str: +1627 return self.connector_sql(expression, "AND") 1628 -1629 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: -1630 return f"~{self.sql(expression, 'this')}" -1631 -1632 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: -1633 return self.binary(expression, "|") -1634 -1635 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: -1636 return self.binary(expression, ">>") -1637 -1638 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: -1639 return self.binary(expression, "^") -1640 -1641 def cast_sql(self, expression: exp.Cast) -> str: -1642 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -1643 -1644 def currentdate_sql(self, expression: exp.CurrentDate) -> str: -1645 zone = self.sql(expression, "this") -1646 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" -1647 -1648 def collate_sql(self, expression: exp.Collate) -> str: -1649 return self.binary(expression, "COLLATE") -1650 -1651 def command_sql(self, expression: exp.Command) -> str: -1652 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" -1653 -1654 def comment_sql(self, expression: exp.Comment) -> str: -1655 this = self.sql(expression, "this") -1656 kind = expression.args["kind"] -1657 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " -1658 expression_sql = self.sql(expression, "expression") -1659 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" -1660 -1661 def transaction_sql(self, *_) -> str: -1662 return "BEGIN" -1663 -1664 def commit_sql(self, expression: exp.Commit) -> str: -1665 chain = expression.args.get("chain") -1666 if chain is not None: -1667 chain = " AND CHAIN" if chain else " AND NO CHAIN" -1668 -1669 return f"COMMIT{chain or ''}" -1670 -1671 def rollback_sql(self, expression: exp.Rollback) -> str: -1672 savepoint = expression.args.get("savepoint") -1673 savepoint = f" TO {savepoint}" if savepoint else "" -1674 return f"ROLLBACK{savepoint}" -1675 -1676 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: -1677 this = self.sql(expression, "this") -1678 -1679 dtype = self.sql(expression, "dtype") -1680 if dtype: -1681 collate = self.sql(expression, "collate") -1682 collate = f" COLLATE {collate}" if collate else "" -1683 using = self.sql(expression, "using") -1684 using = f" USING {using}" if using else "" -1685 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" -1686 -1687 default = self.sql(expression, "default") -1688 if default: -1689 return f"ALTER COLUMN {this} SET DEFAULT {default}" -1690 -1691 if not expression.args.get("drop"): -1692 self.unsupported("Unsupported ALTER COLUMN syntax") -1693 -1694 return f"ALTER COLUMN {this} DROP DEFAULT" -1695 -1696 def renametable_sql(self, expression: exp.RenameTable) -> str: -1697 this = self.sql(expression, "this") -1698 return f"RENAME TO {this}" -1699 -1700 def altertable_sql(self, expression: exp.AlterTable) -> str: -1701 actions = expression.args["actions"] -1702 -1703 if isinstance(actions[0], exp.ColumnDef): -1704 actions = self.expressions(expression, "actions", prefix="ADD COLUMN ") -1705 elif isinstance(actions[0], exp.Schema): -1706 actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ") -1707 elif isinstance(actions[0], exp.Delete): -1708 actions = self.expressions(expression, "actions", flat=True) -1709 else: -1710 actions = self.expressions(expression, "actions") -1711 -1712 exists = " IF EXISTS" if expression.args.get("exists") else "" -1713 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" -1714 -1715 def droppartition_sql(self, expression: exp.DropPartition) -> str: -1716 expressions = self.expressions(expression) -1717 exists = " IF EXISTS " if expression.args.get("exists") else " " -1718 return f"DROP{exists}{expressions}" -1719 -1720 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: -1721 this = self.sql(expression, "this") -1722 expression_ = self.sql(expression, "expression") -1723 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" -1724 -1725 enforced = expression.args.get("enforced") -1726 if enforced is not None: -1727 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" +1629 def connector_sql(self, expression: exp.Connector, op: str) -> str: +1630 if not self.pretty: +1631 return self.binary(expression, op) +1632 +1633 sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False)) +1634 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " +1635 return f"{sep}{op} ".join(sqls) +1636 +1637 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: +1638 return self.binary(expression, "&") +1639 +1640 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: +1641 return self.binary(expression, "<<") +1642 +1643 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: +1644 return f"~{self.sql(expression, 'this')}" +1645 +1646 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: +1647 return self.binary(expression, "|") +1648 +1649 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: +1650 return self.binary(expression, ">>") +1651 +1652 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: +1653 return self.binary(expression, "^") +1654 +1655 def cast_sql(self, expression: exp.Cast) -> str: +1656 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1657 +1658 def currentdate_sql(self, expression: exp.CurrentDate) -> str: +1659 zone = self.sql(expression, "this") +1660 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" +1661 +1662 def collate_sql(self, expression: exp.Collate) -> str: +1663 return self.binary(expression, "COLLATE") +1664 +1665 def command_sql(self, expression: exp.Command) -> str: +1666 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" +1667 +1668 def comment_sql(self, expression: exp.Comment) -> str: +1669 this = self.sql(expression, "this") +1670 kind = expression.args["kind"] +1671 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " +1672 expression_sql = self.sql(expression, "expression") +1673 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" +1674 +1675 def transaction_sql(self, *_) -> str: +1676 return "BEGIN" +1677 +1678 def commit_sql(self, expression: exp.Commit) -> str: +1679 chain = expression.args.get("chain") +1680 if chain is not None: +1681 chain = " AND CHAIN" if chain else " AND NO CHAIN" +1682 +1683 return f"COMMIT{chain or ''}" +1684 +1685 def rollback_sql(self, expression: exp.Rollback) -> str: +1686 savepoint = expression.args.get("savepoint") +1687 savepoint = f" TO {savepoint}" if savepoint else "" +1688 return f"ROLLBACK{savepoint}" +1689 +1690 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: +1691 this = self.sql(expression, "this") +1692 +1693 dtype = self.sql(expression, "dtype") +1694 if dtype: +1695 collate = self.sql(expression, "collate") +1696 collate = f" COLLATE {collate}" if collate else "" +1697 using = self.sql(expression, "using") +1698 using = f" USING {using}" if using else "" +1699 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" +1700 +1701 default = self.sql(expression, "default") +1702 if default: +1703 return f"ALTER COLUMN {this} SET DEFAULT {default}" +1704 +1705 if not expression.args.get("drop"): +1706 self.unsupported("Unsupported ALTER COLUMN syntax") +1707 +1708 return f"ALTER COLUMN {this} DROP DEFAULT" +1709 +1710 def renametable_sql(self, expression: exp.RenameTable) -> str: +1711 this = self.sql(expression, "this") +1712 return f"RENAME TO {this}" +1713 +1714 def altertable_sql(self, expression: exp.AlterTable) -> str: +1715 actions = expression.args["actions"] +1716 +1717 if isinstance(actions[0], exp.ColumnDef): +1718 actions = self.expressions(expression, "actions", prefix="ADD COLUMN ") +1719 elif isinstance(actions[0], exp.Schema): +1720 actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ") +1721 elif isinstance(actions[0], exp.Delete): +1722 actions = self.expressions(expression, "actions", flat=True) +1723 else: +1724 actions = self.expressions(expression, "actions") +1725 +1726 exists = " IF EXISTS" if expression.args.get("exists") else "" +1727 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" 1728 -1729 return f"{add_constraint} {expression_}" -1730 -1731 def distinct_sql(self, expression: exp.Distinct) -> str: -1732 this = self.expressions(expression, flat=True) -1733 this = f" {this}" if this else "" -1734 -1735 on = self.sql(expression, "on") -1736 on = f" ON {on}" if on else "" -1737 return f"DISTINCT{this}{on}" +1729 def droppartition_sql(self, expression: exp.DropPartition) -> str: +1730 expressions = self.expressions(expression) +1731 exists = " IF EXISTS " if expression.args.get("exists") else " " +1732 return f"DROP{exists}{expressions}" +1733 +1734 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: +1735 this = self.sql(expression, "this") +1736 expression_ = self.sql(expression, "expression") +1737 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" 1738 -1739 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: -1740 return f"{self.sql(expression, 'this')} IGNORE NULLS" -1741 -1742 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: -1743 return f"{self.sql(expression, 'this')} RESPECT NULLS" +1739 enforced = expression.args.get("enforced") +1740 if enforced is not None: +1741 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" +1742 +1743 return f"{add_constraint} {expression_}" 1744 -1745 def intdiv_sql(self, expression: exp.IntDiv) -> str: -1746 return self.sql( -1747 exp.Cast( -1748 this=exp.Div(this=expression.this, expression=expression.expression), -1749 to=exp.DataType(this=exp.DataType.Type.INT), -1750 ) -1751 ) +1745 def distinct_sql(self, expression: exp.Distinct) -> str: +1746 this = self.expressions(expression, flat=True) +1747 this = f" {this}" if this else "" +1748 +1749 on = self.sql(expression, "on") +1750 on = f" ON {on}" if on else "" +1751 return f"DISTINCT{this}{on}" 1752 -1753 def dpipe_sql(self, expression: exp.DPipe) -> str: -1754 return self.binary(expression, "||") +1753 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: +1754 return f"{self.sql(expression, 'this')} IGNORE NULLS" 1755 -1756 def div_sql(self, expression: exp.Div) -> str: -1757 return self.binary(expression, "/") +1756 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: +1757 return f"{self.sql(expression, 'this')} RESPECT NULLS" 1758 -1759 def overlaps_sql(self, expression: exp.Overlaps) -> str: -1760 return self.binary(expression, "OVERLAPS") -1761 -1762 def distance_sql(self, expression: exp.Distance) -> str: -1763 return self.binary(expression, "<->") -1764 -1765 def dot_sql(self, expression: exp.Dot) -> str: -1766 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" -1767 -1768 def eq_sql(self, expression: exp.EQ) -> str: -1769 return self.binary(expression, "=") -1770 -1771 def escape_sql(self, expression: exp.Escape) -> str: -1772 return self.binary(expression, "ESCAPE") +1759 def intdiv_sql(self, expression: exp.IntDiv) -> str: +1760 div = self.binary(expression, "/") +1761 return self.sql(exp.Cast(this=div, to=exp.DataType.build("INT"))) +1762 +1763 def dpipe_sql(self, expression: exp.DPipe) -> str: +1764 return self.binary(expression, "||") +1765 +1766 def div_sql(self, expression: exp.Div) -> str: +1767 div = self.binary(expression, "/") +1768 +1769 if not self.INTEGER_DIVISION: +1770 return self.sql(exp.Cast(this=div, to=exp.DataType.build("INT"))) +1771 +1772 return div 1773 -1774 def glob_sql(self, expression: exp.Glob) -> str: -1775 return self.binary(expression, "GLOB") -1776 -1777 def gt_sql(self, expression: exp.GT) -> str: -1778 return self.binary(expression, ">") -1779 -1780 def gte_sql(self, expression: exp.GTE) -> str: -1781 return self.binary(expression, ">=") -1782 -1783 def ilike_sql(self, expression: exp.ILike) -> str: -1784 return self.binary(expression, "ILIKE") -1785 -1786 def is_sql(self, expression: exp.Is) -> str: -1787 return self.binary(expression, "IS") -1788 -1789 def like_sql(self, expression: exp.Like) -> str: -1790 return self.binary(expression, "LIKE") -1791 -1792 def similarto_sql(self, expression: exp.SimilarTo) -> str: -1793 return self.binary(expression, "SIMILAR TO") -1794 -1795 def lt_sql(self, expression: exp.LT) -> str: -1796 return self.binary(expression, "<") -1797 -1798 def lte_sql(self, expression: exp.LTE) -> str: -1799 return self.binary(expression, "<=") -1800 -1801 def mod_sql(self, expression: exp.Mod) -> str: -1802 return self.binary(expression, "%") -1803 -1804 def mul_sql(self, expression: exp.Mul) -> str: -1805 return self.binary(expression, "*") -1806 -1807 def neq_sql(self, expression: exp.NEQ) -> str: -1808 return self.binary(expression, "<>") -1809 -1810 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: -1811 return self.binary(expression, "IS NOT DISTINCT FROM") -1812 -1813 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: -1814 return self.binary(expression, "IS DISTINCT FROM") -1815 -1816 def or_sql(self, expression: exp.Or) -> str: -1817 return self.connector_sql(expression, "OR") -1818 -1819 def slice_sql(self, expression: exp.Slice) -> str: -1820 return self.binary(expression, ":") -1821 -1822 def sub_sql(self, expression: exp.Sub) -> str: -1823 return self.binary(expression, "-") -1824 -1825 def trycast_sql(self, expression: exp.TryCast) -> str: -1826 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -1827 -1828 def use_sql(self, expression: exp.Use) -> str: -1829 kind = self.sql(expression, "kind") -1830 kind = f" {kind}" if kind else "" -1831 this = self.sql(expression, "this") -1832 this = f" {this}" if this else "" -1833 return f"USE{kind}{this}" +1774 def floatdiv_sql(self, expression: exp.FloatDiv) -> str: +1775 if self.INTEGER_DIVISION: +1776 this = exp.Cast(this=expression.this, to=exp.DataType.build("DOUBLE")) +1777 return self.div_sql(exp.Div(this=this, expression=expression.expression)) +1778 +1779 return self.binary(expression, "/") +1780 +1781 def overlaps_sql(self, expression: exp.Overlaps) -> str: +1782 return self.binary(expression, "OVERLAPS") +1783 +1784 def distance_sql(self, expression: exp.Distance) -> str: +1785 return self.binary(expression, "<->") +1786 +1787 def dot_sql(self, expression: exp.Dot) -> str: +1788 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" +1789 +1790 def eq_sql(self, expression: exp.EQ) -> str: +1791 return self.binary(expression, "=") +1792 +1793 def escape_sql(self, expression: exp.Escape) -> str: +1794 return self.binary(expression, "ESCAPE") +1795 +1796 def glob_sql(self, expression: exp.Glob) -> str: +1797 return self.binary(expression, "GLOB") +1798 +1799 def gt_sql(self, expression: exp.GT) -> str: +1800 return self.binary(expression, ">") +1801 +1802 def gte_sql(self, expression: exp.GTE) -> str: +1803 return self.binary(expression, ">=") +1804 +1805 def ilike_sql(self, expression: exp.ILike) -> str: +1806 return self.binary(expression, "ILIKE") +1807 +1808 def is_sql(self, expression: exp.Is) -> str: +1809 return self.binary(expression, "IS") +1810 +1811 def like_sql(self, expression: exp.Like) -> str: +1812 return self.binary(expression, "LIKE") +1813 +1814 def similarto_sql(self, expression: exp.SimilarTo) -> str: +1815 return self.binary(expression, "SIMILAR TO") +1816 +1817 def lt_sql(self, expression: exp.LT) -> str: +1818 return self.binary(expression, "<") +1819 +1820 def lte_sql(self, expression: exp.LTE) -> str: +1821 return self.binary(expression, "<=") +1822 +1823 def mod_sql(self, expression: exp.Mod) -> str: +1824 return self.binary(expression, "%") +1825 +1826 def mul_sql(self, expression: exp.Mul) -> str: +1827 return self.binary(expression, "*") +1828 +1829 def neq_sql(self, expression: exp.NEQ) -> str: +1830 return self.binary(expression, "<>") +1831 +1832 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: +1833 return self.binary(expression, "IS NOT DISTINCT FROM") 1834 -1835 def binary(self, expression: exp.Binary, op: str) -> str: -1836 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" +1835 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: +1836 return self.binary(expression, "IS DISTINCT FROM") 1837 -1838 def function_fallback_sql(self, expression: exp.Func) -> str: -1839 args = [] -1840 for arg_value in expression.args.values(): -1841 if isinstance(arg_value, list): -1842 for value in arg_value: -1843 args.append(value) -1844 else: -1845 args.append(arg_value) +1838 def or_sql(self, expression: exp.Or) -> str: +1839 return self.connector_sql(expression, "OR") +1840 +1841 def slice_sql(self, expression: exp.Slice) -> str: +1842 return self.binary(expression, ":") +1843 +1844 def sub_sql(self, expression: exp.Sub) -> str: +1845 return self.binary(expression, "-") 1846 -1847 return self.func(expression.sql_name(), *args) -1848 -1849 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: -1850 return f"{self.normalize_func(name)}({self.format_args(*args)})" -1851 -1852 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: -1853 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) -1854 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: -1855 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) -1856 return ", ".join(arg_sqls) -1857 -1858 def text_width(self, args: t.Iterable) -> int: -1859 return sum(len(arg) for arg in args) -1860 -1861 def format_time(self, expression: exp.Expression) -> t.Optional[str]: -1862 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) -1863 -1864 def expressions( -1865 self, -1866 expression: exp.Expression, -1867 key: t.Optional[str] = None, -1868 flat: bool = False, -1869 indent: bool = True, -1870 sep: str = ", ", -1871 prefix: str = "", -1872 ) -> str: -1873 expressions = expression.args.get(key or "expressions") -1874 -1875 if not expressions: -1876 return "" -1877 -1878 if flat: -1879 return sep.join(self.sql(e) for e in expressions) -1880 -1881 num_sqls = len(expressions) +1847 def trycast_sql(self, expression: exp.TryCast) -> str: +1848 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1849 +1850 def use_sql(self, expression: exp.Use) -> str: +1851 kind = self.sql(expression, "kind") +1852 kind = f" {kind}" if kind else "" +1853 this = self.sql(expression, "this") +1854 this = f" {this}" if this else "" +1855 return f"USE{kind}{this}" +1856 +1857 def binary(self, expression: exp.Binary, op: str) -> str: +1858 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" +1859 +1860 def function_fallback_sql(self, expression: exp.Func) -> str: +1861 args = [] +1862 for arg_value in expression.args.values(): +1863 if isinstance(arg_value, list): +1864 for value in arg_value: +1865 args.append(value) +1866 else: +1867 args.append(arg_value) +1868 +1869 return self.func(expression.sql_name(), *args) +1870 +1871 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: +1872 return f"{self.normalize_func(name)}({self.format_args(*args)})" +1873 +1874 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: +1875 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) +1876 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: +1877 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) +1878 return ", ".join(arg_sqls) +1879 +1880 def text_width(self, args: t.Iterable) -> int: +1881 return sum(len(arg) for arg in args) 1882 -1883 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly -1884 pad = " " * self.pad -1885 stripped_sep = sep.strip() -1886 -1887 result_sqls = [] -1888 for i, e in enumerate(expressions): -1889 sql = self.sql(e, comment=False) -1890 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" -1891 -1892 if self.pretty: -1893 if self._leading_comma: -1894 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") -1895 else: -1896 result_sqls.append( -1897 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" -1898 ) -1899 else: -1900 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") -1901 -1902 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) -1903 return self.indent(result_sql, skip_first=False) if indent else result_sql +1883 def format_time(self, expression: exp.Expression) -> t.Optional[str]: +1884 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) +1885 +1886 def expressions( +1887 self, +1888 expression: exp.Expression, +1889 key: t.Optional[str] = None, +1890 flat: bool = False, +1891 indent: bool = True, +1892 sep: str = ", ", +1893 prefix: str = "", +1894 ) -> str: +1895 expressions = expression.args.get(key or "expressions") +1896 +1897 if not expressions: +1898 return "" +1899 +1900 if flat: +1901 return sep.join(self.sql(e) for e in expressions) +1902 +1903 num_sqls = len(expressions) 1904 -1905 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: -1906 flat = flat or isinstance(expression.parent, exp.Properties) -1907 expressions_sql = self.expressions(expression, flat=flat) -1908 if flat: -1909 return f"{op} {expressions_sql}" -1910 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" -1911 -1912 def naked_property(self, expression: exp.Property) -> str: -1913 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) -1914 if not property_name: -1915 self.unsupported(f"Unsupported property {expression.__class__.__name__}") -1916 return f"{property_name} {self.sql(expression, 'this')}" -1917 -1918 def set_operation(self, expression: exp.Expression, op: str) -> str: -1919 this = self.sql(expression, "this") -1920 op = self.seg(op) -1921 return self.query_modifiers( -1922 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" -1923 ) -1924 -1925 def tag_sql(self, expression: exp.Tag) -> str: -1926 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" -1927 -1928 def token_sql(self, token_type: TokenType) -> str: -1929 return self.TOKEN_MAPPING.get(token_type, token_type.name) -1930 -1931 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: -1932 this = self.sql(expression, "this") -1933 expressions = self.no_identify(self.expressions, expression) -1934 expressions = ( -1935 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" -1936 ) -1937 return f"{this}{expressions}" -1938 -1939 def joinhint_sql(self, expression: exp.JoinHint) -> str: -1940 this = self.sql(expression, "this") -1941 expressions = self.expressions(expression, flat=True) -1942 return f"{this}({expressions})" -1943 -1944 def kwarg_sql(self, expression: exp.Kwarg) -> str: -1945 return self.binary(expression, "=>") +1905 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly +1906 pad = " " * self.pad +1907 stripped_sep = sep.strip() +1908 +1909 result_sqls = [] +1910 for i, e in enumerate(expressions): +1911 sql = self.sql(e, comment=False) +1912 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" +1913 +1914 if self.pretty: +1915 if self._leading_comma: +1916 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") +1917 else: +1918 result_sqls.append( +1919 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" +1920 ) +1921 else: +1922 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") +1923 +1924 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) +1925 return self.indent(result_sql, skip_first=False) if indent else result_sql +1926 +1927 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: +1928 flat = flat or isinstance(expression.parent, exp.Properties) +1929 expressions_sql = self.expressions(expression, flat=flat) +1930 if flat: +1931 return f"{op} {expressions_sql}" +1932 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" +1933 +1934 def naked_property(self, expression: exp.Property) -> str: +1935 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) +1936 if not property_name: +1937 self.unsupported(f"Unsupported property {expression.__class__.__name__}") +1938 return f"{property_name} {self.sql(expression, 'this')}" +1939 +1940 def set_operation(self, expression: exp.Expression, op: str) -> str: +1941 this = self.sql(expression, "this") +1942 op = self.seg(op) +1943 return self.query_modifiers( +1944 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" +1945 ) 1946 -1947 def when_sql(self, expression: exp.When) -> str: -1948 this = self.sql(expression, "this") -1949 then_expression = expression.args.get("then") -1950 if isinstance(then_expression, exp.Insert): -1951 then = f"INSERT {self.sql(then_expression, 'this')}" -1952 if "expression" in then_expression.args: -1953 then += f" VALUES {self.sql(then_expression, 'expression')}" -1954 elif isinstance(then_expression, exp.Update): -1955 if isinstance(then_expression.args.get("expressions"), exp.Star): -1956 then = f"UPDATE {self.sql(then_expression, 'expressions')}" -1957 else: -1958 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" -1959 else: -1960 then = self.sql(then_expression) -1961 return f"WHEN {this} THEN {then}" -1962 -1963 def merge_sql(self, expression: exp.Merge) -> str: -1964 this = self.sql(expression, "this") -1965 using = f"USING {self.sql(expression, 'using')}" -1966 on = f"ON {self.sql(expression, 'on')}" -1967 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" +1947 def tag_sql(self, expression: exp.Tag) -> str: +1948 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" +1949 +1950 def token_sql(self, token_type: TokenType) -> str: +1951 return self.TOKEN_MAPPING.get(token_type, token_type.name) +1952 +1953 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: +1954 this = self.sql(expression, "this") +1955 expressions = self.no_identify(self.expressions, expression) +1956 expressions = ( +1957 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" +1958 ) +1959 return f"{this}{expressions}" +1960 +1961 def joinhint_sql(self, expression: exp.JoinHint) -> str: +1962 this = self.sql(expression, "this") +1963 expressions = self.expressions(expression, flat=True) +1964 return f"{this}({expressions})" +1965 +1966 def kwarg_sql(self, expression: exp.Kwarg) -> str: +1967 return self.binary(expression, "=>") +1968 +1969 def when_sql(self, expression: exp.When) -> str: +1970 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" +1971 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" +1972 condition = self.sql(expression, "condition") +1973 condition = f" AND {condition}" if condition else "" +1974 +1975 then_expression = expression.args.get("then") +1976 if isinstance(then_expression, exp.Insert): +1977 then = f"INSERT {self.sql(then_expression, 'this')}" +1978 if "expression" in then_expression.args: +1979 then += f" VALUES {self.sql(then_expression, 'expression')}" +1980 elif isinstance(then_expression, exp.Update): +1981 if isinstance(then_expression.args.get("expressions"), exp.Star): +1982 then = f"UPDATE {self.sql(then_expression, 'expressions')}" +1983 else: +1984 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" +1985 else: +1986 then = self.sql(then_expression) +1987 return f"WHEN {matched}{source}{condition} THEN {then}" +1988 +1989 def merge_sql(self, expression: exp.Merge) -> str: +1990 this = self.sql(expression, "this") +1991 using = f"USING {self.sql(expression, 'using')}" +1992 on = f"ON {self.sql(expression, 'on')}" +1993 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}"
    @@ -2768,1862 +2800,1888 @@ 110 # Whether or not create function uses an AS before the RETURN 111 CREATE_FUNCTION_RETURN_AS = True 112 - 113 TYPE_MAPPING = { - 114 exp.DataType.Type.NCHAR: "CHAR", - 115 exp.DataType.Type.NVARCHAR: "VARCHAR", - 116 exp.DataType.Type.MEDIUMTEXT: "TEXT", - 117 exp.DataType.Type.LONGTEXT: "TEXT", - 118 exp.DataType.Type.MEDIUMBLOB: "BLOB", - 119 exp.DataType.Type.LONGBLOB: "BLOB", - 120 exp.DataType.Type.INET: "INET", - 121 } - 122 - 123 STAR_MAPPING = { - 124 "except": "EXCEPT", - 125 "replace": "REPLACE", - 126 } - 127 - 128 TOKEN_MAPPING: t.Dict[TokenType, str] = {} - 129 - 130 STRUCT_DELIMITER = ("<", ">") - 131 - 132 PARAMETER_TOKEN = "@" + 113 # Whether or not to treat the division operator "/" as integer division + 114 INTEGER_DIVISION = True + 115 + 116 # Whether or not MERGE ... WHEN MATCHED BY SOURCE is allowed + 117 MATCHED_BY_SOURCE = True + 118 + 119 TYPE_MAPPING = { + 120 exp.DataType.Type.NCHAR: "CHAR", + 121 exp.DataType.Type.NVARCHAR: "VARCHAR", + 122 exp.DataType.Type.MEDIUMTEXT: "TEXT", + 123 exp.DataType.Type.LONGTEXT: "TEXT", + 124 exp.DataType.Type.MEDIUMBLOB: "BLOB", + 125 exp.DataType.Type.LONGBLOB: "BLOB", + 126 exp.DataType.Type.INET: "INET", + 127 } + 128 + 129 STAR_MAPPING = { + 130 "except": "EXCEPT", + 131 "replace": "REPLACE", + 132 } 133 - 134 PROPERTIES_LOCATION = { - 135 exp.AfterJournalProperty: exp.Properties.Location.POST_NAME, - 136 exp.AlgorithmProperty: exp.Properties.Location.POST_CREATE, - 137 exp.AutoIncrementProperty: exp.Properties.Location.POST_SCHEMA, - 138 exp.BlockCompressionProperty: exp.Properties.Location.POST_NAME, - 139 exp.CharacterSetProperty: exp.Properties.Location.POST_SCHEMA, - 140 exp.ChecksumProperty: exp.Properties.Location.POST_NAME, - 141 exp.CollateProperty: exp.Properties.Location.POST_SCHEMA, - 142 exp.Cluster: exp.Properties.Location.POST_SCHEMA, - 143 exp.DataBlocksizeProperty: exp.Properties.Location.POST_NAME, - 144 exp.DefinerProperty: exp.Properties.Location.POST_CREATE, - 145 exp.DistKeyProperty: exp.Properties.Location.POST_SCHEMA, - 146 exp.DistStyleProperty: exp.Properties.Location.POST_SCHEMA, - 147 exp.EngineProperty: exp.Properties.Location.POST_SCHEMA, - 148 exp.ExecuteAsProperty: exp.Properties.Location.POST_SCHEMA, - 149 exp.ExternalProperty: exp.Properties.Location.POST_CREATE, - 150 exp.FallbackProperty: exp.Properties.Location.POST_NAME, - 151 exp.FileFormatProperty: exp.Properties.Location.POST_WITH, - 152 exp.FreespaceProperty: exp.Properties.Location.POST_NAME, - 153 exp.IsolatedLoadingProperty: exp.Properties.Location.POST_NAME, - 154 exp.JournalProperty: exp.Properties.Location.POST_NAME, - 155 exp.LanguageProperty: exp.Properties.Location.POST_SCHEMA, - 156 exp.LikeProperty: exp.Properties.Location.POST_SCHEMA, - 157 exp.LocationProperty: exp.Properties.Location.POST_SCHEMA, - 158 exp.LockingProperty: exp.Properties.Location.POST_ALIAS, - 159 exp.LogProperty: exp.Properties.Location.POST_NAME, - 160 exp.MaterializedProperty: exp.Properties.Location.POST_CREATE, - 161 exp.MergeBlockRatioProperty: exp.Properties.Location.POST_NAME, - 162 exp.NoPrimaryIndexProperty: exp.Properties.Location.POST_EXPRESSION, - 163 exp.OnCommitProperty: exp.Properties.Location.POST_EXPRESSION, - 164 exp.PartitionedByProperty: exp.Properties.Location.POST_WITH, - 165 exp.Property: exp.Properties.Location.POST_WITH, - 166 exp.ReturnsProperty: exp.Properties.Location.POST_SCHEMA, - 167 exp.RowFormatDelimitedProperty: exp.Properties.Location.POST_SCHEMA, - 168 exp.RowFormatSerdeProperty: exp.Properties.Location.POST_SCHEMA, - 169 exp.SchemaCommentProperty: exp.Properties.Location.POST_SCHEMA, - 170 exp.SerdeProperties: exp.Properties.Location.POST_SCHEMA, - 171 exp.SetProperty: exp.Properties.Location.POST_CREATE, - 172 exp.SortKeyProperty: exp.Properties.Location.POST_SCHEMA, - 173 exp.SqlSecurityProperty: exp.Properties.Location.POST_CREATE, - 174 exp.TableFormatProperty: exp.Properties.Location.POST_WITH, - 175 exp.TemporaryProperty: exp.Properties.Location.POST_CREATE, - 176 exp.TransientProperty: exp.Properties.Location.POST_CREATE, - 177 exp.VolatilityProperty: exp.Properties.Location.POST_SCHEMA, - 178 exp.WithDataProperty: exp.Properties.Location.POST_EXPRESSION, - 179 exp.WithJournalTableProperty: exp.Properties.Location.POST_NAME, - 180 } - 181 - 182 WITH_SEPARATED_COMMENTS = (exp.Select, exp.From, exp.Where, exp.Binary) - 183 SENTINEL_LINE_BREAK = "__SQLGLOT__LB__" - 184 - 185 __slots__ = ( - 186 "time_mapping", - 187 "time_trie", - 188 "pretty", - 189 "quote_start", - 190 "quote_end", - 191 "identifier_start", - 192 "identifier_end", - 193 "identify", - 194 "normalize", - 195 "string_escape", - 196 "identifier_escape", - 197 "pad", - 198 "index_offset", - 199 "unnest_column_only", - 200 "alias_post_tablesample", - 201 "normalize_functions", - 202 "unsupported_level", - 203 "unsupported_messages", - 204 "null_ordering", - 205 "max_unsupported", - 206 "_indent", - 207 "_escaped_quote_end", - 208 "_escaped_identifier_end", - 209 "_leading_comma", - 210 "_max_text_width", - 211 "_comments", - 212 ) - 213 - 214 def __init__( - 215 self, - 216 time_mapping=None, - 217 time_trie=None, - 218 pretty=None, - 219 quote_start=None, - 220 quote_end=None, - 221 identifier_start=None, - 222 identifier_end=None, - 223 identify=False, - 224 normalize=False, - 225 string_escape=None, - 226 identifier_escape=None, - 227 pad=2, - 228 indent=2, - 229 index_offset=0, - 230 unnest_column_only=False, - 231 alias_post_tablesample=False, - 232 normalize_functions="upper", - 233 unsupported_level=ErrorLevel.WARN, - 234 null_ordering=None, - 235 max_unsupported=3, - 236 leading_comma=False, - 237 max_text_width=80, - 238 comments=True, - 239 ): - 240 import sqlglot - 241 - 242 self.time_mapping = time_mapping or {} - 243 self.time_trie = time_trie - 244 self.pretty = pretty if pretty is not None else sqlglot.pretty - 245 self.quote_start = quote_start or "'" - 246 self.quote_end = quote_end or "'" - 247 self.identifier_start = identifier_start or '"' - 248 self.identifier_end = identifier_end or '"' - 249 self.identify = identify - 250 self.normalize = normalize - 251 self.string_escape = string_escape or "'" - 252 self.identifier_escape = identifier_escape or '"' - 253 self.pad = pad - 254 self.index_offset = index_offset - 255 self.unnest_column_only = unnest_column_only - 256 self.alias_post_tablesample = alias_post_tablesample - 257 self.normalize_functions = normalize_functions - 258 self.unsupported_level = unsupported_level - 259 self.unsupported_messages = [] - 260 self.max_unsupported = max_unsupported - 261 self.null_ordering = null_ordering - 262 self._indent = indent - 263 self._escaped_quote_end = self.string_escape + self.quote_end - 264 self._escaped_identifier_end = self.identifier_escape + self.identifier_end - 265 self._leading_comma = leading_comma - 266 self._max_text_width = max_text_width - 267 self._comments = comments - 268 - 269 def generate(self, expression: t.Optional[exp.Expression]) -> str: - 270 """ - 271 Generates a SQL string by interpreting the given syntax tree. - 272 - 273 Args - 274 expression: the syntax tree. - 275 - 276 Returns - 277 the SQL string. - 278 """ - 279 self.unsupported_messages = [] - 280 sql = self.sql(expression).strip() + 134 TOKEN_MAPPING: t.Dict[TokenType, str] = {} + 135 + 136 STRUCT_DELIMITER = ("<", ">") + 137 + 138 PARAMETER_TOKEN = "@" + 139 + 140 PROPERTIES_LOCATION = { + 141 exp.AfterJournalProperty: exp.Properties.Location.POST_NAME, + 142 exp.AlgorithmProperty: exp.Properties.Location.POST_CREATE, + 143 exp.AutoIncrementProperty: exp.Properties.Location.POST_SCHEMA, + 144 exp.BlockCompressionProperty: exp.Properties.Location.POST_NAME, + 145 exp.CharacterSetProperty: exp.Properties.Location.POST_SCHEMA, + 146 exp.ChecksumProperty: exp.Properties.Location.POST_NAME, + 147 exp.CollateProperty: exp.Properties.Location.POST_SCHEMA, + 148 exp.Cluster: exp.Properties.Location.POST_SCHEMA, + 149 exp.DataBlocksizeProperty: exp.Properties.Location.POST_NAME, + 150 exp.DefinerProperty: exp.Properties.Location.POST_CREATE, + 151 exp.DistKeyProperty: exp.Properties.Location.POST_SCHEMA, + 152 exp.DistStyleProperty: exp.Properties.Location.POST_SCHEMA, + 153 exp.EngineProperty: exp.Properties.Location.POST_SCHEMA, + 154 exp.ExecuteAsProperty: exp.Properties.Location.POST_SCHEMA, + 155 exp.ExternalProperty: exp.Properties.Location.POST_CREATE, + 156 exp.FallbackProperty: exp.Properties.Location.POST_NAME, + 157 exp.FileFormatProperty: exp.Properties.Location.POST_WITH, + 158 exp.FreespaceProperty: exp.Properties.Location.POST_NAME, + 159 exp.IsolatedLoadingProperty: exp.Properties.Location.POST_NAME, + 160 exp.JournalProperty: exp.Properties.Location.POST_NAME, + 161 exp.LanguageProperty: exp.Properties.Location.POST_SCHEMA, + 162 exp.LikeProperty: exp.Properties.Location.POST_SCHEMA, + 163 exp.LocationProperty: exp.Properties.Location.POST_SCHEMA, + 164 exp.LockingProperty: exp.Properties.Location.POST_ALIAS, + 165 exp.LogProperty: exp.Properties.Location.POST_NAME, + 166 exp.MaterializedProperty: exp.Properties.Location.POST_CREATE, + 167 exp.MergeBlockRatioProperty: exp.Properties.Location.POST_NAME, + 168 exp.NoPrimaryIndexProperty: exp.Properties.Location.POST_EXPRESSION, + 169 exp.OnCommitProperty: exp.Properties.Location.POST_EXPRESSION, + 170 exp.PartitionedByProperty: exp.Properties.Location.POST_WITH, + 171 exp.Property: exp.Properties.Location.POST_WITH, + 172 exp.ReturnsProperty: exp.Properties.Location.POST_SCHEMA, + 173 exp.RowFormatDelimitedProperty: exp.Properties.Location.POST_SCHEMA, + 174 exp.RowFormatSerdeProperty: exp.Properties.Location.POST_SCHEMA, + 175 exp.SchemaCommentProperty: exp.Properties.Location.POST_SCHEMA, + 176 exp.SerdeProperties: exp.Properties.Location.POST_SCHEMA, + 177 exp.SetProperty: exp.Properties.Location.POST_CREATE, + 178 exp.SortKeyProperty: exp.Properties.Location.POST_SCHEMA, + 179 exp.SqlSecurityProperty: exp.Properties.Location.POST_CREATE, + 180 exp.TableFormatProperty: exp.Properties.Location.POST_WITH, + 181 exp.TemporaryProperty: exp.Properties.Location.POST_CREATE, + 182 exp.TransientProperty: exp.Properties.Location.POST_CREATE, + 183 exp.VolatilityProperty: exp.Properties.Location.POST_SCHEMA, + 184 exp.WithDataProperty: exp.Properties.Location.POST_EXPRESSION, + 185 exp.WithJournalTableProperty: exp.Properties.Location.POST_NAME, + 186 } + 187 + 188 WITH_SEPARATED_COMMENTS = (exp.Select, exp.From, exp.Where, exp.Binary) + 189 SENTINEL_LINE_BREAK = "__SQLGLOT__LB__" + 190 + 191 __slots__ = ( + 192 "time_mapping", + 193 "time_trie", + 194 "pretty", + 195 "quote_start", + 196 "quote_end", + 197 "identifier_start", + 198 "identifier_end", + 199 "identify", + 200 "normalize", + 201 "string_escape", + 202 "identifier_escape", + 203 "pad", + 204 "index_offset", + 205 "unnest_column_only", + 206 "alias_post_tablesample", + 207 "normalize_functions", + 208 "unsupported_level", + 209 "unsupported_messages", + 210 "null_ordering", + 211 "max_unsupported", + 212 "_indent", + 213 "_escaped_quote_end", + 214 "_escaped_identifier_end", + 215 "_leading_comma", + 216 "_max_text_width", + 217 "_comments", + 218 ) + 219 + 220 def __init__( + 221 self, + 222 time_mapping=None, + 223 time_trie=None, + 224 pretty=None, + 225 quote_start=None, + 226 quote_end=None, + 227 identifier_start=None, + 228 identifier_end=None, + 229 identify=False, + 230 normalize=False, + 231 string_escape=None, + 232 identifier_escape=None, + 233 pad=2, + 234 indent=2, + 235 index_offset=0, + 236 unnest_column_only=False, + 237 alias_post_tablesample=False, + 238 normalize_functions="upper", + 239 unsupported_level=ErrorLevel.WARN, + 240 null_ordering=None, + 241 max_unsupported=3, + 242 leading_comma=False, + 243 max_text_width=80, + 244 comments=True, + 245 ): + 246 import sqlglot + 247 + 248 self.time_mapping = time_mapping or {} + 249 self.time_trie = time_trie + 250 self.pretty = pretty if pretty is not None else sqlglot.pretty + 251 self.quote_start = quote_start or "'" + 252 self.quote_end = quote_end or "'" + 253 self.identifier_start = identifier_start or '"' + 254 self.identifier_end = identifier_end or '"' + 255 self.identify = identify + 256 self.normalize = normalize + 257 self.string_escape = string_escape or "'" + 258 self.identifier_escape = identifier_escape or '"' + 259 self.pad = pad + 260 self.index_offset = index_offset + 261 self.unnest_column_only = unnest_column_only + 262 self.alias_post_tablesample = alias_post_tablesample + 263 self.normalize_functions = normalize_functions + 264 self.unsupported_level = unsupported_level + 265 self.unsupported_messages = [] + 266 self.max_unsupported = max_unsupported + 267 self.null_ordering = null_ordering + 268 self._indent = indent + 269 self._escaped_quote_end = self.string_escape + self.quote_end + 270 self._escaped_identifier_end = self.identifier_escape + self.identifier_end + 271 self._leading_comma = leading_comma + 272 self._max_text_width = max_text_width + 273 self._comments = comments + 274 + 275 def generate(self, expression: t.Optional[exp.Expression]) -> str: + 276 """ + 277 Generates a SQL string by interpreting the given syntax tree. + 278 + 279 Args + 280 expression: the syntax tree. 281 - 282 if self.unsupported_level == ErrorLevel.IGNORE: - 283 return sql - 284 - 285 if self.unsupported_level == ErrorLevel.WARN: - 286 for msg in self.unsupported_messages: - 287 logger.warning(msg) - 288 elif self.unsupported_level == ErrorLevel.RAISE and self.unsupported_messages: - 289 raise UnsupportedError(concat_messages(self.unsupported_messages, self.max_unsupported)) + 282 Returns + 283 the SQL string. + 284 """ + 285 self.unsupported_messages = [] + 286 sql = self.sql(expression).strip() + 287 + 288 if self.unsupported_level == ErrorLevel.IGNORE: + 289 return sql 290 - 291 if self.pretty: - 292 sql = sql.replace(self.SENTINEL_LINE_BREAK, "\n") - 293 return sql - 294 - 295 def unsupported(self, message: str) -> None: - 296 if self.unsupported_level == ErrorLevel.IMMEDIATE: - 297 raise UnsupportedError(message) - 298 self.unsupported_messages.append(message) - 299 - 300 def sep(self, sep: str = " ") -> str: - 301 return f"{sep.strip()}\n" if self.pretty else sep - 302 - 303 def seg(self, sql: str, sep: str = " ") -> str: - 304 return f"{self.sep(sep)}{sql}" + 291 if self.unsupported_level == ErrorLevel.WARN: + 292 for msg in self.unsupported_messages: + 293 logger.warning(msg) + 294 elif self.unsupported_level == ErrorLevel.RAISE and self.unsupported_messages: + 295 raise UnsupportedError(concat_messages(self.unsupported_messages, self.max_unsupported)) + 296 + 297 if self.pretty: + 298 sql = sql.replace(self.SENTINEL_LINE_BREAK, "\n") + 299 return sql + 300 + 301 def unsupported(self, message: str) -> None: + 302 if self.unsupported_level == ErrorLevel.IMMEDIATE: + 303 raise UnsupportedError(message) + 304 self.unsupported_messages.append(message) 305 - 306 def pad_comment(self, comment: str) -> str: - 307 comment = " " + comment if comment[0].strip() else comment - 308 comment = comment + " " if comment[-1].strip() else comment - 309 return comment - 310 - 311 def maybe_comment(self, sql: str, expression: exp.Expression) -> str: - 312 comments = expression.comments if self._comments else None - 313 - 314 if not comments: - 315 return sql + 306 def sep(self, sep: str = " ") -> str: + 307 return f"{sep.strip()}\n" if self.pretty else sep + 308 + 309 def seg(self, sql: str, sep: str = " ") -> str: + 310 return f"{self.sep(sep)}{sql}" + 311 + 312 def pad_comment(self, comment: str) -> str: + 313 comment = " " + comment if comment[0].strip() else comment + 314 comment = comment + " " if comment[-1].strip() else comment + 315 return comment 316 - 317 sep = "\n" if self.pretty else " " - 318 comments_sql = sep.join( - 319 f"/*{self.pad_comment(comment)}*/" for comment in comments if comment - 320 ) - 321 - 322 if not comments_sql: - 323 return sql - 324 - 325 if isinstance(expression, self.WITH_SEPARATED_COMMENTS): - 326 return f"{comments_sql}{self.sep()}{sql}" + 317 def maybe_comment(self, sql: str, expression: exp.Expression) -> str: + 318 comments = expression.comments if self._comments else None + 319 + 320 if not comments: + 321 return sql + 322 + 323 sep = "\n" if self.pretty else " " + 324 comments_sql = sep.join( + 325 f"/*{self.pad_comment(comment)}*/" for comment in comments if comment + 326 ) 327 - 328 return f"{sql} {comments_sql}" - 329 - 330 def wrap(self, expression: exp.Expression | str) -> str: - 331 this_sql = self.indent( - 332 self.sql(expression) - 333 if isinstance(expression, (exp.Select, exp.Union)) - 334 else self.sql(expression, "this"), - 335 level=1, - 336 pad=0, - 337 ) - 338 return f"({self.sep('')}{this_sql}{self.seg(')', sep='')}" - 339 - 340 def no_identify(self, func: t.Callable[..., str], *args, **kwargs) -> str: - 341 original = self.identify - 342 self.identify = False - 343 result = func(*args, **kwargs) - 344 self.identify = original - 345 return result - 346 - 347 def normalize_func(self, name: str) -> str: - 348 if self.normalize_functions == "upper": - 349 return name.upper() - 350 if self.normalize_functions == "lower": - 351 return name.lower() - 352 return name - 353 - 354 def indent( - 355 self, - 356 sql: str, - 357 level: int = 0, - 358 pad: t.Optional[int] = None, - 359 skip_first: bool = False, - 360 skip_last: bool = False, - 361 ) -> str: - 362 if not self.pretty: - 363 return sql - 364 - 365 pad = self.pad if pad is None else pad - 366 lines = sql.split("\n") - 367 - 368 return "\n".join( - 369 line - 370 if (skip_first and i == 0) or (skip_last and i == len(lines) - 1) - 371 else f"{' ' * (level * self._indent + pad)}{line}" - 372 for i, line in enumerate(lines) - 373 ) - 374 - 375 def sql( - 376 self, - 377 expression: t.Optional[str | exp.Expression], - 378 key: t.Optional[str] = None, - 379 comment: bool = True, - 380 ) -> str: - 381 if not expression: - 382 return "" - 383 - 384 if isinstance(expression, str): - 385 return expression - 386 - 387 if key: - 388 return self.sql(expression.args.get(key)) + 328 if not comments_sql: + 329 return sql + 330 + 331 if isinstance(expression, self.WITH_SEPARATED_COMMENTS): + 332 return f"{comments_sql}{self.sep()}{sql}" + 333 + 334 return f"{sql} {comments_sql}" + 335 + 336 def wrap(self, expression: exp.Expression | str) -> str: + 337 this_sql = self.indent( + 338 self.sql(expression) + 339 if isinstance(expression, (exp.Select, exp.Union)) + 340 else self.sql(expression, "this"), + 341 level=1, + 342 pad=0, + 343 ) + 344 return f"({self.sep('')}{this_sql}{self.seg(')', sep='')}" + 345 + 346 def no_identify(self, func: t.Callable[..., str], *args, **kwargs) -> str: + 347 original = self.identify + 348 self.identify = False + 349 result = func(*args, **kwargs) + 350 self.identify = original + 351 return result + 352 + 353 def normalize_func(self, name: str) -> str: + 354 if self.normalize_functions == "upper": + 355 return name.upper() + 356 if self.normalize_functions == "lower": + 357 return name.lower() + 358 return name + 359 + 360 def indent( + 361 self, + 362 sql: str, + 363 level: int = 0, + 364 pad: t.Optional[int] = None, + 365 skip_first: bool = False, + 366 skip_last: bool = False, + 367 ) -> str: + 368 if not self.pretty: + 369 return sql + 370 + 371 pad = self.pad if pad is None else pad + 372 lines = sql.split("\n") + 373 + 374 return "\n".join( + 375 line + 376 if (skip_first and i == 0) or (skip_last and i == len(lines) - 1) + 377 else f"{' ' * (level * self._indent + pad)}{line}" + 378 for i, line in enumerate(lines) + 379 ) + 380 + 381 def sql( + 382 self, + 383 expression: t.Optional[str | exp.Expression], + 384 key: t.Optional[str] = None, + 385 comment: bool = True, + 386 ) -> str: + 387 if not expression: + 388 return "" 389 - 390 transform = self.TRANSFORMS.get(expression.__class__) - 391 - 392 if callable(transform): - 393 sql = transform(self, expression) - 394 elif transform: - 395 sql = transform - 396 elif isinstance(expression, exp.Expression): - 397 exp_handler_name = f"{expression.key}_sql" - 398 - 399 if hasattr(self, exp_handler_name): - 400 sql = getattr(self, exp_handler_name)(expression) - 401 elif isinstance(expression, exp.Func): - 402 sql = self.function_fallback_sql(expression) - 403 elif isinstance(expression, exp.Property): - 404 sql = self.property_sql(expression) - 405 else: - 406 raise ValueError(f"Unsupported expression type {expression.__class__.__name__}") - 407 else: - 408 raise ValueError(f"Expected an Expression. Received {type(expression)}: {expression}") - 409 - 410 return self.maybe_comment(sql, expression) if self._comments and comment else sql - 411 - 412 def uncache_sql(self, expression: exp.Uncache) -> str: - 413 table = self.sql(expression, "this") - 414 exists_sql = " IF EXISTS" if expression.args.get("exists") else "" - 415 return f"UNCACHE TABLE{exists_sql} {table}" - 416 - 417 def cache_sql(self, expression: exp.Cache) -> str: - 418 lazy = " LAZY" if expression.args.get("lazy") else "" + 390 if isinstance(expression, str): + 391 return expression + 392 + 393 if key: + 394 return self.sql(expression.args.get(key)) + 395 + 396 transform = self.TRANSFORMS.get(expression.__class__) + 397 + 398 if callable(transform): + 399 sql = transform(self, expression) + 400 elif transform: + 401 sql = transform + 402 elif isinstance(expression, exp.Expression): + 403 exp_handler_name = f"{expression.key}_sql" + 404 + 405 if hasattr(self, exp_handler_name): + 406 sql = getattr(self, exp_handler_name)(expression) + 407 elif isinstance(expression, exp.Func): + 408 sql = self.function_fallback_sql(expression) + 409 elif isinstance(expression, exp.Property): + 410 sql = self.property_sql(expression) + 411 else: + 412 raise ValueError(f"Unsupported expression type {expression.__class__.__name__}") + 413 else: + 414 raise ValueError(f"Expected an Expression. Received {type(expression)}: {expression}") + 415 + 416 return self.maybe_comment(sql, expression) if self._comments and comment else sql + 417 + 418 def uncache_sql(self, expression: exp.Uncache) -> str: 419 table = self.sql(expression, "this") - 420 options = expression.args.get("options") - 421 options = f" OPTIONS({self.sql(options[0])} = {self.sql(options[1])})" if options else "" - 422 sql = self.sql(expression, "expression") - 423 sql = f" AS{self.sep()}{sql}" if sql else "" - 424 sql = f"CACHE{lazy} TABLE {table}{options}{sql}" - 425 return self.prepend_ctes(expression, sql) - 426 - 427 def characterset_sql(self, expression: exp.CharacterSet) -> str: - 428 if isinstance(expression.parent, exp.Cast): - 429 return f"CHAR CHARACTER SET {self.sql(expression, 'this')}" - 430 default = "DEFAULT " if expression.args.get("default") else "" - 431 return f"{default}CHARACTER SET={self.sql(expression, 'this')}" + 420 exists_sql = " IF EXISTS" if expression.args.get("exists") else "" + 421 return f"UNCACHE TABLE{exists_sql} {table}" + 422 + 423 def cache_sql(self, expression: exp.Cache) -> str: + 424 lazy = " LAZY" if expression.args.get("lazy") else "" + 425 table = self.sql(expression, "this") + 426 options = expression.args.get("options") + 427 options = f" OPTIONS({self.sql(options[0])} = {self.sql(options[1])})" if options else "" + 428 sql = self.sql(expression, "expression") + 429 sql = f" AS{self.sep()}{sql}" if sql else "" + 430 sql = f"CACHE{lazy} TABLE {table}{options}{sql}" + 431 return self.prepend_ctes(expression, sql) 432 - 433 def column_sql(self, expression: exp.Column) -> str: - 434 return ".".join( - 435 self.sql(part) - 436 for part in ( - 437 expression.args.get("catalog"), - 438 expression.args.get("db"), - 439 expression.args.get("table"), - 440 expression.args.get("this"), - 441 ) - 442 if part - 443 ) - 444 - 445 def columndef_sql(self, expression: exp.ColumnDef) -> str: - 446 column = self.sql(expression, "this") - 447 kind = self.sql(expression, "kind") - 448 constraints = self.expressions(expression, key="constraints", sep=" ", flat=True) - 449 exists = "IF NOT EXISTS " if expression.args.get("exists") else "" - 450 kind = f" {kind}" if kind else "" - 451 constraints = f" {constraints}" if constraints else "" - 452 - 453 return f"{exists}{column}{kind}{constraints}" - 454 - 455 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: - 456 this = self.sql(expression, "this") - 457 kind_sql = self.sql(expression, "kind") - 458 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql - 459 - 460 def autoincrementcolumnconstraint_sql(self, _) -> str: - 461 return self.token_sql(TokenType.AUTO_INCREMENT) - 462 - 463 def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str: - 464 if isinstance(expression.this, list): - 465 this = self.wrap(self.expressions(expression, key="this", flat=True)) - 466 else: - 467 this = self.sql(expression, "this") + 433 def characterset_sql(self, expression: exp.CharacterSet) -> str: + 434 if isinstance(expression.parent, exp.Cast): + 435 return f"CHAR CHARACTER SET {self.sql(expression, 'this')}" + 436 default = "DEFAULT " if expression.args.get("default") else "" + 437 return f"{default}CHARACTER SET={self.sql(expression, 'this')}" + 438 + 439 def column_sql(self, expression: exp.Column) -> str: + 440 return ".".join( + 441 self.sql(part) + 442 for part in ( + 443 expression.args.get("catalog"), + 444 expression.args.get("db"), + 445 expression.args.get("table"), + 446 expression.args.get("this"), + 447 ) + 448 if part + 449 ) + 450 + 451 def columndef_sql(self, expression: exp.ColumnDef) -> str: + 452 column = self.sql(expression, "this") + 453 kind = self.sql(expression, "kind") + 454 constraints = self.expressions(expression, key="constraints", sep=" ", flat=True) + 455 exists = "IF NOT EXISTS " if expression.args.get("exists") else "" + 456 kind = f" {kind}" if kind else "" + 457 constraints = f" {constraints}" if constraints else "" + 458 + 459 return f"{exists}{column}{kind}{constraints}" + 460 + 461 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: + 462 this = self.sql(expression, "this") + 463 kind_sql = self.sql(expression, "kind") + 464 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql + 465 + 466 def autoincrementcolumnconstraint_sql(self, _) -> str: + 467 return self.token_sql(TokenType.AUTO_INCREMENT) 468 - 469 return f"COMPRESS {this}" - 470 - 471 def generatedasidentitycolumnconstraint_sql( - 472 self, expression: exp.GeneratedAsIdentityColumnConstraint - 473 ) -> str: - 474 this = "" - 475 if expression.this is not None: - 476 this = " ALWAYS " if expression.this else " BY DEFAULT " - 477 start = expression.args.get("start") - 478 start = f"START WITH {start}" if start else "" - 479 increment = expression.args.get("increment") - 480 increment = f" INCREMENT BY {increment}" if increment else "" - 481 minvalue = expression.args.get("minvalue") - 482 minvalue = f" MINVALUE {minvalue}" if minvalue else "" - 483 maxvalue = expression.args.get("maxvalue") - 484 maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else "" - 485 cycle = expression.args.get("cycle") - 486 cycle_sql = "" - 487 if cycle is not None: - 488 cycle_sql = f"{' NO' if not cycle else ''} CYCLE" - 489 cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql - 490 sequence_opts = "" - 491 if start or increment or cycle_sql: - 492 sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}" - 493 sequence_opts = f" ({sequence_opts.strip()})" - 494 return f"GENERATED{this}AS IDENTITY{sequence_opts}" - 495 - 496 def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str: - 497 return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL" - 498 - 499 def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str: - 500 desc = expression.args.get("desc") - 501 if desc is not None: - 502 return f"PRIMARY KEY{' DESC' if desc else ' ASC'}" - 503 return f"PRIMARY KEY" + 469 def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str: + 470 if isinstance(expression.this, list): + 471 this = self.wrap(self.expressions(expression, key="this", flat=True)) + 472 else: + 473 this = self.sql(expression, "this") + 474 + 475 return f"COMPRESS {this}" + 476 + 477 def generatedasidentitycolumnconstraint_sql( + 478 self, expression: exp.GeneratedAsIdentityColumnConstraint + 479 ) -> str: + 480 this = "" + 481 if expression.this is not None: + 482 this = " ALWAYS " if expression.this else " BY DEFAULT " + 483 start = expression.args.get("start") + 484 start = f"START WITH {start}" if start else "" + 485 increment = expression.args.get("increment") + 486 increment = f" INCREMENT BY {increment}" if increment else "" + 487 minvalue = expression.args.get("minvalue") + 488 minvalue = f" MINVALUE {minvalue}" if minvalue else "" + 489 maxvalue = expression.args.get("maxvalue") + 490 maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else "" + 491 cycle = expression.args.get("cycle") + 492 cycle_sql = "" + 493 if cycle is not None: + 494 cycle_sql = f"{' NO' if not cycle else ''} CYCLE" + 495 cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql + 496 sequence_opts = "" + 497 if start or increment or cycle_sql: + 498 sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}" + 499 sequence_opts = f" ({sequence_opts.strip()})" + 500 return f"GENERATED{this}AS IDENTITY{sequence_opts}" + 501 + 502 def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str: + 503 return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL" 504 - 505 def uniquecolumnconstraint_sql(self, _) -> str: - 506 return "UNIQUE" - 507 - 508 def create_sql(self, expression: exp.Create) -> str: - 509 kind = self.sql(expression, "kind").upper() - 510 properties = expression.args.get("properties") - 511 properties_exp = expression.copy() - 512 properties_locs = self.locate_properties(properties) if properties else {} - 513 if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get( - 514 exp.Properties.Location.POST_WITH - 515 ): - 516 properties_exp.set( - 517 "properties", - 518 exp.Properties( - 519 expressions=[ - 520 *properties_locs[exp.Properties.Location.POST_SCHEMA], - 521 *properties_locs[exp.Properties.Location.POST_WITH], - 522 ] - 523 ), - 524 ) - 525 if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME): - 526 this_name = self.sql(expression.this, "this") - 527 this_properties = self.properties( - 528 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]), - 529 wrapped=False, + 505 def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str: + 506 desc = expression.args.get("desc") + 507 if desc is not None: + 508 return f"PRIMARY KEY{' DESC' if desc else ' ASC'}" + 509 return f"PRIMARY KEY" + 510 + 511 def uniquecolumnconstraint_sql(self, _) -> str: + 512 return "UNIQUE" + 513 + 514 def create_sql(self, expression: exp.Create) -> str: + 515 kind = self.sql(expression, "kind").upper() + 516 properties = expression.args.get("properties") + 517 properties_exp = expression.copy() + 518 properties_locs = self.locate_properties(properties) if properties else {} + 519 if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get( + 520 exp.Properties.Location.POST_WITH + 521 ): + 522 properties_exp.set( + 523 "properties", + 524 exp.Properties( + 525 expressions=[ + 526 *properties_locs[exp.Properties.Location.POST_SCHEMA], + 527 *properties_locs[exp.Properties.Location.POST_WITH], + 528 ] + 529 ), 530 ) - 531 this_schema = f"({self.expressions(expression.this)})" - 532 this = f"{this_name}, {this_properties} {this_schema}" - 533 properties_sql = "" - 534 else: - 535 this = self.sql(expression, "this") - 536 properties_sql = self.sql(properties_exp, "properties") - 537 begin = " BEGIN" if expression.args.get("begin") else "" - 538 expression_sql = self.sql(expression, "expression") - 539 if expression_sql: - 540 expression_sql = f"{begin}{self.sep()}{expression_sql}" - 541 - 542 if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return): - 543 if properties_locs.get(exp.Properties.Location.POST_ALIAS): - 544 postalias_props_sql = self.properties( - 545 exp.Properties( - 546 expressions=properties_locs[exp.Properties.Location.POST_ALIAS] - 547 ), - 548 wrapped=False, - 549 ) - 550 expression_sql = f" AS {postalias_props_sql}{expression_sql}" - 551 else: - 552 expression_sql = f" AS{expression_sql}" - 553 - 554 postindex_props_sql = "" - 555 if properties_locs.get(exp.Properties.Location.POST_INDEX): - 556 postindex_props_sql = self.properties( - 557 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]), - 558 wrapped=False, - 559 prefix=" ", - 560 ) - 561 - 562 indexes = expression.args.get("indexes") - 563 if indexes: - 564 indexes_sql: t.List[str] = [] - 565 for index in indexes: - 566 ind_unique = " UNIQUE" if index.args.get("unique") else "" - 567 ind_primary = " PRIMARY" if index.args.get("primary") else "" - 568 ind_amp = " AMP" if index.args.get("amp") else "" - 569 ind_name = f" {index.name}" if index.name else "" - 570 ind_columns = ( - 571 f' ({self.expressions(index, key="columns", flat=True)})' - 572 if index.args.get("columns") - 573 else "" - 574 ) - 575 ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}" - 576 - 577 if indexes_sql: - 578 indexes_sql.append(ind_sql) - 579 else: - 580 indexes_sql.append( - 581 f"{ind_sql}{postindex_props_sql}" - 582 if index.args.get("primary") - 583 else f"{postindex_props_sql}{ind_sql}" - 584 ) - 585 - 586 index_sql = "".join(indexes_sql) - 587 else: - 588 index_sql = postindex_props_sql - 589 - 590 replace = " OR REPLACE" if expression.args.get("replace") else "" - 591 unique = " UNIQUE" if expression.args.get("unique") else "" - 592 volatile = " VOLATILE" if expression.args.get("volatile") else "" - 593 - 594 postcreate_props_sql = "" - 595 if properties_locs.get(exp.Properties.Location.POST_CREATE): - 596 postcreate_props_sql = self.properties( - 597 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]), - 598 sep=" ", - 599 prefix=" ", - 600 wrapped=False, - 601 ) - 602 - 603 modifiers = "".join((replace, unique, volatile, postcreate_props_sql)) - 604 - 605 postexpression_props_sql = "" - 606 if properties_locs.get(exp.Properties.Location.POST_EXPRESSION): - 607 postexpression_props_sql = self.properties( - 608 exp.Properties( - 609 expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION] - 610 ), - 611 sep=" ", - 612 prefix=" ", - 613 wrapped=False, - 614 ) - 615 - 616 exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else "" - 617 no_schema_binding = ( - 618 " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else "" - 619 ) - 620 - 621 expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}" - 622 return self.prepend_ctes(expression, expression_sql) - 623 - 624 def describe_sql(self, expression: exp.Describe) -> str: - 625 return f"DESCRIBE {self.sql(expression, 'this')}" + 531 if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME): + 532 this_name = self.sql(expression.this, "this") + 533 this_properties = self.properties( + 534 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]), + 535 wrapped=False, + 536 ) + 537 this_schema = f"({self.expressions(expression.this)})" + 538 this = f"{this_name}, {this_properties} {this_schema}" + 539 properties_sql = "" + 540 else: + 541 this = self.sql(expression, "this") + 542 properties_sql = self.sql(properties_exp, "properties") + 543 begin = " BEGIN" if expression.args.get("begin") else "" + 544 expression_sql = self.sql(expression, "expression") + 545 if expression_sql: + 546 expression_sql = f"{begin}{self.sep()}{expression_sql}" + 547 + 548 if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return): + 549 if properties_locs.get(exp.Properties.Location.POST_ALIAS): + 550 postalias_props_sql = self.properties( + 551 exp.Properties( + 552 expressions=properties_locs[exp.Properties.Location.POST_ALIAS] + 553 ), + 554 wrapped=False, + 555 ) + 556 expression_sql = f" AS {postalias_props_sql}{expression_sql}" + 557 else: + 558 expression_sql = f" AS{expression_sql}" + 559 + 560 postindex_props_sql = "" + 561 if properties_locs.get(exp.Properties.Location.POST_INDEX): + 562 postindex_props_sql = self.properties( + 563 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]), + 564 wrapped=False, + 565 prefix=" ", + 566 ) + 567 + 568 indexes = expression.args.get("indexes") + 569 if indexes: + 570 indexes_sql: t.List[str] = [] + 571 for index in indexes: + 572 ind_unique = " UNIQUE" if index.args.get("unique") else "" + 573 ind_primary = " PRIMARY" if index.args.get("primary") else "" + 574 ind_amp = " AMP" if index.args.get("amp") else "" + 575 ind_name = f" {index.name}" if index.name else "" + 576 ind_columns = ( + 577 f' ({self.expressions(index, key="columns", flat=True)})' + 578 if index.args.get("columns") + 579 else "" + 580 ) + 581 ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}" + 582 + 583 if indexes_sql: + 584 indexes_sql.append(ind_sql) + 585 else: + 586 indexes_sql.append( + 587 f"{ind_sql}{postindex_props_sql}" + 588 if index.args.get("primary") + 589 else f"{postindex_props_sql}{ind_sql}" + 590 ) + 591 + 592 index_sql = "".join(indexes_sql) + 593 else: + 594 index_sql = postindex_props_sql + 595 + 596 replace = " OR REPLACE" if expression.args.get("replace") else "" + 597 unique = " UNIQUE" if expression.args.get("unique") else "" + 598 volatile = " VOLATILE" if expression.args.get("volatile") else "" + 599 + 600 postcreate_props_sql = "" + 601 if properties_locs.get(exp.Properties.Location.POST_CREATE): + 602 postcreate_props_sql = self.properties( + 603 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]), + 604 sep=" ", + 605 prefix=" ", + 606 wrapped=False, + 607 ) + 608 + 609 modifiers = "".join((replace, unique, volatile, postcreate_props_sql)) + 610 + 611 postexpression_props_sql = "" + 612 if properties_locs.get(exp.Properties.Location.POST_EXPRESSION): + 613 postexpression_props_sql = self.properties( + 614 exp.Properties( + 615 expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION] + 616 ), + 617 sep=" ", + 618 prefix=" ", + 619 wrapped=False, + 620 ) + 621 + 622 exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else "" + 623 no_schema_binding = ( + 624 " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else "" + 625 ) 626 - 627 def prepend_ctes(self, expression: exp.Expression, sql: str) -> str: - 628 with_ = self.sql(expression, "with") - 629 if with_: - 630 sql = f"{with_}{self.sep()}{sql}" - 631 return sql + 627 expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}" + 628 return self.prepend_ctes(expression, expression_sql) + 629 + 630 def describe_sql(self, expression: exp.Describe) -> str: + 631 return f"DESCRIBE {self.sql(expression, 'this')}" 632 - 633 def with_sql(self, expression: exp.With) -> str: - 634 sql = self.expressions(expression, flat=True) - 635 recursive = "RECURSIVE " if expression.args.get("recursive") else "" - 636 - 637 return f"WITH {recursive}{sql}" + 633 def prepend_ctes(self, expression: exp.Expression, sql: str) -> str: + 634 with_ = self.sql(expression, "with") + 635 if with_: + 636 sql = f"{with_}{self.sep()}{sql}" + 637 return sql 638 - 639 def cte_sql(self, expression: exp.CTE) -> str: - 640 alias = self.sql(expression, "alias") - 641 return f"{alias} AS {self.wrap(expression)}" + 639 def with_sql(self, expression: exp.With) -> str: + 640 sql = self.expressions(expression, flat=True) + 641 recursive = "RECURSIVE " if expression.args.get("recursive") else "" 642 - 643 def tablealias_sql(self, expression: exp.TableAlias) -> str: - 644 alias = self.sql(expression, "this") - 645 columns = self.expressions(expression, key="columns", flat=True) - 646 columns = f"({columns})" if columns else "" - 647 return f"{alias}{columns}" + 643 return f"WITH {recursive}{sql}" + 644 + 645 def cte_sql(self, expression: exp.CTE) -> str: + 646 alias = self.sql(expression, "alias") + 647 return f"{alias} AS {self.wrap(expression)}" 648 - 649 def bitstring_sql(self, expression: exp.BitString) -> str: - 650 return self.sql(expression, "this") - 651 - 652 def hexstring_sql(self, expression: exp.HexString) -> str: - 653 return self.sql(expression, "this") + 649 def tablealias_sql(self, expression: exp.TableAlias) -> str: + 650 alias = self.sql(expression, "this") + 651 columns = self.expressions(expression, key="columns", flat=True) + 652 columns = f"({columns})" if columns else "" + 653 return f"{alias}{columns}" 654 - 655 def datatype_sql(self, expression: exp.DataType) -> str: - 656 type_value = expression.this - 657 type_sql = self.TYPE_MAPPING.get(type_value, type_value.value) - 658 nested = "" - 659 interior = self.expressions(expression, flat=True) - 660 values = "" - 661 if interior: - 662 if expression.args.get("nested"): - 663 nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}" - 664 if expression.args.get("values") is not None: - 665 delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")") - 666 values = ( - 667 f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}" - 668 ) - 669 else: - 670 nested = f"({interior})" - 671 - 672 return f"{type_sql}{nested}{values}" - 673 - 674 def directory_sql(self, expression: exp.Directory) -> str: - 675 local = "LOCAL " if expression.args.get("local") else "" - 676 row_format = self.sql(expression, "row_format") - 677 row_format = f" {row_format}" if row_format else "" - 678 return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}" + 655 def bitstring_sql(self, expression: exp.BitString) -> str: + 656 return self.sql(expression, "this") + 657 + 658 def hexstring_sql(self, expression: exp.HexString) -> str: + 659 return self.sql(expression, "this") + 660 + 661 def datatype_sql(self, expression: exp.DataType) -> str: + 662 type_value = expression.this + 663 type_sql = self.TYPE_MAPPING.get(type_value, type_value.value) + 664 nested = "" + 665 interior = self.expressions(expression, flat=True) + 666 values = "" + 667 if interior: + 668 if expression.args.get("nested"): + 669 nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}" + 670 if expression.args.get("values") is not None: + 671 delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")") + 672 values = ( + 673 f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}" + 674 ) + 675 else: + 676 nested = f"({interior})" + 677 + 678 return f"{type_sql}{nested}{values}" 679 - 680 def delete_sql(self, expression: exp.Delete) -> str: - 681 this = self.sql(expression, "this") - 682 this = f" FROM {this}" if this else "" - 683 using_sql = ( - 684 f" USING {self.expressions(expression, 'using', sep=', USING ')}" - 685 if expression.args.get("using") - 686 else "" - 687 ) - 688 where_sql = self.sql(expression, "where") - 689 sql = f"DELETE{this}{using_sql}{where_sql}" - 690 return self.prepend_ctes(expression, sql) - 691 - 692 def drop_sql(self, expression: exp.Drop) -> str: - 693 this = self.sql(expression, "this") - 694 kind = expression.args["kind"] - 695 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " - 696 temporary = " TEMPORARY" if expression.args.get("temporary") else "" - 697 materialized = " MATERIALIZED" if expression.args.get("materialized") else "" - 698 cascade = " CASCADE" if expression.args.get("cascade") else "" - 699 return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}" - 700 - 701 def except_sql(self, expression: exp.Except) -> str: - 702 return self.prepend_ctes( - 703 expression, - 704 self.set_operation(expression, self.except_op(expression)), - 705 ) - 706 - 707 def except_op(self, expression: exp.Except) -> str: - 708 return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}" - 709 - 710 def fetch_sql(self, expression: exp.Fetch) -> str: - 711 direction = expression.args.get("direction") - 712 direction = f" {direction.upper()}" if direction else "" - 713 count = expression.args.get("count") - 714 count = f" {count}" if count else "" - 715 return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY" + 680 def directory_sql(self, expression: exp.Directory) -> str: + 681 local = "LOCAL " if expression.args.get("local") else "" + 682 row_format = self.sql(expression, "row_format") + 683 row_format = f" {row_format}" if row_format else "" + 684 return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}" + 685 + 686 def delete_sql(self, expression: exp.Delete) -> str: + 687 this = self.sql(expression, "this") + 688 this = f" FROM {this}" if this else "" + 689 using_sql = ( + 690 f" USING {self.expressions(expression, 'using', sep=', USING ')}" + 691 if expression.args.get("using") + 692 else "" + 693 ) + 694 where_sql = self.sql(expression, "where") + 695 returning = self.sql(expression, "returning") + 696 sql = f"DELETE{this}{using_sql}{where_sql}{returning}" + 697 return self.prepend_ctes(expression, sql) + 698 + 699 def drop_sql(self, expression: exp.Drop) -> str: + 700 this = self.sql(expression, "this") + 701 kind = expression.args["kind"] + 702 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " + 703 temporary = " TEMPORARY" if expression.args.get("temporary") else "" + 704 materialized = " MATERIALIZED" if expression.args.get("materialized") else "" + 705 cascade = " CASCADE" if expression.args.get("cascade") else "" + 706 return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}" + 707 + 708 def except_sql(self, expression: exp.Except) -> str: + 709 return self.prepend_ctes( + 710 expression, + 711 self.set_operation(expression, self.except_op(expression)), + 712 ) + 713 + 714 def except_op(self, expression: exp.Except) -> str: + 715 return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}" 716 - 717 def filter_sql(self, expression: exp.Filter) -> str: - 718 this = self.sql(expression, "this") - 719 where = self.sql(expression, "expression")[1:] # where has a leading space - 720 return f"{this} FILTER({where})" - 721 - 722 def hint_sql(self, expression: exp.Hint) -> str: - 723 if self.sql(expression, "this"): - 724 self.unsupported("Hints are not supported") - 725 return "" - 726 - 727 def index_sql(self, expression: exp.Index) -> str: - 728 this = self.sql(expression, "this") - 729 table = self.sql(expression, "table") - 730 columns = self.sql(expression, "columns") - 731 return f"{this} ON {table} {columns}" - 732 - 733 def identifier_sql(self, expression: exp.Identifier) -> str: - 734 text = expression.name - 735 text = text.lower() if self.normalize else text - 736 text = text.replace(self.identifier_end, self._escaped_identifier_end) - 737 if expression.args.get("quoted") or self.identify: - 738 text = f"{self.identifier_start}{text}{self.identifier_end}" - 739 return text - 740 - 741 def national_sql(self, expression: exp.National) -> str: - 742 return f"N{self.sql(expression, 'this')}" - 743 - 744 def partition_sql(self, expression: exp.Partition) -> str: - 745 return f"PARTITION({self.expressions(expression)})" - 746 - 747 def properties_sql(self, expression: exp.Properties) -> str: - 748 root_properties = [] - 749 with_properties = [] + 717 def fetch_sql(self, expression: exp.Fetch) -> str: + 718 direction = expression.args.get("direction") + 719 direction = f" {direction.upper()}" if direction else "" + 720 count = expression.args.get("count") + 721 count = f" {count}" if count else "" + 722 return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY" + 723 + 724 def filter_sql(self, expression: exp.Filter) -> str: + 725 this = self.sql(expression, "this") + 726 where = self.sql(expression, "expression")[1:] # where has a leading space + 727 return f"{this} FILTER({where})" + 728 + 729 def hint_sql(self, expression: exp.Hint) -> str: + 730 if self.sql(expression, "this"): + 731 self.unsupported("Hints are not supported") + 732 return "" + 733 + 734 def index_sql(self, expression: exp.Index) -> str: + 735 this = self.sql(expression, "this") + 736 table = self.sql(expression, "table") + 737 columns = self.sql(expression, "columns") + 738 return f"{this} ON {table} {columns}" + 739 + 740 def identifier_sql(self, expression: exp.Identifier) -> str: + 741 text = expression.name + 742 text = text.lower() if self.normalize else text + 743 text = text.replace(self.identifier_end, self._escaped_identifier_end) + 744 if expression.args.get("quoted") or self.identify: + 745 text = f"{self.identifier_start}{text}{self.identifier_end}" + 746 return text + 747 + 748 def national_sql(self, expression: exp.National) -> str: + 749 return f"N{self.sql(expression, 'this')}" 750 - 751 for p in expression.expressions: - 752 p_loc = self.PROPERTIES_LOCATION[p.__class__] - 753 if p_loc == exp.Properties.Location.POST_WITH: - 754 with_properties.append(p) - 755 elif p_loc == exp.Properties.Location.POST_SCHEMA: - 756 root_properties.append(p) + 751 def partition_sql(self, expression: exp.Partition) -> str: + 752 return f"PARTITION({self.expressions(expression)})" + 753 + 754 def properties_sql(self, expression: exp.Properties) -> str: + 755 root_properties = [] + 756 with_properties = [] 757 - 758 return self.root_properties( - 759 exp.Properties(expressions=root_properties) - 760 ) + self.with_properties(exp.Properties(expressions=with_properties)) - 761 - 762 def root_properties(self, properties: exp.Properties) -> str: - 763 if properties.expressions: - 764 return self.sep() + self.expressions(properties, indent=False, sep=" ") - 765 return "" - 766 - 767 def properties( - 768 self, - 769 properties: exp.Properties, - 770 prefix: str = "", - 771 sep: str = ", ", - 772 suffix: str = "", - 773 wrapped: bool = True, - 774 ) -> str: - 775 if properties.expressions: - 776 expressions = self.expressions(properties, sep=sep, indent=False) - 777 expressions = self.wrap(expressions) if wrapped else expressions - 778 return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}" - 779 return "" - 780 - 781 def with_properties(self, properties: exp.Properties) -> str: - 782 return self.properties(properties, prefix=self.seg("WITH")) - 783 - 784 def locate_properties( - 785 self, properties: exp.Properties - 786 ) -> t.Dict[exp.Properties.Location, list[exp.Property]]: - 787 properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = { - 788 key: [] for key in exp.Properties.Location - 789 } + 758 for p in expression.expressions: + 759 p_loc = self.PROPERTIES_LOCATION[p.__class__] + 760 if p_loc == exp.Properties.Location.POST_WITH: + 761 with_properties.append(p) + 762 elif p_loc == exp.Properties.Location.POST_SCHEMA: + 763 root_properties.append(p) + 764 + 765 return self.root_properties( + 766 exp.Properties(expressions=root_properties) + 767 ) + self.with_properties(exp.Properties(expressions=with_properties)) + 768 + 769 def root_properties(self, properties: exp.Properties) -> str: + 770 if properties.expressions: + 771 return self.sep() + self.expressions(properties, indent=False, sep=" ") + 772 return "" + 773 + 774 def properties( + 775 self, + 776 properties: exp.Properties, + 777 prefix: str = "", + 778 sep: str = ", ", + 779 suffix: str = "", + 780 wrapped: bool = True, + 781 ) -> str: + 782 if properties.expressions: + 783 expressions = self.expressions(properties, sep=sep, indent=False) + 784 expressions = self.wrap(expressions) if wrapped else expressions + 785 return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}" + 786 return "" + 787 + 788 def with_properties(self, properties: exp.Properties) -> str: + 789 return self.properties(properties, prefix=self.seg("WITH")) 790 - 791 for p in properties.expressions: - 792 p_loc = self.PROPERTIES_LOCATION[p.__class__] - 793 if p_loc == exp.Properties.Location.POST_NAME: - 794 properties_locs[exp.Properties.Location.POST_NAME].append(p) - 795 elif p_loc == exp.Properties.Location.POST_INDEX: - 796 properties_locs[exp.Properties.Location.POST_INDEX].append(p) - 797 elif p_loc == exp.Properties.Location.POST_SCHEMA: - 798 properties_locs[exp.Properties.Location.POST_SCHEMA].append(p) - 799 elif p_loc == exp.Properties.Location.POST_WITH: - 800 properties_locs[exp.Properties.Location.POST_WITH].append(p) - 801 elif p_loc == exp.Properties.Location.POST_CREATE: - 802 properties_locs[exp.Properties.Location.POST_CREATE].append(p) - 803 elif p_loc == exp.Properties.Location.POST_ALIAS: - 804 properties_locs[exp.Properties.Location.POST_ALIAS].append(p) - 805 elif p_loc == exp.Properties.Location.POST_EXPRESSION: - 806 properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p) - 807 elif p_loc == exp.Properties.Location.UNSUPPORTED: - 808 self.unsupported(f"Unsupported property {p.key}") - 809 - 810 return properties_locs - 811 - 812 def property_sql(self, expression: exp.Property) -> str: - 813 property_cls = expression.__class__ - 814 if property_cls == exp.Property: - 815 return f"{expression.name}={self.sql(expression, 'value')}" + 791 def locate_properties( + 792 self, properties: exp.Properties + 793 ) -> t.Dict[exp.Properties.Location, list[exp.Property]]: + 794 properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = { + 795 key: [] for key in exp.Properties.Location + 796 } + 797 + 798 for p in properties.expressions: + 799 p_loc = self.PROPERTIES_LOCATION[p.__class__] + 800 if p_loc == exp.Properties.Location.POST_NAME: + 801 properties_locs[exp.Properties.Location.POST_NAME].append(p) + 802 elif p_loc == exp.Properties.Location.POST_INDEX: + 803 properties_locs[exp.Properties.Location.POST_INDEX].append(p) + 804 elif p_loc == exp.Properties.Location.POST_SCHEMA: + 805 properties_locs[exp.Properties.Location.POST_SCHEMA].append(p) + 806 elif p_loc == exp.Properties.Location.POST_WITH: + 807 properties_locs[exp.Properties.Location.POST_WITH].append(p) + 808 elif p_loc == exp.Properties.Location.POST_CREATE: + 809 properties_locs[exp.Properties.Location.POST_CREATE].append(p) + 810 elif p_loc == exp.Properties.Location.POST_ALIAS: + 811 properties_locs[exp.Properties.Location.POST_ALIAS].append(p) + 812 elif p_loc == exp.Properties.Location.POST_EXPRESSION: + 813 properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p) + 814 elif p_loc == exp.Properties.Location.UNSUPPORTED: + 815 self.unsupported(f"Unsupported property {p.key}") 816 - 817 property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls) - 818 if not property_name: - 819 self.unsupported(f"Unsupported property {expression.key}") - 820 - 821 return f"{property_name}={self.sql(expression, 'this')}" - 822 - 823 def likeproperty_sql(self, expression: exp.LikeProperty) -> str: - 824 options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions) - 825 options = f" {options}" if options else "" - 826 return f"LIKE {self.sql(expression, 'this')}{options}" + 817 return properties_locs + 818 + 819 def property_sql(self, expression: exp.Property) -> str: + 820 property_cls = expression.__class__ + 821 if property_cls == exp.Property: + 822 return f"{expression.name}={self.sql(expression, 'value')}" + 823 + 824 property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls) + 825 if not property_name: + 826 self.unsupported(f"Unsupported property {expression.key}") 827 - 828 def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str: - 829 no = "NO " if expression.args.get("no") else "" - 830 protection = " PROTECTION" if expression.args.get("protection") else "" - 831 return f"{no}FALLBACK{protection}" - 832 - 833 def journalproperty_sql(self, expression: exp.JournalProperty) -> str: - 834 no = "NO " if expression.args.get("no") else "" - 835 dual = "DUAL " if expression.args.get("dual") else "" - 836 before = "BEFORE " if expression.args.get("before") else "" - 837 return f"{no}{dual}{before}JOURNAL" - 838 - 839 def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str: - 840 freespace = self.sql(expression, "this") - 841 percent = " PERCENT" if expression.args.get("percent") else "" - 842 return f"FREESPACE={freespace}{percent}" - 843 - 844 def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str: - 845 no = "NO " if expression.args.get("no") else "" - 846 dual = "DUAL " if expression.args.get("dual") else "" - 847 local = "" - 848 if expression.args.get("local") is not None: - 849 local = "LOCAL " if expression.args.get("local") else "NOT LOCAL " - 850 return f"{no}{dual}{local}AFTER JOURNAL" - 851 - 852 def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str: - 853 if expression.args.get("default"): - 854 property = "DEFAULT" - 855 elif expression.args.get("on"): - 856 property = "ON" - 857 else: - 858 property = "OFF" - 859 return f"CHECKSUM={property}" - 860 - 861 def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str: - 862 if expression.args.get("no"): - 863 return "NO MERGEBLOCKRATIO" - 864 if expression.args.get("default"): - 865 return "DEFAULT MERGEBLOCKRATIO" - 866 - 867 percent = " PERCENT" if expression.args.get("percent") else "" - 868 return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}" - 869 - 870 def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str: - 871 default = expression.args.get("default") - 872 min = expression.args.get("min") - 873 if default is not None or min is not None: - 874 if default: - 875 property = "DEFAULT" - 876 elif min: - 877 property = "MINIMUM" - 878 else: - 879 property = "MAXIMUM" - 880 return f"{property} DATABLOCKSIZE" - 881 else: - 882 units = expression.args.get("units") - 883 units = f" {units}" if units else "" - 884 return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}" - 885 - 886 def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str: - 887 autotemp = expression.args.get("autotemp") - 888 always = expression.args.get("always") - 889 default = expression.args.get("default") - 890 manual = expression.args.get("manual") - 891 never = expression.args.get("never") + 828 return f"{property_name}={self.sql(expression, 'this')}" + 829 + 830 def likeproperty_sql(self, expression: exp.LikeProperty) -> str: + 831 options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions) + 832 options = f" {options}" if options else "" + 833 return f"LIKE {self.sql(expression, 'this')}{options}" + 834 + 835 def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str: + 836 no = "NO " if expression.args.get("no") else "" + 837 protection = " PROTECTION" if expression.args.get("protection") else "" + 838 return f"{no}FALLBACK{protection}" + 839 + 840 def journalproperty_sql(self, expression: exp.JournalProperty) -> str: + 841 no = "NO " if expression.args.get("no") else "" + 842 dual = "DUAL " if expression.args.get("dual") else "" + 843 before = "BEFORE " if expression.args.get("before") else "" + 844 return f"{no}{dual}{before}JOURNAL" + 845 + 846 def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str: + 847 freespace = self.sql(expression, "this") + 848 percent = " PERCENT" if expression.args.get("percent") else "" + 849 return f"FREESPACE={freespace}{percent}" + 850 + 851 def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str: + 852 no = "NO " if expression.args.get("no") else "" + 853 dual = "DUAL " if expression.args.get("dual") else "" + 854 local = "" + 855 if expression.args.get("local") is not None: + 856 local = "LOCAL " if expression.args.get("local") else "NOT LOCAL " + 857 return f"{no}{dual}{local}AFTER JOURNAL" + 858 + 859 def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str: + 860 if expression.args.get("default"): + 861 property = "DEFAULT" + 862 elif expression.args.get("on"): + 863 property = "ON" + 864 else: + 865 property = "OFF" + 866 return f"CHECKSUM={property}" + 867 + 868 def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str: + 869 if expression.args.get("no"): + 870 return "NO MERGEBLOCKRATIO" + 871 if expression.args.get("default"): + 872 return "DEFAULT MERGEBLOCKRATIO" + 873 + 874 percent = " PERCENT" if expression.args.get("percent") else "" + 875 return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}" + 876 + 877 def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str: + 878 default = expression.args.get("default") + 879 min = expression.args.get("min") + 880 if default is not None or min is not None: + 881 if default: + 882 property = "DEFAULT" + 883 elif min: + 884 property = "MINIMUM" + 885 else: + 886 property = "MAXIMUM" + 887 return f"{property} DATABLOCKSIZE" + 888 else: + 889 units = expression.args.get("units") + 890 units = f" {units}" if units else "" + 891 return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}" 892 - 893 if autotemp is not None: - 894 property = f"AUTOTEMP({self.expressions(autotemp)})" - 895 elif always: - 896 property = "ALWAYS" - 897 elif default: - 898 property = "DEFAULT" - 899 elif manual: - 900 property = "MANUAL" - 901 elif never: - 902 property = "NEVER" - 903 return f"BLOCKCOMPRESSION={property}" - 904 - 905 def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str: - 906 no = expression.args.get("no") - 907 no = " NO" if no else "" - 908 concurrent = expression.args.get("concurrent") - 909 concurrent = " CONCURRENT" if concurrent else "" - 910 - 911 for_ = "" - 912 if expression.args.get("for_all"): - 913 for_ = " FOR ALL" - 914 elif expression.args.get("for_insert"): - 915 for_ = " FOR INSERT" - 916 elif expression.args.get("for_none"): - 917 for_ = " FOR NONE" - 918 return f"WITH{no}{concurrent} ISOLATED LOADING{for_}" - 919 - 920 def lockingproperty_sql(self, expression: exp.LockingProperty) -> str: - 921 kind = expression.args.get("kind") - 922 this: str = f" {this}" if expression.this else "" - 923 for_or_in = expression.args.get("for_or_in") - 924 lock_type = expression.args.get("lock_type") - 925 override = " OVERRIDE" if expression.args.get("override") else "" - 926 return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}" - 927 - 928 def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str: - 929 data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA" - 930 statistics = expression.args.get("statistics") - 931 statistics_sql = "" - 932 if statistics is not None: - 933 statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS" - 934 return f"{data_sql}{statistics_sql}" - 935 - 936 def insert_sql(self, expression: exp.Insert) -> str: - 937 overwrite = expression.args.get("overwrite") - 938 - 939 if isinstance(expression.this, exp.Directory): - 940 this = "OVERWRITE " if overwrite else "INTO " - 941 else: - 942 this = "OVERWRITE TABLE " if overwrite else "INTO " - 943 - 944 alternative = expression.args.get("alternative") - 945 alternative = f" OR {alternative} " if alternative else " " - 946 this = f"{this}{self.sql(expression, 'this')}" - 947 - 948 exists = " IF EXISTS " if expression.args.get("exists") else " " - 949 partition_sql = ( - 950 self.sql(expression, "partition") if expression.args.get("partition") else "" - 951 ) - 952 expression_sql = self.sql(expression, "expression") - 953 sep = self.sep() if partition_sql else "" - 954 sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}" - 955 return self.prepend_ctes(expression, sql) - 956 - 957 def intersect_sql(self, expression: exp.Intersect) -> str: - 958 return self.prepend_ctes( - 959 expression, - 960 self.set_operation(expression, self.intersect_op(expression)), - 961 ) - 962 - 963 def intersect_op(self, expression: exp.Intersect) -> str: - 964 return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}" - 965 - 966 def introducer_sql(self, expression: exp.Introducer) -> str: - 967 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" - 968 - 969 def pseudotype_sql(self, expression: exp.PseudoType) -> str: - 970 return expression.name.upper() - 971 - 972 def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str: - 973 fields = expression.args.get("fields") - 974 fields = f" FIELDS TERMINATED BY {fields}" if fields else "" - 975 escaped = expression.args.get("escaped") - 976 escaped = f" ESCAPED BY {escaped}" if escaped else "" - 977 items = expression.args.get("collection_items") - 978 items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else "" - 979 keys = expression.args.get("map_keys") - 980 keys = f" MAP KEYS TERMINATED BY {keys}" if keys else "" - 981 lines = expression.args.get("lines") - 982 lines = f" LINES TERMINATED BY {lines}" if lines else "" - 983 null = expression.args.get("null") - 984 null = f" NULL DEFINED AS {null}" if null else "" - 985 return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}" - 986 - 987 def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str: - 988 table = ".".join( - 989 part - 990 for part in [ - 991 self.sql(expression, "catalog"), - 992 self.sql(expression, "db"), - 993 self.sql(expression, "this"), - 994 ] - 995 if part - 996 ) + 893 def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str: + 894 autotemp = expression.args.get("autotemp") + 895 always = expression.args.get("always") + 896 default = expression.args.get("default") + 897 manual = expression.args.get("manual") + 898 never = expression.args.get("never") + 899 + 900 if autotemp is not None: + 901 property = f"AUTOTEMP({self.expressions(autotemp)})" + 902 elif always: + 903 property = "ALWAYS" + 904 elif default: + 905 property = "DEFAULT" + 906 elif manual: + 907 property = "MANUAL" + 908 elif never: + 909 property = "NEVER" + 910 return f"BLOCKCOMPRESSION={property}" + 911 + 912 def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str: + 913 no = expression.args.get("no") + 914 no = " NO" if no else "" + 915 concurrent = expression.args.get("concurrent") + 916 concurrent = " CONCURRENT" if concurrent else "" + 917 + 918 for_ = "" + 919 if expression.args.get("for_all"): + 920 for_ = " FOR ALL" + 921 elif expression.args.get("for_insert"): + 922 for_ = " FOR INSERT" + 923 elif expression.args.get("for_none"): + 924 for_ = " FOR NONE" + 925 return f"WITH{no}{concurrent} ISOLATED LOADING{for_}" + 926 + 927 def lockingproperty_sql(self, expression: exp.LockingProperty) -> str: + 928 kind = expression.args.get("kind") + 929 this: str = f" {this}" if expression.this else "" + 930 for_or_in = expression.args.get("for_or_in") + 931 lock_type = expression.args.get("lock_type") + 932 override = " OVERRIDE" if expression.args.get("override") else "" + 933 return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}" + 934 + 935 def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str: + 936 data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA" + 937 statistics = expression.args.get("statistics") + 938 statistics_sql = "" + 939 if statistics is not None: + 940 statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS" + 941 return f"{data_sql}{statistics_sql}" + 942 + 943 def insert_sql(self, expression: exp.Insert) -> str: + 944 overwrite = expression.args.get("overwrite") + 945 + 946 if isinstance(expression.this, exp.Directory): + 947 this = "OVERWRITE " if overwrite else "INTO " + 948 else: + 949 this = "OVERWRITE TABLE " if overwrite else "INTO " + 950 + 951 alternative = expression.args.get("alternative") + 952 alternative = f" OR {alternative} " if alternative else " " + 953 this = f"{this}{self.sql(expression, 'this')}" + 954 + 955 exists = " IF EXISTS " if expression.args.get("exists") else " " + 956 partition_sql = ( + 957 self.sql(expression, "partition") if expression.args.get("partition") else "" + 958 ) + 959 expression_sql = self.sql(expression, "expression") + 960 returning = self.sql(expression, "returning") + 961 sep = self.sep() if partition_sql else "" + 962 sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}" + 963 return self.prepend_ctes(expression, sql) + 964 + 965 def intersect_sql(self, expression: exp.Intersect) -> str: + 966 return self.prepend_ctes( + 967 expression, + 968 self.set_operation(expression, self.intersect_op(expression)), + 969 ) + 970 + 971 def intersect_op(self, expression: exp.Intersect) -> str: + 972 return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}" + 973 + 974 def introducer_sql(self, expression: exp.Introducer) -> str: + 975 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" + 976 + 977 def pseudotype_sql(self, expression: exp.PseudoType) -> str: + 978 return expression.name.upper() + 979 + 980 def returning_sql(self, expression: exp.Returning) -> str: + 981 return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}" + 982 + 983 def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str: + 984 fields = expression.args.get("fields") + 985 fields = f" FIELDS TERMINATED BY {fields}" if fields else "" + 986 escaped = expression.args.get("escaped") + 987 escaped = f" ESCAPED BY {escaped}" if escaped else "" + 988 items = expression.args.get("collection_items") + 989 items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else "" + 990 keys = expression.args.get("map_keys") + 991 keys = f" MAP KEYS TERMINATED BY {keys}" if keys else "" + 992 lines = expression.args.get("lines") + 993 lines = f" LINES TERMINATED BY {lines}" if lines else "" + 994 null = expression.args.get("null") + 995 null = f" NULL DEFINED AS {null}" if null else "" + 996 return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}" 997 - 998 alias = self.sql(expression, "alias") - 999 alias = f"{sep}{alias}" if alias else "" -1000 hints = self.expressions(expression, key="hints", sep=", ", flat=True) -1001 hints = f" WITH ({hints})" if hints else "" -1002 laterals = self.expressions(expression, key="laterals", sep="") -1003 joins = self.expressions(expression, key="joins", sep="") -1004 pivots = self.expressions(expression, key="pivots", sep="") -1005 system_time = expression.args.get("system_time") -1006 system_time = f" {self.sql(expression, 'system_time')}" if system_time else "" -1007 -1008 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" -1009 -1010 def tablesample_sql(self, expression: exp.TableSample) -> str: -1011 if self.alias_post_tablesample and expression.this.alias: -1012 this = self.sql(expression.this, "this") -1013 alias = f" AS {self.sql(expression.this, 'alias')}" -1014 else: -1015 this = self.sql(expression, "this") -1016 alias = "" -1017 method = self.sql(expression, "method") -1018 method = f" {method.upper()} " if method else "" -1019 numerator = self.sql(expression, "bucket_numerator") -1020 denominator = self.sql(expression, "bucket_denominator") -1021 field = self.sql(expression, "bucket_field") -1022 field = f" ON {field}" if field else "" -1023 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" -1024 percent = self.sql(expression, "percent") -1025 percent = f"{percent} PERCENT" if percent else "" -1026 rows = self.sql(expression, "rows") -1027 rows = f"{rows} ROWS" if rows else "" -1028 size = self.sql(expression, "size") -1029 seed = self.sql(expression, "seed") -1030 seed = f" SEED ({seed})" if seed else "" -1031 return f"{this} TABLESAMPLE{method}({bucket}{percent}{rows}{size}){seed}{alias}" -1032 -1033 def pivot_sql(self, expression: exp.Pivot) -> str: -1034 this = self.sql(expression, "this") -1035 alias = self.sql(expression, "alias") -1036 alias = f" AS {alias}" if alias else "" -1037 unpivot = expression.args.get("unpivot") -1038 direction = "UNPIVOT" if unpivot else "PIVOT" -1039 expressions = self.expressions(expression, key="expressions") -1040 field = self.sql(expression, "field") -1041 return f"{this} {direction}({expressions} FOR {field}){alias}" -1042 -1043 def tuple_sql(self, expression: exp.Tuple) -> str: -1044 return f"({self.expressions(expression, flat=True)})" -1045 -1046 def update_sql(self, expression: exp.Update) -> str: -1047 this = self.sql(expression, "this") -1048 set_sql = self.expressions(expression, flat=True) -1049 from_sql = self.sql(expression, "from") -1050 where_sql = self.sql(expression, "where") -1051 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}" -1052 return self.prepend_ctes(expression, sql) -1053 -1054 def values_sql(self, expression: exp.Values) -> str: -1055 args = self.expressions(expression) -1056 alias = self.sql(expression, "alias") -1057 values = f"VALUES{self.seg('')}{args}" -1058 values = ( -1059 f"({values})" -1060 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) -1061 else values -1062 ) -1063 return f"{values} AS {alias}" if alias else values -1064 -1065 def var_sql(self, expression: exp.Var) -> str: -1066 return self.sql(expression, "this") -1067 -1068 def into_sql(self, expression: exp.Into) -> str: -1069 temporary = " TEMPORARY" if expression.args.get("temporary") else "" -1070 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" -1071 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" -1072 -1073 def from_sql(self, expression: exp.From) -> str: -1074 expressions = self.expressions(expression, flat=True) -1075 return f"{self.seg('FROM')} {expressions}" -1076 -1077 def group_sql(self, expression: exp.Group) -> str: -1078 group_by = self.op_expressions("GROUP BY", expression) -1079 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) -1080 grouping_sets = ( -1081 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" -1082 ) -1083 -1084 cube = expression.args.get("cube", []) -1085 if seq_get(cube, 0) is True: -1086 return f"{group_by}{self.seg('WITH CUBE')}" -1087 else: -1088 cube_sql = self.expressions(expression, key="cube", indent=False) -1089 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" -1090 -1091 rollup = expression.args.get("rollup", []) -1092 if seq_get(rollup, 0) is True: -1093 return f"{group_by}{self.seg('WITH ROLLUP')}" -1094 else: -1095 rollup_sql = self.expressions(expression, key="rollup", indent=False) -1096 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" -1097 -1098 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") -1099 -1100 if expression.args.get("expressions") and groupings: -1101 group_by = f"{group_by}," -1102 -1103 return f"{group_by}{groupings}" -1104 -1105 def having_sql(self, expression: exp.Having) -> str: -1106 this = self.indent(self.sql(expression, "this")) -1107 return f"{self.seg('HAVING')}{self.sep()}{this}" -1108 -1109 def join_sql(self, expression: exp.Join) -> str: -1110 op_sql = self.seg( -1111 " ".join( -1112 op -1113 for op in ( -1114 "NATURAL" if expression.args.get("natural") else None, -1115 expression.side, -1116 expression.kind, -1117 "JOIN", -1118 ) -1119 if op -1120 ) -1121 ) -1122 on_sql = self.sql(expression, "on") -1123 using = expression.args.get("using") -1124 -1125 if not on_sql and using: -1126 on_sql = csv(*(self.sql(column) for column in using)) -1127 -1128 if on_sql: -1129 on_sql = self.indent(on_sql, skip_first=True) -1130 space = self.seg(" " * self.pad) if self.pretty else " " -1131 if using: -1132 on_sql = f"{space}USING ({on_sql})" -1133 else: -1134 on_sql = f"{space}ON {on_sql}" -1135 -1136 expression_sql = self.sql(expression, "expression") -1137 this_sql = self.sql(expression, "this") -1138 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" -1139 -1140 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: -1141 args = self.expressions(expression, flat=True) -1142 args = f"({args})" if len(args.split(",")) > 1 else args -1143 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" -1144 -1145 def lateral_sql(self, expression: exp.Lateral) -> str: -1146 this = self.sql(expression, "this") -1147 -1148 if isinstance(expression.this, exp.Subquery): -1149 return f"LATERAL {this}" -1150 -1151 if expression.args.get("view"): -1152 alias = expression.args["alias"] -1153 columns = self.expressions(alias, key="columns", flat=True) -1154 table = f" {alias.name}" if alias.name else "" -1155 columns = f" AS {columns}" if columns else "" -1156 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") -1157 return f"{op_sql}{self.sep()}{this}{table}{columns}" -1158 -1159 alias = self.sql(expression, "alias") -1160 alias = f" AS {alias}" if alias else "" -1161 return f"LATERAL {this}{alias}" -1162 -1163 def limit_sql(self, expression: exp.Limit) -> str: -1164 this = self.sql(expression, "this") -1165 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" -1166 -1167 def offset_sql(self, expression: exp.Offset) -> str: -1168 this = self.sql(expression, "this") -1169 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" -1170 -1171 def lock_sql(self, expression: exp.Lock) -> str: -1172 if self.LOCKING_READS_SUPPORTED: -1173 lock_type = "UPDATE" if expression.args["update"] else "SHARE" -1174 return self.seg(f"FOR {lock_type}") + 998 def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str: + 999 table = ".".join( +1000 part +1001 for part in [ +1002 self.sql(expression, "catalog"), +1003 self.sql(expression, "db"), +1004 self.sql(expression, "this"), +1005 ] +1006 if part +1007 ) +1008 +1009 alias = self.sql(expression, "alias") +1010 alias = f"{sep}{alias}" if alias else "" +1011 hints = self.expressions(expression, key="hints", sep=", ", flat=True) +1012 hints = f" WITH ({hints})" if hints else "" +1013 laterals = self.expressions(expression, key="laterals", sep="") +1014 joins = self.expressions(expression, key="joins", sep="") +1015 pivots = self.expressions(expression, key="pivots", sep="") +1016 system_time = expression.args.get("system_time") +1017 system_time = f" {self.sql(expression, 'system_time')}" if system_time else "" +1018 +1019 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" +1020 +1021 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: +1022 if self.alias_post_tablesample and expression.this.alias: +1023 this = self.sql(expression.this, "this") +1024 alias = f" AS {self.sql(expression.this, 'alias')}" +1025 else: +1026 this = self.sql(expression, "this") +1027 alias = "" +1028 method = self.sql(expression, "method") +1029 method = f"{method.upper()} " if method else "" +1030 numerator = self.sql(expression, "bucket_numerator") +1031 denominator = self.sql(expression, "bucket_denominator") +1032 field = self.sql(expression, "bucket_field") +1033 field = f" ON {field}" if field else "" +1034 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" +1035 percent = self.sql(expression, "percent") +1036 percent = f"{percent} PERCENT" if percent else "" +1037 rows = self.sql(expression, "rows") +1038 rows = f"{rows} ROWS" if rows else "" +1039 size = self.sql(expression, "size") +1040 seed = self.sql(expression, "seed") +1041 seed = f" {seed_prefix} ({seed})" if seed else "" +1042 kind = expression.args.get("kind", "TABLESAMPLE") +1043 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" +1044 +1045 def pivot_sql(self, expression: exp.Pivot) -> str: +1046 this = self.sql(expression, "this") +1047 alias = self.sql(expression, "alias") +1048 alias = f" AS {alias}" if alias else "" +1049 unpivot = expression.args.get("unpivot") +1050 direction = "UNPIVOT" if unpivot else "PIVOT" +1051 expressions = self.expressions(expression, key="expressions") +1052 field = self.sql(expression, "field") +1053 return f"{this} {direction}({expressions} FOR {field}){alias}" +1054 +1055 def tuple_sql(self, expression: exp.Tuple) -> str: +1056 return f"({self.expressions(expression, flat=True)})" +1057 +1058 def update_sql(self, expression: exp.Update) -> str: +1059 this = self.sql(expression, "this") +1060 set_sql = self.expressions(expression, flat=True) +1061 from_sql = self.sql(expression, "from") +1062 where_sql = self.sql(expression, "where") +1063 returning = self.sql(expression, "returning") +1064 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" +1065 return self.prepend_ctes(expression, sql) +1066 +1067 def values_sql(self, expression: exp.Values) -> str: +1068 args = self.expressions(expression) +1069 alias = self.sql(expression, "alias") +1070 values = f"VALUES{self.seg('')}{args}" +1071 values = ( +1072 f"({values})" +1073 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) +1074 else values +1075 ) +1076 return f"{values} AS {alias}" if alias else values +1077 +1078 def var_sql(self, expression: exp.Var) -> str: +1079 return self.sql(expression, "this") +1080 +1081 def into_sql(self, expression: exp.Into) -> str: +1082 temporary = " TEMPORARY" if expression.args.get("temporary") else "" +1083 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" +1084 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" +1085 +1086 def from_sql(self, expression: exp.From) -> str: +1087 expressions = self.expressions(expression, flat=True) +1088 return f"{self.seg('FROM')} {expressions}" +1089 +1090 def group_sql(self, expression: exp.Group) -> str: +1091 group_by = self.op_expressions("GROUP BY", expression) +1092 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) +1093 grouping_sets = ( +1094 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" +1095 ) +1096 +1097 cube = expression.args.get("cube", []) +1098 if seq_get(cube, 0) is True: +1099 return f"{group_by}{self.seg('WITH CUBE')}" +1100 else: +1101 cube_sql = self.expressions(expression, key="cube", indent=False) +1102 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" +1103 +1104 rollup = expression.args.get("rollup", []) +1105 if seq_get(rollup, 0) is True: +1106 return f"{group_by}{self.seg('WITH ROLLUP')}" +1107 else: +1108 rollup_sql = self.expressions(expression, key="rollup", indent=False) +1109 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" +1110 +1111 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") +1112 +1113 if expression.args.get("expressions") and groupings: +1114 group_by = f"{group_by}," +1115 +1116 return f"{group_by}{groupings}" +1117 +1118 def having_sql(self, expression: exp.Having) -> str: +1119 this = self.indent(self.sql(expression, "this")) +1120 return f"{self.seg('HAVING')}{self.sep()}{this}" +1121 +1122 def join_sql(self, expression: exp.Join) -> str: +1123 op_sql = self.seg( +1124 " ".join( +1125 op +1126 for op in ( +1127 "NATURAL" if expression.args.get("natural") else None, +1128 expression.side, +1129 expression.kind, +1130 "JOIN", +1131 ) +1132 if op +1133 ) +1134 ) +1135 on_sql = self.sql(expression, "on") +1136 using = expression.args.get("using") +1137 +1138 if not on_sql and using: +1139 on_sql = csv(*(self.sql(column) for column in using)) +1140 +1141 if on_sql: +1142 on_sql = self.indent(on_sql, skip_first=True) +1143 space = self.seg(" " * self.pad) if self.pretty else " " +1144 if using: +1145 on_sql = f"{space}USING ({on_sql})" +1146 else: +1147 on_sql = f"{space}ON {on_sql}" +1148 +1149 expression_sql = self.sql(expression, "expression") +1150 this_sql = self.sql(expression, "this") +1151 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" +1152 +1153 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: +1154 args = self.expressions(expression, flat=True) +1155 args = f"({args})" if len(args.split(",")) > 1 else args +1156 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" +1157 +1158 def lateral_sql(self, expression: exp.Lateral) -> str: +1159 this = self.sql(expression, "this") +1160 +1161 if isinstance(expression.this, exp.Subquery): +1162 return f"LATERAL {this}" +1163 +1164 if expression.args.get("view"): +1165 alias = expression.args["alias"] +1166 columns = self.expressions(alias, key="columns", flat=True) +1167 table = f" {alias.name}" if alias.name else "" +1168 columns = f" AS {columns}" if columns else "" +1169 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") +1170 return f"{op_sql}{self.sep()}{this}{table}{columns}" +1171 +1172 alias = self.sql(expression, "alias") +1173 alias = f" AS {alias}" if alias else "" +1174 return f"LATERAL {this}{alias}" 1175 -1176 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") -1177 return "" -1178 -1179 def literal_sql(self, expression: exp.Literal) -> str: -1180 text = expression.this or "" -1181 if expression.is_string: -1182 text = text.replace(self.quote_end, self._escaped_quote_end) -1183 if self.pretty: -1184 text = text.replace("\n", self.SENTINEL_LINE_BREAK) -1185 text = f"{self.quote_start}{text}{self.quote_end}" -1186 return text -1187 -1188 def loaddata_sql(self, expression: exp.LoadData) -> str: -1189 local = " LOCAL" if expression.args.get("local") else "" -1190 inpath = f" INPATH {self.sql(expression, 'inpath')}" -1191 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" -1192 this = f" INTO TABLE {self.sql(expression, 'this')}" -1193 partition = self.sql(expression, "partition") -1194 partition = f" {partition}" if partition else "" -1195 input_format = self.sql(expression, "input_format") -1196 input_format = f" INPUTFORMAT {input_format}" if input_format else "" -1197 serde = self.sql(expression, "serde") -1198 serde = f" SERDE {serde}" if serde else "" -1199 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" +1176 def limit_sql(self, expression: exp.Limit) -> str: +1177 this = self.sql(expression, "this") +1178 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" +1179 +1180 def offset_sql(self, expression: exp.Offset) -> str: +1181 this = self.sql(expression, "this") +1182 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" +1183 +1184 def lock_sql(self, expression: exp.Lock) -> str: +1185 if self.LOCKING_READS_SUPPORTED: +1186 lock_type = "UPDATE" if expression.args["update"] else "SHARE" +1187 return self.seg(f"FOR {lock_type}") +1188 +1189 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") +1190 return "" +1191 +1192 def literal_sql(self, expression: exp.Literal) -> str: +1193 text = expression.this or "" +1194 if expression.is_string: +1195 text = text.replace(self.quote_end, self._escaped_quote_end) +1196 if self.pretty: +1197 text = text.replace("\n", self.SENTINEL_LINE_BREAK) +1198 text = f"{self.quote_start}{text}{self.quote_end}" +1199 return text 1200 -1201 def null_sql(self, *_) -> str: -1202 return "NULL" -1203 -1204 def boolean_sql(self, expression: exp.Boolean) -> str: -1205 return "TRUE" if expression.this else "FALSE" -1206 -1207 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: -1208 this = self.sql(expression, "this") -1209 this = f"{this} " if this else this -1210 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore -1211 -1212 def cluster_sql(self, expression: exp.Cluster) -> str: -1213 return self.op_expressions("CLUSTER BY", expression) -1214 -1215 def distribute_sql(self, expression: exp.Distribute) -> str: -1216 return self.op_expressions("DISTRIBUTE BY", expression) -1217 -1218 def sort_sql(self, expression: exp.Sort) -> str: -1219 return self.op_expressions("SORT BY", expression) -1220 -1221 def ordered_sql(self, expression: exp.Ordered) -> str: -1222 desc = expression.args.get("desc") -1223 asc = not desc +1201 def loaddata_sql(self, expression: exp.LoadData) -> str: +1202 local = " LOCAL" if expression.args.get("local") else "" +1203 inpath = f" INPATH {self.sql(expression, 'inpath')}" +1204 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" +1205 this = f" INTO TABLE {self.sql(expression, 'this')}" +1206 partition = self.sql(expression, "partition") +1207 partition = f" {partition}" if partition else "" +1208 input_format = self.sql(expression, "input_format") +1209 input_format = f" INPUTFORMAT {input_format}" if input_format else "" +1210 serde = self.sql(expression, "serde") +1211 serde = f" SERDE {serde}" if serde else "" +1212 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" +1213 +1214 def null_sql(self, *_) -> str: +1215 return "NULL" +1216 +1217 def boolean_sql(self, expression: exp.Boolean) -> str: +1218 return "TRUE" if expression.this else "FALSE" +1219 +1220 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: +1221 this = self.sql(expression, "this") +1222 this = f"{this} " if this else this +1223 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore 1224 -1225 nulls_first = expression.args.get("nulls_first") -1226 nulls_last = not nulls_first -1227 nulls_are_large = self.null_ordering == "nulls_are_large" -1228 nulls_are_small = self.null_ordering == "nulls_are_small" -1229 nulls_are_last = self.null_ordering == "nulls_are_last" +1225 def cluster_sql(self, expression: exp.Cluster) -> str: +1226 return self.op_expressions("CLUSTER BY", expression) +1227 +1228 def distribute_sql(self, expression: exp.Distribute) -> str: +1229 return self.op_expressions("DISTRIBUTE BY", expression) 1230 -1231 sort_order = " DESC" if desc else "" -1232 nulls_sort_change = "" -1233 if nulls_first and ( -1234 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last -1235 ): -1236 nulls_sort_change = " NULLS FIRST" -1237 elif ( -1238 nulls_last -1239 and ((asc and nulls_are_small) or (desc and nulls_are_large)) -1240 and not nulls_are_last -1241 ): -1242 nulls_sort_change = " NULLS LAST" +1231 def sort_sql(self, expression: exp.Sort) -> str: +1232 return self.op_expressions("SORT BY", expression) +1233 +1234 def ordered_sql(self, expression: exp.Ordered) -> str: +1235 desc = expression.args.get("desc") +1236 asc = not desc +1237 +1238 nulls_first = expression.args.get("nulls_first") +1239 nulls_last = not nulls_first +1240 nulls_are_large = self.null_ordering == "nulls_are_large" +1241 nulls_are_small = self.null_ordering == "nulls_are_small" +1242 nulls_are_last = self.null_ordering == "nulls_are_last" 1243 -1244 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: -1245 self.unsupported( -1246 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" -1247 ) -1248 nulls_sort_change = "" -1249 -1250 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" -1251 -1252 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: -1253 partition = self.partition_by_sql(expression) -1254 order = self.sql(expression, "order") -1255 measures = self.sql(expression, "measures") -1256 measures = self.seg(f"MEASURES {measures}") if measures else "" -1257 rows = self.sql(expression, "rows") -1258 rows = self.seg(rows) if rows else "" -1259 after = self.sql(expression, "after") -1260 after = self.seg(after) if after else "" -1261 pattern = self.sql(expression, "pattern") -1262 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" -1263 define = self.sql(expression, "define") -1264 define = self.seg(f"DEFINE {define}") if define else "" -1265 body = "".join( -1266 ( -1267 partition, -1268 order, -1269 measures, -1270 rows, -1271 after, -1272 pattern, -1273 define, -1274 ) -1275 ) -1276 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}" -1277 -1278 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: -1279 return csv( -1280 *sqls, -1281 *[self.sql(sql) for sql in expression.args.get("joins") or []], -1282 self.sql(expression, "match"), -1283 *[self.sql(sql) for sql in expression.args.get("laterals") or []], -1284 self.sql(expression, "where"), -1285 self.sql(expression, "group"), -1286 self.sql(expression, "having"), -1287 self.sql(expression, "qualify"), -1288 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) -1289 if expression.args.get("windows") -1290 else "", -1291 self.sql(expression, "distribute"), -1292 self.sql(expression, "sort"), -1293 self.sql(expression, "cluster"), -1294 self.sql(expression, "order"), -1295 self.sql(expression, "limit"), -1296 self.sql(expression, "offset"), -1297 self.sql(expression, "lock"), -1298 sep="", -1299 ) -1300 -1301 def select_sql(self, expression: exp.Select) -> str: -1302 hint = self.sql(expression, "hint") -1303 distinct = self.sql(expression, "distinct") -1304 distinct = f" {distinct}" if distinct else "" -1305 expressions = self.expressions(expression) -1306 expressions = f"{self.sep()}{expressions}" if expressions else expressions -1307 sql = self.query_modifiers( -1308 expression, -1309 f"SELECT{hint}{distinct}{expressions}", -1310 self.sql(expression, "into", comment=False), -1311 self.sql(expression, "from", comment=False), -1312 ) -1313 return self.prepend_ctes(expression, sql) +1244 sort_order = " DESC" if desc else "" +1245 nulls_sort_change = "" +1246 if nulls_first and ( +1247 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last +1248 ): +1249 nulls_sort_change = " NULLS FIRST" +1250 elif ( +1251 nulls_last +1252 and ((asc and nulls_are_small) or (desc and nulls_are_large)) +1253 and not nulls_are_last +1254 ): +1255 nulls_sort_change = " NULLS LAST" +1256 +1257 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: +1258 self.unsupported( +1259 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" +1260 ) +1261 nulls_sort_change = "" +1262 +1263 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" +1264 +1265 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: +1266 partition = self.partition_by_sql(expression) +1267 order = self.sql(expression, "order") +1268 measures = self.sql(expression, "measures") +1269 measures = self.seg(f"MEASURES {measures}") if measures else "" +1270 rows = self.sql(expression, "rows") +1271 rows = self.seg(rows) if rows else "" +1272 after = self.sql(expression, "after") +1273 after = self.seg(after) if after else "" +1274 pattern = self.sql(expression, "pattern") +1275 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" +1276 define = self.sql(expression, "define") +1277 define = self.seg(f"DEFINE {define}") if define else "" +1278 body = "".join( +1279 ( +1280 partition, +1281 order, +1282 measures, +1283 rows, +1284 after, +1285 pattern, +1286 define, +1287 ) +1288 ) +1289 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}" +1290 +1291 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: +1292 return csv( +1293 *sqls, +1294 *[self.sql(sql) for sql in expression.args.get("joins") or []], +1295 self.sql(expression, "match"), +1296 *[self.sql(sql) for sql in expression.args.get("laterals") or []], +1297 self.sql(expression, "where"), +1298 self.sql(expression, "group"), +1299 self.sql(expression, "having"), +1300 self.sql(expression, "qualify"), +1301 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) +1302 if expression.args.get("windows") +1303 else "", +1304 self.sql(expression, "distribute"), +1305 self.sql(expression, "sort"), +1306 self.sql(expression, "cluster"), +1307 self.sql(expression, "order"), +1308 self.sql(expression, "limit"), +1309 self.sql(expression, "offset"), +1310 self.sql(expression, "lock"), +1311 self.sql(expression, "sample"), +1312 sep="", +1313 ) 1314 -1315 def schema_sql(self, expression: exp.Schema) -> str: -1316 this = self.sql(expression, "this") -1317 this = f"{this} " if this else "" -1318 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" -1319 return f"{this}{sql}" -1320 -1321 def star_sql(self, expression: exp.Star) -> str: -1322 except_ = self.expressions(expression, key="except", flat=True) -1323 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" -1324 replace = self.expressions(expression, key="replace", flat=True) -1325 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" -1326 return f"*{except_}{replace}" -1327 -1328 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: -1329 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" -1330 -1331 def parameter_sql(self, expression: exp.Parameter) -> str: -1332 this = self.sql(expression, "this") -1333 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" -1334 return f"{self.PARAMETER_TOKEN}{this}" -1335 -1336 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: -1337 this = self.sql(expression, "this") -1338 kind = expression.text("kind") -1339 if kind: -1340 kind = f"{kind}." -1341 return f"@@{kind}{this}" -1342 -1343 def placeholder_sql(self, expression: exp.Placeholder) -> str: -1344 return f":{expression.name}" if expression.name else "?" -1345 -1346 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: -1347 alias = self.sql(expression, "alias") -1348 alias = f"{sep}{alias}" if alias else "" +1315 def select_sql(self, expression: exp.Select) -> str: +1316 hint = self.sql(expression, "hint") +1317 distinct = self.sql(expression, "distinct") +1318 distinct = f" {distinct}" if distinct else "" +1319 expressions = self.expressions(expression) +1320 expressions = f"{self.sep()}{expressions}" if expressions else expressions +1321 sql = self.query_modifiers( +1322 expression, +1323 f"SELECT{hint}{distinct}{expressions}", +1324 self.sql(expression, "into", comment=False), +1325 self.sql(expression, "from", comment=False), +1326 ) +1327 return self.prepend_ctes(expression, sql) +1328 +1329 def schema_sql(self, expression: exp.Schema) -> str: +1330 this = self.sql(expression, "this") +1331 this = f"{this} " if this else "" +1332 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" +1333 return f"{this}{sql}" +1334 +1335 def star_sql(self, expression: exp.Star) -> str: +1336 except_ = self.expressions(expression, key="except", flat=True) +1337 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" +1338 replace = self.expressions(expression, key="replace", flat=True) +1339 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" +1340 return f"*{except_}{replace}" +1341 +1342 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: +1343 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" +1344 +1345 def parameter_sql(self, expression: exp.Parameter) -> str: +1346 this = self.sql(expression, "this") +1347 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" +1348 return f"{self.PARAMETER_TOKEN}{this}" 1349 -1350 sql = self.query_modifiers( -1351 expression, -1352 self.wrap(expression), -1353 self.expressions(expression, key="pivots", sep=" "), -1354 alias, -1355 ) +1350 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: +1351 this = self.sql(expression, "this") +1352 kind = expression.text("kind") +1353 if kind: +1354 kind = f"{kind}." +1355 return f"@@{kind}{this}" 1356 -1357 return self.prepend_ctes(expression, sql) -1358 -1359 def qualify_sql(self, expression: exp.Qualify) -> str: -1360 this = self.indent(self.sql(expression, "this")) -1361 return f"{self.seg('QUALIFY')}{self.sep()}{this}" -1362 -1363 def union_sql(self, expression: exp.Union) -> str: -1364 return self.prepend_ctes( +1357 def placeholder_sql(self, expression: exp.Placeholder) -> str: +1358 return f":{expression.name}" if expression.name else "?" +1359 +1360 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: +1361 alias = self.sql(expression, "alias") +1362 alias = f"{sep}{alias}" if alias else "" +1363 +1364 sql = self.query_modifiers( 1365 expression, -1366 self.set_operation(expression, self.union_op(expression)), -1367 ) -1368 -1369 def union_op(self, expression: exp.Union) -> str: -1370 kind = " DISTINCT" if self.EXPLICIT_UNION else "" -1371 kind = kind if expression.args.get("distinct") else " ALL" -1372 return f"UNION{kind}" -1373 -1374 def unnest_sql(self, expression: exp.Unnest) -> str: -1375 args = self.expressions(expression, flat=True) -1376 alias = expression.args.get("alias") -1377 if alias and self.unnest_column_only: -1378 columns = alias.columns -1379 alias = self.sql(columns[0]) if columns else "" -1380 else: -1381 alias = self.sql(expression, "alias") -1382 alias = f" AS {alias}" if alias else alias -1383 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" -1384 offset = expression.args.get("offset") -1385 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" -1386 return f"UNNEST({args}){ordinality}{alias}{offset}" +1366 self.wrap(expression), +1367 self.expressions(expression, key="pivots", sep=" "), +1368 alias, +1369 ) +1370 +1371 return self.prepend_ctes(expression, sql) +1372 +1373 def qualify_sql(self, expression: exp.Qualify) -> str: +1374 this = self.indent(self.sql(expression, "this")) +1375 return f"{self.seg('QUALIFY')}{self.sep()}{this}" +1376 +1377 def union_sql(self, expression: exp.Union) -> str: +1378 return self.prepend_ctes( +1379 expression, +1380 self.set_operation(expression, self.union_op(expression)), +1381 ) +1382 +1383 def union_op(self, expression: exp.Union) -> str: +1384 kind = " DISTINCT" if self.EXPLICIT_UNION else "" +1385 kind = kind if expression.args.get("distinct") else " ALL" +1386 return f"UNION{kind}" 1387 -1388 def where_sql(self, expression: exp.Where) -> str: -1389 this = self.indent(self.sql(expression, "this")) -1390 return f"{self.seg('WHERE')}{self.sep()}{this}" -1391 -1392 def window_sql(self, expression: exp.Window) -> str: -1393 this = self.sql(expression, "this") -1394 -1395 partition = self.partition_by_sql(expression) -1396 -1397 order = expression.args.get("order") -1398 order_sql = self.order_sql(order, flat=True) if order else "" -1399 -1400 partition_sql = partition + " " if partition and order else partition +1388 def unnest_sql(self, expression: exp.Unnest) -> str: +1389 args = self.expressions(expression, flat=True) +1390 alias = expression.args.get("alias") +1391 if alias and self.unnest_column_only: +1392 columns = alias.columns +1393 alias = self.sql(columns[0]) if columns else "" +1394 else: +1395 alias = self.sql(expression, "alias") +1396 alias = f" AS {alias}" if alias else alias +1397 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" +1398 offset = expression.args.get("offset") +1399 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" +1400 return f"UNNEST({args}){ordinality}{alias}{offset}" 1401 -1402 spec = expression.args.get("spec") -1403 spec_sql = " " + self.window_spec_sql(spec) if spec else "" -1404 -1405 alias = self.sql(expression, "alias") -1406 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" -1407 -1408 if not partition and not order and not spec and alias: -1409 return f"{this} {alias}" +1402 def where_sql(self, expression: exp.Where) -> str: +1403 this = self.indent(self.sql(expression, "this")) +1404 return f"{self.seg('WHERE')}{self.sep()}{this}" +1405 +1406 def window_sql(self, expression: exp.Window) -> str: +1407 this = self.sql(expression, "this") +1408 +1409 partition = self.partition_by_sql(expression) 1410 -1411 window_args = alias + partition_sql + order_sql + spec_sql -1412 -1413 return f"{this} ({window_args.strip()})" -1414 -1415 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: -1416 partition = self.expressions(expression, key="partition_by", flat=True) -1417 return f"PARTITION BY {partition}" if partition else "" +1411 order = expression.args.get("order") +1412 order_sql = self.order_sql(order, flat=True) if order else "" +1413 +1414 partition_sql = partition + " " if partition and order else partition +1415 +1416 spec = expression.args.get("spec") +1417 spec_sql = " " + self.window_spec_sql(spec) if spec else "" 1418 -1419 def window_spec_sql(self, expression: exp.WindowSpec) -> str: -1420 kind = self.sql(expression, "kind") -1421 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") -1422 end = ( -1423 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") -1424 or "CURRENT ROW" -1425 ) -1426 return f"{kind} BETWEEN {start} AND {end}" -1427 -1428 def withingroup_sql(self, expression: exp.WithinGroup) -> str: -1429 this = self.sql(expression, "this") -1430 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space -1431 return f"{this} WITHIN GROUP ({expression_sql})" +1419 alias = self.sql(expression, "alias") +1420 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" +1421 +1422 if not partition and not order and not spec and alias: +1423 return f"{this} {alias}" +1424 +1425 window_args = alias + partition_sql + order_sql + spec_sql +1426 +1427 return f"{this} ({window_args.strip()})" +1428 +1429 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: +1430 partition = self.expressions(expression, key="partition_by", flat=True) +1431 return f"PARTITION BY {partition}" if partition else "" 1432 -1433 def between_sql(self, expression: exp.Between) -> str: -1434 this = self.sql(expression, "this") -1435 low = self.sql(expression, "low") -1436 high = self.sql(expression, "high") -1437 return f"{this} BETWEEN {low} AND {high}" -1438 -1439 def bracket_sql(self, expression: exp.Bracket) -> str: -1440 expressions = apply_index_offset(expression.expressions, self.index_offset) -1441 expressions_sql = ", ".join(self.sql(e) for e in expressions) -1442 -1443 return f"{self.sql(expression, 'this')}[{expressions_sql}]" -1444 -1445 def all_sql(self, expression: exp.All) -> str: -1446 return f"ALL {self.wrap(expression)}" -1447 -1448 def any_sql(self, expression: exp.Any) -> str: -1449 this = self.sql(expression, "this") -1450 if isinstance(expression.this, exp.Subqueryable): -1451 this = self.wrap(this) -1452 return f"ANY {this}" -1453 -1454 def exists_sql(self, expression: exp.Exists) -> str: -1455 return f"EXISTS{self.wrap(expression)}" +1433 def window_spec_sql(self, expression: exp.WindowSpec) -> str: +1434 kind = self.sql(expression, "kind") +1435 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") +1436 end = ( +1437 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") +1438 or "CURRENT ROW" +1439 ) +1440 return f"{kind} BETWEEN {start} AND {end}" +1441 +1442 def withingroup_sql(self, expression: exp.WithinGroup) -> str: +1443 this = self.sql(expression, "this") +1444 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space +1445 return f"{this} WITHIN GROUP ({expression_sql})" +1446 +1447 def between_sql(self, expression: exp.Between) -> str: +1448 this = self.sql(expression, "this") +1449 low = self.sql(expression, "low") +1450 high = self.sql(expression, "high") +1451 return f"{this} BETWEEN {low} AND {high}" +1452 +1453 def bracket_sql(self, expression: exp.Bracket) -> str: +1454 expressions = apply_index_offset(expression.expressions, self.index_offset) +1455 expressions_sql = ", ".join(self.sql(e) for e in expressions) 1456 -1457 def case_sql(self, expression: exp.Case) -> str: -1458 this = self.sql(expression, "this") -1459 statements = [f"CASE {this}" if this else "CASE"] -1460 -1461 for e in expression.args["ifs"]: -1462 statements.append(f"WHEN {self.sql(e, 'this')}") -1463 statements.append(f"THEN {self.sql(e, 'true')}") -1464 -1465 default = self.sql(expression, "default") -1466 -1467 if default: -1468 statements.append(f"ELSE {default}") -1469 -1470 statements.append("END") -1471 -1472 if self.pretty and self.text_width(statements) > self._max_text_width: -1473 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1457 return f"{self.sql(expression, 'this')}[{expressions_sql}]" +1458 +1459 def all_sql(self, expression: exp.All) -> str: +1460 return f"ALL {self.wrap(expression)}" +1461 +1462 def any_sql(self, expression: exp.Any) -> str: +1463 this = self.sql(expression, "this") +1464 if isinstance(expression.this, exp.Subqueryable): +1465 this = self.wrap(this) +1466 return f"ANY {this}" +1467 +1468 def exists_sql(self, expression: exp.Exists) -> str: +1469 return f"EXISTS{self.wrap(expression)}" +1470 +1471 def case_sql(self, expression: exp.Case) -> str: +1472 this = self.sql(expression, "this") +1473 statements = [f"CASE {this}" if this else "CASE"] 1474 -1475 return " ".join(statements) -1476 -1477 def constraint_sql(self, expression: exp.Constraint) -> str: -1478 this = self.sql(expression, "this") -1479 expressions = self.expressions(expression, flat=True) -1480 return f"CONSTRAINT {this} {expressions}" -1481 -1482 def extract_sql(self, expression: exp.Extract) -> str: -1483 this = self.sql(expression, "this") -1484 expression_sql = self.sql(expression, "expression") -1485 return f"EXTRACT({this} FROM {expression_sql})" -1486 -1487 def trim_sql(self, expression: exp.Trim) -> str: -1488 trim_type = self.sql(expression, "position") -1489 -1490 if trim_type == "LEADING": -1491 return self.func("LTRIM", expression.this) -1492 elif trim_type == "TRAILING": -1493 return self.func("RTRIM", expression.this) -1494 else: -1495 return self.func("TRIM", expression.this, expression.expression) -1496 -1497 def concat_sql(self, expression: exp.Concat) -> str: -1498 if len(expression.expressions) == 1: -1499 return self.sql(expression.expressions[0]) -1500 return self.function_fallback_sql(expression) -1501 -1502 def check_sql(self, expression: exp.Check) -> str: -1503 this = self.sql(expression, key="this") -1504 return f"CHECK ({this})" -1505 -1506 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: -1507 expressions = self.expressions(expression, flat=True) -1508 reference = self.sql(expression, "reference") -1509 reference = f" {reference}" if reference else "" -1510 delete = self.sql(expression, "delete") -1511 delete = f" ON DELETE {delete}" if delete else "" -1512 update = self.sql(expression, "update") -1513 update = f" ON UPDATE {update}" if update else "" -1514 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" +1475 for e in expression.args["ifs"]: +1476 statements.append(f"WHEN {self.sql(e, 'this')}") +1477 statements.append(f"THEN {self.sql(e, 'true')}") +1478 +1479 default = self.sql(expression, "default") +1480 +1481 if default: +1482 statements.append(f"ELSE {default}") +1483 +1484 statements.append("END") +1485 +1486 if self.pretty and self.text_width(statements) > self._max_text_width: +1487 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1488 +1489 return " ".join(statements) +1490 +1491 def constraint_sql(self, expression: exp.Constraint) -> str: +1492 this = self.sql(expression, "this") +1493 expressions = self.expressions(expression, flat=True) +1494 return f"CONSTRAINT {this} {expressions}" +1495 +1496 def extract_sql(self, expression: exp.Extract) -> str: +1497 this = self.sql(expression, "this") +1498 expression_sql = self.sql(expression, "expression") +1499 return f"EXTRACT({this} FROM {expression_sql})" +1500 +1501 def trim_sql(self, expression: exp.Trim) -> str: +1502 trim_type = self.sql(expression, "position") +1503 +1504 if trim_type == "LEADING": +1505 return self.func("LTRIM", expression.this) +1506 elif trim_type == "TRAILING": +1507 return self.func("RTRIM", expression.this) +1508 else: +1509 return self.func("TRIM", expression.this, expression.expression) +1510 +1511 def concat_sql(self, expression: exp.Concat) -> str: +1512 if len(expression.expressions) == 1: +1513 return self.sql(expression.expressions[0]) +1514 return self.function_fallback_sql(expression) 1515 -1516 def primarykey_sql(self, expression: exp.ForeignKey) -> str: -1517 expressions = self.expressions(expression, flat=True) -1518 options = self.expressions(expression, "options", flat=True, sep=" ") -1519 options = f" {options}" if options else "" -1520 return f"PRIMARY KEY ({expressions}){options}" -1521 -1522 def unique_sql(self, expression: exp.Unique) -> str: -1523 columns = self.expressions(expression, key="expressions") -1524 return f"UNIQUE ({columns})" -1525 -1526 def if_sql(self, expression: exp.If) -> str: -1527 return self.case_sql( -1528 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) -1529 ) -1530 -1531 def in_sql(self, expression: exp.In) -> str: -1532 query = expression.args.get("query") -1533 unnest = expression.args.get("unnest") -1534 field = expression.args.get("field") -1535 is_global = " GLOBAL" if expression.args.get("is_global") else "" -1536 -1537 if query: -1538 in_sql = self.wrap(query) -1539 elif unnest: -1540 in_sql = self.in_unnest_op(unnest) -1541 elif field: -1542 in_sql = self.sql(field) -1543 else: -1544 in_sql = f"({self.expressions(expression, flat=True)})" -1545 -1546 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" -1547 -1548 def in_unnest_op(self, unnest: exp.Unnest) -> str: -1549 return f"(SELECT {self.sql(unnest)})" +1516 def check_sql(self, expression: exp.Check) -> str: +1517 this = self.sql(expression, key="this") +1518 return f"CHECK ({this})" +1519 +1520 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: +1521 expressions = self.expressions(expression, flat=True) +1522 reference = self.sql(expression, "reference") +1523 reference = f" {reference}" if reference else "" +1524 delete = self.sql(expression, "delete") +1525 delete = f" ON DELETE {delete}" if delete else "" +1526 update = self.sql(expression, "update") +1527 update = f" ON UPDATE {update}" if update else "" +1528 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" +1529 +1530 def primarykey_sql(self, expression: exp.ForeignKey) -> str: +1531 expressions = self.expressions(expression, flat=True) +1532 options = self.expressions(expression, "options", flat=True, sep=" ") +1533 options = f" {options}" if options else "" +1534 return f"PRIMARY KEY ({expressions}){options}" +1535 +1536 def unique_sql(self, expression: exp.Unique) -> str: +1537 columns = self.expressions(expression, key="expressions") +1538 return f"UNIQUE ({columns})" +1539 +1540 def if_sql(self, expression: exp.If) -> str: +1541 return self.case_sql( +1542 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) +1543 ) +1544 +1545 def in_sql(self, expression: exp.In) -> str: +1546 query = expression.args.get("query") +1547 unnest = expression.args.get("unnest") +1548 field = expression.args.get("field") +1549 is_global = " GLOBAL" if expression.args.get("is_global") else "" 1550 -1551 def interval_sql(self, expression: exp.Interval) -> str: -1552 this = expression.args.get("this") -1553 if this: -1554 this = ( -1555 f" {this}" -1556 if isinstance(this, exp.Literal) or isinstance(this, exp.Paren) -1557 else f" ({this})" -1558 ) -1559 else: -1560 this = "" -1561 unit = expression.args.get("unit") -1562 unit = f" {unit}" if unit else "" -1563 return f"INTERVAL{this}{unit}" +1551 if query: +1552 in_sql = self.wrap(query) +1553 elif unnest: +1554 in_sql = self.in_unnest_op(unnest) +1555 elif field: +1556 in_sql = self.sql(field) +1557 else: +1558 in_sql = f"({self.expressions(expression, flat=True)})" +1559 +1560 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" +1561 +1562 def in_unnest_op(self, unnest: exp.Unnest) -> str: +1563 return f"(SELECT {self.sql(unnest)})" 1564 -1565 def return_sql(self, expression: exp.Return) -> str: -1566 return f"RETURN {self.sql(expression, 'this')}" -1567 -1568 def reference_sql(self, expression: exp.Reference) -> str: -1569 this = self.sql(expression, "this") -1570 expressions = self.expressions(expression, flat=True) -1571 expressions = f"({expressions})" if expressions else "" -1572 options = self.expressions(expression, "options", flat=True, sep=" ") -1573 options = f" {options}" if options else "" -1574 return f"REFERENCES {this}{expressions}{options}" -1575 -1576 def anonymous_sql(self, expression: exp.Anonymous) -> str: -1577 return self.func(expression.name, *expression.expressions) +1565 def interval_sql(self, expression: exp.Interval) -> str: +1566 this = expression.args.get("this") +1567 if this: +1568 this = ( +1569 f" {this}" +1570 if isinstance(this, exp.Literal) or isinstance(this, exp.Paren) +1571 else f" ({this})" +1572 ) +1573 else: +1574 this = "" +1575 unit = expression.args.get("unit") +1576 unit = f" {unit}" if unit else "" +1577 return f"INTERVAL{this}{unit}" 1578 -1579 def paren_sql(self, expression: exp.Paren) -> str: -1580 if isinstance(expression.unnest(), exp.Select): -1581 sql = self.wrap(expression) -1582 else: -1583 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") -1584 sql = f"({sql}{self.seg(')', sep='')}" -1585 -1586 return self.prepend_ctes(expression, sql) -1587 -1588 def neg_sql(self, expression: exp.Neg) -> str: -1589 # This makes sure we don't convert "- - 5" to "--5", which is a comment -1590 this_sql = self.sql(expression, "this") -1591 sep = " " if this_sql[0] == "-" else "" -1592 return f"-{sep}{this_sql}" -1593 -1594 def not_sql(self, expression: exp.Not) -> str: -1595 return f"NOT {self.sql(expression, 'this')}" -1596 -1597 def alias_sql(self, expression: exp.Alias) -> str: -1598 to_sql = self.sql(expression, "alias") -1599 to_sql = f" AS {to_sql}" if to_sql else "" -1600 return f"{self.sql(expression, 'this')}{to_sql}" +1579 def return_sql(self, expression: exp.Return) -> str: +1580 return f"RETURN {self.sql(expression, 'this')}" +1581 +1582 def reference_sql(self, expression: exp.Reference) -> str: +1583 this = self.sql(expression, "this") +1584 expressions = self.expressions(expression, flat=True) +1585 expressions = f"({expressions})" if expressions else "" +1586 options = self.expressions(expression, "options", flat=True, sep=" ") +1587 options = f" {options}" if options else "" +1588 return f"REFERENCES {this}{expressions}{options}" +1589 +1590 def anonymous_sql(self, expression: exp.Anonymous) -> str: +1591 return self.func(expression.name, *expression.expressions) +1592 +1593 def paren_sql(self, expression: exp.Paren) -> str: +1594 if isinstance(expression.unnest(), exp.Select): +1595 sql = self.wrap(expression) +1596 else: +1597 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") +1598 sql = f"({sql}{self.seg(')', sep='')}" +1599 +1600 return self.prepend_ctes(expression, sql) 1601 -1602 def aliases_sql(self, expression: exp.Aliases) -> str: -1603 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" -1604 -1605 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: -1606 this = self.sql(expression, "this") -1607 zone = self.sql(expression, "zone") -1608 return f"{this} AT TIME ZONE {zone}" -1609 -1610 def add_sql(self, expression: exp.Add) -> str: -1611 return self.binary(expression, "+") -1612 -1613 def and_sql(self, expression: exp.And) -> str: -1614 return self.connector_sql(expression, "AND") +1602 def neg_sql(self, expression: exp.Neg) -> str: +1603 # This makes sure we don't convert "- - 5" to "--5", which is a comment +1604 this_sql = self.sql(expression, "this") +1605 sep = " " if this_sql[0] == "-" else "" +1606 return f"-{sep}{this_sql}" +1607 +1608 def not_sql(self, expression: exp.Not) -> str: +1609 return f"NOT {self.sql(expression, 'this')}" +1610 +1611 def alias_sql(self, expression: exp.Alias) -> str: +1612 to_sql = self.sql(expression, "alias") +1613 to_sql = f" AS {to_sql}" if to_sql else "" +1614 return f"{self.sql(expression, 'this')}{to_sql}" 1615 -1616 def connector_sql(self, expression: exp.Connector, op: str) -> str: -1617 if not self.pretty: -1618 return self.binary(expression, op) -1619 -1620 sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False)) -1621 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " -1622 return f"{sep}{op} ".join(sqls) +1616 def aliases_sql(self, expression: exp.Aliases) -> str: +1617 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" +1618 +1619 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: +1620 this = self.sql(expression, "this") +1621 zone = self.sql(expression, "zone") +1622 return f"{this} AT TIME ZONE {zone}" 1623 -1624 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: -1625 return self.binary(expression, "&") +1624 def add_sql(self, expression: exp.Add) -> str: +1625 return self.binary(expression, "+") 1626 -1627 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: -1628 return self.binary(expression, "<<") +1627 def and_sql(self, expression: exp.And) -> str: +1628 return self.connector_sql(expression, "AND") 1629 -1630 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: -1631 return f"~{self.sql(expression, 'this')}" -1632 -1633 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: -1634 return self.binary(expression, "|") -1635 -1636 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: -1637 return self.binary(expression, ">>") -1638 -1639 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: -1640 return self.binary(expression, "^") -1641 -1642 def cast_sql(self, expression: exp.Cast) -> str: -1643 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -1644 -1645 def currentdate_sql(self, expression: exp.CurrentDate) -> str: -1646 zone = self.sql(expression, "this") -1647 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" -1648 -1649 def collate_sql(self, expression: exp.Collate) -> str: -1650 return self.binary(expression, "COLLATE") -1651 -1652 def command_sql(self, expression: exp.Command) -> str: -1653 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" -1654 -1655 def comment_sql(self, expression: exp.Comment) -> str: -1656 this = self.sql(expression, "this") -1657 kind = expression.args["kind"] -1658 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " -1659 expression_sql = self.sql(expression, "expression") -1660 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" -1661 -1662 def transaction_sql(self, *_) -> str: -1663 return "BEGIN" -1664 -1665 def commit_sql(self, expression: exp.Commit) -> str: -1666 chain = expression.args.get("chain") -1667 if chain is not None: -1668 chain = " AND CHAIN" if chain else " AND NO CHAIN" -1669 -1670 return f"COMMIT{chain or ''}" -1671 -1672 def rollback_sql(self, expression: exp.Rollback) -> str: -1673 savepoint = expression.args.get("savepoint") -1674 savepoint = f" TO {savepoint}" if savepoint else "" -1675 return f"ROLLBACK{savepoint}" -1676 -1677 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: -1678 this = self.sql(expression, "this") -1679 -1680 dtype = self.sql(expression, "dtype") -1681 if dtype: -1682 collate = self.sql(expression, "collate") -1683 collate = f" COLLATE {collate}" if collate else "" -1684 using = self.sql(expression, "using") -1685 using = f" USING {using}" if using else "" -1686 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" -1687 -1688 default = self.sql(expression, "default") -1689 if default: -1690 return f"ALTER COLUMN {this} SET DEFAULT {default}" -1691 -1692 if not expression.args.get("drop"): -1693 self.unsupported("Unsupported ALTER COLUMN syntax") -1694 -1695 return f"ALTER COLUMN {this} DROP DEFAULT" -1696 -1697 def renametable_sql(self, expression: exp.RenameTable) -> str: -1698 this = self.sql(expression, "this") -1699 return f"RENAME TO {this}" -1700 -1701 def altertable_sql(self, expression: exp.AlterTable) -> str: -1702 actions = expression.args["actions"] -1703 -1704 if isinstance(actions[0], exp.ColumnDef): -1705 actions = self.expressions(expression, "actions", prefix="ADD COLUMN ") -1706 elif isinstance(actions[0], exp.Schema): -1707 actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ") -1708 elif isinstance(actions[0], exp.Delete): -1709 actions = self.expressions(expression, "actions", flat=True) -1710 else: -1711 actions = self.expressions(expression, "actions") -1712 -1713 exists = " IF EXISTS" if expression.args.get("exists") else "" -1714 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" -1715 -1716 def droppartition_sql(self, expression: exp.DropPartition) -> str: -1717 expressions = self.expressions(expression) -1718 exists = " IF EXISTS " if expression.args.get("exists") else " " -1719 return f"DROP{exists}{expressions}" -1720 -1721 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: -1722 this = self.sql(expression, "this") -1723 expression_ = self.sql(expression, "expression") -1724 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" -1725 -1726 enforced = expression.args.get("enforced") -1727 if enforced is not None: -1728 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" +1630 def connector_sql(self, expression: exp.Connector, op: str) -> str: +1631 if not self.pretty: +1632 return self.binary(expression, op) +1633 +1634 sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False)) +1635 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " +1636 return f"{sep}{op} ".join(sqls) +1637 +1638 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: +1639 return self.binary(expression, "&") +1640 +1641 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: +1642 return self.binary(expression, "<<") +1643 +1644 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: +1645 return f"~{self.sql(expression, 'this')}" +1646 +1647 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: +1648 return self.binary(expression, "|") +1649 +1650 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: +1651 return self.binary(expression, ">>") +1652 +1653 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: +1654 return self.binary(expression, "^") +1655 +1656 def cast_sql(self, expression: exp.Cast) -> str: +1657 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1658 +1659 def currentdate_sql(self, expression: exp.CurrentDate) -> str: +1660 zone = self.sql(expression, "this") +1661 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" +1662 +1663 def collate_sql(self, expression: exp.Collate) -> str: +1664 return self.binary(expression, "COLLATE") +1665 +1666 def command_sql(self, expression: exp.Command) -> str: +1667 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" +1668 +1669 def comment_sql(self, expression: exp.Comment) -> str: +1670 this = self.sql(expression, "this") +1671 kind = expression.args["kind"] +1672 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " +1673 expression_sql = self.sql(expression, "expression") +1674 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" +1675 +1676 def transaction_sql(self, *_) -> str: +1677 return "BEGIN" +1678 +1679 def commit_sql(self, expression: exp.Commit) -> str: +1680 chain = expression.args.get("chain") +1681 if chain is not None: +1682 chain = " AND CHAIN" if chain else " AND NO CHAIN" +1683 +1684 return f"COMMIT{chain or ''}" +1685 +1686 def rollback_sql(self, expression: exp.Rollback) -> str: +1687 savepoint = expression.args.get("savepoint") +1688 savepoint = f" TO {savepoint}" if savepoint else "" +1689 return f"ROLLBACK{savepoint}" +1690 +1691 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: +1692 this = self.sql(expression, "this") +1693 +1694 dtype = self.sql(expression, "dtype") +1695 if dtype: +1696 collate = self.sql(expression, "collate") +1697 collate = f" COLLATE {collate}" if collate else "" +1698 using = self.sql(expression, "using") +1699 using = f" USING {using}" if using else "" +1700 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" +1701 +1702 default = self.sql(expression, "default") +1703 if default: +1704 return f"ALTER COLUMN {this} SET DEFAULT {default}" +1705 +1706 if not expression.args.get("drop"): +1707 self.unsupported("Unsupported ALTER COLUMN syntax") +1708 +1709 return f"ALTER COLUMN {this} DROP DEFAULT" +1710 +1711 def renametable_sql(self, expression: exp.RenameTable) -> str: +1712 this = self.sql(expression, "this") +1713 return f"RENAME TO {this}" +1714 +1715 def altertable_sql(self, expression: exp.AlterTable) -> str: +1716 actions = expression.args["actions"] +1717 +1718 if isinstance(actions[0], exp.ColumnDef): +1719 actions = self.expressions(expression, "actions", prefix="ADD COLUMN ") +1720 elif isinstance(actions[0], exp.Schema): +1721 actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ") +1722 elif isinstance(actions[0], exp.Delete): +1723 actions = self.expressions(expression, "actions", flat=True) +1724 else: +1725 actions = self.expressions(expression, "actions") +1726 +1727 exists = " IF EXISTS" if expression.args.get("exists") else "" +1728 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" 1729 -1730 return f"{add_constraint} {expression_}" -1731 -1732 def distinct_sql(self, expression: exp.Distinct) -> str: -1733 this = self.expressions(expression, flat=True) -1734 this = f" {this}" if this else "" -1735 -1736 on = self.sql(expression, "on") -1737 on = f" ON {on}" if on else "" -1738 return f"DISTINCT{this}{on}" +1730 def droppartition_sql(self, expression: exp.DropPartition) -> str: +1731 expressions = self.expressions(expression) +1732 exists = " IF EXISTS " if expression.args.get("exists") else " " +1733 return f"DROP{exists}{expressions}" +1734 +1735 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: +1736 this = self.sql(expression, "this") +1737 expression_ = self.sql(expression, "expression") +1738 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" 1739 -1740 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: -1741 return f"{self.sql(expression, 'this')} IGNORE NULLS" -1742 -1743 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: -1744 return f"{self.sql(expression, 'this')} RESPECT NULLS" +1740 enforced = expression.args.get("enforced") +1741 if enforced is not None: +1742 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" +1743 +1744 return f"{add_constraint} {expression_}" 1745 -1746 def intdiv_sql(self, expression: exp.IntDiv) -> str: -1747 return self.sql( -1748 exp.Cast( -1749 this=exp.Div(this=expression.this, expression=expression.expression), -1750 to=exp.DataType(this=exp.DataType.Type.INT), -1751 ) -1752 ) +1746 def distinct_sql(self, expression: exp.Distinct) -> str: +1747 this = self.expressions(expression, flat=True) +1748 this = f" {this}" if this else "" +1749 +1750 on = self.sql(expression, "on") +1751 on = f" ON {on}" if on else "" +1752 return f"DISTINCT{this}{on}" 1753 -1754 def dpipe_sql(self, expression: exp.DPipe) -> str: -1755 return self.binary(expression, "||") +1754 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: +1755 return f"{self.sql(expression, 'this')} IGNORE NULLS" 1756 -1757 def div_sql(self, expression: exp.Div) -> str: -1758 return self.binary(expression, "/") +1757 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: +1758 return f"{self.sql(expression, 'this')} RESPECT NULLS" 1759 -1760 def overlaps_sql(self, expression: exp.Overlaps) -> str: -1761 return self.binary(expression, "OVERLAPS") -1762 -1763 def distance_sql(self, expression: exp.Distance) -> str: -1764 return self.binary(expression, "<->") -1765 -1766 def dot_sql(self, expression: exp.Dot) -> str: -1767 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" -1768 -1769 def eq_sql(self, expression: exp.EQ) -> str: -1770 return self.binary(expression, "=") -1771 -1772 def escape_sql(self, expression: exp.Escape) -> str: -1773 return self.binary(expression, "ESCAPE") +1760 def intdiv_sql(self, expression: exp.IntDiv) -> str: +1761 div = self.binary(expression, "/") +1762 return self.sql(exp.Cast(this=div, to=exp.DataType.build("INT"))) +1763 +1764 def dpipe_sql(self, expression: exp.DPipe) -> str: +1765 return self.binary(expression, "||") +1766 +1767 def div_sql(self, expression: exp.Div) -> str: +1768 div = self.binary(expression, "/") +1769 +1770 if not self.INTEGER_DIVISION: +1771 return self.sql(exp.Cast(this=div, to=exp.DataType.build("INT"))) +1772 +1773 return div 1774 -1775 def glob_sql(self, expression: exp.Glob) -> str: -1776 return self.binary(expression, "GLOB") -1777 -1778 def gt_sql(self, expression: exp.GT) -> str: -1779 return self.binary(expression, ">") -1780 -1781 def gte_sql(self, expression: exp.GTE) -> str: -1782 return self.binary(expression, ">=") -1783 -1784 def ilike_sql(self, expression: exp.ILike) -> str: -1785 return self.binary(expression, "ILIKE") -1786 -1787 def is_sql(self, expression: exp.Is) -> str: -1788 return self.binary(expression, "IS") -1789 -1790 def like_sql(self, expression: exp.Like) -> str: -1791 return self.binary(expression, "LIKE") -1792 -1793 def similarto_sql(self, expression: exp.SimilarTo) -> str: -1794 return self.binary(expression, "SIMILAR TO") -1795 -1796 def lt_sql(self, expression: exp.LT) -> str: -1797 return self.binary(expression, "<") -1798 -1799 def lte_sql(self, expression: exp.LTE) -> str: -1800 return self.binary(expression, "<=") -1801 -1802 def mod_sql(self, expression: exp.Mod) -> str: -1803 return self.binary(expression, "%") -1804 -1805 def mul_sql(self, expression: exp.Mul) -> str: -1806 return self.binary(expression, "*") -1807 -1808 def neq_sql(self, expression: exp.NEQ) -> str: -1809 return self.binary(expression, "<>") -1810 -1811 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: -1812 return self.binary(expression, "IS NOT DISTINCT FROM") -1813 -1814 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: -1815 return self.binary(expression, "IS DISTINCT FROM") -1816 -1817 def or_sql(self, expression: exp.Or) -> str: -1818 return self.connector_sql(expression, "OR") -1819 -1820 def slice_sql(self, expression: exp.Slice) -> str: -1821 return self.binary(expression, ":") -1822 -1823 def sub_sql(self, expression: exp.Sub) -> str: -1824 return self.binary(expression, "-") -1825 -1826 def trycast_sql(self, expression: exp.TryCast) -> str: -1827 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -1828 -1829 def use_sql(self, expression: exp.Use) -> str: -1830 kind = self.sql(expression, "kind") -1831 kind = f" {kind}" if kind else "" -1832 this = self.sql(expression, "this") -1833 this = f" {this}" if this else "" -1834 return f"USE{kind}{this}" +1775 def floatdiv_sql(self, expression: exp.FloatDiv) -> str: +1776 if self.INTEGER_DIVISION: +1777 this = exp.Cast(this=expression.this, to=exp.DataType.build("DOUBLE")) +1778 return self.div_sql(exp.Div(this=this, expression=expression.expression)) +1779 +1780 return self.binary(expression, "/") +1781 +1782 def overlaps_sql(self, expression: exp.Overlaps) -> str: +1783 return self.binary(expression, "OVERLAPS") +1784 +1785 def distance_sql(self, expression: exp.Distance) -> str: +1786 return self.binary(expression, "<->") +1787 +1788 def dot_sql(self, expression: exp.Dot) -> str: +1789 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" +1790 +1791 def eq_sql(self, expression: exp.EQ) -> str: +1792 return self.binary(expression, "=") +1793 +1794 def escape_sql(self, expression: exp.Escape) -> str: +1795 return self.binary(expression, "ESCAPE") +1796 +1797 def glob_sql(self, expression: exp.Glob) -> str: +1798 return self.binary(expression, "GLOB") +1799 +1800 def gt_sql(self, expression: exp.GT) -> str: +1801 return self.binary(expression, ">") +1802 +1803 def gte_sql(self, expression: exp.GTE) -> str: +1804 return self.binary(expression, ">=") +1805 +1806 def ilike_sql(self, expression: exp.ILike) -> str: +1807 return self.binary(expression, "ILIKE") +1808 +1809 def is_sql(self, expression: exp.Is) -> str: +1810 return self.binary(expression, "IS") +1811 +1812 def like_sql(self, expression: exp.Like) -> str: +1813 return self.binary(expression, "LIKE") +1814 +1815 def similarto_sql(self, expression: exp.SimilarTo) -> str: +1816 return self.binary(expression, "SIMILAR TO") +1817 +1818 def lt_sql(self, expression: exp.LT) -> str: +1819 return self.binary(expression, "<") +1820 +1821 def lte_sql(self, expression: exp.LTE) -> str: +1822 return self.binary(expression, "<=") +1823 +1824 def mod_sql(self, expression: exp.Mod) -> str: +1825 return self.binary(expression, "%") +1826 +1827 def mul_sql(self, expression: exp.Mul) -> str: +1828 return self.binary(expression, "*") +1829 +1830 def neq_sql(self, expression: exp.NEQ) -> str: +1831 return self.binary(expression, "<>") +1832 +1833 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: +1834 return self.binary(expression, "IS NOT DISTINCT FROM") 1835 -1836 def binary(self, expression: exp.Binary, op: str) -> str: -1837 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" +1836 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: +1837 return self.binary(expression, "IS DISTINCT FROM") 1838 -1839 def function_fallback_sql(self, expression: exp.Func) -> str: -1840 args = [] -1841 for arg_value in expression.args.values(): -1842 if isinstance(arg_value, list): -1843 for value in arg_value: -1844 args.append(value) -1845 else: -1846 args.append(arg_value) +1839 def or_sql(self, expression: exp.Or) -> str: +1840 return self.connector_sql(expression, "OR") +1841 +1842 def slice_sql(self, expression: exp.Slice) -> str: +1843 return self.binary(expression, ":") +1844 +1845 def sub_sql(self, expression: exp.Sub) -> str: +1846 return self.binary(expression, "-") 1847 -1848 return self.func(expression.sql_name(), *args) -1849 -1850 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: -1851 return f"{self.normalize_func(name)}({self.format_args(*args)})" -1852 -1853 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: -1854 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) -1855 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: -1856 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) -1857 return ", ".join(arg_sqls) -1858 -1859 def text_width(self, args: t.Iterable) -> int: -1860 return sum(len(arg) for arg in args) -1861 -1862 def format_time(self, expression: exp.Expression) -> t.Optional[str]: -1863 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) -1864 -1865 def expressions( -1866 self, -1867 expression: exp.Expression, -1868 key: t.Optional[str] = None, -1869 flat: bool = False, -1870 indent: bool = True, -1871 sep: str = ", ", -1872 prefix: str = "", -1873 ) -> str: -1874 expressions = expression.args.get(key or "expressions") -1875 -1876 if not expressions: -1877 return "" -1878 -1879 if flat: -1880 return sep.join(self.sql(e) for e in expressions) -1881 -1882 num_sqls = len(expressions) +1848 def trycast_sql(self, expression: exp.TryCast) -> str: +1849 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1850 +1851 def use_sql(self, expression: exp.Use) -> str: +1852 kind = self.sql(expression, "kind") +1853 kind = f" {kind}" if kind else "" +1854 this = self.sql(expression, "this") +1855 this = f" {this}" if this else "" +1856 return f"USE{kind}{this}" +1857 +1858 def binary(self, expression: exp.Binary, op: str) -> str: +1859 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" +1860 +1861 def function_fallback_sql(self, expression: exp.Func) -> str: +1862 args = [] +1863 for arg_value in expression.args.values(): +1864 if isinstance(arg_value, list): +1865 for value in arg_value: +1866 args.append(value) +1867 else: +1868 args.append(arg_value) +1869 +1870 return self.func(expression.sql_name(), *args) +1871 +1872 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: +1873 return f"{self.normalize_func(name)}({self.format_args(*args)})" +1874 +1875 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: +1876 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) +1877 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: +1878 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) +1879 return ", ".join(arg_sqls) +1880 +1881 def text_width(self, args: t.Iterable) -> int: +1882 return sum(len(arg) for arg in args) 1883 -1884 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly -1885 pad = " " * self.pad -1886 stripped_sep = sep.strip() -1887 -1888 result_sqls = [] -1889 for i, e in enumerate(expressions): -1890 sql = self.sql(e, comment=False) -1891 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" -1892 -1893 if self.pretty: -1894 if self._leading_comma: -1895 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") -1896 else: -1897 result_sqls.append( -1898 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" -1899 ) -1900 else: -1901 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") -1902 -1903 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) -1904 return self.indent(result_sql, skip_first=False) if indent else result_sql +1884 def format_time(self, expression: exp.Expression) -> t.Optional[str]: +1885 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) +1886 +1887 def expressions( +1888 self, +1889 expression: exp.Expression, +1890 key: t.Optional[str] = None, +1891 flat: bool = False, +1892 indent: bool = True, +1893 sep: str = ", ", +1894 prefix: str = "", +1895 ) -> str: +1896 expressions = expression.args.get(key or "expressions") +1897 +1898 if not expressions: +1899 return "" +1900 +1901 if flat: +1902 return sep.join(self.sql(e) for e in expressions) +1903 +1904 num_sqls = len(expressions) 1905 -1906 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: -1907 flat = flat or isinstance(expression.parent, exp.Properties) -1908 expressions_sql = self.expressions(expression, flat=flat) -1909 if flat: -1910 return f"{op} {expressions_sql}" -1911 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" -1912 -1913 def naked_property(self, expression: exp.Property) -> str: -1914 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) -1915 if not property_name: -1916 self.unsupported(f"Unsupported property {expression.__class__.__name__}") -1917 return f"{property_name} {self.sql(expression, 'this')}" -1918 -1919 def set_operation(self, expression: exp.Expression, op: str) -> str: -1920 this = self.sql(expression, "this") -1921 op = self.seg(op) -1922 return self.query_modifiers( -1923 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" -1924 ) -1925 -1926 def tag_sql(self, expression: exp.Tag) -> str: -1927 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" -1928 -1929 def token_sql(self, token_type: TokenType) -> str: -1930 return self.TOKEN_MAPPING.get(token_type, token_type.name) -1931 -1932 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: -1933 this = self.sql(expression, "this") -1934 expressions = self.no_identify(self.expressions, expression) -1935 expressions = ( -1936 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" -1937 ) -1938 return f"{this}{expressions}" -1939 -1940 def joinhint_sql(self, expression: exp.JoinHint) -> str: -1941 this = self.sql(expression, "this") -1942 expressions = self.expressions(expression, flat=True) -1943 return f"{this}({expressions})" -1944 -1945 def kwarg_sql(self, expression: exp.Kwarg) -> str: -1946 return self.binary(expression, "=>") +1906 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly +1907 pad = " " * self.pad +1908 stripped_sep = sep.strip() +1909 +1910 result_sqls = [] +1911 for i, e in enumerate(expressions): +1912 sql = self.sql(e, comment=False) +1913 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" +1914 +1915 if self.pretty: +1916 if self._leading_comma: +1917 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") +1918 else: +1919 result_sqls.append( +1920 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" +1921 ) +1922 else: +1923 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") +1924 +1925 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) +1926 return self.indent(result_sql, skip_first=False) if indent else result_sql +1927 +1928 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: +1929 flat = flat or isinstance(expression.parent, exp.Properties) +1930 expressions_sql = self.expressions(expression, flat=flat) +1931 if flat: +1932 return f"{op} {expressions_sql}" +1933 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" +1934 +1935 def naked_property(self, expression: exp.Property) -> str: +1936 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) +1937 if not property_name: +1938 self.unsupported(f"Unsupported property {expression.__class__.__name__}") +1939 return f"{property_name} {self.sql(expression, 'this')}" +1940 +1941 def set_operation(self, expression: exp.Expression, op: str) -> str: +1942 this = self.sql(expression, "this") +1943 op = self.seg(op) +1944 return self.query_modifiers( +1945 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" +1946 ) 1947 -1948 def when_sql(self, expression: exp.When) -> str: -1949 this = self.sql(expression, "this") -1950 then_expression = expression.args.get("then") -1951 if isinstance(then_expression, exp.Insert): -1952 then = f"INSERT {self.sql(then_expression, 'this')}" -1953 if "expression" in then_expression.args: -1954 then += f" VALUES {self.sql(then_expression, 'expression')}" -1955 elif isinstance(then_expression, exp.Update): -1956 if isinstance(then_expression.args.get("expressions"), exp.Star): -1957 then = f"UPDATE {self.sql(then_expression, 'expressions')}" -1958 else: -1959 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" -1960 else: -1961 then = self.sql(then_expression) -1962 return f"WHEN {this} THEN {then}" -1963 -1964 def merge_sql(self, expression: exp.Merge) -> str: -1965 this = self.sql(expression, "this") -1966 using = f"USING {self.sql(expression, 'using')}" -1967 on = f"ON {self.sql(expression, 'on')}" -1968 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" +1948 def tag_sql(self, expression: exp.Tag) -> str: +1949 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" +1950 +1951 def token_sql(self, token_type: TokenType) -> str: +1952 return self.TOKEN_MAPPING.get(token_type, token_type.name) +1953 +1954 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: +1955 this = self.sql(expression, "this") +1956 expressions = self.no_identify(self.expressions, expression) +1957 expressions = ( +1958 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" +1959 ) +1960 return f"{this}{expressions}" +1961 +1962 def joinhint_sql(self, expression: exp.JoinHint) -> str: +1963 this = self.sql(expression, "this") +1964 expressions = self.expressions(expression, flat=True) +1965 return f"{this}({expressions})" +1966 +1967 def kwarg_sql(self, expression: exp.Kwarg) -> str: +1968 return self.binary(expression, "=>") +1969 +1970 def when_sql(self, expression: exp.When) -> str: +1971 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" +1972 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" +1973 condition = self.sql(expression, "condition") +1974 condition = f" AND {condition}" if condition else "" +1975 +1976 then_expression = expression.args.get("then") +1977 if isinstance(then_expression, exp.Insert): +1978 then = f"INSERT {self.sql(then_expression, 'this')}" +1979 if "expression" in then_expression.args: +1980 then += f" VALUES {self.sql(then_expression, 'expression')}" +1981 elif isinstance(then_expression, exp.Update): +1982 if isinstance(then_expression.args.get("expressions"), exp.Star): +1983 then = f"UPDATE {self.sql(then_expression, 'expressions')}" +1984 else: +1985 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" +1986 else: +1987 then = self.sql(then_expression) +1988 return f"WHEN {matched}{source}{condition} THEN {then}" +1989 +1990 def merge_sql(self, expression: exp.Merge) -> str: +1991 this = self.sql(expression, "this") +1992 using = f"USING {self.sql(expression, 'using')}" +1993 on = f"ON {self.sql(expression, 'on')}" +1994 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" @@ -4682,60 +4740,60 @@ Default: True -
    214    def __init__(
    -215        self,
    -216        time_mapping=None,
    -217        time_trie=None,
    -218        pretty=None,
    -219        quote_start=None,
    -220        quote_end=None,
    -221        identifier_start=None,
    -222        identifier_end=None,
    -223        identify=False,
    -224        normalize=False,
    -225        string_escape=None,
    -226        identifier_escape=None,
    -227        pad=2,
    -228        indent=2,
    -229        index_offset=0,
    -230        unnest_column_only=False,
    -231        alias_post_tablesample=False,
    -232        normalize_functions="upper",
    -233        unsupported_level=ErrorLevel.WARN,
    -234        null_ordering=None,
    -235        max_unsupported=3,
    -236        leading_comma=False,
    -237        max_text_width=80,
    -238        comments=True,
    -239    ):
    -240        import sqlglot
    -241
    -242        self.time_mapping = time_mapping or {}
    -243        self.time_trie = time_trie
    -244        self.pretty = pretty if pretty is not None else sqlglot.pretty
    -245        self.quote_start = quote_start or "'"
    -246        self.quote_end = quote_end or "'"
    -247        self.identifier_start = identifier_start or '"'
    -248        self.identifier_end = identifier_end or '"'
    -249        self.identify = identify
    -250        self.normalize = normalize
    -251        self.string_escape = string_escape or "'"
    -252        self.identifier_escape = identifier_escape or '"'
    -253        self.pad = pad
    -254        self.index_offset = index_offset
    -255        self.unnest_column_only = unnest_column_only
    -256        self.alias_post_tablesample = alias_post_tablesample
    -257        self.normalize_functions = normalize_functions
    -258        self.unsupported_level = unsupported_level
    -259        self.unsupported_messages = []
    -260        self.max_unsupported = max_unsupported
    -261        self.null_ordering = null_ordering
    -262        self._indent = indent
    -263        self._escaped_quote_end = self.string_escape + self.quote_end
    -264        self._escaped_identifier_end = self.identifier_escape + self.identifier_end
    -265        self._leading_comma = leading_comma
    -266        self._max_text_width = max_text_width
    -267        self._comments = comments
    +            
    220    def __init__(
    +221        self,
    +222        time_mapping=None,
    +223        time_trie=None,
    +224        pretty=None,
    +225        quote_start=None,
    +226        quote_end=None,
    +227        identifier_start=None,
    +228        identifier_end=None,
    +229        identify=False,
    +230        normalize=False,
    +231        string_escape=None,
    +232        identifier_escape=None,
    +233        pad=2,
    +234        indent=2,
    +235        index_offset=0,
    +236        unnest_column_only=False,
    +237        alias_post_tablesample=False,
    +238        normalize_functions="upper",
    +239        unsupported_level=ErrorLevel.WARN,
    +240        null_ordering=None,
    +241        max_unsupported=3,
    +242        leading_comma=False,
    +243        max_text_width=80,
    +244        comments=True,
    +245    ):
    +246        import sqlglot
    +247
    +248        self.time_mapping = time_mapping or {}
    +249        self.time_trie = time_trie
    +250        self.pretty = pretty if pretty is not None else sqlglot.pretty
    +251        self.quote_start = quote_start or "'"
    +252        self.quote_end = quote_end or "'"
    +253        self.identifier_start = identifier_start or '"'
    +254        self.identifier_end = identifier_end or '"'
    +255        self.identify = identify
    +256        self.normalize = normalize
    +257        self.string_escape = string_escape or "'"
    +258        self.identifier_escape = identifier_escape or '"'
    +259        self.pad = pad
    +260        self.index_offset = index_offset
    +261        self.unnest_column_only = unnest_column_only
    +262        self.alias_post_tablesample = alias_post_tablesample
    +263        self.normalize_functions = normalize_functions
    +264        self.unsupported_level = unsupported_level
    +265        self.unsupported_messages = []
    +266        self.max_unsupported = max_unsupported
    +267        self.null_ordering = null_ordering
    +268        self._indent = indent
    +269        self._escaped_quote_end = self.string_escape + self.quote_end
    +270        self._escaped_identifier_end = self.identifier_escape + self.identifier_end
    +271        self._leading_comma = leading_comma
    +272        self._max_text_width = max_text_width
    +273        self._comments = comments
     
    @@ -4753,31 +4811,31 @@ Default: True
    -
    269    def generate(self, expression: t.Optional[exp.Expression]) -> str:
    -270        """
    -271        Generates a SQL string by interpreting the given syntax tree.
    -272
    -273        Args
    -274            expression: the syntax tree.
    -275
    -276        Returns
    -277            the SQL string.
    -278        """
    -279        self.unsupported_messages = []
    -280        sql = self.sql(expression).strip()
    +            
    275    def generate(self, expression: t.Optional[exp.Expression]) -> str:
    +276        """
    +277        Generates a SQL string by interpreting the given syntax tree.
    +278
    +279        Args
    +280            expression: the syntax tree.
     281
    -282        if self.unsupported_level == ErrorLevel.IGNORE:
    -283            return sql
    -284
    -285        if self.unsupported_level == ErrorLevel.WARN:
    -286            for msg in self.unsupported_messages:
    -287                logger.warning(msg)
    -288        elif self.unsupported_level == ErrorLevel.RAISE and self.unsupported_messages:
    -289            raise UnsupportedError(concat_messages(self.unsupported_messages, self.max_unsupported))
    +282        Returns
    +283            the SQL string.
    +284        """
    +285        self.unsupported_messages = []
    +286        sql = self.sql(expression).strip()
    +287
    +288        if self.unsupported_level == ErrorLevel.IGNORE:
    +289            return sql
     290
    -291        if self.pretty:
    -292            sql = sql.replace(self.SENTINEL_LINE_BREAK, "\n")
    -293        return sql
    +291        if self.unsupported_level == ErrorLevel.WARN:
    +292            for msg in self.unsupported_messages:
    +293                logger.warning(msg)
    +294        elif self.unsupported_level == ErrorLevel.RAISE and self.unsupported_messages:
    +295            raise UnsupportedError(concat_messages(self.unsupported_messages, self.max_unsupported))
    +296
    +297        if self.pretty:
    +298            sql = sql.replace(self.SENTINEL_LINE_BREAK, "\n")
    +299        return sql
     
    @@ -4803,10 +4861,10 @@ Default: True
    -
    295    def unsupported(self, message: str) -> None:
    -296        if self.unsupported_level == ErrorLevel.IMMEDIATE:
    -297            raise UnsupportedError(message)
    -298        self.unsupported_messages.append(message)
    +            
    301    def unsupported(self, message: str) -> None:
    +302        if self.unsupported_level == ErrorLevel.IMMEDIATE:
    +303            raise UnsupportedError(message)
    +304        self.unsupported_messages.append(message)
     
    @@ -4824,8 +4882,8 @@ Default: True
    -
    300    def sep(self, sep: str = " ") -> str:
    -301        return f"{sep.strip()}\n" if self.pretty else sep
    +            
    306    def sep(self, sep: str = " ") -> str:
    +307        return f"{sep.strip()}\n" if self.pretty else sep
     
    @@ -4843,8 +4901,8 @@ Default: True
    -
    303    def seg(self, sql: str, sep: str = " ") -> str:
    -304        return f"{self.sep(sep)}{sql}"
    +            
    309    def seg(self, sql: str, sep: str = " ") -> str:
    +310        return f"{self.sep(sep)}{sql}"
     
    @@ -4862,10 +4920,10 @@ Default: True
    -
    306    def pad_comment(self, comment: str) -> str:
    -307        comment = " " + comment if comment[0].strip() else comment
    -308        comment = comment + " " if comment[-1].strip() else comment
    -309        return comment
    +            
    312    def pad_comment(self, comment: str) -> str:
    +313        comment = " " + comment if comment[0].strip() else comment
    +314        comment = comment + " " if comment[-1].strip() else comment
    +315        return comment
     
    @@ -4883,24 +4941,24 @@ Default: True
    -
    311    def maybe_comment(self, sql: str, expression: exp.Expression) -> str:
    -312        comments = expression.comments if self._comments else None
    -313
    -314        if not comments:
    -315            return sql
    -316
    -317        sep = "\n" if self.pretty else " "
    -318        comments_sql = sep.join(
    -319            f"/*{self.pad_comment(comment)}*/" for comment in comments if comment
    -320        )
    -321
    -322        if not comments_sql:
    -323            return sql
    -324
    -325        if isinstance(expression, self.WITH_SEPARATED_COMMENTS):
    -326            return f"{comments_sql}{self.sep()}{sql}"
    +            
    317    def maybe_comment(self, sql: str, expression: exp.Expression) -> str:
    +318        comments = expression.comments if self._comments else None
    +319
    +320        if not comments:
    +321            return sql
    +322
    +323        sep = "\n" if self.pretty else " "
    +324        comments_sql = sep.join(
    +325            f"/*{self.pad_comment(comment)}*/" for comment in comments if comment
    +326        )
     327
    -328        return f"{sql} {comments_sql}"
    +328        if not comments_sql:
    +329            return sql
    +330
    +331        if isinstance(expression, self.WITH_SEPARATED_COMMENTS):
    +332            return f"{comments_sql}{self.sep()}{sql}"
    +333
    +334        return f"{sql} {comments_sql}"
     
    @@ -4918,15 +4976,15 @@ Default: True
    -
    330    def wrap(self, expression: exp.Expression | str) -> str:
    -331        this_sql = self.indent(
    -332            self.sql(expression)
    -333            if isinstance(expression, (exp.Select, exp.Union))
    -334            else self.sql(expression, "this"),
    -335            level=1,
    -336            pad=0,
    -337        )
    -338        return f"({self.sep('')}{this_sql}{self.seg(')', sep='')}"
    +            
    336    def wrap(self, expression: exp.Expression | str) -> str:
    +337        this_sql = self.indent(
    +338            self.sql(expression)
    +339            if isinstance(expression, (exp.Select, exp.Union))
    +340            else self.sql(expression, "this"),
    +341            level=1,
    +342            pad=0,
    +343        )
    +344        return f"({self.sep('')}{this_sql}{self.seg(')', sep='')}"
     
    @@ -4944,12 +5002,12 @@ Default: True
    -
    340    def no_identify(self, func: t.Callable[..., str], *args, **kwargs) -> str:
    -341        original = self.identify
    -342        self.identify = False
    -343        result = func(*args, **kwargs)
    -344        self.identify = original
    -345        return result
    +            
    346    def no_identify(self, func: t.Callable[..., str], *args, **kwargs) -> str:
    +347        original = self.identify
    +348        self.identify = False
    +349        result = func(*args, **kwargs)
    +350        self.identify = original
    +351        return result
     
    @@ -4967,12 +5025,12 @@ Default: True
    -
    347    def normalize_func(self, name: str) -> str:
    -348        if self.normalize_functions == "upper":
    -349            return name.upper()
    -350        if self.normalize_functions == "lower":
    -351            return name.lower()
    -352        return name
    +            
    353    def normalize_func(self, name: str) -> str:
    +354        if self.normalize_functions == "upper":
    +355            return name.upper()
    +356        if self.normalize_functions == "lower":
    +357            return name.lower()
    +358        return name
     
    @@ -4990,26 +5048,26 @@ Default: True
    -
    354    def indent(
    -355        self,
    -356        sql: str,
    -357        level: int = 0,
    -358        pad: t.Optional[int] = None,
    -359        skip_first: bool = False,
    -360        skip_last: bool = False,
    -361    ) -> str:
    -362        if not self.pretty:
    -363            return sql
    -364
    -365        pad = self.pad if pad is None else pad
    -366        lines = sql.split("\n")
    -367
    -368        return "\n".join(
    -369            line
    -370            if (skip_first and i == 0) or (skip_last and i == len(lines) - 1)
    -371            else f"{' ' * (level * self._indent + pad)}{line}"
    -372            for i, line in enumerate(lines)
    -373        )
    +            
    360    def indent(
    +361        self,
    +362        sql: str,
    +363        level: int = 0,
    +364        pad: t.Optional[int] = None,
    +365        skip_first: bool = False,
    +366        skip_last: bool = False,
    +367    ) -> str:
    +368        if not self.pretty:
    +369            return sql
    +370
    +371        pad = self.pad if pad is None else pad
    +372        lines = sql.split("\n")
    +373
    +374        return "\n".join(
    +375            line
    +376            if (skip_first and i == 0) or (skip_last and i == len(lines) - 1)
    +377            else f"{' ' * (level * self._indent + pad)}{line}"
    +378            for i, line in enumerate(lines)
    +379        )
     
    @@ -5027,42 +5085,42 @@ Default: True
    -
    375    def sql(
    -376        self,
    -377        expression: t.Optional[str | exp.Expression],
    -378        key: t.Optional[str] = None,
    -379        comment: bool = True,
    -380    ) -> str:
    -381        if not expression:
    -382            return ""
    -383
    -384        if isinstance(expression, str):
    -385            return expression
    -386
    -387        if key:
    -388            return self.sql(expression.args.get(key))
    +            
    381    def sql(
    +382        self,
    +383        expression: t.Optional[str | exp.Expression],
    +384        key: t.Optional[str] = None,
    +385        comment: bool = True,
    +386    ) -> str:
    +387        if not expression:
    +388            return ""
     389
    -390        transform = self.TRANSFORMS.get(expression.__class__)
    -391
    -392        if callable(transform):
    -393            sql = transform(self, expression)
    -394        elif transform:
    -395            sql = transform
    -396        elif isinstance(expression, exp.Expression):
    -397            exp_handler_name = f"{expression.key}_sql"
    -398
    -399            if hasattr(self, exp_handler_name):
    -400                sql = getattr(self, exp_handler_name)(expression)
    -401            elif isinstance(expression, exp.Func):
    -402                sql = self.function_fallback_sql(expression)
    -403            elif isinstance(expression, exp.Property):
    -404                sql = self.property_sql(expression)
    -405            else:
    -406                raise ValueError(f"Unsupported expression type {expression.__class__.__name__}")
    -407        else:
    -408            raise ValueError(f"Expected an Expression. Received {type(expression)}: {expression}")
    -409
    -410        return self.maybe_comment(sql, expression) if self._comments and comment else sql
    +390        if isinstance(expression, str):
    +391            return expression
    +392
    +393        if key:
    +394            return self.sql(expression.args.get(key))
    +395
    +396        transform = self.TRANSFORMS.get(expression.__class__)
    +397
    +398        if callable(transform):
    +399            sql = transform(self, expression)
    +400        elif transform:
    +401            sql = transform
    +402        elif isinstance(expression, exp.Expression):
    +403            exp_handler_name = f"{expression.key}_sql"
    +404
    +405            if hasattr(self, exp_handler_name):
    +406                sql = getattr(self, exp_handler_name)(expression)
    +407            elif isinstance(expression, exp.Func):
    +408                sql = self.function_fallback_sql(expression)
    +409            elif isinstance(expression, exp.Property):
    +410                sql = self.property_sql(expression)
    +411            else:
    +412                raise ValueError(f"Unsupported expression type {expression.__class__.__name__}")
    +413        else:
    +414            raise ValueError(f"Expected an Expression. Received {type(expression)}: {expression}")
    +415
    +416        return self.maybe_comment(sql, expression) if self._comments and comment else sql
     
    @@ -5080,10 +5138,10 @@ Default: True
    -
    412    def uncache_sql(self, expression: exp.Uncache) -> str:
    -413        table = self.sql(expression, "this")
    -414        exists_sql = " IF EXISTS" if expression.args.get("exists") else ""
    -415        return f"UNCACHE TABLE{exists_sql} {table}"
    +            
    418    def uncache_sql(self, expression: exp.Uncache) -> str:
    +419        table = self.sql(expression, "this")
    +420        exists_sql = " IF EXISTS" if expression.args.get("exists") else ""
    +421        return f"UNCACHE TABLE{exists_sql} {table}"
     
    @@ -5101,15 +5159,15 @@ Default: True
    -
    417    def cache_sql(self, expression: exp.Cache) -> str:
    -418        lazy = " LAZY" if expression.args.get("lazy") else ""
    -419        table = self.sql(expression, "this")
    -420        options = expression.args.get("options")
    -421        options = f" OPTIONS({self.sql(options[0])} = {self.sql(options[1])})" if options else ""
    -422        sql = self.sql(expression, "expression")
    -423        sql = f" AS{self.sep()}{sql}" if sql else ""
    -424        sql = f"CACHE{lazy} TABLE {table}{options}{sql}"
    -425        return self.prepend_ctes(expression, sql)
    +            
    423    def cache_sql(self, expression: exp.Cache) -> str:
    +424        lazy = " LAZY" if expression.args.get("lazy") else ""
    +425        table = self.sql(expression, "this")
    +426        options = expression.args.get("options")
    +427        options = f" OPTIONS({self.sql(options[0])} = {self.sql(options[1])})" if options else ""
    +428        sql = self.sql(expression, "expression")
    +429        sql = f" AS{self.sep()}{sql}" if sql else ""
    +430        sql = f"CACHE{lazy} TABLE {table}{options}{sql}"
    +431        return self.prepend_ctes(expression, sql)
     
    @@ -5127,11 +5185,11 @@ Default: True
    -
    427    def characterset_sql(self, expression: exp.CharacterSet) -> str:
    -428        if isinstance(expression.parent, exp.Cast):
    -429            return f"CHAR CHARACTER SET {self.sql(expression, 'this')}"
    -430        default = "DEFAULT " if expression.args.get("default") else ""
    -431        return f"{default}CHARACTER SET={self.sql(expression, 'this')}"
    +            
    433    def characterset_sql(self, expression: exp.CharacterSet) -> str:
    +434        if isinstance(expression.parent, exp.Cast):
    +435            return f"CHAR CHARACTER SET {self.sql(expression, 'this')}"
    +436        default = "DEFAULT " if expression.args.get("default") else ""
    +437        return f"{default}CHARACTER SET={self.sql(expression, 'this')}"
     
    @@ -5149,17 +5207,17 @@ Default: True
    -
    433    def column_sql(self, expression: exp.Column) -> str:
    -434        return ".".join(
    -435            self.sql(part)
    -436            for part in (
    -437                expression.args.get("catalog"),
    -438                expression.args.get("db"),
    -439                expression.args.get("table"),
    -440                expression.args.get("this"),
    -441            )
    -442            if part
    -443        )
    +            
    439    def column_sql(self, expression: exp.Column) -> str:
    +440        return ".".join(
    +441            self.sql(part)
    +442            for part in (
    +443                expression.args.get("catalog"),
    +444                expression.args.get("db"),
    +445                expression.args.get("table"),
    +446                expression.args.get("this"),
    +447            )
    +448            if part
    +449        )
     
    @@ -5177,15 +5235,15 @@ Default: True
    -
    445    def columndef_sql(self, expression: exp.ColumnDef) -> str:
    -446        column = self.sql(expression, "this")
    -447        kind = self.sql(expression, "kind")
    -448        constraints = self.expressions(expression, key="constraints", sep=" ", flat=True)
    -449        exists = "IF NOT EXISTS " if expression.args.get("exists") else ""
    -450        kind = f" {kind}" if kind else ""
    -451        constraints = f" {constraints}" if constraints else ""
    -452
    -453        return f"{exists}{column}{kind}{constraints}"
    +            
    451    def columndef_sql(self, expression: exp.ColumnDef) -> str:
    +452        column = self.sql(expression, "this")
    +453        kind = self.sql(expression, "kind")
    +454        constraints = self.expressions(expression, key="constraints", sep=" ", flat=True)
    +455        exists = "IF NOT EXISTS " if expression.args.get("exists") else ""
    +456        kind = f" {kind}" if kind else ""
    +457        constraints = f" {constraints}" if constraints else ""
    +458
    +459        return f"{exists}{column}{kind}{constraints}"
     
    @@ -5203,10 +5261,10 @@ Default: True
    -
    455    def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str:
    -456        this = self.sql(expression, "this")
    -457        kind_sql = self.sql(expression, "kind")
    -458        return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql
    +            
    461    def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str:
    +462        this = self.sql(expression, "this")
    +463        kind_sql = self.sql(expression, "kind")
    +464        return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql
     
    @@ -5224,8 +5282,8 @@ Default: True
    -
    460    def autoincrementcolumnconstraint_sql(self, _) -> str:
    -461        return self.token_sql(TokenType.AUTO_INCREMENT)
    +            
    466    def autoincrementcolumnconstraint_sql(self, _) -> str:
    +467        return self.token_sql(TokenType.AUTO_INCREMENT)
     
    @@ -5243,13 +5301,13 @@ Default: True
    -
    463    def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str:
    -464        if isinstance(expression.this, list):
    -465            this = self.wrap(self.expressions(expression, key="this", flat=True))
    -466        else:
    -467            this = self.sql(expression, "this")
    -468
    -469        return f"COMPRESS {this}"
    +            
    469    def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str:
    +470        if isinstance(expression.this, list):
    +471            this = self.wrap(self.expressions(expression, key="this", flat=True))
    +472        else:
    +473            this = self.sql(expression, "this")
    +474
    +475        return f"COMPRESS {this}"
     
    @@ -5267,30 +5325,30 @@ Default: True
    -
    471    def generatedasidentitycolumnconstraint_sql(
    -472        self, expression: exp.GeneratedAsIdentityColumnConstraint
    -473    ) -> str:
    -474        this = ""
    -475        if expression.this is not None:
    -476            this = " ALWAYS " if expression.this else " BY DEFAULT "
    -477        start = expression.args.get("start")
    -478        start = f"START WITH {start}" if start else ""
    -479        increment = expression.args.get("increment")
    -480        increment = f" INCREMENT BY {increment}" if increment else ""
    -481        minvalue = expression.args.get("minvalue")
    -482        minvalue = f" MINVALUE {minvalue}" if minvalue else ""
    -483        maxvalue = expression.args.get("maxvalue")
    -484        maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else ""
    -485        cycle = expression.args.get("cycle")
    -486        cycle_sql = ""
    -487        if cycle is not None:
    -488            cycle_sql = f"{' NO' if not cycle else ''} CYCLE"
    -489            cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql
    -490        sequence_opts = ""
    -491        if start or increment or cycle_sql:
    -492            sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}"
    -493            sequence_opts = f" ({sequence_opts.strip()})"
    -494        return f"GENERATED{this}AS IDENTITY{sequence_opts}"
    +            
    477    def generatedasidentitycolumnconstraint_sql(
    +478        self, expression: exp.GeneratedAsIdentityColumnConstraint
    +479    ) -> str:
    +480        this = ""
    +481        if expression.this is not None:
    +482            this = " ALWAYS " if expression.this else " BY DEFAULT "
    +483        start = expression.args.get("start")
    +484        start = f"START WITH {start}" if start else ""
    +485        increment = expression.args.get("increment")
    +486        increment = f" INCREMENT BY {increment}" if increment else ""
    +487        minvalue = expression.args.get("minvalue")
    +488        minvalue = f" MINVALUE {minvalue}" if minvalue else ""
    +489        maxvalue = expression.args.get("maxvalue")
    +490        maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else ""
    +491        cycle = expression.args.get("cycle")
    +492        cycle_sql = ""
    +493        if cycle is not None:
    +494            cycle_sql = f"{' NO' if not cycle else ''} CYCLE"
    +495            cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql
    +496        sequence_opts = ""
    +497        if start or increment or cycle_sql:
    +498            sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}"
    +499            sequence_opts = f" ({sequence_opts.strip()})"
    +500        return f"GENERATED{this}AS IDENTITY{sequence_opts}"
     
    @@ -5308,8 +5366,8 @@ Default: True
    -
    496    def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str:
    -497        return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL"
    +            
    502    def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str:
    +503        return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL"
     
    @@ -5327,11 +5385,11 @@ Default: True
    -
    499    def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str:
    -500        desc = expression.args.get("desc")
    -501        if desc is not None:
    -502            return f"PRIMARY KEY{' DESC' if desc else ' ASC'}"
    -503        return f"PRIMARY KEY"
    +            
    505    def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str:
    +506        desc = expression.args.get("desc")
    +507        if desc is not None:
    +508            return f"PRIMARY KEY{' DESC' if desc else ' ASC'}"
    +509        return f"PRIMARY KEY"
     
    @@ -5349,8 +5407,8 @@ Default: True
    -
    505    def uniquecolumnconstraint_sql(self, _) -> str:
    -506        return "UNIQUE"
    +            
    511    def uniquecolumnconstraint_sql(self, _) -> str:
    +512        return "UNIQUE"
     
    @@ -5368,121 +5426,121 @@ Default: True
    -
    508    def create_sql(self, expression: exp.Create) -> str:
    -509        kind = self.sql(expression, "kind").upper()
    -510        properties = expression.args.get("properties")
    -511        properties_exp = expression.copy()
    -512        properties_locs = self.locate_properties(properties) if properties else {}
    -513        if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get(
    -514            exp.Properties.Location.POST_WITH
    -515        ):
    -516            properties_exp.set(
    -517                "properties",
    -518                exp.Properties(
    -519                    expressions=[
    -520                        *properties_locs[exp.Properties.Location.POST_SCHEMA],
    -521                        *properties_locs[exp.Properties.Location.POST_WITH],
    -522                    ]
    -523                ),
    -524            )
    -525        if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME):
    -526            this_name = self.sql(expression.this, "this")
    -527            this_properties = self.properties(
    -528                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]),
    -529                wrapped=False,
    +            
    514    def create_sql(self, expression: exp.Create) -> str:
    +515        kind = self.sql(expression, "kind").upper()
    +516        properties = expression.args.get("properties")
    +517        properties_exp = expression.copy()
    +518        properties_locs = self.locate_properties(properties) if properties else {}
    +519        if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get(
    +520            exp.Properties.Location.POST_WITH
    +521        ):
    +522            properties_exp.set(
    +523                "properties",
    +524                exp.Properties(
    +525                    expressions=[
    +526                        *properties_locs[exp.Properties.Location.POST_SCHEMA],
    +527                        *properties_locs[exp.Properties.Location.POST_WITH],
    +528                    ]
    +529                ),
     530            )
    -531            this_schema = f"({self.expressions(expression.this)})"
    -532            this = f"{this_name}, {this_properties} {this_schema}"
    -533            properties_sql = ""
    -534        else:
    -535            this = self.sql(expression, "this")
    -536            properties_sql = self.sql(properties_exp, "properties")
    -537        begin = " BEGIN" if expression.args.get("begin") else ""
    -538        expression_sql = self.sql(expression, "expression")
    -539        if expression_sql:
    -540            expression_sql = f"{begin}{self.sep()}{expression_sql}"
    -541
    -542            if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return):
    -543                if properties_locs.get(exp.Properties.Location.POST_ALIAS):
    -544                    postalias_props_sql = self.properties(
    -545                        exp.Properties(
    -546                            expressions=properties_locs[exp.Properties.Location.POST_ALIAS]
    -547                        ),
    -548                        wrapped=False,
    -549                    )
    -550                    expression_sql = f" AS {postalias_props_sql}{expression_sql}"
    -551                else:
    -552                    expression_sql = f" AS{expression_sql}"
    -553
    -554        postindex_props_sql = ""
    -555        if properties_locs.get(exp.Properties.Location.POST_INDEX):
    -556            postindex_props_sql = self.properties(
    -557                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]),
    -558                wrapped=False,
    -559                prefix=" ",
    -560            )
    -561
    -562        indexes = expression.args.get("indexes")
    -563        if indexes:
    -564            indexes_sql: t.List[str] = []
    -565            for index in indexes:
    -566                ind_unique = " UNIQUE" if index.args.get("unique") else ""
    -567                ind_primary = " PRIMARY" if index.args.get("primary") else ""
    -568                ind_amp = " AMP" if index.args.get("amp") else ""
    -569                ind_name = f" {index.name}" if index.name else ""
    -570                ind_columns = (
    -571                    f' ({self.expressions(index, key="columns", flat=True)})'
    -572                    if index.args.get("columns")
    -573                    else ""
    -574                )
    -575                ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}"
    -576
    -577                if indexes_sql:
    -578                    indexes_sql.append(ind_sql)
    -579                else:
    -580                    indexes_sql.append(
    -581                        f"{ind_sql}{postindex_props_sql}"
    -582                        if index.args.get("primary")
    -583                        else f"{postindex_props_sql}{ind_sql}"
    -584                    )
    -585
    -586            index_sql = "".join(indexes_sql)
    -587        else:
    -588            index_sql = postindex_props_sql
    -589
    -590        replace = " OR REPLACE" if expression.args.get("replace") else ""
    -591        unique = " UNIQUE" if expression.args.get("unique") else ""
    -592        volatile = " VOLATILE" if expression.args.get("volatile") else ""
    -593
    -594        postcreate_props_sql = ""
    -595        if properties_locs.get(exp.Properties.Location.POST_CREATE):
    -596            postcreate_props_sql = self.properties(
    -597                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]),
    -598                sep=" ",
    -599                prefix=" ",
    -600                wrapped=False,
    -601            )
    -602
    -603        modifiers = "".join((replace, unique, volatile, postcreate_props_sql))
    -604
    -605        postexpression_props_sql = ""
    -606        if properties_locs.get(exp.Properties.Location.POST_EXPRESSION):
    -607            postexpression_props_sql = self.properties(
    -608                exp.Properties(
    -609                    expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION]
    -610                ),
    -611                sep=" ",
    -612                prefix=" ",
    -613                wrapped=False,
    -614            )
    -615
    -616        exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else ""
    -617        no_schema_binding = (
    -618            " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else ""
    -619        )
    -620
    -621        expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}"
    -622        return self.prepend_ctes(expression, expression_sql)
    +531        if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME):
    +532            this_name = self.sql(expression.this, "this")
    +533            this_properties = self.properties(
    +534                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]),
    +535                wrapped=False,
    +536            )
    +537            this_schema = f"({self.expressions(expression.this)})"
    +538            this = f"{this_name}, {this_properties} {this_schema}"
    +539            properties_sql = ""
    +540        else:
    +541            this = self.sql(expression, "this")
    +542            properties_sql = self.sql(properties_exp, "properties")
    +543        begin = " BEGIN" if expression.args.get("begin") else ""
    +544        expression_sql = self.sql(expression, "expression")
    +545        if expression_sql:
    +546            expression_sql = f"{begin}{self.sep()}{expression_sql}"
    +547
    +548            if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return):
    +549                if properties_locs.get(exp.Properties.Location.POST_ALIAS):
    +550                    postalias_props_sql = self.properties(
    +551                        exp.Properties(
    +552                            expressions=properties_locs[exp.Properties.Location.POST_ALIAS]
    +553                        ),
    +554                        wrapped=False,
    +555                    )
    +556                    expression_sql = f" AS {postalias_props_sql}{expression_sql}"
    +557                else:
    +558                    expression_sql = f" AS{expression_sql}"
    +559
    +560        postindex_props_sql = ""
    +561        if properties_locs.get(exp.Properties.Location.POST_INDEX):
    +562            postindex_props_sql = self.properties(
    +563                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]),
    +564                wrapped=False,
    +565                prefix=" ",
    +566            )
    +567
    +568        indexes = expression.args.get("indexes")
    +569        if indexes:
    +570            indexes_sql: t.List[str] = []
    +571            for index in indexes:
    +572                ind_unique = " UNIQUE" if index.args.get("unique") else ""
    +573                ind_primary = " PRIMARY" if index.args.get("primary") else ""
    +574                ind_amp = " AMP" if index.args.get("amp") else ""
    +575                ind_name = f" {index.name}" if index.name else ""
    +576                ind_columns = (
    +577                    f' ({self.expressions(index, key="columns", flat=True)})'
    +578                    if index.args.get("columns")
    +579                    else ""
    +580                )
    +581                ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}"
    +582
    +583                if indexes_sql:
    +584                    indexes_sql.append(ind_sql)
    +585                else:
    +586                    indexes_sql.append(
    +587                        f"{ind_sql}{postindex_props_sql}"
    +588                        if index.args.get("primary")
    +589                        else f"{postindex_props_sql}{ind_sql}"
    +590                    )
    +591
    +592            index_sql = "".join(indexes_sql)
    +593        else:
    +594            index_sql = postindex_props_sql
    +595
    +596        replace = " OR REPLACE" if expression.args.get("replace") else ""
    +597        unique = " UNIQUE" if expression.args.get("unique") else ""
    +598        volatile = " VOLATILE" if expression.args.get("volatile") else ""
    +599
    +600        postcreate_props_sql = ""
    +601        if properties_locs.get(exp.Properties.Location.POST_CREATE):
    +602            postcreate_props_sql = self.properties(
    +603                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]),
    +604                sep=" ",
    +605                prefix=" ",
    +606                wrapped=False,
    +607            )
    +608
    +609        modifiers = "".join((replace, unique, volatile, postcreate_props_sql))
    +610
    +611        postexpression_props_sql = ""
    +612        if properties_locs.get(exp.Properties.Location.POST_EXPRESSION):
    +613            postexpression_props_sql = self.properties(
    +614                exp.Properties(
    +615                    expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION]
    +616                ),
    +617                sep=" ",
    +618                prefix=" ",
    +619                wrapped=False,
    +620            )
    +621
    +622        exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else ""
    +623        no_schema_binding = (
    +624            " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else ""
    +625        )
    +626
    +627        expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}"
    +628        return self.prepend_ctes(expression, expression_sql)
     
    @@ -5500,8 +5558,8 @@ Default: True
    -
    624    def describe_sql(self, expression: exp.Describe) -> str:
    -625        return f"DESCRIBE {self.sql(expression, 'this')}"
    +            
    630    def describe_sql(self, expression: exp.Describe) -> str:
    +631        return f"DESCRIBE {self.sql(expression, 'this')}"
     
    @@ -5519,11 +5577,11 @@ Default: True
    -
    627    def prepend_ctes(self, expression: exp.Expression, sql: str) -> str:
    -628        with_ = self.sql(expression, "with")
    -629        if with_:
    -630            sql = f"{with_}{self.sep()}{sql}"
    -631        return sql
    +            
    633    def prepend_ctes(self, expression: exp.Expression, sql: str) -> str:
    +634        with_ = self.sql(expression, "with")
    +635        if with_:
    +636            sql = f"{with_}{self.sep()}{sql}"
    +637        return sql
     
    @@ -5541,11 +5599,11 @@ Default: True
    -
    633    def with_sql(self, expression: exp.With) -> str:
    -634        sql = self.expressions(expression, flat=True)
    -635        recursive = "RECURSIVE " if expression.args.get("recursive") else ""
    -636
    -637        return f"WITH {recursive}{sql}"
    +            
    639    def with_sql(self, expression: exp.With) -> str:
    +640        sql = self.expressions(expression, flat=True)
    +641        recursive = "RECURSIVE " if expression.args.get("recursive") else ""
    +642
    +643        return f"WITH {recursive}{sql}"
     
    @@ -5563,9 +5621,9 @@ Default: True
    -
    639    def cte_sql(self, expression: exp.CTE) -> str:
    -640        alias = self.sql(expression, "alias")
    -641        return f"{alias} AS {self.wrap(expression)}"
    +            
    645    def cte_sql(self, expression: exp.CTE) -> str:
    +646        alias = self.sql(expression, "alias")
    +647        return f"{alias} AS {self.wrap(expression)}"
     
    @@ -5583,11 +5641,11 @@ Default: True
    -
    643    def tablealias_sql(self, expression: exp.TableAlias) -> str:
    -644        alias = self.sql(expression, "this")
    -645        columns = self.expressions(expression, key="columns", flat=True)
    -646        columns = f"({columns})" if columns else ""
    -647        return f"{alias}{columns}"
    +            
    649    def tablealias_sql(self, expression: exp.TableAlias) -> str:
    +650        alias = self.sql(expression, "this")
    +651        columns = self.expressions(expression, key="columns", flat=True)
    +652        columns = f"({columns})" if columns else ""
    +653        return f"{alias}{columns}"
     
    @@ -5605,8 +5663,8 @@ Default: True
    -
    649    def bitstring_sql(self, expression: exp.BitString) -> str:
    -650        return self.sql(expression, "this")
    +            
    655    def bitstring_sql(self, expression: exp.BitString) -> str:
    +656        return self.sql(expression, "this")
     
    @@ -5624,8 +5682,8 @@ Default: True
    -
    652    def hexstring_sql(self, expression: exp.HexString) -> str:
    -653        return self.sql(expression, "this")
    +            
    658    def hexstring_sql(self, expression: exp.HexString) -> str:
    +659        return self.sql(expression, "this")
     
    @@ -5643,24 +5701,24 @@ Default: True
    -
    655    def datatype_sql(self, expression: exp.DataType) -> str:
    -656        type_value = expression.this
    -657        type_sql = self.TYPE_MAPPING.get(type_value, type_value.value)
    -658        nested = ""
    -659        interior = self.expressions(expression, flat=True)
    -660        values = ""
    -661        if interior:
    -662            if expression.args.get("nested"):
    -663                nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}"
    -664                if expression.args.get("values") is not None:
    -665                    delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")")
    -666                    values = (
    -667                        f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}"
    -668                    )
    -669            else:
    -670                nested = f"({interior})"
    -671
    -672        return f"{type_sql}{nested}{values}"
    +            
    661    def datatype_sql(self, expression: exp.DataType) -> str:
    +662        type_value = expression.this
    +663        type_sql = self.TYPE_MAPPING.get(type_value, type_value.value)
    +664        nested = ""
    +665        interior = self.expressions(expression, flat=True)
    +666        values = ""
    +667        if interior:
    +668            if expression.args.get("nested"):
    +669                nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}"
    +670                if expression.args.get("values") is not None:
    +671                    delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")")
    +672                    values = (
    +673                        f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}"
    +674                    )
    +675            else:
    +676                nested = f"({interior})"
    +677
    +678        return f"{type_sql}{nested}{values}"
     
    @@ -5678,11 +5736,11 @@ Default: True
    -
    674    def directory_sql(self, expression: exp.Directory) -> str:
    -675        local = "LOCAL " if expression.args.get("local") else ""
    -676        row_format = self.sql(expression, "row_format")
    -677        row_format = f" {row_format}" if row_format else ""
    -678        return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}"
    +            
    680    def directory_sql(self, expression: exp.Directory) -> str:
    +681        local = "LOCAL " if expression.args.get("local") else ""
    +682        row_format = self.sql(expression, "row_format")
    +683        row_format = f" {row_format}" if row_format else ""
    +684        return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}"
     
    @@ -5700,17 +5758,18 @@ Default: True
    -
    680    def delete_sql(self, expression: exp.Delete) -> str:
    -681        this = self.sql(expression, "this")
    -682        this = f" FROM {this}" if this else ""
    -683        using_sql = (
    -684            f" USING {self.expressions(expression, 'using', sep=', USING ')}"
    -685            if expression.args.get("using")
    -686            else ""
    -687        )
    -688        where_sql = self.sql(expression, "where")
    -689        sql = f"DELETE{this}{using_sql}{where_sql}"
    -690        return self.prepend_ctes(expression, sql)
    +            
    686    def delete_sql(self, expression: exp.Delete) -> str:
    +687        this = self.sql(expression, "this")
    +688        this = f" FROM {this}" if this else ""
    +689        using_sql = (
    +690            f" USING {self.expressions(expression, 'using', sep=', USING ')}"
    +691            if expression.args.get("using")
    +692            else ""
    +693        )
    +694        where_sql = self.sql(expression, "where")
    +695        returning = self.sql(expression, "returning")
    +696        sql = f"DELETE{this}{using_sql}{where_sql}{returning}"
    +697        return self.prepend_ctes(expression, sql)
     
    @@ -5728,14 +5787,14 @@ Default: True
    -
    692    def drop_sql(self, expression: exp.Drop) -> str:
    -693        this = self.sql(expression, "this")
    -694        kind = expression.args["kind"]
    -695        exists_sql = " IF EXISTS " if expression.args.get("exists") else " "
    -696        temporary = " TEMPORARY" if expression.args.get("temporary") else ""
    -697        materialized = " MATERIALIZED" if expression.args.get("materialized") else ""
    -698        cascade = " CASCADE" if expression.args.get("cascade") else ""
    -699        return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}"
    +            
    699    def drop_sql(self, expression: exp.Drop) -> str:
    +700        this = self.sql(expression, "this")
    +701        kind = expression.args["kind"]
    +702        exists_sql = " IF EXISTS " if expression.args.get("exists") else " "
    +703        temporary = " TEMPORARY" if expression.args.get("temporary") else ""
    +704        materialized = " MATERIALIZED" if expression.args.get("materialized") else ""
    +705        cascade = " CASCADE" if expression.args.get("cascade") else ""
    +706        return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}"
     
    @@ -5753,11 +5812,11 @@ Default: True
    -
    701    def except_sql(self, expression: exp.Except) -> str:
    -702        return self.prepend_ctes(
    -703            expression,
    -704            self.set_operation(expression, self.except_op(expression)),
    -705        )
    +            
    708    def except_sql(self, expression: exp.Except) -> str:
    +709        return self.prepend_ctes(
    +710            expression,
    +711            self.set_operation(expression, self.except_op(expression)),
    +712        )
     
    @@ -5775,8 +5834,8 @@ Default: True
    -
    707    def except_op(self, expression: exp.Except) -> str:
    -708        return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}"
    +            
    714    def except_op(self, expression: exp.Except) -> str:
    +715        return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}"
     
    @@ -5794,12 +5853,12 @@ Default: True
    -
    710    def fetch_sql(self, expression: exp.Fetch) -> str:
    -711        direction = expression.args.get("direction")
    -712        direction = f" {direction.upper()}" if direction else ""
    -713        count = expression.args.get("count")
    -714        count = f" {count}" if count else ""
    -715        return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY"
    +            
    717    def fetch_sql(self, expression: exp.Fetch) -> str:
    +718        direction = expression.args.get("direction")
    +719        direction = f" {direction.upper()}" if direction else ""
    +720        count = expression.args.get("count")
    +721        count = f" {count}" if count else ""
    +722        return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY"
     
    @@ -5817,10 +5876,10 @@ Default: True
    -
    717    def filter_sql(self, expression: exp.Filter) -> str:
    -718        this = self.sql(expression, "this")
    -719        where = self.sql(expression, "expression")[1:]  # where has a leading space
    -720        return f"{this} FILTER({where})"
    +            
    724    def filter_sql(self, expression: exp.Filter) -> str:
    +725        this = self.sql(expression, "this")
    +726        where = self.sql(expression, "expression")[1:]  # where has a leading space
    +727        return f"{this} FILTER({where})"
     
    @@ -5838,10 +5897,10 @@ Default: True
    -
    722    def hint_sql(self, expression: exp.Hint) -> str:
    -723        if self.sql(expression, "this"):
    -724            self.unsupported("Hints are not supported")
    -725        return ""
    +            
    729    def hint_sql(self, expression: exp.Hint) -> str:
    +730        if self.sql(expression, "this"):
    +731            self.unsupported("Hints are not supported")
    +732        return ""
     
    @@ -5859,11 +5918,11 @@ Default: True
    -
    727    def index_sql(self, expression: exp.Index) -> str:
    -728        this = self.sql(expression, "this")
    -729        table = self.sql(expression, "table")
    -730        columns = self.sql(expression, "columns")
    -731        return f"{this} ON {table} {columns}"
    +            
    734    def index_sql(self, expression: exp.Index) -> str:
    +735        this = self.sql(expression, "this")
    +736        table = self.sql(expression, "table")
    +737        columns = self.sql(expression, "columns")
    +738        return f"{this} ON {table} {columns}"
     
    @@ -5881,13 +5940,13 @@ Default: True
    -
    733    def identifier_sql(self, expression: exp.Identifier) -> str:
    -734        text = expression.name
    -735        text = text.lower() if self.normalize else text
    -736        text = text.replace(self.identifier_end, self._escaped_identifier_end)
    -737        if expression.args.get("quoted") or self.identify:
    -738            text = f"{self.identifier_start}{text}{self.identifier_end}"
    -739        return text
    +            
    740    def identifier_sql(self, expression: exp.Identifier) -> str:
    +741        text = expression.name
    +742        text = text.lower() if self.normalize else text
    +743        text = text.replace(self.identifier_end, self._escaped_identifier_end)
    +744        if expression.args.get("quoted") or self.identify:
    +745            text = f"{self.identifier_start}{text}{self.identifier_end}"
    +746        return text
     
    @@ -5905,8 +5964,8 @@ Default: True
    -
    741    def national_sql(self, expression: exp.National) -> str:
    -742        return f"N{self.sql(expression, 'this')}"
    +            
    748    def national_sql(self, expression: exp.National) -> str:
    +749        return f"N{self.sql(expression, 'this')}"
     
    @@ -5924,8 +5983,8 @@ Default: True
    -
    744    def partition_sql(self, expression: exp.Partition) -> str:
    -745        return f"PARTITION({self.expressions(expression)})"
    +            
    751    def partition_sql(self, expression: exp.Partition) -> str:
    +752        return f"PARTITION({self.expressions(expression)})"
     
    @@ -5943,20 +6002,20 @@ Default: True
    -
    747    def properties_sql(self, expression: exp.Properties) -> str:
    -748        root_properties = []
    -749        with_properties = []
    -750
    -751        for p in expression.expressions:
    -752            p_loc = self.PROPERTIES_LOCATION[p.__class__]
    -753            if p_loc == exp.Properties.Location.POST_WITH:
    -754                with_properties.append(p)
    -755            elif p_loc == exp.Properties.Location.POST_SCHEMA:
    -756                root_properties.append(p)
    +            
    754    def properties_sql(self, expression: exp.Properties) -> str:
    +755        root_properties = []
    +756        with_properties = []
     757
    -758        return self.root_properties(
    -759            exp.Properties(expressions=root_properties)
    -760        ) + self.with_properties(exp.Properties(expressions=with_properties))
    +758        for p in expression.expressions:
    +759            p_loc = self.PROPERTIES_LOCATION[p.__class__]
    +760            if p_loc == exp.Properties.Location.POST_WITH:
    +761                with_properties.append(p)
    +762            elif p_loc == exp.Properties.Location.POST_SCHEMA:
    +763                root_properties.append(p)
    +764
    +765        return self.root_properties(
    +766            exp.Properties(expressions=root_properties)
    +767        ) + self.with_properties(exp.Properties(expressions=with_properties))
     
    @@ -5974,10 +6033,10 @@ Default: True
    -
    762    def root_properties(self, properties: exp.Properties) -> str:
    -763        if properties.expressions:
    -764            return self.sep() + self.expressions(properties, indent=False, sep=" ")
    -765        return ""
    +            
    769    def root_properties(self, properties: exp.Properties) -> str:
    +770        if properties.expressions:
    +771            return self.sep() + self.expressions(properties, indent=False, sep=" ")
    +772        return ""
     
    @@ -5995,19 +6054,19 @@ Default: True
    -
    767    def properties(
    -768        self,
    -769        properties: exp.Properties,
    -770        prefix: str = "",
    -771        sep: str = ", ",
    -772        suffix: str = "",
    -773        wrapped: bool = True,
    -774    ) -> str:
    -775        if properties.expressions:
    -776            expressions = self.expressions(properties, sep=sep, indent=False)
    -777            expressions = self.wrap(expressions) if wrapped else expressions
    -778            return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}"
    -779        return ""
    +            
    774    def properties(
    +775        self,
    +776        properties: exp.Properties,
    +777        prefix: str = "",
    +778        sep: str = ", ",
    +779        suffix: str = "",
    +780        wrapped: bool = True,
    +781    ) -> str:
    +782        if properties.expressions:
    +783            expressions = self.expressions(properties, sep=sep, indent=False)
    +784            expressions = self.wrap(expressions) if wrapped else expressions
    +785            return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}"
    +786        return ""
     
    @@ -6025,8 +6084,8 @@ Default: True
    -
    781    def with_properties(self, properties: exp.Properties) -> str:
    -782        return self.properties(properties, prefix=self.seg("WITH"))
    +            
    788    def with_properties(self, properties: exp.Properties) -> str:
    +789        return self.properties(properties, prefix=self.seg("WITH"))
     
    @@ -6044,33 +6103,33 @@ Default: True
    -
    784    def locate_properties(
    -785        self, properties: exp.Properties
    -786    ) -> t.Dict[exp.Properties.Location, list[exp.Property]]:
    -787        properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = {
    -788            key: [] for key in exp.Properties.Location
    -789        }
    -790
    -791        for p in properties.expressions:
    -792            p_loc = self.PROPERTIES_LOCATION[p.__class__]
    -793            if p_loc == exp.Properties.Location.POST_NAME:
    -794                properties_locs[exp.Properties.Location.POST_NAME].append(p)
    -795            elif p_loc == exp.Properties.Location.POST_INDEX:
    -796                properties_locs[exp.Properties.Location.POST_INDEX].append(p)
    -797            elif p_loc == exp.Properties.Location.POST_SCHEMA:
    -798                properties_locs[exp.Properties.Location.POST_SCHEMA].append(p)
    -799            elif p_loc == exp.Properties.Location.POST_WITH:
    -800                properties_locs[exp.Properties.Location.POST_WITH].append(p)
    -801            elif p_loc == exp.Properties.Location.POST_CREATE:
    -802                properties_locs[exp.Properties.Location.POST_CREATE].append(p)
    -803            elif p_loc == exp.Properties.Location.POST_ALIAS:
    -804                properties_locs[exp.Properties.Location.POST_ALIAS].append(p)
    -805            elif p_loc == exp.Properties.Location.POST_EXPRESSION:
    -806                properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p)
    -807            elif p_loc == exp.Properties.Location.UNSUPPORTED:
    -808                self.unsupported(f"Unsupported property {p.key}")
    -809
    -810        return properties_locs
    +            
    791    def locate_properties(
    +792        self, properties: exp.Properties
    +793    ) -> t.Dict[exp.Properties.Location, list[exp.Property]]:
    +794        properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = {
    +795            key: [] for key in exp.Properties.Location
    +796        }
    +797
    +798        for p in properties.expressions:
    +799            p_loc = self.PROPERTIES_LOCATION[p.__class__]
    +800            if p_loc == exp.Properties.Location.POST_NAME:
    +801                properties_locs[exp.Properties.Location.POST_NAME].append(p)
    +802            elif p_loc == exp.Properties.Location.POST_INDEX:
    +803                properties_locs[exp.Properties.Location.POST_INDEX].append(p)
    +804            elif p_loc == exp.Properties.Location.POST_SCHEMA:
    +805                properties_locs[exp.Properties.Location.POST_SCHEMA].append(p)
    +806            elif p_loc == exp.Properties.Location.POST_WITH:
    +807                properties_locs[exp.Properties.Location.POST_WITH].append(p)
    +808            elif p_loc == exp.Properties.Location.POST_CREATE:
    +809                properties_locs[exp.Properties.Location.POST_CREATE].append(p)
    +810            elif p_loc == exp.Properties.Location.POST_ALIAS:
    +811                properties_locs[exp.Properties.Location.POST_ALIAS].append(p)
    +812            elif p_loc == exp.Properties.Location.POST_EXPRESSION:
    +813                properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p)
    +814            elif p_loc == exp.Properties.Location.UNSUPPORTED:
    +815                self.unsupported(f"Unsupported property {p.key}")
    +816
    +817        return properties_locs
     
    @@ -6088,16 +6147,16 @@ Default: True
    -
    812    def property_sql(self, expression: exp.Property) -> str:
    -813        property_cls = expression.__class__
    -814        if property_cls == exp.Property:
    -815            return f"{expression.name}={self.sql(expression, 'value')}"
    -816
    -817        property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls)
    -818        if not property_name:
    -819            self.unsupported(f"Unsupported property {expression.key}")
    -820
    -821        return f"{property_name}={self.sql(expression, 'this')}"
    +            
    819    def property_sql(self, expression: exp.Property) -> str:
    +820        property_cls = expression.__class__
    +821        if property_cls == exp.Property:
    +822            return f"{expression.name}={self.sql(expression, 'value')}"
    +823
    +824        property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls)
    +825        if not property_name:
    +826            self.unsupported(f"Unsupported property {expression.key}")
    +827
    +828        return f"{property_name}={self.sql(expression, 'this')}"
     
    @@ -6115,10 +6174,10 @@ Default: True
    -
    823    def likeproperty_sql(self, expression: exp.LikeProperty) -> str:
    -824        options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions)
    -825        options = f" {options}" if options else ""
    -826        return f"LIKE {self.sql(expression, 'this')}{options}"
    +            
    830    def likeproperty_sql(self, expression: exp.LikeProperty) -> str:
    +831        options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions)
    +832        options = f" {options}" if options else ""
    +833        return f"LIKE {self.sql(expression, 'this')}{options}"
     
    @@ -6136,10 +6195,10 @@ Default: True
    -
    828    def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str:
    -829        no = "NO " if expression.args.get("no") else ""
    -830        protection = " PROTECTION" if expression.args.get("protection") else ""
    -831        return f"{no}FALLBACK{protection}"
    +            
    835    def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str:
    +836        no = "NO " if expression.args.get("no") else ""
    +837        protection = " PROTECTION" if expression.args.get("protection") else ""
    +838        return f"{no}FALLBACK{protection}"
     
    @@ -6157,11 +6216,11 @@ Default: True
    -
    833    def journalproperty_sql(self, expression: exp.JournalProperty) -> str:
    -834        no = "NO " if expression.args.get("no") else ""
    -835        dual = "DUAL " if expression.args.get("dual") else ""
    -836        before = "BEFORE " if expression.args.get("before") else ""
    -837        return f"{no}{dual}{before}JOURNAL"
    +            
    840    def journalproperty_sql(self, expression: exp.JournalProperty) -> str:
    +841        no = "NO " if expression.args.get("no") else ""
    +842        dual = "DUAL " if expression.args.get("dual") else ""
    +843        before = "BEFORE " if expression.args.get("before") else ""
    +844        return f"{no}{dual}{before}JOURNAL"
     
    @@ -6179,10 +6238,10 @@ Default: True
    -
    839    def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str:
    -840        freespace = self.sql(expression, "this")
    -841        percent = " PERCENT" if expression.args.get("percent") else ""
    -842        return f"FREESPACE={freespace}{percent}"
    +            
    846    def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str:
    +847        freespace = self.sql(expression, "this")
    +848        percent = " PERCENT" if expression.args.get("percent") else ""
    +849        return f"FREESPACE={freespace}{percent}"
     
    @@ -6200,13 +6259,13 @@ Default: True
    -
    844    def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str:
    -845        no = "NO " if expression.args.get("no") else ""
    -846        dual = "DUAL " if expression.args.get("dual") else ""
    -847        local = ""
    -848        if expression.args.get("local") is not None:
    -849            local = "LOCAL " if expression.args.get("local") else "NOT LOCAL "
    -850        return f"{no}{dual}{local}AFTER JOURNAL"
    +            
    851    def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str:
    +852        no = "NO " if expression.args.get("no") else ""
    +853        dual = "DUAL " if expression.args.get("dual") else ""
    +854        local = ""
    +855        if expression.args.get("local") is not None:
    +856            local = "LOCAL " if expression.args.get("local") else "NOT LOCAL "
    +857        return f"{no}{dual}{local}AFTER JOURNAL"
     
    @@ -6224,14 +6283,14 @@ Default: True
    -
    852    def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str:
    -853        if expression.args.get("default"):
    -854            property = "DEFAULT"
    -855        elif expression.args.get("on"):
    -856            property = "ON"
    -857        else:
    -858            property = "OFF"
    -859        return f"CHECKSUM={property}"
    +            
    859    def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str:
    +860        if expression.args.get("default"):
    +861            property = "DEFAULT"
    +862        elif expression.args.get("on"):
    +863            property = "ON"
    +864        else:
    +865            property = "OFF"
    +866        return f"CHECKSUM={property}"
     
    @@ -6249,14 +6308,14 @@ Default: True
    -
    861    def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str:
    -862        if expression.args.get("no"):
    -863            return "NO MERGEBLOCKRATIO"
    -864        if expression.args.get("default"):
    -865            return "DEFAULT MERGEBLOCKRATIO"
    -866
    -867        percent = " PERCENT" if expression.args.get("percent") else ""
    -868        return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}"
    +            
    868    def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str:
    +869        if expression.args.get("no"):
    +870            return "NO MERGEBLOCKRATIO"
    +871        if expression.args.get("default"):
    +872            return "DEFAULT MERGEBLOCKRATIO"
    +873
    +874        percent = " PERCENT" if expression.args.get("percent") else ""
    +875        return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}"
     
    @@ -6274,21 +6333,21 @@ Default: True
    -
    870    def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str:
    -871        default = expression.args.get("default")
    -872        min = expression.args.get("min")
    -873        if default is not None or min is not None:
    -874            if default:
    -875                property = "DEFAULT"
    -876            elif min:
    -877                property = "MINIMUM"
    -878            else:
    -879                property = "MAXIMUM"
    -880            return f"{property} DATABLOCKSIZE"
    -881        else:
    -882            units = expression.args.get("units")
    -883            units = f" {units}" if units else ""
    -884            return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}"
    +            
    877    def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str:
    +878        default = expression.args.get("default")
    +879        min = expression.args.get("min")
    +880        if default is not None or min is not None:
    +881            if default:
    +882                property = "DEFAULT"
    +883            elif min:
    +884                property = "MINIMUM"
    +885            else:
    +886                property = "MAXIMUM"
    +887            return f"{property} DATABLOCKSIZE"
    +888        else:
    +889            units = expression.args.get("units")
    +890            units = f" {units}" if units else ""
    +891            return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}"
     
    @@ -6306,24 +6365,24 @@ Default: True
    -
    886    def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str:
    -887        autotemp = expression.args.get("autotemp")
    -888        always = expression.args.get("always")
    -889        default = expression.args.get("default")
    -890        manual = expression.args.get("manual")
    -891        never = expression.args.get("never")
    -892
    -893        if autotemp is not None:
    -894            property = f"AUTOTEMP({self.expressions(autotemp)})"
    -895        elif always:
    -896            property = "ALWAYS"
    -897        elif default:
    -898            property = "DEFAULT"
    -899        elif manual:
    -900            property = "MANUAL"
    -901        elif never:
    -902            property = "NEVER"
    -903        return f"BLOCKCOMPRESSION={property}"
    +            
    893    def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str:
    +894        autotemp = expression.args.get("autotemp")
    +895        always = expression.args.get("always")
    +896        default = expression.args.get("default")
    +897        manual = expression.args.get("manual")
    +898        never = expression.args.get("never")
    +899
    +900        if autotemp is not None:
    +901            property = f"AUTOTEMP({self.expressions(autotemp)})"
    +902        elif always:
    +903            property = "ALWAYS"
    +904        elif default:
    +905            property = "DEFAULT"
    +906        elif manual:
    +907            property = "MANUAL"
    +908        elif never:
    +909            property = "NEVER"
    +910        return f"BLOCKCOMPRESSION={property}"
     
    @@ -6341,20 +6400,20 @@ Default: True
    -
    905    def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str:
    -906        no = expression.args.get("no")
    -907        no = " NO" if no else ""
    -908        concurrent = expression.args.get("concurrent")
    -909        concurrent = " CONCURRENT" if concurrent else ""
    -910
    -911        for_ = ""
    -912        if expression.args.get("for_all"):
    -913            for_ = " FOR ALL"
    -914        elif expression.args.get("for_insert"):
    -915            for_ = " FOR INSERT"
    -916        elif expression.args.get("for_none"):
    -917            for_ = " FOR NONE"
    -918        return f"WITH{no}{concurrent} ISOLATED LOADING{for_}"
    +            
    912    def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str:
    +913        no = expression.args.get("no")
    +914        no = " NO" if no else ""
    +915        concurrent = expression.args.get("concurrent")
    +916        concurrent = " CONCURRENT" if concurrent else ""
    +917
    +918        for_ = ""
    +919        if expression.args.get("for_all"):
    +920            for_ = " FOR ALL"
    +921        elif expression.args.get("for_insert"):
    +922            for_ = " FOR INSERT"
    +923        elif expression.args.get("for_none"):
    +924            for_ = " FOR NONE"
    +925        return f"WITH{no}{concurrent} ISOLATED LOADING{for_}"
     
    @@ -6372,13 +6431,13 @@ Default: True
    -
    920    def lockingproperty_sql(self, expression: exp.LockingProperty) -> str:
    -921        kind = expression.args.get("kind")
    -922        this: str = f" {this}" if expression.this else ""
    -923        for_or_in = expression.args.get("for_or_in")
    -924        lock_type = expression.args.get("lock_type")
    -925        override = " OVERRIDE" if expression.args.get("override") else ""
    -926        return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}"
    +            
    927    def lockingproperty_sql(self, expression: exp.LockingProperty) -> str:
    +928        kind = expression.args.get("kind")
    +929        this: str = f" {this}" if expression.this else ""
    +930        for_or_in = expression.args.get("for_or_in")
    +931        lock_type = expression.args.get("lock_type")
    +932        override = " OVERRIDE" if expression.args.get("override") else ""
    +933        return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}"
     
    @@ -6396,13 +6455,13 @@ Default: True
    -
    928    def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str:
    -929        data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA"
    -930        statistics = expression.args.get("statistics")
    -931        statistics_sql = ""
    -932        if statistics is not None:
    -933            statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS"
    -934        return f"{data_sql}{statistics_sql}"
    +            
    935    def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str:
    +936        data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA"
    +937        statistics = expression.args.get("statistics")
    +938        statistics_sql = ""
    +939        if statistics is not None:
    +940            statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS"
    +941        return f"{data_sql}{statistics_sql}"
     
    @@ -6420,26 +6479,27 @@ Default: True
    -
    936    def insert_sql(self, expression: exp.Insert) -> str:
    -937        overwrite = expression.args.get("overwrite")
    -938
    -939        if isinstance(expression.this, exp.Directory):
    -940            this = "OVERWRITE " if overwrite else "INTO "
    -941        else:
    -942            this = "OVERWRITE TABLE " if overwrite else "INTO "
    -943
    -944        alternative = expression.args.get("alternative")
    -945        alternative = f" OR {alternative} " if alternative else " "
    -946        this = f"{this}{self.sql(expression, 'this')}"
    -947
    -948        exists = " IF EXISTS " if expression.args.get("exists") else " "
    -949        partition_sql = (
    -950            self.sql(expression, "partition") if expression.args.get("partition") else ""
    -951        )
    -952        expression_sql = self.sql(expression, "expression")
    -953        sep = self.sep() if partition_sql else ""
    -954        sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}"
    -955        return self.prepend_ctes(expression, sql)
    +            
    943    def insert_sql(self, expression: exp.Insert) -> str:
    +944        overwrite = expression.args.get("overwrite")
    +945
    +946        if isinstance(expression.this, exp.Directory):
    +947            this = "OVERWRITE " if overwrite else "INTO "
    +948        else:
    +949            this = "OVERWRITE TABLE " if overwrite else "INTO "
    +950
    +951        alternative = expression.args.get("alternative")
    +952        alternative = f" OR {alternative} " if alternative else " "
    +953        this = f"{this}{self.sql(expression, 'this')}"
    +954
    +955        exists = " IF EXISTS " if expression.args.get("exists") else " "
    +956        partition_sql = (
    +957            self.sql(expression, "partition") if expression.args.get("partition") else ""
    +958        )
    +959        expression_sql = self.sql(expression, "expression")
    +960        returning = self.sql(expression, "returning")
    +961        sep = self.sep() if partition_sql else ""
    +962        sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}"
    +963        return self.prepend_ctes(expression, sql)
     
    @@ -6457,11 +6517,11 @@ Default: True
    -
    957    def intersect_sql(self, expression: exp.Intersect) -> str:
    -958        return self.prepend_ctes(
    -959            expression,
    -960            self.set_operation(expression, self.intersect_op(expression)),
    -961        )
    +            
    965    def intersect_sql(self, expression: exp.Intersect) -> str:
    +966        return self.prepend_ctes(
    +967            expression,
    +968            self.set_operation(expression, self.intersect_op(expression)),
    +969        )
     
    @@ -6479,8 +6539,8 @@ Default: True
    -
    963    def intersect_op(self, expression: exp.Intersect) -> str:
    -964        return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}"
    +            
    971    def intersect_op(self, expression: exp.Intersect) -> str:
    +972        return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}"
     
    @@ -6498,8 +6558,8 @@ Default: True
    -
    966    def introducer_sql(self, expression: exp.Introducer) -> str:
    -967        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
    +            
    974    def introducer_sql(self, expression: exp.Introducer) -> str:
    +975        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
     
    @@ -6517,8 +6577,27 @@ Default: True
    -
    969    def pseudotype_sql(self, expression: exp.PseudoType) -> str:
    -970        return expression.name.upper()
    +            
    977    def pseudotype_sql(self, expression: exp.PseudoType) -> str:
    +978        return expression.name.upper()
    +
    + + + + +
    +
    + +
    + + def + returning_sql(self, expression: sqlglot.expressions.Returning) -> str: + + + +
    + +
    980    def returning_sql(self, expression: exp.Returning) -> str:
    +981        return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}"
     
    @@ -6536,20 +6615,20 @@ Default: True
    -
    972    def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str:
    -973        fields = expression.args.get("fields")
    -974        fields = f" FIELDS TERMINATED BY {fields}" if fields else ""
    -975        escaped = expression.args.get("escaped")
    -976        escaped = f" ESCAPED BY {escaped}" if escaped else ""
    -977        items = expression.args.get("collection_items")
    -978        items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else ""
    -979        keys = expression.args.get("map_keys")
    -980        keys = f" MAP KEYS TERMINATED BY {keys}" if keys else ""
    -981        lines = expression.args.get("lines")
    -982        lines = f" LINES TERMINATED BY {lines}" if lines else ""
    -983        null = expression.args.get("null")
    -984        null = f" NULL DEFINED AS {null}" if null else ""
    -985        return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}"
    +            
    983    def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str:
    +984        fields = expression.args.get("fields")
    +985        fields = f" FIELDS TERMINATED BY {fields}" if fields else ""
    +986        escaped = expression.args.get("escaped")
    +987        escaped = f" ESCAPED BY {escaped}" if escaped else ""
    +988        items = expression.args.get("collection_items")
    +989        items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else ""
    +990        keys = expression.args.get("map_keys")
    +991        keys = f" MAP KEYS TERMINATED BY {keys}" if keys else ""
    +992        lines = expression.args.get("lines")
    +993        lines = f" LINES TERMINATED BY {lines}" if lines else ""
    +994        null = expression.args.get("null")
    +995        null = f" NULL DEFINED AS {null}" if null else ""
    +996        return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}"
     
    @@ -6567,28 +6646,28 @@ Default: True
    -
     987    def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str:
    - 988        table = ".".join(
    - 989            part
    - 990            for part in [
    - 991                self.sql(expression, "catalog"),
    - 992                self.sql(expression, "db"),
    - 993                self.sql(expression, "this"),
    - 994            ]
    - 995            if part
    - 996        )
    - 997
    - 998        alias = self.sql(expression, "alias")
    - 999        alias = f"{sep}{alias}" if alias else ""
    -1000        hints = self.expressions(expression, key="hints", sep=", ", flat=True)
    -1001        hints = f" WITH ({hints})" if hints else ""
    -1002        laterals = self.expressions(expression, key="laterals", sep="")
    -1003        joins = self.expressions(expression, key="joins", sep="")
    -1004        pivots = self.expressions(expression, key="pivots", sep="")
    -1005        system_time = expression.args.get("system_time")
    -1006        system_time = f" {self.sql(expression, 'system_time')}" if system_time else ""
    -1007
    -1008        return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}"
    +            
     998    def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str:
    + 999        table = ".".join(
    +1000            part
    +1001            for part in [
    +1002                self.sql(expression, "catalog"),
    +1003                self.sql(expression, "db"),
    +1004                self.sql(expression, "this"),
    +1005            ]
    +1006            if part
    +1007        )
    +1008
    +1009        alias = self.sql(expression, "alias")
    +1010        alias = f"{sep}{alias}" if alias else ""
    +1011        hints = self.expressions(expression, key="hints", sep=", ", flat=True)
    +1012        hints = f" WITH ({hints})" if hints else ""
    +1013        laterals = self.expressions(expression, key="laterals", sep="")
    +1014        joins = self.expressions(expression, key="joins", sep="")
    +1015        pivots = self.expressions(expression, key="pivots", sep="")
    +1016        system_time = expression.args.get("system_time")
    +1017        system_time = f" {self.sql(expression, 'system_time')}" if system_time else ""
    +1018
    +1019        return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}"
     
    @@ -6600,34 +6679,35 @@ Default: True
    def - tablesample_sql(self, expression: sqlglot.expressions.TableSample) -> str: + tablesample_sql( self, expression: sqlglot.expressions.TableSample, seed_prefix: str = 'SEED') -> str:
    -
    1010    def tablesample_sql(self, expression: exp.TableSample) -> str:
    -1011        if self.alias_post_tablesample and expression.this.alias:
    -1012            this = self.sql(expression.this, "this")
    -1013            alias = f" AS {self.sql(expression.this, 'alias')}"
    -1014        else:
    -1015            this = self.sql(expression, "this")
    -1016            alias = ""
    -1017        method = self.sql(expression, "method")
    -1018        method = f" {method.upper()} " if method else ""
    -1019        numerator = self.sql(expression, "bucket_numerator")
    -1020        denominator = self.sql(expression, "bucket_denominator")
    -1021        field = self.sql(expression, "bucket_field")
    -1022        field = f" ON {field}" if field else ""
    -1023        bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else ""
    -1024        percent = self.sql(expression, "percent")
    -1025        percent = f"{percent} PERCENT" if percent else ""
    -1026        rows = self.sql(expression, "rows")
    -1027        rows = f"{rows} ROWS" if rows else ""
    -1028        size = self.sql(expression, "size")
    -1029        seed = self.sql(expression, "seed")
    -1030        seed = f" SEED ({seed})" if seed else ""
    -1031        return f"{this} TABLESAMPLE{method}({bucket}{percent}{rows}{size}){seed}{alias}"
    +            
    1021    def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    +1022        if self.alias_post_tablesample and expression.this.alias:
    +1023            this = self.sql(expression.this, "this")
    +1024            alias = f" AS {self.sql(expression.this, 'alias')}"
    +1025        else:
    +1026            this = self.sql(expression, "this")
    +1027            alias = ""
    +1028        method = self.sql(expression, "method")
    +1029        method = f"{method.upper()} " if method else ""
    +1030        numerator = self.sql(expression, "bucket_numerator")
    +1031        denominator = self.sql(expression, "bucket_denominator")
    +1032        field = self.sql(expression, "bucket_field")
    +1033        field = f" ON {field}" if field else ""
    +1034        bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else ""
    +1035        percent = self.sql(expression, "percent")
    +1036        percent = f"{percent} PERCENT" if percent else ""
    +1037        rows = self.sql(expression, "rows")
    +1038        rows = f"{rows} ROWS" if rows else ""
    +1039        size = self.sql(expression, "size")
    +1040        seed = self.sql(expression, "seed")
    +1041        seed = f" {seed_prefix} ({seed})" if seed else ""
    +1042        kind = expression.args.get("kind", "TABLESAMPLE")
    +1043        return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}"
     
    @@ -6645,15 +6725,15 @@ Default: True
    -
    1033    def pivot_sql(self, expression: exp.Pivot) -> str:
    -1034        this = self.sql(expression, "this")
    -1035        alias = self.sql(expression, "alias")
    -1036        alias = f" AS {alias}" if alias else ""
    -1037        unpivot = expression.args.get("unpivot")
    -1038        direction = "UNPIVOT" if unpivot else "PIVOT"
    -1039        expressions = self.expressions(expression, key="expressions")
    -1040        field = self.sql(expression, "field")
    -1041        return f"{this} {direction}({expressions} FOR {field}){alias}"
    +            
    1045    def pivot_sql(self, expression: exp.Pivot) -> str:
    +1046        this = self.sql(expression, "this")
    +1047        alias = self.sql(expression, "alias")
    +1048        alias = f" AS {alias}" if alias else ""
    +1049        unpivot = expression.args.get("unpivot")
    +1050        direction = "UNPIVOT" if unpivot else "PIVOT"
    +1051        expressions = self.expressions(expression, key="expressions")
    +1052        field = self.sql(expression, "field")
    +1053        return f"{this} {direction}({expressions} FOR {field}){alias}"
     
    @@ -6671,8 +6751,8 @@ Default: True
    -
    1043    def tuple_sql(self, expression: exp.Tuple) -> str:
    -1044        return f"({self.expressions(expression, flat=True)})"
    +            
    1055    def tuple_sql(self, expression: exp.Tuple) -> str:
    +1056        return f"({self.expressions(expression, flat=True)})"
     
    @@ -6690,13 +6770,14 @@ Default: True
    -
    1046    def update_sql(self, expression: exp.Update) -> str:
    -1047        this = self.sql(expression, "this")
    -1048        set_sql = self.expressions(expression, flat=True)
    -1049        from_sql = self.sql(expression, "from")
    -1050        where_sql = self.sql(expression, "where")
    -1051        sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}"
    -1052        return self.prepend_ctes(expression, sql)
    +            
    1058    def update_sql(self, expression: exp.Update) -> str:
    +1059        this = self.sql(expression, "this")
    +1060        set_sql = self.expressions(expression, flat=True)
    +1061        from_sql = self.sql(expression, "from")
    +1062        where_sql = self.sql(expression, "where")
    +1063        returning = self.sql(expression, "returning")
    +1064        sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}"
    +1065        return self.prepend_ctes(expression, sql)
     
    @@ -6714,16 +6795,16 @@ Default: True
    -
    1054    def values_sql(self, expression: exp.Values) -> str:
    -1055        args = self.expressions(expression)
    -1056        alias = self.sql(expression, "alias")
    -1057        values = f"VALUES{self.seg('')}{args}"
    -1058        values = (
    -1059            f"({values})"
    -1060            if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From))
    -1061            else values
    -1062        )
    -1063        return f"{values} AS {alias}" if alias else values
    +            
    1067    def values_sql(self, expression: exp.Values) -> str:
    +1068        args = self.expressions(expression)
    +1069        alias = self.sql(expression, "alias")
    +1070        values = f"VALUES{self.seg('')}{args}"
    +1071        values = (
    +1072            f"({values})"
    +1073            if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From))
    +1074            else values
    +1075        )
    +1076        return f"{values} AS {alias}" if alias else values
     
    @@ -6741,8 +6822,8 @@ Default: True
    -
    1065    def var_sql(self, expression: exp.Var) -> str:
    -1066        return self.sql(expression, "this")
    +            
    1078    def var_sql(self, expression: exp.Var) -> str:
    +1079        return self.sql(expression, "this")
     
    @@ -6760,10 +6841,10 @@ Default: True
    -
    1068    def into_sql(self, expression: exp.Into) -> str:
    -1069        temporary = " TEMPORARY" if expression.args.get("temporary") else ""
    -1070        unlogged = " UNLOGGED" if expression.args.get("unlogged") else ""
    -1071        return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}"
    +            
    1081    def into_sql(self, expression: exp.Into) -> str:
    +1082        temporary = " TEMPORARY" if expression.args.get("temporary") else ""
    +1083        unlogged = " UNLOGGED" if expression.args.get("unlogged") else ""
    +1084        return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}"
     
    @@ -6781,9 +6862,9 @@ Default: True
    -
    1073    def from_sql(self, expression: exp.From) -> str:
    -1074        expressions = self.expressions(expression, flat=True)
    -1075        return f"{self.seg('FROM')} {expressions}"
    +            
    1086    def from_sql(self, expression: exp.From) -> str:
    +1087        expressions = self.expressions(expression, flat=True)
    +1088        return f"{self.seg('FROM')} {expressions}"
     
    @@ -6801,33 +6882,33 @@ Default: True
    -
    1077    def group_sql(self, expression: exp.Group) -> str:
    -1078        group_by = self.op_expressions("GROUP BY", expression)
    -1079        grouping_sets = self.expressions(expression, key="grouping_sets", indent=False)
    -1080        grouping_sets = (
    -1081            f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else ""
    -1082        )
    -1083
    -1084        cube = expression.args.get("cube", [])
    -1085        if seq_get(cube, 0) is True:
    -1086            return f"{group_by}{self.seg('WITH CUBE')}"
    -1087        else:
    -1088            cube_sql = self.expressions(expression, key="cube", indent=False)
    -1089            cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else ""
    -1090
    -1091        rollup = expression.args.get("rollup", [])
    -1092        if seq_get(rollup, 0) is True:
    -1093            return f"{group_by}{self.seg('WITH ROLLUP')}"
    -1094        else:
    -1095            rollup_sql = self.expressions(expression, key="rollup", indent=False)
    -1096            rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else ""
    -1097
    -1098        groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",")
    -1099
    -1100        if expression.args.get("expressions") and groupings:
    -1101            group_by = f"{group_by},"
    -1102
    -1103        return f"{group_by}{groupings}"
    +            
    1090    def group_sql(self, expression: exp.Group) -> str:
    +1091        group_by = self.op_expressions("GROUP BY", expression)
    +1092        grouping_sets = self.expressions(expression, key="grouping_sets", indent=False)
    +1093        grouping_sets = (
    +1094            f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else ""
    +1095        )
    +1096
    +1097        cube = expression.args.get("cube", [])
    +1098        if seq_get(cube, 0) is True:
    +1099            return f"{group_by}{self.seg('WITH CUBE')}"
    +1100        else:
    +1101            cube_sql = self.expressions(expression, key="cube", indent=False)
    +1102            cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else ""
    +1103
    +1104        rollup = expression.args.get("rollup", [])
    +1105        if seq_get(rollup, 0) is True:
    +1106            return f"{group_by}{self.seg('WITH ROLLUP')}"
    +1107        else:
    +1108            rollup_sql = self.expressions(expression, key="rollup", indent=False)
    +1109            rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else ""
    +1110
    +1111        groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",")
    +1112
    +1113        if expression.args.get("expressions") and groupings:
    +1114            group_by = f"{group_by},"
    +1115
    +1116        return f"{group_by}{groupings}"
     
    @@ -6845,9 +6926,9 @@ Default: True
    -
    1105    def having_sql(self, expression: exp.Having) -> str:
    -1106        this = self.indent(self.sql(expression, "this"))
    -1107        return f"{self.seg('HAVING')}{self.sep()}{this}"
    +            
    1118    def having_sql(self, expression: exp.Having) -> str:
    +1119        this = self.indent(self.sql(expression, "this"))
    +1120        return f"{self.seg('HAVING')}{self.sep()}{this}"
     
    @@ -6865,36 +6946,36 @@ Default: True
    -
    1109    def join_sql(self, expression: exp.Join) -> str:
    -1110        op_sql = self.seg(
    -1111            " ".join(
    -1112                op
    -1113                for op in (
    -1114                    "NATURAL" if expression.args.get("natural") else None,
    -1115                    expression.side,
    -1116                    expression.kind,
    -1117                    "JOIN",
    -1118                )
    -1119                if op
    -1120            )
    -1121        )
    -1122        on_sql = self.sql(expression, "on")
    -1123        using = expression.args.get("using")
    -1124
    -1125        if not on_sql and using:
    -1126            on_sql = csv(*(self.sql(column) for column in using))
    -1127
    -1128        if on_sql:
    -1129            on_sql = self.indent(on_sql, skip_first=True)
    -1130            space = self.seg(" " * self.pad) if self.pretty else " "
    -1131            if using:
    -1132                on_sql = f"{space}USING ({on_sql})"
    -1133            else:
    -1134                on_sql = f"{space}ON {on_sql}"
    -1135
    -1136        expression_sql = self.sql(expression, "expression")
    -1137        this_sql = self.sql(expression, "this")
    -1138        return f"{expression_sql}{op_sql} {this_sql}{on_sql}"
    +            
    1122    def join_sql(self, expression: exp.Join) -> str:
    +1123        op_sql = self.seg(
    +1124            " ".join(
    +1125                op
    +1126                for op in (
    +1127                    "NATURAL" if expression.args.get("natural") else None,
    +1128                    expression.side,
    +1129                    expression.kind,
    +1130                    "JOIN",
    +1131                )
    +1132                if op
    +1133            )
    +1134        )
    +1135        on_sql = self.sql(expression, "on")
    +1136        using = expression.args.get("using")
    +1137
    +1138        if not on_sql and using:
    +1139            on_sql = csv(*(self.sql(column) for column in using))
    +1140
    +1141        if on_sql:
    +1142            on_sql = self.indent(on_sql, skip_first=True)
    +1143            space = self.seg(" " * self.pad) if self.pretty else " "
    +1144            if using:
    +1145                on_sql = f"{space}USING ({on_sql})"
    +1146            else:
    +1147                on_sql = f"{space}ON {on_sql}"
    +1148
    +1149        expression_sql = self.sql(expression, "expression")
    +1150        this_sql = self.sql(expression, "this")
    +1151        return f"{expression_sql}{op_sql} {this_sql}{on_sql}"
     
    @@ -6912,10 +6993,10 @@ Default: True
    -
    1140    def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str:
    -1141        args = self.expressions(expression, flat=True)
    -1142        args = f"({args})" if len(args.split(",")) > 1 else args
    -1143        return f"{args} {arrow_sep} {self.sql(expression, 'this')}"
    +            
    1153    def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str:
    +1154        args = self.expressions(expression, flat=True)
    +1155        args = f"({args})" if len(args.split(",")) > 1 else args
    +1156        return f"{args} {arrow_sep} {self.sql(expression, 'this')}"
     
    @@ -6933,23 +7014,23 @@ Default: True
    -
    1145    def lateral_sql(self, expression: exp.Lateral) -> str:
    -1146        this = self.sql(expression, "this")
    -1147
    -1148        if isinstance(expression.this, exp.Subquery):
    -1149            return f"LATERAL {this}"
    -1150
    -1151        if expression.args.get("view"):
    -1152            alias = expression.args["alias"]
    -1153            columns = self.expressions(alias, key="columns", flat=True)
    -1154            table = f" {alias.name}" if alias.name else ""
    -1155            columns = f" AS {columns}" if columns else ""
    -1156            op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}")
    -1157            return f"{op_sql}{self.sep()}{this}{table}{columns}"
    -1158
    -1159        alias = self.sql(expression, "alias")
    -1160        alias = f" AS {alias}" if alias else ""
    -1161        return f"LATERAL {this}{alias}"
    +            
    1158    def lateral_sql(self, expression: exp.Lateral) -> str:
    +1159        this = self.sql(expression, "this")
    +1160
    +1161        if isinstance(expression.this, exp.Subquery):
    +1162            return f"LATERAL {this}"
    +1163
    +1164        if expression.args.get("view"):
    +1165            alias = expression.args["alias"]
    +1166            columns = self.expressions(alias, key="columns", flat=True)
    +1167            table = f" {alias.name}" if alias.name else ""
    +1168            columns = f" AS {columns}" if columns else ""
    +1169            op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}")
    +1170            return f"{op_sql}{self.sep()}{this}{table}{columns}"
    +1171
    +1172        alias = self.sql(expression, "alias")
    +1173        alias = f" AS {alias}" if alias else ""
    +1174        return f"LATERAL {this}{alias}"
     
    @@ -6967,9 +7048,9 @@ Default: True
    -
    1163    def limit_sql(self, expression: exp.Limit) -> str:
    -1164        this = self.sql(expression, "this")
    -1165        return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}"
    +            
    1176    def limit_sql(self, expression: exp.Limit) -> str:
    +1177        this = self.sql(expression, "this")
    +1178        return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}"
     
    @@ -6987,9 +7068,9 @@ Default: True
    -
    1167    def offset_sql(self, expression: exp.Offset) -> str:
    -1168        this = self.sql(expression, "this")
    -1169        return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}"
    +            
    1180    def offset_sql(self, expression: exp.Offset) -> str:
    +1181        this = self.sql(expression, "this")
    +1182        return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}"
     
    @@ -7007,13 +7088,13 @@ Default: True
    -
    1171    def lock_sql(self, expression: exp.Lock) -> str:
    -1172        if self.LOCKING_READS_SUPPORTED:
    -1173            lock_type = "UPDATE" if expression.args["update"] else "SHARE"
    -1174            return self.seg(f"FOR {lock_type}")
    -1175
    -1176        self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported")
    -1177        return ""
    +            
    1184    def lock_sql(self, expression: exp.Lock) -> str:
    +1185        if self.LOCKING_READS_SUPPORTED:
    +1186            lock_type = "UPDATE" if expression.args["update"] else "SHARE"
    +1187            return self.seg(f"FOR {lock_type}")
    +1188
    +1189        self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported")
    +1190        return ""
     
    @@ -7031,14 +7112,14 @@ Default: True
    -
    1179    def literal_sql(self, expression: exp.Literal) -> str:
    -1180        text = expression.this or ""
    -1181        if expression.is_string:
    -1182            text = text.replace(self.quote_end, self._escaped_quote_end)
    -1183            if self.pretty:
    -1184                text = text.replace("\n", self.SENTINEL_LINE_BREAK)
    -1185            text = f"{self.quote_start}{text}{self.quote_end}"
    -1186        return text
    +            
    1192    def literal_sql(self, expression: exp.Literal) -> str:
    +1193        text = expression.this or ""
    +1194        if expression.is_string:
    +1195            text = text.replace(self.quote_end, self._escaped_quote_end)
    +1196            if self.pretty:
    +1197                text = text.replace("\n", self.SENTINEL_LINE_BREAK)
    +1198            text = f"{self.quote_start}{text}{self.quote_end}"
    +1199        return text
     
    @@ -7056,18 +7137,18 @@ Default: True
    -
    1188    def loaddata_sql(self, expression: exp.LoadData) -> str:
    -1189        local = " LOCAL" if expression.args.get("local") else ""
    -1190        inpath = f" INPATH {self.sql(expression, 'inpath')}"
    -1191        overwrite = " OVERWRITE" if expression.args.get("overwrite") else ""
    -1192        this = f" INTO TABLE {self.sql(expression, 'this')}"
    -1193        partition = self.sql(expression, "partition")
    -1194        partition = f" {partition}" if partition else ""
    -1195        input_format = self.sql(expression, "input_format")
    -1196        input_format = f" INPUTFORMAT {input_format}" if input_format else ""
    -1197        serde = self.sql(expression, "serde")
    -1198        serde = f" SERDE {serde}" if serde else ""
    -1199        return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}"
    +            
    1201    def loaddata_sql(self, expression: exp.LoadData) -> str:
    +1202        local = " LOCAL" if expression.args.get("local") else ""
    +1203        inpath = f" INPATH {self.sql(expression, 'inpath')}"
    +1204        overwrite = " OVERWRITE" if expression.args.get("overwrite") else ""
    +1205        this = f" INTO TABLE {self.sql(expression, 'this')}"
    +1206        partition = self.sql(expression, "partition")
    +1207        partition = f" {partition}" if partition else ""
    +1208        input_format = self.sql(expression, "input_format")
    +1209        input_format = f" INPUTFORMAT {input_format}" if input_format else ""
    +1210        serde = self.sql(expression, "serde")
    +1211        serde = f" SERDE {serde}" if serde else ""
    +1212        return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}"
     
    @@ -7085,8 +7166,8 @@ Default: True
    -
    1201    def null_sql(self, *_) -> str:
    -1202        return "NULL"
    +            
    1214    def null_sql(self, *_) -> str:
    +1215        return "NULL"
     
    @@ -7104,8 +7185,8 @@ Default: True
    -
    1204    def boolean_sql(self, expression: exp.Boolean) -> str:
    -1205        return "TRUE" if expression.this else "FALSE"
    +            
    1217    def boolean_sql(self, expression: exp.Boolean) -> str:
    +1218        return "TRUE" if expression.this else "FALSE"
     
    @@ -7123,10 +7204,10 @@ Default: True
    -
    1207    def order_sql(self, expression: exp.Order, flat: bool = False) -> str:
    -1208        this = self.sql(expression, "this")
    -1209        this = f"{this} " if this else this
    -1210        return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat)  # type: ignore
    +            
    1220    def order_sql(self, expression: exp.Order, flat: bool = False) -> str:
    +1221        this = self.sql(expression, "this")
    +1222        this = f"{this} " if this else this
    +1223        return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat)  # type: ignore
     
    @@ -7144,8 +7225,8 @@ Default: True
    -
    1212    def cluster_sql(self, expression: exp.Cluster) -> str:
    -1213        return self.op_expressions("CLUSTER BY", expression)
    +            
    1225    def cluster_sql(self, expression: exp.Cluster) -> str:
    +1226        return self.op_expressions("CLUSTER BY", expression)
     
    @@ -7163,8 +7244,8 @@ Default: True
    -
    1215    def distribute_sql(self, expression: exp.Distribute) -> str:
    -1216        return self.op_expressions("DISTRIBUTE BY", expression)
    +            
    1228    def distribute_sql(self, expression: exp.Distribute) -> str:
    +1229        return self.op_expressions("DISTRIBUTE BY", expression)
     
    @@ -7182,8 +7263,8 @@ Default: True
    -
    1218    def sort_sql(self, expression: exp.Sort) -> str:
    -1219        return self.op_expressions("SORT BY", expression)
    +            
    1231    def sort_sql(self, expression: exp.Sort) -> str:
    +1232        return self.op_expressions("SORT BY", expression)
     
    @@ -7201,36 +7282,36 @@ Default: True
    -
    1221    def ordered_sql(self, expression: exp.Ordered) -> str:
    -1222        desc = expression.args.get("desc")
    -1223        asc = not desc
    -1224
    -1225        nulls_first = expression.args.get("nulls_first")
    -1226        nulls_last = not nulls_first
    -1227        nulls_are_large = self.null_ordering == "nulls_are_large"
    -1228        nulls_are_small = self.null_ordering == "nulls_are_small"
    -1229        nulls_are_last = self.null_ordering == "nulls_are_last"
    -1230
    -1231        sort_order = " DESC" if desc else ""
    -1232        nulls_sort_change = ""
    -1233        if nulls_first and (
    -1234            (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last
    -1235        ):
    -1236            nulls_sort_change = " NULLS FIRST"
    -1237        elif (
    -1238            nulls_last
    -1239            and ((asc and nulls_are_small) or (desc and nulls_are_large))
    -1240            and not nulls_are_last
    -1241        ):
    -1242            nulls_sort_change = " NULLS LAST"
    +            
    1234    def ordered_sql(self, expression: exp.Ordered) -> str:
    +1235        desc = expression.args.get("desc")
    +1236        asc = not desc
    +1237
    +1238        nulls_first = expression.args.get("nulls_first")
    +1239        nulls_last = not nulls_first
    +1240        nulls_are_large = self.null_ordering == "nulls_are_large"
    +1241        nulls_are_small = self.null_ordering == "nulls_are_small"
    +1242        nulls_are_last = self.null_ordering == "nulls_are_last"
     1243
    -1244        if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED:
    -1245            self.unsupported(
    -1246                "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect"
    -1247            )
    -1248            nulls_sort_change = ""
    -1249
    -1250        return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}"
    +1244        sort_order = " DESC" if desc else ""
    +1245        nulls_sort_change = ""
    +1246        if nulls_first and (
    +1247            (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last
    +1248        ):
    +1249            nulls_sort_change = " NULLS FIRST"
    +1250        elif (
    +1251            nulls_last
    +1252            and ((asc and nulls_are_small) or (desc and nulls_are_large))
    +1253            and not nulls_are_last
    +1254        ):
    +1255            nulls_sort_change = " NULLS LAST"
    +1256
    +1257        if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED:
    +1258            self.unsupported(
    +1259                "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect"
    +1260            )
    +1261            nulls_sort_change = ""
    +1262
    +1263        return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}"
     
    @@ -7248,31 +7329,31 @@ Default: True
    -
    1252    def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str:
    -1253        partition = self.partition_by_sql(expression)
    -1254        order = self.sql(expression, "order")
    -1255        measures = self.sql(expression, "measures")
    -1256        measures = self.seg(f"MEASURES {measures}") if measures else ""
    -1257        rows = self.sql(expression, "rows")
    -1258        rows = self.seg(rows) if rows else ""
    -1259        after = self.sql(expression, "after")
    -1260        after = self.seg(after) if after else ""
    -1261        pattern = self.sql(expression, "pattern")
    -1262        pattern = self.seg(f"PATTERN ({pattern})") if pattern else ""
    -1263        define = self.sql(expression, "define")
    -1264        define = self.seg(f"DEFINE {define}") if define else ""
    -1265        body = "".join(
    -1266            (
    -1267                partition,
    -1268                order,
    -1269                measures,
    -1270                rows,
    -1271                after,
    -1272                pattern,
    -1273                define,
    -1274            )
    -1275        )
    -1276        return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}"
    +            
    1265    def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str:
    +1266        partition = self.partition_by_sql(expression)
    +1267        order = self.sql(expression, "order")
    +1268        measures = self.sql(expression, "measures")
    +1269        measures = self.seg(f"MEASURES {measures}") if measures else ""
    +1270        rows = self.sql(expression, "rows")
    +1271        rows = self.seg(rows) if rows else ""
    +1272        after = self.sql(expression, "after")
    +1273        after = self.seg(after) if after else ""
    +1274        pattern = self.sql(expression, "pattern")
    +1275        pattern = self.seg(f"PATTERN ({pattern})") if pattern else ""
    +1276        define = self.sql(expression, "define")
    +1277        define = self.seg(f"DEFINE {define}") if define else ""
    +1278        body = "".join(
    +1279            (
    +1280                partition,
    +1281                order,
    +1282                measures,
    +1283                rows,
    +1284                after,
    +1285                pattern,
    +1286                define,
    +1287            )
    +1288        )
    +1289        return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}"
     
    @@ -7290,28 +7371,29 @@ Default: True
    -
    1278    def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str:
    -1279        return csv(
    -1280            *sqls,
    -1281            *[self.sql(sql) for sql in expression.args.get("joins") or []],
    -1282            self.sql(expression, "match"),
    -1283            *[self.sql(sql) for sql in expression.args.get("laterals") or []],
    -1284            self.sql(expression, "where"),
    -1285            self.sql(expression, "group"),
    -1286            self.sql(expression, "having"),
    -1287            self.sql(expression, "qualify"),
    -1288            self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True)
    -1289            if expression.args.get("windows")
    -1290            else "",
    -1291            self.sql(expression, "distribute"),
    -1292            self.sql(expression, "sort"),
    -1293            self.sql(expression, "cluster"),
    -1294            self.sql(expression, "order"),
    -1295            self.sql(expression, "limit"),
    -1296            self.sql(expression, "offset"),
    -1297            self.sql(expression, "lock"),
    -1298            sep="",
    -1299        )
    +            
    1291    def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str:
    +1292        return csv(
    +1293            *sqls,
    +1294            *[self.sql(sql) for sql in expression.args.get("joins") or []],
    +1295            self.sql(expression, "match"),
    +1296            *[self.sql(sql) for sql in expression.args.get("laterals") or []],
    +1297            self.sql(expression, "where"),
    +1298            self.sql(expression, "group"),
    +1299            self.sql(expression, "having"),
    +1300            self.sql(expression, "qualify"),
    +1301            self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True)
    +1302            if expression.args.get("windows")
    +1303            else "",
    +1304            self.sql(expression, "distribute"),
    +1305            self.sql(expression, "sort"),
    +1306            self.sql(expression, "cluster"),
    +1307            self.sql(expression, "order"),
    +1308            self.sql(expression, "limit"),
    +1309            self.sql(expression, "offset"),
    +1310            self.sql(expression, "lock"),
    +1311            self.sql(expression, "sample"),
    +1312            sep="",
    +1313        )
     
    @@ -7329,19 +7411,19 @@ Default: True
    -
    1301    def select_sql(self, expression: exp.Select) -> str:
    -1302        hint = self.sql(expression, "hint")
    -1303        distinct = self.sql(expression, "distinct")
    -1304        distinct = f" {distinct}" if distinct else ""
    -1305        expressions = self.expressions(expression)
    -1306        expressions = f"{self.sep()}{expressions}" if expressions else expressions
    -1307        sql = self.query_modifiers(
    -1308            expression,
    -1309            f"SELECT{hint}{distinct}{expressions}",
    -1310            self.sql(expression, "into", comment=False),
    -1311            self.sql(expression, "from", comment=False),
    -1312        )
    -1313        return self.prepend_ctes(expression, sql)
    +            
    1315    def select_sql(self, expression: exp.Select) -> str:
    +1316        hint = self.sql(expression, "hint")
    +1317        distinct = self.sql(expression, "distinct")
    +1318        distinct = f" {distinct}" if distinct else ""
    +1319        expressions = self.expressions(expression)
    +1320        expressions = f"{self.sep()}{expressions}" if expressions else expressions
    +1321        sql = self.query_modifiers(
    +1322            expression,
    +1323            f"SELECT{hint}{distinct}{expressions}",
    +1324            self.sql(expression, "into", comment=False),
    +1325            self.sql(expression, "from", comment=False),
    +1326        )
    +1327        return self.prepend_ctes(expression, sql)
     
    @@ -7359,11 +7441,11 @@ Default: True
    -
    1315    def schema_sql(self, expression: exp.Schema) -> str:
    -1316        this = self.sql(expression, "this")
    -1317        this = f"{this} " if this else ""
    -1318        sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}"
    -1319        return f"{this}{sql}"
    +            
    1329    def schema_sql(self, expression: exp.Schema) -> str:
    +1330        this = self.sql(expression, "this")
    +1331        this = f"{this} " if this else ""
    +1332        sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}"
    +1333        return f"{this}{sql}"
     
    @@ -7381,12 +7463,12 @@ Default: True
    -
    1321    def star_sql(self, expression: exp.Star) -> str:
    -1322        except_ = self.expressions(expression, key="except", flat=True)
    -1323        except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else ""
    -1324        replace = self.expressions(expression, key="replace", flat=True)
    -1325        replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else ""
    -1326        return f"*{except_}{replace}"
    +            
    1335    def star_sql(self, expression: exp.Star) -> str:
    +1336        except_ = self.expressions(expression, key="except", flat=True)
    +1337        except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else ""
    +1338        replace = self.expressions(expression, key="replace", flat=True)
    +1339        replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else ""
    +1340        return f"*{except_}{replace}"
     
    @@ -7404,8 +7486,8 @@ Default: True
    -
    1328    def structkwarg_sql(self, expression: exp.StructKwarg) -> str:
    -1329        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
    +            
    1342    def structkwarg_sql(self, expression: exp.StructKwarg) -> str:
    +1343        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
     
    @@ -7423,10 +7505,10 @@ Default: True
    -
    1331    def parameter_sql(self, expression: exp.Parameter) -> str:
    -1332        this = self.sql(expression, "this")
    -1333        this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}"
    -1334        return f"{self.PARAMETER_TOKEN}{this}"
    +            
    1345    def parameter_sql(self, expression: exp.Parameter) -> str:
    +1346        this = self.sql(expression, "this")
    +1347        this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}"
    +1348        return f"{self.PARAMETER_TOKEN}{this}"
     
    @@ -7444,12 +7526,12 @@ Default: True
    -
    1336    def sessionparameter_sql(self, expression: exp.SessionParameter) -> str:
    -1337        this = self.sql(expression, "this")
    -1338        kind = expression.text("kind")
    -1339        if kind:
    -1340            kind = f"{kind}."
    -1341        return f"@@{kind}{this}"
    +            
    1350    def sessionparameter_sql(self, expression: exp.SessionParameter) -> str:
    +1351        this = self.sql(expression, "this")
    +1352        kind = expression.text("kind")
    +1353        if kind:
    +1354            kind = f"{kind}."
    +1355        return f"@@{kind}{this}"
     
    @@ -7467,8 +7549,8 @@ Default: True
    -
    1343    def placeholder_sql(self, expression: exp.Placeholder) -> str:
    -1344        return f":{expression.name}" if expression.name else "?"
    +            
    1357    def placeholder_sql(self, expression: exp.Placeholder) -> str:
    +1358        return f":{expression.name}" if expression.name else "?"
     
    @@ -7486,18 +7568,18 @@ Default: True
    -
    1346    def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str:
    -1347        alias = self.sql(expression, "alias")
    -1348        alias = f"{sep}{alias}" if alias else ""
    -1349
    -1350        sql = self.query_modifiers(
    -1351            expression,
    -1352            self.wrap(expression),
    -1353            self.expressions(expression, key="pivots", sep=" "),
    -1354            alias,
    -1355        )
    -1356
    -1357        return self.prepend_ctes(expression, sql)
    +            
    1360    def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str:
    +1361        alias = self.sql(expression, "alias")
    +1362        alias = f"{sep}{alias}" if alias else ""
    +1363
    +1364        sql = self.query_modifiers(
    +1365            expression,
    +1366            self.wrap(expression),
    +1367            self.expressions(expression, key="pivots", sep=" "),
    +1368            alias,
    +1369        )
    +1370
    +1371        return self.prepend_ctes(expression, sql)
     
    @@ -7515,9 +7597,9 @@ Default: True
    -
    1359    def qualify_sql(self, expression: exp.Qualify) -> str:
    -1360        this = self.indent(self.sql(expression, "this"))
    -1361        return f"{self.seg('QUALIFY')}{self.sep()}{this}"
    +            
    1373    def qualify_sql(self, expression: exp.Qualify) -> str:
    +1374        this = self.indent(self.sql(expression, "this"))
    +1375        return f"{self.seg('QUALIFY')}{self.sep()}{this}"
     
    @@ -7535,11 +7617,11 @@ Default: True
    -
    1363    def union_sql(self, expression: exp.Union) -> str:
    -1364        return self.prepend_ctes(
    -1365            expression,
    -1366            self.set_operation(expression, self.union_op(expression)),
    -1367        )
    +            
    1377    def union_sql(self, expression: exp.Union) -> str:
    +1378        return self.prepend_ctes(
    +1379            expression,
    +1380            self.set_operation(expression, self.union_op(expression)),
    +1381        )
     
    @@ -7557,10 +7639,10 @@ Default: True
    -
    1369    def union_op(self, expression: exp.Union) -> str:
    -1370        kind = " DISTINCT" if self.EXPLICIT_UNION else ""
    -1371        kind = kind if expression.args.get("distinct") else " ALL"
    -1372        return f"UNION{kind}"
    +            
    1383    def union_op(self, expression: exp.Union) -> str:
    +1384        kind = " DISTINCT" if self.EXPLICIT_UNION else ""
    +1385        kind = kind if expression.args.get("distinct") else " ALL"
    +1386        return f"UNION{kind}"
     
    @@ -7578,19 +7660,19 @@ Default: True
    -
    1374    def unnest_sql(self, expression: exp.Unnest) -> str:
    -1375        args = self.expressions(expression, flat=True)
    -1376        alias = expression.args.get("alias")
    -1377        if alias and self.unnest_column_only:
    -1378            columns = alias.columns
    -1379            alias = self.sql(columns[0]) if columns else ""
    -1380        else:
    -1381            alias = self.sql(expression, "alias")
    -1382        alias = f" AS {alias}" if alias else alias
    -1383        ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else ""
    -1384        offset = expression.args.get("offset")
    -1385        offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else ""
    -1386        return f"UNNEST({args}){ordinality}{alias}{offset}"
    +            
    1388    def unnest_sql(self, expression: exp.Unnest) -> str:
    +1389        args = self.expressions(expression, flat=True)
    +1390        alias = expression.args.get("alias")
    +1391        if alias and self.unnest_column_only:
    +1392            columns = alias.columns
    +1393            alias = self.sql(columns[0]) if columns else ""
    +1394        else:
    +1395            alias = self.sql(expression, "alias")
    +1396        alias = f" AS {alias}" if alias else alias
    +1397        ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else ""
    +1398        offset = expression.args.get("offset")
    +1399        offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else ""
    +1400        return f"UNNEST({args}){ordinality}{alias}{offset}"
     
    @@ -7608,9 +7690,9 @@ Default: True
    -
    1388    def where_sql(self, expression: exp.Where) -> str:
    -1389        this = self.indent(self.sql(expression, "this"))
    -1390        return f"{self.seg('WHERE')}{self.sep()}{this}"
    +            
    1402    def where_sql(self, expression: exp.Where) -> str:
    +1403        this = self.indent(self.sql(expression, "this"))
    +1404        return f"{self.seg('WHERE')}{self.sep()}{this}"
     
    @@ -7628,28 +7710,28 @@ Default: True
    -
    1392    def window_sql(self, expression: exp.Window) -> str:
    -1393        this = self.sql(expression, "this")
    -1394
    -1395        partition = self.partition_by_sql(expression)
    -1396
    -1397        order = expression.args.get("order")
    -1398        order_sql = self.order_sql(order, flat=True) if order else ""
    -1399
    -1400        partition_sql = partition + " " if partition and order else partition
    -1401
    -1402        spec = expression.args.get("spec")
    -1403        spec_sql = " " + self.window_spec_sql(spec) if spec else ""
    -1404
    -1405        alias = self.sql(expression, "alias")
    -1406        this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}"
    -1407
    -1408        if not partition and not order and not spec and alias:
    -1409            return f"{this} {alias}"
    +            
    1406    def window_sql(self, expression: exp.Window) -> str:
    +1407        this = self.sql(expression, "this")
    +1408
    +1409        partition = self.partition_by_sql(expression)
     1410
    -1411        window_args = alias + partition_sql + order_sql + spec_sql
    -1412
    -1413        return f"{this} ({window_args.strip()})"
    +1411        order = expression.args.get("order")
    +1412        order_sql = self.order_sql(order, flat=True) if order else ""
    +1413
    +1414        partition_sql = partition + " " if partition and order else partition
    +1415
    +1416        spec = expression.args.get("spec")
    +1417        spec_sql = " " + self.window_spec_sql(spec) if spec else ""
    +1418
    +1419        alias = self.sql(expression, "alias")
    +1420        this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}"
    +1421
    +1422        if not partition and not order and not spec and alias:
    +1423            return f"{this} {alias}"
    +1424
    +1425        window_args = alias + partition_sql + order_sql + spec_sql
    +1426
    +1427        return f"{this} ({window_args.strip()})"
     
    @@ -7667,9 +7749,9 @@ Default: True
    -
    1415    def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str:
    -1416        partition = self.expressions(expression, key="partition_by", flat=True)
    -1417        return f"PARTITION BY {partition}" if partition else ""
    +            
    1429    def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str:
    +1430        partition = self.expressions(expression, key="partition_by", flat=True)
    +1431        return f"PARTITION BY {partition}" if partition else ""
     
    @@ -7687,14 +7769,14 @@ Default: True
    -
    1419    def window_spec_sql(self, expression: exp.WindowSpec) -> str:
    -1420        kind = self.sql(expression, "kind")
    -1421        start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ")
    -1422        end = (
    -1423            csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ")
    -1424            or "CURRENT ROW"
    -1425        )
    -1426        return f"{kind} BETWEEN {start} AND {end}"
    +            
    1433    def window_spec_sql(self, expression: exp.WindowSpec) -> str:
    +1434        kind = self.sql(expression, "kind")
    +1435        start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ")
    +1436        end = (
    +1437            csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ")
    +1438            or "CURRENT ROW"
    +1439        )
    +1440        return f"{kind} BETWEEN {start} AND {end}"
     
    @@ -7712,10 +7794,10 @@ Default: True
    -
    1428    def withingroup_sql(self, expression: exp.WithinGroup) -> str:
    -1429        this = self.sql(expression, "this")
    -1430        expression_sql = self.sql(expression, "expression")[1:]  # order has a leading space
    -1431        return f"{this} WITHIN GROUP ({expression_sql})"
    +            
    1442    def withingroup_sql(self, expression: exp.WithinGroup) -> str:
    +1443        this = self.sql(expression, "this")
    +1444        expression_sql = self.sql(expression, "expression")[1:]  # order has a leading space
    +1445        return f"{this} WITHIN GROUP ({expression_sql})"
     
    @@ -7733,11 +7815,11 @@ Default: True
    -
    1433    def between_sql(self, expression: exp.Between) -> str:
    -1434        this = self.sql(expression, "this")
    -1435        low = self.sql(expression, "low")
    -1436        high = self.sql(expression, "high")
    -1437        return f"{this} BETWEEN {low} AND {high}"
    +            
    1447    def between_sql(self, expression: exp.Between) -> str:
    +1448        this = self.sql(expression, "this")
    +1449        low = self.sql(expression, "low")
    +1450        high = self.sql(expression, "high")
    +1451        return f"{this} BETWEEN {low} AND {high}"
     
    @@ -7755,11 +7837,11 @@ Default: True
    -
    1439    def bracket_sql(self, expression: exp.Bracket) -> str:
    -1440        expressions = apply_index_offset(expression.expressions, self.index_offset)
    -1441        expressions_sql = ", ".join(self.sql(e) for e in expressions)
    -1442
    -1443        return f"{self.sql(expression, 'this')}[{expressions_sql}]"
    +            
    1453    def bracket_sql(self, expression: exp.Bracket) -> str:
    +1454        expressions = apply_index_offset(expression.expressions, self.index_offset)
    +1455        expressions_sql = ", ".join(self.sql(e) for e in expressions)
    +1456
    +1457        return f"{self.sql(expression, 'this')}[{expressions_sql}]"
     
    @@ -7777,8 +7859,8 @@ Default: True
    -
    1445    def all_sql(self, expression: exp.All) -> str:
    -1446        return f"ALL {self.wrap(expression)}"
    +            
    1459    def all_sql(self, expression: exp.All) -> str:
    +1460        return f"ALL {self.wrap(expression)}"
     
    @@ -7796,11 +7878,11 @@ Default: True
    -
    1448    def any_sql(self, expression: exp.Any) -> str:
    -1449        this = self.sql(expression, "this")
    -1450        if isinstance(expression.this, exp.Subqueryable):
    -1451            this = self.wrap(this)
    -1452        return f"ANY {this}"
    +            
    1462    def any_sql(self, expression: exp.Any) -> str:
    +1463        this = self.sql(expression, "this")
    +1464        if isinstance(expression.this, exp.Subqueryable):
    +1465            this = self.wrap(this)
    +1466        return f"ANY {this}"
     
    @@ -7818,8 +7900,8 @@ Default: True
    -
    1454    def exists_sql(self, expression: exp.Exists) -> str:
    -1455        return f"EXISTS{self.wrap(expression)}"
    +            
    1468    def exists_sql(self, expression: exp.Exists) -> str:
    +1469        return f"EXISTS{self.wrap(expression)}"
     
    @@ -7837,25 +7919,25 @@ Default: True
    -
    1457    def case_sql(self, expression: exp.Case) -> str:
    -1458        this = self.sql(expression, "this")
    -1459        statements = [f"CASE {this}" if this else "CASE"]
    -1460
    -1461        for e in expression.args["ifs"]:
    -1462            statements.append(f"WHEN {self.sql(e, 'this')}")
    -1463            statements.append(f"THEN {self.sql(e, 'true')}")
    -1464
    -1465        default = self.sql(expression, "default")
    -1466
    -1467        if default:
    -1468            statements.append(f"ELSE {default}")
    -1469
    -1470        statements.append("END")
    -1471
    -1472        if self.pretty and self.text_width(statements) > self._max_text_width:
    -1473            return self.indent("\n".join(statements), skip_first=True, skip_last=True)
    +            
    1471    def case_sql(self, expression: exp.Case) -> str:
    +1472        this = self.sql(expression, "this")
    +1473        statements = [f"CASE {this}" if this else "CASE"]
     1474
    -1475        return " ".join(statements)
    +1475        for e in expression.args["ifs"]:
    +1476            statements.append(f"WHEN {self.sql(e, 'this')}")
    +1477            statements.append(f"THEN {self.sql(e, 'true')}")
    +1478
    +1479        default = self.sql(expression, "default")
    +1480
    +1481        if default:
    +1482            statements.append(f"ELSE {default}")
    +1483
    +1484        statements.append("END")
    +1485
    +1486        if self.pretty and self.text_width(statements) > self._max_text_width:
    +1487            return self.indent("\n".join(statements), skip_first=True, skip_last=True)
    +1488
    +1489        return " ".join(statements)
     
    @@ -7873,10 +7955,10 @@ Default: True
    -
    1477    def constraint_sql(self, expression: exp.Constraint) -> str:
    -1478        this = self.sql(expression, "this")
    -1479        expressions = self.expressions(expression, flat=True)
    -1480        return f"CONSTRAINT {this} {expressions}"
    +            
    1491    def constraint_sql(self, expression: exp.Constraint) -> str:
    +1492        this = self.sql(expression, "this")
    +1493        expressions = self.expressions(expression, flat=True)
    +1494        return f"CONSTRAINT {this} {expressions}"
     
    @@ -7894,10 +7976,10 @@ Default: True
    -
    1482    def extract_sql(self, expression: exp.Extract) -> str:
    -1483        this = self.sql(expression, "this")
    -1484        expression_sql = self.sql(expression, "expression")
    -1485        return f"EXTRACT({this} FROM {expression_sql})"
    +            
    1496    def extract_sql(self, expression: exp.Extract) -> str:
    +1497        this = self.sql(expression, "this")
    +1498        expression_sql = self.sql(expression, "expression")
    +1499        return f"EXTRACT({this} FROM {expression_sql})"
     
    @@ -7915,15 +7997,15 @@ Default: True
    -
    1487    def trim_sql(self, expression: exp.Trim) -> str:
    -1488        trim_type = self.sql(expression, "position")
    -1489
    -1490        if trim_type == "LEADING":
    -1491            return self.func("LTRIM", expression.this)
    -1492        elif trim_type == "TRAILING":
    -1493            return self.func("RTRIM", expression.this)
    -1494        else:
    -1495            return self.func("TRIM", expression.this, expression.expression)
    +            
    1501    def trim_sql(self, expression: exp.Trim) -> str:
    +1502        trim_type = self.sql(expression, "position")
    +1503
    +1504        if trim_type == "LEADING":
    +1505            return self.func("LTRIM", expression.this)
    +1506        elif trim_type == "TRAILING":
    +1507            return self.func("RTRIM", expression.this)
    +1508        else:
    +1509            return self.func("TRIM", expression.this, expression.expression)
     
    @@ -7941,10 +8023,10 @@ Default: True
    -
    1497    def concat_sql(self, expression: exp.Concat) -> str:
    -1498        if len(expression.expressions) == 1:
    -1499            return self.sql(expression.expressions[0])
    -1500        return self.function_fallback_sql(expression)
    +            
    1511    def concat_sql(self, expression: exp.Concat) -> str:
    +1512        if len(expression.expressions) == 1:
    +1513            return self.sql(expression.expressions[0])
    +1514        return self.function_fallback_sql(expression)
     
    @@ -7962,9 +8044,9 @@ Default: True
    -
    1502    def check_sql(self, expression: exp.Check) -> str:
    -1503        this = self.sql(expression, key="this")
    -1504        return f"CHECK ({this})"
    +            
    1516    def check_sql(self, expression: exp.Check) -> str:
    +1517        this = self.sql(expression, key="this")
    +1518        return f"CHECK ({this})"
     
    @@ -7982,15 +8064,15 @@ Default: True
    -
    1506    def foreignkey_sql(self, expression: exp.ForeignKey) -> str:
    -1507        expressions = self.expressions(expression, flat=True)
    -1508        reference = self.sql(expression, "reference")
    -1509        reference = f" {reference}" if reference else ""
    -1510        delete = self.sql(expression, "delete")
    -1511        delete = f" ON DELETE {delete}" if delete else ""
    -1512        update = self.sql(expression, "update")
    -1513        update = f" ON UPDATE {update}" if update else ""
    -1514        return f"FOREIGN KEY ({expressions}){reference}{delete}{update}"
    +            
    1520    def foreignkey_sql(self, expression: exp.ForeignKey) -> str:
    +1521        expressions = self.expressions(expression, flat=True)
    +1522        reference = self.sql(expression, "reference")
    +1523        reference = f" {reference}" if reference else ""
    +1524        delete = self.sql(expression, "delete")
    +1525        delete = f" ON DELETE {delete}" if delete else ""
    +1526        update = self.sql(expression, "update")
    +1527        update = f" ON UPDATE {update}" if update else ""
    +1528        return f"FOREIGN KEY ({expressions}){reference}{delete}{update}"
     
    @@ -8008,11 +8090,11 @@ Default: True
    -
    1516    def primarykey_sql(self, expression: exp.ForeignKey) -> str:
    -1517        expressions = self.expressions(expression, flat=True)
    -1518        options = self.expressions(expression, "options", flat=True, sep=" ")
    -1519        options = f" {options}" if options else ""
    -1520        return f"PRIMARY KEY ({expressions}){options}"
    +            
    1530    def primarykey_sql(self, expression: exp.ForeignKey) -> str:
    +1531        expressions = self.expressions(expression, flat=True)
    +1532        options = self.expressions(expression, "options", flat=True, sep=" ")
    +1533        options = f" {options}" if options else ""
    +1534        return f"PRIMARY KEY ({expressions}){options}"
     
    @@ -8030,9 +8112,9 @@ Default: True
    -
    1522    def unique_sql(self, expression: exp.Unique) -> str:
    -1523        columns = self.expressions(expression, key="expressions")
    -1524        return f"UNIQUE ({columns})"
    +            
    1536    def unique_sql(self, expression: exp.Unique) -> str:
    +1537        columns = self.expressions(expression, key="expressions")
    +1538        return f"UNIQUE ({columns})"
     
    @@ -8050,10 +8132,10 @@ Default: True
    -
    1526    def if_sql(self, expression: exp.If) -> str:
    -1527        return self.case_sql(
    -1528            exp.Case(ifs=[expression.copy()], default=expression.args.get("false"))
    -1529        )
    +            
    1540    def if_sql(self, expression: exp.If) -> str:
    +1541        return self.case_sql(
    +1542            exp.Case(ifs=[expression.copy()], default=expression.args.get("false"))
    +1543        )
     
    @@ -8071,22 +8153,22 @@ Default: True
    -
    1531    def in_sql(self, expression: exp.In) -> str:
    -1532        query = expression.args.get("query")
    -1533        unnest = expression.args.get("unnest")
    -1534        field = expression.args.get("field")
    -1535        is_global = " GLOBAL" if expression.args.get("is_global") else ""
    -1536
    -1537        if query:
    -1538            in_sql = self.wrap(query)
    -1539        elif unnest:
    -1540            in_sql = self.in_unnest_op(unnest)
    -1541        elif field:
    -1542            in_sql = self.sql(field)
    -1543        else:
    -1544            in_sql = f"({self.expressions(expression, flat=True)})"
    -1545
    -1546        return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}"
    +            
    1545    def in_sql(self, expression: exp.In) -> str:
    +1546        query = expression.args.get("query")
    +1547        unnest = expression.args.get("unnest")
    +1548        field = expression.args.get("field")
    +1549        is_global = " GLOBAL" if expression.args.get("is_global") else ""
    +1550
    +1551        if query:
    +1552            in_sql = self.wrap(query)
    +1553        elif unnest:
    +1554            in_sql = self.in_unnest_op(unnest)
    +1555        elif field:
    +1556            in_sql = self.sql(field)
    +1557        else:
    +1558            in_sql = f"({self.expressions(expression, flat=True)})"
    +1559
    +1560        return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}"
     
    @@ -8104,8 +8186,8 @@ Default: True
    -
    1548    def in_unnest_op(self, unnest: exp.Unnest) -> str:
    -1549        return f"(SELECT {self.sql(unnest)})"
    +            
    1562    def in_unnest_op(self, unnest: exp.Unnest) -> str:
    +1563        return f"(SELECT {self.sql(unnest)})"
     
    @@ -8123,19 +8205,19 @@ Default: True
    -
    1551    def interval_sql(self, expression: exp.Interval) -> str:
    -1552        this = expression.args.get("this")
    -1553        if this:
    -1554            this = (
    -1555                f" {this}"
    -1556                if isinstance(this, exp.Literal) or isinstance(this, exp.Paren)
    -1557                else f" ({this})"
    -1558            )
    -1559        else:
    -1560            this = ""
    -1561        unit = expression.args.get("unit")
    -1562        unit = f" {unit}" if unit else ""
    -1563        return f"INTERVAL{this}{unit}"
    +            
    1565    def interval_sql(self, expression: exp.Interval) -> str:
    +1566        this = expression.args.get("this")
    +1567        if this:
    +1568            this = (
    +1569                f" {this}"
    +1570                if isinstance(this, exp.Literal) or isinstance(this, exp.Paren)
    +1571                else f" ({this})"
    +1572            )
    +1573        else:
    +1574            this = ""
    +1575        unit = expression.args.get("unit")
    +1576        unit = f" {unit}" if unit else ""
    +1577        return f"INTERVAL{this}{unit}"
     
    @@ -8153,8 +8235,8 @@ Default: True
    -
    1565    def return_sql(self, expression: exp.Return) -> str:
    -1566        return f"RETURN {self.sql(expression, 'this')}"
    +            
    1579    def return_sql(self, expression: exp.Return) -> str:
    +1580        return f"RETURN {self.sql(expression, 'this')}"
     
    @@ -8172,13 +8254,13 @@ Default: True
    -
    1568    def reference_sql(self, expression: exp.Reference) -> str:
    -1569        this = self.sql(expression, "this")
    -1570        expressions = self.expressions(expression, flat=True)
    -1571        expressions = f"({expressions})" if expressions else ""
    -1572        options = self.expressions(expression, "options", flat=True, sep=" ")
    -1573        options = f" {options}" if options else ""
    -1574        return f"REFERENCES {this}{expressions}{options}"
    +            
    1582    def reference_sql(self, expression: exp.Reference) -> str:
    +1583        this = self.sql(expression, "this")
    +1584        expressions = self.expressions(expression, flat=True)
    +1585        expressions = f"({expressions})" if expressions else ""
    +1586        options = self.expressions(expression, "options", flat=True, sep=" ")
    +1587        options = f" {options}" if options else ""
    +1588        return f"REFERENCES {this}{expressions}{options}"
     
    @@ -8196,8 +8278,8 @@ Default: True
    -
    1576    def anonymous_sql(self, expression: exp.Anonymous) -> str:
    -1577        return self.func(expression.name, *expression.expressions)
    +            
    1590    def anonymous_sql(self, expression: exp.Anonymous) -> str:
    +1591        return self.func(expression.name, *expression.expressions)
     
    @@ -8215,14 +8297,14 @@ Default: True
    -
    1579    def paren_sql(self, expression: exp.Paren) -> str:
    -1580        if isinstance(expression.unnest(), exp.Select):
    -1581            sql = self.wrap(expression)
    -1582        else:
    -1583            sql = self.seg(self.indent(self.sql(expression, "this")), sep="")
    -1584            sql = f"({sql}{self.seg(')', sep='')}"
    -1585
    -1586        return self.prepend_ctes(expression, sql)
    +            
    1593    def paren_sql(self, expression: exp.Paren) -> str:
    +1594        if isinstance(expression.unnest(), exp.Select):
    +1595            sql = self.wrap(expression)
    +1596        else:
    +1597            sql = self.seg(self.indent(self.sql(expression, "this")), sep="")
    +1598            sql = f"({sql}{self.seg(')', sep='')}"
    +1599
    +1600        return self.prepend_ctes(expression, sql)
     
    @@ -8240,11 +8322,11 @@ Default: True
    -
    1588    def neg_sql(self, expression: exp.Neg) -> str:
    -1589        # This makes sure we don't convert "- - 5" to "--5", which is a comment
    -1590        this_sql = self.sql(expression, "this")
    -1591        sep = " " if this_sql[0] == "-" else ""
    -1592        return f"-{sep}{this_sql}"
    +            
    1602    def neg_sql(self, expression: exp.Neg) -> str:
    +1603        # This makes sure we don't convert "- - 5" to "--5", which is a comment
    +1604        this_sql = self.sql(expression, "this")
    +1605        sep = " " if this_sql[0] == "-" else ""
    +1606        return f"-{sep}{this_sql}"
     
    @@ -8262,8 +8344,8 @@ Default: True
    -
    1594    def not_sql(self, expression: exp.Not) -> str:
    -1595        return f"NOT {self.sql(expression, 'this')}"
    +            
    1608    def not_sql(self, expression: exp.Not) -> str:
    +1609        return f"NOT {self.sql(expression, 'this')}"
     
    @@ -8281,10 +8363,10 @@ Default: True
    -
    1597    def alias_sql(self, expression: exp.Alias) -> str:
    -1598        to_sql = self.sql(expression, "alias")
    -1599        to_sql = f" AS {to_sql}" if to_sql else ""
    -1600        return f"{self.sql(expression, 'this')}{to_sql}"
    +            
    1611    def alias_sql(self, expression: exp.Alias) -> str:
    +1612        to_sql = self.sql(expression, "alias")
    +1613        to_sql = f" AS {to_sql}" if to_sql else ""
    +1614        return f"{self.sql(expression, 'this')}{to_sql}"
     
    @@ -8302,8 +8384,8 @@ Default: True
    -
    1602    def aliases_sql(self, expression: exp.Aliases) -> str:
    -1603        return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})"
    +            
    1616    def aliases_sql(self, expression: exp.Aliases) -> str:
    +1617        return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})"
     
    @@ -8321,10 +8403,10 @@ Default: True
    -
    1605    def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    -1606        this = self.sql(expression, "this")
    -1607        zone = self.sql(expression, "zone")
    -1608        return f"{this} AT TIME ZONE {zone}"
    +            
    1619    def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    +1620        this = self.sql(expression, "this")
    +1621        zone = self.sql(expression, "zone")
    +1622        return f"{this} AT TIME ZONE {zone}"
     
    @@ -8342,8 +8424,8 @@ Default: True
    -
    1610    def add_sql(self, expression: exp.Add) -> str:
    -1611        return self.binary(expression, "+")
    +            
    1624    def add_sql(self, expression: exp.Add) -> str:
    +1625        return self.binary(expression, "+")
     
    @@ -8361,8 +8443,8 @@ Default: True
    -
    1613    def and_sql(self, expression: exp.And) -> str:
    -1614        return self.connector_sql(expression, "AND")
    +            
    1627    def and_sql(self, expression: exp.And) -> str:
    +1628        return self.connector_sql(expression, "AND")
     
    @@ -8380,13 +8462,13 @@ Default: True
    -
    1616    def connector_sql(self, expression: exp.Connector, op: str) -> str:
    -1617        if not self.pretty:
    -1618            return self.binary(expression, op)
    -1619
    -1620        sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False))
    -1621        sep = "\n" if self.text_width(sqls) > self._max_text_width else " "
    -1622        return f"{sep}{op} ".join(sqls)
    +            
    1630    def connector_sql(self, expression: exp.Connector, op: str) -> str:
    +1631        if not self.pretty:
    +1632            return self.binary(expression, op)
    +1633
    +1634        sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False))
    +1635        sep = "\n" if self.text_width(sqls) > self._max_text_width else " "
    +1636        return f"{sep}{op} ".join(sqls)
     
    @@ -8404,8 +8486,8 @@ Default: True
    -
    1624    def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str:
    -1625        return self.binary(expression, "&")
    +            
    1638    def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str:
    +1639        return self.binary(expression, "&")
     
    @@ -8423,8 +8505,8 @@ Default: True
    -
    1627    def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str:
    -1628        return self.binary(expression, "<<")
    +            
    1641    def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str:
    +1642        return self.binary(expression, "<<")
     
    @@ -8442,8 +8524,8 @@ Default: True
    -
    1630    def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str:
    -1631        return f"~{self.sql(expression, 'this')}"
    +            
    1644    def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str:
    +1645        return f"~{self.sql(expression, 'this')}"
     
    @@ -8461,8 +8543,8 @@ Default: True
    -
    1633    def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str:
    -1634        return self.binary(expression, "|")
    +            
    1647    def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str:
    +1648        return self.binary(expression, "|")
     
    @@ -8480,8 +8562,8 @@ Default: True
    -
    1636    def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str:
    -1637        return self.binary(expression, ">>")
    +            
    1650    def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str:
    +1651        return self.binary(expression, ">>")
     
    @@ -8499,8 +8581,8 @@ Default: True
    -
    1639    def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str:
    -1640        return self.binary(expression, "^")
    +            
    1653    def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str:
    +1654        return self.binary(expression, "^")
     
    @@ -8518,8 +8600,8 @@ Default: True
    -
    1642    def cast_sql(self, expression: exp.Cast) -> str:
    -1643        return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
    +            
    1656    def cast_sql(self, expression: exp.Cast) -> str:
    +1657        return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
     
    @@ -8537,9 +8619,9 @@ Default: True
    -
    1645    def currentdate_sql(self, expression: exp.CurrentDate) -> str:
    -1646        zone = self.sql(expression, "this")
    -1647        return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE"
    +            
    1659    def currentdate_sql(self, expression: exp.CurrentDate) -> str:
    +1660        zone = self.sql(expression, "this")
    +1661        return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE"
     
    @@ -8557,8 +8639,8 @@ Default: True
    -
    1649    def collate_sql(self, expression: exp.Collate) -> str:
    -1650        return self.binary(expression, "COLLATE")
    +            
    1663    def collate_sql(self, expression: exp.Collate) -> str:
    +1664        return self.binary(expression, "COLLATE")
     
    @@ -8576,8 +8658,8 @@ Default: True
    -
    1652    def command_sql(self, expression: exp.Command) -> str:
    -1653        return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}"
    +            
    1666    def command_sql(self, expression: exp.Command) -> str:
    +1667        return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}"
     
    @@ -8595,12 +8677,12 @@ Default: True
    -
    1655    def comment_sql(self, expression: exp.Comment) -> str:
    -1656        this = self.sql(expression, "this")
    -1657        kind = expression.args["kind"]
    -1658        exists_sql = " IF EXISTS " if expression.args.get("exists") else " "
    -1659        expression_sql = self.sql(expression, "expression")
    -1660        return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}"
    +            
    1669    def comment_sql(self, expression: exp.Comment) -> str:
    +1670        this = self.sql(expression, "this")
    +1671        kind = expression.args["kind"]
    +1672        exists_sql = " IF EXISTS " if expression.args.get("exists") else " "
    +1673        expression_sql = self.sql(expression, "expression")
    +1674        return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}"
     
    @@ -8618,8 +8700,8 @@ Default: True
    -
    1662    def transaction_sql(self, *_) -> str:
    -1663        return "BEGIN"
    +            
    1676    def transaction_sql(self, *_) -> str:
    +1677        return "BEGIN"
     
    @@ -8637,12 +8719,12 @@ Default: True
    -
    1665    def commit_sql(self, expression: exp.Commit) -> str:
    -1666        chain = expression.args.get("chain")
    -1667        if chain is not None:
    -1668            chain = " AND CHAIN" if chain else " AND NO CHAIN"
    -1669
    -1670        return f"COMMIT{chain or ''}"
    +            
    1679    def commit_sql(self, expression: exp.Commit) -> str:
    +1680        chain = expression.args.get("chain")
    +1681        if chain is not None:
    +1682            chain = " AND CHAIN" if chain else " AND NO CHAIN"
    +1683
    +1684        return f"COMMIT{chain or ''}"
     
    @@ -8660,10 +8742,10 @@ Default: True
    -
    1672    def rollback_sql(self, expression: exp.Rollback) -> str:
    -1673        savepoint = expression.args.get("savepoint")
    -1674        savepoint = f" TO {savepoint}" if savepoint else ""
    -1675        return f"ROLLBACK{savepoint}"
    +            
    1686    def rollback_sql(self, expression: exp.Rollback) -> str:
    +1687        savepoint = expression.args.get("savepoint")
    +1688        savepoint = f" TO {savepoint}" if savepoint else ""
    +1689        return f"ROLLBACK{savepoint}"
     
    @@ -8681,25 +8763,25 @@ Default: True
    -
    1677    def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    -1678        this = self.sql(expression, "this")
    -1679
    -1680        dtype = self.sql(expression, "dtype")
    -1681        if dtype:
    -1682            collate = self.sql(expression, "collate")
    -1683            collate = f" COLLATE {collate}" if collate else ""
    -1684            using = self.sql(expression, "using")
    -1685            using = f" USING {using}" if using else ""
    -1686            return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}"
    -1687
    -1688        default = self.sql(expression, "default")
    -1689        if default:
    -1690            return f"ALTER COLUMN {this} SET DEFAULT {default}"
    -1691
    -1692        if not expression.args.get("drop"):
    -1693            self.unsupported("Unsupported ALTER COLUMN syntax")
    -1694
    -1695        return f"ALTER COLUMN {this} DROP DEFAULT"
    +            
    1691    def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    +1692        this = self.sql(expression, "this")
    +1693
    +1694        dtype = self.sql(expression, "dtype")
    +1695        if dtype:
    +1696            collate = self.sql(expression, "collate")
    +1697            collate = f" COLLATE {collate}" if collate else ""
    +1698            using = self.sql(expression, "using")
    +1699            using = f" USING {using}" if using else ""
    +1700            return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}"
    +1701
    +1702        default = self.sql(expression, "default")
    +1703        if default:
    +1704            return f"ALTER COLUMN {this} SET DEFAULT {default}"
    +1705
    +1706        if not expression.args.get("drop"):
    +1707            self.unsupported("Unsupported ALTER COLUMN syntax")
    +1708
    +1709        return f"ALTER COLUMN {this} DROP DEFAULT"
     
    @@ -8717,9 +8799,9 @@ Default: True
    -
    1697    def renametable_sql(self, expression: exp.RenameTable) -> str:
    -1698        this = self.sql(expression, "this")
    -1699        return f"RENAME TO {this}"
    +            
    1711    def renametable_sql(self, expression: exp.RenameTable) -> str:
    +1712        this = self.sql(expression, "this")
    +1713        return f"RENAME TO {this}"
     
    @@ -8737,20 +8819,20 @@ Default: True
    -
    1701    def altertable_sql(self, expression: exp.AlterTable) -> str:
    -1702        actions = expression.args["actions"]
    -1703
    -1704        if isinstance(actions[0], exp.ColumnDef):
    -1705            actions = self.expressions(expression, "actions", prefix="ADD COLUMN ")
    -1706        elif isinstance(actions[0], exp.Schema):
    -1707            actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ")
    -1708        elif isinstance(actions[0], exp.Delete):
    -1709            actions = self.expressions(expression, "actions", flat=True)
    -1710        else:
    -1711            actions = self.expressions(expression, "actions")
    -1712
    -1713        exists = " IF EXISTS" if expression.args.get("exists") else ""
    -1714        return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}"
    +            
    1715    def altertable_sql(self, expression: exp.AlterTable) -> str:
    +1716        actions = expression.args["actions"]
    +1717
    +1718        if isinstance(actions[0], exp.ColumnDef):
    +1719            actions = self.expressions(expression, "actions", prefix="ADD COLUMN ")
    +1720        elif isinstance(actions[0], exp.Schema):
    +1721            actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ")
    +1722        elif isinstance(actions[0], exp.Delete):
    +1723            actions = self.expressions(expression, "actions", flat=True)
    +1724        else:
    +1725            actions = self.expressions(expression, "actions")
    +1726
    +1727        exists = " IF EXISTS" if expression.args.get("exists") else ""
    +1728        return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}"
     
    @@ -8768,10 +8850,10 @@ Default: True
    -
    1716    def droppartition_sql(self, expression: exp.DropPartition) -> str:
    -1717        expressions = self.expressions(expression)
    -1718        exists = " IF EXISTS " if expression.args.get("exists") else " "
    -1719        return f"DROP{exists}{expressions}"
    +            
    1730    def droppartition_sql(self, expression: exp.DropPartition) -> str:
    +1731        expressions = self.expressions(expression)
    +1732        exists = " IF EXISTS " if expression.args.get("exists") else " "
    +1733        return f"DROP{exists}{expressions}"
     
    @@ -8789,16 +8871,16 @@ Default: True
    -
    1721    def addconstraint_sql(self, expression: exp.AddConstraint) -> str:
    -1722        this = self.sql(expression, "this")
    -1723        expression_ = self.sql(expression, "expression")
    -1724        add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD"
    -1725
    -1726        enforced = expression.args.get("enforced")
    -1727        if enforced is not None:
    -1728            return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}"
    -1729
    -1730        return f"{add_constraint} {expression_}"
    +            
    1735    def addconstraint_sql(self, expression: exp.AddConstraint) -> str:
    +1736        this = self.sql(expression, "this")
    +1737        expression_ = self.sql(expression, "expression")
    +1738        add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD"
    +1739
    +1740        enforced = expression.args.get("enforced")
    +1741        if enforced is not None:
    +1742            return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}"
    +1743
    +1744        return f"{add_constraint} {expression_}"
     
    @@ -8816,13 +8898,13 @@ Default: True
    -
    1732    def distinct_sql(self, expression: exp.Distinct) -> str:
    -1733        this = self.expressions(expression, flat=True)
    -1734        this = f" {this}" if this else ""
    -1735
    -1736        on = self.sql(expression, "on")
    -1737        on = f" ON {on}" if on else ""
    -1738        return f"DISTINCT{this}{on}"
    +            
    1746    def distinct_sql(self, expression: exp.Distinct) -> str:
    +1747        this = self.expressions(expression, flat=True)
    +1748        this = f" {this}" if this else ""
    +1749
    +1750        on = self.sql(expression, "on")
    +1751        on = f" ON {on}" if on else ""
    +1752        return f"DISTINCT{this}{on}"
     
    @@ -8840,8 +8922,8 @@ Default: True
    -
    1740    def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str:
    -1741        return f"{self.sql(expression, 'this')} IGNORE NULLS"
    +            
    1754    def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str:
    +1755        return f"{self.sql(expression, 'this')} IGNORE NULLS"
     
    @@ -8859,8 +8941,8 @@ Default: True
    -
    1743    def respectnulls_sql(self, expression: exp.RespectNulls) -> str:
    -1744        return f"{self.sql(expression, 'this')} RESPECT NULLS"
    +            
    1757    def respectnulls_sql(self, expression: exp.RespectNulls) -> str:
    +1758        return f"{self.sql(expression, 'this')} RESPECT NULLS"
     
    @@ -8878,13 +8960,9 @@ Default: True
    -
    1746    def intdiv_sql(self, expression: exp.IntDiv) -> str:
    -1747        return self.sql(
    -1748            exp.Cast(
    -1749                this=exp.Div(this=expression.this, expression=expression.expression),
    -1750                to=exp.DataType(this=exp.DataType.Type.INT),
    -1751            )
    -1752        )
    +            
    1760    def intdiv_sql(self, expression: exp.IntDiv) -> str:
    +1761        div = self.binary(expression, "/")
    +1762        return self.sql(exp.Cast(this=div, to=exp.DataType.build("INT")))
     
    @@ -8902,8 +8980,8 @@ Default: True
    -
    1754    def dpipe_sql(self, expression: exp.DPipe) -> str:
    -1755        return self.binary(expression, "||")
    +            
    1764    def dpipe_sql(self, expression: exp.DPipe) -> str:
    +1765        return self.binary(expression, "||")
     
    @@ -8921,8 +8999,36 @@ Default: True
    -
    1757    def div_sql(self, expression: exp.Div) -> str:
    -1758        return self.binary(expression, "/")
    +            
    1767    def div_sql(self, expression: exp.Div) -> str:
    +1768        div = self.binary(expression, "/")
    +1769
    +1770        if not self.INTEGER_DIVISION:
    +1771            return self.sql(exp.Cast(this=div, to=exp.DataType.build("INT")))
    +1772
    +1773        return div
    +
    + + + + +
    +
    + +
    + + def + floatdiv_sql(self, expression: sqlglot.expressions.FloatDiv) -> str: + + + +
    + +
    1775    def floatdiv_sql(self, expression: exp.FloatDiv) -> str:
    +1776        if self.INTEGER_DIVISION:
    +1777            this = exp.Cast(this=expression.this, to=exp.DataType.build("DOUBLE"))
    +1778            return self.div_sql(exp.Div(this=this, expression=expression.expression))
    +1779
    +1780        return self.binary(expression, "/")
     
    @@ -8940,8 +9046,8 @@ Default: True
    -
    1760    def overlaps_sql(self, expression: exp.Overlaps) -> str:
    -1761        return self.binary(expression, "OVERLAPS")
    +            
    1782    def overlaps_sql(self, expression: exp.Overlaps) -> str:
    +1783        return self.binary(expression, "OVERLAPS")
     
    @@ -8959,8 +9065,8 @@ Default: True
    -
    1763    def distance_sql(self, expression: exp.Distance) -> str:
    -1764        return self.binary(expression, "<->")
    +            
    1785    def distance_sql(self, expression: exp.Distance) -> str:
    +1786        return self.binary(expression, "<->")
     
    @@ -8978,8 +9084,8 @@ Default: True
    -
    1766    def dot_sql(self, expression: exp.Dot) -> str:
    -1767        return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}"
    +            
    1788    def dot_sql(self, expression: exp.Dot) -> str:
    +1789        return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}"
     
    @@ -8997,8 +9103,8 @@ Default: True
    -
    1769    def eq_sql(self, expression: exp.EQ) -> str:
    -1770        return self.binary(expression, "=")
    +            
    1791    def eq_sql(self, expression: exp.EQ) -> str:
    +1792        return self.binary(expression, "=")
     
    @@ -9016,8 +9122,8 @@ Default: True
    -
    1772    def escape_sql(self, expression: exp.Escape) -> str:
    -1773        return self.binary(expression, "ESCAPE")
    +            
    1794    def escape_sql(self, expression: exp.Escape) -> str:
    +1795        return self.binary(expression, "ESCAPE")
     
    @@ -9035,8 +9141,8 @@ Default: True
    -
    1775    def glob_sql(self, expression: exp.Glob) -> str:
    -1776        return self.binary(expression, "GLOB")
    +            
    1797    def glob_sql(self, expression: exp.Glob) -> str:
    +1798        return self.binary(expression, "GLOB")
     
    @@ -9054,8 +9160,8 @@ Default: True
    -
    1778    def gt_sql(self, expression: exp.GT) -> str:
    -1779        return self.binary(expression, ">")
    +            
    1800    def gt_sql(self, expression: exp.GT) -> str:
    +1801        return self.binary(expression, ">")
     
    @@ -9073,8 +9179,8 @@ Default: True
    -
    1781    def gte_sql(self, expression: exp.GTE) -> str:
    -1782        return self.binary(expression, ">=")
    +            
    1803    def gte_sql(self, expression: exp.GTE) -> str:
    +1804        return self.binary(expression, ">=")
     
    @@ -9092,8 +9198,8 @@ Default: True
    -
    1784    def ilike_sql(self, expression: exp.ILike) -> str:
    -1785        return self.binary(expression, "ILIKE")
    +            
    1806    def ilike_sql(self, expression: exp.ILike) -> str:
    +1807        return self.binary(expression, "ILIKE")
     
    @@ -9111,8 +9217,8 @@ Default: True
    -
    1787    def is_sql(self, expression: exp.Is) -> str:
    -1788        return self.binary(expression, "IS")
    +            
    1809    def is_sql(self, expression: exp.Is) -> str:
    +1810        return self.binary(expression, "IS")
     
    @@ -9130,8 +9236,8 @@ Default: True
    -
    1790    def like_sql(self, expression: exp.Like) -> str:
    -1791        return self.binary(expression, "LIKE")
    +            
    1812    def like_sql(self, expression: exp.Like) -> str:
    +1813        return self.binary(expression, "LIKE")
     
    @@ -9149,8 +9255,8 @@ Default: True
    -
    1793    def similarto_sql(self, expression: exp.SimilarTo) -> str:
    -1794        return self.binary(expression, "SIMILAR TO")
    +            
    1815    def similarto_sql(self, expression: exp.SimilarTo) -> str:
    +1816        return self.binary(expression, "SIMILAR TO")
     
    @@ -9168,8 +9274,8 @@ Default: True
    -
    1796    def lt_sql(self, expression: exp.LT) -> str:
    -1797        return self.binary(expression, "<")
    +            
    1818    def lt_sql(self, expression: exp.LT) -> str:
    +1819        return self.binary(expression, "<")
     
    @@ -9187,8 +9293,8 @@ Default: True
    -
    1799    def lte_sql(self, expression: exp.LTE) -> str:
    -1800        return self.binary(expression, "<=")
    +            
    1821    def lte_sql(self, expression: exp.LTE) -> str:
    +1822        return self.binary(expression, "<=")
     
    @@ -9206,8 +9312,8 @@ Default: True
    -
    1802    def mod_sql(self, expression: exp.Mod) -> str:
    -1803        return self.binary(expression, "%")
    +            
    1824    def mod_sql(self, expression: exp.Mod) -> str:
    +1825        return self.binary(expression, "%")
     
    @@ -9225,8 +9331,8 @@ Default: True
    -
    1805    def mul_sql(self, expression: exp.Mul) -> str:
    -1806        return self.binary(expression, "*")
    +            
    1827    def mul_sql(self, expression: exp.Mul) -> str:
    +1828        return self.binary(expression, "*")
     
    @@ -9244,8 +9350,8 @@ Default: True
    -
    1808    def neq_sql(self, expression: exp.NEQ) -> str:
    -1809        return self.binary(expression, "<>")
    +            
    1830    def neq_sql(self, expression: exp.NEQ) -> str:
    +1831        return self.binary(expression, "<>")
     
    @@ -9263,8 +9369,8 @@ Default: True
    -
    1811    def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str:
    -1812        return self.binary(expression, "IS NOT DISTINCT FROM")
    +            
    1833    def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str:
    +1834        return self.binary(expression, "IS NOT DISTINCT FROM")
     
    @@ -9282,8 +9388,8 @@ Default: True
    -
    1814    def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str:
    -1815        return self.binary(expression, "IS DISTINCT FROM")
    +            
    1836    def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str:
    +1837        return self.binary(expression, "IS DISTINCT FROM")
     
    @@ -9301,8 +9407,8 @@ Default: True
    -
    1817    def or_sql(self, expression: exp.Or) -> str:
    -1818        return self.connector_sql(expression, "OR")
    +            
    1839    def or_sql(self, expression: exp.Or) -> str:
    +1840        return self.connector_sql(expression, "OR")
     
    @@ -9320,8 +9426,8 @@ Default: True
    -
    1820    def slice_sql(self, expression: exp.Slice) -> str:
    -1821        return self.binary(expression, ":")
    +            
    1842    def slice_sql(self, expression: exp.Slice) -> str:
    +1843        return self.binary(expression, ":")
     
    @@ -9339,8 +9445,8 @@ Default: True
    -
    1823    def sub_sql(self, expression: exp.Sub) -> str:
    -1824        return self.binary(expression, "-")
    +            
    1845    def sub_sql(self, expression: exp.Sub) -> str:
    +1846        return self.binary(expression, "-")
     
    @@ -9358,8 +9464,8 @@ Default: True
    -
    1826    def trycast_sql(self, expression: exp.TryCast) -> str:
    -1827        return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
    +            
    1848    def trycast_sql(self, expression: exp.TryCast) -> str:
    +1849        return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
     
    @@ -9377,12 +9483,12 @@ Default: True
    -
    1829    def use_sql(self, expression: exp.Use) -> str:
    -1830        kind = self.sql(expression, "kind")
    -1831        kind = f" {kind}" if kind else ""
    -1832        this = self.sql(expression, "this")
    -1833        this = f" {this}" if this else ""
    -1834        return f"USE{kind}{this}"
    +            
    1851    def use_sql(self, expression: exp.Use) -> str:
    +1852        kind = self.sql(expression, "kind")
    +1853        kind = f" {kind}" if kind else ""
    +1854        this = self.sql(expression, "this")
    +1855        this = f" {this}" if this else ""
    +1856        return f"USE{kind}{this}"
     
    @@ -9400,8 +9506,8 @@ Default: True
    -
    1836    def binary(self, expression: exp.Binary, op: str) -> str:
    -1837        return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}"
    +            
    1858    def binary(self, expression: exp.Binary, op: str) -> str:
    +1859        return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}"
     
    @@ -9419,16 +9525,16 @@ Default: True
    -
    1839    def function_fallback_sql(self, expression: exp.Func) -> str:
    -1840        args = []
    -1841        for arg_value in expression.args.values():
    -1842            if isinstance(arg_value, list):
    -1843                for value in arg_value:
    -1844                    args.append(value)
    -1845            else:
    -1846                args.append(arg_value)
    -1847
    -1848        return self.func(expression.sql_name(), *args)
    +            
    1861    def function_fallback_sql(self, expression: exp.Func) -> str:
    +1862        args = []
    +1863        for arg_value in expression.args.values():
    +1864            if isinstance(arg_value, list):
    +1865                for value in arg_value:
    +1866                    args.append(value)
    +1867            else:
    +1868                args.append(arg_value)
    +1869
    +1870        return self.func(expression.sql_name(), *args)
     
    @@ -9446,8 +9552,8 @@ Default: True
    -
    1850    def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str:
    -1851        return f"{self.normalize_func(name)}({self.format_args(*args)})"
    +            
    1872    def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str:
    +1873        return f"{self.normalize_func(name)}({self.format_args(*args)})"
     
    @@ -9465,11 +9571,11 @@ Default: True
    -
    1853    def format_args(self, *args: t.Optional[str | exp.Expression]) -> str:
    -1854        arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None)
    -1855        if self.pretty and self.text_width(arg_sqls) > self._max_text_width:
    -1856            return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True)
    -1857        return ", ".join(arg_sqls)
    +            
    1875    def format_args(self, *args: t.Optional[str | exp.Expression]) -> str:
    +1876        arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None)
    +1877        if self.pretty and self.text_width(arg_sqls) > self._max_text_width:
    +1878            return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True)
    +1879        return ", ".join(arg_sqls)
     
    @@ -9487,8 +9593,8 @@ Default: True
    -
    1859    def text_width(self, args: t.Iterable) -> int:
    -1860        return sum(len(arg) for arg in args)
    +            
    1881    def text_width(self, args: t.Iterable) -> int:
    +1882        return sum(len(arg) for arg in args)
     
    @@ -9506,8 +9612,8 @@ Default: True
    -
    1862    def format_time(self, expression: exp.Expression) -> t.Optional[str]:
    -1863        return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie)
    +            
    1884    def format_time(self, expression: exp.Expression) -> t.Optional[str]:
    +1885        return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie)
     
    @@ -9525,46 +9631,46 @@ Default: True
    -
    1865    def expressions(
    -1866        self,
    -1867        expression: exp.Expression,
    -1868        key: t.Optional[str] = None,
    -1869        flat: bool = False,
    -1870        indent: bool = True,
    -1871        sep: str = ", ",
    -1872        prefix: str = "",
    -1873    ) -> str:
    -1874        expressions = expression.args.get(key or "expressions")
    -1875
    -1876        if not expressions:
    -1877            return ""
    -1878
    -1879        if flat:
    -1880            return sep.join(self.sql(e) for e in expressions)
    -1881
    -1882        num_sqls = len(expressions)
    -1883
    -1884        # These are calculated once in case we have the leading_comma / pretty option set, correspondingly
    -1885        pad = " " * self.pad
    -1886        stripped_sep = sep.strip()
    -1887
    -1888        result_sqls = []
    -1889        for i, e in enumerate(expressions):
    -1890            sql = self.sql(e, comment=False)
    -1891            comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else ""
    -1892
    -1893            if self.pretty:
    -1894                if self._leading_comma:
    -1895                    result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}")
    -1896                else:
    -1897                    result_sqls.append(
    -1898                        f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}"
    -1899                    )
    -1900            else:
    -1901                result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}")
    -1902
    -1903        result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls)
    -1904        return self.indent(result_sql, skip_first=False) if indent else result_sql
    +            
    1887    def expressions(
    +1888        self,
    +1889        expression: exp.Expression,
    +1890        key: t.Optional[str] = None,
    +1891        flat: bool = False,
    +1892        indent: bool = True,
    +1893        sep: str = ", ",
    +1894        prefix: str = "",
    +1895    ) -> str:
    +1896        expressions = expression.args.get(key or "expressions")
    +1897
    +1898        if not expressions:
    +1899            return ""
    +1900
    +1901        if flat:
    +1902            return sep.join(self.sql(e) for e in expressions)
    +1903
    +1904        num_sqls = len(expressions)
    +1905
    +1906        # These are calculated once in case we have the leading_comma / pretty option set, correspondingly
    +1907        pad = " " * self.pad
    +1908        stripped_sep = sep.strip()
    +1909
    +1910        result_sqls = []
    +1911        for i, e in enumerate(expressions):
    +1912            sql = self.sql(e, comment=False)
    +1913            comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else ""
    +1914
    +1915            if self.pretty:
    +1916                if self._leading_comma:
    +1917                    result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}")
    +1918                else:
    +1919                    result_sqls.append(
    +1920                        f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}"
    +1921                    )
    +1922            else:
    +1923                result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}")
    +1924
    +1925        result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls)
    +1926        return self.indent(result_sql, skip_first=False) if indent else result_sql
     
    @@ -9582,12 +9688,12 @@ Default: True
    -
    1906    def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str:
    -1907        flat = flat or isinstance(expression.parent, exp.Properties)
    -1908        expressions_sql = self.expressions(expression, flat=flat)
    -1909        if flat:
    -1910            return f"{op} {expressions_sql}"
    -1911        return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}"
    +            
    1928    def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str:
    +1929        flat = flat or isinstance(expression.parent, exp.Properties)
    +1930        expressions_sql = self.expressions(expression, flat=flat)
    +1931        if flat:
    +1932            return f"{op} {expressions_sql}"
    +1933        return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}"
     
    @@ -9605,11 +9711,11 @@ Default: True
    -
    1913    def naked_property(self, expression: exp.Property) -> str:
    -1914        property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__)
    -1915        if not property_name:
    -1916            self.unsupported(f"Unsupported property {expression.__class__.__name__}")
    -1917        return f"{property_name} {self.sql(expression, 'this')}"
    +            
    1935    def naked_property(self, expression: exp.Property) -> str:
    +1936        property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__)
    +1937        if not property_name:
    +1938            self.unsupported(f"Unsupported property {expression.__class__.__name__}")
    +1939        return f"{property_name} {self.sql(expression, 'this')}"
     
    @@ -9627,12 +9733,12 @@ Default: True
    -
    1919    def set_operation(self, expression: exp.Expression, op: str) -> str:
    -1920        this = self.sql(expression, "this")
    -1921        op = self.seg(op)
    -1922        return self.query_modifiers(
    -1923            expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}"
    -1924        )
    +            
    1941    def set_operation(self, expression: exp.Expression, op: str) -> str:
    +1942        this = self.sql(expression, "this")
    +1943        op = self.seg(op)
    +1944        return self.query_modifiers(
    +1945            expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}"
    +1946        )
     
    @@ -9650,8 +9756,8 @@ Default: True
    -
    1926    def tag_sql(self, expression: exp.Tag) -> str:
    -1927        return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}"
    +            
    1948    def tag_sql(self, expression: exp.Tag) -> str:
    +1949        return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}"
     
    @@ -9669,8 +9775,8 @@ Default: True
    -
    1929    def token_sql(self, token_type: TokenType) -> str:
    -1930        return self.TOKEN_MAPPING.get(token_type, token_type.name)
    +            
    1951    def token_sql(self, token_type: TokenType) -> str:
    +1952        return self.TOKEN_MAPPING.get(token_type, token_type.name)
     
    @@ -9688,13 +9794,13 @@ Default: True
    -
    1932    def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str:
    -1933        this = self.sql(expression, "this")
    -1934        expressions = self.no_identify(self.expressions, expression)
    -1935        expressions = (
    -1936            self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}"
    -1937        )
    -1938        return f"{this}{expressions}"
    +            
    1954    def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str:
    +1955        this = self.sql(expression, "this")
    +1956        expressions = self.no_identify(self.expressions, expression)
    +1957        expressions = (
    +1958            self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}"
    +1959        )
    +1960        return f"{this}{expressions}"
     
    @@ -9712,10 +9818,10 @@ Default: True
    -
    1940    def joinhint_sql(self, expression: exp.JoinHint) -> str:
    -1941        this = self.sql(expression, "this")
    -1942        expressions = self.expressions(expression, flat=True)
    -1943        return f"{this}({expressions})"
    +            
    1962    def joinhint_sql(self, expression: exp.JoinHint) -> str:
    +1963        this = self.sql(expression, "this")
    +1964        expressions = self.expressions(expression, flat=True)
    +1965        return f"{this}({expressions})"
     
    @@ -9733,8 +9839,8 @@ Default: True
    -
    1945    def kwarg_sql(self, expression: exp.Kwarg) -> str:
    -1946        return self.binary(expression, "=>")
    +            
    1967    def kwarg_sql(self, expression: exp.Kwarg) -> str:
    +1968        return self.binary(expression, "=>")
     
    @@ -9752,21 +9858,25 @@ Default: True
    -
    1948    def when_sql(self, expression: exp.When) -> str:
    -1949        this = self.sql(expression, "this")
    -1950        then_expression = expression.args.get("then")
    -1951        if isinstance(then_expression, exp.Insert):
    -1952            then = f"INSERT {self.sql(then_expression, 'this')}"
    -1953            if "expression" in then_expression.args:
    -1954                then += f" VALUES {self.sql(then_expression, 'expression')}"
    -1955        elif isinstance(then_expression, exp.Update):
    -1956            if isinstance(then_expression.args.get("expressions"), exp.Star):
    -1957                then = f"UPDATE {self.sql(then_expression, 'expressions')}"
    -1958            else:
    -1959                then = f"UPDATE SET {self.expressions(then_expression, flat=True)}"
    -1960        else:
    -1961            then = self.sql(then_expression)
    -1962        return f"WHEN {this} THEN {then}"
    +            
    1970    def when_sql(self, expression: exp.When) -> str:
    +1971        matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED"
    +1972        source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else ""
    +1973        condition = self.sql(expression, "condition")
    +1974        condition = f" AND {condition}" if condition else ""
    +1975
    +1976        then_expression = expression.args.get("then")
    +1977        if isinstance(then_expression, exp.Insert):
    +1978            then = f"INSERT {self.sql(then_expression, 'this')}"
    +1979            if "expression" in then_expression.args:
    +1980                then += f" VALUES {self.sql(then_expression, 'expression')}"
    +1981        elif isinstance(then_expression, exp.Update):
    +1982            if isinstance(then_expression.args.get("expressions"), exp.Star):
    +1983                then = f"UPDATE {self.sql(then_expression, 'expressions')}"
    +1984            else:
    +1985                then = f"UPDATE SET {self.expressions(then_expression, flat=True)}"
    +1986        else:
    +1987            then = self.sql(then_expression)
    +1988        return f"WHEN {matched}{source}{condition} THEN {then}"
     
    @@ -9784,11 +9894,11 @@ Default: True
    -
    1964    def merge_sql(self, expression: exp.Merge) -> str:
    -1965        this = self.sql(expression, "this")
    -1966        using = f"USING {self.sql(expression, 'using')}"
    -1967        on = f"ON {self.sql(expression, 'on')}"
    -1968        return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}"
    +            
    1990    def merge_sql(self, expression: exp.Merge) -> str:
    +1991        this = self.sql(expression, "this")
    +1992        using = f"USING {self.sql(expression, 'using')}"
    +1993        on = f"ON {self.sql(expression, 'on')}"
    +1994        return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}"
     
    diff --git a/docs/sqlglot/lineage.html b/docs/sqlglot/lineage.html index 196798b..98c3ce6 100644 --- a/docs/sqlglot/lineage.html +++ b/docs/sqlglot/lineage.html @@ -413,7 +413,7 @@
    def - lineage( column: str | sqlglot.expressions.Column, sql: str | sqlglot.expressions.Expression, schema: Union[Dict, sqlglot.schema.Schema, NoneType] = None, sources: Optional[Dict[str, str | sqlglot.expressions.Subqueryable]] = None, rules: Sequence[Callable] = (<function qualify_tables at 0x7fc261078040>, <function qualify_columns at 0x7fc26108aef0>, <function expand_laterals at 0x7fc2610896c0>), dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.lineage.Node: + lineage( column: str | sqlglot.expressions.Column, sql: str | sqlglot.expressions.Expression, schema: Union[Dict, sqlglot.schema.Schema, NoneType] = None, sources: Optional[Dict[str, str | sqlglot.expressions.Subqueryable]] = None, rules: Sequence[Callable] = (<function qualify_tables at 0x7f29a0794820>, <function qualify_columns at 0x7f29a076b6d0>, <function expand_laterals at 0x7f29a0769ea0>), dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.lineage.Node: diff --git a/docs/sqlglot/optimizer/annotate_types.html b/docs/sqlglot/optimizer/annotate_types.html index e492dc5..74dff7f 100644 --- a/docs/sqlglot/optimizer/annotate_types.html +++ b/docs/sqlglot/optimizer/annotate_types.html @@ -125,345 +125,348 @@ 55 expr, exp.DataType.Type.BIGINT 56 ), 57 exp.Avg: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), - 58 exp.Min: lambda self, expr: self._annotate_by_args(expr, "this"), - 59 exp.Max: lambda self, expr: self._annotate_by_args(expr, "this"), - 60 exp.Sum: lambda self, expr: self._annotate_by_args(expr, "this", promote=True), - 61 exp.Ceil: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 62 exp.Count: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.BIGINT), - 63 exp.CurrentDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), - 64 exp.CurrentDatetime: lambda self, expr: self._annotate_with_type( - 65 expr, exp.DataType.Type.DATETIME - 66 ), - 67 exp.CurrentTime: lambda self, expr: self._annotate_with_type( - 68 expr, exp.DataType.Type.TIMESTAMP - 69 ), - 70 exp.CurrentTimestamp: lambda self, expr: self._annotate_with_type( - 71 expr, exp.DataType.Type.TIMESTAMP - 72 ), - 73 exp.DateAdd: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), - 74 exp.DateSub: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), - 75 exp.DateDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 76 exp.DatetimeAdd: lambda self, expr: self._annotate_with_type( - 77 expr, exp.DataType.Type.DATETIME - 78 ), - 79 exp.DatetimeSub: lambda self, expr: self._annotate_with_type( - 80 expr, exp.DataType.Type.DATETIME - 81 ), - 82 exp.DatetimeDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 83 exp.Extract: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 84 exp.TimestampAdd: lambda self, expr: self._annotate_with_type( - 85 expr, exp.DataType.Type.TIMESTAMP - 86 ), - 87 exp.TimestampSub: lambda self, expr: self._annotate_with_type( - 88 expr, exp.DataType.Type.TIMESTAMP - 89 ), - 90 exp.TimestampDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 91 exp.TimeAdd: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TIMESTAMP), - 92 exp.TimeSub: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TIMESTAMP), - 93 exp.TimeDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 94 exp.DateStrToDate: lambda self, expr: self._annotate_with_type( - 95 expr, exp.DataType.Type.DATE - 96 ), - 97 exp.DateToDateStr: lambda self, expr: self._annotate_with_type( - 98 expr, exp.DataType.Type.VARCHAR - 99 ), -100 exp.DateToDi: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), -101 exp.Day: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), -102 exp.DiToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), -103 exp.Exp: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -104 exp.Floor: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), -105 exp.Case: lambda self, expr: self._annotate_by_args(expr, "default", "ifs"), -106 exp.If: lambda self, expr: self._annotate_by_args(expr, "true", "false"), -107 exp.Coalesce: lambda self, expr: self._annotate_by_args(expr, "this", "expressions"), -108 exp.IfNull: lambda self, expr: self._annotate_by_args(expr, "this", "expression"), -109 exp.ConcatWs: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -110 exp.GroupConcat: lambda self, expr: self._annotate_with_type( -111 expr, exp.DataType.Type.VARCHAR -112 ), -113 exp.ArrayConcat: lambda self, expr: self._annotate_with_type( -114 expr, exp.DataType.Type.VARCHAR -115 ), -116 exp.Initcap: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -117 exp.Length: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.BIGINT), -118 exp.Levenshtein: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), -119 exp.Ln: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -120 exp.Log: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -121 exp.Log2: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -122 exp.Log10: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -123 exp.Lower: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -124 exp.Month: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), -125 exp.Pow: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -126 exp.Quantile: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -127 exp.ApproxQuantile: lambda self, expr: self._annotate_with_type( -128 expr, exp.DataType.Type.DOUBLE -129 ), -130 exp.RegexpLike: lambda self, expr: self._annotate_with_type( -131 expr, exp.DataType.Type.BOOLEAN + 58 exp.Min: lambda self, expr: self._annotate_by_args(expr, "this", "expressions"), + 59 exp.Max: lambda self, expr: self._annotate_by_args(expr, "this", "expressions"), + 60 exp.Sum: lambda self, expr: self._annotate_by_args( + 61 expr, "this", "expressions", promote=True + 62 ), + 63 exp.Ceil: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 64 exp.Count: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.BIGINT), + 65 exp.CurrentDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), + 66 exp.CurrentDatetime: lambda self, expr: self._annotate_with_type( + 67 expr, exp.DataType.Type.DATETIME + 68 ), + 69 exp.CurrentTime: lambda self, expr: self._annotate_with_type( + 70 expr, exp.DataType.Type.TIMESTAMP + 71 ), + 72 exp.CurrentTimestamp: lambda self, expr: self._annotate_with_type( + 73 expr, exp.DataType.Type.TIMESTAMP + 74 ), + 75 exp.DateAdd: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), + 76 exp.DateSub: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), + 77 exp.DateDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 78 exp.DatetimeAdd: lambda self, expr: self._annotate_with_type( + 79 expr, exp.DataType.Type.DATETIME + 80 ), + 81 exp.DatetimeSub: lambda self, expr: self._annotate_with_type( + 82 expr, exp.DataType.Type.DATETIME + 83 ), + 84 exp.DatetimeDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 85 exp.Extract: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 86 exp.TimestampAdd: lambda self, expr: self._annotate_with_type( + 87 expr, exp.DataType.Type.TIMESTAMP + 88 ), + 89 exp.TimestampSub: lambda self, expr: self._annotate_with_type( + 90 expr, exp.DataType.Type.TIMESTAMP + 91 ), + 92 exp.TimestampDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 93 exp.TimeAdd: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TIMESTAMP), + 94 exp.TimeSub: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TIMESTAMP), + 95 exp.TimeDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 96 exp.DateStrToDate: lambda self, expr: self._annotate_with_type( + 97 expr, exp.DataType.Type.DATE + 98 ), + 99 exp.DateToDateStr: lambda self, expr: self._annotate_with_type( +100 expr, exp.DataType.Type.VARCHAR +101 ), +102 exp.DateToDi: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), +103 exp.Day: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), +104 exp.DiToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), +105 exp.Exp: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +106 exp.Floor: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), +107 exp.Case: lambda self, expr: self._annotate_by_args(expr, "default", "ifs"), +108 exp.If: lambda self, expr: self._annotate_by_args(expr, "true", "false"), +109 exp.Coalesce: lambda self, expr: self._annotate_by_args(expr, "this", "expressions"), +110 exp.IfNull: lambda self, expr: self._annotate_by_args(expr, "this", "expression"), +111 exp.ConcatWs: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +112 exp.GroupConcat: lambda self, expr: self._annotate_with_type( +113 expr, exp.DataType.Type.VARCHAR +114 ), +115 exp.ArrayConcat: lambda self, expr: self._annotate_with_type( +116 expr, exp.DataType.Type.VARCHAR +117 ), +118 exp.Initcap: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +119 exp.Least: lambda self, expr: self._annotate_by_args(expr, "expressions"), +120 exp.Length: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.BIGINT), +121 exp.Levenshtein: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), +122 exp.Ln: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +123 exp.Log: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +124 exp.Log2: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +125 exp.Log10: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +126 exp.Lower: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +127 exp.Month: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), +128 exp.Pow: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +129 exp.Quantile: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +130 exp.ApproxQuantile: lambda self, expr: self._annotate_with_type( +131 expr, exp.DataType.Type.DOUBLE 132 ), -133 exp.Round: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -134 exp.SafeDivide: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -135 exp.Substring: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -136 exp.StrPosition: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), -137 exp.StrToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), -138 exp.StrToTime: lambda self, expr: self._annotate_with_type( -139 expr, exp.DataType.Type.TIMESTAMP -140 ), -141 exp.Sqrt: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -142 exp.Stddev: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -143 exp.StddevPop: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -144 exp.StddevSamp: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -145 exp.TimeToStr: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -146 exp.TimeToTimeStr: lambda self, expr: self._annotate_with_type( -147 expr, exp.DataType.Type.VARCHAR -148 ), -149 exp.TimeStrToDate: lambda self, expr: self._annotate_with_type( -150 expr, exp.DataType.Type.DATE +133 exp.RegexpLike: lambda self, expr: self._annotate_with_type( +134 expr, exp.DataType.Type.BOOLEAN +135 ), +136 exp.Round: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +137 exp.SafeDivide: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +138 exp.Substring: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +139 exp.StrPosition: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), +140 exp.StrToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), +141 exp.StrToTime: lambda self, expr: self._annotate_with_type( +142 expr, exp.DataType.Type.TIMESTAMP +143 ), +144 exp.Sqrt: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +145 exp.Stddev: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +146 exp.StddevPop: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +147 exp.StddevSamp: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +148 exp.TimeToStr: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +149 exp.TimeToTimeStr: lambda self, expr: self._annotate_with_type( +150 expr, exp.DataType.Type.VARCHAR 151 ), -152 exp.TimeStrToTime: lambda self, expr: self._annotate_with_type( -153 expr, exp.DataType.Type.TIMESTAMP +152 exp.TimeStrToDate: lambda self, expr: self._annotate_with_type( +153 expr, exp.DataType.Type.DATE 154 ), -155 exp.Trim: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -156 exp.TsOrDsToDateStr: lambda self, expr: self._annotate_with_type( -157 expr, exp.DataType.Type.VARCHAR -158 ), -159 exp.TsOrDsToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), -160 exp.TsOrDiToDi: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), -161 exp.UnixToStr: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -162 exp.UnixToTime: lambda self, expr: self._annotate_with_type( -163 expr, exp.DataType.Type.TIMESTAMP -164 ), -165 exp.UnixToTimeStr: lambda self, expr: self._annotate_with_type( -166 expr, exp.DataType.Type.VARCHAR +155 exp.TimeStrToTime: lambda self, expr: self._annotate_with_type( +156 expr, exp.DataType.Type.TIMESTAMP +157 ), +158 exp.Trim: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +159 exp.TsOrDsToDateStr: lambda self, expr: self._annotate_with_type( +160 expr, exp.DataType.Type.VARCHAR +161 ), +162 exp.TsOrDsToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), +163 exp.TsOrDiToDi: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), +164 exp.UnixToStr: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +165 exp.UnixToTime: lambda self, expr: self._annotate_with_type( +166 expr, exp.DataType.Type.TIMESTAMP 167 ), -168 exp.Upper: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -169 exp.Variance: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -170 exp.VariancePop: lambda self, expr: self._annotate_with_type( -171 expr, exp.DataType.Type.DOUBLE -172 ), -173 exp.Week: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), -174 exp.Year: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), -175 } -176 -177 # Reference: https://spark.apache.org/docs/3.2.0/sql-ref-ansi-compliance.html -178 COERCES_TO = { -179 # CHAR < NCHAR < VARCHAR < NVARCHAR < TEXT -180 exp.DataType.Type.TEXT: set(), -181 exp.DataType.Type.NVARCHAR: {exp.DataType.Type.TEXT}, -182 exp.DataType.Type.VARCHAR: {exp.DataType.Type.NVARCHAR, exp.DataType.Type.TEXT}, -183 exp.DataType.Type.NCHAR: { -184 exp.DataType.Type.VARCHAR, -185 exp.DataType.Type.NVARCHAR, -186 exp.DataType.Type.TEXT, -187 }, -188 exp.DataType.Type.CHAR: { -189 exp.DataType.Type.NCHAR, -190 exp.DataType.Type.VARCHAR, -191 exp.DataType.Type.NVARCHAR, -192 exp.DataType.Type.TEXT, -193 }, -194 # TINYINT < SMALLINT < INT < BIGINT < DECIMAL < FLOAT < DOUBLE -195 exp.DataType.Type.DOUBLE: set(), -196 exp.DataType.Type.FLOAT: {exp.DataType.Type.DOUBLE}, -197 exp.DataType.Type.DECIMAL: {exp.DataType.Type.FLOAT, exp.DataType.Type.DOUBLE}, -198 exp.DataType.Type.BIGINT: { -199 exp.DataType.Type.DECIMAL, -200 exp.DataType.Type.FLOAT, -201 exp.DataType.Type.DOUBLE, -202 }, -203 exp.DataType.Type.INT: { -204 exp.DataType.Type.BIGINT, -205 exp.DataType.Type.DECIMAL, -206 exp.DataType.Type.FLOAT, -207 exp.DataType.Type.DOUBLE, -208 }, -209 exp.DataType.Type.SMALLINT: { -210 exp.DataType.Type.INT, -211 exp.DataType.Type.BIGINT, -212 exp.DataType.Type.DECIMAL, -213 exp.DataType.Type.FLOAT, -214 exp.DataType.Type.DOUBLE, -215 }, -216 exp.DataType.Type.TINYINT: { -217 exp.DataType.Type.SMALLINT, -218 exp.DataType.Type.INT, -219 exp.DataType.Type.BIGINT, -220 exp.DataType.Type.DECIMAL, -221 exp.DataType.Type.FLOAT, -222 exp.DataType.Type.DOUBLE, -223 }, -224 # DATE < DATETIME < TIMESTAMP < TIMESTAMPTZ < TIMESTAMPLTZ -225 exp.DataType.Type.TIMESTAMPLTZ: set(), -226 exp.DataType.Type.TIMESTAMPTZ: {exp.DataType.Type.TIMESTAMPLTZ}, -227 exp.DataType.Type.TIMESTAMP: { -228 exp.DataType.Type.TIMESTAMPTZ, -229 exp.DataType.Type.TIMESTAMPLTZ, -230 }, -231 exp.DataType.Type.DATETIME: { -232 exp.DataType.Type.TIMESTAMP, -233 exp.DataType.Type.TIMESTAMPTZ, -234 exp.DataType.Type.TIMESTAMPLTZ, -235 }, -236 exp.DataType.Type.DATE: { -237 exp.DataType.Type.DATETIME, -238 exp.DataType.Type.TIMESTAMP, -239 exp.DataType.Type.TIMESTAMPTZ, -240 exp.DataType.Type.TIMESTAMPLTZ, -241 }, -242 } -243 -244 TRAVERSABLES = (exp.Select, exp.Union, exp.UDTF, exp.Subquery) -245 -246 def __init__(self, schema=None, annotators=None, coerces_to=None): -247 self.schema = schema -248 self.annotators = annotators or self.ANNOTATORS -249 self.coerces_to = coerces_to or self.COERCES_TO -250 -251 def annotate(self, expression): -252 if isinstance(expression, self.TRAVERSABLES): -253 for scope in traverse_scope(expression): -254 selects = {} -255 for name, source in scope.sources.items(): -256 if not isinstance(source, Scope): -257 continue -258 if isinstance(source.expression, exp.UDTF): -259 values = [] -260 -261 if isinstance(source.expression, exp.Lateral): -262 if isinstance(source.expression.this, exp.Explode): -263 values = [source.expression.this.this] -264 else: -265 values = source.expression.expressions[0].expressions -266 -267 if not values: -268 continue +168 exp.UnixToTimeStr: lambda self, expr: self._annotate_with_type( +169 expr, exp.DataType.Type.VARCHAR +170 ), +171 exp.Upper: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +172 exp.Variance: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +173 exp.VariancePop: lambda self, expr: self._annotate_with_type( +174 expr, exp.DataType.Type.DOUBLE +175 ), +176 exp.Week: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), +177 exp.Year: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), +178 } +179 +180 # Reference: https://spark.apache.org/docs/3.2.0/sql-ref-ansi-compliance.html +181 COERCES_TO = { +182 # CHAR < NCHAR < VARCHAR < NVARCHAR < TEXT +183 exp.DataType.Type.TEXT: set(), +184 exp.DataType.Type.NVARCHAR: {exp.DataType.Type.TEXT}, +185 exp.DataType.Type.VARCHAR: {exp.DataType.Type.NVARCHAR, exp.DataType.Type.TEXT}, +186 exp.DataType.Type.NCHAR: { +187 exp.DataType.Type.VARCHAR, +188 exp.DataType.Type.NVARCHAR, +189 exp.DataType.Type.TEXT, +190 }, +191 exp.DataType.Type.CHAR: { +192 exp.DataType.Type.NCHAR, +193 exp.DataType.Type.VARCHAR, +194 exp.DataType.Type.NVARCHAR, +195 exp.DataType.Type.TEXT, +196 }, +197 # TINYINT < SMALLINT < INT < BIGINT < DECIMAL < FLOAT < DOUBLE +198 exp.DataType.Type.DOUBLE: set(), +199 exp.DataType.Type.FLOAT: {exp.DataType.Type.DOUBLE}, +200 exp.DataType.Type.DECIMAL: {exp.DataType.Type.FLOAT, exp.DataType.Type.DOUBLE}, +201 exp.DataType.Type.BIGINT: { +202 exp.DataType.Type.DECIMAL, +203 exp.DataType.Type.FLOAT, +204 exp.DataType.Type.DOUBLE, +205 }, +206 exp.DataType.Type.INT: { +207 exp.DataType.Type.BIGINT, +208 exp.DataType.Type.DECIMAL, +209 exp.DataType.Type.FLOAT, +210 exp.DataType.Type.DOUBLE, +211 }, +212 exp.DataType.Type.SMALLINT: { +213 exp.DataType.Type.INT, +214 exp.DataType.Type.BIGINT, +215 exp.DataType.Type.DECIMAL, +216 exp.DataType.Type.FLOAT, +217 exp.DataType.Type.DOUBLE, +218 }, +219 exp.DataType.Type.TINYINT: { +220 exp.DataType.Type.SMALLINT, +221 exp.DataType.Type.INT, +222 exp.DataType.Type.BIGINT, +223 exp.DataType.Type.DECIMAL, +224 exp.DataType.Type.FLOAT, +225 exp.DataType.Type.DOUBLE, +226 }, +227 # DATE < DATETIME < TIMESTAMP < TIMESTAMPTZ < TIMESTAMPLTZ +228 exp.DataType.Type.TIMESTAMPLTZ: set(), +229 exp.DataType.Type.TIMESTAMPTZ: {exp.DataType.Type.TIMESTAMPLTZ}, +230 exp.DataType.Type.TIMESTAMP: { +231 exp.DataType.Type.TIMESTAMPTZ, +232 exp.DataType.Type.TIMESTAMPLTZ, +233 }, +234 exp.DataType.Type.DATETIME: { +235 exp.DataType.Type.TIMESTAMP, +236 exp.DataType.Type.TIMESTAMPTZ, +237 exp.DataType.Type.TIMESTAMPLTZ, +238 }, +239 exp.DataType.Type.DATE: { +240 exp.DataType.Type.DATETIME, +241 exp.DataType.Type.TIMESTAMP, +242 exp.DataType.Type.TIMESTAMPTZ, +243 exp.DataType.Type.TIMESTAMPLTZ, +244 }, +245 } +246 +247 TRAVERSABLES = (exp.Select, exp.Union, exp.UDTF, exp.Subquery) +248 +249 def __init__(self, schema=None, annotators=None, coerces_to=None): +250 self.schema = schema +251 self.annotators = annotators or self.ANNOTATORS +252 self.coerces_to = coerces_to or self.COERCES_TO +253 +254 def annotate(self, expression): +255 if isinstance(expression, self.TRAVERSABLES): +256 for scope in traverse_scope(expression): +257 selects = {} +258 for name, source in scope.sources.items(): +259 if not isinstance(source, Scope): +260 continue +261 if isinstance(source.expression, exp.UDTF): +262 values = [] +263 +264 if isinstance(source.expression, exp.Lateral): +265 if isinstance(source.expression.this, exp.Explode): +266 values = [source.expression.this.this] +267 else: +268 values = source.expression.expressions[0].expressions 269 -270 selects[name] = { -271 alias: column -272 for alias, column in zip( -273 source.expression.alias_column_names, -274 values, -275 ) -276 } -277 else: -278 selects[name] = { -279 select.alias_or_name: select for select in source.expression.selects -280 } -281 # First annotate the current scope's column references -282 for col in scope.columns: -283 if not col.table: -284 continue -285 -286 source = scope.sources.get(col.table) -287 if isinstance(source, exp.Table): -288 col.type = self.schema.get_column_type(source, col) -289 elif source and col.table in selects and col.name in selects[col.table]: -290 col.type = selects[col.table][col.name].type -291 # Then (possibly) annotate the remaining expressions in the scope -292 self._maybe_annotate(scope.expression) -293 return self._maybe_annotate(expression) # This takes care of non-traversable expressions -294 -295 def _maybe_annotate(self, expression): -296 if not isinstance(expression, exp.Expression): -297 return None -298 -299 if expression.type: -300 return expression # We've already inferred the expression's type +270 if not values: +271 continue +272 +273 selects[name] = { +274 alias: column +275 for alias, column in zip( +276 source.expression.alias_column_names, +277 values, +278 ) +279 } +280 else: +281 selects[name] = { +282 select.alias_or_name: select for select in source.expression.selects +283 } +284 # First annotate the current scope's column references +285 for col in scope.columns: +286 if not col.table: +287 continue +288 +289 source = scope.sources.get(col.table) +290 if isinstance(source, exp.Table): +291 col.type = self.schema.get_column_type(source, col) +292 elif source and col.table in selects and col.name in selects[col.table]: +293 col.type = selects[col.table][col.name].type +294 # Then (possibly) annotate the remaining expressions in the scope +295 self._maybe_annotate(scope.expression) +296 return self._maybe_annotate(expression) # This takes care of non-traversable expressions +297 +298 def _maybe_annotate(self, expression): +299 if not isinstance(expression, exp.Expression): +300 return None 301 -302 annotator = self.annotators.get(expression.__class__) -303 -304 return ( -305 annotator(self, expression) -306 if annotator -307 else self._annotate_with_type(expression, exp.DataType.Type.UNKNOWN) -308 ) -309 -310 def _annotate_args(self, expression): -311 for value in expression.args.values(): -312 for v in ensure_collection(value): -313 self._maybe_annotate(v) -314 -315 return expression -316 -317 def _maybe_coerce(self, type1, type2): -318 # We propagate the NULL / UNKNOWN types upwards if found -319 if isinstance(type1, exp.DataType): -320 type1 = type1.this -321 if isinstance(type2, exp.DataType): -322 type2 = type2.this -323 -324 if exp.DataType.Type.NULL in (type1, type2): -325 return exp.DataType.Type.NULL -326 if exp.DataType.Type.UNKNOWN in (type1, type2): -327 return exp.DataType.Type.UNKNOWN -328 -329 return type2 if type2 in self.coerces_to.get(type1, {}) else type1 -330 -331 def _annotate_binary(self, expression): -332 self._annotate_args(expression) +302 if expression.type: +303 return expression # We've already inferred the expression's type +304 +305 annotator = self.annotators.get(expression.__class__) +306 +307 return ( +308 annotator(self, expression) +309 if annotator +310 else self._annotate_with_type(expression, exp.DataType.Type.UNKNOWN) +311 ) +312 +313 def _annotate_args(self, expression): +314 for value in expression.args.values(): +315 for v in ensure_collection(value): +316 self._maybe_annotate(v) +317 +318 return expression +319 +320 def _maybe_coerce(self, type1, type2): +321 # We propagate the NULL / UNKNOWN types upwards if found +322 if isinstance(type1, exp.DataType): +323 type1 = type1.this +324 if isinstance(type2, exp.DataType): +325 type2 = type2.this +326 +327 if exp.DataType.Type.NULL in (type1, type2): +328 return exp.DataType.Type.NULL +329 if exp.DataType.Type.UNKNOWN in (type1, type2): +330 return exp.DataType.Type.UNKNOWN +331 +332 return type2 if type2 in self.coerces_to.get(type1, {}) else type1 333 -334 left_type = expression.left.type.this -335 right_type = expression.right.type.this +334 def _annotate_binary(self, expression): +335 self._annotate_args(expression) 336 -337 if isinstance(expression, (exp.And, exp.Or)): -338 if left_type == exp.DataType.Type.NULL and right_type == exp.DataType.Type.NULL: -339 expression.type = exp.DataType.Type.NULL -340 elif exp.DataType.Type.NULL in (left_type, right_type): -341 expression.type = exp.DataType.build( -342 "NULLABLE", expressions=exp.DataType.build("BOOLEAN") -343 ) -344 else: -345 expression.type = exp.DataType.Type.BOOLEAN -346 elif isinstance(expression, (exp.Condition, exp.Predicate)): -347 expression.type = exp.DataType.Type.BOOLEAN -348 else: -349 expression.type = self._maybe_coerce(left_type, right_type) -350 -351 return expression -352 -353 def _annotate_unary(self, expression): -354 self._annotate_args(expression) +337 left_type = expression.left.type.this +338 right_type = expression.right.type.this +339 +340 if isinstance(expression, (exp.And, exp.Or)): +341 if left_type == exp.DataType.Type.NULL and right_type == exp.DataType.Type.NULL: +342 expression.type = exp.DataType.Type.NULL +343 elif exp.DataType.Type.NULL in (left_type, right_type): +344 expression.type = exp.DataType.build( +345 "NULLABLE", expressions=exp.DataType.build("BOOLEAN") +346 ) +347 else: +348 expression.type = exp.DataType.Type.BOOLEAN +349 elif isinstance(expression, (exp.Condition, exp.Predicate)): +350 expression.type = exp.DataType.Type.BOOLEAN +351 else: +352 expression.type = self._maybe_coerce(left_type, right_type) +353 +354 return expression 355 -356 if isinstance(expression, exp.Condition) and not isinstance(expression, exp.Paren): -357 expression.type = exp.DataType.Type.BOOLEAN -358 else: -359 expression.type = expression.this.type -360 -361 return expression -362 -363 def _annotate_literal(self, expression): -364 if expression.is_string: -365 expression.type = exp.DataType.Type.VARCHAR -366 elif expression.is_int: -367 expression.type = exp.DataType.Type.INT -368 else: -369 expression.type = exp.DataType.Type.DOUBLE -370 -371 return expression -372 -373 def _annotate_with_type(self, expression, target_type): -374 expression.type = target_type -375 return self._annotate_args(expression) -376 -377 def _annotate_by_args(self, expression, *args, promote=False): -378 self._annotate_args(expression) -379 expressions = [] -380 for arg in args: -381 arg_expr = expression.args.get(arg) -382 expressions.extend(expr for expr in ensure_list(arg_expr) if expr) -383 -384 last_datatype = None -385 for expr in expressions: -386 last_datatype = self._maybe_coerce(last_datatype or expr.type, expr.type) -387 -388 expression.type = last_datatype or exp.DataType.Type.UNKNOWN -389 -390 if promote: -391 if expression.type.this in exp.DataType.INTEGER_TYPES: -392 expression.type = exp.DataType.Type.BIGINT -393 elif expression.type.this in exp.DataType.FLOAT_TYPES: -394 expression.type = exp.DataType.Type.DOUBLE -395 -396 return expression +356 def _annotate_unary(self, expression): +357 self._annotate_args(expression) +358 +359 if isinstance(expression, exp.Condition) and not isinstance(expression, exp.Paren): +360 expression.type = exp.DataType.Type.BOOLEAN +361 else: +362 expression.type = expression.this.type +363 +364 return expression +365 +366 def _annotate_literal(self, expression): +367 if expression.is_string: +368 expression.type = exp.DataType.Type.VARCHAR +369 elif expression.is_int: +370 expression.type = exp.DataType.Type.INT +371 else: +372 expression.type = exp.DataType.Type.DOUBLE +373 +374 return expression +375 +376 def _annotate_with_type(self, expression, target_type): +377 expression.type = target_type +378 return self._annotate_args(expression) +379 +380 def _annotate_by_args(self, expression, *args, promote=False): +381 self._annotate_args(expression) +382 expressions = [] +383 for arg in args: +384 arg_expr = expression.args.get(arg) +385 expressions.extend(expr for expr in ensure_list(arg_expr) if expr) +386 +387 last_datatype = None +388 for expr in expressions: +389 last_datatype = self._maybe_coerce(last_datatype or expr.type, expr.type) +390 +391 expression.type = last_datatype or exp.DataType.Type.UNKNOWN +392 +393 if promote: +394 if expression.type.this in exp.DataType.INTEGER_TYPES: +395 expression.type = exp.DataType.Type.BIGINT +396 elif expression.type.this in exp.DataType.FLOAT_TYPES: +397 expression.type = exp.DataType.Type.DOUBLE +398 +399 return expression
    @@ -577,345 +580,348 @@ Assumes that we've already executed the optimizer's qualify_columns step.

    56 expr, exp.DataType.Type.BIGINT 57 ), 58 exp.Avg: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), - 59 exp.Min: lambda self, expr: self._annotate_by_args(expr, "this"), - 60 exp.Max: lambda self, expr: self._annotate_by_args(expr, "this"), - 61 exp.Sum: lambda self, expr: self._annotate_by_args(expr, "this", promote=True), - 62 exp.Ceil: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 63 exp.Count: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.BIGINT), - 64 exp.CurrentDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), - 65 exp.CurrentDatetime: lambda self, expr: self._annotate_with_type( - 66 expr, exp.DataType.Type.DATETIME - 67 ), - 68 exp.CurrentTime: lambda self, expr: self._annotate_with_type( - 69 expr, exp.DataType.Type.TIMESTAMP - 70 ), - 71 exp.CurrentTimestamp: lambda self, expr: self._annotate_with_type( - 72 expr, exp.DataType.Type.TIMESTAMP - 73 ), - 74 exp.DateAdd: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), - 75 exp.DateSub: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), - 76 exp.DateDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 77 exp.DatetimeAdd: lambda self, expr: self._annotate_with_type( - 78 expr, exp.DataType.Type.DATETIME - 79 ), - 80 exp.DatetimeSub: lambda self, expr: self._annotate_with_type( - 81 expr, exp.DataType.Type.DATETIME - 82 ), - 83 exp.DatetimeDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 84 exp.Extract: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 85 exp.TimestampAdd: lambda self, expr: self._annotate_with_type( - 86 expr, exp.DataType.Type.TIMESTAMP - 87 ), - 88 exp.TimestampSub: lambda self, expr: self._annotate_with_type( - 89 expr, exp.DataType.Type.TIMESTAMP - 90 ), - 91 exp.TimestampDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 92 exp.TimeAdd: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TIMESTAMP), - 93 exp.TimeSub: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TIMESTAMP), - 94 exp.TimeDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), - 95 exp.DateStrToDate: lambda self, expr: self._annotate_with_type( - 96 expr, exp.DataType.Type.DATE - 97 ), - 98 exp.DateToDateStr: lambda self, expr: self._annotate_with_type( - 99 expr, exp.DataType.Type.VARCHAR -100 ), -101 exp.DateToDi: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), -102 exp.Day: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), -103 exp.DiToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), -104 exp.Exp: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -105 exp.Floor: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), -106 exp.Case: lambda self, expr: self._annotate_by_args(expr, "default", "ifs"), -107 exp.If: lambda self, expr: self._annotate_by_args(expr, "true", "false"), -108 exp.Coalesce: lambda self, expr: self._annotate_by_args(expr, "this", "expressions"), -109 exp.IfNull: lambda self, expr: self._annotate_by_args(expr, "this", "expression"), -110 exp.ConcatWs: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -111 exp.GroupConcat: lambda self, expr: self._annotate_with_type( -112 expr, exp.DataType.Type.VARCHAR -113 ), -114 exp.ArrayConcat: lambda self, expr: self._annotate_with_type( -115 expr, exp.DataType.Type.VARCHAR -116 ), -117 exp.Initcap: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -118 exp.Length: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.BIGINT), -119 exp.Levenshtein: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), -120 exp.Ln: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -121 exp.Log: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -122 exp.Log2: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -123 exp.Log10: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -124 exp.Lower: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -125 exp.Month: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), -126 exp.Pow: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -127 exp.Quantile: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -128 exp.ApproxQuantile: lambda self, expr: self._annotate_with_type( -129 expr, exp.DataType.Type.DOUBLE -130 ), -131 exp.RegexpLike: lambda self, expr: self._annotate_with_type( -132 expr, exp.DataType.Type.BOOLEAN + 59 exp.Min: lambda self, expr: self._annotate_by_args(expr, "this", "expressions"), + 60 exp.Max: lambda self, expr: self._annotate_by_args(expr, "this", "expressions"), + 61 exp.Sum: lambda self, expr: self._annotate_by_args( + 62 expr, "this", "expressions", promote=True + 63 ), + 64 exp.Ceil: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 65 exp.Count: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.BIGINT), + 66 exp.CurrentDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), + 67 exp.CurrentDatetime: lambda self, expr: self._annotate_with_type( + 68 expr, exp.DataType.Type.DATETIME + 69 ), + 70 exp.CurrentTime: lambda self, expr: self._annotate_with_type( + 71 expr, exp.DataType.Type.TIMESTAMP + 72 ), + 73 exp.CurrentTimestamp: lambda self, expr: self._annotate_with_type( + 74 expr, exp.DataType.Type.TIMESTAMP + 75 ), + 76 exp.DateAdd: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), + 77 exp.DateSub: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), + 78 exp.DateDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 79 exp.DatetimeAdd: lambda self, expr: self._annotate_with_type( + 80 expr, exp.DataType.Type.DATETIME + 81 ), + 82 exp.DatetimeSub: lambda self, expr: self._annotate_with_type( + 83 expr, exp.DataType.Type.DATETIME + 84 ), + 85 exp.DatetimeDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 86 exp.Extract: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 87 exp.TimestampAdd: lambda self, expr: self._annotate_with_type( + 88 expr, exp.DataType.Type.TIMESTAMP + 89 ), + 90 exp.TimestampSub: lambda self, expr: self._annotate_with_type( + 91 expr, exp.DataType.Type.TIMESTAMP + 92 ), + 93 exp.TimestampDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 94 exp.TimeAdd: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TIMESTAMP), + 95 exp.TimeSub: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TIMESTAMP), + 96 exp.TimeDiff: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), + 97 exp.DateStrToDate: lambda self, expr: self._annotate_with_type( + 98 expr, exp.DataType.Type.DATE + 99 ), +100 exp.DateToDateStr: lambda self, expr: self._annotate_with_type( +101 expr, exp.DataType.Type.VARCHAR +102 ), +103 exp.DateToDi: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), +104 exp.Day: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), +105 exp.DiToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), +106 exp.Exp: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +107 exp.Floor: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), +108 exp.Case: lambda self, expr: self._annotate_by_args(expr, "default", "ifs"), +109 exp.If: lambda self, expr: self._annotate_by_args(expr, "true", "false"), +110 exp.Coalesce: lambda self, expr: self._annotate_by_args(expr, "this", "expressions"), +111 exp.IfNull: lambda self, expr: self._annotate_by_args(expr, "this", "expression"), +112 exp.ConcatWs: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +113 exp.GroupConcat: lambda self, expr: self._annotate_with_type( +114 expr, exp.DataType.Type.VARCHAR +115 ), +116 exp.ArrayConcat: lambda self, expr: self._annotate_with_type( +117 expr, exp.DataType.Type.VARCHAR +118 ), +119 exp.Initcap: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +120 exp.Least: lambda self, expr: self._annotate_by_args(expr, "expressions"), +121 exp.Length: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.BIGINT), +122 exp.Levenshtein: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), +123 exp.Ln: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +124 exp.Log: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +125 exp.Log2: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +126 exp.Log10: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +127 exp.Lower: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +128 exp.Month: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), +129 exp.Pow: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +130 exp.Quantile: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +131 exp.ApproxQuantile: lambda self, expr: self._annotate_with_type( +132 expr, exp.DataType.Type.DOUBLE 133 ), -134 exp.Round: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -135 exp.SafeDivide: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -136 exp.Substring: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -137 exp.StrPosition: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), -138 exp.StrToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), -139 exp.StrToTime: lambda self, expr: self._annotate_with_type( -140 expr, exp.DataType.Type.TIMESTAMP -141 ), -142 exp.Sqrt: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -143 exp.Stddev: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -144 exp.StddevPop: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -145 exp.StddevSamp: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -146 exp.TimeToStr: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -147 exp.TimeToTimeStr: lambda self, expr: self._annotate_with_type( -148 expr, exp.DataType.Type.VARCHAR -149 ), -150 exp.TimeStrToDate: lambda self, expr: self._annotate_with_type( -151 expr, exp.DataType.Type.DATE +134 exp.RegexpLike: lambda self, expr: self._annotate_with_type( +135 expr, exp.DataType.Type.BOOLEAN +136 ), +137 exp.Round: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +138 exp.SafeDivide: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +139 exp.Substring: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +140 exp.StrPosition: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), +141 exp.StrToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), +142 exp.StrToTime: lambda self, expr: self._annotate_with_type( +143 expr, exp.DataType.Type.TIMESTAMP +144 ), +145 exp.Sqrt: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +146 exp.Stddev: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +147 exp.StddevPop: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +148 exp.StddevSamp: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +149 exp.TimeToStr: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +150 exp.TimeToTimeStr: lambda self, expr: self._annotate_with_type( +151 expr, exp.DataType.Type.VARCHAR 152 ), -153 exp.TimeStrToTime: lambda self, expr: self._annotate_with_type( -154 expr, exp.DataType.Type.TIMESTAMP +153 exp.TimeStrToDate: lambda self, expr: self._annotate_with_type( +154 expr, exp.DataType.Type.DATE 155 ), -156 exp.Trim: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -157 exp.TsOrDsToDateStr: lambda self, expr: self._annotate_with_type( -158 expr, exp.DataType.Type.VARCHAR -159 ), -160 exp.TsOrDsToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), -161 exp.TsOrDiToDi: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), -162 exp.UnixToStr: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -163 exp.UnixToTime: lambda self, expr: self._annotate_with_type( -164 expr, exp.DataType.Type.TIMESTAMP -165 ), -166 exp.UnixToTimeStr: lambda self, expr: self._annotate_with_type( -167 expr, exp.DataType.Type.VARCHAR +156 exp.TimeStrToTime: lambda self, expr: self._annotate_with_type( +157 expr, exp.DataType.Type.TIMESTAMP +158 ), +159 exp.Trim: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +160 exp.TsOrDsToDateStr: lambda self, expr: self._annotate_with_type( +161 expr, exp.DataType.Type.VARCHAR +162 ), +163 exp.TsOrDsToDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), +164 exp.TsOrDiToDi: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), +165 exp.UnixToStr: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +166 exp.UnixToTime: lambda self, expr: self._annotate_with_type( +167 expr, exp.DataType.Type.TIMESTAMP 168 ), -169 exp.Upper: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), -170 exp.Variance: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), -171 exp.VariancePop: lambda self, expr: self._annotate_with_type( -172 expr, exp.DataType.Type.DOUBLE -173 ), -174 exp.Week: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), -175 exp.Year: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), -176 } -177 -178 # Reference: https://spark.apache.org/docs/3.2.0/sql-ref-ansi-compliance.html -179 COERCES_TO = { -180 # CHAR < NCHAR < VARCHAR < NVARCHAR < TEXT -181 exp.DataType.Type.TEXT: set(), -182 exp.DataType.Type.NVARCHAR: {exp.DataType.Type.TEXT}, -183 exp.DataType.Type.VARCHAR: {exp.DataType.Type.NVARCHAR, exp.DataType.Type.TEXT}, -184 exp.DataType.Type.NCHAR: { -185 exp.DataType.Type.VARCHAR, -186 exp.DataType.Type.NVARCHAR, -187 exp.DataType.Type.TEXT, -188 }, -189 exp.DataType.Type.CHAR: { -190 exp.DataType.Type.NCHAR, -191 exp.DataType.Type.VARCHAR, -192 exp.DataType.Type.NVARCHAR, -193 exp.DataType.Type.TEXT, -194 }, -195 # TINYINT < SMALLINT < INT < BIGINT < DECIMAL < FLOAT < DOUBLE -196 exp.DataType.Type.DOUBLE: set(), -197 exp.DataType.Type.FLOAT: {exp.DataType.Type.DOUBLE}, -198 exp.DataType.Type.DECIMAL: {exp.DataType.Type.FLOAT, exp.DataType.Type.DOUBLE}, -199 exp.DataType.Type.BIGINT: { -200 exp.DataType.Type.DECIMAL, -201 exp.DataType.Type.FLOAT, -202 exp.DataType.Type.DOUBLE, -203 }, -204 exp.DataType.Type.INT: { -205 exp.DataType.Type.BIGINT, -206 exp.DataType.Type.DECIMAL, -207 exp.DataType.Type.FLOAT, -208 exp.DataType.Type.DOUBLE, -209 }, -210 exp.DataType.Type.SMALLINT: { -211 exp.DataType.Type.INT, -212 exp.DataType.Type.BIGINT, -213 exp.DataType.Type.DECIMAL, -214 exp.DataType.Type.FLOAT, -215 exp.DataType.Type.DOUBLE, -216 }, -217 exp.DataType.Type.TINYINT: { -218 exp.DataType.Type.SMALLINT, -219 exp.DataType.Type.INT, -220 exp.DataType.Type.BIGINT, -221 exp.DataType.Type.DECIMAL, -222 exp.DataType.Type.FLOAT, -223 exp.DataType.Type.DOUBLE, -224 }, -225 # DATE < DATETIME < TIMESTAMP < TIMESTAMPTZ < TIMESTAMPLTZ -226 exp.DataType.Type.TIMESTAMPLTZ: set(), -227 exp.DataType.Type.TIMESTAMPTZ: {exp.DataType.Type.TIMESTAMPLTZ}, -228 exp.DataType.Type.TIMESTAMP: { -229 exp.DataType.Type.TIMESTAMPTZ, -230 exp.DataType.Type.TIMESTAMPLTZ, -231 }, -232 exp.DataType.Type.DATETIME: { -233 exp.DataType.Type.TIMESTAMP, -234 exp.DataType.Type.TIMESTAMPTZ, -235 exp.DataType.Type.TIMESTAMPLTZ, -236 }, -237 exp.DataType.Type.DATE: { -238 exp.DataType.Type.DATETIME, -239 exp.DataType.Type.TIMESTAMP, -240 exp.DataType.Type.TIMESTAMPTZ, -241 exp.DataType.Type.TIMESTAMPLTZ, -242 }, -243 } -244 -245 TRAVERSABLES = (exp.Select, exp.Union, exp.UDTF, exp.Subquery) -246 -247 def __init__(self, schema=None, annotators=None, coerces_to=None): -248 self.schema = schema -249 self.annotators = annotators or self.ANNOTATORS -250 self.coerces_to = coerces_to or self.COERCES_TO -251 -252 def annotate(self, expression): -253 if isinstance(expression, self.TRAVERSABLES): -254 for scope in traverse_scope(expression): -255 selects = {} -256 for name, source in scope.sources.items(): -257 if not isinstance(source, Scope): -258 continue -259 if isinstance(source.expression, exp.UDTF): -260 values = [] -261 -262 if isinstance(source.expression, exp.Lateral): -263 if isinstance(source.expression.this, exp.Explode): -264 values = [source.expression.this.this] -265 else: -266 values = source.expression.expressions[0].expressions -267 -268 if not values: -269 continue +169 exp.UnixToTimeStr: lambda self, expr: self._annotate_with_type( +170 expr, exp.DataType.Type.VARCHAR +171 ), +172 exp.Upper: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), +173 exp.Variance: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), +174 exp.VariancePop: lambda self, expr: self._annotate_with_type( +175 expr, exp.DataType.Type.DOUBLE +176 ), +177 exp.Week: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), +178 exp.Year: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.TINYINT), +179 } +180 +181 # Reference: https://spark.apache.org/docs/3.2.0/sql-ref-ansi-compliance.html +182 COERCES_TO = { +183 # CHAR < NCHAR < VARCHAR < NVARCHAR < TEXT +184 exp.DataType.Type.TEXT: set(), +185 exp.DataType.Type.NVARCHAR: {exp.DataType.Type.TEXT}, +186 exp.DataType.Type.VARCHAR: {exp.DataType.Type.NVARCHAR, exp.DataType.Type.TEXT}, +187 exp.DataType.Type.NCHAR: { +188 exp.DataType.Type.VARCHAR, +189 exp.DataType.Type.NVARCHAR, +190 exp.DataType.Type.TEXT, +191 }, +192 exp.DataType.Type.CHAR: { +193 exp.DataType.Type.NCHAR, +194 exp.DataType.Type.VARCHAR, +195 exp.DataType.Type.NVARCHAR, +196 exp.DataType.Type.TEXT, +197 }, +198 # TINYINT < SMALLINT < INT < BIGINT < DECIMAL < FLOAT < DOUBLE +199 exp.DataType.Type.DOUBLE: set(), +200 exp.DataType.Type.FLOAT: {exp.DataType.Type.DOUBLE}, +201 exp.DataType.Type.DECIMAL: {exp.DataType.Type.FLOAT, exp.DataType.Type.DOUBLE}, +202 exp.DataType.Type.BIGINT: { +203 exp.DataType.Type.DECIMAL, +204 exp.DataType.Type.FLOAT, +205 exp.DataType.Type.DOUBLE, +206 }, +207 exp.DataType.Type.INT: { +208 exp.DataType.Type.BIGINT, +209 exp.DataType.Type.DECIMAL, +210 exp.DataType.Type.FLOAT, +211 exp.DataType.Type.DOUBLE, +212 }, +213 exp.DataType.Type.SMALLINT: { +214 exp.DataType.Type.INT, +215 exp.DataType.Type.BIGINT, +216 exp.DataType.Type.DECIMAL, +217 exp.DataType.Type.FLOAT, +218 exp.DataType.Type.DOUBLE, +219 }, +220 exp.DataType.Type.TINYINT: { +221 exp.DataType.Type.SMALLINT, +222 exp.DataType.Type.INT, +223 exp.DataType.Type.BIGINT, +224 exp.DataType.Type.DECIMAL, +225 exp.DataType.Type.FLOAT, +226 exp.DataType.Type.DOUBLE, +227 }, +228 # DATE < DATETIME < TIMESTAMP < TIMESTAMPTZ < TIMESTAMPLTZ +229 exp.DataType.Type.TIMESTAMPLTZ: set(), +230 exp.DataType.Type.TIMESTAMPTZ: {exp.DataType.Type.TIMESTAMPLTZ}, +231 exp.DataType.Type.TIMESTAMP: { +232 exp.DataType.Type.TIMESTAMPTZ, +233 exp.DataType.Type.TIMESTAMPLTZ, +234 }, +235 exp.DataType.Type.DATETIME: { +236 exp.DataType.Type.TIMESTAMP, +237 exp.DataType.Type.TIMESTAMPTZ, +238 exp.DataType.Type.TIMESTAMPLTZ, +239 }, +240 exp.DataType.Type.DATE: { +241 exp.DataType.Type.DATETIME, +242 exp.DataType.Type.TIMESTAMP, +243 exp.DataType.Type.TIMESTAMPTZ, +244 exp.DataType.Type.TIMESTAMPLTZ, +245 }, +246 } +247 +248 TRAVERSABLES = (exp.Select, exp.Union, exp.UDTF, exp.Subquery) +249 +250 def __init__(self, schema=None, annotators=None, coerces_to=None): +251 self.schema = schema +252 self.annotators = annotators or self.ANNOTATORS +253 self.coerces_to = coerces_to or self.COERCES_TO +254 +255 def annotate(self, expression): +256 if isinstance(expression, self.TRAVERSABLES): +257 for scope in traverse_scope(expression): +258 selects = {} +259 for name, source in scope.sources.items(): +260 if not isinstance(source, Scope): +261 continue +262 if isinstance(source.expression, exp.UDTF): +263 values = [] +264 +265 if isinstance(source.expression, exp.Lateral): +266 if isinstance(source.expression.this, exp.Explode): +267 values = [source.expression.this.this] +268 else: +269 values = source.expression.expressions[0].expressions 270 -271 selects[name] = { -272 alias: column -273 for alias, column in zip( -274 source.expression.alias_column_names, -275 values, -276 ) -277 } -278 else: -279 selects[name] = { -280 select.alias_or_name: select for select in source.expression.selects -281 } -282 # First annotate the current scope's column references -283 for col in scope.columns: -284 if not col.table: -285 continue -286 -287 source = scope.sources.get(col.table) -288 if isinstance(source, exp.Table): -289 col.type = self.schema.get_column_type(source, col) -290 elif source and col.table in selects and col.name in selects[col.table]: -291 col.type = selects[col.table][col.name].type -292 # Then (possibly) annotate the remaining expressions in the scope -293 self._maybe_annotate(scope.expression) -294 return self._maybe_annotate(expression) # This takes care of non-traversable expressions -295 -296 def _maybe_annotate(self, expression): -297 if not isinstance(expression, exp.Expression): -298 return None -299 -300 if expression.type: -301 return expression # We've already inferred the expression's type +271 if not values: +272 continue +273 +274 selects[name] = { +275 alias: column +276 for alias, column in zip( +277 source.expression.alias_column_names, +278 values, +279 ) +280 } +281 else: +282 selects[name] = { +283 select.alias_or_name: select for select in source.expression.selects +284 } +285 # First annotate the current scope's column references +286 for col in scope.columns: +287 if not col.table: +288 continue +289 +290 source = scope.sources.get(col.table) +291 if isinstance(source, exp.Table): +292 col.type = self.schema.get_column_type(source, col) +293 elif source and col.table in selects and col.name in selects[col.table]: +294 col.type = selects[col.table][col.name].type +295 # Then (possibly) annotate the remaining expressions in the scope +296 self._maybe_annotate(scope.expression) +297 return self._maybe_annotate(expression) # This takes care of non-traversable expressions +298 +299 def _maybe_annotate(self, expression): +300 if not isinstance(expression, exp.Expression): +301 return None 302 -303 annotator = self.annotators.get(expression.__class__) -304 -305 return ( -306 annotator(self, expression) -307 if annotator -308 else self._annotate_with_type(expression, exp.DataType.Type.UNKNOWN) -309 ) -310 -311 def _annotate_args(self, expression): -312 for value in expression.args.values(): -313 for v in ensure_collection(value): -314 self._maybe_annotate(v) -315 -316 return expression -317 -318 def _maybe_coerce(self, type1, type2): -319 # We propagate the NULL / UNKNOWN types upwards if found -320 if isinstance(type1, exp.DataType): -321 type1 = type1.this -322 if isinstance(type2, exp.DataType): -323 type2 = type2.this -324 -325 if exp.DataType.Type.NULL in (type1, type2): -326 return exp.DataType.Type.NULL -327 if exp.DataType.Type.UNKNOWN in (type1, type2): -328 return exp.DataType.Type.UNKNOWN -329 -330 return type2 if type2 in self.coerces_to.get(type1, {}) else type1 -331 -332 def _annotate_binary(self, expression): -333 self._annotate_args(expression) +303 if expression.type: +304 return expression # We've already inferred the expression's type +305 +306 annotator = self.annotators.get(expression.__class__) +307 +308 return ( +309 annotator(self, expression) +310 if annotator +311 else self._annotate_with_type(expression, exp.DataType.Type.UNKNOWN) +312 ) +313 +314 def _annotate_args(self, expression): +315 for value in expression.args.values(): +316 for v in ensure_collection(value): +317 self._maybe_annotate(v) +318 +319 return expression +320 +321 def _maybe_coerce(self, type1, type2): +322 # We propagate the NULL / UNKNOWN types upwards if found +323 if isinstance(type1, exp.DataType): +324 type1 = type1.this +325 if isinstance(type2, exp.DataType): +326 type2 = type2.this +327 +328 if exp.DataType.Type.NULL in (type1, type2): +329 return exp.DataType.Type.NULL +330 if exp.DataType.Type.UNKNOWN in (type1, type2): +331 return exp.DataType.Type.UNKNOWN +332 +333 return type2 if type2 in self.coerces_to.get(type1, {}) else type1 334 -335 left_type = expression.left.type.this -336 right_type = expression.right.type.this +335 def _annotate_binary(self, expression): +336 self._annotate_args(expression) 337 -338 if isinstance(expression, (exp.And, exp.Or)): -339 if left_type == exp.DataType.Type.NULL and right_type == exp.DataType.Type.NULL: -340 expression.type = exp.DataType.Type.NULL -341 elif exp.DataType.Type.NULL in (left_type, right_type): -342 expression.type = exp.DataType.build( -343 "NULLABLE", expressions=exp.DataType.build("BOOLEAN") -344 ) -345 else: -346 expression.type = exp.DataType.Type.BOOLEAN -347 elif isinstance(expression, (exp.Condition, exp.Predicate)): -348 expression.type = exp.DataType.Type.BOOLEAN -349 else: -350 expression.type = self._maybe_coerce(left_type, right_type) -351 -352 return expression -353 -354 def _annotate_unary(self, expression): -355 self._annotate_args(expression) +338 left_type = expression.left.type.this +339 right_type = expression.right.type.this +340 +341 if isinstance(expression, (exp.And, exp.Or)): +342 if left_type == exp.DataType.Type.NULL and right_type == exp.DataType.Type.NULL: +343 expression.type = exp.DataType.Type.NULL +344 elif exp.DataType.Type.NULL in (left_type, right_type): +345 expression.type = exp.DataType.build( +346 "NULLABLE", expressions=exp.DataType.build("BOOLEAN") +347 ) +348 else: +349 expression.type = exp.DataType.Type.BOOLEAN +350 elif isinstance(expression, (exp.Condition, exp.Predicate)): +351 expression.type = exp.DataType.Type.BOOLEAN +352 else: +353 expression.type = self._maybe_coerce(left_type, right_type) +354 +355 return expression 356 -357 if isinstance(expression, exp.Condition) and not isinstance(expression, exp.Paren): -358 expression.type = exp.DataType.Type.BOOLEAN -359 else: -360 expression.type = expression.this.type -361 -362 return expression -363 -364 def _annotate_literal(self, expression): -365 if expression.is_string: -366 expression.type = exp.DataType.Type.VARCHAR -367 elif expression.is_int: -368 expression.type = exp.DataType.Type.INT -369 else: -370 expression.type = exp.DataType.Type.DOUBLE -371 -372 return expression -373 -374 def _annotate_with_type(self, expression, target_type): -375 expression.type = target_type -376 return self._annotate_args(expression) -377 -378 def _annotate_by_args(self, expression, *args, promote=False): -379 self._annotate_args(expression) -380 expressions = [] -381 for arg in args: -382 arg_expr = expression.args.get(arg) -383 expressions.extend(expr for expr in ensure_list(arg_expr) if expr) -384 -385 last_datatype = None -386 for expr in expressions: -387 last_datatype = self._maybe_coerce(last_datatype or expr.type, expr.type) -388 -389 expression.type = last_datatype or exp.DataType.Type.UNKNOWN -390 -391 if promote: -392 if expression.type.this in exp.DataType.INTEGER_TYPES: -393 expression.type = exp.DataType.Type.BIGINT -394 elif expression.type.this in exp.DataType.FLOAT_TYPES: -395 expression.type = exp.DataType.Type.DOUBLE -396 -397 return expression +357 def _annotate_unary(self, expression): +358 self._annotate_args(expression) +359 +360 if isinstance(expression, exp.Condition) and not isinstance(expression, exp.Paren): +361 expression.type = exp.DataType.Type.BOOLEAN +362 else: +363 expression.type = expression.this.type +364 +365 return expression +366 +367 def _annotate_literal(self, expression): +368 if expression.is_string: +369 expression.type = exp.DataType.Type.VARCHAR +370 elif expression.is_int: +371 expression.type = exp.DataType.Type.INT +372 else: +373 expression.type = exp.DataType.Type.DOUBLE +374 +375 return expression +376 +377 def _annotate_with_type(self, expression, target_type): +378 expression.type = target_type +379 return self._annotate_args(expression) +380 +381 def _annotate_by_args(self, expression, *args, promote=False): +382 self._annotate_args(expression) +383 expressions = [] +384 for arg in args: +385 arg_expr = expression.args.get(arg) +386 expressions.extend(expr for expr in ensure_list(arg_expr) if expr) +387 +388 last_datatype = None +389 for expr in expressions: +390 last_datatype = self._maybe_coerce(last_datatype or expr.type, expr.type) +391 +392 expression.type = last_datatype or exp.DataType.Type.UNKNOWN +393 +394 if promote: +395 if expression.type.this in exp.DataType.INTEGER_TYPES: +396 expression.type = exp.DataType.Type.BIGINT +397 elif expression.type.this in exp.DataType.FLOAT_TYPES: +398 expression.type = exp.DataType.Type.DOUBLE +399 +400 return expression
    @@ -931,10 +937,10 @@ Assumes that we've already executed the optimizer's qualify_columns step.

    -
    247    def __init__(self, schema=None, annotators=None, coerces_to=None):
    -248        self.schema = schema
    -249        self.annotators = annotators or self.ANNOTATORS
    -250        self.coerces_to = coerces_to or self.COERCES_TO
    +            
    250    def __init__(self, schema=None, annotators=None, coerces_to=None):
    +251        self.schema = schema
    +252        self.annotators = annotators or self.ANNOTATORS
    +253        self.coerces_to = coerces_to or self.COERCES_TO
     
    @@ -952,49 +958,49 @@ Assumes that we've already executed the optimizer's qualify_columns step.

    -
    252    def annotate(self, expression):
    -253        if isinstance(expression, self.TRAVERSABLES):
    -254            for scope in traverse_scope(expression):
    -255                selects = {}
    -256                for name, source in scope.sources.items():
    -257                    if not isinstance(source, Scope):
    -258                        continue
    -259                    if isinstance(source.expression, exp.UDTF):
    -260                        values = []
    -261
    -262                        if isinstance(source.expression, exp.Lateral):
    -263                            if isinstance(source.expression.this, exp.Explode):
    -264                                values = [source.expression.this.this]
    -265                        else:
    -266                            values = source.expression.expressions[0].expressions
    -267
    -268                        if not values:
    -269                            continue
    +            
    255    def annotate(self, expression):
    +256        if isinstance(expression, self.TRAVERSABLES):
    +257            for scope in traverse_scope(expression):
    +258                selects = {}
    +259                for name, source in scope.sources.items():
    +260                    if not isinstance(source, Scope):
    +261                        continue
    +262                    if isinstance(source.expression, exp.UDTF):
    +263                        values = []
    +264
    +265                        if isinstance(source.expression, exp.Lateral):
    +266                            if isinstance(source.expression.this, exp.Explode):
    +267                                values = [source.expression.this.this]
    +268                        else:
    +269                            values = source.expression.expressions[0].expressions
     270
    -271                        selects[name] = {
    -272                            alias: column
    -273                            for alias, column in zip(
    -274                                source.expression.alias_column_names,
    -275                                values,
    -276                            )
    -277                        }
    -278                    else:
    -279                        selects[name] = {
    -280                            select.alias_or_name: select for select in source.expression.selects
    -281                        }
    -282                # First annotate the current scope's column references
    -283                for col in scope.columns:
    -284                    if not col.table:
    -285                        continue
    -286
    -287                    source = scope.sources.get(col.table)
    -288                    if isinstance(source, exp.Table):
    -289                        col.type = self.schema.get_column_type(source, col)
    -290                    elif source and col.table in selects and col.name in selects[col.table]:
    -291                        col.type = selects[col.table][col.name].type
    -292                # Then (possibly) annotate the remaining expressions in the scope
    -293                self._maybe_annotate(scope.expression)
    -294        return self._maybe_annotate(expression)  # This takes care of non-traversable expressions
    +271                        if not values:
    +272                            continue
    +273
    +274                        selects[name] = {
    +275                            alias: column
    +276                            for alias, column in zip(
    +277                                source.expression.alias_column_names,
    +278                                values,
    +279                            )
    +280                        }
    +281                    else:
    +282                        selects[name] = {
    +283                            select.alias_or_name: select for select in source.expression.selects
    +284                        }
    +285                # First annotate the current scope's column references
    +286                for col in scope.columns:
    +287                    if not col.table:
    +288                        continue
    +289
    +290                    source = scope.sources.get(col.table)
    +291                    if isinstance(source, exp.Table):
    +292                        col.type = self.schema.get_column_type(source, col)
    +293                    elif source and col.table in selects and col.name in selects[col.table]:
    +294                        col.type = selects[col.table][col.name].type
    +295                # Then (possibly) annotate the remaining expressions in the scope
    +296                self._maybe_annotate(scope.expression)
    +297        return self._maybe_annotate(expression)  # This takes care of non-traversable expressions
     
    diff --git a/docs/sqlglot/optimizer/optimizer.html b/docs/sqlglot/optimizer/optimizer.html index 7bc7966..2859e5a 100644 --- a/docs/sqlglot/optimizer/optimizer.html +++ b/docs/sqlglot/optimizer/optimizer.html @@ -156,7 +156,7 @@
    def - optimize( expression: str | sqlglot.expressions.Expression, schema: Union[dict, sqlglot.schema.Schema, NoneType] = None, db: Optional[str] = None, catalog: Optional[str] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, rules: Sequence[Callable] = (<function lower_identities at 0x7fc261089990>, <function qualify_tables at 0x7fc261078040>, <function isolate_table_selects at 0x7fc261089900>, <function qualify_columns at 0x7fc26108aef0>, <function expand_laterals at 0x7fc2610896c0>, <function pushdown_projections at 0x7fc26108b9a0>, <function validate_qualify_columns at 0x7fc26108af80>, <function normalize at 0x7fc26109b640>, <function unnest_subqueries at 0x7fc261078160>, <function expand_multi_table_selects at 0x7fc261089870>, <function pushdown_predicates at 0x7fc26108aa70>, <function optimize_joins at 0x7fc26108a7a0>, <function eliminate_subqueries at 0x7fc2610892d0>, <function merge_subqueries at 0x7fc261089c60>, <function eliminate_joins at 0x7fc26109b520>, <function eliminate_ctes at 0x7fc26109b400>, <function annotate_types at 0x7fc260ff4310>, <function canonicalize at 0x7fc26109b010>), **kwargs): + optimize( expression: str | sqlglot.expressions.Expression, schema: Union[dict, sqlglot.schema.Schema, NoneType] = None, db: Optional[str] = None, catalog: Optional[str] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, rules: Sequence[Callable] = (<function lower_identities at 0x7f29a076a170>, <function qualify_tables at 0x7f29a0794820>, <function isolate_table_selects at 0x7f29a076a0e0>, <function qualify_columns at 0x7f29a076b6d0>, <function expand_laterals at 0x7f29a0769ea0>, <function pushdown_projections at 0x7f29a07941f0>, <function validate_qualify_columns at 0x7f29a076b760>, <function normalize at 0x7f29a0767e20>, <function unnest_subqueries at 0x7f29a0794940>, <function expand_multi_table_selects at 0x7f29a076a050>, <function pushdown_predicates at 0x7f29a076b250>, <function optimize_joins at 0x7f29a076af80>, <function eliminate_subqueries at 0x7f29a0769ab0>, <function merge_subqueries at 0x7f29a076a440>, <function eliminate_joins at 0x7f29a0767c70>, <function eliminate_ctes at 0x7f29a0767b50>, <function annotate_types at 0x7f29a0720940>, <function canonicalize at 0x7f29a0767760>), **kwargs): diff --git a/docs/sqlglot/parser.html b/docs/sqlglot/parser.html index b2685da..0d6539f 100644 --- a/docs/sqlglot/parser.html +++ b/docs/sqlglot/parser.html @@ -124,3891 +124,3951 @@ 36 klass = super().__new__(cls, clsname, bases, attrs) 37 klass._show_trie = new_trie(key.split(" ") for key in klass.SHOW_PARSERS) 38 klass._set_trie = new_trie(key.split(" ") for key in klass.SET_PARSERS) - 39 return klass - 40 - 41 - 42class Parser(metaclass=_Parser): - 43 """ - 44 Parser consumes a list of tokens produced by the `sqlglot.tokens.Tokenizer` and produces - 45 a parsed syntax tree. - 46 - 47 Args: - 48 error_level: the desired error level. - 49 Default: ErrorLevel.RAISE - 50 error_message_context: determines the amount of context to capture from a - 51 query string when displaying the error message (in number of characters). - 52 Default: 50. - 53 index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list. - 54 Default: 0 - 55 alias_post_tablesample: If the table alias comes after tablesample. - 56 Default: False - 57 max_errors: Maximum number of error messages to include in a raised ParseError. - 58 This is only relevant if error_level is ErrorLevel.RAISE. - 59 Default: 3 - 60 null_ordering: Indicates the default null ordering method to use if not explicitly set. - 61 Options are "nulls_are_small", "nulls_are_large", "nulls_are_last". - 62 Default: "nulls_are_small" - 63 """ - 64 - 65 FUNCTIONS: t.Dict[str, t.Callable] = { - 66 **{name: f.from_arg_list for f in exp.ALL_FUNCTIONS for name in f.sql_names()}, - 67 "DATE_TO_DATE_STR": lambda args: exp.Cast( - 68 this=seq_get(args, 0), - 69 to=exp.DataType(this=exp.DataType.Type.TEXT), - 70 ), - 71 "TIME_TO_TIME_STR": lambda args: exp.Cast( + 39 + 40 if not klass.INTEGER_DIVISION: + 41 klass.FACTOR = {**klass.FACTOR, TokenType.SLASH: exp.FloatDiv} + 42 + 43 return klass + 44 + 45 + 46class Parser(metaclass=_Parser): + 47 """ + 48 Parser consumes a list of tokens produced by the `sqlglot.tokens.Tokenizer` and produces + 49 a parsed syntax tree. + 50 + 51 Args: + 52 error_level: the desired error level. + 53 Default: ErrorLevel.RAISE + 54 error_message_context: determines the amount of context to capture from a + 55 query string when displaying the error message (in number of characters). + 56 Default: 50. + 57 index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list. + 58 Default: 0 + 59 alias_post_tablesample: If the table alias comes after tablesample. + 60 Default: False + 61 max_errors: Maximum number of error messages to include in a raised ParseError. + 62 This is only relevant if error_level is ErrorLevel.RAISE. + 63 Default: 3 + 64 null_ordering: Indicates the default null ordering method to use if not explicitly set. + 65 Options are "nulls_are_small", "nulls_are_large", "nulls_are_last". + 66 Default: "nulls_are_small" + 67 """ + 68 + 69 FUNCTIONS: t.Dict[str, t.Callable] = { + 70 **{name: f.from_arg_list for f in exp.ALL_FUNCTIONS for name in f.sql_names()}, + 71 "DATE_TO_DATE_STR": lambda args: exp.Cast( 72 this=seq_get(args, 0), 73 to=exp.DataType(this=exp.DataType.Type.TEXT), 74 ), - 75 "TS_OR_DS_TO_DATE_STR": lambda args: exp.Substring( - 76 this=exp.Cast( - 77 this=seq_get(args, 0), - 78 to=exp.DataType(this=exp.DataType.Type.TEXT), - 79 ), - 80 start=exp.Literal.number(1), - 81 length=exp.Literal.number(10), - 82 ), - 83 "VAR_MAP": parse_var_map, - 84 "IFNULL": exp.Coalesce.from_arg_list, - 85 } - 86 - 87 NO_PAREN_FUNCTIONS = { - 88 TokenType.CURRENT_DATE: exp.CurrentDate, - 89 TokenType.CURRENT_DATETIME: exp.CurrentDate, - 90 TokenType.CURRENT_TIMESTAMP: exp.CurrentTimestamp, - 91 } - 92 - 93 NESTED_TYPE_TOKENS = { - 94 TokenType.ARRAY, - 95 TokenType.MAP, - 96 TokenType.STRUCT, - 97 TokenType.NULLABLE, - 98 } - 99 - 100 TYPE_TOKENS = { - 101 TokenType.BOOLEAN, - 102 TokenType.TINYINT, - 103 TokenType.SMALLINT, - 104 TokenType.INT, - 105 TokenType.BIGINT, - 106 TokenType.FLOAT, - 107 TokenType.DOUBLE, - 108 TokenType.CHAR, - 109 TokenType.NCHAR, - 110 TokenType.VARCHAR, - 111 TokenType.NVARCHAR, - 112 TokenType.TEXT, - 113 TokenType.MEDIUMTEXT, - 114 TokenType.LONGTEXT, - 115 TokenType.MEDIUMBLOB, - 116 TokenType.LONGBLOB, - 117 TokenType.BINARY, - 118 TokenType.VARBINARY, - 119 TokenType.JSON, - 120 TokenType.JSONB, - 121 TokenType.INTERVAL, - 122 TokenType.TIME, - 123 TokenType.TIMESTAMP, - 124 TokenType.TIMESTAMPTZ, - 125 TokenType.TIMESTAMPLTZ, - 126 TokenType.DATETIME, - 127 TokenType.DATE, - 128 TokenType.DECIMAL, - 129 TokenType.UUID, - 130 TokenType.GEOGRAPHY, - 131 TokenType.GEOMETRY, - 132 TokenType.HLLSKETCH, - 133 TokenType.HSTORE, - 134 TokenType.PSEUDO_TYPE, - 135 TokenType.SUPER, - 136 TokenType.SERIAL, - 137 TokenType.SMALLSERIAL, - 138 TokenType.BIGSERIAL, - 139 TokenType.XML, - 140 TokenType.UNIQUEIDENTIFIER, - 141 TokenType.MONEY, - 142 TokenType.SMALLMONEY, - 143 TokenType.ROWVERSION, - 144 TokenType.IMAGE, - 145 TokenType.VARIANT, - 146 TokenType.OBJECT, - 147 TokenType.INET, - 148 *NESTED_TYPE_TOKENS, - 149 } - 150 - 151 SUBQUERY_PREDICATES = { - 152 TokenType.ANY: exp.Any, - 153 TokenType.ALL: exp.All, - 154 TokenType.EXISTS: exp.Exists, - 155 TokenType.SOME: exp.Any, - 156 } - 157 - 158 RESERVED_KEYWORDS = {*Tokenizer.SINGLE_TOKENS.values(), TokenType.SELECT} - 159 - 160 DB_CREATABLES = { - 161 TokenType.DATABASE, - 162 TokenType.SCHEMA, - 163 TokenType.TABLE, - 164 TokenType.VIEW, - 165 } - 166 - 167 CREATABLES = { - 168 TokenType.COLUMN, - 169 TokenType.FUNCTION, - 170 TokenType.INDEX, - 171 TokenType.PROCEDURE, - 172 *DB_CREATABLES, - 173 } - 174 - 175 ID_VAR_TOKENS = { - 176 TokenType.VAR, - 177 TokenType.ANTI, - 178 TokenType.APPLY, - 179 TokenType.AUTO_INCREMENT, - 180 TokenType.BEGIN, - 181 TokenType.BOTH, - 182 TokenType.BUCKET, - 183 TokenType.CACHE, - 184 TokenType.CASCADE, - 185 TokenType.COLLATE, - 186 TokenType.COMMAND, - 187 TokenType.COMMENT, - 188 TokenType.COMMIT, - 189 TokenType.COMPOUND, - 190 TokenType.CONSTRAINT, - 191 TokenType.CURRENT_TIME, - 192 TokenType.DEFAULT, - 193 TokenType.DELETE, - 194 TokenType.DESCRIBE, - 195 TokenType.DIV, - 196 TokenType.END, - 197 TokenType.EXECUTE, - 198 TokenType.ESCAPE, - 199 TokenType.FALSE, - 200 TokenType.FIRST, - 201 TokenType.FILTER, - 202 TokenType.FOLLOWING, - 203 TokenType.FORMAT, - 204 TokenType.IF, - 205 TokenType.ISNULL, - 206 TokenType.INTERVAL, - 207 TokenType.LAZY, - 208 TokenType.LEADING, - 209 TokenType.LEFT, - 210 TokenType.LOCAL, - 211 TokenType.MATERIALIZED, - 212 TokenType.MERGE, - 213 TokenType.NATURAL, - 214 TokenType.NEXT, - 215 TokenType.OFFSET, - 216 TokenType.ONLY, - 217 TokenType.OPTIONS, - 218 TokenType.ORDINALITY, - 219 TokenType.PERCENT, - 220 TokenType.PIVOT, - 221 TokenType.PRECEDING, - 222 TokenType.RANGE, - 223 TokenType.REFERENCES, - 224 TokenType.RIGHT, - 225 TokenType.ROW, - 226 TokenType.ROWS, - 227 TokenType.SEED, - 228 TokenType.SEMI, - 229 TokenType.SET, - 230 TokenType.SHOW, - 231 TokenType.SORTKEY, - 232 TokenType.TEMPORARY, - 233 TokenType.TOP, - 234 TokenType.TRAILING, - 235 TokenType.TRUE, - 236 TokenType.UNBOUNDED, - 237 TokenType.UNIQUE, - 238 TokenType.UNLOGGED, - 239 TokenType.UNPIVOT, - 240 TokenType.VOLATILE, - 241 TokenType.WINDOW, - 242 *CREATABLES, - 243 *SUBQUERY_PREDICATES, - 244 *TYPE_TOKENS, - 245 *NO_PAREN_FUNCTIONS, - 246 } - 247 - 248 TABLE_ALIAS_TOKENS = ID_VAR_TOKENS - { - 249 TokenType.APPLY, - 250 TokenType.LEFT, - 251 TokenType.NATURAL, - 252 TokenType.OFFSET, - 253 TokenType.RIGHT, - 254 TokenType.WINDOW, - 255 } - 256 - 257 UPDATE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.SET} - 258 - 259 TRIM_TYPES = {TokenType.LEADING, TokenType.TRAILING, TokenType.BOTH} + 75 "TIME_TO_TIME_STR": lambda args: exp.Cast( + 76 this=seq_get(args, 0), + 77 to=exp.DataType(this=exp.DataType.Type.TEXT), + 78 ), + 79 "TS_OR_DS_TO_DATE_STR": lambda args: exp.Substring( + 80 this=exp.Cast( + 81 this=seq_get(args, 0), + 82 to=exp.DataType(this=exp.DataType.Type.TEXT), + 83 ), + 84 start=exp.Literal.number(1), + 85 length=exp.Literal.number(10), + 86 ), + 87 "VAR_MAP": parse_var_map, + 88 "IFNULL": exp.Coalesce.from_arg_list, + 89 } + 90 + 91 NO_PAREN_FUNCTIONS = { + 92 TokenType.CURRENT_DATE: exp.CurrentDate, + 93 TokenType.CURRENT_DATETIME: exp.CurrentDate, + 94 TokenType.CURRENT_TIMESTAMP: exp.CurrentTimestamp, + 95 } + 96 + 97 NESTED_TYPE_TOKENS = { + 98 TokenType.ARRAY, + 99 TokenType.MAP, + 100 TokenType.STRUCT, + 101 TokenType.NULLABLE, + 102 } + 103 + 104 TYPE_TOKENS = { + 105 TokenType.BOOLEAN, + 106 TokenType.TINYINT, + 107 TokenType.SMALLINT, + 108 TokenType.INT, + 109 TokenType.BIGINT, + 110 TokenType.FLOAT, + 111 TokenType.DOUBLE, + 112 TokenType.CHAR, + 113 TokenType.NCHAR, + 114 TokenType.VARCHAR, + 115 TokenType.NVARCHAR, + 116 TokenType.TEXT, + 117 TokenType.MEDIUMTEXT, + 118 TokenType.LONGTEXT, + 119 TokenType.MEDIUMBLOB, + 120 TokenType.LONGBLOB, + 121 TokenType.BINARY, + 122 TokenType.VARBINARY, + 123 TokenType.JSON, + 124 TokenType.JSONB, + 125 TokenType.INTERVAL, + 126 TokenType.TIME, + 127 TokenType.TIMESTAMP, + 128 TokenType.TIMESTAMPTZ, + 129 TokenType.TIMESTAMPLTZ, + 130 TokenType.DATETIME, + 131 TokenType.DATE, + 132 TokenType.DECIMAL, + 133 TokenType.UUID, + 134 TokenType.GEOGRAPHY, + 135 TokenType.GEOMETRY, + 136 TokenType.HLLSKETCH, + 137 TokenType.HSTORE, + 138 TokenType.PSEUDO_TYPE, + 139 TokenType.SUPER, + 140 TokenType.SERIAL, + 141 TokenType.SMALLSERIAL, + 142 TokenType.BIGSERIAL, + 143 TokenType.XML, + 144 TokenType.UNIQUEIDENTIFIER, + 145 TokenType.MONEY, + 146 TokenType.SMALLMONEY, + 147 TokenType.ROWVERSION, + 148 TokenType.IMAGE, + 149 TokenType.VARIANT, + 150 TokenType.OBJECT, + 151 TokenType.INET, + 152 *NESTED_TYPE_TOKENS, + 153 } + 154 + 155 SUBQUERY_PREDICATES = { + 156 TokenType.ANY: exp.Any, + 157 TokenType.ALL: exp.All, + 158 TokenType.EXISTS: exp.Exists, + 159 TokenType.SOME: exp.Any, + 160 } + 161 + 162 RESERVED_KEYWORDS = {*Tokenizer.SINGLE_TOKENS.values(), TokenType.SELECT} + 163 + 164 DB_CREATABLES = { + 165 TokenType.DATABASE, + 166 TokenType.SCHEMA, + 167 TokenType.TABLE, + 168 TokenType.VIEW, + 169 } + 170 + 171 CREATABLES = { + 172 TokenType.COLUMN, + 173 TokenType.FUNCTION, + 174 TokenType.INDEX, + 175 TokenType.PROCEDURE, + 176 *DB_CREATABLES, + 177 } + 178 + 179 ID_VAR_TOKENS = { + 180 TokenType.VAR, + 181 TokenType.ANTI, + 182 TokenType.APPLY, + 183 TokenType.AUTO_INCREMENT, + 184 TokenType.BEGIN, + 185 TokenType.BOTH, + 186 TokenType.BUCKET, + 187 TokenType.CACHE, + 188 TokenType.CASCADE, + 189 TokenType.COLLATE, + 190 TokenType.COMMAND, + 191 TokenType.COMMENT, + 192 TokenType.COMMIT, + 193 TokenType.COMPOUND, + 194 TokenType.CONSTRAINT, + 195 TokenType.CURRENT_TIME, + 196 TokenType.DEFAULT, + 197 TokenType.DELETE, + 198 TokenType.DESCRIBE, + 199 TokenType.DIV, + 200 TokenType.END, + 201 TokenType.EXECUTE, + 202 TokenType.ESCAPE, + 203 TokenType.FALSE, + 204 TokenType.FIRST, + 205 TokenType.FILTER, + 206 TokenType.FOLLOWING, + 207 TokenType.FORMAT, + 208 TokenType.IF, + 209 TokenType.ISNULL, + 210 TokenType.INTERVAL, + 211 TokenType.LAZY, + 212 TokenType.LEADING, + 213 TokenType.LEFT, + 214 TokenType.LOCAL, + 215 TokenType.MATERIALIZED, + 216 TokenType.MERGE, + 217 TokenType.NATURAL, + 218 TokenType.NEXT, + 219 TokenType.OFFSET, + 220 TokenType.ONLY, + 221 TokenType.OPTIONS, + 222 TokenType.ORDINALITY, + 223 TokenType.PERCENT, + 224 TokenType.PIVOT, + 225 TokenType.PRECEDING, + 226 TokenType.RANGE, + 227 TokenType.REFERENCES, + 228 TokenType.RIGHT, + 229 TokenType.ROW, + 230 TokenType.ROWS, + 231 TokenType.SEED, + 232 TokenType.SEMI, + 233 TokenType.SET, + 234 TokenType.SHOW, + 235 TokenType.SORTKEY, + 236 TokenType.TEMPORARY, + 237 TokenType.TOP, + 238 TokenType.TRAILING, + 239 TokenType.TRUE, + 240 TokenType.UNBOUNDED, + 241 TokenType.UNIQUE, + 242 TokenType.UNLOGGED, + 243 TokenType.UNPIVOT, + 244 TokenType.VOLATILE, + 245 TokenType.WINDOW, + 246 *CREATABLES, + 247 *SUBQUERY_PREDICATES, + 248 *TYPE_TOKENS, + 249 *NO_PAREN_FUNCTIONS, + 250 } + 251 + 252 TABLE_ALIAS_TOKENS = ID_VAR_TOKENS - { + 253 TokenType.APPLY, + 254 TokenType.LEFT, + 255 TokenType.NATURAL, + 256 TokenType.OFFSET, + 257 TokenType.RIGHT, + 258 TokenType.WINDOW, + 259 } 260 - 261 FUNC_TOKENS = { - 262 TokenType.COMMAND, - 263 TokenType.CURRENT_DATE, - 264 TokenType.CURRENT_DATETIME, - 265 TokenType.CURRENT_TIMESTAMP, - 266 TokenType.CURRENT_TIME, - 267 TokenType.FILTER, - 268 TokenType.FIRST, - 269 TokenType.FORMAT, - 270 TokenType.IDENTIFIER, - 271 TokenType.INDEX, - 272 TokenType.ISNULL, - 273 TokenType.ILIKE, - 274 TokenType.LIKE, - 275 TokenType.MERGE, - 276 TokenType.OFFSET, - 277 TokenType.PRIMARY_KEY, - 278 TokenType.REPLACE, - 279 TokenType.ROW, - 280 TokenType.UNNEST, - 281 TokenType.VAR, - 282 TokenType.LEFT, - 283 TokenType.RIGHT, - 284 TokenType.DATE, - 285 TokenType.DATETIME, - 286 TokenType.TABLE, - 287 TokenType.TIMESTAMP, - 288 TokenType.TIMESTAMPTZ, - 289 TokenType.WINDOW, - 290 *TYPE_TOKENS, - 291 *SUBQUERY_PREDICATES, - 292 } - 293 - 294 CONJUNCTION = { - 295 TokenType.AND: exp.And, - 296 TokenType.OR: exp.Or, - 297 } - 298 - 299 EQUALITY = { - 300 TokenType.EQ: exp.EQ, - 301 TokenType.NEQ: exp.NEQ, - 302 TokenType.NULLSAFE_EQ: exp.NullSafeEQ, - 303 } - 304 - 305 COMPARISON = { - 306 TokenType.GT: exp.GT, - 307 TokenType.GTE: exp.GTE, - 308 TokenType.LT: exp.LT, - 309 TokenType.LTE: exp.LTE, - 310 } - 311 - 312 BITWISE = { - 313 TokenType.AMP: exp.BitwiseAnd, - 314 TokenType.CARET: exp.BitwiseXor, - 315 TokenType.PIPE: exp.BitwiseOr, - 316 TokenType.DPIPE: exp.DPipe, - 317 } - 318 - 319 TERM = { - 320 TokenType.DASH: exp.Sub, - 321 TokenType.PLUS: exp.Add, - 322 TokenType.MOD: exp.Mod, - 323 TokenType.COLLATE: exp.Collate, - 324 } - 325 - 326 FACTOR = { - 327 TokenType.DIV: exp.IntDiv, - 328 TokenType.LR_ARROW: exp.Distance, - 329 TokenType.SLASH: exp.Div, - 330 TokenType.STAR: exp.Mul, - 331 } - 332 - 333 TIMESTAMPS = { - 334 TokenType.TIME, - 335 TokenType.TIMESTAMP, - 336 TokenType.TIMESTAMPTZ, - 337 TokenType.TIMESTAMPLTZ, - 338 } - 339 - 340 SET_OPERATIONS = { - 341 TokenType.UNION, - 342 TokenType.INTERSECT, - 343 TokenType.EXCEPT, - 344 } - 345 - 346 JOIN_SIDES = { - 347 TokenType.LEFT, - 348 TokenType.RIGHT, - 349 TokenType.FULL, - 350 } - 351 - 352 JOIN_KINDS = { - 353 TokenType.INNER, - 354 TokenType.OUTER, - 355 TokenType.CROSS, - 356 TokenType.SEMI, - 357 TokenType.ANTI, - 358 } - 359 - 360 LAMBDAS = { - 361 TokenType.ARROW: lambda self, expressions: self.expression( - 362 exp.Lambda, - 363 this=self._parse_conjunction().transform( - 364 self._replace_lambda, {node.name for node in expressions} - 365 ), - 366 expressions=expressions, - 367 ), - 368 TokenType.FARROW: lambda self, expressions: self.expression( - 369 exp.Kwarg, - 370 this=exp.Var(this=expressions[0].name), - 371 expression=self._parse_conjunction(), - 372 ), - 373 } - 374 - 375 COLUMN_OPERATORS = { - 376 TokenType.DOT: None, - 377 TokenType.DCOLON: lambda self, this, to: self.expression( - 378 exp.Cast, - 379 this=this, - 380 to=to, - 381 ), - 382 TokenType.ARROW: lambda self, this, path: self.expression( - 383 exp.JSONExtract, - 384 this=this, - 385 expression=path, - 386 ), - 387 TokenType.DARROW: lambda self, this, path: self.expression( - 388 exp.JSONExtractScalar, - 389 this=this, - 390 expression=path, - 391 ), - 392 TokenType.HASH_ARROW: lambda self, this, path: self.expression( - 393 exp.JSONBExtract, - 394 this=this, - 395 expression=path, - 396 ), - 397 TokenType.DHASH_ARROW: lambda self, this, path: self.expression( - 398 exp.JSONBExtractScalar, - 399 this=this, - 400 expression=path, - 401 ), - 402 TokenType.PLACEHOLDER: lambda self, this, key: self.expression( - 403 exp.JSONBContains, - 404 this=this, - 405 expression=key, - 406 ), - 407 } - 408 - 409 EXPRESSION_PARSERS = { - 410 exp.Column: lambda self: self._parse_column(), - 411 exp.DataType: lambda self: self._parse_types(), - 412 exp.From: lambda self: self._parse_from(), - 413 exp.Group: lambda self: self._parse_group(), - 414 exp.Identifier: lambda self: self._parse_id_var(), - 415 exp.Lateral: lambda self: self._parse_lateral(), - 416 exp.Join: lambda self: self._parse_join(), - 417 exp.Order: lambda self: self._parse_order(), - 418 exp.Cluster: lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), - 419 exp.Sort: lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), - 420 exp.Lambda: lambda self: self._parse_lambda(), - 421 exp.Limit: lambda self: self._parse_limit(), - 422 exp.Offset: lambda self: self._parse_offset(), - 423 exp.TableAlias: lambda self: self._parse_table_alias(), - 424 exp.Table: lambda self: self._parse_table(), - 425 exp.Condition: lambda self: self._parse_conjunction(), - 426 exp.Expression: lambda self: self._parse_statement(), - 427 exp.Properties: lambda self: self._parse_properties(), - 428 exp.Where: lambda self: self._parse_where(), - 429 exp.Ordered: lambda self: self._parse_ordered(), - 430 exp.Having: lambda self: self._parse_having(), - 431 exp.With: lambda self: self._parse_with(), - 432 exp.Window: lambda self: self._parse_named_window(), - 433 "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(), - 434 } - 435 - 436 STATEMENT_PARSERS = { - 437 TokenType.ALTER: lambda self: self._parse_alter(), - 438 TokenType.BEGIN: lambda self: self._parse_transaction(), - 439 TokenType.CACHE: lambda self: self._parse_cache(), - 440 TokenType.COMMIT: lambda self: self._parse_commit_or_rollback(), - 441 TokenType.COMMENT: lambda self: self._parse_comment(), - 442 TokenType.CREATE: lambda self: self._parse_create(), - 443 TokenType.DELETE: lambda self: self._parse_delete(), - 444 TokenType.DESC: lambda self: self._parse_describe(), - 445 TokenType.DESCRIBE: lambda self: self._parse_describe(), - 446 TokenType.DROP: lambda self: self._parse_drop(), - 447 TokenType.END: lambda self: self._parse_commit_or_rollback(), - 448 TokenType.INSERT: lambda self: self._parse_insert(), - 449 TokenType.LOAD_DATA: lambda self: self._parse_load_data(), - 450 TokenType.MERGE: lambda self: self._parse_merge(), - 451 TokenType.ROLLBACK: lambda self: self._parse_commit_or_rollback(), - 452 TokenType.UNCACHE: lambda self: self._parse_uncache(), - 453 TokenType.UPDATE: lambda self: self._parse_update(), - 454 TokenType.USE: lambda self: self.expression( - 455 exp.Use, - 456 kind=self._match_texts(("ROLE", "WAREHOUSE", "DATABASE", "SCHEMA")) - 457 and exp.Var(this=self._prev.text), - 458 this=self._parse_table(schema=False), - 459 ), - 460 } - 461 - 462 UNARY_PARSERS = { - 463 TokenType.PLUS: lambda self: self._parse_unary(), # Unary + is handled as a no-op - 464 TokenType.NOT: lambda self: self.expression(exp.Not, this=self._parse_equality()), - 465 TokenType.TILDA: lambda self: self.expression(exp.BitwiseNot, this=self._parse_unary()), - 466 TokenType.DASH: lambda self: self.expression(exp.Neg, this=self._parse_unary()), - 467 } - 468 - 469 PRIMARY_PARSERS = { - 470 TokenType.STRING: lambda self, token: self.expression( - 471 exp.Literal, this=token.text, is_string=True - 472 ), - 473 TokenType.NUMBER: lambda self, token: self.expression( - 474 exp.Literal, this=token.text, is_string=False - 475 ), - 476 TokenType.STAR: lambda self, _: self.expression( - 477 exp.Star, - 478 **{"except": self._parse_except(), "replace": self._parse_replace()}, - 479 ), - 480 TokenType.NULL: lambda self, _: self.expression(exp.Null), - 481 TokenType.TRUE: lambda self, _: self.expression(exp.Boolean, this=True), - 482 TokenType.FALSE: lambda self, _: self.expression(exp.Boolean, this=False), - 483 TokenType.BIT_STRING: lambda self, token: self.expression(exp.BitString, this=token.text), - 484 TokenType.HEX_STRING: lambda self, token: self.expression(exp.HexString, this=token.text), - 485 TokenType.BYTE_STRING: lambda self, token: self.expression(exp.ByteString, this=token.text), - 486 TokenType.INTRODUCER: lambda self, token: self._parse_introducer(token), - 487 TokenType.NATIONAL: lambda self, token: self._parse_national(token), - 488 TokenType.SESSION_PARAMETER: lambda self, _: self._parse_session_parameter(), - 489 } - 490 - 491 PLACEHOLDER_PARSERS = { - 492 TokenType.PLACEHOLDER: lambda self: self.expression(exp.Placeholder), - 493 TokenType.PARAMETER: lambda self: self._parse_parameter(), - 494 TokenType.COLON: lambda self: self.expression(exp.Placeholder, this=self._prev.text) - 495 if self._match_set((TokenType.NUMBER, TokenType.VAR)) - 496 else None, - 497 } - 498 - 499 RANGE_PARSERS = { - 500 TokenType.BETWEEN: lambda self, this: self._parse_between(this), - 501 TokenType.GLOB: lambda self, this: self._parse_escape( - 502 self.expression(exp.Glob, this=this, expression=self._parse_bitwise()) - 503 ), - 504 TokenType.OVERLAPS: lambda self, this: self._parse_escape( - 505 self.expression(exp.Overlaps, this=this, expression=self._parse_bitwise()) - 506 ), - 507 TokenType.IN: lambda self, this: self._parse_in(this), - 508 TokenType.IS: lambda self, this: self._parse_is(this), - 509 TokenType.LIKE: lambda self, this: self._parse_escape( - 510 self.expression(exp.Like, this=this, expression=self._parse_bitwise()) + 261 UPDATE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.SET} + 262 + 263 TRIM_TYPES = {TokenType.LEADING, TokenType.TRAILING, TokenType.BOTH} + 264 + 265 FUNC_TOKENS = { + 266 TokenType.COMMAND, + 267 TokenType.CURRENT_DATE, + 268 TokenType.CURRENT_DATETIME, + 269 TokenType.CURRENT_TIMESTAMP, + 270 TokenType.CURRENT_TIME, + 271 TokenType.FILTER, + 272 TokenType.FIRST, + 273 TokenType.FORMAT, + 274 TokenType.IDENTIFIER, + 275 TokenType.INDEX, + 276 TokenType.ISNULL, + 277 TokenType.ILIKE, + 278 TokenType.LIKE, + 279 TokenType.MERGE, + 280 TokenType.OFFSET, + 281 TokenType.PRIMARY_KEY, + 282 TokenType.REPLACE, + 283 TokenType.ROW, + 284 TokenType.UNNEST, + 285 TokenType.VAR, + 286 TokenType.LEFT, + 287 TokenType.RIGHT, + 288 TokenType.DATE, + 289 TokenType.DATETIME, + 290 TokenType.TABLE, + 291 TokenType.TIMESTAMP, + 292 TokenType.TIMESTAMPTZ, + 293 TokenType.WINDOW, + 294 *TYPE_TOKENS, + 295 *SUBQUERY_PREDICATES, + 296 } + 297 + 298 CONJUNCTION = { + 299 TokenType.AND: exp.And, + 300 TokenType.OR: exp.Or, + 301 } + 302 + 303 EQUALITY = { + 304 TokenType.EQ: exp.EQ, + 305 TokenType.NEQ: exp.NEQ, + 306 TokenType.NULLSAFE_EQ: exp.NullSafeEQ, + 307 } + 308 + 309 COMPARISON = { + 310 TokenType.GT: exp.GT, + 311 TokenType.GTE: exp.GTE, + 312 TokenType.LT: exp.LT, + 313 TokenType.LTE: exp.LTE, + 314 } + 315 + 316 BITWISE = { + 317 TokenType.AMP: exp.BitwiseAnd, + 318 TokenType.CARET: exp.BitwiseXor, + 319 TokenType.PIPE: exp.BitwiseOr, + 320 TokenType.DPIPE: exp.DPipe, + 321 } + 322 + 323 TERM = { + 324 TokenType.DASH: exp.Sub, + 325 TokenType.PLUS: exp.Add, + 326 TokenType.MOD: exp.Mod, + 327 TokenType.COLLATE: exp.Collate, + 328 } + 329 + 330 FACTOR = { + 331 TokenType.DIV: exp.IntDiv, + 332 TokenType.LR_ARROW: exp.Distance, + 333 TokenType.SLASH: exp.Div, + 334 TokenType.STAR: exp.Mul, + 335 } + 336 + 337 TIMESTAMPS = { + 338 TokenType.TIME, + 339 TokenType.TIMESTAMP, + 340 TokenType.TIMESTAMPTZ, + 341 TokenType.TIMESTAMPLTZ, + 342 } + 343 + 344 SET_OPERATIONS = { + 345 TokenType.UNION, + 346 TokenType.INTERSECT, + 347 TokenType.EXCEPT, + 348 } + 349 + 350 JOIN_SIDES = { + 351 TokenType.LEFT, + 352 TokenType.RIGHT, + 353 TokenType.FULL, + 354 } + 355 + 356 JOIN_KINDS = { + 357 TokenType.INNER, + 358 TokenType.OUTER, + 359 TokenType.CROSS, + 360 TokenType.SEMI, + 361 TokenType.ANTI, + 362 } + 363 + 364 LAMBDAS = { + 365 TokenType.ARROW: lambda self, expressions: self.expression( + 366 exp.Lambda, + 367 this=self._parse_conjunction().transform( + 368 self._replace_lambda, {node.name for node in expressions} + 369 ), + 370 expressions=expressions, + 371 ), + 372 TokenType.FARROW: lambda self, expressions: self.expression( + 373 exp.Kwarg, + 374 this=exp.Var(this=expressions[0].name), + 375 expression=self._parse_conjunction(), + 376 ), + 377 } + 378 + 379 COLUMN_OPERATORS = { + 380 TokenType.DOT: None, + 381 TokenType.DCOLON: lambda self, this, to: self.expression( + 382 exp.Cast, + 383 this=this, + 384 to=to, + 385 ), + 386 TokenType.ARROW: lambda self, this, path: self.expression( + 387 exp.JSONExtract, + 388 this=this, + 389 expression=path, + 390 ), + 391 TokenType.DARROW: lambda self, this, path: self.expression( + 392 exp.JSONExtractScalar, + 393 this=this, + 394 expression=path, + 395 ), + 396 TokenType.HASH_ARROW: lambda self, this, path: self.expression( + 397 exp.JSONBExtract, + 398 this=this, + 399 expression=path, + 400 ), + 401 TokenType.DHASH_ARROW: lambda self, this, path: self.expression( + 402 exp.JSONBExtractScalar, + 403 this=this, + 404 expression=path, + 405 ), + 406 TokenType.PLACEHOLDER: lambda self, this, key: self.expression( + 407 exp.JSONBContains, + 408 this=this, + 409 expression=key, + 410 ), + 411 } + 412 + 413 EXPRESSION_PARSERS = { + 414 exp.Column: lambda self: self._parse_column(), + 415 exp.DataType: lambda self: self._parse_types(), + 416 exp.From: lambda self: self._parse_from(), + 417 exp.Group: lambda self: self._parse_group(), + 418 exp.Identifier: lambda self: self._parse_id_var(), + 419 exp.Lateral: lambda self: self._parse_lateral(), + 420 exp.Join: lambda self: self._parse_join(), + 421 exp.Order: lambda self: self._parse_order(), + 422 exp.Cluster: lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), + 423 exp.Sort: lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), + 424 exp.Lambda: lambda self: self._parse_lambda(), + 425 exp.Limit: lambda self: self._parse_limit(), + 426 exp.Offset: lambda self: self._parse_offset(), + 427 exp.TableAlias: lambda self: self._parse_table_alias(), + 428 exp.Table: lambda self: self._parse_table(), + 429 exp.Condition: lambda self: self._parse_conjunction(), + 430 exp.Expression: lambda self: self._parse_statement(), + 431 exp.Properties: lambda self: self._parse_properties(), + 432 exp.Where: lambda self: self._parse_where(), + 433 exp.Ordered: lambda self: self._parse_ordered(), + 434 exp.Having: lambda self: self._parse_having(), + 435 exp.With: lambda self: self._parse_with(), + 436 exp.Window: lambda self: self._parse_named_window(), + 437 exp.Qualify: lambda self: self._parse_qualify(), + 438 "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(), + 439 } + 440 + 441 STATEMENT_PARSERS = { + 442 TokenType.ALTER: lambda self: self._parse_alter(), + 443 TokenType.BEGIN: lambda self: self._parse_transaction(), + 444 TokenType.CACHE: lambda self: self._parse_cache(), + 445 TokenType.COMMIT: lambda self: self._parse_commit_or_rollback(), + 446 TokenType.COMMENT: lambda self: self._parse_comment(), + 447 TokenType.CREATE: lambda self: self._parse_create(), + 448 TokenType.DELETE: lambda self: self._parse_delete(), + 449 TokenType.DESC: lambda self: self._parse_describe(), + 450 TokenType.DESCRIBE: lambda self: self._parse_describe(), + 451 TokenType.DROP: lambda self: self._parse_drop(), + 452 TokenType.END: lambda self: self._parse_commit_or_rollback(), + 453 TokenType.INSERT: lambda self: self._parse_insert(), + 454 TokenType.LOAD_DATA: lambda self: self._parse_load_data(), + 455 TokenType.MERGE: lambda self: self._parse_merge(), + 456 TokenType.ROLLBACK: lambda self: self._parse_commit_or_rollback(), + 457 TokenType.UNCACHE: lambda self: self._parse_uncache(), + 458 TokenType.UPDATE: lambda self: self._parse_update(), + 459 TokenType.USE: lambda self: self.expression( + 460 exp.Use, + 461 kind=self._match_texts(("ROLE", "WAREHOUSE", "DATABASE", "SCHEMA")) + 462 and exp.Var(this=self._prev.text), + 463 this=self._parse_table(schema=False), + 464 ), + 465 } + 466 + 467 UNARY_PARSERS = { + 468 TokenType.PLUS: lambda self: self._parse_unary(), # Unary + is handled as a no-op + 469 TokenType.NOT: lambda self: self.expression(exp.Not, this=self._parse_equality()), + 470 TokenType.TILDA: lambda self: self.expression(exp.BitwiseNot, this=self._parse_unary()), + 471 TokenType.DASH: lambda self: self.expression(exp.Neg, this=self._parse_unary()), + 472 } + 473 + 474 PRIMARY_PARSERS = { + 475 TokenType.STRING: lambda self, token: self.expression( + 476 exp.Literal, this=token.text, is_string=True + 477 ), + 478 TokenType.NUMBER: lambda self, token: self.expression( + 479 exp.Literal, this=token.text, is_string=False + 480 ), + 481 TokenType.STAR: lambda self, _: self.expression( + 482 exp.Star, + 483 **{"except": self._parse_except(), "replace": self._parse_replace()}, + 484 ), + 485 TokenType.NULL: lambda self, _: self.expression(exp.Null), + 486 TokenType.TRUE: lambda self, _: self.expression(exp.Boolean, this=True), + 487 TokenType.FALSE: lambda self, _: self.expression(exp.Boolean, this=False), + 488 TokenType.BIT_STRING: lambda self, token: self.expression(exp.BitString, this=token.text), + 489 TokenType.HEX_STRING: lambda self, token: self.expression(exp.HexString, this=token.text), + 490 TokenType.BYTE_STRING: lambda self, token: self.expression(exp.ByteString, this=token.text), + 491 TokenType.INTRODUCER: lambda self, token: self._parse_introducer(token), + 492 TokenType.NATIONAL: lambda self, token: self._parse_national(token), + 493 TokenType.SESSION_PARAMETER: lambda self, _: self._parse_session_parameter(), + 494 } + 495 + 496 PLACEHOLDER_PARSERS = { + 497 TokenType.PLACEHOLDER: lambda self: self.expression(exp.Placeholder), + 498 TokenType.PARAMETER: lambda self: self._parse_parameter(), + 499 TokenType.COLON: lambda self: self.expression(exp.Placeholder, this=self._prev.text) + 500 if self._match_set((TokenType.NUMBER, TokenType.VAR)) + 501 else None, + 502 } + 503 + 504 RANGE_PARSERS = { + 505 TokenType.BETWEEN: lambda self, this: self._parse_between(this), + 506 TokenType.GLOB: lambda self, this: self._parse_escape( + 507 self.expression(exp.Glob, this=this, expression=self._parse_bitwise()) + 508 ), + 509 TokenType.OVERLAPS: lambda self, this: self._parse_escape( + 510 self.expression(exp.Overlaps, this=this, expression=self._parse_bitwise()) 511 ), - 512 TokenType.ILIKE: lambda self, this: self._parse_escape( - 513 self.expression(exp.ILike, this=this, expression=self._parse_bitwise()) - 514 ), - 515 TokenType.IRLIKE: lambda self, this: self.expression( - 516 exp.RegexpILike, this=this, expression=self._parse_bitwise() - 517 ), - 518 TokenType.RLIKE: lambda self, this: self.expression( - 519 exp.RegexpLike, this=this, expression=self._parse_bitwise() - 520 ), - 521 TokenType.SIMILAR_TO: lambda self, this: self.expression( - 522 exp.SimilarTo, this=this, expression=self._parse_bitwise() - 523 ), - 524 } - 525 - 526 PROPERTY_PARSERS = { - 527 "AFTER": lambda self: self._parse_afterjournal( - 528 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" - 529 ), - 530 "ALGORITHM": lambda self: self._parse_property_assignment(exp.AlgorithmProperty), - 531 "AUTO_INCREMENT": lambda self: self._parse_property_assignment(exp.AutoIncrementProperty), - 532 "BEFORE": lambda self: self._parse_journal( + 512 TokenType.IN: lambda self, this: self._parse_in(this), + 513 TokenType.IS: lambda self, this: self._parse_is(this), + 514 TokenType.LIKE: lambda self, this: self._parse_escape( + 515 self.expression(exp.Like, this=this, expression=self._parse_bitwise()) + 516 ), + 517 TokenType.ILIKE: lambda self, this: self._parse_escape( + 518 self.expression(exp.ILike, this=this, expression=self._parse_bitwise()) + 519 ), + 520 TokenType.IRLIKE: lambda self, this: self.expression( + 521 exp.RegexpILike, this=this, expression=self._parse_bitwise() + 522 ), + 523 TokenType.RLIKE: lambda self, this: self.expression( + 524 exp.RegexpLike, this=this, expression=self._parse_bitwise() + 525 ), + 526 TokenType.SIMILAR_TO: lambda self, this: self.expression( + 527 exp.SimilarTo, this=this, expression=self._parse_bitwise() + 528 ), + 529 } + 530 + 531 PROPERTY_PARSERS = { + 532 "AFTER": lambda self: self._parse_afterjournal( 533 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" 534 ), - 535 "BLOCKCOMPRESSION": lambda self: self._parse_blockcompression(), - 536 "CHARACTER SET": lambda self: self._parse_character_set(), - 537 "CHECKSUM": lambda self: self._parse_checksum(), - 538 "CLUSTER BY": lambda self: self.expression( - 539 exp.Cluster, expressions=self._parse_csv(self._parse_ordered) - 540 ), - 541 "COLLATE": lambda self: self._parse_property_assignment(exp.CollateProperty), - 542 "COMMENT": lambda self: self._parse_property_assignment(exp.SchemaCommentProperty), - 543 "DATABLOCKSIZE": lambda self: self._parse_datablocksize( - 544 default=self._prev.text.upper() == "DEFAULT" + 535 "ALGORITHM": lambda self: self._parse_property_assignment(exp.AlgorithmProperty), + 536 "AUTO_INCREMENT": lambda self: self._parse_property_assignment(exp.AutoIncrementProperty), + 537 "BEFORE": lambda self: self._parse_journal( + 538 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" + 539 ), + 540 "BLOCKCOMPRESSION": lambda self: self._parse_blockcompression(), + 541 "CHARACTER SET": lambda self: self._parse_character_set(), + 542 "CHECKSUM": lambda self: self._parse_checksum(), + 543 "CLUSTER BY": lambda self: self.expression( + 544 exp.Cluster, expressions=self._parse_csv(self._parse_ordered) 545 ), - 546 "DEFINER": lambda self: self._parse_definer(), - 547 "DETERMINISTIC": lambda self: self.expression( - 548 exp.VolatilityProperty, this=exp.Literal.string("IMMUTABLE") - 549 ), - 550 "DISTKEY": lambda self: self._parse_distkey(), - 551 "DISTSTYLE": lambda self: self._parse_property_assignment(exp.DistStyleProperty), - 552 "EXECUTE": lambda self: self._parse_property_assignment(exp.ExecuteAsProperty), - 553 "EXTERNAL": lambda self: self.expression(exp.ExternalProperty), - 554 "FALLBACK": lambda self: self._parse_fallback(no=self._prev.text.upper() == "NO"), - 555 "FORMAT": lambda self: self._parse_property_assignment(exp.FileFormatProperty), - 556 "FREESPACE": lambda self: self._parse_freespace(), - 557 "GLOBAL": lambda self: self._parse_temporary(global_=True), - 558 "IMMUTABLE": lambda self: self.expression( - 559 exp.VolatilityProperty, this=exp.Literal.string("IMMUTABLE") - 560 ), - 561 "JOURNAL": lambda self: self._parse_journal( - 562 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" - 563 ), - 564 "LANGUAGE": lambda self: self._parse_property_assignment(exp.LanguageProperty), - 565 "LIKE": lambda self: self._parse_create_like(), - 566 "LOCAL": lambda self: self._parse_afterjournal(no=False, dual=False, local=True), - 567 "LOCATION": lambda self: self._parse_property_assignment(exp.LocationProperty), - 568 "LOCK": lambda self: self._parse_locking(), - 569 "LOCKING": lambda self: self._parse_locking(), - 570 "LOG": lambda self: self._parse_log(no=self._prev.text.upper() == "NO"), - 571 "MATERIALIZED": lambda self: self.expression(exp.MaterializedProperty), - 572 "MAX": lambda self: self._parse_datablocksize(), - 573 "MAXIMUM": lambda self: self._parse_datablocksize(), - 574 "MERGEBLOCKRATIO": lambda self: self._parse_mergeblockratio( - 575 no=self._prev.text.upper() == "NO", default=self._prev.text.upper() == "DEFAULT" - 576 ), - 577 "MIN": lambda self: self._parse_datablocksize(), - 578 "MINIMUM": lambda self: self._parse_datablocksize(), - 579 "MULTISET": lambda self: self.expression(exp.SetProperty, multi=True), - 580 "NO": lambda self: self._parse_noprimaryindex(), - 581 "NOT": lambda self: self._parse_afterjournal(no=False, dual=False, local=False), - 582 "ON": lambda self: self._parse_oncommit(), - 583 "PARTITION BY": lambda self: self._parse_partitioned_by(), - 584 "PARTITIONED BY": lambda self: self._parse_partitioned_by(), - 585 "PARTITIONED_BY": lambda self: self._parse_partitioned_by(), - 586 "RETURNS": lambda self: self._parse_returns(), - 587 "ROW": lambda self: self._parse_row(), - 588 "SET": lambda self: self.expression(exp.SetProperty, multi=False), - 589 "SORTKEY": lambda self: self._parse_sortkey(), - 590 "STABLE": lambda self: self.expression( - 591 exp.VolatilityProperty, this=exp.Literal.string("STABLE") - 592 ), - 593 "STORED": lambda self: self._parse_property_assignment(exp.FileFormatProperty), - 594 "TABLE_FORMAT": lambda self: self._parse_property_assignment(exp.TableFormatProperty), - 595 "TBLPROPERTIES": lambda self: self._parse_wrapped_csv(self._parse_property), - 596 "TEMPORARY": lambda self: self._parse_temporary(global_=False), - 597 "TRANSIENT": lambda self: self.expression(exp.TransientProperty), - 598 "USING": lambda self: self._parse_property_assignment(exp.TableFormatProperty), - 599 "VOLATILE": lambda self: self.expression( - 600 exp.VolatilityProperty, this=exp.Literal.string("VOLATILE") - 601 ), - 602 "WITH": lambda self: self._parse_with_property(), - 603 } - 604 - 605 CONSTRAINT_PARSERS = { - 606 "AUTOINCREMENT": lambda self: self._parse_auto_increment(), - 607 "AUTO_INCREMENT": lambda self: self._parse_auto_increment(), - 608 "CASESPECIFIC": lambda self: self.expression(exp.CaseSpecificColumnConstraint, not_=False), - 609 "CHARACTER SET": lambda self: self.expression( - 610 exp.CharacterSetColumnConstraint, this=self._parse_var_or_string() - 611 ), - 612 "CHECK": lambda self: self.expression( - 613 exp.CheckColumnConstraint, this=self._parse_wrapped(self._parse_conjunction) - 614 ), - 615 "COLLATE": lambda self: self.expression( - 616 exp.CollateColumnConstraint, this=self._parse_var() - 617 ), - 618 "COMMENT": lambda self: self.expression( - 619 exp.CommentColumnConstraint, this=self._parse_string() - 620 ), - 621 "COMPRESS": lambda self: self._parse_compress(), - 622 "DEFAULT": lambda self: self.expression( - 623 exp.DefaultColumnConstraint, this=self._parse_bitwise() - 624 ), - 625 "ENCODE": lambda self: self.expression(exp.EncodeColumnConstraint, this=self._parse_var()), - 626 "FOREIGN KEY": lambda self: self._parse_foreign_key(), - 627 "FORMAT": lambda self: self.expression( - 628 exp.DateFormatColumnConstraint, this=self._parse_var_or_string() + 546 "COLLATE": lambda self: self._parse_property_assignment(exp.CollateProperty), + 547 "COMMENT": lambda self: self._parse_property_assignment(exp.SchemaCommentProperty), + 548 "DATABLOCKSIZE": lambda self: self._parse_datablocksize( + 549 default=self._prev.text.upper() == "DEFAULT" + 550 ), + 551 "DEFINER": lambda self: self._parse_definer(), + 552 "DETERMINISTIC": lambda self: self.expression( + 553 exp.VolatilityProperty, this=exp.Literal.string("IMMUTABLE") + 554 ), + 555 "DISTKEY": lambda self: self._parse_distkey(), + 556 "DISTSTYLE": lambda self: self._parse_property_assignment(exp.DistStyleProperty), + 557 "EXECUTE": lambda self: self._parse_property_assignment(exp.ExecuteAsProperty), + 558 "EXTERNAL": lambda self: self.expression(exp.ExternalProperty), + 559 "FALLBACK": lambda self: self._parse_fallback(no=self._prev.text.upper() == "NO"), + 560 "FORMAT": lambda self: self._parse_property_assignment(exp.FileFormatProperty), + 561 "FREESPACE": lambda self: self._parse_freespace(), + 562 "GLOBAL": lambda self: self._parse_temporary(global_=True), + 563 "IMMUTABLE": lambda self: self.expression( + 564 exp.VolatilityProperty, this=exp.Literal.string("IMMUTABLE") + 565 ), + 566 "JOURNAL": lambda self: self._parse_journal( + 567 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" + 568 ), + 569 "LANGUAGE": lambda self: self._parse_property_assignment(exp.LanguageProperty), + 570 "LIKE": lambda self: self._parse_create_like(), + 571 "LOCAL": lambda self: self._parse_afterjournal(no=False, dual=False, local=True), + 572 "LOCATION": lambda self: self._parse_property_assignment(exp.LocationProperty), + 573 "LOCK": lambda self: self._parse_locking(), + 574 "LOCKING": lambda self: self._parse_locking(), + 575 "LOG": lambda self: self._parse_log(no=self._prev.text.upper() == "NO"), + 576 "MATERIALIZED": lambda self: self.expression(exp.MaterializedProperty), + 577 "MAX": lambda self: self._parse_datablocksize(), + 578 "MAXIMUM": lambda self: self._parse_datablocksize(), + 579 "MERGEBLOCKRATIO": lambda self: self._parse_mergeblockratio( + 580 no=self._prev.text.upper() == "NO", default=self._prev.text.upper() == "DEFAULT" + 581 ), + 582 "MIN": lambda self: self._parse_datablocksize(), + 583 "MINIMUM": lambda self: self._parse_datablocksize(), + 584 "MULTISET": lambda self: self.expression(exp.SetProperty, multi=True), + 585 "NO": lambda self: self._parse_noprimaryindex(), + 586 "NOT": lambda self: self._parse_afterjournal(no=False, dual=False, local=False), + 587 "ON": lambda self: self._parse_oncommit(), + 588 "PARTITION BY": lambda self: self._parse_partitioned_by(), + 589 "PARTITIONED BY": lambda self: self._parse_partitioned_by(), + 590 "PARTITIONED_BY": lambda self: self._parse_partitioned_by(), + 591 "RETURNS": lambda self: self._parse_returns(), + 592 "ROW": lambda self: self._parse_row(), + 593 "SET": lambda self: self.expression(exp.SetProperty, multi=False), + 594 "SORTKEY": lambda self: self._parse_sortkey(), + 595 "STABLE": lambda self: self.expression( + 596 exp.VolatilityProperty, this=exp.Literal.string("STABLE") + 597 ), + 598 "STORED": lambda self: self._parse_property_assignment(exp.FileFormatProperty), + 599 "TABLE_FORMAT": lambda self: self._parse_property_assignment(exp.TableFormatProperty), + 600 "TBLPROPERTIES": lambda self: self._parse_wrapped_csv(self._parse_property), + 601 "TEMPORARY": lambda self: self._parse_temporary(global_=False), + 602 "TRANSIENT": lambda self: self.expression(exp.TransientProperty), + 603 "USING": lambda self: self._parse_property_assignment(exp.TableFormatProperty), + 604 "VOLATILE": lambda self: self.expression( + 605 exp.VolatilityProperty, this=exp.Literal.string("VOLATILE") + 606 ), + 607 "WITH": lambda self: self._parse_with_property(), + 608 } + 609 + 610 CONSTRAINT_PARSERS = { + 611 "AUTOINCREMENT": lambda self: self._parse_auto_increment(), + 612 "AUTO_INCREMENT": lambda self: self._parse_auto_increment(), + 613 "CASESPECIFIC": lambda self: self.expression(exp.CaseSpecificColumnConstraint, not_=False), + 614 "CHARACTER SET": lambda self: self.expression( + 615 exp.CharacterSetColumnConstraint, this=self._parse_var_or_string() + 616 ), + 617 "CHECK": lambda self: self.expression( + 618 exp.CheckColumnConstraint, this=self._parse_wrapped(self._parse_conjunction) + 619 ), + 620 "COLLATE": lambda self: self.expression( + 621 exp.CollateColumnConstraint, this=self._parse_var() + 622 ), + 623 "COMMENT": lambda self: self.expression( + 624 exp.CommentColumnConstraint, this=self._parse_string() + 625 ), + 626 "COMPRESS": lambda self: self._parse_compress(), + 627 "DEFAULT": lambda self: self.expression( + 628 exp.DefaultColumnConstraint, this=self._parse_bitwise() 629 ), - 630 "GENERATED": lambda self: self._parse_generated_as_identity(), - 631 "IDENTITY": lambda self: self._parse_auto_increment(), - 632 "INLINE": lambda self: self._parse_inline(), - 633 "LIKE": lambda self: self._parse_create_like(), - 634 "NOT": lambda self: self._parse_not_constraint(), - 635 "NULL": lambda self: self.expression(exp.NotNullColumnConstraint, allow_null=True), - 636 "PATH": lambda self: self.expression(exp.PathColumnConstraint, this=self._parse_string()), - 637 "PRIMARY KEY": lambda self: self._parse_primary_key(), - 638 "TITLE": lambda self: self.expression( - 639 exp.TitleColumnConstraint, this=self._parse_var_or_string() - 640 ), - 641 "UNIQUE": lambda self: self._parse_unique(), - 642 "UPPERCASE": lambda self: self.expression(exp.UppercaseColumnConstraint), - 643 } - 644 - 645 ALTER_PARSERS = { - 646 "ADD": lambda self: self._parse_alter_table_add(), - 647 "ALTER": lambda self: self._parse_alter_table_alter(), - 648 "DELETE": lambda self: self.expression(exp.Delete, where=self._parse_where()), - 649 "DROP": lambda self: self._parse_alter_table_drop(), - 650 "RENAME": lambda self: self._parse_alter_table_rename(), - 651 } - 652 - 653 SCHEMA_UNNAMED_CONSTRAINTS = {"CHECK", "FOREIGN KEY", "LIKE", "PRIMARY KEY", "UNIQUE"} - 654 - 655 NO_PAREN_FUNCTION_PARSERS = { - 656 TokenType.CASE: lambda self: self._parse_case(), - 657 TokenType.IF: lambda self: self._parse_if(), - 658 TokenType.ANY: lambda self: self.expression(exp.Any, this=self._parse_bitwise()), - 659 } - 660 - 661 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { - 662 "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST), - 663 "TRY_CONVERT": lambda self: self._parse_convert(False), - 664 "EXTRACT": lambda self: self._parse_extract(), - 665 "POSITION": lambda self: self._parse_position(), - 666 "SUBSTRING": lambda self: self._parse_substring(), - 667 "TRIM": lambda self: self._parse_trim(), - 668 "CAST": lambda self: self._parse_cast(self.STRICT_CAST), - 669 "TRY_CAST": lambda self: self._parse_cast(False), - 670 "STRING_AGG": lambda self: self._parse_string_agg(), - 671 } - 672 - 673 QUERY_MODIFIER_PARSERS = { - 674 "match": lambda self: self._parse_match_recognize(), - 675 "where": lambda self: self._parse_where(), - 676 "group": lambda self: self._parse_group(), - 677 "having": lambda self: self._parse_having(), - 678 "qualify": lambda self: self._parse_qualify(), - 679 "windows": lambda self: self._parse_window_clause(), - 680 "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute), - 681 "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), - 682 "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), - 683 "order": lambda self: self._parse_order(), - 684 "limit": lambda self: self._parse_limit(), - 685 "offset": lambda self: self._parse_offset(), - 686 "lock": lambda self: self._parse_lock(), - 687 } - 688 - 689 SHOW_PARSERS: t.Dict[str, t.Callable] = {} - 690 SET_PARSERS: t.Dict[str, t.Callable] = {} - 691 - 692 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) - 693 - 694 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} - 695 - 696 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} + 630 "ENCODE": lambda self: self.expression(exp.EncodeColumnConstraint, this=self._parse_var()), + 631 "FOREIGN KEY": lambda self: self._parse_foreign_key(), + 632 "FORMAT": lambda self: self.expression( + 633 exp.DateFormatColumnConstraint, this=self._parse_var_or_string() + 634 ), + 635 "GENERATED": lambda self: self._parse_generated_as_identity(), + 636 "IDENTITY": lambda self: self._parse_auto_increment(), + 637 "INLINE": lambda self: self._parse_inline(), + 638 "LIKE": lambda self: self._parse_create_like(), + 639 "NOT": lambda self: self._parse_not_constraint(), + 640 "NULL": lambda self: self.expression(exp.NotNullColumnConstraint, allow_null=True), + 641 "PATH": lambda self: self.expression(exp.PathColumnConstraint, this=self._parse_string()), + 642 "PRIMARY KEY": lambda self: self._parse_primary_key(), + 643 "TITLE": lambda self: self.expression( + 644 exp.TitleColumnConstraint, this=self._parse_var_or_string() + 645 ), + 646 "UNIQUE": lambda self: self._parse_unique(), + 647 "UPPERCASE": lambda self: self.expression(exp.UppercaseColumnConstraint), + 648 } + 649 + 650 ALTER_PARSERS = { + 651 "ADD": lambda self: self._parse_alter_table_add(), + 652 "ALTER": lambda self: self._parse_alter_table_alter(), + 653 "DELETE": lambda self: self.expression(exp.Delete, where=self._parse_where()), + 654 "DROP": lambda self: self._parse_alter_table_drop(), + 655 "RENAME": lambda self: self._parse_alter_table_rename(), + 656 } + 657 + 658 SCHEMA_UNNAMED_CONSTRAINTS = {"CHECK", "FOREIGN KEY", "LIKE", "PRIMARY KEY", "UNIQUE"} + 659 + 660 NO_PAREN_FUNCTION_PARSERS = { + 661 TokenType.CASE: lambda self: self._parse_case(), + 662 TokenType.IF: lambda self: self._parse_if(), + 663 TokenType.ANY: lambda self: self.expression(exp.Any, this=self._parse_bitwise()), + 664 } + 665 + 666 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { + 667 "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST), + 668 "TRY_CONVERT": lambda self: self._parse_convert(False), + 669 "EXTRACT": lambda self: self._parse_extract(), + 670 "POSITION": lambda self: self._parse_position(), + 671 "SUBSTRING": lambda self: self._parse_substring(), + 672 "TRIM": lambda self: self._parse_trim(), + 673 "CAST": lambda self: self._parse_cast(self.STRICT_CAST), + 674 "TRY_CAST": lambda self: self._parse_cast(False), + 675 "STRING_AGG": lambda self: self._parse_string_agg(), + 676 } + 677 + 678 QUERY_MODIFIER_PARSERS = { + 679 "match": lambda self: self._parse_match_recognize(), + 680 "where": lambda self: self._parse_where(), + 681 "group": lambda self: self._parse_group(), + 682 "having": lambda self: self._parse_having(), + 683 "qualify": lambda self: self._parse_qualify(), + 684 "windows": lambda self: self._parse_window_clause(), + 685 "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute), + 686 "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), + 687 "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), + 688 "order": lambda self: self._parse_order(), + 689 "limit": lambda self: self._parse_limit(), + 690 "offset": lambda self: self._parse_offset(), + 691 "lock": lambda self: self._parse_lock(), + 692 "sample": lambda self: self._parse_table_sample(as_modifier=True), + 693 } + 694 + 695 SHOW_PARSERS: t.Dict[str, t.Callable] = {} + 696 SET_PARSERS: t.Dict[str, t.Callable] = {} 697 - 698 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} + 698 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) 699 - 700 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} + 700 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} 701 - 702 STRICT_CAST = True + 702 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} 703 - 704 __slots__ = ( - 705 "error_level", - 706 "error_message_context", - 707 "sql", - 708 "errors", - 709 "index_offset", - 710 "unnest_column_only", - 711 "alias_post_tablesample", - 712 "max_errors", - 713 "null_ordering", - 714 "_tokens", - 715 "_index", - 716 "_curr", - 717 "_next", - 718 "_prev", - 719 "_prev_comments", - 720 "_show_trie", - 721 "_set_trie", - 722 ) - 723 - 724 def __init__( - 725 self, - 726 error_level: t.Optional[ErrorLevel] = None, - 727 error_message_context: int = 100, - 728 index_offset: int = 0, - 729 unnest_column_only: bool = False, - 730 alias_post_tablesample: bool = False, - 731 max_errors: int = 3, - 732 null_ordering: t.Optional[str] = None, - 733 ): - 734 self.error_level = error_level or ErrorLevel.IMMEDIATE - 735 self.error_message_context = error_message_context - 736 self.index_offset = index_offset - 737 self.unnest_column_only = unnest_column_only - 738 self.alias_post_tablesample = alias_post_tablesample - 739 self.max_errors = max_errors - 740 self.null_ordering = null_ordering - 741 self.reset() - 742 - 743 def reset(self): - 744 self.sql = "" - 745 self.errors = [] - 746 self._tokens = [] - 747 self._index = 0 - 748 self._curr = None - 749 self._next = None - 750 self._prev = None - 751 self._prev_comments = None - 752 - 753 def parse( - 754 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None - 755 ) -> t.List[t.Optional[exp.Expression]]: - 756 """ - 757 Parses a list of tokens and returns a list of syntax trees, one tree - 758 per parsed SQL statement. - 759 - 760 Args: - 761 raw_tokens: the list of tokens. - 762 sql: the original SQL string, used to produce helpful debug messages. - 763 - 764 Returns: - 765 The list of syntax trees. - 766 """ - 767 return self._parse( - 768 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql - 769 ) - 770 - 771 def parse_into( - 772 self, - 773 expression_types: exp.IntoType, - 774 raw_tokens: t.List[Token], - 775 sql: t.Optional[str] = None, - 776 ) -> t.List[t.Optional[exp.Expression]]: - 777 """ - 778 Parses a list of tokens into a given Expression type. If a collection of Expression - 779 types is given instead, this method will try to parse the token list into each one - 780 of them, stopping at the first for which the parsing succeeds. - 781 - 782 Args: - 783 expression_types: the expression type(s) to try and parse the token list into. - 784 raw_tokens: the list of tokens. - 785 sql: the original SQL string, used to produce helpful debug messages. - 786 - 787 Returns: - 788 The target Expression. - 789 """ - 790 errors = [] - 791 for expression_type in ensure_collection(expression_types): - 792 parser = self.EXPRESSION_PARSERS.get(expression_type) - 793 if not parser: - 794 raise TypeError(f"No parser registered for {expression_type}") - 795 try: - 796 return self._parse(parser, raw_tokens, sql) - 797 except ParseError as e: - 798 e.errors[0]["into_expression"] = expression_type - 799 errors.append(e) - 800 raise ParseError( - 801 f"Failed to parse into {expression_types}", - 802 errors=merge_errors(errors), - 803 ) from errors[-1] - 804 - 805 def _parse( - 806 self, - 807 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], - 808 raw_tokens: t.List[Token], - 809 sql: t.Optional[str] = None, - 810 ) -> t.List[t.Optional[exp.Expression]]: - 811 self.reset() - 812 self.sql = sql or "" - 813 total = len(raw_tokens) - 814 chunks: t.List[t.List[Token]] = [[]] - 815 - 816 for i, token in enumerate(raw_tokens): - 817 if token.token_type == TokenType.SEMICOLON: - 818 if i < total - 1: - 819 chunks.append([]) - 820 else: - 821 chunks[-1].append(token) - 822 - 823 expressions = [] - 824 - 825 for tokens in chunks: - 826 self._index = -1 - 827 self._tokens = tokens - 828 self._advance() - 829 - 830 expressions.append(parse_method(self)) - 831 - 832 if self._index < len(self._tokens): - 833 self.raise_error("Invalid expression / Unexpected token") - 834 - 835 self.check_errors() - 836 - 837 return expressions - 838 - 839 def check_errors(self) -> None: - 840 """ - 841 Logs or raises any found errors, depending on the chosen error level setting. - 842 """ - 843 if self.error_level == ErrorLevel.WARN: - 844 for error in self.errors: - 845 logger.error(str(error)) - 846 elif self.error_level == ErrorLevel.RAISE and self.errors: - 847 raise ParseError( - 848 concat_messages(self.errors, self.max_errors), - 849 errors=merge_errors(self.errors), - 850 ) - 851 - 852 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: - 853 """ - 854 Appends an error in the list of recorded errors or raises it, depending on the chosen - 855 error level setting. - 856 """ - 857 token = token or self._curr or self._prev or Token.string("") - 858 start = self._find_token(token) - 859 end = start + len(token.text) - 860 start_context = self.sql[max(start - self.error_message_context, 0) : start] - 861 highlight = self.sql[start:end] - 862 end_context = self.sql[end : end + self.error_message_context] - 863 - 864 error = ParseError.new( - 865 f"{message}. Line {token.line}, Col: {token.col}.\n" - 866 f" {start_context}\033[4m{highlight}\033[0m{end_context}", - 867 description=message, - 868 line=token.line, - 869 col=token.col, - 870 start_context=start_context, - 871 highlight=highlight, - 872 end_context=end_context, - 873 ) - 874 - 875 if self.error_level == ErrorLevel.IMMEDIATE: - 876 raise error - 877 - 878 self.errors.append(error) - 879 - 880 def expression( - 881 self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs - 882 ) -> exp.Expression: - 883 """ - 884 Creates a new, validated Expression. + 704 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} + 705 + 706 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} + 707 + 708 STRICT_CAST = True + 709 + 710 INTEGER_DIVISION = True + 711 + 712 __slots__ = ( + 713 "error_level", + 714 "error_message_context", + 715 "sql", + 716 "errors", + 717 "index_offset", + 718 "unnest_column_only", + 719 "alias_post_tablesample", + 720 "max_errors", + 721 "null_ordering", + 722 "_tokens", + 723 "_index", + 724 "_curr", + 725 "_next", + 726 "_prev", + 727 "_prev_comments", + 728 "_show_trie", + 729 "_set_trie", + 730 ) + 731 + 732 def __init__( + 733 self, + 734 error_level: t.Optional[ErrorLevel] = None, + 735 error_message_context: int = 100, + 736 index_offset: int = 0, + 737 unnest_column_only: bool = False, + 738 alias_post_tablesample: bool = False, + 739 max_errors: int = 3, + 740 null_ordering: t.Optional[str] = None, + 741 ): + 742 self.error_level = error_level or ErrorLevel.IMMEDIATE + 743 self.error_message_context = error_message_context + 744 self.index_offset = index_offset + 745 self.unnest_column_only = unnest_column_only + 746 self.alias_post_tablesample = alias_post_tablesample + 747 self.max_errors = max_errors + 748 self.null_ordering = null_ordering + 749 self.reset() + 750 + 751 def reset(self): + 752 self.sql = "" + 753 self.errors = [] + 754 self._tokens = [] + 755 self._index = 0 + 756 self._curr = None + 757 self._next = None + 758 self._prev = None + 759 self._prev_comments = None + 760 + 761 def parse( + 762 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None + 763 ) -> t.List[t.Optional[exp.Expression]]: + 764 """ + 765 Parses a list of tokens and returns a list of syntax trees, one tree + 766 per parsed SQL statement. + 767 + 768 Args: + 769 raw_tokens: the list of tokens. + 770 sql: the original SQL string, used to produce helpful debug messages. + 771 + 772 Returns: + 773 The list of syntax trees. + 774 """ + 775 return self._parse( + 776 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql + 777 ) + 778 + 779 def parse_into( + 780 self, + 781 expression_types: exp.IntoType, + 782 raw_tokens: t.List[Token], + 783 sql: t.Optional[str] = None, + 784 ) -> t.List[t.Optional[exp.Expression]]: + 785 """ + 786 Parses a list of tokens into a given Expression type. If a collection of Expression + 787 types is given instead, this method will try to parse the token list into each one + 788 of them, stopping at the first for which the parsing succeeds. + 789 + 790 Args: + 791 expression_types: the expression type(s) to try and parse the token list into. + 792 raw_tokens: the list of tokens. + 793 sql: the original SQL string, used to produce helpful debug messages. + 794 + 795 Returns: + 796 The target Expression. + 797 """ + 798 errors = [] + 799 for expression_type in ensure_collection(expression_types): + 800 parser = self.EXPRESSION_PARSERS.get(expression_type) + 801 if not parser: + 802 raise TypeError(f"No parser registered for {expression_type}") + 803 try: + 804 return self._parse(parser, raw_tokens, sql) + 805 except ParseError as e: + 806 e.errors[0]["into_expression"] = expression_type + 807 errors.append(e) + 808 raise ParseError( + 809 f"Failed to parse into {expression_types}", + 810 errors=merge_errors(errors), + 811 ) from errors[-1] + 812 + 813 def _parse( + 814 self, + 815 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], + 816 raw_tokens: t.List[Token], + 817 sql: t.Optional[str] = None, + 818 ) -> t.List[t.Optional[exp.Expression]]: + 819 self.reset() + 820 self.sql = sql or "" + 821 total = len(raw_tokens) + 822 chunks: t.List[t.List[Token]] = [[]] + 823 + 824 for i, token in enumerate(raw_tokens): + 825 if token.token_type == TokenType.SEMICOLON: + 826 if i < total - 1: + 827 chunks.append([]) + 828 else: + 829 chunks[-1].append(token) + 830 + 831 expressions = [] + 832 + 833 for tokens in chunks: + 834 self._index = -1 + 835 self._tokens = tokens + 836 self._advance() + 837 + 838 expressions.append(parse_method(self)) + 839 + 840 if self._index < len(self._tokens): + 841 self.raise_error("Invalid expression / Unexpected token") + 842 + 843 self.check_errors() + 844 + 845 return expressions + 846 + 847 def check_errors(self) -> None: + 848 """ + 849 Logs or raises any found errors, depending on the chosen error level setting. + 850 """ + 851 if self.error_level == ErrorLevel.WARN: + 852 for error in self.errors: + 853 logger.error(str(error)) + 854 elif self.error_level == ErrorLevel.RAISE and self.errors: + 855 raise ParseError( + 856 concat_messages(self.errors, self.max_errors), + 857 errors=merge_errors(self.errors), + 858 ) + 859 + 860 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: + 861 """ + 862 Appends an error in the list of recorded errors or raises it, depending on the chosen + 863 error level setting. + 864 """ + 865 token = token or self._curr or self._prev or Token.string("") + 866 start = self._find_token(token) + 867 end = start + len(token.text) + 868 start_context = self.sql[max(start - self.error_message_context, 0) : start] + 869 highlight = self.sql[start:end] + 870 end_context = self.sql[end : end + self.error_message_context] + 871 + 872 error = ParseError.new( + 873 f"{message}. Line {token.line}, Col: {token.col}.\n" + 874 f" {start_context}\033[4m{highlight}\033[0m{end_context}", + 875 description=message, + 876 line=token.line, + 877 col=token.col, + 878 start_context=start_context, + 879 highlight=highlight, + 880 end_context=end_context, + 881 ) + 882 + 883 if self.error_level == ErrorLevel.IMMEDIATE: + 884 raise error 885 - 886 Args: - 887 exp_class: the expression class to instantiate. - 888 comments: an optional list of comments to attach to the expression. - 889 kwargs: the arguments to set for the expression along with their respective values. - 890 - 891 Returns: - 892 The target expression. - 893 """ - 894 instance = exp_class(**kwargs) - 895 if self._prev_comments: - 896 instance.comments = self._prev_comments - 897 self._prev_comments = None - 898 if comments: - 899 instance.comments = comments - 900 self.validate_expression(instance) - 901 return instance - 902 - 903 def validate_expression( - 904 self, expression: exp.Expression, args: t.Optional[t.List] = None - 905 ) -> None: - 906 """ - 907 Validates an already instantiated expression, making sure that all its mandatory arguments - 908 are set. - 909 - 910 Args: - 911 expression: the expression to validate. - 912 args: an optional list of items that was used to instantiate the expression, if it's a Func. - 913 """ - 914 if self.error_level == ErrorLevel.IGNORE: - 915 return - 916 - 917 for error_message in expression.error_messages(args): - 918 self.raise_error(error_message) - 919 - 920 def _find_sql(self, start: Token, end: Token) -> str: - 921 return self.sql[self._find_token(start) : self._find_token(end) + len(end.text)] - 922 - 923 def _find_token(self, token: Token) -> int: - 924 line = 1 - 925 col = 1 - 926 index = 0 + 886 self.errors.append(error) + 887 + 888 def expression( + 889 self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs + 890 ) -> exp.Expression: + 891 """ + 892 Creates a new, validated Expression. + 893 + 894 Args: + 895 exp_class: the expression class to instantiate. + 896 comments: an optional list of comments to attach to the expression. + 897 kwargs: the arguments to set for the expression along with their respective values. + 898 + 899 Returns: + 900 The target expression. + 901 """ + 902 instance = exp_class(**kwargs) + 903 if self._prev_comments: + 904 instance.comments = self._prev_comments + 905 self._prev_comments = None + 906 if comments: + 907 instance.comments = comments + 908 self.validate_expression(instance) + 909 return instance + 910 + 911 def validate_expression( + 912 self, expression: exp.Expression, args: t.Optional[t.List] = None + 913 ) -> None: + 914 """ + 915 Validates an already instantiated expression, making sure that all its mandatory arguments + 916 are set. + 917 + 918 Args: + 919 expression: the expression to validate. + 920 args: an optional list of items that was used to instantiate the expression, if it's a Func. + 921 """ + 922 if self.error_level == ErrorLevel.IGNORE: + 923 return + 924 + 925 for error_message in expression.error_messages(args): + 926 self.raise_error(error_message) 927 - 928 while line < token.line or col < token.col: - 929 if Tokenizer.WHITE_SPACE.get(self.sql[index]) == TokenType.BREAK: - 930 line += 1 - 931 col = 1 - 932 else: - 933 col += 1 - 934 index += 1 + 928 def _find_sql(self, start: Token, end: Token) -> str: + 929 return self.sql[self._find_token(start) : self._find_token(end) + len(end.text)] + 930 + 931 def _find_token(self, token: Token) -> int: + 932 line = 1 + 933 col = 1 + 934 index = 0 935 - 936 return index - 937 - 938 def _advance(self, times: int = 1) -> None: - 939 self._index += times - 940 self._curr = seq_get(self._tokens, self._index) - 941 self._next = seq_get(self._tokens, self._index + 1) - 942 if self._index > 0: - 943 self._prev = self._tokens[self._index - 1] - 944 self._prev_comments = self._prev.comments - 945 else: - 946 self._prev = None - 947 self._prev_comments = None - 948 - 949 def _retreat(self, index: int) -> None: - 950 self._advance(index - self._index) - 951 - 952 def _parse_command(self) -> exp.Expression: - 953 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) - 954 - 955 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: - 956 start = self._prev - 957 exists = self._parse_exists() if allow_exists else None - 958 - 959 self._match(TokenType.ON) + 936 while line < token.line or col < token.col: + 937 if Tokenizer.WHITE_SPACE.get(self.sql[index]) == TokenType.BREAK: + 938 line += 1 + 939 col = 1 + 940 else: + 941 col += 1 + 942 index += 1 + 943 + 944 return index + 945 + 946 def _advance(self, times: int = 1) -> None: + 947 self._index += times + 948 self._curr = seq_get(self._tokens, self._index) + 949 self._next = seq_get(self._tokens, self._index + 1) + 950 if self._index > 0: + 951 self._prev = self._tokens[self._index - 1] + 952 self._prev_comments = self._prev.comments + 953 else: + 954 self._prev = None + 955 self._prev_comments = None + 956 + 957 def _retreat(self, index: int) -> None: + 958 if index != self._index: + 959 self._advance(index - self._index) 960 - 961 kind = self._match_set(self.CREATABLES) and self._prev - 962 - 963 if not kind: - 964 return self._parse_as_command(start) - 965 - 966 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): - 967 this = self._parse_user_defined_function(kind=kind.token_type) - 968 elif kind.token_type == TokenType.TABLE: - 969 this = self._parse_table() - 970 elif kind.token_type == TokenType.COLUMN: - 971 this = self._parse_column() - 972 else: - 973 this = self._parse_id_var() + 961 def _parse_command(self) -> exp.Expression: + 962 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) + 963 + 964 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: + 965 start = self._prev + 966 exists = self._parse_exists() if allow_exists else None + 967 + 968 self._match(TokenType.ON) + 969 + 970 kind = self._match_set(self.CREATABLES) and self._prev + 971 + 972 if not kind: + 973 return self._parse_as_command(start) 974 - 975 self._match(TokenType.IS) - 976 - 977 return self.expression( - 978 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists - 979 ) - 980 - 981 def _parse_statement(self) -> t.Optional[exp.Expression]: - 982 if self._curr is None: - 983 return None - 984 - 985 if self._match_set(self.STATEMENT_PARSERS): - 986 return self.STATEMENT_PARSERS[self._prev.token_type](self) - 987 - 988 if self._match_set(Tokenizer.COMMANDS): - 989 return self._parse_command() - 990 - 991 expression = self._parse_expression() - 992 expression = self._parse_set_operations(expression) if expression else self._parse_select() + 975 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): + 976 this = self._parse_user_defined_function(kind=kind.token_type) + 977 elif kind.token_type == TokenType.TABLE: + 978 this = self._parse_table() + 979 elif kind.token_type == TokenType.COLUMN: + 980 this = self._parse_column() + 981 else: + 982 this = self._parse_id_var() + 983 + 984 self._match(TokenType.IS) + 985 + 986 return self.expression( + 987 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists + 988 ) + 989 + 990 def _parse_statement(self) -> t.Optional[exp.Expression]: + 991 if self._curr is None: + 992 return None 993 - 994 self._parse_query_modifiers(expression) - 995 return expression + 994 if self._match_set(self.STATEMENT_PARSERS): + 995 return self.STATEMENT_PARSERS[self._prev.token_type](self) 996 - 997 def _parse_drop(self, default_kind: t.Optional[str] = None) -> t.Optional[exp.Expression]: - 998 start = self._prev - 999 temporary = self._match(TokenType.TEMPORARY) -1000 materialized = self._match(TokenType.MATERIALIZED) -1001 kind = self._match_set(self.CREATABLES) and self._prev.text -1002 if not kind: -1003 if default_kind: -1004 kind = default_kind -1005 else: -1006 return self._parse_as_command(start) -1007 -1008 return self.expression( -1009 exp.Drop, -1010 exists=self._parse_exists(), -1011 this=self._parse_table(schema=True), -1012 kind=kind, -1013 temporary=temporary, -1014 materialized=materialized, -1015 cascade=self._match(TokenType.CASCADE), -1016 ) -1017 -1018 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: -1019 return ( -1020 self._match(TokenType.IF) -1021 and (not not_ or self._match(TokenType.NOT)) -1022 and self._match(TokenType.EXISTS) -1023 ) -1024 -1025 def _parse_create(self) -> t.Optional[exp.Expression]: -1026 start = self._prev -1027 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( -1028 TokenType.OR, TokenType.REPLACE -1029 ) -1030 unique = self._match(TokenType.UNIQUE) -1031 volatile = self._match(TokenType.VOLATILE) -1032 -1033 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): -1034 self._match(TokenType.TABLE) -1035 -1036 properties = None -1037 create_token = self._match_set(self.CREATABLES) and self._prev -1038 -1039 if not create_token: -1040 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE -1041 create_token = self._match_set(self.CREATABLES) and self._prev -1042 -1043 if not properties or not create_token: -1044 return self._parse_as_command(start) -1045 -1046 exists = self._parse_exists(not_=True) -1047 this = None -1048 expression = None -1049 indexes = None -1050 no_schema_binding = None -1051 begin = None -1052 -1053 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): -1054 this = self._parse_user_defined_function(kind=create_token.token_type) -1055 temp_properties = self._parse_properties() -1056 if properties and temp_properties: -1057 properties.expressions.extend(temp_properties.expressions) -1058 elif temp_properties: -1059 properties = temp_properties -1060 -1061 self._match(TokenType.ALIAS) -1062 begin = self._match(TokenType.BEGIN) -1063 return_ = self._match_text_seq("RETURN") -1064 expression = self._parse_statement() -1065 -1066 if return_: -1067 expression = self.expression(exp.Return, this=expression) -1068 elif create_token.token_type == TokenType.INDEX: -1069 this = self._parse_index() -1070 elif create_token.token_type in self.DB_CREATABLES: -1071 table_parts = self._parse_table_parts(schema=True) -1072 -1073 # exp.Properties.Location.POST_NAME -1074 if self._match(TokenType.COMMA): -1075 temp_properties = self._parse_properties(before=True) -1076 if properties and temp_properties: -1077 properties.expressions.extend(temp_properties.expressions) -1078 elif temp_properties: -1079 properties = temp_properties -1080 -1081 this = self._parse_schema(this=table_parts) -1082 -1083 # exp.Properties.Location.POST_SCHEMA and POST_WITH -1084 temp_properties = self._parse_properties() -1085 if properties and temp_properties: -1086 properties.expressions.extend(temp_properties.expressions) -1087 elif temp_properties: -1088 properties = temp_properties + 997 if self._match_set(Tokenizer.COMMANDS): + 998 return self._parse_command() + 999 +1000 expression = self._parse_expression() +1001 expression = self._parse_set_operations(expression) if expression else self._parse_select() +1002 +1003 self._parse_query_modifiers(expression) +1004 return expression +1005 +1006 def _parse_drop(self, default_kind: t.Optional[str] = None) -> t.Optional[exp.Expression]: +1007 start = self._prev +1008 temporary = self._match(TokenType.TEMPORARY) +1009 materialized = self._match(TokenType.MATERIALIZED) +1010 kind = self._match_set(self.CREATABLES) and self._prev.text +1011 if not kind: +1012 if default_kind: +1013 kind = default_kind +1014 else: +1015 return self._parse_as_command(start) +1016 +1017 return self.expression( +1018 exp.Drop, +1019 exists=self._parse_exists(), +1020 this=self._parse_table(schema=True), +1021 kind=kind, +1022 temporary=temporary, +1023 materialized=materialized, +1024 cascade=self._match(TokenType.CASCADE), +1025 ) +1026 +1027 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: +1028 return ( +1029 self._match(TokenType.IF) +1030 and (not not_ or self._match(TokenType.NOT)) +1031 and self._match(TokenType.EXISTS) +1032 ) +1033 +1034 def _parse_create(self) -> t.Optional[exp.Expression]: +1035 start = self._prev +1036 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( +1037 TokenType.OR, TokenType.REPLACE +1038 ) +1039 unique = self._match(TokenType.UNIQUE) +1040 volatile = self._match(TokenType.VOLATILE) +1041 +1042 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): +1043 self._match(TokenType.TABLE) +1044 +1045 properties = None +1046 create_token = self._match_set(self.CREATABLES) and self._prev +1047 +1048 if not create_token: +1049 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE +1050 create_token = self._match_set(self.CREATABLES) and self._prev +1051 +1052 if not properties or not create_token: +1053 return self._parse_as_command(start) +1054 +1055 exists = self._parse_exists(not_=True) +1056 this = None +1057 expression = None +1058 indexes = None +1059 no_schema_binding = None +1060 begin = None +1061 +1062 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): +1063 this = self._parse_user_defined_function(kind=create_token.token_type) +1064 temp_properties = self._parse_properties() +1065 if properties and temp_properties: +1066 properties.expressions.extend(temp_properties.expressions) +1067 elif temp_properties: +1068 properties = temp_properties +1069 +1070 self._match(TokenType.ALIAS) +1071 begin = self._match(TokenType.BEGIN) +1072 return_ = self._match_text_seq("RETURN") +1073 expression = self._parse_statement() +1074 +1075 if return_: +1076 expression = self.expression(exp.Return, this=expression) +1077 elif create_token.token_type == TokenType.INDEX: +1078 this = self._parse_index() +1079 elif create_token.token_type in self.DB_CREATABLES: +1080 table_parts = self._parse_table_parts(schema=True) +1081 +1082 # exp.Properties.Location.POST_NAME +1083 if self._match(TokenType.COMMA): +1084 temp_properties = self._parse_properties(before=True) +1085 if properties and temp_properties: +1086 properties.expressions.extend(temp_properties.expressions) +1087 elif temp_properties: +1088 properties = temp_properties 1089 -1090 self._match(TokenType.ALIAS) +1090 this = self._parse_schema(this=table_parts) 1091 -1092 # exp.Properties.Location.POST_ALIAS -1093 if not ( -1094 self._match(TokenType.SELECT, advance=False) -1095 or self._match(TokenType.WITH, advance=False) -1096 or self._match(TokenType.L_PAREN, advance=False) -1097 ): -1098 temp_properties = self._parse_properties() -1099 if properties and temp_properties: -1100 properties.expressions.extend(temp_properties.expressions) -1101 elif temp_properties: -1102 properties = temp_properties -1103 -1104 expression = self._parse_ddl_select() -1105 -1106 if create_token.token_type == TokenType.TABLE: -1107 # exp.Properties.Location.POST_EXPRESSION -1108 temp_properties = self._parse_properties() -1109 if properties and temp_properties: -1110 properties.expressions.extend(temp_properties.expressions) -1111 elif temp_properties: -1112 properties = temp_properties -1113 -1114 indexes = [] -1115 while True: -1116 index = self._parse_create_table_index() -1117 -1118 # exp.Properties.Location.POST_INDEX -1119 if self._match(TokenType.PARTITION_BY, advance=False): -1120 temp_properties = self._parse_properties() -1121 if properties and temp_properties: -1122 properties.expressions.extend(temp_properties.expressions) -1123 elif temp_properties: -1124 properties = temp_properties -1125 -1126 if not index: -1127 break -1128 else: -1129 indexes.append(index) -1130 elif create_token.token_type == TokenType.VIEW: -1131 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): -1132 no_schema_binding = True -1133 -1134 return self.expression( -1135 exp.Create, -1136 this=this, -1137 kind=create_token.text, -1138 replace=replace, -1139 unique=unique, -1140 volatile=volatile, -1141 expression=expression, -1142 exists=exists, -1143 properties=properties, -1144 indexes=indexes, -1145 no_schema_binding=no_schema_binding, -1146 begin=begin, -1147 ) -1148 -1149 def _parse_property_before(self) -> t.Optional[exp.Expression]: -1150 self._match(TokenType.COMMA) -1151 -1152 # parsers look to _prev for no/dual/default, so need to consume first -1153 self._match_text_seq("NO") -1154 self._match_text_seq("DUAL") -1155 self._match_text_seq("DEFAULT") -1156 -1157 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): -1158 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) -1159 -1160 return None -1161 -1162 def _parse_property(self) -> t.Optional[exp.Expression]: -1163 if self._match_texts(self.PROPERTY_PARSERS): -1164 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) +1092 # exp.Properties.Location.POST_SCHEMA and POST_WITH +1093 temp_properties = self._parse_properties() +1094 if properties and temp_properties: +1095 properties.expressions.extend(temp_properties.expressions) +1096 elif temp_properties: +1097 properties = temp_properties +1098 +1099 self._match(TokenType.ALIAS) +1100 +1101 # exp.Properties.Location.POST_ALIAS +1102 if not ( +1103 self._match(TokenType.SELECT, advance=False) +1104 or self._match(TokenType.WITH, advance=False) +1105 or self._match(TokenType.L_PAREN, advance=False) +1106 ): +1107 temp_properties = self._parse_properties() +1108 if properties and temp_properties: +1109 properties.expressions.extend(temp_properties.expressions) +1110 elif temp_properties: +1111 properties = temp_properties +1112 +1113 expression = self._parse_ddl_select() +1114 +1115 if create_token.token_type == TokenType.TABLE: +1116 # exp.Properties.Location.POST_EXPRESSION +1117 temp_properties = self._parse_properties() +1118 if properties and temp_properties: +1119 properties.expressions.extend(temp_properties.expressions) +1120 elif temp_properties: +1121 properties = temp_properties +1122 +1123 indexes = [] +1124 while True: +1125 index = self._parse_create_table_index() +1126 +1127 # exp.Properties.Location.POST_INDEX +1128 if self._match(TokenType.PARTITION_BY, advance=False): +1129 temp_properties = self._parse_properties() +1130 if properties and temp_properties: +1131 properties.expressions.extend(temp_properties.expressions) +1132 elif temp_properties: +1133 properties = temp_properties +1134 +1135 if not index: +1136 break +1137 else: +1138 indexes.append(index) +1139 elif create_token.token_type == TokenType.VIEW: +1140 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): +1141 no_schema_binding = True +1142 +1143 return self.expression( +1144 exp.Create, +1145 this=this, +1146 kind=create_token.text, +1147 replace=replace, +1148 unique=unique, +1149 volatile=volatile, +1150 expression=expression, +1151 exists=exists, +1152 properties=properties, +1153 indexes=indexes, +1154 no_schema_binding=no_schema_binding, +1155 begin=begin, +1156 ) +1157 +1158 def _parse_property_before(self) -> t.Optional[exp.Expression]: +1159 self._match(TokenType.COMMA) +1160 +1161 # parsers look to _prev for no/dual/default, so need to consume first +1162 self._match_text_seq("NO") +1163 self._match_text_seq("DUAL") +1164 self._match_text_seq("DEFAULT") 1165 -1166 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): -1167 return self._parse_character_set(default=True) +1166 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): +1167 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) 1168 -1169 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): -1170 return self._parse_sortkey(compound=True) -1171 -1172 if self._match_text_seq("SQL", "SECURITY"): -1173 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) +1169 return None +1170 +1171 def _parse_property(self) -> t.Optional[exp.Expression]: +1172 if self._match_texts(self.PROPERTY_PARSERS): +1173 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) 1174 -1175 assignment = self._match_pair( -1176 TokenType.VAR, TokenType.EQ, advance=False -1177 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) -1178 -1179 if assignment: -1180 key = self._parse_var_or_string() -1181 self._match(TokenType.EQ) -1182 return self.expression(exp.Property, this=key, value=self._parse_column()) +1175 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): +1176 return self._parse_character_set(default=True) +1177 +1178 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): +1179 return self._parse_sortkey(compound=True) +1180 +1181 if self._match_text_seq("SQL", "SECURITY"): +1182 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) 1183 -1184 return None -1185 -1186 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: -1187 self._match(TokenType.EQ) -1188 self._match(TokenType.ALIAS) -1189 return self.expression( -1190 exp_class, -1191 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), -1192 ) -1193 -1194 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: -1195 properties = [] -1196 -1197 while True: -1198 if before: -1199 identified_property = self._parse_property_before() -1200 else: -1201 identified_property = self._parse_property() +1184 assignment = self._match_pair( +1185 TokenType.VAR, TokenType.EQ, advance=False +1186 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) +1187 +1188 if assignment: +1189 key = self._parse_var_or_string() +1190 self._match(TokenType.EQ) +1191 return self.expression(exp.Property, this=key, value=self._parse_column()) +1192 +1193 return None +1194 +1195 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: +1196 self._match(TokenType.EQ) +1197 self._match(TokenType.ALIAS) +1198 return self.expression( +1199 exp_class, +1200 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), +1201 ) 1202 -1203 if not identified_property: -1204 break -1205 for p in ensure_collection(identified_property): -1206 properties.append(p) -1207 -1208 if properties: -1209 return self.expression(exp.Properties, expressions=properties) -1210 -1211 return None -1212 -1213 def _parse_fallback(self, no=False) -> exp.Expression: -1214 self._match_text_seq("FALLBACK") -1215 return self.expression( -1216 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") -1217 ) -1218 -1219 def _parse_with_property( -1220 self, -1221 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: -1222 self._match(TokenType.WITH) -1223 if self._match(TokenType.L_PAREN, advance=False): -1224 return self._parse_wrapped_csv(self._parse_property) -1225 -1226 if self._match_text_seq("JOURNAL"): -1227 return self._parse_withjournaltable() -1228 -1229 if self._match_text_seq("DATA"): -1230 return self._parse_withdata(no=False) -1231 elif self._match_text_seq("NO", "DATA"): -1232 return self._parse_withdata(no=True) -1233 -1234 if not self._next: -1235 return None -1236 -1237 return self._parse_withisolatedloading() -1238 -1239 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html -1240 def _parse_definer(self) -> t.Optional[exp.Expression]: -1241 self._match(TokenType.EQ) +1203 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: +1204 properties = [] +1205 +1206 while True: +1207 if before: +1208 identified_property = self._parse_property_before() +1209 else: +1210 identified_property = self._parse_property() +1211 +1212 if not identified_property: +1213 break +1214 for p in ensure_collection(identified_property): +1215 properties.append(p) +1216 +1217 if properties: +1218 return self.expression(exp.Properties, expressions=properties) +1219 +1220 return None +1221 +1222 def _parse_fallback(self, no=False) -> exp.Expression: +1223 self._match_text_seq("FALLBACK") +1224 return self.expression( +1225 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") +1226 ) +1227 +1228 def _parse_with_property( +1229 self, +1230 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: +1231 self._match(TokenType.WITH) +1232 if self._match(TokenType.L_PAREN, advance=False): +1233 return self._parse_wrapped_csv(self._parse_property) +1234 +1235 if self._match_text_seq("JOURNAL"): +1236 return self._parse_withjournaltable() +1237 +1238 if self._match_text_seq("DATA"): +1239 return self._parse_withdata(no=False) +1240 elif self._match_text_seq("NO", "DATA"): +1241 return self._parse_withdata(no=True) 1242 -1243 user = self._parse_id_var() -1244 self._match(TokenType.PARAMETER) -1245 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) -1246 -1247 if not user or not host: -1248 return None -1249 -1250 return exp.DefinerProperty(this=f"{user}@{host}") +1243 if not self._next: +1244 return None +1245 +1246 return self._parse_withisolatedloading() +1247 +1248 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html +1249 def _parse_definer(self) -> t.Optional[exp.Expression]: +1250 self._match(TokenType.EQ) 1251 -1252 def _parse_withjournaltable(self) -> exp.Expression: -1253 self._match(TokenType.TABLE) -1254 self._match(TokenType.EQ) -1255 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) -1256 -1257 def _parse_log(self, no=False) -> exp.Expression: -1258 self._match_text_seq("LOG") -1259 return self.expression(exp.LogProperty, no=no) +1252 user = self._parse_id_var() +1253 self._match(TokenType.PARAMETER) +1254 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) +1255 +1256 if not user or not host: +1257 return None +1258 +1259 return exp.DefinerProperty(this=f"{user}@{host}") 1260 -1261 def _parse_journal(self, no=False, dual=False) -> exp.Expression: -1262 before = self._match_text_seq("BEFORE") -1263 self._match_text_seq("JOURNAL") -1264 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) +1261 def _parse_withjournaltable(self) -> exp.Expression: +1262 self._match(TokenType.TABLE) +1263 self._match(TokenType.EQ) +1264 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) 1265 -1266 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: -1267 self._match_text_seq("NOT") -1268 self._match_text_seq("LOCAL") -1269 self._match_text_seq("AFTER", "JOURNAL") -1270 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) -1271 -1272 def _parse_checksum(self) -> exp.Expression: -1273 self._match_text_seq("CHECKSUM") -1274 self._match(TokenType.EQ) -1275 -1276 on = None -1277 if self._match(TokenType.ON): -1278 on = True -1279 elif self._match_text_seq("OFF"): -1280 on = False -1281 default = self._match(TokenType.DEFAULT) -1282 -1283 return self.expression( -1284 exp.ChecksumProperty, -1285 on=on, -1286 default=default, -1287 ) -1288 -1289 def _parse_freespace(self) -> exp.Expression: -1290 self._match_text_seq("FREESPACE") -1291 self._match(TokenType.EQ) +1266 def _parse_log(self, no=False) -> exp.Expression: +1267 self._match_text_seq("LOG") +1268 return self.expression(exp.LogProperty, no=no) +1269 +1270 def _parse_journal(self, no=False, dual=False) -> exp.Expression: +1271 before = self._match_text_seq("BEFORE") +1272 self._match_text_seq("JOURNAL") +1273 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) +1274 +1275 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: +1276 self._match_text_seq("NOT") +1277 self._match_text_seq("LOCAL") +1278 self._match_text_seq("AFTER", "JOURNAL") +1279 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) +1280 +1281 def _parse_checksum(self) -> exp.Expression: +1282 self._match_text_seq("CHECKSUM") +1283 self._match(TokenType.EQ) +1284 +1285 on = None +1286 if self._match(TokenType.ON): +1287 on = True +1288 elif self._match_text_seq("OFF"): +1289 on = False +1290 default = self._match(TokenType.DEFAULT) +1291 1292 return self.expression( -1293 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) -1294 ) -1295 -1296 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: -1297 self._match_text_seq("MERGEBLOCKRATIO") -1298 if self._match(TokenType.EQ): -1299 return self.expression( -1300 exp.MergeBlockRatioProperty, -1301 this=self._parse_number(), -1302 percent=self._match(TokenType.PERCENT), -1303 ) -1304 else: -1305 return self.expression( -1306 exp.MergeBlockRatioProperty, -1307 no=no, -1308 default=default, -1309 ) -1310 -1311 def _parse_datablocksize(self, default=None) -> exp.Expression: -1312 if default: -1313 self._match_text_seq("DATABLOCKSIZE") -1314 return self.expression(exp.DataBlocksizeProperty, default=True) -1315 elif self._match_texts(("MIN", "MINIMUM")): -1316 self._match_text_seq("DATABLOCKSIZE") -1317 return self.expression(exp.DataBlocksizeProperty, min=True) -1318 elif self._match_texts(("MAX", "MAXIMUM")): -1319 self._match_text_seq("DATABLOCKSIZE") -1320 return self.expression(exp.DataBlocksizeProperty, min=False) -1321 -1322 self._match_text_seq("DATABLOCKSIZE") -1323 self._match(TokenType.EQ) -1324 size = self._parse_number() -1325 units = None -1326 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): -1327 units = self._prev.text -1328 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) -1329 -1330 def _parse_blockcompression(self) -> exp.Expression: -1331 self._match_text_seq("BLOCKCOMPRESSION") +1293 exp.ChecksumProperty, +1294 on=on, +1295 default=default, +1296 ) +1297 +1298 def _parse_freespace(self) -> exp.Expression: +1299 self._match_text_seq("FREESPACE") +1300 self._match(TokenType.EQ) +1301 return self.expression( +1302 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) +1303 ) +1304 +1305 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: +1306 self._match_text_seq("MERGEBLOCKRATIO") +1307 if self._match(TokenType.EQ): +1308 return self.expression( +1309 exp.MergeBlockRatioProperty, +1310 this=self._parse_number(), +1311 percent=self._match(TokenType.PERCENT), +1312 ) +1313 else: +1314 return self.expression( +1315 exp.MergeBlockRatioProperty, +1316 no=no, +1317 default=default, +1318 ) +1319 +1320 def _parse_datablocksize(self, default=None) -> exp.Expression: +1321 if default: +1322 self._match_text_seq("DATABLOCKSIZE") +1323 return self.expression(exp.DataBlocksizeProperty, default=True) +1324 elif self._match_texts(("MIN", "MINIMUM")): +1325 self._match_text_seq("DATABLOCKSIZE") +1326 return self.expression(exp.DataBlocksizeProperty, min=True) +1327 elif self._match_texts(("MAX", "MAXIMUM")): +1328 self._match_text_seq("DATABLOCKSIZE") +1329 return self.expression(exp.DataBlocksizeProperty, min=False) +1330 +1331 self._match_text_seq("DATABLOCKSIZE") 1332 self._match(TokenType.EQ) -1333 always = self._match_text_seq("ALWAYS") -1334 manual = self._match_text_seq("MANUAL") -1335 never = self._match_text_seq("NEVER") -1336 default = self._match_text_seq("DEFAULT") -1337 autotemp = None -1338 if self._match_text_seq("AUTOTEMP"): -1339 autotemp = self._parse_schema() -1340 -1341 return self.expression( -1342 exp.BlockCompressionProperty, -1343 always=always, -1344 manual=manual, -1345 never=never, -1346 default=default, -1347 autotemp=autotemp, -1348 ) +1333 size = self._parse_number() +1334 units = None +1335 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): +1336 units = self._prev.text +1337 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) +1338 +1339 def _parse_blockcompression(self) -> exp.Expression: +1340 self._match_text_seq("BLOCKCOMPRESSION") +1341 self._match(TokenType.EQ) +1342 always = self._match_text_seq("ALWAYS") +1343 manual = self._match_text_seq("MANUAL") +1344 never = self._match_text_seq("NEVER") +1345 default = self._match_text_seq("DEFAULT") +1346 autotemp = None +1347 if self._match_text_seq("AUTOTEMP"): +1348 autotemp = self._parse_schema() 1349 -1350 def _parse_withisolatedloading(self) -> exp.Expression: -1351 no = self._match_text_seq("NO") -1352 concurrent = self._match_text_seq("CONCURRENT") -1353 self._match_text_seq("ISOLATED", "LOADING") -1354 for_all = self._match_text_seq("FOR", "ALL") -1355 for_insert = self._match_text_seq("FOR", "INSERT") -1356 for_none = self._match_text_seq("FOR", "NONE") -1357 return self.expression( -1358 exp.IsolatedLoadingProperty, -1359 no=no, -1360 concurrent=concurrent, -1361 for_all=for_all, -1362 for_insert=for_insert, -1363 for_none=for_none, -1364 ) -1365 -1366 def _parse_locking(self) -> exp.Expression: -1367 if self._match(TokenType.TABLE): -1368 kind = "TABLE" -1369 elif self._match(TokenType.VIEW): -1370 kind = "VIEW" -1371 elif self._match(TokenType.ROW): -1372 kind = "ROW" -1373 elif self._match_text_seq("DATABASE"): -1374 kind = "DATABASE" -1375 else: -1376 kind = None -1377 -1378 if kind in ("DATABASE", "TABLE", "VIEW"): -1379 this = self._parse_table_parts() -1380 else: -1381 this = None -1382 -1383 if self._match(TokenType.FOR): -1384 for_or_in = "FOR" -1385 elif self._match(TokenType.IN): -1386 for_or_in = "IN" -1387 else: -1388 for_or_in = None -1389 -1390 if self._match_text_seq("ACCESS"): -1391 lock_type = "ACCESS" -1392 elif self._match_texts(("EXCL", "EXCLUSIVE")): -1393 lock_type = "EXCLUSIVE" -1394 elif self._match_text_seq("SHARE"): -1395 lock_type = "SHARE" -1396 elif self._match_text_seq("READ"): -1397 lock_type = "READ" -1398 elif self._match_text_seq("WRITE"): -1399 lock_type = "WRITE" -1400 elif self._match_text_seq("CHECKSUM"): -1401 lock_type = "CHECKSUM" -1402 else: -1403 lock_type = None -1404 -1405 override = self._match_text_seq("OVERRIDE") -1406 -1407 return self.expression( -1408 exp.LockingProperty, -1409 this=this, -1410 kind=kind, -1411 for_or_in=for_or_in, -1412 lock_type=lock_type, -1413 override=override, -1414 ) +1350 return self.expression( +1351 exp.BlockCompressionProperty, +1352 always=always, +1353 manual=manual, +1354 never=never, +1355 default=default, +1356 autotemp=autotemp, +1357 ) +1358 +1359 def _parse_withisolatedloading(self) -> exp.Expression: +1360 no = self._match_text_seq("NO") +1361 concurrent = self._match_text_seq("CONCURRENT") +1362 self._match_text_seq("ISOLATED", "LOADING") +1363 for_all = self._match_text_seq("FOR", "ALL") +1364 for_insert = self._match_text_seq("FOR", "INSERT") +1365 for_none = self._match_text_seq("FOR", "NONE") +1366 return self.expression( +1367 exp.IsolatedLoadingProperty, +1368 no=no, +1369 concurrent=concurrent, +1370 for_all=for_all, +1371 for_insert=for_insert, +1372 for_none=for_none, +1373 ) +1374 +1375 def _parse_locking(self) -> exp.Expression: +1376 if self._match(TokenType.TABLE): +1377 kind = "TABLE" +1378 elif self._match(TokenType.VIEW): +1379 kind = "VIEW" +1380 elif self._match(TokenType.ROW): +1381 kind = "ROW" +1382 elif self._match_text_seq("DATABASE"): +1383 kind = "DATABASE" +1384 else: +1385 kind = None +1386 +1387 if kind in ("DATABASE", "TABLE", "VIEW"): +1388 this = self._parse_table_parts() +1389 else: +1390 this = None +1391 +1392 if self._match(TokenType.FOR): +1393 for_or_in = "FOR" +1394 elif self._match(TokenType.IN): +1395 for_or_in = "IN" +1396 else: +1397 for_or_in = None +1398 +1399 if self._match_text_seq("ACCESS"): +1400 lock_type = "ACCESS" +1401 elif self._match_texts(("EXCL", "EXCLUSIVE")): +1402 lock_type = "EXCLUSIVE" +1403 elif self._match_text_seq("SHARE"): +1404 lock_type = "SHARE" +1405 elif self._match_text_seq("READ"): +1406 lock_type = "READ" +1407 elif self._match_text_seq("WRITE"): +1408 lock_type = "WRITE" +1409 elif self._match_text_seq("CHECKSUM"): +1410 lock_type = "CHECKSUM" +1411 else: +1412 lock_type = None +1413 +1414 override = self._match_text_seq("OVERRIDE") 1415 -1416 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: -1417 if self._match(TokenType.PARTITION_BY): -1418 return self._parse_csv(self._parse_conjunction) -1419 return [] -1420 -1421 def _parse_partitioned_by(self) -> exp.Expression: -1422 self._match(TokenType.EQ) -1423 return self.expression( -1424 exp.PartitionedByProperty, -1425 this=self._parse_schema() or self._parse_bracket(self._parse_field()), -1426 ) -1427 -1428 def _parse_withdata(self, no=False) -> exp.Expression: -1429 if self._match_text_seq("AND", "STATISTICS"): -1430 statistics = True -1431 elif self._match_text_seq("AND", "NO", "STATISTICS"): -1432 statistics = False -1433 else: -1434 statistics = None -1435 -1436 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) -1437 -1438 def _parse_noprimaryindex(self) -> exp.Expression: -1439 self._match_text_seq("PRIMARY", "INDEX") -1440 return exp.NoPrimaryIndexProperty() -1441 -1442 def _parse_oncommit(self) -> exp.Expression: -1443 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") -1444 return exp.OnCommitProperty() -1445 -1446 def _parse_distkey(self) -> exp.Expression: -1447 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) -1448 -1449 def _parse_create_like(self) -> t.Optional[exp.Expression]: -1450 table = self._parse_table(schema=True) -1451 options = [] -1452 while self._match_texts(("INCLUDING", "EXCLUDING")): -1453 this = self._prev.text.upper() -1454 id_var = self._parse_id_var() -1455 -1456 if not id_var: -1457 return None -1458 -1459 options.append( -1460 self.expression( -1461 exp.Property, -1462 this=this, -1463 value=exp.Var(this=id_var.this.upper()), -1464 ) -1465 ) -1466 return self.expression(exp.LikeProperty, this=table, expressions=options) +1416 return self.expression( +1417 exp.LockingProperty, +1418 this=this, +1419 kind=kind, +1420 for_or_in=for_or_in, +1421 lock_type=lock_type, +1422 override=override, +1423 ) +1424 +1425 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: +1426 if self._match(TokenType.PARTITION_BY): +1427 return self._parse_csv(self._parse_conjunction) +1428 return [] +1429 +1430 def _parse_partitioned_by(self) -> exp.Expression: +1431 self._match(TokenType.EQ) +1432 return self.expression( +1433 exp.PartitionedByProperty, +1434 this=self._parse_schema() or self._parse_bracket(self._parse_field()), +1435 ) +1436 +1437 def _parse_withdata(self, no=False) -> exp.Expression: +1438 if self._match_text_seq("AND", "STATISTICS"): +1439 statistics = True +1440 elif self._match_text_seq("AND", "NO", "STATISTICS"): +1441 statistics = False +1442 else: +1443 statistics = None +1444 +1445 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) +1446 +1447 def _parse_noprimaryindex(self) -> exp.Expression: +1448 self._match_text_seq("PRIMARY", "INDEX") +1449 return exp.NoPrimaryIndexProperty() +1450 +1451 def _parse_oncommit(self) -> exp.Expression: +1452 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") +1453 return exp.OnCommitProperty() +1454 +1455 def _parse_distkey(self) -> exp.Expression: +1456 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) +1457 +1458 def _parse_create_like(self) -> t.Optional[exp.Expression]: +1459 table = self._parse_table(schema=True) +1460 options = [] +1461 while self._match_texts(("INCLUDING", "EXCLUDING")): +1462 this = self._prev.text.upper() +1463 id_var = self._parse_id_var() +1464 +1465 if not id_var: +1466 return None 1467 -1468 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: -1469 return self.expression( -1470 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound -1471 ) -1472 -1473 def _parse_character_set(self, default: bool = False) -> exp.Expression: -1474 self._match(TokenType.EQ) -1475 return self.expression( -1476 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default -1477 ) -1478 -1479 def _parse_returns(self) -> exp.Expression: -1480 value: t.Optional[exp.Expression] -1481 is_table = self._match(TokenType.TABLE) -1482 -1483 if is_table: -1484 if self._match(TokenType.LT): -1485 value = self.expression( -1486 exp.Schema, -1487 this="TABLE", -1488 expressions=self._parse_csv(self._parse_struct_kwargs), -1489 ) -1490 if not self._match(TokenType.GT): -1491 self.raise_error("Expecting >") -1492 else: -1493 value = self._parse_schema(exp.Var(this="TABLE")) -1494 else: -1495 value = self._parse_types() -1496 -1497 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) -1498 -1499 def _parse_temporary(self, global_=False) -> exp.Expression: -1500 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" -1501 return self.expression(exp.TemporaryProperty, global_=global_) -1502 -1503 def _parse_describe(self) -> exp.Expression: -1504 kind = self._match_set(self.CREATABLES) and self._prev.text -1505 this = self._parse_table() -1506 -1507 return self.expression(exp.Describe, this=this, kind=kind) -1508 -1509 def _parse_insert(self) -> exp.Expression: -1510 overwrite = self._match(TokenType.OVERWRITE) -1511 local = self._match(TokenType.LOCAL) -1512 -1513 this: t.Optional[exp.Expression] -1514 -1515 alternative = None -1516 if self._match_text_seq("DIRECTORY"): -1517 this = self.expression( -1518 exp.Directory, -1519 this=self._parse_var_or_string(), -1520 local=local, -1521 row_format=self._parse_row_format(match_row=True), -1522 ) -1523 else: -1524 if self._match(TokenType.OR): -1525 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text -1526 -1527 self._match(TokenType.INTO) -1528 self._match(TokenType.TABLE) -1529 this = self._parse_table(schema=True) -1530 -1531 return self.expression( -1532 exp.Insert, -1533 this=this, -1534 exists=self._parse_exists(), -1535 partition=self._parse_partition(), -1536 expression=self._parse_ddl_select(), -1537 overwrite=overwrite, -1538 alternative=alternative, -1539 ) -1540 -1541 def _parse_row(self) -> t.Optional[exp.Expression]: -1542 if not self._match(TokenType.FORMAT): -1543 return None -1544 return self._parse_row_format() -1545 -1546 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: -1547 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): -1548 return None -1549 -1550 if self._match_text_seq("SERDE"): -1551 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) +1468 options.append( +1469 self.expression( +1470 exp.Property, +1471 this=this, +1472 value=exp.Var(this=id_var.this.upper()), +1473 ) +1474 ) +1475 return self.expression(exp.LikeProperty, this=table, expressions=options) +1476 +1477 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: +1478 return self.expression( +1479 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound +1480 ) +1481 +1482 def _parse_character_set(self, default: bool = False) -> exp.Expression: +1483 self._match(TokenType.EQ) +1484 return self.expression( +1485 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default +1486 ) +1487 +1488 def _parse_returns(self) -> exp.Expression: +1489 value: t.Optional[exp.Expression] +1490 is_table = self._match(TokenType.TABLE) +1491 +1492 if is_table: +1493 if self._match(TokenType.LT): +1494 value = self.expression( +1495 exp.Schema, +1496 this="TABLE", +1497 expressions=self._parse_csv(self._parse_struct_kwargs), +1498 ) +1499 if not self._match(TokenType.GT): +1500 self.raise_error("Expecting >") +1501 else: +1502 value = self._parse_schema(exp.Var(this="TABLE")) +1503 else: +1504 value = self._parse_types() +1505 +1506 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) +1507 +1508 def _parse_temporary(self, global_=False) -> exp.Expression: +1509 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" +1510 return self.expression(exp.TemporaryProperty, global_=global_) +1511 +1512 def _parse_describe(self) -> exp.Expression: +1513 kind = self._match_set(self.CREATABLES) and self._prev.text +1514 this = self._parse_table() +1515 +1516 return self.expression(exp.Describe, this=this, kind=kind) +1517 +1518 def _parse_insert(self) -> exp.Expression: +1519 overwrite = self._match(TokenType.OVERWRITE) +1520 local = self._match(TokenType.LOCAL) +1521 alternative = None +1522 +1523 if self._match_text_seq("DIRECTORY"): +1524 this: t.Optional[exp.Expression] = self.expression( +1525 exp.Directory, +1526 this=self._parse_var_or_string(), +1527 local=local, +1528 row_format=self._parse_row_format(match_row=True), +1529 ) +1530 else: +1531 if self._match(TokenType.OR): +1532 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text +1533 +1534 self._match(TokenType.INTO) +1535 self._match(TokenType.TABLE) +1536 this = self._parse_table(schema=True) +1537 +1538 return self.expression( +1539 exp.Insert, +1540 this=this, +1541 exists=self._parse_exists(), +1542 partition=self._parse_partition(), +1543 expression=self._parse_ddl_select(), +1544 returning=self._parse_returning(), +1545 overwrite=overwrite, +1546 alternative=alternative, +1547 ) +1548 +1549 def _parse_returning(self) -> t.Optional[exp.Expression]: +1550 if not self._match(TokenType.RETURNING): +1551 return None 1552 -1553 self._match_text_seq("DELIMITED") +1553 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) 1554 -1555 kwargs = {} -1556 -1557 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): -1558 kwargs["fields"] = self._parse_string() -1559 if self._match_text_seq("ESCAPED", "BY"): -1560 kwargs["escaped"] = self._parse_string() -1561 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): -1562 kwargs["collection_items"] = self._parse_string() -1563 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): -1564 kwargs["map_keys"] = self._parse_string() -1565 if self._match_text_seq("LINES", "TERMINATED", "BY"): -1566 kwargs["lines"] = self._parse_string() -1567 if self._match_text_seq("NULL", "DEFINED", "AS"): -1568 kwargs["null"] = self._parse_string() -1569 -1570 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore -1571 -1572 def _parse_load_data(self) -> exp.Expression: -1573 local = self._match(TokenType.LOCAL) -1574 self._match_text_seq("INPATH") -1575 inpath = self._parse_string() -1576 overwrite = self._match(TokenType.OVERWRITE) -1577 self._match_pair(TokenType.INTO, TokenType.TABLE) -1578 -1579 return self.expression( -1580 exp.LoadData, -1581 this=self._parse_table(schema=True), -1582 local=local, -1583 overwrite=overwrite, -1584 inpath=inpath, -1585 partition=self._parse_partition(), -1586 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), -1587 serde=self._match_text_seq("SERDE") and self._parse_string(), -1588 ) -1589 -1590 def _parse_delete(self) -> exp.Expression: -1591 self._match(TokenType.FROM) +1555 def _parse_row(self) -> t.Optional[exp.Expression]: +1556 if not self._match(TokenType.FORMAT): +1557 return None +1558 return self._parse_row_format() +1559 +1560 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: +1561 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): +1562 return None +1563 +1564 if self._match_text_seq("SERDE"): +1565 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) +1566 +1567 self._match_text_seq("DELIMITED") +1568 +1569 kwargs = {} +1570 +1571 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): +1572 kwargs["fields"] = self._parse_string() +1573 if self._match_text_seq("ESCAPED", "BY"): +1574 kwargs["escaped"] = self._parse_string() +1575 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): +1576 kwargs["collection_items"] = self._parse_string() +1577 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): +1578 kwargs["map_keys"] = self._parse_string() +1579 if self._match_text_seq("LINES", "TERMINATED", "BY"): +1580 kwargs["lines"] = self._parse_string() +1581 if self._match_text_seq("NULL", "DEFINED", "AS"): +1582 kwargs["null"] = self._parse_string() +1583 +1584 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore +1585 +1586 def _parse_load_data(self) -> exp.Expression: +1587 local = self._match(TokenType.LOCAL) +1588 self._match_text_seq("INPATH") +1589 inpath = self._parse_string() +1590 overwrite = self._match(TokenType.OVERWRITE) +1591 self._match_pair(TokenType.INTO, TokenType.TABLE) 1592 1593 return self.expression( -1594 exp.Delete, +1594 exp.LoadData, 1595 this=self._parse_table(schema=True), -1596 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), -1597 where=self._parse_where(), -1598 ) -1599 -1600 def _parse_update(self) -> exp.Expression: -1601 return self.expression( -1602 exp.Update, -1603 **{ # type: ignore -1604 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), -1605 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), -1606 "from": self._parse_from(), -1607 "where": self._parse_where(), -1608 }, -1609 ) -1610 -1611 def _parse_uncache(self) -> exp.Expression: -1612 if not self._match(TokenType.TABLE): -1613 self.raise_error("Expecting TABLE after UNCACHE") +1596 local=local, +1597 overwrite=overwrite, +1598 inpath=inpath, +1599 partition=self._parse_partition(), +1600 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), +1601 serde=self._match_text_seq("SERDE") and self._parse_string(), +1602 ) +1603 +1604 def _parse_delete(self) -> exp.Expression: +1605 self._match(TokenType.FROM) +1606 +1607 return self.expression( +1608 exp.Delete, +1609 this=self._parse_table(schema=True), +1610 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), +1611 where=self._parse_where(), +1612 returning=self._parse_returning(), +1613 ) 1614 -1615 return self.expression( -1616 exp.Uncache, -1617 exists=self._parse_exists(), -1618 this=self._parse_table(schema=True), -1619 ) -1620 -1621 def _parse_cache(self) -> exp.Expression: -1622 lazy = self._match(TokenType.LAZY) -1623 self._match(TokenType.TABLE) -1624 table = self._parse_table(schema=True) -1625 options = [] +1615 def _parse_update(self) -> exp.Expression: +1616 return self.expression( +1617 exp.Update, +1618 **{ # type: ignore +1619 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), +1620 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), +1621 "from": self._parse_from(), +1622 "where": self._parse_where(), +1623 "returning": self._parse_returning(), +1624 }, +1625 ) 1626 -1627 if self._match(TokenType.OPTIONS): -1628 self._match_l_paren() -1629 k = self._parse_string() -1630 self._match(TokenType.EQ) -1631 v = self._parse_string() -1632 options = [k, v] -1633 self._match_r_paren() -1634 -1635 self._match(TokenType.ALIAS) -1636 return self.expression( -1637 exp.Cache, -1638 this=table, -1639 lazy=lazy, -1640 options=options, -1641 expression=self._parse_select(nested=True), -1642 ) -1643 -1644 def _parse_partition(self) -> t.Optional[exp.Expression]: -1645 if not self._match(TokenType.PARTITION): -1646 return None -1647 -1648 return self.expression( -1649 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) -1650 ) -1651 -1652 def _parse_value(self) -> exp.Expression: -1653 if self._match(TokenType.L_PAREN): -1654 expressions = self._parse_csv(self._parse_conjunction) -1655 self._match_r_paren() -1656 return self.expression(exp.Tuple, expressions=expressions) -1657 -1658 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. -1659 # Source: https://prestodb.io/docs/current/sql/values.html -1660 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) -1661 -1662 def _parse_select( -1663 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True -1664 ) -> t.Optional[exp.Expression]: -1665 cte = self._parse_with() -1666 if cte: -1667 this = self._parse_statement() -1668 -1669 if not this: -1670 self.raise_error("Failed to parse any statement following CTE") -1671 return cte -1672 -1673 if "with" in this.arg_types: -1674 this.set("with", cte) -1675 else: -1676 self.raise_error(f"{this.key} does not support CTE") -1677 this = cte -1678 elif self._match(TokenType.SELECT): -1679 comments = self._prev_comments -1680 -1681 hint = self._parse_hint() -1682 all_ = self._match(TokenType.ALL) -1683 distinct = self._match(TokenType.DISTINCT) +1627 def _parse_uncache(self) -> exp.Expression: +1628 if not self._match(TokenType.TABLE): +1629 self.raise_error("Expecting TABLE after UNCACHE") +1630 +1631 return self.expression( +1632 exp.Uncache, +1633 exists=self._parse_exists(), +1634 this=self._parse_table(schema=True), +1635 ) +1636 +1637 def _parse_cache(self) -> exp.Expression: +1638 lazy = self._match(TokenType.LAZY) +1639 self._match(TokenType.TABLE) +1640 table = self._parse_table(schema=True) +1641 options = [] +1642 +1643 if self._match(TokenType.OPTIONS): +1644 self._match_l_paren() +1645 k = self._parse_string() +1646 self._match(TokenType.EQ) +1647 v = self._parse_string() +1648 options = [k, v] +1649 self._match_r_paren() +1650 +1651 self._match(TokenType.ALIAS) +1652 return self.expression( +1653 exp.Cache, +1654 this=table, +1655 lazy=lazy, +1656 options=options, +1657 expression=self._parse_select(nested=True), +1658 ) +1659 +1660 def _parse_partition(self) -> t.Optional[exp.Expression]: +1661 if not self._match(TokenType.PARTITION): +1662 return None +1663 +1664 return self.expression( +1665 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) +1666 ) +1667 +1668 def _parse_value(self) -> exp.Expression: +1669 if self._match(TokenType.L_PAREN): +1670 expressions = self._parse_csv(self._parse_conjunction) +1671 self._match_r_paren() +1672 return self.expression(exp.Tuple, expressions=expressions) +1673 +1674 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. +1675 # Source: https://prestodb.io/docs/current/sql/values.html +1676 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) +1677 +1678 def _parse_select( +1679 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True +1680 ) -> t.Optional[exp.Expression]: +1681 cte = self._parse_with() +1682 if cte: +1683 this = self._parse_statement() 1684 -1685 if distinct: -1686 distinct = self.expression( -1687 exp.Distinct, -1688 on=self._parse_value() if self._match(TokenType.ON) else None, -1689 ) -1690 -1691 if all_ and distinct: -1692 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") -1693 -1694 limit = self._parse_limit(top=True) -1695 expressions = self._parse_csv(self._parse_expression) +1685 if not this: +1686 self.raise_error("Failed to parse any statement following CTE") +1687 return cte +1688 +1689 if "with" in this.arg_types: +1690 this.set("with", cte) +1691 else: +1692 self.raise_error(f"{this.key} does not support CTE") +1693 this = cte +1694 elif self._match(TokenType.SELECT): +1695 comments = self._prev_comments 1696 -1697 this = self.expression( -1698 exp.Select, -1699 hint=hint, -1700 distinct=distinct, -1701 expressions=expressions, -1702 limit=limit, -1703 ) -1704 this.comments = comments -1705 -1706 into = self._parse_into() -1707 if into: -1708 this.set("into", into) +1697 hint = self._parse_hint() +1698 all_ = self._match(TokenType.ALL) +1699 distinct = self._match(TokenType.DISTINCT) +1700 +1701 if distinct: +1702 distinct = self.expression( +1703 exp.Distinct, +1704 on=self._parse_value() if self._match(TokenType.ON) else None, +1705 ) +1706 +1707 if all_ and distinct: +1708 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") 1709 -1710 from_ = self._parse_from() -1711 if from_: -1712 this.set("from", from_) -1713 -1714 self._parse_query_modifiers(this) -1715 elif (table or nested) and self._match(TokenType.L_PAREN): -1716 this = self._parse_table() if table else self._parse_select(nested=True) -1717 self._parse_query_modifiers(this) -1718 this = self._parse_set_operations(this) -1719 self._match_r_paren() -1720 -1721 # early return so that subquery unions aren't parsed again -1722 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 -1723 # Union ALL should be a property of the top select node, not the subquery -1724 return self._parse_subquery(this, parse_alias=parse_subquery_alias) -1725 elif self._match(TokenType.VALUES): -1726 this = self.expression( -1727 exp.Values, -1728 expressions=self._parse_csv(self._parse_value), -1729 alias=self._parse_table_alias(), -1730 ) -1731 else: -1732 this = None -1733 -1734 return self._parse_set_operations(this) -1735 -1736 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: -1737 if not skip_with_token and not self._match(TokenType.WITH): -1738 return None -1739 -1740 recursive = self._match(TokenType.RECURSIVE) -1741 -1742 expressions = [] -1743 while True: -1744 expressions.append(self._parse_cte()) -1745 -1746 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): -1747 break -1748 else: -1749 self._match(TokenType.WITH) -1750 -1751 return self.expression(exp.With, expressions=expressions, recursive=recursive) -1752 -1753 def _parse_cte(self) -> exp.Expression: -1754 alias = self._parse_table_alias() -1755 if not alias or not alias.this: -1756 self.raise_error("Expected CTE to have alias") +1710 limit = self._parse_limit(top=True) +1711 expressions = self._parse_csv(self._parse_expression) +1712 +1713 this = self.expression( +1714 exp.Select, +1715 hint=hint, +1716 distinct=distinct, +1717 expressions=expressions, +1718 limit=limit, +1719 ) +1720 this.comments = comments +1721 +1722 into = self._parse_into() +1723 if into: +1724 this.set("into", into) +1725 +1726 from_ = self._parse_from() +1727 if from_: +1728 this.set("from", from_) +1729 +1730 self._parse_query_modifiers(this) +1731 elif (table or nested) and self._match(TokenType.L_PAREN): +1732 this = self._parse_table() if table else self._parse_select(nested=True) +1733 self._parse_query_modifiers(this) +1734 this = self._parse_set_operations(this) +1735 self._match_r_paren() +1736 +1737 # early return so that subquery unions aren't parsed again +1738 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 +1739 # Union ALL should be a property of the top select node, not the subquery +1740 return self._parse_subquery(this, parse_alias=parse_subquery_alias) +1741 elif self._match(TokenType.VALUES): +1742 this = self.expression( +1743 exp.Values, +1744 expressions=self._parse_csv(self._parse_value), +1745 alias=self._parse_table_alias(), +1746 ) +1747 else: +1748 this = None +1749 +1750 return self._parse_set_operations(this) +1751 +1752 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: +1753 if not skip_with_token and not self._match(TokenType.WITH): +1754 return None +1755 +1756 recursive = self._match(TokenType.RECURSIVE) 1757 -1758 self._match(TokenType.ALIAS) -1759 -1760 return self.expression( -1761 exp.CTE, -1762 this=self._parse_wrapped(self._parse_statement), -1763 alias=alias, -1764 ) -1765 -1766 def _parse_table_alias( -1767 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None -1768 ) -> t.Optional[exp.Expression]: -1769 any_token = self._match(TokenType.ALIAS) -1770 alias = self._parse_id_var( -1771 any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS -1772 ) -1773 index = self._index -1774 -1775 if self._match(TokenType.L_PAREN): -1776 columns = self._parse_csv(self._parse_function_parameter) -1777 self._match_r_paren() if columns else self._retreat(index) -1778 else: -1779 columns = None -1780 -1781 if not alias and not columns: -1782 return None -1783 -1784 return self.expression(exp.TableAlias, this=alias, columns=columns) -1785 -1786 def _parse_subquery( -1787 self, this: t.Optional[exp.Expression], parse_alias: bool = True -1788 ) -> exp.Expression: -1789 return self.expression( -1790 exp.Subquery, -1791 this=this, -1792 pivots=self._parse_pivots(), -1793 alias=self._parse_table_alias() if parse_alias else None, -1794 ) -1795 -1796 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: -1797 if not isinstance(this, self.MODIFIABLES): -1798 return +1758 expressions = [] +1759 while True: +1760 expressions.append(self._parse_cte()) +1761 +1762 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): +1763 break +1764 else: +1765 self._match(TokenType.WITH) +1766 +1767 return self.expression(exp.With, expressions=expressions, recursive=recursive) +1768 +1769 def _parse_cte(self) -> exp.Expression: +1770 alias = self._parse_table_alias() +1771 if not alias or not alias.this: +1772 self.raise_error("Expected CTE to have alias") +1773 +1774 self._match(TokenType.ALIAS) +1775 +1776 return self.expression( +1777 exp.CTE, +1778 this=self._parse_wrapped(self._parse_statement), +1779 alias=alias, +1780 ) +1781 +1782 def _parse_table_alias( +1783 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None +1784 ) -> t.Optional[exp.Expression]: +1785 any_token = self._match(TokenType.ALIAS) +1786 alias = self._parse_id_var( +1787 any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS +1788 ) +1789 index = self._index +1790 +1791 if self._match(TokenType.L_PAREN): +1792 columns = self._parse_csv(self._parse_function_parameter) +1793 self._match_r_paren() if columns else self._retreat(index) +1794 else: +1795 columns = None +1796 +1797 if not alias and not columns: +1798 return None 1799 -1800 table = isinstance(this, exp.Table) +1800 return self.expression(exp.TableAlias, this=alias, columns=columns) 1801 -1802 while True: -1803 lateral = self._parse_lateral() -1804 join = self._parse_join() -1805 comma = None if table else self._match(TokenType.COMMA) -1806 if lateral: -1807 this.append("laterals", lateral) -1808 if join: -1809 this.append("joins", join) -1810 if comma: -1811 this.args["from"].append("expressions", self._parse_table()) -1812 if not (lateral or join or comma): -1813 break -1814 -1815 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): -1816 expression = parser(self) +1802 def _parse_subquery( +1803 self, this: t.Optional[exp.Expression], parse_alias: bool = True +1804 ) -> exp.Expression: +1805 return self.expression( +1806 exp.Subquery, +1807 this=this, +1808 pivots=self._parse_pivots(), +1809 alias=self._parse_table_alias() if parse_alias else None, +1810 ) +1811 +1812 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: +1813 if not isinstance(this, self.MODIFIABLES): +1814 return +1815 +1816 table = isinstance(this, exp.Table) 1817 -1818 if expression: -1819 this.set(key, expression) -1820 -1821 def _parse_hint(self) -> t.Optional[exp.Expression]: -1822 if self._match(TokenType.HINT): -1823 hints = self._parse_csv(self._parse_function) -1824 if not self._match_pair(TokenType.STAR, TokenType.SLASH): -1825 self.raise_error("Expected */ after HINT") -1826 return self.expression(exp.Hint, expressions=hints) -1827 -1828 return None -1829 -1830 def _parse_into(self) -> t.Optional[exp.Expression]: -1831 if not self._match(TokenType.INTO): -1832 return None +1818 while True: +1819 lateral = self._parse_lateral() +1820 join = self._parse_join() +1821 comma = None if table else self._match(TokenType.COMMA) +1822 if lateral: +1823 this.append("laterals", lateral) +1824 if join: +1825 this.append("joins", join) +1826 if comma: +1827 this.args["from"].append("expressions", self._parse_table()) +1828 if not (lateral or join or comma): +1829 break +1830 +1831 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): +1832 expression = parser(self) 1833 -1834 temp = self._match(TokenType.TEMPORARY) -1835 unlogged = self._match(TokenType.UNLOGGED) -1836 self._match(TokenType.TABLE) -1837 -1838 return self.expression( -1839 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged -1840 ) -1841 -1842 def _parse_from(self) -> t.Optional[exp.Expression]: -1843 if not self._match(TokenType.FROM): -1844 return None +1834 if expression: +1835 this.set(key, expression) +1836 +1837 def _parse_hint(self) -> t.Optional[exp.Expression]: +1838 if self._match(TokenType.HINT): +1839 hints = self._parse_csv(self._parse_function) +1840 if not self._match_pair(TokenType.STAR, TokenType.SLASH): +1841 self.raise_error("Expected */ after HINT") +1842 return self.expression(exp.Hint, expressions=hints) +1843 +1844 return None 1845 -1846 return self.expression( -1847 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) -1848 ) +1846 def _parse_into(self) -> t.Optional[exp.Expression]: +1847 if not self._match(TokenType.INTO): +1848 return None 1849 -1850 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: -1851 if not self._match(TokenType.MATCH_RECOGNIZE): -1852 return None -1853 self._match_l_paren() -1854 -1855 partition = self._parse_partition_by() -1856 order = self._parse_order() -1857 measures = ( -1858 self._parse_alias(self._parse_conjunction()) -1859 if self._match_text_seq("MEASURES") -1860 else None -1861 ) -1862 -1863 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): -1864 rows = exp.Var(this="ONE ROW PER MATCH") -1865 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): -1866 text = "ALL ROWS PER MATCH" -1867 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): -1868 text += f" SHOW EMPTY MATCHES" -1869 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): -1870 text += f" OMIT EMPTY MATCHES" -1871 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): -1872 text += f" WITH UNMATCHED ROWS" -1873 rows = exp.Var(this=text) -1874 else: -1875 rows = None -1876 -1877 if self._match_text_seq("AFTER", "MATCH", "SKIP"): -1878 text = "AFTER MATCH SKIP" -1879 if self._match_text_seq("PAST", "LAST", "ROW"): -1880 text += f" PAST LAST ROW" -1881 elif self._match_text_seq("TO", "NEXT", "ROW"): -1882 text += f" TO NEXT ROW" -1883 elif self._match_text_seq("TO", "FIRST"): -1884 text += f" TO FIRST {self._advance_any().text}" # type: ignore -1885 elif self._match_text_seq("TO", "LAST"): -1886 text += f" TO LAST {self._advance_any().text}" # type: ignore -1887 after = exp.Var(this=text) -1888 else: -1889 after = None -1890 -1891 if self._match_text_seq("PATTERN"): -1892 self._match_l_paren() -1893 -1894 if not self._curr: -1895 self.raise_error("Expecting )", self._curr) -1896 -1897 paren = 1 -1898 start = self._curr -1899 -1900 while self._curr and paren > 0: -1901 if self._curr.token_type == TokenType.L_PAREN: -1902 paren += 1 -1903 if self._curr.token_type == TokenType.R_PAREN: -1904 paren -= 1 -1905 end = self._prev -1906 self._advance() -1907 if paren > 0: -1908 self.raise_error("Expecting )", self._curr) -1909 pattern = exp.Var(this=self._find_sql(start, end)) -1910 else: -1911 pattern = None +1850 temp = self._match(TokenType.TEMPORARY) +1851 unlogged = self._match(TokenType.UNLOGGED) +1852 self._match(TokenType.TABLE) +1853 +1854 return self.expression( +1855 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged +1856 ) +1857 +1858 def _parse_from(self) -> t.Optional[exp.Expression]: +1859 if not self._match(TokenType.FROM): +1860 return None +1861 +1862 return self.expression( +1863 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) +1864 ) +1865 +1866 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: +1867 if not self._match(TokenType.MATCH_RECOGNIZE): +1868 return None +1869 self._match_l_paren() +1870 +1871 partition = self._parse_partition_by() +1872 order = self._parse_order() +1873 measures = ( +1874 self._parse_alias(self._parse_conjunction()) +1875 if self._match_text_seq("MEASURES") +1876 else None +1877 ) +1878 +1879 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): +1880 rows = exp.Var(this="ONE ROW PER MATCH") +1881 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): +1882 text = "ALL ROWS PER MATCH" +1883 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): +1884 text += f" SHOW EMPTY MATCHES" +1885 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): +1886 text += f" OMIT EMPTY MATCHES" +1887 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): +1888 text += f" WITH UNMATCHED ROWS" +1889 rows = exp.Var(this=text) +1890 else: +1891 rows = None +1892 +1893 if self._match_text_seq("AFTER", "MATCH", "SKIP"): +1894 text = "AFTER MATCH SKIP" +1895 if self._match_text_seq("PAST", "LAST", "ROW"): +1896 text += f" PAST LAST ROW" +1897 elif self._match_text_seq("TO", "NEXT", "ROW"): +1898 text += f" TO NEXT ROW" +1899 elif self._match_text_seq("TO", "FIRST"): +1900 text += f" TO FIRST {self._advance_any().text}" # type: ignore +1901 elif self._match_text_seq("TO", "LAST"): +1902 text += f" TO LAST {self._advance_any().text}" # type: ignore +1903 after = exp.Var(this=text) +1904 else: +1905 after = None +1906 +1907 if self._match_text_seq("PATTERN"): +1908 self._match_l_paren() +1909 +1910 if not self._curr: +1911 self.raise_error("Expecting )", self._curr) 1912 -1913 define = ( -1914 self._parse_alias(self._parse_conjunction()) if self._match_text_seq("DEFINE") else None -1915 ) -1916 self._match_r_paren() -1917 -1918 return self.expression( -1919 exp.MatchRecognize, -1920 partition_by=partition, -1921 order=order, -1922 measures=measures, -1923 rows=rows, -1924 after=after, -1925 pattern=pattern, -1926 define=define, -1927 ) +1913 paren = 1 +1914 start = self._curr +1915 +1916 while self._curr and paren > 0: +1917 if self._curr.token_type == TokenType.L_PAREN: +1918 paren += 1 +1919 if self._curr.token_type == TokenType.R_PAREN: +1920 paren -= 1 +1921 end = self._prev +1922 self._advance() +1923 if paren > 0: +1924 self.raise_error("Expecting )", self._curr) +1925 pattern = exp.Var(this=self._find_sql(start, end)) +1926 else: +1927 pattern = None 1928 -1929 def _parse_lateral(self) -> t.Optional[exp.Expression]: -1930 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) -1931 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) -1932 -1933 if outer_apply or cross_apply: -1934 this = self._parse_select(table=True) -1935 view = None -1936 outer = not cross_apply -1937 elif self._match(TokenType.LATERAL): -1938 this = self._parse_select(table=True) -1939 view = self._match(TokenType.VIEW) -1940 outer = self._match(TokenType.OUTER) -1941 else: -1942 return None -1943 -1944 if not this: -1945 this = self._parse_function() or self._parse_id_var(any_token=False) -1946 while self._match(TokenType.DOT): -1947 this = exp.Dot( -1948 this=this, -1949 expression=self._parse_function() or self._parse_id_var(any_token=False), -1950 ) -1951 -1952 table_alias: t.Optional[exp.Expression] -1953 -1954 if view: -1955 table = self._parse_id_var(any_token=False) -1956 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] -1957 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) -1958 else: -1959 table_alias = self._parse_table_alias() -1960 -1961 expression = self.expression( -1962 exp.Lateral, -1963 this=this, -1964 view=view, -1965 outer=outer, -1966 alias=table_alias, -1967 ) -1968 -1969 if outer_apply or cross_apply: -1970 return self.expression(exp.Join, this=expression, side=None if cross_apply else "LEFT") -1971 -1972 return expression -1973 -1974 def _parse_join_side_and_kind( -1975 self, -1976 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: -1977 return ( -1978 self._match(TokenType.NATURAL) and self._prev, -1979 self._match_set(self.JOIN_SIDES) and self._prev, -1980 self._match_set(self.JOIN_KINDS) and self._prev, -1981 ) -1982 -1983 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: -1984 natural, side, kind = self._parse_join_side_and_kind() -1985 -1986 if not skip_join_token and not self._match(TokenType.JOIN): -1987 return None -1988 -1989 kwargs: t.Dict[ -1990 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] -1991 ] = {"this": self._parse_table()} -1992 -1993 if natural: -1994 kwargs["natural"] = True -1995 if side: -1996 kwargs["side"] = side.text -1997 if kind: -1998 kwargs["kind"] = kind.text -1999 -2000 if self._match(TokenType.ON): -2001 kwargs["on"] = self._parse_conjunction() -2002 elif self._match(TokenType.USING): -2003 kwargs["using"] = self._parse_wrapped_id_vars() +1929 define = ( +1930 self._parse_alias(self._parse_conjunction()) if self._match_text_seq("DEFINE") else None +1931 ) +1932 self._match_r_paren() +1933 +1934 return self.expression( +1935 exp.MatchRecognize, +1936 partition_by=partition, +1937 order=order, +1938 measures=measures, +1939 rows=rows, +1940 after=after, +1941 pattern=pattern, +1942 define=define, +1943 ) +1944 +1945 def _parse_lateral(self) -> t.Optional[exp.Expression]: +1946 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) +1947 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) +1948 +1949 if outer_apply or cross_apply: +1950 this = self._parse_select(table=True) +1951 view = None +1952 outer = not cross_apply +1953 elif self._match(TokenType.LATERAL): +1954 this = self._parse_select(table=True) +1955 view = self._match(TokenType.VIEW) +1956 outer = self._match(TokenType.OUTER) +1957 else: +1958 return None +1959 +1960 if not this: +1961 this = self._parse_function() or self._parse_id_var(any_token=False) +1962 while self._match(TokenType.DOT): +1963 this = exp.Dot( +1964 this=this, +1965 expression=self._parse_function() or self._parse_id_var(any_token=False), +1966 ) +1967 +1968 table_alias: t.Optional[exp.Expression] +1969 +1970 if view: +1971 table = self._parse_id_var(any_token=False) +1972 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] +1973 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) +1974 else: +1975 table_alias = self._parse_table_alias() +1976 +1977 expression = self.expression( +1978 exp.Lateral, +1979 this=this, +1980 view=view, +1981 outer=outer, +1982 alias=table_alias, +1983 ) +1984 +1985 if outer_apply or cross_apply: +1986 return self.expression(exp.Join, this=expression, side=None if cross_apply else "LEFT") +1987 +1988 return expression +1989 +1990 def _parse_join_side_and_kind( +1991 self, +1992 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: +1993 return ( +1994 self._match(TokenType.NATURAL) and self._prev, +1995 self._match_set(self.JOIN_SIDES) and self._prev, +1996 self._match_set(self.JOIN_KINDS) and self._prev, +1997 ) +1998 +1999 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: +2000 natural, side, kind = self._parse_join_side_and_kind() +2001 +2002 if not skip_join_token and not self._match(TokenType.JOIN): +2003 return None 2004 -2005 return self.expression(exp.Join, **kwargs) # type: ignore -2006 -2007 def _parse_index(self) -> exp.Expression: -2008 index = self._parse_id_var() -2009 self._match(TokenType.ON) -2010 self._match(TokenType.TABLE) # hive -2011 -2012 return self.expression( -2013 exp.Index, -2014 this=index, -2015 table=self.expression(exp.Table, this=self._parse_id_var()), -2016 columns=self._parse_expression(), -2017 ) -2018 -2019 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: -2020 unique = self._match(TokenType.UNIQUE) -2021 primary = self._match_text_seq("PRIMARY") -2022 amp = self._match_text_seq("AMP") -2023 if not self._match(TokenType.INDEX): -2024 return None -2025 index = self._parse_id_var() -2026 columns = None -2027 if self._match(TokenType.L_PAREN, advance=False): -2028 columns = self._parse_wrapped_csv(self._parse_column) -2029 return self.expression( -2030 exp.Index, -2031 this=index, -2032 columns=columns, -2033 unique=unique, -2034 primary=primary, -2035 amp=amp, -2036 ) -2037 -2038 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: -2039 catalog = None -2040 db = None -2041 table = (not schema and self._parse_function()) or self._parse_id_var(any_token=False) -2042 -2043 while self._match(TokenType.DOT): -2044 if catalog: -2045 # This allows nesting the table in arbitrarily many dot expressions if needed -2046 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) -2047 else: -2048 catalog = db -2049 db = table -2050 table = self._parse_id_var() -2051 -2052 if not table: -2053 self.raise_error(f"Expected table name but got {self._curr}") -2054 -2055 return self.expression( -2056 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() -2057 ) +2005 kwargs: t.Dict[ +2006 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] +2007 ] = {"this": self._parse_table()} +2008 +2009 if natural: +2010 kwargs["natural"] = True +2011 if side: +2012 kwargs["side"] = side.text +2013 if kind: +2014 kwargs["kind"] = kind.text +2015 +2016 if self._match(TokenType.ON): +2017 kwargs["on"] = self._parse_conjunction() +2018 elif self._match(TokenType.USING): +2019 kwargs["using"] = self._parse_wrapped_id_vars() +2020 +2021 return self.expression(exp.Join, **kwargs) # type: ignore +2022 +2023 def _parse_index(self) -> exp.Expression: +2024 index = self._parse_id_var() +2025 self._match(TokenType.ON) +2026 self._match(TokenType.TABLE) # hive +2027 +2028 return self.expression( +2029 exp.Index, +2030 this=index, +2031 table=self.expression(exp.Table, this=self._parse_id_var()), +2032 columns=self._parse_expression(), +2033 ) +2034 +2035 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: +2036 unique = self._match(TokenType.UNIQUE) +2037 primary = self._match_text_seq("PRIMARY") +2038 amp = self._match_text_seq("AMP") +2039 if not self._match(TokenType.INDEX): +2040 return None +2041 index = self._parse_id_var() +2042 columns = None +2043 if self._match(TokenType.L_PAREN, advance=False): +2044 columns = self._parse_wrapped_csv(self._parse_column) +2045 return self.expression( +2046 exp.Index, +2047 this=index, +2048 columns=columns, +2049 unique=unique, +2050 primary=primary, +2051 amp=amp, +2052 ) +2053 +2054 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: +2055 catalog = None +2056 db = None +2057 table = (not schema and self._parse_function()) or self._parse_id_var(any_token=False) 2058 -2059 def _parse_table( -2060 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None -2061 ) -> t.Optional[exp.Expression]: -2062 lateral = self._parse_lateral() -2063 -2064 if lateral: -2065 return lateral -2066 -2067 unnest = self._parse_unnest() -2068 -2069 if unnest: -2070 return unnest -2071 -2072 values = self._parse_derived_table_values() -2073 -2074 if values: -2075 return values -2076 -2077 subquery = self._parse_select(table=True) -2078 -2079 if subquery: -2080 return subquery -2081 -2082 this = self._parse_table_parts(schema=schema) -2083 -2084 if schema: -2085 return self._parse_schema(this=this) -2086 -2087 if self.alias_post_tablesample: -2088 table_sample = self._parse_table_sample() +2059 while self._match(TokenType.DOT): +2060 if catalog: +2061 # This allows nesting the table in arbitrarily many dot expressions if needed +2062 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) +2063 else: +2064 catalog = db +2065 db = table +2066 table = self._parse_id_var() +2067 +2068 if not table: +2069 self.raise_error(f"Expected table name but got {self._curr}") +2070 +2071 return self.expression( +2072 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() +2073 ) +2074 +2075 def _parse_table( +2076 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None +2077 ) -> t.Optional[exp.Expression]: +2078 lateral = self._parse_lateral() +2079 +2080 if lateral: +2081 return lateral +2082 +2083 unnest = self._parse_unnest() +2084 +2085 if unnest: +2086 return unnest +2087 +2088 values = self._parse_derived_table_values() 2089 -2090 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) -2091 -2092 if alias: -2093 this.set("alias", alias) +2090 if values: +2091 return values +2092 +2093 subquery = self._parse_select(table=True) 2094 -2095 if not this.args.get("pivots"): -2096 this.set("pivots", self._parse_pivots()) +2095 if subquery: +2096 return subquery 2097 -2098 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): -2099 this.set( -2100 "hints", -2101 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), -2102 ) -2103 self._match_r_paren() -2104 -2105 if not self.alias_post_tablesample: -2106 table_sample = self._parse_table_sample() +2098 this = self._parse_table_parts(schema=schema) +2099 +2100 if schema: +2101 return self._parse_schema(this=this) +2102 +2103 if self.alias_post_tablesample: +2104 table_sample = self._parse_table_sample() +2105 +2106 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) 2107 -2108 if table_sample: -2109 table_sample.set("this", this) -2110 this = table_sample -2111 -2112 return this +2108 if alias: +2109 this.set("alias", alias) +2110 +2111 if not this.args.get("pivots"): +2112 this.set("pivots", self._parse_pivots()) 2113 -2114 def _parse_unnest(self) -> t.Optional[exp.Expression]: -2115 if not self._match(TokenType.UNNEST): -2116 return None -2117 -2118 expressions = self._parse_wrapped_csv(self._parse_column) -2119 ordinality = bool(self._match(TokenType.WITH) and self._match(TokenType.ORDINALITY)) -2120 alias = self._parse_table_alias() -2121 -2122 if alias and self.unnest_column_only: -2123 if alias.args.get("columns"): -2124 self.raise_error("Unexpected extra column alias in unnest.") -2125 alias.set("columns", [alias.this]) -2126 alias.set("this", None) +2114 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): +2115 this.set( +2116 "hints", +2117 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), +2118 ) +2119 self._match_r_paren() +2120 +2121 if not self.alias_post_tablesample: +2122 table_sample = self._parse_table_sample() +2123 +2124 if table_sample: +2125 table_sample.set("this", this) +2126 this = table_sample 2127 -2128 offset = None -2129 if self._match_pair(TokenType.WITH, TokenType.OFFSET): -2130 self._match(TokenType.ALIAS) -2131 offset = self._parse_conjunction() -2132 -2133 return self.expression( -2134 exp.Unnest, -2135 expressions=expressions, -2136 ordinality=ordinality, -2137 alias=alias, -2138 offset=offset, -2139 ) -2140 -2141 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: -2142 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) -2143 if not is_derived and not self._match(TokenType.VALUES): -2144 return None -2145 -2146 expressions = self._parse_csv(self._parse_value) -2147 -2148 if is_derived: -2149 self._match_r_paren() -2150 -2151 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) -2152 -2153 def _parse_table_sample(self) -> t.Optional[exp.Expression]: -2154 if not self._match(TokenType.TABLE_SAMPLE): -2155 return None +2128 return this +2129 +2130 def _parse_unnest(self) -> t.Optional[exp.Expression]: +2131 if not self._match(TokenType.UNNEST): +2132 return None +2133 +2134 expressions = self._parse_wrapped_csv(self._parse_column) +2135 ordinality = bool(self._match(TokenType.WITH) and self._match(TokenType.ORDINALITY)) +2136 alias = self._parse_table_alias() +2137 +2138 if alias and self.unnest_column_only: +2139 if alias.args.get("columns"): +2140 self.raise_error("Unexpected extra column alias in unnest.") +2141 alias.set("columns", [alias.this]) +2142 alias.set("this", None) +2143 +2144 offset = None +2145 if self._match_pair(TokenType.WITH, TokenType.OFFSET): +2146 self._match(TokenType.ALIAS) +2147 offset = self._parse_conjunction() +2148 +2149 return self.expression( +2150 exp.Unnest, +2151 expressions=expressions, +2152 ordinality=ordinality, +2153 alias=alias, +2154 offset=offset, +2155 ) 2156 -2157 method = self._parse_var() -2158 bucket_numerator = None -2159 bucket_denominator = None -2160 bucket_field = None -2161 percent = None -2162 rows = None -2163 size = None -2164 seed = None -2165 -2166 self._match_l_paren() -2167 -2168 if self._match(TokenType.BUCKET): -2169 bucket_numerator = self._parse_number() -2170 self._match(TokenType.OUT_OF) -2171 bucket_denominator = bucket_denominator = self._parse_number() -2172 self._match(TokenType.ON) -2173 bucket_field = self._parse_field() -2174 else: -2175 num = self._parse_number() -2176 -2177 if self._match(TokenType.PERCENT): -2178 percent = num -2179 elif self._match(TokenType.ROWS): -2180 rows = num -2181 else: -2182 size = num -2183 -2184 self._match_r_paren() +2157 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: +2158 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) +2159 if not is_derived and not self._match(TokenType.VALUES): +2160 return None +2161 +2162 expressions = self._parse_csv(self._parse_value) +2163 +2164 if is_derived: +2165 self._match_r_paren() +2166 +2167 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) +2168 +2169 def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: +2170 if not self._match(TokenType.TABLE_SAMPLE) and not ( +2171 as_modifier and self._match_text_seq("USING", "SAMPLE") +2172 ): +2173 return None +2174 +2175 bucket_numerator = None +2176 bucket_denominator = None +2177 bucket_field = None +2178 percent = None +2179 rows = None +2180 size = None +2181 seed = None +2182 +2183 kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" +2184 method = self._parse_var(tokens=(TokenType.ROW,)) 2185 -2186 if self._match(TokenType.SEED): -2187 seed = self._parse_wrapped(self._parse_number) -2188 -2189 return self.expression( -2190 exp.TableSample, -2191 method=method, -2192 bucket_numerator=bucket_numerator, -2193 bucket_denominator=bucket_denominator, -2194 bucket_field=bucket_field, -2195 percent=percent, -2196 rows=rows, -2197 size=size, -2198 seed=seed, -2199 ) -2200 -2201 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: -2202 return list(iter(self._parse_pivot, None)) -2203 -2204 def _parse_pivot(self) -> t.Optional[exp.Expression]: -2205 index = self._index -2206 -2207 if self._match(TokenType.PIVOT): -2208 unpivot = False -2209 elif self._match(TokenType.UNPIVOT): -2210 unpivot = True -2211 else: -2212 return None -2213 -2214 expressions = [] -2215 field = None -2216 -2217 if not self._match(TokenType.L_PAREN): -2218 self._retreat(index) -2219 return None -2220 -2221 if unpivot: -2222 expressions = self._parse_csv(self._parse_column) -2223 else: -2224 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) -2225 -2226 if not self._match(TokenType.FOR): -2227 self.raise_error("Expecting FOR") -2228 -2229 value = self._parse_column() +2186 self._match(TokenType.L_PAREN) +2187 +2188 num = self._parse_number() +2189 +2190 if self._match(TokenType.BUCKET): +2191 bucket_numerator = self._parse_number() +2192 self._match(TokenType.OUT_OF) +2193 bucket_denominator = bucket_denominator = self._parse_number() +2194 self._match(TokenType.ON) +2195 bucket_field = self._parse_field() +2196 elif self._match_set((TokenType.PERCENT, TokenType.MOD)): +2197 percent = num +2198 elif self._match(TokenType.ROWS): +2199 rows = num +2200 else: +2201 size = num +2202 +2203 self._match(TokenType.R_PAREN) +2204 +2205 if self._match(TokenType.L_PAREN): +2206 method = self._parse_var() +2207 seed = self._match(TokenType.COMMA) and self._parse_number() +2208 self._match_r_paren() +2209 elif self._match_texts(("SEED", "REPEATABLE")): +2210 seed = self._parse_wrapped(self._parse_number) +2211 +2212 return self.expression( +2213 exp.TableSample, +2214 method=method, +2215 bucket_numerator=bucket_numerator, +2216 bucket_denominator=bucket_denominator, +2217 bucket_field=bucket_field, +2218 percent=percent, +2219 rows=rows, +2220 size=size, +2221 seed=seed, +2222 kind=kind, +2223 ) +2224 +2225 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: +2226 return list(iter(self._parse_pivot, None)) +2227 +2228 def _parse_pivot(self) -> t.Optional[exp.Expression]: +2229 index = self._index 2230 -2231 if not self._match(TokenType.IN): -2232 self.raise_error("Expecting IN") -2233 -2234 field = self._parse_in(value) -2235 -2236 self._match_r_paren() +2231 if self._match(TokenType.PIVOT): +2232 unpivot = False +2233 elif self._match(TokenType.UNPIVOT): +2234 unpivot = True +2235 else: +2236 return None 2237 -2238 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) -2239 -2240 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): -2241 pivot.set("alias", self._parse_table_alias()) -2242 -2243 return pivot +2238 expressions = [] +2239 field = None +2240 +2241 if not self._match(TokenType.L_PAREN): +2242 self._retreat(index) +2243 return None 2244 -2245 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: -2246 if not skip_where_token and not self._match(TokenType.WHERE): -2247 return None -2248 -2249 return self.expression( -2250 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() -2251 ) +2245 if unpivot: +2246 expressions = self._parse_csv(self._parse_column) +2247 else: +2248 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) +2249 +2250 if not self._match(TokenType.FOR): +2251 self.raise_error("Expecting FOR") 2252 -2253 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: -2254 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): -2255 return None -2256 -2257 elements = defaultdict(list) -2258 -2259 while True: -2260 expressions = self._parse_csv(self._parse_conjunction) -2261 if expressions: -2262 elements["expressions"].extend(expressions) +2253 value = self._parse_column() +2254 +2255 if not self._match(TokenType.IN): +2256 self.raise_error("Expecting IN") +2257 +2258 field = self._parse_in(value) +2259 +2260 self._match_r_paren() +2261 +2262 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) 2263 -2264 grouping_sets = self._parse_grouping_sets() -2265 if grouping_sets: -2266 elements["grouping_sets"].extend(grouping_sets) -2267 -2268 rollup = None -2269 cube = None -2270 -2271 with_ = self._match(TokenType.WITH) -2272 if self._match(TokenType.ROLLUP): -2273 rollup = with_ or self._parse_wrapped_csv(self._parse_column) -2274 elements["rollup"].extend(ensure_list(rollup)) -2275 -2276 if self._match(TokenType.CUBE): -2277 cube = with_ or self._parse_wrapped_csv(self._parse_column) -2278 elements["cube"].extend(ensure_list(cube)) -2279 -2280 if not (expressions or grouping_sets or rollup or cube): -2281 break +2264 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): +2265 pivot.set("alias", self._parse_table_alias()) +2266 +2267 return pivot +2268 +2269 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: +2270 if not skip_where_token and not self._match(TokenType.WHERE): +2271 return None +2272 +2273 return self.expression( +2274 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() +2275 ) +2276 +2277 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: +2278 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): +2279 return None +2280 +2281 elements = defaultdict(list) 2282 -2283 return self.expression(exp.Group, **elements) # type: ignore -2284 -2285 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -2286 if not self._match(TokenType.GROUPING_SETS): -2287 return None -2288 -2289 return self._parse_wrapped_csv(self._parse_grouping_set) -2290 -2291 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: -2292 if self._match(TokenType.L_PAREN): -2293 grouping_set = self._parse_csv(self._parse_column) -2294 self._match_r_paren() -2295 return self.expression(exp.Tuple, expressions=grouping_set) -2296 -2297 return self._parse_column() -2298 -2299 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: -2300 if not skip_having_token and not self._match(TokenType.HAVING): -2301 return None -2302 return self.expression(exp.Having, this=self._parse_conjunction()) +2283 while True: +2284 expressions = self._parse_csv(self._parse_conjunction) +2285 if expressions: +2286 elements["expressions"].extend(expressions) +2287 +2288 grouping_sets = self._parse_grouping_sets() +2289 if grouping_sets: +2290 elements["grouping_sets"].extend(grouping_sets) +2291 +2292 rollup = None +2293 cube = None +2294 +2295 with_ = self._match(TokenType.WITH) +2296 if self._match(TokenType.ROLLUP): +2297 rollup = with_ or self._parse_wrapped_csv(self._parse_column) +2298 elements["rollup"].extend(ensure_list(rollup)) +2299 +2300 if self._match(TokenType.CUBE): +2301 cube = with_ or self._parse_wrapped_csv(self._parse_column) +2302 elements["cube"].extend(ensure_list(cube)) 2303 -2304 def _parse_qualify(self) -> t.Optional[exp.Expression]: -2305 if not self._match(TokenType.QUALIFY): -2306 return None -2307 return self.expression(exp.Qualify, this=self._parse_conjunction()) +2304 if not (expressions or grouping_sets or rollup or cube): +2305 break +2306 +2307 return self.expression(exp.Group, **elements) # type: ignore 2308 -2309 def _parse_order( -2310 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False -2311 ) -> t.Optional[exp.Expression]: -2312 if not skip_order_token and not self._match(TokenType.ORDER_BY): -2313 return this +2309 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +2310 if not self._match(TokenType.GROUPING_SETS): +2311 return None +2312 +2313 return self._parse_wrapped_csv(self._parse_grouping_set) 2314 -2315 return self.expression( -2316 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) -2317 ) -2318 -2319 def _parse_sort( -2320 self, token_type: TokenType, exp_class: t.Type[exp.Expression] -2321 ) -> t.Optional[exp.Expression]: -2322 if not self._match(token_type): -2323 return None -2324 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) -2325 -2326 def _parse_ordered(self) -> exp.Expression: -2327 this = self._parse_conjunction() -2328 self._match(TokenType.ASC) -2329 is_desc = self._match(TokenType.DESC) -2330 is_nulls_first = self._match(TokenType.NULLS_FIRST) -2331 is_nulls_last = self._match(TokenType.NULLS_LAST) -2332 desc = is_desc or False -2333 asc = not desc -2334 nulls_first = is_nulls_first or False -2335 explicitly_null_ordered = is_nulls_first or is_nulls_last -2336 if ( -2337 not explicitly_null_ordered -2338 and ( -2339 (asc and self.null_ordering == "nulls_are_small") -2340 or (desc and self.null_ordering != "nulls_are_small") -2341 ) -2342 and self.null_ordering != "nulls_are_last" -2343 ): -2344 nulls_first = True -2345 -2346 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) -2347 -2348 def _parse_limit( -2349 self, this: t.Optional[exp.Expression] = None, top: bool = False -2350 ) -> t.Optional[exp.Expression]: -2351 if self._match(TokenType.TOP if top else TokenType.LIMIT): -2352 limit_paren = self._match(TokenType.L_PAREN) -2353 limit_exp = self.expression( -2354 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() -2355 ) -2356 -2357 if limit_paren: -2358 self._match_r_paren() -2359 -2360 return limit_exp -2361 -2362 if self._match(TokenType.FETCH): -2363 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) -2364 direction = self._prev.text if direction else "FIRST" -2365 count = self._parse_number() -2366 self._match_set((TokenType.ROW, TokenType.ROWS)) -2367 self._match(TokenType.ONLY) -2368 return self.expression(exp.Fetch, direction=direction, count=count) +2315 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: +2316 if self._match(TokenType.L_PAREN): +2317 grouping_set = self._parse_csv(self._parse_column) +2318 self._match_r_paren() +2319 return self.expression(exp.Tuple, expressions=grouping_set) +2320 +2321 return self._parse_column() +2322 +2323 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: +2324 if not skip_having_token and not self._match(TokenType.HAVING): +2325 return None +2326 return self.expression(exp.Having, this=self._parse_conjunction()) +2327 +2328 def _parse_qualify(self) -> t.Optional[exp.Expression]: +2329 if not self._match(TokenType.QUALIFY): +2330 return None +2331 return self.expression(exp.Qualify, this=self._parse_conjunction()) +2332 +2333 def _parse_order( +2334 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False +2335 ) -> t.Optional[exp.Expression]: +2336 if not skip_order_token and not self._match(TokenType.ORDER_BY): +2337 return this +2338 +2339 return self.expression( +2340 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) +2341 ) +2342 +2343 def _parse_sort( +2344 self, token_type: TokenType, exp_class: t.Type[exp.Expression] +2345 ) -> t.Optional[exp.Expression]: +2346 if not self._match(token_type): +2347 return None +2348 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) +2349 +2350 def _parse_ordered(self) -> exp.Expression: +2351 this = self._parse_conjunction() +2352 self._match(TokenType.ASC) +2353 is_desc = self._match(TokenType.DESC) +2354 is_nulls_first = self._match(TokenType.NULLS_FIRST) +2355 is_nulls_last = self._match(TokenType.NULLS_LAST) +2356 desc = is_desc or False +2357 asc = not desc +2358 nulls_first = is_nulls_first or False +2359 explicitly_null_ordered = is_nulls_first or is_nulls_last +2360 if ( +2361 not explicitly_null_ordered +2362 and ( +2363 (asc and self.null_ordering == "nulls_are_small") +2364 or (desc and self.null_ordering != "nulls_are_small") +2365 ) +2366 and self.null_ordering != "nulls_are_last" +2367 ): +2368 nulls_first = True 2369 -2370 return this +2370 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) 2371 -2372 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: -2373 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): -2374 return this -2375 -2376 count = self._parse_number() -2377 self._match_set((TokenType.ROW, TokenType.ROWS)) -2378 return self.expression(exp.Offset, this=this, expression=count) -2379 -2380 def _parse_lock(self) -> t.Optional[exp.Expression]: -2381 if self._match_text_seq("FOR", "UPDATE"): -2382 return self.expression(exp.Lock, update=True) -2383 if self._match_text_seq("FOR", "SHARE"): -2384 return self.expression(exp.Lock, update=False) +2372 def _parse_limit( +2373 self, this: t.Optional[exp.Expression] = None, top: bool = False +2374 ) -> t.Optional[exp.Expression]: +2375 if self._match(TokenType.TOP if top else TokenType.LIMIT): +2376 limit_paren = self._match(TokenType.L_PAREN) +2377 limit_exp = self.expression( +2378 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() +2379 ) +2380 +2381 if limit_paren: +2382 self._match_r_paren() +2383 +2384 return limit_exp 2385 -2386 return None -2387 -2388 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2389 if not self._match_set(self.SET_OPERATIONS): -2390 return this -2391 -2392 token_type = self._prev.token_type +2386 if self._match(TokenType.FETCH): +2387 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) +2388 direction = self._prev.text if direction else "FIRST" +2389 count = self._parse_number() +2390 self._match_set((TokenType.ROW, TokenType.ROWS)) +2391 self._match(TokenType.ONLY) +2392 return self.expression(exp.Fetch, direction=direction, count=count) 2393 -2394 if token_type == TokenType.UNION: -2395 expression = exp.Union -2396 elif token_type == TokenType.EXCEPT: -2397 expression = exp.Except -2398 else: -2399 expression = exp.Intersect -2400 -2401 return self.expression( -2402 expression, -2403 this=this, -2404 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), -2405 expression=self._parse_set_operations(self._parse_select(nested=True)), -2406 ) -2407 -2408 def _parse_expression(self) -> t.Optional[exp.Expression]: -2409 return self._parse_alias(self._parse_conjunction()) -2410 -2411 def _parse_conjunction(self) -> t.Optional[exp.Expression]: -2412 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) -2413 -2414 def _parse_equality(self) -> t.Optional[exp.Expression]: -2415 return self._parse_tokens(self._parse_comparison, self.EQUALITY) -2416 -2417 def _parse_comparison(self) -> t.Optional[exp.Expression]: -2418 return self._parse_tokens(self._parse_range, self.COMPARISON) -2419 -2420 def _parse_range(self) -> t.Optional[exp.Expression]: -2421 this = self._parse_bitwise() -2422 negate = self._match(TokenType.NOT) -2423 -2424 if self._match_set(self.RANGE_PARSERS): -2425 this = self.RANGE_PARSERS[self._prev.token_type](self, this) -2426 elif self._match(TokenType.ISNULL): -2427 this = self.expression(exp.Is, this=this, expression=exp.Null()) -2428 -2429 # Postgres supports ISNULL and NOTNULL for conditions. -2430 # https://blog.andreiavram.ro/postgresql-null-composite-type/ -2431 if self._match(TokenType.NOTNULL): -2432 this = self.expression(exp.Is, this=this, expression=exp.Null()) -2433 this = self.expression(exp.Not, this=this) +2394 return this +2395 +2396 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +2397 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): +2398 return this +2399 +2400 count = self._parse_number() +2401 self._match_set((TokenType.ROW, TokenType.ROWS)) +2402 return self.expression(exp.Offset, this=this, expression=count) +2403 +2404 def _parse_lock(self) -> t.Optional[exp.Expression]: +2405 if self._match_text_seq("FOR", "UPDATE"): +2406 return self.expression(exp.Lock, update=True) +2407 if self._match_text_seq("FOR", "SHARE"): +2408 return self.expression(exp.Lock, update=False) +2409 +2410 return None +2411 +2412 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2413 if not self._match_set(self.SET_OPERATIONS): +2414 return this +2415 +2416 token_type = self._prev.token_type +2417 +2418 if token_type == TokenType.UNION: +2419 expression = exp.Union +2420 elif token_type == TokenType.EXCEPT: +2421 expression = exp.Except +2422 else: +2423 expression = exp.Intersect +2424 +2425 return self.expression( +2426 expression, +2427 this=this, +2428 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), +2429 expression=self._parse_set_operations(self._parse_select(nested=True)), +2430 ) +2431 +2432 def _parse_expression(self) -> t.Optional[exp.Expression]: +2433 return self._parse_alias(self._parse_conjunction()) 2434 -2435 if negate: -2436 this = self.expression(exp.Not, this=this) +2435 def _parse_conjunction(self) -> t.Optional[exp.Expression]: +2436 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) 2437 -2438 if self._match(TokenType.IS): -2439 this = self._parse_is(this) +2438 def _parse_equality(self) -> t.Optional[exp.Expression]: +2439 return self._parse_tokens(self._parse_comparison, self.EQUALITY) 2440 -2441 return this -2442 -2443 def _parse_is(self, this: t.Optional[exp.Expression]) -> exp.Expression: -2444 negate = self._match(TokenType.NOT) -2445 if self._match(TokenType.DISTINCT_FROM): -2446 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ -2447 return self.expression(klass, this=this, expression=self._parse_expression()) -2448 -2449 this = self.expression( -2450 exp.Is, -2451 this=this, -2452 expression=self._parse_null() or self._parse_boolean(), -2453 ) -2454 return self.expression(exp.Not, this=this) if negate else this -2455 -2456 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: -2457 unnest = self._parse_unnest() -2458 if unnest: -2459 this = self.expression(exp.In, this=this, unnest=unnest) -2460 elif self._match(TokenType.L_PAREN): -2461 expressions = self._parse_csv(self._parse_select_or_expression) -2462 -2463 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): -2464 this = self.expression(exp.In, this=this, query=expressions[0]) -2465 else: -2466 this = self.expression(exp.In, this=this, expressions=expressions) -2467 -2468 self._match_r_paren() -2469 else: -2470 this = self.expression(exp.In, this=this, field=self._parse_field()) -2471 -2472 return this -2473 -2474 def _parse_between(self, this: exp.Expression) -> exp.Expression: -2475 low = self._parse_bitwise() -2476 self._match(TokenType.AND) -2477 high = self._parse_bitwise() -2478 return self.expression(exp.Between, this=this, low=low, high=high) +2441 def _parse_comparison(self) -> t.Optional[exp.Expression]: +2442 return self._parse_tokens(self._parse_range, self.COMPARISON) +2443 +2444 def _parse_range(self) -> t.Optional[exp.Expression]: +2445 this = self._parse_bitwise() +2446 negate = self._match(TokenType.NOT) +2447 +2448 if self._match_set(self.RANGE_PARSERS): +2449 this = self.RANGE_PARSERS[self._prev.token_type](self, this) +2450 elif self._match(TokenType.ISNULL): +2451 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2452 +2453 # Postgres supports ISNULL and NOTNULL for conditions. +2454 # https://blog.andreiavram.ro/postgresql-null-composite-type/ +2455 if self._match(TokenType.NOTNULL): +2456 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2457 this = self.expression(exp.Not, this=this) +2458 +2459 if negate: +2460 this = self.expression(exp.Not, this=this) +2461 +2462 if self._match(TokenType.IS): +2463 this = self._parse_is(this) +2464 +2465 return this +2466 +2467 def _parse_is(self, this: t.Optional[exp.Expression]) -> exp.Expression: +2468 negate = self._match(TokenType.NOT) +2469 if self._match(TokenType.DISTINCT_FROM): +2470 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ +2471 return self.expression(klass, this=this, expression=self._parse_expression()) +2472 +2473 this = self.expression( +2474 exp.Is, +2475 this=this, +2476 expression=self._parse_null() or self._parse_boolean(), +2477 ) +2478 return self.expression(exp.Not, this=this) if negate else this 2479 -2480 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2481 if not self._match(TokenType.ESCAPE): -2482 return this -2483 return self.expression(exp.Escape, this=this, expression=self._parse_string()) -2484 -2485 def _parse_bitwise(self) -> t.Optional[exp.Expression]: -2486 this = self._parse_term() -2487 -2488 while True: -2489 if self._match_set(self.BITWISE): -2490 this = self.expression( -2491 self.BITWISE[self._prev.token_type], -2492 this=this, -2493 expression=self._parse_term(), -2494 ) -2495 elif self._match_pair(TokenType.LT, TokenType.LT): -2496 this = self.expression( -2497 exp.BitwiseLeftShift, this=this, expression=self._parse_term() -2498 ) -2499 elif self._match_pair(TokenType.GT, TokenType.GT): -2500 this = self.expression( -2501 exp.BitwiseRightShift, this=this, expression=self._parse_term() -2502 ) -2503 else: -2504 break -2505 -2506 return this -2507 -2508 def _parse_term(self) -> t.Optional[exp.Expression]: -2509 return self._parse_tokens(self._parse_factor, self.TERM) -2510 -2511 def _parse_factor(self) -> t.Optional[exp.Expression]: -2512 return self._parse_tokens(self._parse_unary, self.FACTOR) -2513 -2514 def _parse_unary(self) -> t.Optional[exp.Expression]: -2515 if self._match_set(self.UNARY_PARSERS): -2516 return self.UNARY_PARSERS[self._prev.token_type](self) -2517 return self._parse_at_time_zone(self._parse_type()) -2518 -2519 def _parse_type(self) -> t.Optional[exp.Expression]: -2520 if self._match(TokenType.INTERVAL): -2521 return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_var()) -2522 -2523 index = self._index -2524 type_token = self._parse_types(check_func=True) -2525 this = self._parse_column() -2526 -2527 if type_token: -2528 if this and not isinstance(this, exp.Star): -2529 return self.expression(exp.Cast, this=this, to=type_token) -2530 if not type_token.args.get("expressions"): -2531 self._retreat(index) -2532 return self._parse_column() -2533 return type_token +2480 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: +2481 unnest = self._parse_unnest() +2482 if unnest: +2483 this = self.expression(exp.In, this=this, unnest=unnest) +2484 elif self._match(TokenType.L_PAREN): +2485 expressions = self._parse_csv(self._parse_select_or_expression) +2486 +2487 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): +2488 this = self.expression(exp.In, this=this, query=expressions[0]) +2489 else: +2490 this = self.expression(exp.In, this=this, expressions=expressions) +2491 +2492 self._match_r_paren() +2493 else: +2494 this = self.expression(exp.In, this=this, field=self._parse_field()) +2495 +2496 return this +2497 +2498 def _parse_between(self, this: exp.Expression) -> exp.Expression: +2499 low = self._parse_bitwise() +2500 self._match(TokenType.AND) +2501 high = self._parse_bitwise() +2502 return self.expression(exp.Between, this=this, low=low, high=high) +2503 +2504 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2505 if not self._match(TokenType.ESCAPE): +2506 return this +2507 return self.expression(exp.Escape, this=this, expression=self._parse_string()) +2508 +2509 def _parse_bitwise(self) -> t.Optional[exp.Expression]: +2510 this = self._parse_term() +2511 +2512 while True: +2513 if self._match_set(self.BITWISE): +2514 this = self.expression( +2515 self.BITWISE[self._prev.token_type], +2516 this=this, +2517 expression=self._parse_term(), +2518 ) +2519 elif self._match_pair(TokenType.LT, TokenType.LT): +2520 this = self.expression( +2521 exp.BitwiseLeftShift, this=this, expression=self._parse_term() +2522 ) +2523 elif self._match_pair(TokenType.GT, TokenType.GT): +2524 this = self.expression( +2525 exp.BitwiseRightShift, this=this, expression=self._parse_term() +2526 ) +2527 else: +2528 break +2529 +2530 return this +2531 +2532 def _parse_term(self) -> t.Optional[exp.Expression]: +2533 return self._parse_tokens(self._parse_factor, self.TERM) 2534 -2535 return this -2536 -2537 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: -2538 index = self._index -2539 -2540 prefix = self._match_text_seq("SYSUDTLIB", ".") -2541 -2542 if not self._match_set(self.TYPE_TOKENS): -2543 return None -2544 -2545 type_token = self._prev.token_type +2535 def _parse_factor(self) -> t.Optional[exp.Expression]: +2536 return self._parse_tokens(self._parse_unary, self.FACTOR) +2537 +2538 def _parse_unary(self) -> t.Optional[exp.Expression]: +2539 if self._match_set(self.UNARY_PARSERS): +2540 return self.UNARY_PARSERS[self._prev.token_type](self) +2541 return self._parse_at_time_zone(self._parse_type()) +2542 +2543 def _parse_type(self) -> t.Optional[exp.Expression]: +2544 if self._match(TokenType.INTERVAL): +2545 return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_var()) 2546 -2547 if type_token == TokenType.PSEUDO_TYPE: -2548 return self.expression(exp.PseudoType, this=self._prev.text) -2549 -2550 nested = type_token in self.NESTED_TYPE_TOKENS -2551 is_struct = type_token == TokenType.STRUCT -2552 expressions = None -2553 maybe_func = False -2554 -2555 if self._match(TokenType.L_PAREN): -2556 if is_struct: -2557 expressions = self._parse_csv(self._parse_struct_kwargs) -2558 elif nested: -2559 expressions = self._parse_csv(self._parse_types) -2560 else: -2561 expressions = self._parse_csv(self._parse_conjunction) -2562 -2563 if not expressions: -2564 self._retreat(index) -2565 return None -2566 -2567 self._match_r_paren() -2568 maybe_func = True -2569 -2570 if not nested and self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): -2571 this = exp.DataType( -2572 this=exp.DataType.Type.ARRAY, -2573 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], -2574 nested=True, -2575 ) -2576 -2577 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): -2578 this = exp.DataType( -2579 this=exp.DataType.Type.ARRAY, -2580 expressions=[this], -2581 nested=True, -2582 ) -2583 -2584 return this -2585 -2586 if self._match(TokenType.L_BRACKET): -2587 self._retreat(index) -2588 return None -2589 -2590 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None -2591 if nested and self._match(TokenType.LT): -2592 if is_struct: -2593 expressions = self._parse_csv(self._parse_struct_kwargs) -2594 else: -2595 expressions = self._parse_csv(self._parse_types) -2596 -2597 if not self._match(TokenType.GT): -2598 self.raise_error("Expecting >") -2599 -2600 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): -2601 values = self._parse_csv(self._parse_conjunction) -2602 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) -2603 -2604 value: t.Optional[exp.Expression] = None -2605 if type_token in self.TIMESTAMPS: -2606 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: -2607 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) -2608 elif ( -2609 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ -2610 ): -2611 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) -2612 elif self._match(TokenType.WITHOUT_TIME_ZONE): -2613 if type_token == TokenType.TIME: -2614 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) -2615 else: -2616 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) -2617 -2618 maybe_func = maybe_func and value is None -2619 -2620 if value is None: -2621 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) -2622 elif type_token == TokenType.INTERVAL: -2623 value = self.expression(exp.Interval, unit=self._parse_var()) -2624 -2625 if maybe_func and check_func: -2626 index2 = self._index -2627 peek = self._parse_string() -2628 -2629 if not peek: -2630 self._retreat(index) -2631 return None -2632 -2633 self._retreat(index2) -2634 -2635 if value: -2636 return value -2637 -2638 return exp.DataType( -2639 this=exp.DataType.Type[type_token.value.upper()], -2640 expressions=expressions, -2641 nested=nested, -2642 values=values, -2643 prefix=prefix, -2644 ) -2645 -2646 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: -2647 if self._curr and self._curr.token_type in self.TYPE_TOKENS: -2648 return self._parse_types() -2649 -2650 this = self._parse_id_var() -2651 self._match(TokenType.COLON) -2652 data_type = self._parse_types() +2547 index = self._index +2548 type_token = self._parse_types(check_func=True) +2549 this = self._parse_column() +2550 +2551 if type_token: +2552 if this and not isinstance(this, exp.Star): +2553 return self.expression(exp.Cast, this=this, to=type_token) +2554 if not type_token.args.get("expressions"): +2555 self._retreat(index) +2556 return self._parse_column() +2557 return type_token +2558 +2559 return this +2560 +2561 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: +2562 index = self._index +2563 +2564 prefix = self._match_text_seq("SYSUDTLIB", ".") +2565 +2566 if not self._match_set(self.TYPE_TOKENS): +2567 return None +2568 +2569 type_token = self._prev.token_type +2570 +2571 if type_token == TokenType.PSEUDO_TYPE: +2572 return self.expression(exp.PseudoType, this=self._prev.text) +2573 +2574 nested = type_token in self.NESTED_TYPE_TOKENS +2575 is_struct = type_token == TokenType.STRUCT +2576 expressions = None +2577 maybe_func = False +2578 +2579 if self._match(TokenType.L_PAREN): +2580 if is_struct: +2581 expressions = self._parse_csv(self._parse_struct_kwargs) +2582 elif nested: +2583 expressions = self._parse_csv(self._parse_types) +2584 else: +2585 expressions = self._parse_csv(self._parse_conjunction) +2586 +2587 if not expressions: +2588 self._retreat(index) +2589 return None +2590 +2591 self._match_r_paren() +2592 maybe_func = True +2593 +2594 if not nested and self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2595 this = exp.DataType( +2596 this=exp.DataType.Type.ARRAY, +2597 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], +2598 nested=True, +2599 ) +2600 +2601 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2602 this = exp.DataType( +2603 this=exp.DataType.Type.ARRAY, +2604 expressions=[this], +2605 nested=True, +2606 ) +2607 +2608 return this +2609 +2610 if self._match(TokenType.L_BRACKET): +2611 self._retreat(index) +2612 return None +2613 +2614 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None +2615 if nested and self._match(TokenType.LT): +2616 if is_struct: +2617 expressions = self._parse_csv(self._parse_struct_kwargs) +2618 else: +2619 expressions = self._parse_csv(self._parse_types) +2620 +2621 if not self._match(TokenType.GT): +2622 self.raise_error("Expecting >") +2623 +2624 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): +2625 values = self._parse_csv(self._parse_conjunction) +2626 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) +2627 +2628 value: t.Optional[exp.Expression] = None +2629 if type_token in self.TIMESTAMPS: +2630 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: +2631 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) +2632 elif ( +2633 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ +2634 ): +2635 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) +2636 elif self._match(TokenType.WITHOUT_TIME_ZONE): +2637 if type_token == TokenType.TIME: +2638 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) +2639 else: +2640 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) +2641 +2642 maybe_func = maybe_func and value is None +2643 +2644 if value is None: +2645 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) +2646 elif type_token == TokenType.INTERVAL: +2647 unit = self._parse_var() +2648 +2649 if not unit: +2650 value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) +2651 else: +2652 value = self.expression(exp.Interval, unit=unit) 2653 -2654 if not data_type: -2655 return None -2656 return self.expression(exp.StructKwarg, this=this, expression=data_type) +2654 if maybe_func and check_func: +2655 index2 = self._index +2656 peek = self._parse_string() 2657 -2658 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2659 if not self._match(TokenType.AT_TIME_ZONE): -2660 return this -2661 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) -2662 -2663 def _parse_column(self) -> t.Optional[exp.Expression]: -2664 this = self._parse_field() -2665 if isinstance(this, exp.Identifier): -2666 this = self.expression(exp.Column, this=this) -2667 elif not this: -2668 return self._parse_bracket(this) -2669 this = self._parse_bracket(this) -2670 -2671 while self._match_set(self.COLUMN_OPERATORS): -2672 op_token = self._prev.token_type -2673 op = self.COLUMN_OPERATORS.get(op_token) +2658 if not peek: +2659 self._retreat(index) +2660 return None +2661 +2662 self._retreat(index2) +2663 +2664 if value: +2665 return value +2666 +2667 return exp.DataType( +2668 this=exp.DataType.Type[type_token.value.upper()], +2669 expressions=expressions, +2670 nested=nested, +2671 values=values, +2672 prefix=prefix, +2673 ) 2674 -2675 if op_token == TokenType.DCOLON: -2676 field = self._parse_types() -2677 if not field: -2678 self.raise_error("Expected type") -2679 elif op: -2680 self._advance() -2681 value = self._prev.text -2682 field = ( -2683 exp.Literal.number(value) -2684 if self._prev.token_type == TokenType.NUMBER -2685 else exp.Literal.string(value) -2686 ) -2687 else: -2688 field = self._parse_star() or self._parse_function() or self._parse_id_var() -2689 -2690 if isinstance(field, exp.Func): -2691 # bigquery allows function calls like x.y.count(...) -2692 # SAFE.SUBSTR(...) -2693 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules -2694 this = self._replace_columns_with_dots(this) -2695 -2696 if op: -2697 this = op(self, this, field) -2698 elif isinstance(this, exp.Column) and not this.args.get("catalog"): -2699 this = self.expression( -2700 exp.Column, -2701 this=field, -2702 table=this.this, -2703 db=this.args.get("table"), -2704 catalog=this.args.get("db"), -2705 ) -2706 else: -2707 this = self.expression(exp.Dot, this=this, expression=field) -2708 this = self._parse_bracket(this) -2709 -2710 return this -2711 -2712 def _parse_primary(self) -> t.Optional[exp.Expression]: -2713 if self._match_set(self.PRIMARY_PARSERS): -2714 token_type = self._prev.token_type -2715 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) -2716 -2717 if token_type == TokenType.STRING: -2718 expressions = [primary] -2719 while self._match(TokenType.STRING): -2720 expressions.append(exp.Literal.string(self._prev.text)) -2721 if len(expressions) > 1: -2722 return self.expression(exp.Concat, expressions=expressions) -2723 return primary +2675 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: +2676 if self._curr and self._curr.token_type in self.TYPE_TOKENS: +2677 return self._parse_types() +2678 +2679 this = self._parse_id_var() +2680 self._match(TokenType.COLON) +2681 data_type = self._parse_types() +2682 +2683 if not data_type: +2684 return None +2685 return self.expression(exp.StructKwarg, this=this, expression=data_type) +2686 +2687 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2688 if not self._match(TokenType.AT_TIME_ZONE): +2689 return this +2690 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) +2691 +2692 def _parse_column(self) -> t.Optional[exp.Expression]: +2693 this = self._parse_field() +2694 if isinstance(this, exp.Identifier): +2695 this = self.expression(exp.Column, this=this) +2696 elif not this: +2697 return self._parse_bracket(this) +2698 this = self._parse_bracket(this) +2699 +2700 while self._match_set(self.COLUMN_OPERATORS): +2701 op_token = self._prev.token_type +2702 op = self.COLUMN_OPERATORS.get(op_token) +2703 +2704 if op_token == TokenType.DCOLON: +2705 field = self._parse_types() +2706 if not field: +2707 self.raise_error("Expected type") +2708 elif op: +2709 self._advance() +2710 value = self._prev.text +2711 field = ( +2712 exp.Literal.number(value) +2713 if self._prev.token_type == TokenType.NUMBER +2714 else exp.Literal.string(value) +2715 ) +2716 else: +2717 field = self._parse_star() or self._parse_function() or self._parse_id_var() +2718 +2719 if isinstance(field, exp.Func): +2720 # bigquery allows function calls like x.y.count(...) +2721 # SAFE.SUBSTR(...) +2722 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules +2723 this = self._replace_columns_with_dots(this) 2724 -2725 if self._match_pair(TokenType.DOT, TokenType.NUMBER): -2726 return exp.Literal.number(f"0.{self._prev.text}") -2727 -2728 if self._match(TokenType.L_PAREN): -2729 comments = self._prev_comments -2730 query = self._parse_select() -2731 -2732 if query: -2733 expressions = [query] -2734 else: -2735 expressions = self._parse_csv( -2736 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) -2737 ) +2725 if op: +2726 this = op(self, this, field) +2727 elif isinstance(this, exp.Column) and not this.args.get("catalog"): +2728 this = self.expression( +2729 exp.Column, +2730 this=field, +2731 table=this.this, +2732 db=this.args.get("table"), +2733 catalog=this.args.get("db"), +2734 ) +2735 else: +2736 this = self.expression(exp.Dot, this=this, expression=field) +2737 this = self._parse_bracket(this) 2738 -2739 this = seq_get(expressions, 0) -2740 self._parse_query_modifiers(this) -2741 self._match_r_paren() -2742 -2743 if isinstance(this, exp.Subqueryable): -2744 this = self._parse_set_operations( -2745 self._parse_subquery(this=this, parse_alias=False) -2746 ) -2747 elif len(expressions) > 1: -2748 this = self.expression(exp.Tuple, expressions=expressions) -2749 else: -2750 this = self.expression(exp.Paren, this=this) -2751 -2752 if this and comments: -2753 this.comments = comments -2754 -2755 return this +2739 return this +2740 +2741 def _parse_primary(self) -> t.Optional[exp.Expression]: +2742 if self._match_set(self.PRIMARY_PARSERS): +2743 token_type = self._prev.token_type +2744 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) +2745 +2746 if token_type == TokenType.STRING: +2747 expressions = [primary] +2748 while self._match(TokenType.STRING): +2749 expressions.append(exp.Literal.string(self._prev.text)) +2750 if len(expressions) > 1: +2751 return self.expression(exp.Concat, expressions=expressions) +2752 return primary +2753 +2754 if self._match_pair(TokenType.DOT, TokenType.NUMBER): +2755 return exp.Literal.number(f"0.{self._prev.text}") 2756 -2757 return None -2758 -2759 def _parse_field(self, any_token: bool = False) -> t.Optional[exp.Expression]: -2760 return self._parse_primary() or self._parse_function() or self._parse_id_var(any_token) -2761 -2762 def _parse_function( -2763 self, functions: t.Optional[t.Dict[str, t.Callable]] = None -2764 ) -> t.Optional[exp.Expression]: -2765 if not self._curr: -2766 return None +2757 if self._match(TokenType.L_PAREN): +2758 comments = self._prev_comments +2759 query = self._parse_select() +2760 +2761 if query: +2762 expressions = [query] +2763 else: +2764 expressions = self._parse_csv( +2765 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) +2766 ) 2767 -2768 token_type = self._curr.token_type -2769 -2770 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): -2771 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) -2772 -2773 if not self._next or self._next.token_type != TokenType.L_PAREN: -2774 if token_type in self.NO_PAREN_FUNCTIONS: -2775 self._advance() -2776 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) -2777 -2778 return None -2779 -2780 if token_type not in self.FUNC_TOKENS: -2781 return None -2782 -2783 this = self._curr.text -2784 upper = this.upper() -2785 self._advance(2) -2786 -2787 parser = self.FUNCTION_PARSERS.get(upper) -2788 -2789 if parser: -2790 this = parser(self) -2791 else: -2792 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) -2793 -2794 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): -2795 this = self.expression(subquery_predicate, this=self._parse_select()) -2796 self._match_r_paren() -2797 return this +2768 this = seq_get(expressions, 0) +2769 self._parse_query_modifiers(this) +2770 self._match_r_paren() +2771 +2772 if isinstance(this, exp.Subqueryable): +2773 this = self._parse_set_operations( +2774 self._parse_subquery(this=this, parse_alias=False) +2775 ) +2776 elif len(expressions) > 1: +2777 this = self.expression(exp.Tuple, expressions=expressions) +2778 else: +2779 this = self.expression(exp.Paren, this=this) +2780 +2781 if this and comments: +2782 this.comments = comments +2783 +2784 return this +2785 +2786 return None +2787 +2788 def _parse_field(self, any_token: bool = False) -> t.Optional[exp.Expression]: +2789 return self._parse_primary() or self._parse_function() or self._parse_id_var(any_token) +2790 +2791 def _parse_function( +2792 self, functions: t.Optional[t.Dict[str, t.Callable]] = None +2793 ) -> t.Optional[exp.Expression]: +2794 if not self._curr: +2795 return None +2796 +2797 token_type = self._curr.token_type 2798 -2799 if functions is None: -2800 functions = self.FUNCTIONS +2799 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): +2800 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) 2801 -2802 function = functions.get(upper) -2803 args = self._parse_csv(self._parse_lambda) -2804 -2805 if function: -2806 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the -2807 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. -2808 if count_params(function) == 2: -2809 params = None -2810 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): -2811 params = self._parse_csv(self._parse_lambda) -2812 -2813 this = function(args, params) -2814 else: -2815 this = function(args) -2816 -2817 self.validate_expression(this, args) -2818 else: -2819 this = self.expression(exp.Anonymous, this=this, expressions=args) -2820 -2821 self._match_r_paren(this) -2822 return self._parse_window(this) -2823 -2824 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: -2825 return self._parse_column_def(self._parse_id_var()) -2826 -2827 def _parse_user_defined_function( -2828 self, kind: t.Optional[TokenType] = None -2829 ) -> t.Optional[exp.Expression]: -2830 this = self._parse_id_var() -2831 -2832 while self._match(TokenType.DOT): -2833 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) -2834 -2835 if not self._match(TokenType.L_PAREN): -2836 return this -2837 -2838 expressions = self._parse_csv(self._parse_function_parameter) -2839 self._match_r_paren() -2840 return self.expression( -2841 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True -2842 ) -2843 -2844 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: -2845 literal = self._parse_primary() -2846 if literal: -2847 return self.expression(exp.Introducer, this=token.text, expression=literal) -2848 -2849 return self.expression(exp.Identifier, this=token.text) -2850 -2851 def _parse_national(self, token: Token) -> exp.Expression: -2852 return self.expression(exp.National, this=exp.Literal.string(token.text)) -2853 -2854 def _parse_session_parameter(self) -> exp.Expression: -2855 kind = None -2856 this = self._parse_id_var() or self._parse_primary() -2857 -2858 if this and self._match(TokenType.DOT): -2859 kind = this.name -2860 this = self._parse_var() or self._parse_primary() -2861 -2862 return self.expression(exp.SessionParameter, this=this, kind=kind) +2802 if not self._next or self._next.token_type != TokenType.L_PAREN: +2803 if token_type in self.NO_PAREN_FUNCTIONS: +2804 self._advance() +2805 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) +2806 +2807 return None +2808 +2809 if token_type not in self.FUNC_TOKENS: +2810 return None +2811 +2812 this = self._curr.text +2813 upper = this.upper() +2814 self._advance(2) +2815 +2816 parser = self.FUNCTION_PARSERS.get(upper) +2817 +2818 if parser: +2819 this = parser(self) +2820 else: +2821 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) +2822 +2823 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): +2824 this = self.expression(subquery_predicate, this=self._parse_select()) +2825 self._match_r_paren() +2826 return this +2827 +2828 if functions is None: +2829 functions = self.FUNCTIONS +2830 +2831 function = functions.get(upper) +2832 args = self._parse_csv(self._parse_lambda) +2833 +2834 if function: +2835 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the +2836 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. +2837 if count_params(function) == 2: +2838 params = None +2839 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): +2840 params = self._parse_csv(self._parse_lambda) +2841 +2842 this = function(args, params) +2843 else: +2844 this = function(args) +2845 +2846 self.validate_expression(this, args) +2847 else: +2848 this = self.expression(exp.Anonymous, this=this, expressions=args) +2849 +2850 self._match_r_paren(this) +2851 return self._parse_window(this) +2852 +2853 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: +2854 return self._parse_column_def(self._parse_id_var()) +2855 +2856 def _parse_user_defined_function( +2857 self, kind: t.Optional[TokenType] = None +2858 ) -> t.Optional[exp.Expression]: +2859 this = self._parse_id_var() +2860 +2861 while self._match(TokenType.DOT): +2862 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) 2863 -2864 def _parse_lambda(self) -> t.Optional[exp.Expression]: -2865 index = self._index +2864 if not self._match(TokenType.L_PAREN): +2865 return this 2866 -2867 if self._match(TokenType.L_PAREN): -2868 expressions = self._parse_csv(self._parse_id_var) -2869 -2870 if not self._match(TokenType.R_PAREN): -2871 self._retreat(index) -2872 else: -2873 expressions = [self._parse_id_var()] -2874 -2875 if self._match_set(self.LAMBDAS): -2876 return self.LAMBDAS[self._prev.token_type](self, expressions) +2867 expressions = self._parse_csv(self._parse_function_parameter) +2868 self._match_r_paren() +2869 return self.expression( +2870 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True +2871 ) +2872 +2873 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: +2874 literal = self._parse_primary() +2875 if literal: +2876 return self.expression(exp.Introducer, this=token.text, expression=literal) 2877 -2878 self._retreat(index) +2878 return self.expression(exp.Identifier, this=token.text) 2879 -2880 this: t.Optional[exp.Expression] -2881 -2882 if self._match(TokenType.DISTINCT): -2883 this = self.expression( -2884 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) -2885 ) -2886 else: -2887 this = self._parse_select_or_expression() -2888 -2889 if self._match(TokenType.IGNORE_NULLS): -2890 this = self.expression(exp.IgnoreNulls, this=this) -2891 else: -2892 self._match(TokenType.RESPECT_NULLS) -2893 -2894 return self._parse_limit(self._parse_order(this)) +2880 def _parse_national(self, token: Token) -> exp.Expression: +2881 return self.expression(exp.National, this=exp.Literal.string(token.text)) +2882 +2883 def _parse_session_parameter(self) -> exp.Expression: +2884 kind = None +2885 this = self._parse_id_var() or self._parse_primary() +2886 +2887 if this and self._match(TokenType.DOT): +2888 kind = this.name +2889 this = self._parse_var() or self._parse_primary() +2890 +2891 return self.expression(exp.SessionParameter, this=this, kind=kind) +2892 +2893 def _parse_lambda(self) -> t.Optional[exp.Expression]: +2894 index = self._index 2895 -2896 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: -2897 index = self._index -2898 if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT): -2899 self._retreat(index) -2900 return this -2901 -2902 args = self._parse_csv( -2903 lambda: self._parse_constraint() -2904 or self._parse_column_def(self._parse_field(any_token=True)) -2905 ) -2906 self._match_r_paren() -2907 return self.expression(exp.Schema, this=this, expressions=args) +2896 if self._match(TokenType.L_PAREN): +2897 expressions = self._parse_csv(self._parse_id_var) +2898 +2899 if not self._match(TokenType.R_PAREN): +2900 self._retreat(index) +2901 else: +2902 expressions = [self._parse_id_var()] +2903 +2904 if self._match_set(self.LAMBDAS): +2905 return self.LAMBDAS[self._prev.token_type](self, expressions) +2906 +2907 self._retreat(index) 2908 -2909 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2910 kind = self._parse_types() -2911 -2912 if self._match_text_seq("FOR", "ORDINALITY"): -2913 return self.expression(exp.ColumnDef, this=this, ordinality=True) -2914 -2915 constraints = [] -2916 while True: -2917 constraint = self._parse_column_constraint() -2918 if not constraint: -2919 break -2920 constraints.append(constraint) -2921 -2922 if not kind and not constraints: -2923 return this +2909 this: t.Optional[exp.Expression] +2910 +2911 if self._match(TokenType.DISTINCT): +2912 this = self.expression( +2913 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) +2914 ) +2915 else: +2916 this = self._parse_select_or_expression() +2917 +2918 if self._match(TokenType.IGNORE_NULLS): +2919 this = self.expression(exp.IgnoreNulls, this=this) +2920 else: +2921 self._match(TokenType.RESPECT_NULLS) +2922 +2923 return self._parse_limit(self._parse_order(this)) 2924 -2925 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) -2926 -2927 def _parse_auto_increment(self) -> exp.Expression: -2928 start = None -2929 increment = None +2925 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +2926 index = self._index +2927 if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT): +2928 self._retreat(index) +2929 return this 2930 -2931 if self._match(TokenType.L_PAREN, advance=False): -2932 args = self._parse_wrapped_csv(self._parse_bitwise) -2933 start = seq_get(args, 0) -2934 increment = seq_get(args, 1) -2935 elif self._match_text_seq("START"): -2936 start = self._parse_bitwise() -2937 self._match_text_seq("INCREMENT") -2938 increment = self._parse_bitwise() -2939 -2940 if start and increment: -2941 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) -2942 -2943 return exp.AutoIncrementColumnConstraint() -2944 -2945 def _parse_compress(self) -> exp.Expression: -2946 if self._match(TokenType.L_PAREN, advance=False): -2947 return self.expression( -2948 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) -2949 ) +2931 args = self._parse_csv( +2932 lambda: self._parse_constraint() +2933 or self._parse_column_def(self._parse_field(any_token=True)) +2934 ) +2935 self._match_r_paren() +2936 return self.expression(exp.Schema, this=this, expressions=args) +2937 +2938 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2939 kind = self._parse_types() +2940 +2941 if self._match_text_seq("FOR", "ORDINALITY"): +2942 return self.expression(exp.ColumnDef, this=this, ordinality=True) +2943 +2944 constraints = [] +2945 while True: +2946 constraint = self._parse_column_constraint() +2947 if not constraint: +2948 break +2949 constraints.append(constraint) 2950 -2951 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) -2952 -2953 def _parse_generated_as_identity(self) -> exp.Expression: -2954 if self._match(TokenType.BY_DEFAULT): -2955 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) -2956 else: -2957 self._match_text_seq("ALWAYS") -2958 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) +2951 if not kind and not constraints: +2952 return this +2953 +2954 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) +2955 +2956 def _parse_auto_increment(self) -> exp.Expression: +2957 start = None +2958 increment = None 2959 -2960 self._match_text_seq("AS", "IDENTITY") -2961 if self._match(TokenType.L_PAREN): -2962 if self._match_text_seq("START", "WITH"): -2963 this.set("start", self._parse_bitwise()) -2964 if self._match_text_seq("INCREMENT", "BY"): -2965 this.set("increment", self._parse_bitwise()) -2966 if self._match_text_seq("MINVALUE"): -2967 this.set("minvalue", self._parse_bitwise()) -2968 if self._match_text_seq("MAXVALUE"): -2969 this.set("maxvalue", self._parse_bitwise()) -2970 -2971 if self._match_text_seq("CYCLE"): -2972 this.set("cycle", True) -2973 elif self._match_text_seq("NO", "CYCLE"): -2974 this.set("cycle", False) -2975 -2976 self._match_r_paren() -2977 -2978 return this +2960 if self._match(TokenType.L_PAREN, advance=False): +2961 args = self._parse_wrapped_csv(self._parse_bitwise) +2962 start = seq_get(args, 0) +2963 increment = seq_get(args, 1) +2964 elif self._match_text_seq("START"): +2965 start = self._parse_bitwise() +2966 self._match_text_seq("INCREMENT") +2967 increment = self._parse_bitwise() +2968 +2969 if start and increment: +2970 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) +2971 +2972 return exp.AutoIncrementColumnConstraint() +2973 +2974 def _parse_compress(self) -> exp.Expression: +2975 if self._match(TokenType.L_PAREN, advance=False): +2976 return self.expression( +2977 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) +2978 ) 2979 -2980 def _parse_inline(self) -> t.Optional[exp.Expression]: -2981 self._match_text_seq("LENGTH") -2982 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) -2983 -2984 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: -2985 if self._match_text_seq("NULL"): -2986 return self.expression(exp.NotNullColumnConstraint) -2987 if self._match_text_seq("CASESPECIFIC"): -2988 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) -2989 return None -2990 -2991 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: -2992 this = self._parse_references() -2993 if this: -2994 return this -2995 -2996 if self._match(TokenType.CONSTRAINT): -2997 this = self._parse_id_var() -2998 -2999 if self._match_texts(self.CONSTRAINT_PARSERS): -3000 return self.expression( -3001 exp.ColumnConstraint, -3002 this=this, -3003 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), -3004 ) -3005 -3006 return this -3007 -3008 def _parse_constraint(self) -> t.Optional[exp.Expression]: -3009 if not self._match(TokenType.CONSTRAINT): -3010 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) -3011 -3012 this = self._parse_id_var() -3013 expressions = [] -3014 -3015 while True: -3016 constraint = self._parse_unnamed_constraint() or self._parse_function() -3017 if not constraint: -3018 break -3019 expressions.append(constraint) -3020 -3021 return self.expression(exp.Constraint, this=this, expressions=expressions) -3022 -3023 def _parse_unnamed_constraint( -3024 self, constraints: t.Optional[t.Collection[str]] = None -3025 ) -> t.Optional[exp.Expression]: -3026 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): -3027 return None -3028 -3029 constraint = self._prev.text.upper() -3030 if constraint not in self.CONSTRAINT_PARSERS: -3031 self.raise_error(f"No parser found for schema constraint {constraint}.") -3032 -3033 return self.CONSTRAINT_PARSERS[constraint](self) +2980 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) +2981 +2982 def _parse_generated_as_identity(self) -> exp.Expression: +2983 if self._match(TokenType.BY_DEFAULT): +2984 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) +2985 else: +2986 self._match_text_seq("ALWAYS") +2987 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) +2988 +2989 self._match_text_seq("AS", "IDENTITY") +2990 if self._match(TokenType.L_PAREN): +2991 if self._match_text_seq("START", "WITH"): +2992 this.set("start", self._parse_bitwise()) +2993 if self._match_text_seq("INCREMENT", "BY"): +2994 this.set("increment", self._parse_bitwise()) +2995 if self._match_text_seq("MINVALUE"): +2996 this.set("minvalue", self._parse_bitwise()) +2997 if self._match_text_seq("MAXVALUE"): +2998 this.set("maxvalue", self._parse_bitwise()) +2999 +3000 if self._match_text_seq("CYCLE"): +3001 this.set("cycle", True) +3002 elif self._match_text_seq("NO", "CYCLE"): +3003 this.set("cycle", False) +3004 +3005 self._match_r_paren() +3006 +3007 return this +3008 +3009 def _parse_inline(self) -> t.Optional[exp.Expression]: +3010 self._match_text_seq("LENGTH") +3011 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) +3012 +3013 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: +3014 if self._match_text_seq("NULL"): +3015 return self.expression(exp.NotNullColumnConstraint) +3016 if self._match_text_seq("CASESPECIFIC"): +3017 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) +3018 return None +3019 +3020 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: +3021 this = self._parse_references() +3022 if this: +3023 return this +3024 +3025 if self._match(TokenType.CONSTRAINT): +3026 this = self._parse_id_var() +3027 +3028 if self._match_texts(self.CONSTRAINT_PARSERS): +3029 return self.expression( +3030 exp.ColumnConstraint, +3031 this=this, +3032 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), +3033 ) 3034 -3035 def _parse_unique(self) -> exp.Expression: -3036 if not self._match(TokenType.L_PAREN, advance=False): -3037 return self.expression(exp.UniqueColumnConstraint) -3038 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) -3039 -3040 def _parse_key_constraint_options(self) -> t.List[str]: -3041 options = [] -3042 while True: -3043 if not self._curr: -3044 break -3045 -3046 if self._match(TokenType.ON): -3047 action = None -3048 on = self._advance_any() and self._prev.text +3035 return this +3036 +3037 def _parse_constraint(self) -> t.Optional[exp.Expression]: +3038 if not self._match(TokenType.CONSTRAINT): +3039 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) +3040 +3041 this = self._parse_id_var() +3042 expressions = [] +3043 +3044 while True: +3045 constraint = self._parse_unnamed_constraint() or self._parse_function() +3046 if not constraint: +3047 break +3048 expressions.append(constraint) 3049 -3050 if self._match(TokenType.NO_ACTION): -3051 action = "NO ACTION" -3052 elif self._match(TokenType.CASCADE): -3053 action = "CASCADE" -3054 elif self._match_pair(TokenType.SET, TokenType.NULL): -3055 action = "SET NULL" -3056 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): -3057 action = "SET DEFAULT" -3058 else: -3059 self.raise_error("Invalid key constraint") -3060 -3061 options.append(f"ON {on} {action}") -3062 elif self._match_text_seq("NOT", "ENFORCED"): -3063 options.append("NOT ENFORCED") -3064 elif self._match_text_seq("DEFERRABLE"): -3065 options.append("DEFERRABLE") -3066 elif self._match_text_seq("INITIALLY", "DEFERRED"): -3067 options.append("INITIALLY DEFERRED") -3068 elif self._match_text_seq("NORELY"): -3069 options.append("NORELY") -3070 elif self._match_text_seq("MATCH", "FULL"): -3071 options.append("MATCH FULL") -3072 else: +3050 return self.expression(exp.Constraint, this=this, expressions=expressions) +3051 +3052 def _parse_unnamed_constraint( +3053 self, constraints: t.Optional[t.Collection[str]] = None +3054 ) -> t.Optional[exp.Expression]: +3055 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): +3056 return None +3057 +3058 constraint = self._prev.text.upper() +3059 if constraint not in self.CONSTRAINT_PARSERS: +3060 self.raise_error(f"No parser found for schema constraint {constraint}.") +3061 +3062 return self.CONSTRAINT_PARSERS[constraint](self) +3063 +3064 def _parse_unique(self) -> exp.Expression: +3065 if not self._match(TokenType.L_PAREN, advance=False): +3066 return self.expression(exp.UniqueColumnConstraint) +3067 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) +3068 +3069 def _parse_key_constraint_options(self) -> t.List[str]: +3070 options = [] +3071 while True: +3072 if not self._curr: 3073 break 3074 -3075 return options -3076 -3077 def _parse_references(self) -> t.Optional[exp.Expression]: -3078 if not self._match(TokenType.REFERENCES): -3079 return None -3080 -3081 expressions = None -3082 this = self._parse_id_var() -3083 -3084 if self._match(TokenType.L_PAREN, advance=False): -3085 expressions = self._parse_wrapped_id_vars() -3086 -3087 options = self._parse_key_constraint_options() -3088 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) +3075 if self._match(TokenType.ON): +3076 action = None +3077 on = self._advance_any() and self._prev.text +3078 +3079 if self._match(TokenType.NO_ACTION): +3080 action = "NO ACTION" +3081 elif self._match(TokenType.CASCADE): +3082 action = "CASCADE" +3083 elif self._match_pair(TokenType.SET, TokenType.NULL): +3084 action = "SET NULL" +3085 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): +3086 action = "SET DEFAULT" +3087 else: +3088 self.raise_error("Invalid key constraint") 3089 -3090 def _parse_foreign_key(self) -> exp.Expression: -3091 expressions = self._parse_wrapped_id_vars() -3092 reference = self._parse_references() -3093 options = {} -3094 -3095 while self._match(TokenType.ON): -3096 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): -3097 self.raise_error("Expected DELETE or UPDATE") -3098 -3099 kind = self._prev.text.lower() -3100 -3101 if self._match(TokenType.NO_ACTION): -3102 action = "NO ACTION" -3103 elif self._match(TokenType.SET): -3104 self._match_set((TokenType.NULL, TokenType.DEFAULT)) -3105 action = "SET " + self._prev.text.upper() -3106 else: -3107 self._advance() -3108 action = self._prev.text.upper() +3090 options.append(f"ON {on} {action}") +3091 elif self._match_text_seq("NOT", "ENFORCED"): +3092 options.append("NOT ENFORCED") +3093 elif self._match_text_seq("DEFERRABLE"): +3094 options.append("DEFERRABLE") +3095 elif self._match_text_seq("INITIALLY", "DEFERRED"): +3096 options.append("INITIALLY DEFERRED") +3097 elif self._match_text_seq("NORELY"): +3098 options.append("NORELY") +3099 elif self._match_text_seq("MATCH", "FULL"): +3100 options.append("MATCH FULL") +3101 else: +3102 break +3103 +3104 return options +3105 +3106 def _parse_references(self) -> t.Optional[exp.Expression]: +3107 if not self._match(TokenType.REFERENCES): +3108 return None 3109 -3110 options[kind] = action -3111 -3112 return self.expression( -3113 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore -3114 ) +3110 expressions = None +3111 this = self._parse_id_var() +3112 +3113 if self._match(TokenType.L_PAREN, advance=False): +3114 expressions = self._parse_wrapped_id_vars() 3115 -3116 def _parse_primary_key(self) -> exp.Expression: -3117 desc = ( -3118 self._match_set((TokenType.ASC, TokenType.DESC)) -3119 and self._prev.token_type == TokenType.DESC -3120 ) -3121 -3122 if not self._match(TokenType.L_PAREN, advance=False): -3123 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) -3124 -3125 expressions = self._parse_wrapped_id_vars() -3126 options = self._parse_key_constraint_options() -3127 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) -3128 -3129 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3130 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): -3131 return this -3132 -3133 bracket_kind = self._prev.token_type -3134 expressions: t.List[t.Optional[exp.Expression]] -3135 -3136 if self._match(TokenType.COLON): -3137 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] -3138 else: -3139 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) +3116 options = self._parse_key_constraint_options() +3117 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) +3118 +3119 def _parse_foreign_key(self) -> exp.Expression: +3120 expressions = self._parse_wrapped_id_vars() +3121 reference = self._parse_references() +3122 options = {} +3123 +3124 while self._match(TokenType.ON): +3125 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): +3126 self.raise_error("Expected DELETE or UPDATE") +3127 +3128 kind = self._prev.text.lower() +3129 +3130 if self._match(TokenType.NO_ACTION): +3131 action = "NO ACTION" +3132 elif self._match(TokenType.SET): +3133 self._match_set((TokenType.NULL, TokenType.DEFAULT)) +3134 action = "SET " + self._prev.text.upper() +3135 else: +3136 self._advance() +3137 action = self._prev.text.upper() +3138 +3139 options[kind] = action 3140 -3141 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs -3142 if bracket_kind == TokenType.L_BRACE: -3143 this = self.expression(exp.Struct, expressions=expressions) -3144 elif not this or this.name.upper() == "ARRAY": -3145 this = self.expression(exp.Array, expressions=expressions) -3146 else: -3147 expressions = apply_index_offset(expressions, -self.index_offset) -3148 this = self.expression(exp.Bracket, this=this, expressions=expressions) -3149 -3150 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: -3151 self.raise_error("Expected ]") -3152 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: -3153 self.raise_error("Expected }") -3154 -3155 this.comments = self._prev_comments -3156 return self._parse_bracket(this) +3141 return self.expression( +3142 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore +3143 ) +3144 +3145 def _parse_primary_key(self) -> exp.Expression: +3146 desc = ( +3147 self._match_set((TokenType.ASC, TokenType.DESC)) +3148 and self._prev.token_type == TokenType.DESC +3149 ) +3150 +3151 if not self._match(TokenType.L_PAREN, advance=False): +3152 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) +3153 +3154 expressions = self._parse_wrapped_id_vars() +3155 options = self._parse_key_constraint_options() +3156 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) 3157 -3158 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3159 if self._match(TokenType.COLON): -3160 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) -3161 return this -3162 -3163 def _parse_case(self) -> t.Optional[exp.Expression]: -3164 ifs = [] -3165 default = None -3166 -3167 expression = self._parse_conjunction() -3168 -3169 while self._match(TokenType.WHEN): -3170 this = self._parse_conjunction() -3171 self._match(TokenType.THEN) -3172 then = self._parse_conjunction() -3173 ifs.append(self.expression(exp.If, this=this, true=then)) -3174 -3175 if self._match(TokenType.ELSE): -3176 default = self._parse_conjunction() -3177 -3178 if not self._match(TokenType.END): -3179 self.raise_error("Expected END after CASE", self._prev) -3180 -3181 return self._parse_window( -3182 self.expression(exp.Case, this=expression, ifs=ifs, default=default) -3183 ) -3184 -3185 def _parse_if(self) -> t.Optional[exp.Expression]: -3186 if self._match(TokenType.L_PAREN): -3187 args = self._parse_csv(self._parse_conjunction) -3188 this = exp.If.from_arg_list(args) -3189 self.validate_expression(this, args) -3190 self._match_r_paren() -3191 else: -3192 condition = self._parse_conjunction() -3193 self._match(TokenType.THEN) -3194 true = self._parse_conjunction() -3195 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None -3196 self._match(TokenType.END) -3197 this = self.expression(exp.If, this=condition, true=true, false=false) -3198 -3199 return self._parse_window(this) -3200 -3201 def _parse_extract(self) -> exp.Expression: -3202 this = self._parse_function() or self._parse_var() or self._parse_type() +3158 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3159 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): +3160 return this +3161 +3162 bracket_kind = self._prev.token_type +3163 expressions: t.List[t.Optional[exp.Expression]] +3164 +3165 if self._match(TokenType.COLON): +3166 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] +3167 else: +3168 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) +3169 +3170 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs +3171 if bracket_kind == TokenType.L_BRACE: +3172 this = self.expression(exp.Struct, expressions=expressions) +3173 elif not this or this.name.upper() == "ARRAY": +3174 this = self.expression(exp.Array, expressions=expressions) +3175 else: +3176 expressions = apply_index_offset(expressions, -self.index_offset) +3177 this = self.expression(exp.Bracket, this=this, expressions=expressions) +3178 +3179 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: +3180 self.raise_error("Expected ]") +3181 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: +3182 self.raise_error("Expected }") +3183 +3184 this.comments = self._prev_comments +3185 return self._parse_bracket(this) +3186 +3187 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3188 if self._match(TokenType.COLON): +3189 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) +3190 return this +3191 +3192 def _parse_case(self) -> t.Optional[exp.Expression]: +3193 ifs = [] +3194 default = None +3195 +3196 expression = self._parse_conjunction() +3197 +3198 while self._match(TokenType.WHEN): +3199 this = self._parse_conjunction() +3200 self._match(TokenType.THEN) +3201 then = self._parse_conjunction() +3202 ifs.append(self.expression(exp.If, this=this, true=then)) 3203 -3204 if self._match(TokenType.FROM): -3205 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3204 if self._match(TokenType.ELSE): +3205 default = self._parse_conjunction() 3206 -3207 if not self._match(TokenType.COMMA): -3208 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) +3207 if not self._match(TokenType.END): +3208 self.raise_error("Expected END after CASE", self._prev) 3209 -3210 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) -3211 -3212 def _parse_cast(self, strict: bool) -> exp.Expression: -3213 this = self._parse_conjunction() -3214 -3215 if not self._match(TokenType.ALIAS): -3216 self.raise_error("Expected AS after CAST") -3217 -3218 to = self._parse_types() -3219 -3220 if not to: -3221 self.raise_error("Expected TYPE after CAST") -3222 elif to.this == exp.DataType.Type.CHAR: -3223 if self._match(TokenType.CHARACTER_SET): -3224 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) -3225 -3226 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3210 return self._parse_window( +3211 self.expression(exp.Case, this=expression, ifs=ifs, default=default) +3212 ) +3213 +3214 def _parse_if(self) -> t.Optional[exp.Expression]: +3215 if self._match(TokenType.L_PAREN): +3216 args = self._parse_csv(self._parse_conjunction) +3217 this = exp.If.from_arg_list(args) +3218 self.validate_expression(this, args) +3219 self._match_r_paren() +3220 else: +3221 condition = self._parse_conjunction() +3222 self._match(TokenType.THEN) +3223 true = self._parse_conjunction() +3224 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None +3225 self._match(TokenType.END) +3226 this = self.expression(exp.If, this=condition, true=true, false=false) 3227 -3228 def _parse_string_agg(self) -> exp.Expression: -3229 expression: t.Optional[exp.Expression] -3230 -3231 if self._match(TokenType.DISTINCT): -3232 args = self._parse_csv(self._parse_conjunction) -3233 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) -3234 else: -3235 args = self._parse_csv(self._parse_conjunction) -3236 expression = seq_get(args, 0) -3237 -3238 index = self._index -3239 if not self._match(TokenType.R_PAREN): -3240 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) -3241 order = self._parse_order(this=expression) -3242 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3228 return self._parse_window(this) +3229 +3230 def _parse_extract(self) -> exp.Expression: +3231 this = self._parse_function() or self._parse_var() or self._parse_type() +3232 +3233 if self._match(TokenType.FROM): +3234 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3235 +3236 if not self._match(TokenType.COMMA): +3237 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) +3238 +3239 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3240 +3241 def _parse_cast(self, strict: bool) -> exp.Expression: +3242 this = self._parse_conjunction() 3243 -3244 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). -3245 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that -3246 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. -3247 if not self._match(TokenType.WITHIN_GROUP): -3248 self._retreat(index) -3249 this = exp.GroupConcat.from_arg_list(args) -3250 self.validate_expression(this, args) -3251 return this -3252 -3253 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) -3254 order = self._parse_order(this=expression) -3255 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3244 if not self._match(TokenType.ALIAS): +3245 self.raise_error("Expected AS after CAST") +3246 +3247 to = self._parse_types() +3248 +3249 if not to: +3250 self.raise_error("Expected TYPE after CAST") +3251 elif to.this == exp.DataType.Type.CHAR: +3252 if self._match(TokenType.CHARACTER_SET): +3253 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) +3254 +3255 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) 3256 -3257 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: -3258 to: t.Optional[exp.Expression] -3259 this = self._parse_column() -3260 -3261 if self._match(TokenType.USING): -3262 to = self.expression(exp.CharacterSet, this=self._parse_var()) -3263 elif self._match(TokenType.COMMA): -3264 to = self._parse_types() -3265 else: -3266 to = None -3267 -3268 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) -3269 -3270 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: -3271 args = self._parse_csv(self._parse_bitwise) +3257 def _parse_string_agg(self) -> exp.Expression: +3258 expression: t.Optional[exp.Expression] +3259 +3260 if self._match(TokenType.DISTINCT): +3261 args = self._parse_csv(self._parse_conjunction) +3262 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) +3263 else: +3264 args = self._parse_csv(self._parse_conjunction) +3265 expression = seq_get(args, 0) +3266 +3267 index = self._index +3268 if not self._match(TokenType.R_PAREN): +3269 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) +3270 order = self._parse_order(this=expression) +3271 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) 3272 -3273 if self._match(TokenType.IN): -3274 return self.expression( -3275 exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0) -3276 ) -3277 -3278 if haystack_first: -3279 haystack = seq_get(args, 0) -3280 needle = seq_get(args, 1) -3281 else: -3282 needle = seq_get(args, 0) -3283 haystack = seq_get(args, 1) -3284 -3285 this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2)) -3286 -3287 self.validate_expression(this, args) -3288 -3289 return this -3290 -3291 def _parse_join_hint(self, func_name: str) -> exp.Expression: -3292 args = self._parse_csv(self._parse_table) -3293 return exp.JoinHint(this=func_name.upper(), expressions=args) -3294 -3295 def _parse_substring(self) -> exp.Expression: -3296 # Postgres supports the form: substring(string [from int] [for int]) -3297 # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 +3273 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). +3274 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that +3275 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. +3276 if not self._match(TokenType.WITHIN_GROUP): +3277 self._retreat(index) +3278 this = exp.GroupConcat.from_arg_list(args) +3279 self.validate_expression(this, args) +3280 return this +3281 +3282 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) +3283 order = self._parse_order(this=expression) +3284 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3285 +3286 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: +3287 to: t.Optional[exp.Expression] +3288 this = self._parse_column() +3289 +3290 if self._match(TokenType.USING): +3291 to = self.expression(exp.CharacterSet, this=self._parse_var()) +3292 elif self._match(TokenType.COMMA): +3293 to = self._parse_types() +3294 else: +3295 to = None +3296 +3297 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) 3298 -3299 args = self._parse_csv(self._parse_bitwise) -3300 -3301 if self._match(TokenType.FROM): -3302 args.append(self._parse_bitwise()) -3303 if self._match(TokenType.FOR): -3304 args.append(self._parse_bitwise()) -3305 -3306 this = exp.Substring.from_arg_list(args) -3307 self.validate_expression(this, args) -3308 -3309 return this -3310 -3311 def _parse_trim(self) -> exp.Expression: -3312 # https://www.w3resource.com/sql/character-functions/trim.php -3313 # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html -3314 -3315 position = None -3316 collation = None +3299 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: +3300 args = self._parse_csv(self._parse_bitwise) +3301 +3302 if self._match(TokenType.IN): +3303 return self.expression( +3304 exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0) +3305 ) +3306 +3307 if haystack_first: +3308 haystack = seq_get(args, 0) +3309 needle = seq_get(args, 1) +3310 else: +3311 needle = seq_get(args, 0) +3312 haystack = seq_get(args, 1) +3313 +3314 this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2)) +3315 +3316 self.validate_expression(this, args) 3317 -3318 if self._match_set(self.TRIM_TYPES): -3319 position = self._prev.text.upper() -3320 -3321 expression = self._parse_term() -3322 if self._match_set((TokenType.FROM, TokenType.COMMA)): -3323 this = self._parse_term() -3324 else: -3325 this = expression -3326 expression = None +3318 return this +3319 +3320 def _parse_join_hint(self, func_name: str) -> exp.Expression: +3321 args = self._parse_csv(self._parse_table) +3322 return exp.JoinHint(this=func_name.upper(), expressions=args) +3323 +3324 def _parse_substring(self) -> exp.Expression: +3325 # Postgres supports the form: substring(string [from int] [for int]) +3326 # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 3327 -3328 if self._match(TokenType.COLLATE): -3329 collation = self._parse_term() -3330 -3331 return self.expression( -3332 exp.Trim, -3333 this=this, -3334 position=position, -3335 expression=expression, -3336 collation=collation, -3337 ) -3338 -3339 def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3340 return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window) -3341 -3342 def _parse_named_window(self) -> t.Optional[exp.Expression]: -3343 return self._parse_window(self._parse_id_var(), alias=True) -3344 -3345 def _parse_window( -3346 self, this: t.Optional[exp.Expression], alias: bool = False -3347 ) -> t.Optional[exp.Expression]: -3348 if self._match(TokenType.FILTER): -3349 where = self._parse_wrapped(self._parse_where) -3350 this = self.expression(exp.Filter, this=this, expression=where) -3351 -3352 # T-SQL allows the OVER (...) syntax after WITHIN GROUP. -3353 # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16 -3354 if self._match(TokenType.WITHIN_GROUP): -3355 order = self._parse_wrapped(self._parse_order) -3356 this = self.expression(exp.WithinGroup, this=this, expression=order) -3357 -3358 # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER -3359 # Some dialects choose to implement and some do not. -3360 # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html -3361 -3362 # There is some code above in _parse_lambda that handles -3363 # SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ... -3364 -3365 # The below changes handle -3366 # SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ... +3328 args = self._parse_csv(self._parse_bitwise) +3329 +3330 if self._match(TokenType.FROM): +3331 args.append(self._parse_bitwise()) +3332 if self._match(TokenType.FOR): +3333 args.append(self._parse_bitwise()) +3334 +3335 this = exp.Substring.from_arg_list(args) +3336 self.validate_expression(this, args) +3337 +3338 return this +3339 +3340 def _parse_trim(self) -> exp.Expression: +3341 # https://www.w3resource.com/sql/character-functions/trim.php +3342 # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html +3343 +3344 position = None +3345 collation = None +3346 +3347 if self._match_set(self.TRIM_TYPES): +3348 position = self._prev.text.upper() +3349 +3350 expression = self._parse_term() +3351 if self._match_set((TokenType.FROM, TokenType.COMMA)): +3352 this = self._parse_term() +3353 else: +3354 this = expression +3355 expression = None +3356 +3357 if self._match(TokenType.COLLATE): +3358 collation = self._parse_term() +3359 +3360 return self.expression( +3361 exp.Trim, +3362 this=this, +3363 position=position, +3364 expression=expression, +3365 collation=collation, +3366 ) 3367 -3368 # Oracle allows both formats -3369 # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) -3370 # and Snowflake chose to do the same for familiarity -3371 # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes -3372 if self._match(TokenType.IGNORE_NULLS): -3373 this = self.expression(exp.IgnoreNulls, this=this) -3374 elif self._match(TokenType.RESPECT_NULLS): -3375 this = self.expression(exp.RespectNulls, this=this) -3376 -3377 # bigquery select from window x AS (partition by ...) -3378 if alias: -3379 self._match(TokenType.ALIAS) -3380 elif not self._match(TokenType.OVER): -3381 return this -3382 -3383 if not self._match(TokenType.L_PAREN): -3384 return self.expression(exp.Window, this=this, alias=self._parse_id_var(False)) -3385 -3386 window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS) -3387 partition = self._parse_partition_by() -3388 order = self._parse_order() -3389 kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text +3368 def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3369 return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window) +3370 +3371 def _parse_named_window(self) -> t.Optional[exp.Expression]: +3372 return self._parse_window(self._parse_id_var(), alias=True) +3373 +3374 def _parse_window( +3375 self, this: t.Optional[exp.Expression], alias: bool = False +3376 ) -> t.Optional[exp.Expression]: +3377 if self._match(TokenType.FILTER): +3378 where = self._parse_wrapped(self._parse_where) +3379 this = self.expression(exp.Filter, this=this, expression=where) +3380 +3381 # T-SQL allows the OVER (...) syntax after WITHIN GROUP. +3382 # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16 +3383 if self._match(TokenType.WITHIN_GROUP): +3384 order = self._parse_wrapped(self._parse_order) +3385 this = self.expression(exp.WithinGroup, this=this, expression=order) +3386 +3387 # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER +3388 # Some dialects choose to implement and some do not. +3389 # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html 3390 -3391 if kind: -3392 self._match(TokenType.BETWEEN) -3393 start = self._parse_window_spec() -3394 self._match(TokenType.AND) -3395 end = self._parse_window_spec() +3391 # There is some code above in _parse_lambda that handles +3392 # SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ... +3393 +3394 # The below changes handle +3395 # SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ... 3396 -3397 spec = self.expression( -3398 exp.WindowSpec, -3399 kind=kind, -3400 start=start["value"], -3401 start_side=start["side"], -3402 end=end["value"], -3403 end_side=end["side"], -3404 ) -3405 else: -3406 spec = None -3407 -3408 self._match_r_paren() -3409 -3410 return self.expression( -3411 exp.Window, -3412 this=this, -3413 partition_by=partition, -3414 order=order, -3415 spec=spec, -3416 alias=window_alias, -3417 ) -3418 -3419 def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]: -3420 self._match(TokenType.BETWEEN) -3421 -3422 return { -3423 "value": ( -3424 self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text -3425 ) -3426 or self._parse_bitwise(), -3427 "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text, -3428 } -3429 -3430 def _parse_alias( -3431 self, this: t.Optional[exp.Expression], explicit: bool = False -3432 ) -> t.Optional[exp.Expression]: -3433 any_token = self._match(TokenType.ALIAS) -3434 -3435 if explicit and not any_token: -3436 return this -3437 -3438 if self._match(TokenType.L_PAREN): -3439 aliases = self.expression( -3440 exp.Aliases, -3441 this=this, -3442 expressions=self._parse_csv(lambda: self._parse_id_var(any_token)), -3443 ) -3444 self._match_r_paren(aliases) -3445 return aliases -3446 -3447 alias = self._parse_id_var(any_token) -3448 -3449 if alias: -3450 return self.expression(exp.Alias, this=this, alias=alias) -3451 -3452 return this -3453 -3454 def _parse_id_var( -3455 self, -3456 any_token: bool = True, -3457 tokens: t.Optional[t.Collection[TokenType]] = None, -3458 prefix_tokens: t.Optional[t.Collection[TokenType]] = None, -3459 ) -> t.Optional[exp.Expression]: -3460 identifier = self._parse_identifier() -3461 -3462 if identifier: -3463 return identifier -3464 -3465 prefix = "" +3397 # Oracle allows both formats +3398 # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) +3399 # and Snowflake chose to do the same for familiarity +3400 # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes +3401 if self._match(TokenType.IGNORE_NULLS): +3402 this = self.expression(exp.IgnoreNulls, this=this) +3403 elif self._match(TokenType.RESPECT_NULLS): +3404 this = self.expression(exp.RespectNulls, this=this) +3405 +3406 # bigquery select from window x AS (partition by ...) +3407 if alias: +3408 self._match(TokenType.ALIAS) +3409 elif not self._match(TokenType.OVER): +3410 return this +3411 +3412 if not self._match(TokenType.L_PAREN): +3413 return self.expression(exp.Window, this=this, alias=self._parse_id_var(False)) +3414 +3415 window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS) +3416 partition = self._parse_partition_by() +3417 order = self._parse_order() +3418 kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text +3419 +3420 if kind: +3421 self._match(TokenType.BETWEEN) +3422 start = self._parse_window_spec() +3423 self._match(TokenType.AND) +3424 end = self._parse_window_spec() +3425 +3426 spec = self.expression( +3427 exp.WindowSpec, +3428 kind=kind, +3429 start=start["value"], +3430 start_side=start["side"], +3431 end=end["value"], +3432 end_side=end["side"], +3433 ) +3434 else: +3435 spec = None +3436 +3437 self._match_r_paren() +3438 +3439 return self.expression( +3440 exp.Window, +3441 this=this, +3442 partition_by=partition, +3443 order=order, +3444 spec=spec, +3445 alias=window_alias, +3446 ) +3447 +3448 def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]: +3449 self._match(TokenType.BETWEEN) +3450 +3451 return { +3452 "value": ( +3453 self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text +3454 ) +3455 or self._parse_bitwise(), +3456 "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text, +3457 } +3458 +3459 def _parse_alias( +3460 self, this: t.Optional[exp.Expression], explicit: bool = False +3461 ) -> t.Optional[exp.Expression]: +3462 any_token = self._match(TokenType.ALIAS) +3463 +3464 if explicit and not any_token: +3465 return this 3466 -3467 if prefix_tokens: -3468 while self._match_set(prefix_tokens): -3469 prefix += self._prev.text -3470 -3471 if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS): -3472 quoted = self._prev.token_type == TokenType.STRING -3473 return exp.Identifier(this=prefix + self._prev.text, quoted=quoted) -3474 -3475 return None -3476 -3477 def _parse_string(self) -> t.Optional[exp.Expression]: -3478 if self._match(TokenType.STRING): -3479 return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev) -3480 return self._parse_placeholder() -3481 -3482 def _parse_number(self) -> t.Optional[exp.Expression]: -3483 if self._match(TokenType.NUMBER): -3484 return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev) -3485 return self._parse_placeholder() -3486 -3487 def _parse_identifier(self) -> t.Optional[exp.Expression]: -3488 if self._match(TokenType.IDENTIFIER): -3489 return self.expression(exp.Identifier, this=self._prev.text, quoted=True) -3490 return self._parse_placeholder() -3491 -3492 def _parse_var(self, any_token: bool = False) -> t.Optional[exp.Expression]: -3493 if (any_token and self._advance_any()) or self._match(TokenType.VAR): -3494 return self.expression(exp.Var, this=self._prev.text) -3495 return self._parse_placeholder() -3496 -3497 def _advance_any(self) -> t.Optional[Token]: -3498 if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS: -3499 self._advance() -3500 return self._prev -3501 return None -3502 -3503 def _parse_var_or_string(self) -> t.Optional[exp.Expression]: -3504 return self._parse_var() or self._parse_string() +3467 if self._match(TokenType.L_PAREN): +3468 aliases = self.expression( +3469 exp.Aliases, +3470 this=this, +3471 expressions=self._parse_csv(lambda: self._parse_id_var(any_token)), +3472 ) +3473 self._match_r_paren(aliases) +3474 return aliases +3475 +3476 alias = self._parse_id_var(any_token) +3477 +3478 if alias: +3479 return self.expression(exp.Alias, this=this, alias=alias) +3480 +3481 return this +3482 +3483 def _parse_id_var( +3484 self, +3485 any_token: bool = True, +3486 tokens: t.Optional[t.Collection[TokenType]] = None, +3487 prefix_tokens: t.Optional[t.Collection[TokenType]] = None, +3488 ) -> t.Optional[exp.Expression]: +3489 identifier = self._parse_identifier() +3490 +3491 if identifier: +3492 return identifier +3493 +3494 prefix = "" +3495 +3496 if prefix_tokens: +3497 while self._match_set(prefix_tokens): +3498 prefix += self._prev.text +3499 +3500 if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS): +3501 quoted = self._prev.token_type == TokenType.STRING +3502 return exp.Identifier(this=prefix + self._prev.text, quoted=quoted) +3503 +3504 return None 3505 -3506 def _parse_null(self) -> t.Optional[exp.Expression]: -3507 if self._match(TokenType.NULL): -3508 return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev) -3509 return None +3506 def _parse_string(self) -> t.Optional[exp.Expression]: +3507 if self._match(TokenType.STRING): +3508 return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev) +3509 return self._parse_placeholder() 3510 -3511 def _parse_boolean(self) -> t.Optional[exp.Expression]: -3512 if self._match(TokenType.TRUE): -3513 return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev) -3514 if self._match(TokenType.FALSE): -3515 return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev) -3516 return None -3517 -3518 def _parse_star(self) -> t.Optional[exp.Expression]: -3519 if self._match(TokenType.STAR): -3520 return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev) -3521 return None -3522 -3523 def _parse_parameter(self) -> exp.Expression: -3524 wrapped = self._match(TokenType.L_BRACE) -3525 this = self._parse_var() or self._parse_primary() -3526 self._match(TokenType.R_BRACE) -3527 return self.expression(exp.Parameter, this=this, wrapped=wrapped) -3528 -3529 def _parse_placeholder(self) -> t.Optional[exp.Expression]: -3530 if self._match_set(self.PLACEHOLDER_PARSERS): -3531 placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self) -3532 if placeholder: -3533 return placeholder -3534 self._advance(-1) -3535 return None -3536 -3537 def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3538 if not self._match(TokenType.EXCEPT): -3539 return None -3540 if self._match(TokenType.L_PAREN, advance=False): -3541 return self._parse_wrapped_csv(self._parse_column) -3542 return self._parse_csv(self._parse_column) -3543 -3544 def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3545 if not self._match(TokenType.REPLACE): -3546 return None -3547 if self._match(TokenType.L_PAREN, advance=False): -3548 return self._parse_wrapped_csv(self._parse_expression) -3549 return self._parse_csv(self._parse_expression) -3550 -3551 def _parse_csv( -3552 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA -3553 ) -> t.List[t.Optional[exp.Expression]]: -3554 parse_result = parse_method() -3555 items = [parse_result] if parse_result is not None else [] -3556 -3557 while self._match(sep): -3558 if parse_result and self._prev_comments: -3559 parse_result.comments = self._prev_comments -3560 -3561 parse_result = parse_method() -3562 if parse_result is not None: -3563 items.append(parse_result) -3564 -3565 return items -3566 -3567 def _parse_tokens( -3568 self, parse_method: t.Callable, expressions: t.Dict -3569 ) -> t.Optional[exp.Expression]: -3570 this = parse_method() +3511 def _parse_number(self) -> t.Optional[exp.Expression]: +3512 if self._match(TokenType.NUMBER): +3513 return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev) +3514 return self._parse_placeholder() +3515 +3516 def _parse_identifier(self) -> t.Optional[exp.Expression]: +3517 if self._match(TokenType.IDENTIFIER): +3518 return self.expression(exp.Identifier, this=self._prev.text, quoted=True) +3519 return self._parse_placeholder() +3520 +3521 def _parse_var( +3522 self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None +3523 ) -> t.Optional[exp.Expression]: +3524 if ( +3525 (any_token and self._advance_any()) +3526 or self._match(TokenType.VAR) +3527 or (self._match_set(tokens) if tokens else False) +3528 ): +3529 return self.expression(exp.Var, this=self._prev.text) +3530 return self._parse_placeholder() +3531 +3532 def _advance_any(self) -> t.Optional[Token]: +3533 if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS: +3534 self._advance() +3535 return self._prev +3536 return None +3537 +3538 def _parse_var_or_string(self) -> t.Optional[exp.Expression]: +3539 return self._parse_var() or self._parse_string() +3540 +3541 def _parse_null(self) -> t.Optional[exp.Expression]: +3542 if self._match(TokenType.NULL): +3543 return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev) +3544 return None +3545 +3546 def _parse_boolean(self) -> t.Optional[exp.Expression]: +3547 if self._match(TokenType.TRUE): +3548 return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev) +3549 if self._match(TokenType.FALSE): +3550 return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev) +3551 return None +3552 +3553 def _parse_star(self) -> t.Optional[exp.Expression]: +3554 if self._match(TokenType.STAR): +3555 return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev) +3556 return None +3557 +3558 def _parse_parameter(self) -> exp.Expression: +3559 wrapped = self._match(TokenType.L_BRACE) +3560 this = self._parse_var() or self._parse_primary() +3561 self._match(TokenType.R_BRACE) +3562 return self.expression(exp.Parameter, this=this, wrapped=wrapped) +3563 +3564 def _parse_placeholder(self) -> t.Optional[exp.Expression]: +3565 if self._match_set(self.PLACEHOLDER_PARSERS): +3566 placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self) +3567 if placeholder: +3568 return placeholder +3569 self._advance(-1) +3570 return None 3571 -3572 while self._match_set(expressions): -3573 this = self.expression( -3574 expressions[self._prev.token_type], -3575 this=this, -3576 comments=self._prev_comments, -3577 expression=parse_method(), -3578 ) -3579 -3580 return this -3581 -3582 def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]: -3583 return self._parse_wrapped_csv(self._parse_id_var) -3584 -3585 def _parse_wrapped_csv( -3586 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA -3587 ) -> t.List[t.Optional[exp.Expression]]: -3588 return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep)) -3589 -3590 def _parse_wrapped(self, parse_method: t.Callable) -> t.Any: -3591 self._match_l_paren() -3592 parse_result = parse_method() -3593 self._match_r_paren() -3594 return parse_result +3572 def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3573 if not self._match(TokenType.EXCEPT): +3574 return None +3575 if self._match(TokenType.L_PAREN, advance=False): +3576 return self._parse_wrapped_csv(self._parse_column) +3577 return self._parse_csv(self._parse_column) +3578 +3579 def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3580 if not self._match(TokenType.REPLACE): +3581 return None +3582 if self._match(TokenType.L_PAREN, advance=False): +3583 return self._parse_wrapped_csv(self._parse_expression) +3584 return self._parse_csv(self._parse_expression) +3585 +3586 def _parse_csv( +3587 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA +3588 ) -> t.List[t.Optional[exp.Expression]]: +3589 parse_result = parse_method() +3590 items = [parse_result] if parse_result is not None else [] +3591 +3592 while self._match(sep): +3593 if parse_result and self._prev_comments: +3594 parse_result.comments = self._prev_comments 3595 -3596 def _parse_select_or_expression(self) -> t.Optional[exp.Expression]: -3597 return self._parse_select() or self._parse_expression() -3598 -3599 def _parse_ddl_select(self) -> t.Optional[exp.Expression]: -3600 return self._parse_set_operations( -3601 self._parse_select(nested=True, parse_subquery_alias=False) -3602 ) -3603 -3604 def _parse_transaction(self) -> exp.Expression: -3605 this = None -3606 if self._match_texts(self.TRANSACTION_KIND): -3607 this = self._prev.text -3608 -3609 self._match_texts({"TRANSACTION", "WORK"}) -3610 -3611 modes = [] -3612 while True: -3613 mode = [] -3614 while self._match(TokenType.VAR): -3615 mode.append(self._prev.text) +3596 parse_result = parse_method() +3597 if parse_result is not None: +3598 items.append(parse_result) +3599 +3600 return items +3601 +3602 def _parse_tokens( +3603 self, parse_method: t.Callable, expressions: t.Dict +3604 ) -> t.Optional[exp.Expression]: +3605 this = parse_method() +3606 +3607 while self._match_set(expressions): +3608 this = self.expression( +3609 expressions[self._prev.token_type], +3610 this=this, +3611 comments=self._prev_comments, +3612 expression=parse_method(), +3613 ) +3614 +3615 return this 3616 -3617 if mode: -3618 modes.append(" ".join(mode)) -3619 if not self._match(TokenType.COMMA): -3620 break -3621 -3622 return self.expression(exp.Transaction, this=this, modes=modes) -3623 -3624 def _parse_commit_or_rollback(self) -> exp.Expression: -3625 chain = None -3626 savepoint = None -3627 is_rollback = self._prev.token_type == TokenType.ROLLBACK -3628 -3629 self._match_texts({"TRANSACTION", "WORK"}) +3617 def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]: +3618 return self._parse_wrapped_csv(self._parse_id_var) +3619 +3620 def _parse_wrapped_csv( +3621 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA +3622 ) -> t.List[t.Optional[exp.Expression]]: +3623 return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep)) +3624 +3625 def _parse_wrapped(self, parse_method: t.Callable) -> t.Any: +3626 self._match_l_paren() +3627 parse_result = parse_method() +3628 self._match_r_paren() +3629 return parse_result 3630 -3631 if self._match_text_seq("TO"): -3632 self._match_text_seq("SAVEPOINT") -3633 savepoint = self._parse_id_var() -3634 -3635 if self._match(TokenType.AND): -3636 chain = not self._match_text_seq("NO") -3637 self._match_text_seq("CHAIN") +3631 def _parse_select_or_expression(self) -> t.Optional[exp.Expression]: +3632 return self._parse_select() or self._parse_expression() +3633 +3634 def _parse_ddl_select(self) -> t.Optional[exp.Expression]: +3635 return self._parse_set_operations( +3636 self._parse_select(nested=True, parse_subquery_alias=False) +3637 ) 3638 -3639 if is_rollback: -3640 return self.expression(exp.Rollback, savepoint=savepoint) -3641 return self.expression(exp.Commit, chain=chain) -3642 -3643 def _parse_add_column(self) -> t.Optional[exp.Expression]: -3644 if not self._match_text_seq("ADD"): -3645 return None -3646 -3647 self._match(TokenType.COLUMN) -3648 exists_column = self._parse_exists(not_=True) -3649 expression = self._parse_column_def(self._parse_field(any_token=True)) -3650 -3651 if expression: -3652 expression.set("exists", exists_column) -3653 -3654 return expression -3655 -3656 def _parse_drop_column(self) -> t.Optional[exp.Expression]: -3657 return self._match(TokenType.DROP) and self._parse_drop(default_kind="COLUMN") +3639 def _parse_transaction(self) -> exp.Expression: +3640 this = None +3641 if self._match_texts(self.TRANSACTION_KIND): +3642 this = self._prev.text +3643 +3644 self._match_texts({"TRANSACTION", "WORK"}) +3645 +3646 modes = [] +3647 while True: +3648 mode = [] +3649 while self._match(TokenType.VAR): +3650 mode.append(self._prev.text) +3651 +3652 if mode: +3653 modes.append(" ".join(mode)) +3654 if not self._match(TokenType.COMMA): +3655 break +3656 +3657 return self.expression(exp.Transaction, this=this, modes=modes) 3658 -3659 # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html -3660 def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression: -3661 return self.expression( -3662 exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists -3663 ) -3664 -3665 def _parse_add_constraint(self) -> t.Optional[exp.Expression]: -3666 this = None -3667 kind = self._prev.token_type -3668 -3669 if kind == TokenType.CONSTRAINT: -3670 this = self._parse_id_var() -3671 -3672 if self._match_text_seq("CHECK"): -3673 expression = self._parse_wrapped(self._parse_conjunction) -3674 enforced = self._match_text_seq("ENFORCED") -3675 -3676 return self.expression( -3677 exp.AddConstraint, this=this, expression=expression, enforced=enforced -3678 ) -3679 -3680 if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY): -3681 expression = self._parse_foreign_key() -3682 elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY): -3683 expression = self._parse_primary_key() -3684 -3685 return self.expression(exp.AddConstraint, this=this, expression=expression) -3686 -3687 def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]: -3688 index = self._index - 1 -3689 -3690 if self._match_set(self.ADD_CONSTRAINT_TOKENS): -3691 return self._parse_csv(self._parse_add_constraint) -3692 -3693 self._retreat(index) -3694 return self._parse_csv(self._parse_add_column) -3695 -3696 def _parse_alter_table_alter(self) -> exp.Expression: -3697 self._match(TokenType.COLUMN) -3698 column = self._parse_field(any_token=True) +3659 def _parse_commit_or_rollback(self) -> exp.Expression: +3660 chain = None +3661 savepoint = None +3662 is_rollback = self._prev.token_type == TokenType.ROLLBACK +3663 +3664 self._match_texts({"TRANSACTION", "WORK"}) +3665 +3666 if self._match_text_seq("TO"): +3667 self._match_text_seq("SAVEPOINT") +3668 savepoint = self._parse_id_var() +3669 +3670 if self._match(TokenType.AND): +3671 chain = not self._match_text_seq("NO") +3672 self._match_text_seq("CHAIN") +3673 +3674 if is_rollback: +3675 return self.expression(exp.Rollback, savepoint=savepoint) +3676 return self.expression(exp.Commit, chain=chain) +3677 +3678 def _parse_add_column(self) -> t.Optional[exp.Expression]: +3679 if not self._match_text_seq("ADD"): +3680 return None +3681 +3682 self._match(TokenType.COLUMN) +3683 exists_column = self._parse_exists(not_=True) +3684 expression = self._parse_column_def(self._parse_field(any_token=True)) +3685 +3686 if expression: +3687 expression.set("exists", exists_column) +3688 +3689 return expression +3690 +3691 def _parse_drop_column(self) -> t.Optional[exp.Expression]: +3692 return self._match(TokenType.DROP) and self._parse_drop(default_kind="COLUMN") +3693 +3694 # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html +3695 def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression: +3696 return self.expression( +3697 exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists +3698 ) 3699 -3700 if self._match_pair(TokenType.DROP, TokenType.DEFAULT): -3701 return self.expression(exp.AlterColumn, this=column, drop=True) -3702 if self._match_pair(TokenType.SET, TokenType.DEFAULT): -3703 return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction()) -3704 -3705 self._match_text_seq("SET", "DATA") -3706 return self.expression( -3707 exp.AlterColumn, -3708 this=column, -3709 dtype=self._match_text_seq("TYPE") and self._parse_types(), -3710 collate=self._match(TokenType.COLLATE) and self._parse_term(), -3711 using=self._match(TokenType.USING) and self._parse_conjunction(), -3712 ) -3713 -3714 def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]: -3715 index = self._index - 1 -3716 -3717 partition_exists = self._parse_exists() -3718 if self._match(TokenType.PARTITION, advance=False): -3719 return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists)) -3720 -3721 self._retreat(index) -3722 return self._parse_csv(self._parse_drop_column) -3723 -3724 def _parse_alter_table_rename(self) -> exp.Expression: -3725 self._match_text_seq("TO") -3726 return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) +3700 def _parse_add_constraint(self) -> t.Optional[exp.Expression]: +3701 this = None +3702 kind = self._prev.token_type +3703 +3704 if kind == TokenType.CONSTRAINT: +3705 this = self._parse_id_var() +3706 +3707 if self._match_text_seq("CHECK"): +3708 expression = self._parse_wrapped(self._parse_conjunction) +3709 enforced = self._match_text_seq("ENFORCED") +3710 +3711 return self.expression( +3712 exp.AddConstraint, this=this, expression=expression, enforced=enforced +3713 ) +3714 +3715 if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY): +3716 expression = self._parse_foreign_key() +3717 elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY): +3718 expression = self._parse_primary_key() +3719 +3720 return self.expression(exp.AddConstraint, this=this, expression=expression) +3721 +3722 def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]: +3723 index = self._index - 1 +3724 +3725 if self._match_set(self.ADD_CONSTRAINT_TOKENS): +3726 return self._parse_csv(self._parse_add_constraint) 3727 -3728 def _parse_alter(self) -> t.Optional[exp.Expression]: -3729 if not self._match(TokenType.TABLE): -3730 return self._parse_as_command(self._prev) -3731 -3732 exists = self._parse_exists() -3733 this = self._parse_table(schema=True) +3728 self._retreat(index) +3729 return self._parse_csv(self._parse_add_column) +3730 +3731 def _parse_alter_table_alter(self) -> exp.Expression: +3732 self._match(TokenType.COLUMN) +3733 column = self._parse_field(any_token=True) 3734 -3735 if not self._curr: -3736 return None -3737 -3738 parser = self.ALTER_PARSERS.get(self._curr.text.upper()) -3739 actions = ensure_list(self._advance() or parser(self)) if parser else [] # type: ignore -3740 -3741 return self.expression(exp.AlterTable, this=this, exists=exists, actions=actions) -3742 -3743 def _parse_show(self) -> t.Optional[exp.Expression]: -3744 parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore -3745 if parser: -3746 return parser(self) -3747 self._advance() -3748 return self.expression(exp.Show, this=self._prev.text.upper()) -3749 -3750 def _default_parse_set_item(self) -> exp.Expression: -3751 return self.expression( -3752 exp.SetItem, -3753 this=self._parse_statement(), -3754 ) +3735 if self._match_pair(TokenType.DROP, TokenType.DEFAULT): +3736 return self.expression(exp.AlterColumn, this=column, drop=True) +3737 if self._match_pair(TokenType.SET, TokenType.DEFAULT): +3738 return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction()) +3739 +3740 self._match_text_seq("SET", "DATA") +3741 return self.expression( +3742 exp.AlterColumn, +3743 this=column, +3744 dtype=self._match_text_seq("TYPE") and self._parse_types(), +3745 collate=self._match(TokenType.COLLATE) and self._parse_term(), +3746 using=self._match(TokenType.USING) and self._parse_conjunction(), +3747 ) +3748 +3749 def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]: +3750 index = self._index - 1 +3751 +3752 partition_exists = self._parse_exists() +3753 if self._match(TokenType.PARTITION, advance=False): +3754 return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists)) 3755 -3756 def _parse_set_item(self) -> t.Optional[exp.Expression]: -3757 parser = self._find_parser(self.SET_PARSERS, self._set_trie) # type: ignore -3758 return parser(self) if parser else self._default_parse_set_item() -3759 -3760 def _parse_merge(self) -> exp.Expression: -3761 self._match(TokenType.INTO) -3762 target = self._parse_table() -3763 -3764 self._match(TokenType.USING) -3765 using = self._parse_table() -3766 -3767 self._match(TokenType.ON) -3768 on = self._parse_conjunction() -3769 -3770 whens = [] -3771 while self._match(TokenType.WHEN): -3772 this = self._parse_conjunction() -3773 self._match(TokenType.THEN) -3774 -3775 if self._match(TokenType.INSERT): -3776 _this = self._parse_star() -3777 if _this: -3778 then = self.expression(exp.Insert, this=_this) -3779 else: -3780 then = self.expression( -3781 exp.Insert, -3782 this=self._parse_value(), -3783 expression=self._match(TokenType.VALUES) and self._parse_value(), -3784 ) -3785 elif self._match(TokenType.UPDATE): -3786 expressions = self._parse_star() -3787 if expressions: -3788 then = self.expression(exp.Update, expressions=expressions) -3789 else: -3790 then = self.expression( -3791 exp.Update, -3792 expressions=self._match(TokenType.SET) -3793 and self._parse_csv(self._parse_equality), -3794 ) -3795 elif self._match(TokenType.DELETE): -3796 then = self.expression(exp.Var, this=self._prev.text) +3756 self._retreat(index) +3757 return self._parse_csv(self._parse_drop_column) +3758 +3759 def _parse_alter_table_rename(self) -> exp.Expression: +3760 self._match_text_seq("TO") +3761 return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) +3762 +3763 def _parse_alter(self) -> t.Optional[exp.Expression]: +3764 start = self._prev +3765 +3766 if not self._match(TokenType.TABLE): +3767 return self._parse_as_command(start) +3768 +3769 exists = self._parse_exists() +3770 this = self._parse_table(schema=True) +3771 +3772 if self._next: +3773 self._advance() +3774 parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None +3775 +3776 if parser: +3777 return self.expression( +3778 exp.AlterTable, +3779 this=this, +3780 exists=exists, +3781 actions=ensure_list(parser(self)), +3782 ) +3783 return self._parse_as_command(start) +3784 +3785 def _parse_show(self) -> t.Optional[exp.Expression]: +3786 parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore +3787 if parser: +3788 return parser(self) +3789 self._advance() +3790 return self.expression(exp.Show, this=self._prev.text.upper()) +3791 +3792 def _default_parse_set_item(self) -> exp.Expression: +3793 return self.expression( +3794 exp.SetItem, +3795 this=self._parse_statement(), +3796 ) 3797 -3798 whens.append(self.expression(exp.When, this=this, then=then)) -3799 -3800 return self.expression( -3801 exp.Merge, -3802 this=target, -3803 using=using, -3804 on=on, -3805 expressions=whens, -3806 ) -3807 -3808 def _parse_set(self) -> exp.Expression: -3809 return self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item)) -3810 -3811 def _parse_as_command(self, start: Token) -> exp.Command: -3812 while self._curr: -3813 self._advance() -3814 text = self._find_sql(start, self._prev) -3815 size = len(start.text) -3816 return exp.Command(this=text[:size], expression=text[size:]) -3817 -3818 def _find_parser( -3819 self, parsers: t.Dict[str, t.Callable], trie: t.Dict -3820 ) -> t.Optional[t.Callable]: -3821 index = self._index -3822 this = [] -3823 while True: -3824 # The current token might be multiple words -3825 curr = self._curr.text.upper() -3826 key = curr.split(" ") -3827 this.append(curr) -3828 self._advance() -3829 result, trie = in_trie(trie, key) -3830 if result == 0: -3831 break -3832 if result == 2: -3833 subparser = parsers[" ".join(this)] -3834 return subparser -3835 self._retreat(index) -3836 return None -3837 -3838 def _match(self, token_type, advance=True): -3839 if not self._curr: -3840 return None -3841 -3842 if self._curr.token_type == token_type: -3843 if advance: -3844 self._advance() -3845 return True -3846 -3847 return None -3848 -3849 def _match_set(self, types, advance=True): -3850 if not self._curr: -3851 return None -3852 -3853 if self._curr.token_type in types: -3854 if advance: -3855 self._advance() -3856 return True -3857 -3858 return None +3798 def _parse_set_item(self) -> t.Optional[exp.Expression]: +3799 parser = self._find_parser(self.SET_PARSERS, self._set_trie) # type: ignore +3800 return parser(self) if parser else self._default_parse_set_item() +3801 +3802 def _parse_merge(self) -> exp.Expression: +3803 self._match(TokenType.INTO) +3804 target = self._parse_table() +3805 +3806 self._match(TokenType.USING) +3807 using = self._parse_table() +3808 +3809 self._match(TokenType.ON) +3810 on = self._parse_conjunction() +3811 +3812 whens = [] +3813 while self._match(TokenType.WHEN): +3814 matched = not self._match(TokenType.NOT) +3815 self._match_text_seq("MATCHED") +3816 source = ( +3817 False +3818 if self._match_text_seq("BY", "TARGET") +3819 else self._match_text_seq("BY", "SOURCE") +3820 ) +3821 condition = self._parse_conjunction() if self._match(TokenType.AND) else None +3822 +3823 self._match(TokenType.THEN) +3824 +3825 if self._match(TokenType.INSERT): +3826 _this = self._parse_star() +3827 if _this: +3828 then = self.expression(exp.Insert, this=_this) +3829 else: +3830 then = self.expression( +3831 exp.Insert, +3832 this=self._parse_value(), +3833 expression=self._match(TokenType.VALUES) and self._parse_value(), +3834 ) +3835 elif self._match(TokenType.UPDATE): +3836 expressions = self._parse_star() +3837 if expressions: +3838 then = self.expression(exp.Update, expressions=expressions) +3839 else: +3840 then = self.expression( +3841 exp.Update, +3842 expressions=self._match(TokenType.SET) +3843 and self._parse_csv(self._parse_equality), +3844 ) +3845 elif self._match(TokenType.DELETE): +3846 then = self.expression(exp.Var, this=self._prev.text) +3847 else: +3848 then = None +3849 +3850 whens.append( +3851 self.expression( +3852 exp.When, +3853 matched=matched, +3854 source=source, +3855 condition=condition, +3856 then=then, +3857 ) +3858 ) 3859 -3860 def _match_pair(self, token_type_a, token_type_b, advance=True): -3861 if not self._curr or not self._next: -3862 return None -3863 -3864 if self._curr.token_type == token_type_a and self._next.token_type == token_type_b: -3865 if advance: -3866 self._advance(2) -3867 return True -3868 -3869 return None +3860 return self.expression( +3861 exp.Merge, +3862 this=target, +3863 using=using, +3864 on=on, +3865 expressions=whens, +3866 ) +3867 +3868 def _parse_set(self) -> exp.Expression: +3869 return self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item)) 3870 -3871 def _match_l_paren(self, expression=None): -3872 if not self._match(TokenType.L_PAREN): -3873 self.raise_error("Expecting (") -3874 if expression and self._prev_comments: -3875 expression.comments = self._prev_comments -3876 -3877 def _match_r_paren(self, expression=None): -3878 if not self._match(TokenType.R_PAREN): -3879 self.raise_error("Expecting )") -3880 if expression and self._prev_comments: -3881 expression.comments = self._prev_comments -3882 -3883 def _match_texts(self, texts, advance=True): -3884 if self._curr and self._curr.text.upper() in texts: -3885 if advance: -3886 self._advance() -3887 return True -3888 return False -3889 -3890 def _match_text_seq(self, *texts, advance=True): -3891 index = self._index -3892 for text in texts: -3893 if self._curr and self._curr.text.upper() == text: -3894 self._advance() -3895 else: -3896 self._retreat(index) -3897 return False -3898 -3899 if not advance: -3900 self._retreat(index) +3871 def _parse_as_command(self, start: Token) -> exp.Command: +3872 while self._curr: +3873 self._advance() +3874 text = self._find_sql(start, self._prev) +3875 size = len(start.text) +3876 return exp.Command(this=text[:size], expression=text[size:]) +3877 +3878 def _find_parser( +3879 self, parsers: t.Dict[str, t.Callable], trie: t.Dict +3880 ) -> t.Optional[t.Callable]: +3881 index = self._index +3882 this = [] +3883 while True: +3884 # The current token might be multiple words +3885 curr = self._curr.text.upper() +3886 key = curr.split(" ") +3887 this.append(curr) +3888 self._advance() +3889 result, trie = in_trie(trie, key) +3890 if result == 0: +3891 break +3892 if result == 2: +3893 subparser = parsers[" ".join(this)] +3894 return subparser +3895 self._retreat(index) +3896 return None +3897 +3898 def _match(self, token_type, advance=True): +3899 if not self._curr: +3900 return None 3901 -3902 return True -3903 -3904 def _replace_columns_with_dots(self, this): -3905 if isinstance(this, exp.Dot): -3906 exp.replace_children(this, self._replace_columns_with_dots) -3907 elif isinstance(this, exp.Column): -3908 exp.replace_children(this, self._replace_columns_with_dots) -3909 table = this.args.get("table") -3910 this = ( -3911 self.expression(exp.Dot, this=table, expression=this.this) -3912 if table -3913 else self.expression(exp.Var, this=this.name) -3914 ) -3915 elif isinstance(this, exp.Identifier): -3916 this = self.expression(exp.Var, this=this.name) -3917 return this -3918 -3919 def _replace_lambda(self, node, lambda_variables): -3920 if isinstance(node, exp.Column): -3921 if node.name in lambda_variables: -3922 return node.this -3923 return node +3902 if self._curr.token_type == token_type: +3903 if advance: +3904 self._advance() +3905 return True +3906 +3907 return None +3908 +3909 def _match_set(self, types, advance=True): +3910 if not self._curr: +3911 return None +3912 +3913 if self._curr.token_type in types: +3914 if advance: +3915 self._advance() +3916 return True +3917 +3918 return None +3919 +3920 def _match_pair(self, token_type_a, token_type_b, advance=True): +3921 if not self._curr or not self._next: +3922 return None +3923 +3924 if self._curr.token_type == token_type_a and self._next.token_type == token_type_b: +3925 if advance: +3926 self._advance(2) +3927 return True +3928 +3929 return None +3930 +3931 def _match_l_paren(self, expression=None): +3932 if not self._match(TokenType.L_PAREN): +3933 self.raise_error("Expecting (") +3934 if expression and self._prev_comments: +3935 expression.comments = self._prev_comments +3936 +3937 def _match_r_paren(self, expression=None): +3938 if not self._match(TokenType.R_PAREN): +3939 self.raise_error("Expecting )") +3940 if expression and self._prev_comments: +3941 expression.comments = self._prev_comments +3942 +3943 def _match_texts(self, texts, advance=True): +3944 if self._curr and self._curr.text.upper() in texts: +3945 if advance: +3946 self._advance() +3947 return True +3948 return False +3949 +3950 def _match_text_seq(self, *texts, advance=True): +3951 index = self._index +3952 for text in texts: +3953 if self._curr and self._curr.text.upper() == text: +3954 self._advance() +3955 else: +3956 self._retreat(index) +3957 return False +3958 +3959 if not advance: +3960 self._retreat(index) +3961 +3962 return True +3963 +3964 def _replace_columns_with_dots(self, this): +3965 if isinstance(this, exp.Dot): +3966 exp.replace_children(this, self._replace_columns_with_dots) +3967 elif isinstance(this, exp.Column): +3968 exp.replace_children(this, self._replace_columns_with_dots) +3969 table = this.args.get("table") +3970 this = ( +3971 self.expression(exp.Dot, this=table, expression=this.this) +3972 if table +3973 else self.expression(exp.Var, this=this.name) +3974 ) +3975 elif isinstance(this, exp.Identifier): +3976 this = self.expression(exp.Var, this=this.name) +3977 return this +3978 +3979 def _replace_lambda(self, node, lambda_variables): +3980 if isinstance(node, exp.Column): +3981 if node.name in lambda_variables: +3982 return node.this +3983 return node
    @@ -4051,3888 +4111,3944 @@ -
      43class Parser(metaclass=_Parser):
    -  44    """
    -  45    Parser consumes a list of tokens produced by the `sqlglot.tokens.Tokenizer` and produces
    -  46    a parsed syntax tree.
    -  47
    -  48    Args:
    -  49        error_level: the desired error level.
    -  50            Default: ErrorLevel.RAISE
    -  51        error_message_context: determines the amount of context to capture from a
    -  52            query string when displaying the error message (in number of characters).
    -  53            Default: 50.
    -  54        index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.
    -  55            Default: 0
    -  56        alias_post_tablesample: If the table alias comes after tablesample.
    -  57            Default: False
    -  58        max_errors: Maximum number of error messages to include in a raised ParseError.
    -  59            This is only relevant if error_level is ErrorLevel.RAISE.
    -  60            Default: 3
    -  61        null_ordering: Indicates the default null ordering method to use if not explicitly set.
    -  62            Options are "nulls_are_small", "nulls_are_large", "nulls_are_last".
    -  63            Default: "nulls_are_small"
    -  64    """
    -  65
    -  66    FUNCTIONS: t.Dict[str, t.Callable] = {
    -  67        **{name: f.from_arg_list for f in exp.ALL_FUNCTIONS for name in f.sql_names()},
    -  68        "DATE_TO_DATE_STR": lambda args: exp.Cast(
    -  69            this=seq_get(args, 0),
    -  70            to=exp.DataType(this=exp.DataType.Type.TEXT),
    -  71        ),
    -  72        "TIME_TO_TIME_STR": lambda args: exp.Cast(
    +            
      47class Parser(metaclass=_Parser):
    +  48    """
    +  49    Parser consumes a list of tokens produced by the `sqlglot.tokens.Tokenizer` and produces
    +  50    a parsed syntax tree.
    +  51
    +  52    Args:
    +  53        error_level: the desired error level.
    +  54            Default: ErrorLevel.RAISE
    +  55        error_message_context: determines the amount of context to capture from a
    +  56            query string when displaying the error message (in number of characters).
    +  57            Default: 50.
    +  58        index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.
    +  59            Default: 0
    +  60        alias_post_tablesample: If the table alias comes after tablesample.
    +  61            Default: False
    +  62        max_errors: Maximum number of error messages to include in a raised ParseError.
    +  63            This is only relevant if error_level is ErrorLevel.RAISE.
    +  64            Default: 3
    +  65        null_ordering: Indicates the default null ordering method to use if not explicitly set.
    +  66            Options are "nulls_are_small", "nulls_are_large", "nulls_are_last".
    +  67            Default: "nulls_are_small"
    +  68    """
    +  69
    +  70    FUNCTIONS: t.Dict[str, t.Callable] = {
    +  71        **{name: f.from_arg_list for f in exp.ALL_FUNCTIONS for name in f.sql_names()},
    +  72        "DATE_TO_DATE_STR": lambda args: exp.Cast(
       73            this=seq_get(args, 0),
       74            to=exp.DataType(this=exp.DataType.Type.TEXT),
       75        ),
    -  76        "TS_OR_DS_TO_DATE_STR": lambda args: exp.Substring(
    -  77            this=exp.Cast(
    -  78                this=seq_get(args, 0),
    -  79                to=exp.DataType(this=exp.DataType.Type.TEXT),
    -  80            ),
    -  81            start=exp.Literal.number(1),
    -  82            length=exp.Literal.number(10),
    -  83        ),
    -  84        "VAR_MAP": parse_var_map,
    -  85        "IFNULL": exp.Coalesce.from_arg_list,
    -  86    }
    -  87
    -  88    NO_PAREN_FUNCTIONS = {
    -  89        TokenType.CURRENT_DATE: exp.CurrentDate,
    -  90        TokenType.CURRENT_DATETIME: exp.CurrentDate,
    -  91        TokenType.CURRENT_TIMESTAMP: exp.CurrentTimestamp,
    -  92    }
    -  93
    -  94    NESTED_TYPE_TOKENS = {
    -  95        TokenType.ARRAY,
    -  96        TokenType.MAP,
    -  97        TokenType.STRUCT,
    -  98        TokenType.NULLABLE,
    -  99    }
    - 100
    - 101    TYPE_TOKENS = {
    - 102        TokenType.BOOLEAN,
    - 103        TokenType.TINYINT,
    - 104        TokenType.SMALLINT,
    - 105        TokenType.INT,
    - 106        TokenType.BIGINT,
    - 107        TokenType.FLOAT,
    - 108        TokenType.DOUBLE,
    - 109        TokenType.CHAR,
    - 110        TokenType.NCHAR,
    - 111        TokenType.VARCHAR,
    - 112        TokenType.NVARCHAR,
    - 113        TokenType.TEXT,
    - 114        TokenType.MEDIUMTEXT,
    - 115        TokenType.LONGTEXT,
    - 116        TokenType.MEDIUMBLOB,
    - 117        TokenType.LONGBLOB,
    - 118        TokenType.BINARY,
    - 119        TokenType.VARBINARY,
    - 120        TokenType.JSON,
    - 121        TokenType.JSONB,
    - 122        TokenType.INTERVAL,
    - 123        TokenType.TIME,
    - 124        TokenType.TIMESTAMP,
    - 125        TokenType.TIMESTAMPTZ,
    - 126        TokenType.TIMESTAMPLTZ,
    - 127        TokenType.DATETIME,
    - 128        TokenType.DATE,
    - 129        TokenType.DECIMAL,
    - 130        TokenType.UUID,
    - 131        TokenType.GEOGRAPHY,
    - 132        TokenType.GEOMETRY,
    - 133        TokenType.HLLSKETCH,
    - 134        TokenType.HSTORE,
    - 135        TokenType.PSEUDO_TYPE,
    - 136        TokenType.SUPER,
    - 137        TokenType.SERIAL,
    - 138        TokenType.SMALLSERIAL,
    - 139        TokenType.BIGSERIAL,
    - 140        TokenType.XML,
    - 141        TokenType.UNIQUEIDENTIFIER,
    - 142        TokenType.MONEY,
    - 143        TokenType.SMALLMONEY,
    - 144        TokenType.ROWVERSION,
    - 145        TokenType.IMAGE,
    - 146        TokenType.VARIANT,
    - 147        TokenType.OBJECT,
    - 148        TokenType.INET,
    - 149        *NESTED_TYPE_TOKENS,
    - 150    }
    - 151
    - 152    SUBQUERY_PREDICATES = {
    - 153        TokenType.ANY: exp.Any,
    - 154        TokenType.ALL: exp.All,
    - 155        TokenType.EXISTS: exp.Exists,
    - 156        TokenType.SOME: exp.Any,
    - 157    }
    - 158
    - 159    RESERVED_KEYWORDS = {*Tokenizer.SINGLE_TOKENS.values(), TokenType.SELECT}
    - 160
    - 161    DB_CREATABLES = {
    - 162        TokenType.DATABASE,
    - 163        TokenType.SCHEMA,
    - 164        TokenType.TABLE,
    - 165        TokenType.VIEW,
    - 166    }
    - 167
    - 168    CREATABLES = {
    - 169        TokenType.COLUMN,
    - 170        TokenType.FUNCTION,
    - 171        TokenType.INDEX,
    - 172        TokenType.PROCEDURE,
    - 173        *DB_CREATABLES,
    - 174    }
    - 175
    - 176    ID_VAR_TOKENS = {
    - 177        TokenType.VAR,
    - 178        TokenType.ANTI,
    - 179        TokenType.APPLY,
    - 180        TokenType.AUTO_INCREMENT,
    - 181        TokenType.BEGIN,
    - 182        TokenType.BOTH,
    - 183        TokenType.BUCKET,
    - 184        TokenType.CACHE,
    - 185        TokenType.CASCADE,
    - 186        TokenType.COLLATE,
    - 187        TokenType.COMMAND,
    - 188        TokenType.COMMENT,
    - 189        TokenType.COMMIT,
    - 190        TokenType.COMPOUND,
    - 191        TokenType.CONSTRAINT,
    - 192        TokenType.CURRENT_TIME,
    - 193        TokenType.DEFAULT,
    - 194        TokenType.DELETE,
    - 195        TokenType.DESCRIBE,
    - 196        TokenType.DIV,
    - 197        TokenType.END,
    - 198        TokenType.EXECUTE,
    - 199        TokenType.ESCAPE,
    - 200        TokenType.FALSE,
    - 201        TokenType.FIRST,
    - 202        TokenType.FILTER,
    - 203        TokenType.FOLLOWING,
    - 204        TokenType.FORMAT,
    - 205        TokenType.IF,
    - 206        TokenType.ISNULL,
    - 207        TokenType.INTERVAL,
    - 208        TokenType.LAZY,
    - 209        TokenType.LEADING,
    - 210        TokenType.LEFT,
    - 211        TokenType.LOCAL,
    - 212        TokenType.MATERIALIZED,
    - 213        TokenType.MERGE,
    - 214        TokenType.NATURAL,
    - 215        TokenType.NEXT,
    - 216        TokenType.OFFSET,
    - 217        TokenType.ONLY,
    - 218        TokenType.OPTIONS,
    - 219        TokenType.ORDINALITY,
    - 220        TokenType.PERCENT,
    - 221        TokenType.PIVOT,
    - 222        TokenType.PRECEDING,
    - 223        TokenType.RANGE,
    - 224        TokenType.REFERENCES,
    - 225        TokenType.RIGHT,
    - 226        TokenType.ROW,
    - 227        TokenType.ROWS,
    - 228        TokenType.SEED,
    - 229        TokenType.SEMI,
    - 230        TokenType.SET,
    - 231        TokenType.SHOW,
    - 232        TokenType.SORTKEY,
    - 233        TokenType.TEMPORARY,
    - 234        TokenType.TOP,
    - 235        TokenType.TRAILING,
    - 236        TokenType.TRUE,
    - 237        TokenType.UNBOUNDED,
    - 238        TokenType.UNIQUE,
    - 239        TokenType.UNLOGGED,
    - 240        TokenType.UNPIVOT,
    - 241        TokenType.VOLATILE,
    - 242        TokenType.WINDOW,
    - 243        *CREATABLES,
    - 244        *SUBQUERY_PREDICATES,
    - 245        *TYPE_TOKENS,
    - 246        *NO_PAREN_FUNCTIONS,
    - 247    }
    - 248
    - 249    TABLE_ALIAS_TOKENS = ID_VAR_TOKENS - {
    - 250        TokenType.APPLY,
    - 251        TokenType.LEFT,
    - 252        TokenType.NATURAL,
    - 253        TokenType.OFFSET,
    - 254        TokenType.RIGHT,
    - 255        TokenType.WINDOW,
    - 256    }
    - 257
    - 258    UPDATE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.SET}
    - 259
    - 260    TRIM_TYPES = {TokenType.LEADING, TokenType.TRAILING, TokenType.BOTH}
    +  76        "TIME_TO_TIME_STR": lambda args: exp.Cast(
    +  77            this=seq_get(args, 0),
    +  78            to=exp.DataType(this=exp.DataType.Type.TEXT),
    +  79        ),
    +  80        "TS_OR_DS_TO_DATE_STR": lambda args: exp.Substring(
    +  81            this=exp.Cast(
    +  82                this=seq_get(args, 0),
    +  83                to=exp.DataType(this=exp.DataType.Type.TEXT),
    +  84            ),
    +  85            start=exp.Literal.number(1),
    +  86            length=exp.Literal.number(10),
    +  87        ),
    +  88        "VAR_MAP": parse_var_map,
    +  89        "IFNULL": exp.Coalesce.from_arg_list,
    +  90    }
    +  91
    +  92    NO_PAREN_FUNCTIONS = {
    +  93        TokenType.CURRENT_DATE: exp.CurrentDate,
    +  94        TokenType.CURRENT_DATETIME: exp.CurrentDate,
    +  95        TokenType.CURRENT_TIMESTAMP: exp.CurrentTimestamp,
    +  96    }
    +  97
    +  98    NESTED_TYPE_TOKENS = {
    +  99        TokenType.ARRAY,
    + 100        TokenType.MAP,
    + 101        TokenType.STRUCT,
    + 102        TokenType.NULLABLE,
    + 103    }
    + 104
    + 105    TYPE_TOKENS = {
    + 106        TokenType.BOOLEAN,
    + 107        TokenType.TINYINT,
    + 108        TokenType.SMALLINT,
    + 109        TokenType.INT,
    + 110        TokenType.BIGINT,
    + 111        TokenType.FLOAT,
    + 112        TokenType.DOUBLE,
    + 113        TokenType.CHAR,
    + 114        TokenType.NCHAR,
    + 115        TokenType.VARCHAR,
    + 116        TokenType.NVARCHAR,
    + 117        TokenType.TEXT,
    + 118        TokenType.MEDIUMTEXT,
    + 119        TokenType.LONGTEXT,
    + 120        TokenType.MEDIUMBLOB,
    + 121        TokenType.LONGBLOB,
    + 122        TokenType.BINARY,
    + 123        TokenType.VARBINARY,
    + 124        TokenType.JSON,
    + 125        TokenType.JSONB,
    + 126        TokenType.INTERVAL,
    + 127        TokenType.TIME,
    + 128        TokenType.TIMESTAMP,
    + 129        TokenType.TIMESTAMPTZ,
    + 130        TokenType.TIMESTAMPLTZ,
    + 131        TokenType.DATETIME,
    + 132        TokenType.DATE,
    + 133        TokenType.DECIMAL,
    + 134        TokenType.UUID,
    + 135        TokenType.GEOGRAPHY,
    + 136        TokenType.GEOMETRY,
    + 137        TokenType.HLLSKETCH,
    + 138        TokenType.HSTORE,
    + 139        TokenType.PSEUDO_TYPE,
    + 140        TokenType.SUPER,
    + 141        TokenType.SERIAL,
    + 142        TokenType.SMALLSERIAL,
    + 143        TokenType.BIGSERIAL,
    + 144        TokenType.XML,
    + 145        TokenType.UNIQUEIDENTIFIER,
    + 146        TokenType.MONEY,
    + 147        TokenType.SMALLMONEY,
    + 148        TokenType.ROWVERSION,
    + 149        TokenType.IMAGE,
    + 150        TokenType.VARIANT,
    + 151        TokenType.OBJECT,
    + 152        TokenType.INET,
    + 153        *NESTED_TYPE_TOKENS,
    + 154    }
    + 155
    + 156    SUBQUERY_PREDICATES = {
    + 157        TokenType.ANY: exp.Any,
    + 158        TokenType.ALL: exp.All,
    + 159        TokenType.EXISTS: exp.Exists,
    + 160        TokenType.SOME: exp.Any,
    + 161    }
    + 162
    + 163    RESERVED_KEYWORDS = {*Tokenizer.SINGLE_TOKENS.values(), TokenType.SELECT}
    + 164
    + 165    DB_CREATABLES = {
    + 166        TokenType.DATABASE,
    + 167        TokenType.SCHEMA,
    + 168        TokenType.TABLE,
    + 169        TokenType.VIEW,
    + 170    }
    + 171
    + 172    CREATABLES = {
    + 173        TokenType.COLUMN,
    + 174        TokenType.FUNCTION,
    + 175        TokenType.INDEX,
    + 176        TokenType.PROCEDURE,
    + 177        *DB_CREATABLES,
    + 178    }
    + 179
    + 180    ID_VAR_TOKENS = {
    + 181        TokenType.VAR,
    + 182        TokenType.ANTI,
    + 183        TokenType.APPLY,
    + 184        TokenType.AUTO_INCREMENT,
    + 185        TokenType.BEGIN,
    + 186        TokenType.BOTH,
    + 187        TokenType.BUCKET,
    + 188        TokenType.CACHE,
    + 189        TokenType.CASCADE,
    + 190        TokenType.COLLATE,
    + 191        TokenType.COMMAND,
    + 192        TokenType.COMMENT,
    + 193        TokenType.COMMIT,
    + 194        TokenType.COMPOUND,
    + 195        TokenType.CONSTRAINT,
    + 196        TokenType.CURRENT_TIME,
    + 197        TokenType.DEFAULT,
    + 198        TokenType.DELETE,
    + 199        TokenType.DESCRIBE,
    + 200        TokenType.DIV,
    + 201        TokenType.END,
    + 202        TokenType.EXECUTE,
    + 203        TokenType.ESCAPE,
    + 204        TokenType.FALSE,
    + 205        TokenType.FIRST,
    + 206        TokenType.FILTER,
    + 207        TokenType.FOLLOWING,
    + 208        TokenType.FORMAT,
    + 209        TokenType.IF,
    + 210        TokenType.ISNULL,
    + 211        TokenType.INTERVAL,
    + 212        TokenType.LAZY,
    + 213        TokenType.LEADING,
    + 214        TokenType.LEFT,
    + 215        TokenType.LOCAL,
    + 216        TokenType.MATERIALIZED,
    + 217        TokenType.MERGE,
    + 218        TokenType.NATURAL,
    + 219        TokenType.NEXT,
    + 220        TokenType.OFFSET,
    + 221        TokenType.ONLY,
    + 222        TokenType.OPTIONS,
    + 223        TokenType.ORDINALITY,
    + 224        TokenType.PERCENT,
    + 225        TokenType.PIVOT,
    + 226        TokenType.PRECEDING,
    + 227        TokenType.RANGE,
    + 228        TokenType.REFERENCES,
    + 229        TokenType.RIGHT,
    + 230        TokenType.ROW,
    + 231        TokenType.ROWS,
    + 232        TokenType.SEED,
    + 233        TokenType.SEMI,
    + 234        TokenType.SET,
    + 235        TokenType.SHOW,
    + 236        TokenType.SORTKEY,
    + 237        TokenType.TEMPORARY,
    + 238        TokenType.TOP,
    + 239        TokenType.TRAILING,
    + 240        TokenType.TRUE,
    + 241        TokenType.UNBOUNDED,
    + 242        TokenType.UNIQUE,
    + 243        TokenType.UNLOGGED,
    + 244        TokenType.UNPIVOT,
    + 245        TokenType.VOLATILE,
    + 246        TokenType.WINDOW,
    + 247        *CREATABLES,
    + 248        *SUBQUERY_PREDICATES,
    + 249        *TYPE_TOKENS,
    + 250        *NO_PAREN_FUNCTIONS,
    + 251    }
    + 252
    + 253    TABLE_ALIAS_TOKENS = ID_VAR_TOKENS - {
    + 254        TokenType.APPLY,
    + 255        TokenType.LEFT,
    + 256        TokenType.NATURAL,
    + 257        TokenType.OFFSET,
    + 258        TokenType.RIGHT,
    + 259        TokenType.WINDOW,
    + 260    }
      261
    - 262    FUNC_TOKENS = {
    - 263        TokenType.COMMAND,
    - 264        TokenType.CURRENT_DATE,
    - 265        TokenType.CURRENT_DATETIME,
    - 266        TokenType.CURRENT_TIMESTAMP,
    - 267        TokenType.CURRENT_TIME,
    - 268        TokenType.FILTER,
    - 269        TokenType.FIRST,
    - 270        TokenType.FORMAT,
    - 271        TokenType.IDENTIFIER,
    - 272        TokenType.INDEX,
    - 273        TokenType.ISNULL,
    - 274        TokenType.ILIKE,
    - 275        TokenType.LIKE,
    - 276        TokenType.MERGE,
    - 277        TokenType.OFFSET,
    - 278        TokenType.PRIMARY_KEY,
    - 279        TokenType.REPLACE,
    - 280        TokenType.ROW,
    - 281        TokenType.UNNEST,
    - 282        TokenType.VAR,
    - 283        TokenType.LEFT,
    - 284        TokenType.RIGHT,
    - 285        TokenType.DATE,
    - 286        TokenType.DATETIME,
    - 287        TokenType.TABLE,
    - 288        TokenType.TIMESTAMP,
    - 289        TokenType.TIMESTAMPTZ,
    - 290        TokenType.WINDOW,
    - 291        *TYPE_TOKENS,
    - 292        *SUBQUERY_PREDICATES,
    - 293    }
    - 294
    - 295    CONJUNCTION = {
    - 296        TokenType.AND: exp.And,
    - 297        TokenType.OR: exp.Or,
    - 298    }
    - 299
    - 300    EQUALITY = {
    - 301        TokenType.EQ: exp.EQ,
    - 302        TokenType.NEQ: exp.NEQ,
    - 303        TokenType.NULLSAFE_EQ: exp.NullSafeEQ,
    - 304    }
    - 305
    - 306    COMPARISON = {
    - 307        TokenType.GT: exp.GT,
    - 308        TokenType.GTE: exp.GTE,
    - 309        TokenType.LT: exp.LT,
    - 310        TokenType.LTE: exp.LTE,
    - 311    }
    - 312
    - 313    BITWISE = {
    - 314        TokenType.AMP: exp.BitwiseAnd,
    - 315        TokenType.CARET: exp.BitwiseXor,
    - 316        TokenType.PIPE: exp.BitwiseOr,
    - 317        TokenType.DPIPE: exp.DPipe,
    - 318    }
    - 319
    - 320    TERM = {
    - 321        TokenType.DASH: exp.Sub,
    - 322        TokenType.PLUS: exp.Add,
    - 323        TokenType.MOD: exp.Mod,
    - 324        TokenType.COLLATE: exp.Collate,
    - 325    }
    - 326
    - 327    FACTOR = {
    - 328        TokenType.DIV: exp.IntDiv,
    - 329        TokenType.LR_ARROW: exp.Distance,
    - 330        TokenType.SLASH: exp.Div,
    - 331        TokenType.STAR: exp.Mul,
    - 332    }
    - 333
    - 334    TIMESTAMPS = {
    - 335        TokenType.TIME,
    - 336        TokenType.TIMESTAMP,
    - 337        TokenType.TIMESTAMPTZ,
    - 338        TokenType.TIMESTAMPLTZ,
    - 339    }
    - 340
    - 341    SET_OPERATIONS = {
    - 342        TokenType.UNION,
    - 343        TokenType.INTERSECT,
    - 344        TokenType.EXCEPT,
    - 345    }
    - 346
    - 347    JOIN_SIDES = {
    - 348        TokenType.LEFT,
    - 349        TokenType.RIGHT,
    - 350        TokenType.FULL,
    - 351    }
    - 352
    - 353    JOIN_KINDS = {
    - 354        TokenType.INNER,
    - 355        TokenType.OUTER,
    - 356        TokenType.CROSS,
    - 357        TokenType.SEMI,
    - 358        TokenType.ANTI,
    - 359    }
    - 360
    - 361    LAMBDAS = {
    - 362        TokenType.ARROW: lambda self, expressions: self.expression(
    - 363            exp.Lambda,
    - 364            this=self._parse_conjunction().transform(
    - 365                self._replace_lambda, {node.name for node in expressions}
    - 366            ),
    - 367            expressions=expressions,
    - 368        ),
    - 369        TokenType.FARROW: lambda self, expressions: self.expression(
    - 370            exp.Kwarg,
    - 371            this=exp.Var(this=expressions[0].name),
    - 372            expression=self._parse_conjunction(),
    - 373        ),
    - 374    }
    - 375
    - 376    COLUMN_OPERATORS = {
    - 377        TokenType.DOT: None,
    - 378        TokenType.DCOLON: lambda self, this, to: self.expression(
    - 379            exp.Cast,
    - 380            this=this,
    - 381            to=to,
    - 382        ),
    - 383        TokenType.ARROW: lambda self, this, path: self.expression(
    - 384            exp.JSONExtract,
    - 385            this=this,
    - 386            expression=path,
    - 387        ),
    - 388        TokenType.DARROW: lambda self, this, path: self.expression(
    - 389            exp.JSONExtractScalar,
    - 390            this=this,
    - 391            expression=path,
    - 392        ),
    - 393        TokenType.HASH_ARROW: lambda self, this, path: self.expression(
    - 394            exp.JSONBExtract,
    - 395            this=this,
    - 396            expression=path,
    - 397        ),
    - 398        TokenType.DHASH_ARROW: lambda self, this, path: self.expression(
    - 399            exp.JSONBExtractScalar,
    - 400            this=this,
    - 401            expression=path,
    - 402        ),
    - 403        TokenType.PLACEHOLDER: lambda self, this, key: self.expression(
    - 404            exp.JSONBContains,
    - 405            this=this,
    - 406            expression=key,
    - 407        ),
    - 408    }
    - 409
    - 410    EXPRESSION_PARSERS = {
    - 411        exp.Column: lambda self: self._parse_column(),
    - 412        exp.DataType: lambda self: self._parse_types(),
    - 413        exp.From: lambda self: self._parse_from(),
    - 414        exp.Group: lambda self: self._parse_group(),
    - 415        exp.Identifier: lambda self: self._parse_id_var(),
    - 416        exp.Lateral: lambda self: self._parse_lateral(),
    - 417        exp.Join: lambda self: self._parse_join(),
    - 418        exp.Order: lambda self: self._parse_order(),
    - 419        exp.Cluster: lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster),
    - 420        exp.Sort: lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort),
    - 421        exp.Lambda: lambda self: self._parse_lambda(),
    - 422        exp.Limit: lambda self: self._parse_limit(),
    - 423        exp.Offset: lambda self: self._parse_offset(),
    - 424        exp.TableAlias: lambda self: self._parse_table_alias(),
    - 425        exp.Table: lambda self: self._parse_table(),
    - 426        exp.Condition: lambda self: self._parse_conjunction(),
    - 427        exp.Expression: lambda self: self._parse_statement(),
    - 428        exp.Properties: lambda self: self._parse_properties(),
    - 429        exp.Where: lambda self: self._parse_where(),
    - 430        exp.Ordered: lambda self: self._parse_ordered(),
    - 431        exp.Having: lambda self: self._parse_having(),
    - 432        exp.With: lambda self: self._parse_with(),
    - 433        exp.Window: lambda self: self._parse_named_window(),
    - 434        "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(),
    - 435    }
    - 436
    - 437    STATEMENT_PARSERS = {
    - 438        TokenType.ALTER: lambda self: self._parse_alter(),
    - 439        TokenType.BEGIN: lambda self: self._parse_transaction(),
    - 440        TokenType.CACHE: lambda self: self._parse_cache(),
    - 441        TokenType.COMMIT: lambda self: self._parse_commit_or_rollback(),
    - 442        TokenType.COMMENT: lambda self: self._parse_comment(),
    - 443        TokenType.CREATE: lambda self: self._parse_create(),
    - 444        TokenType.DELETE: lambda self: self._parse_delete(),
    - 445        TokenType.DESC: lambda self: self._parse_describe(),
    - 446        TokenType.DESCRIBE: lambda self: self._parse_describe(),
    - 447        TokenType.DROP: lambda self: self._parse_drop(),
    - 448        TokenType.END: lambda self: self._parse_commit_or_rollback(),
    - 449        TokenType.INSERT: lambda self: self._parse_insert(),
    - 450        TokenType.LOAD_DATA: lambda self: self._parse_load_data(),
    - 451        TokenType.MERGE: lambda self: self._parse_merge(),
    - 452        TokenType.ROLLBACK: lambda self: self._parse_commit_or_rollback(),
    - 453        TokenType.UNCACHE: lambda self: self._parse_uncache(),
    - 454        TokenType.UPDATE: lambda self: self._parse_update(),
    - 455        TokenType.USE: lambda self: self.expression(
    - 456            exp.Use,
    - 457            kind=self._match_texts(("ROLE", "WAREHOUSE", "DATABASE", "SCHEMA"))
    - 458            and exp.Var(this=self._prev.text),
    - 459            this=self._parse_table(schema=False),
    - 460        ),
    - 461    }
    - 462
    - 463    UNARY_PARSERS = {
    - 464        TokenType.PLUS: lambda self: self._parse_unary(),  # Unary + is handled as a no-op
    - 465        TokenType.NOT: lambda self: self.expression(exp.Not, this=self._parse_equality()),
    - 466        TokenType.TILDA: lambda self: self.expression(exp.BitwiseNot, this=self._parse_unary()),
    - 467        TokenType.DASH: lambda self: self.expression(exp.Neg, this=self._parse_unary()),
    - 468    }
    - 469
    - 470    PRIMARY_PARSERS = {
    - 471        TokenType.STRING: lambda self, token: self.expression(
    - 472            exp.Literal, this=token.text, is_string=True
    - 473        ),
    - 474        TokenType.NUMBER: lambda self, token: self.expression(
    - 475            exp.Literal, this=token.text, is_string=False
    - 476        ),
    - 477        TokenType.STAR: lambda self, _: self.expression(
    - 478            exp.Star,
    - 479            **{"except": self._parse_except(), "replace": self._parse_replace()},
    - 480        ),
    - 481        TokenType.NULL: lambda self, _: self.expression(exp.Null),
    - 482        TokenType.TRUE: lambda self, _: self.expression(exp.Boolean, this=True),
    - 483        TokenType.FALSE: lambda self, _: self.expression(exp.Boolean, this=False),
    - 484        TokenType.BIT_STRING: lambda self, token: self.expression(exp.BitString, this=token.text),
    - 485        TokenType.HEX_STRING: lambda self, token: self.expression(exp.HexString, this=token.text),
    - 486        TokenType.BYTE_STRING: lambda self, token: self.expression(exp.ByteString, this=token.text),
    - 487        TokenType.INTRODUCER: lambda self, token: self._parse_introducer(token),
    - 488        TokenType.NATIONAL: lambda self, token: self._parse_national(token),
    - 489        TokenType.SESSION_PARAMETER: lambda self, _: self._parse_session_parameter(),
    - 490    }
    - 491
    - 492    PLACEHOLDER_PARSERS = {
    - 493        TokenType.PLACEHOLDER: lambda self: self.expression(exp.Placeholder),
    - 494        TokenType.PARAMETER: lambda self: self._parse_parameter(),
    - 495        TokenType.COLON: lambda self: self.expression(exp.Placeholder, this=self._prev.text)
    - 496        if self._match_set((TokenType.NUMBER, TokenType.VAR))
    - 497        else None,
    - 498    }
    - 499
    - 500    RANGE_PARSERS = {
    - 501        TokenType.BETWEEN: lambda self, this: self._parse_between(this),
    - 502        TokenType.GLOB: lambda self, this: self._parse_escape(
    - 503            self.expression(exp.Glob, this=this, expression=self._parse_bitwise())
    - 504        ),
    - 505        TokenType.OVERLAPS: lambda self, this: self._parse_escape(
    - 506            self.expression(exp.Overlaps, this=this, expression=self._parse_bitwise())
    - 507        ),
    - 508        TokenType.IN: lambda self, this: self._parse_in(this),
    - 509        TokenType.IS: lambda self, this: self._parse_is(this),
    - 510        TokenType.LIKE: lambda self, this: self._parse_escape(
    - 511            self.expression(exp.Like, this=this, expression=self._parse_bitwise())
    + 262    UPDATE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.SET}
    + 263
    + 264    TRIM_TYPES = {TokenType.LEADING, TokenType.TRAILING, TokenType.BOTH}
    + 265
    + 266    FUNC_TOKENS = {
    + 267        TokenType.COMMAND,
    + 268        TokenType.CURRENT_DATE,
    + 269        TokenType.CURRENT_DATETIME,
    + 270        TokenType.CURRENT_TIMESTAMP,
    + 271        TokenType.CURRENT_TIME,
    + 272        TokenType.FILTER,
    + 273        TokenType.FIRST,
    + 274        TokenType.FORMAT,
    + 275        TokenType.IDENTIFIER,
    + 276        TokenType.INDEX,
    + 277        TokenType.ISNULL,
    + 278        TokenType.ILIKE,
    + 279        TokenType.LIKE,
    + 280        TokenType.MERGE,
    + 281        TokenType.OFFSET,
    + 282        TokenType.PRIMARY_KEY,
    + 283        TokenType.REPLACE,
    + 284        TokenType.ROW,
    + 285        TokenType.UNNEST,
    + 286        TokenType.VAR,
    + 287        TokenType.LEFT,
    + 288        TokenType.RIGHT,
    + 289        TokenType.DATE,
    + 290        TokenType.DATETIME,
    + 291        TokenType.TABLE,
    + 292        TokenType.TIMESTAMP,
    + 293        TokenType.TIMESTAMPTZ,
    + 294        TokenType.WINDOW,
    + 295        *TYPE_TOKENS,
    + 296        *SUBQUERY_PREDICATES,
    + 297    }
    + 298
    + 299    CONJUNCTION = {
    + 300        TokenType.AND: exp.And,
    + 301        TokenType.OR: exp.Or,
    + 302    }
    + 303
    + 304    EQUALITY = {
    + 305        TokenType.EQ: exp.EQ,
    + 306        TokenType.NEQ: exp.NEQ,
    + 307        TokenType.NULLSAFE_EQ: exp.NullSafeEQ,
    + 308    }
    + 309
    + 310    COMPARISON = {
    + 311        TokenType.GT: exp.GT,
    + 312        TokenType.GTE: exp.GTE,
    + 313        TokenType.LT: exp.LT,
    + 314        TokenType.LTE: exp.LTE,
    + 315    }
    + 316
    + 317    BITWISE = {
    + 318        TokenType.AMP: exp.BitwiseAnd,
    + 319        TokenType.CARET: exp.BitwiseXor,
    + 320        TokenType.PIPE: exp.BitwiseOr,
    + 321        TokenType.DPIPE: exp.DPipe,
    + 322    }
    + 323
    + 324    TERM = {
    + 325        TokenType.DASH: exp.Sub,
    + 326        TokenType.PLUS: exp.Add,
    + 327        TokenType.MOD: exp.Mod,
    + 328        TokenType.COLLATE: exp.Collate,
    + 329    }
    + 330
    + 331    FACTOR = {
    + 332        TokenType.DIV: exp.IntDiv,
    + 333        TokenType.LR_ARROW: exp.Distance,
    + 334        TokenType.SLASH: exp.Div,
    + 335        TokenType.STAR: exp.Mul,
    + 336    }
    + 337
    + 338    TIMESTAMPS = {
    + 339        TokenType.TIME,
    + 340        TokenType.TIMESTAMP,
    + 341        TokenType.TIMESTAMPTZ,
    + 342        TokenType.TIMESTAMPLTZ,
    + 343    }
    + 344
    + 345    SET_OPERATIONS = {
    + 346        TokenType.UNION,
    + 347        TokenType.INTERSECT,
    + 348        TokenType.EXCEPT,
    + 349    }
    + 350
    + 351    JOIN_SIDES = {
    + 352        TokenType.LEFT,
    + 353        TokenType.RIGHT,
    + 354        TokenType.FULL,
    + 355    }
    + 356
    + 357    JOIN_KINDS = {
    + 358        TokenType.INNER,
    + 359        TokenType.OUTER,
    + 360        TokenType.CROSS,
    + 361        TokenType.SEMI,
    + 362        TokenType.ANTI,
    + 363    }
    + 364
    + 365    LAMBDAS = {
    + 366        TokenType.ARROW: lambda self, expressions: self.expression(
    + 367            exp.Lambda,
    + 368            this=self._parse_conjunction().transform(
    + 369                self._replace_lambda, {node.name for node in expressions}
    + 370            ),
    + 371            expressions=expressions,
    + 372        ),
    + 373        TokenType.FARROW: lambda self, expressions: self.expression(
    + 374            exp.Kwarg,
    + 375            this=exp.Var(this=expressions[0].name),
    + 376            expression=self._parse_conjunction(),
    + 377        ),
    + 378    }
    + 379
    + 380    COLUMN_OPERATORS = {
    + 381        TokenType.DOT: None,
    + 382        TokenType.DCOLON: lambda self, this, to: self.expression(
    + 383            exp.Cast,
    + 384            this=this,
    + 385            to=to,
    + 386        ),
    + 387        TokenType.ARROW: lambda self, this, path: self.expression(
    + 388            exp.JSONExtract,
    + 389            this=this,
    + 390            expression=path,
    + 391        ),
    + 392        TokenType.DARROW: lambda self, this, path: self.expression(
    + 393            exp.JSONExtractScalar,
    + 394            this=this,
    + 395            expression=path,
    + 396        ),
    + 397        TokenType.HASH_ARROW: lambda self, this, path: self.expression(
    + 398            exp.JSONBExtract,
    + 399            this=this,
    + 400            expression=path,
    + 401        ),
    + 402        TokenType.DHASH_ARROW: lambda self, this, path: self.expression(
    + 403            exp.JSONBExtractScalar,
    + 404            this=this,
    + 405            expression=path,
    + 406        ),
    + 407        TokenType.PLACEHOLDER: lambda self, this, key: self.expression(
    + 408            exp.JSONBContains,
    + 409            this=this,
    + 410            expression=key,
    + 411        ),
    + 412    }
    + 413
    + 414    EXPRESSION_PARSERS = {
    + 415        exp.Column: lambda self: self._parse_column(),
    + 416        exp.DataType: lambda self: self._parse_types(),
    + 417        exp.From: lambda self: self._parse_from(),
    + 418        exp.Group: lambda self: self._parse_group(),
    + 419        exp.Identifier: lambda self: self._parse_id_var(),
    + 420        exp.Lateral: lambda self: self._parse_lateral(),
    + 421        exp.Join: lambda self: self._parse_join(),
    + 422        exp.Order: lambda self: self._parse_order(),
    + 423        exp.Cluster: lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster),
    + 424        exp.Sort: lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort),
    + 425        exp.Lambda: lambda self: self._parse_lambda(),
    + 426        exp.Limit: lambda self: self._parse_limit(),
    + 427        exp.Offset: lambda self: self._parse_offset(),
    + 428        exp.TableAlias: lambda self: self._parse_table_alias(),
    + 429        exp.Table: lambda self: self._parse_table(),
    + 430        exp.Condition: lambda self: self._parse_conjunction(),
    + 431        exp.Expression: lambda self: self._parse_statement(),
    + 432        exp.Properties: lambda self: self._parse_properties(),
    + 433        exp.Where: lambda self: self._parse_where(),
    + 434        exp.Ordered: lambda self: self._parse_ordered(),
    + 435        exp.Having: lambda self: self._parse_having(),
    + 436        exp.With: lambda self: self._parse_with(),
    + 437        exp.Window: lambda self: self._parse_named_window(),
    + 438        exp.Qualify: lambda self: self._parse_qualify(),
    + 439        "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(),
    + 440    }
    + 441
    + 442    STATEMENT_PARSERS = {
    + 443        TokenType.ALTER: lambda self: self._parse_alter(),
    + 444        TokenType.BEGIN: lambda self: self._parse_transaction(),
    + 445        TokenType.CACHE: lambda self: self._parse_cache(),
    + 446        TokenType.COMMIT: lambda self: self._parse_commit_or_rollback(),
    + 447        TokenType.COMMENT: lambda self: self._parse_comment(),
    + 448        TokenType.CREATE: lambda self: self._parse_create(),
    + 449        TokenType.DELETE: lambda self: self._parse_delete(),
    + 450        TokenType.DESC: lambda self: self._parse_describe(),
    + 451        TokenType.DESCRIBE: lambda self: self._parse_describe(),
    + 452        TokenType.DROP: lambda self: self._parse_drop(),
    + 453        TokenType.END: lambda self: self._parse_commit_or_rollback(),
    + 454        TokenType.INSERT: lambda self: self._parse_insert(),
    + 455        TokenType.LOAD_DATA: lambda self: self._parse_load_data(),
    + 456        TokenType.MERGE: lambda self: self._parse_merge(),
    + 457        TokenType.ROLLBACK: lambda self: self._parse_commit_or_rollback(),
    + 458        TokenType.UNCACHE: lambda self: self._parse_uncache(),
    + 459        TokenType.UPDATE: lambda self: self._parse_update(),
    + 460        TokenType.USE: lambda self: self.expression(
    + 461            exp.Use,
    + 462            kind=self._match_texts(("ROLE", "WAREHOUSE", "DATABASE", "SCHEMA"))
    + 463            and exp.Var(this=self._prev.text),
    + 464            this=self._parse_table(schema=False),
    + 465        ),
    + 466    }
    + 467
    + 468    UNARY_PARSERS = {
    + 469        TokenType.PLUS: lambda self: self._parse_unary(),  # Unary + is handled as a no-op
    + 470        TokenType.NOT: lambda self: self.expression(exp.Not, this=self._parse_equality()),
    + 471        TokenType.TILDA: lambda self: self.expression(exp.BitwiseNot, this=self._parse_unary()),
    + 472        TokenType.DASH: lambda self: self.expression(exp.Neg, this=self._parse_unary()),
    + 473    }
    + 474
    + 475    PRIMARY_PARSERS = {
    + 476        TokenType.STRING: lambda self, token: self.expression(
    + 477            exp.Literal, this=token.text, is_string=True
    + 478        ),
    + 479        TokenType.NUMBER: lambda self, token: self.expression(
    + 480            exp.Literal, this=token.text, is_string=False
    + 481        ),
    + 482        TokenType.STAR: lambda self, _: self.expression(
    + 483            exp.Star,
    + 484            **{"except": self._parse_except(), "replace": self._parse_replace()},
    + 485        ),
    + 486        TokenType.NULL: lambda self, _: self.expression(exp.Null),
    + 487        TokenType.TRUE: lambda self, _: self.expression(exp.Boolean, this=True),
    + 488        TokenType.FALSE: lambda self, _: self.expression(exp.Boolean, this=False),
    + 489        TokenType.BIT_STRING: lambda self, token: self.expression(exp.BitString, this=token.text),
    + 490        TokenType.HEX_STRING: lambda self, token: self.expression(exp.HexString, this=token.text),
    + 491        TokenType.BYTE_STRING: lambda self, token: self.expression(exp.ByteString, this=token.text),
    + 492        TokenType.INTRODUCER: lambda self, token: self._parse_introducer(token),
    + 493        TokenType.NATIONAL: lambda self, token: self._parse_national(token),
    + 494        TokenType.SESSION_PARAMETER: lambda self, _: self._parse_session_parameter(),
    + 495    }
    + 496
    + 497    PLACEHOLDER_PARSERS = {
    + 498        TokenType.PLACEHOLDER: lambda self: self.expression(exp.Placeholder),
    + 499        TokenType.PARAMETER: lambda self: self._parse_parameter(),
    + 500        TokenType.COLON: lambda self: self.expression(exp.Placeholder, this=self._prev.text)
    + 501        if self._match_set((TokenType.NUMBER, TokenType.VAR))
    + 502        else None,
    + 503    }
    + 504
    + 505    RANGE_PARSERS = {
    + 506        TokenType.BETWEEN: lambda self, this: self._parse_between(this),
    + 507        TokenType.GLOB: lambda self, this: self._parse_escape(
    + 508            self.expression(exp.Glob, this=this, expression=self._parse_bitwise())
    + 509        ),
    + 510        TokenType.OVERLAPS: lambda self, this: self._parse_escape(
    + 511            self.expression(exp.Overlaps, this=this, expression=self._parse_bitwise())
      512        ),
    - 513        TokenType.ILIKE: lambda self, this: self._parse_escape(
    - 514            self.expression(exp.ILike, this=this, expression=self._parse_bitwise())
    - 515        ),
    - 516        TokenType.IRLIKE: lambda self, this: self.expression(
    - 517            exp.RegexpILike, this=this, expression=self._parse_bitwise()
    - 518        ),
    - 519        TokenType.RLIKE: lambda self, this: self.expression(
    - 520            exp.RegexpLike, this=this, expression=self._parse_bitwise()
    - 521        ),
    - 522        TokenType.SIMILAR_TO: lambda self, this: self.expression(
    - 523            exp.SimilarTo, this=this, expression=self._parse_bitwise()
    - 524        ),
    - 525    }
    - 526
    - 527    PROPERTY_PARSERS = {
    - 528        "AFTER": lambda self: self._parse_afterjournal(
    - 529            no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL"
    - 530        ),
    - 531        "ALGORITHM": lambda self: self._parse_property_assignment(exp.AlgorithmProperty),
    - 532        "AUTO_INCREMENT": lambda self: self._parse_property_assignment(exp.AutoIncrementProperty),
    - 533        "BEFORE": lambda self: self._parse_journal(
    + 513        TokenType.IN: lambda self, this: self._parse_in(this),
    + 514        TokenType.IS: lambda self, this: self._parse_is(this),
    + 515        TokenType.LIKE: lambda self, this: self._parse_escape(
    + 516            self.expression(exp.Like, this=this, expression=self._parse_bitwise())
    + 517        ),
    + 518        TokenType.ILIKE: lambda self, this: self._parse_escape(
    + 519            self.expression(exp.ILike, this=this, expression=self._parse_bitwise())
    + 520        ),
    + 521        TokenType.IRLIKE: lambda self, this: self.expression(
    + 522            exp.RegexpILike, this=this, expression=self._parse_bitwise()
    + 523        ),
    + 524        TokenType.RLIKE: lambda self, this: self.expression(
    + 525            exp.RegexpLike, this=this, expression=self._parse_bitwise()
    + 526        ),
    + 527        TokenType.SIMILAR_TO: lambda self, this: self.expression(
    + 528            exp.SimilarTo, this=this, expression=self._parse_bitwise()
    + 529        ),
    + 530    }
    + 531
    + 532    PROPERTY_PARSERS = {
    + 533        "AFTER": lambda self: self._parse_afterjournal(
      534            no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL"
      535        ),
    - 536        "BLOCKCOMPRESSION": lambda self: self._parse_blockcompression(),
    - 537        "CHARACTER SET": lambda self: self._parse_character_set(),
    - 538        "CHECKSUM": lambda self: self._parse_checksum(),
    - 539        "CLUSTER BY": lambda self: self.expression(
    - 540            exp.Cluster, expressions=self._parse_csv(self._parse_ordered)
    - 541        ),
    - 542        "COLLATE": lambda self: self._parse_property_assignment(exp.CollateProperty),
    - 543        "COMMENT": lambda self: self._parse_property_assignment(exp.SchemaCommentProperty),
    - 544        "DATABLOCKSIZE": lambda self: self._parse_datablocksize(
    - 545            default=self._prev.text.upper() == "DEFAULT"
    + 536        "ALGORITHM": lambda self: self._parse_property_assignment(exp.AlgorithmProperty),
    + 537        "AUTO_INCREMENT": lambda self: self._parse_property_assignment(exp.AutoIncrementProperty),
    + 538        "BEFORE": lambda self: self._parse_journal(
    + 539            no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL"
    + 540        ),
    + 541        "BLOCKCOMPRESSION": lambda self: self._parse_blockcompression(),
    + 542        "CHARACTER SET": lambda self: self._parse_character_set(),
    + 543        "CHECKSUM": lambda self: self._parse_checksum(),
    + 544        "CLUSTER BY": lambda self: self.expression(
    + 545            exp.Cluster, expressions=self._parse_csv(self._parse_ordered)
      546        ),
    - 547        "DEFINER": lambda self: self._parse_definer(),
    - 548        "DETERMINISTIC": lambda self: self.expression(
    - 549            exp.VolatilityProperty, this=exp.Literal.string("IMMUTABLE")
    - 550        ),
    - 551        "DISTKEY": lambda self: self._parse_distkey(),
    - 552        "DISTSTYLE": lambda self: self._parse_property_assignment(exp.DistStyleProperty),
    - 553        "EXECUTE": lambda self: self._parse_property_assignment(exp.ExecuteAsProperty),
    - 554        "EXTERNAL": lambda self: self.expression(exp.ExternalProperty),
    - 555        "FALLBACK": lambda self: self._parse_fallback(no=self._prev.text.upper() == "NO"),
    - 556        "FORMAT": lambda self: self._parse_property_assignment(exp.FileFormatProperty),
    - 557        "FREESPACE": lambda self: self._parse_freespace(),
    - 558        "GLOBAL": lambda self: self._parse_temporary(global_=True),
    - 559        "IMMUTABLE": lambda self: self.expression(
    - 560            exp.VolatilityProperty, this=exp.Literal.string("IMMUTABLE")
    - 561        ),
    - 562        "JOURNAL": lambda self: self._parse_journal(
    - 563            no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL"
    - 564        ),
    - 565        "LANGUAGE": lambda self: self._parse_property_assignment(exp.LanguageProperty),
    - 566        "LIKE": lambda self: self._parse_create_like(),
    - 567        "LOCAL": lambda self: self._parse_afterjournal(no=False, dual=False, local=True),
    - 568        "LOCATION": lambda self: self._parse_property_assignment(exp.LocationProperty),
    - 569        "LOCK": lambda self: self._parse_locking(),
    - 570        "LOCKING": lambda self: self._parse_locking(),
    - 571        "LOG": lambda self: self._parse_log(no=self._prev.text.upper() == "NO"),
    - 572        "MATERIALIZED": lambda self: self.expression(exp.MaterializedProperty),
    - 573        "MAX": lambda self: self._parse_datablocksize(),
    - 574        "MAXIMUM": lambda self: self._parse_datablocksize(),
    - 575        "MERGEBLOCKRATIO": lambda self: self._parse_mergeblockratio(
    - 576            no=self._prev.text.upper() == "NO", default=self._prev.text.upper() == "DEFAULT"
    - 577        ),
    - 578        "MIN": lambda self: self._parse_datablocksize(),
    - 579        "MINIMUM": lambda self: self._parse_datablocksize(),
    - 580        "MULTISET": lambda self: self.expression(exp.SetProperty, multi=True),
    - 581        "NO": lambda self: self._parse_noprimaryindex(),
    - 582        "NOT": lambda self: self._parse_afterjournal(no=False, dual=False, local=False),
    - 583        "ON": lambda self: self._parse_oncommit(),
    - 584        "PARTITION BY": lambda self: self._parse_partitioned_by(),
    - 585        "PARTITIONED BY": lambda self: self._parse_partitioned_by(),
    - 586        "PARTITIONED_BY": lambda self: self._parse_partitioned_by(),
    - 587        "RETURNS": lambda self: self._parse_returns(),
    - 588        "ROW": lambda self: self._parse_row(),
    - 589        "SET": lambda self: self.expression(exp.SetProperty, multi=False),
    - 590        "SORTKEY": lambda self: self._parse_sortkey(),
    - 591        "STABLE": lambda self: self.expression(
    - 592            exp.VolatilityProperty, this=exp.Literal.string("STABLE")
    - 593        ),
    - 594        "STORED": lambda self: self._parse_property_assignment(exp.FileFormatProperty),
    - 595        "TABLE_FORMAT": lambda self: self._parse_property_assignment(exp.TableFormatProperty),
    - 596        "TBLPROPERTIES": lambda self: self._parse_wrapped_csv(self._parse_property),
    - 597        "TEMPORARY": lambda self: self._parse_temporary(global_=False),
    - 598        "TRANSIENT": lambda self: self.expression(exp.TransientProperty),
    - 599        "USING": lambda self: self._parse_property_assignment(exp.TableFormatProperty),
    - 600        "VOLATILE": lambda self: self.expression(
    - 601            exp.VolatilityProperty, this=exp.Literal.string("VOLATILE")
    - 602        ),
    - 603        "WITH": lambda self: self._parse_with_property(),
    - 604    }
    - 605
    - 606    CONSTRAINT_PARSERS = {
    - 607        "AUTOINCREMENT": lambda self: self._parse_auto_increment(),
    - 608        "AUTO_INCREMENT": lambda self: self._parse_auto_increment(),
    - 609        "CASESPECIFIC": lambda self: self.expression(exp.CaseSpecificColumnConstraint, not_=False),
    - 610        "CHARACTER SET": lambda self: self.expression(
    - 611            exp.CharacterSetColumnConstraint, this=self._parse_var_or_string()
    - 612        ),
    - 613        "CHECK": lambda self: self.expression(
    - 614            exp.CheckColumnConstraint, this=self._parse_wrapped(self._parse_conjunction)
    - 615        ),
    - 616        "COLLATE": lambda self: self.expression(
    - 617            exp.CollateColumnConstraint, this=self._parse_var()
    - 618        ),
    - 619        "COMMENT": lambda self: self.expression(
    - 620            exp.CommentColumnConstraint, this=self._parse_string()
    - 621        ),
    - 622        "COMPRESS": lambda self: self._parse_compress(),
    - 623        "DEFAULT": lambda self: self.expression(
    - 624            exp.DefaultColumnConstraint, this=self._parse_bitwise()
    - 625        ),
    - 626        "ENCODE": lambda self: self.expression(exp.EncodeColumnConstraint, this=self._parse_var()),
    - 627        "FOREIGN KEY": lambda self: self._parse_foreign_key(),
    - 628        "FORMAT": lambda self: self.expression(
    - 629            exp.DateFormatColumnConstraint, this=self._parse_var_or_string()
    + 547        "COLLATE": lambda self: self._parse_property_assignment(exp.CollateProperty),
    + 548        "COMMENT": lambda self: self._parse_property_assignment(exp.SchemaCommentProperty),
    + 549        "DATABLOCKSIZE": lambda self: self._parse_datablocksize(
    + 550            default=self._prev.text.upper() == "DEFAULT"
    + 551        ),
    + 552        "DEFINER": lambda self: self._parse_definer(),
    + 553        "DETERMINISTIC": lambda self: self.expression(
    + 554            exp.VolatilityProperty, this=exp.Literal.string("IMMUTABLE")
    + 555        ),
    + 556        "DISTKEY": lambda self: self._parse_distkey(),
    + 557        "DISTSTYLE": lambda self: self._parse_property_assignment(exp.DistStyleProperty),
    + 558        "EXECUTE": lambda self: self._parse_property_assignment(exp.ExecuteAsProperty),
    + 559        "EXTERNAL": lambda self: self.expression(exp.ExternalProperty),
    + 560        "FALLBACK": lambda self: self._parse_fallback(no=self._prev.text.upper() == "NO"),
    + 561        "FORMAT": lambda self: self._parse_property_assignment(exp.FileFormatProperty),
    + 562        "FREESPACE": lambda self: self._parse_freespace(),
    + 563        "GLOBAL": lambda self: self._parse_temporary(global_=True),
    + 564        "IMMUTABLE": lambda self: self.expression(
    + 565            exp.VolatilityProperty, this=exp.Literal.string("IMMUTABLE")
    + 566        ),
    + 567        "JOURNAL": lambda self: self._parse_journal(
    + 568            no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL"
    + 569        ),
    + 570        "LANGUAGE": lambda self: self._parse_property_assignment(exp.LanguageProperty),
    + 571        "LIKE": lambda self: self._parse_create_like(),
    + 572        "LOCAL": lambda self: self._parse_afterjournal(no=False, dual=False, local=True),
    + 573        "LOCATION": lambda self: self._parse_property_assignment(exp.LocationProperty),
    + 574        "LOCK": lambda self: self._parse_locking(),
    + 575        "LOCKING": lambda self: self._parse_locking(),
    + 576        "LOG": lambda self: self._parse_log(no=self._prev.text.upper() == "NO"),
    + 577        "MATERIALIZED": lambda self: self.expression(exp.MaterializedProperty),
    + 578        "MAX": lambda self: self._parse_datablocksize(),
    + 579        "MAXIMUM": lambda self: self._parse_datablocksize(),
    + 580        "MERGEBLOCKRATIO": lambda self: self._parse_mergeblockratio(
    + 581            no=self._prev.text.upper() == "NO", default=self._prev.text.upper() == "DEFAULT"
    + 582        ),
    + 583        "MIN": lambda self: self._parse_datablocksize(),
    + 584        "MINIMUM": lambda self: self._parse_datablocksize(),
    + 585        "MULTISET": lambda self: self.expression(exp.SetProperty, multi=True),
    + 586        "NO": lambda self: self._parse_noprimaryindex(),
    + 587        "NOT": lambda self: self._parse_afterjournal(no=False, dual=False, local=False),
    + 588        "ON": lambda self: self._parse_oncommit(),
    + 589        "PARTITION BY": lambda self: self._parse_partitioned_by(),
    + 590        "PARTITIONED BY": lambda self: self._parse_partitioned_by(),
    + 591        "PARTITIONED_BY": lambda self: self._parse_partitioned_by(),
    + 592        "RETURNS": lambda self: self._parse_returns(),
    + 593        "ROW": lambda self: self._parse_row(),
    + 594        "SET": lambda self: self.expression(exp.SetProperty, multi=False),
    + 595        "SORTKEY": lambda self: self._parse_sortkey(),
    + 596        "STABLE": lambda self: self.expression(
    + 597            exp.VolatilityProperty, this=exp.Literal.string("STABLE")
    + 598        ),
    + 599        "STORED": lambda self: self._parse_property_assignment(exp.FileFormatProperty),
    + 600        "TABLE_FORMAT": lambda self: self._parse_property_assignment(exp.TableFormatProperty),
    + 601        "TBLPROPERTIES": lambda self: self._parse_wrapped_csv(self._parse_property),
    + 602        "TEMPORARY": lambda self: self._parse_temporary(global_=False),
    + 603        "TRANSIENT": lambda self: self.expression(exp.TransientProperty),
    + 604        "USING": lambda self: self._parse_property_assignment(exp.TableFormatProperty),
    + 605        "VOLATILE": lambda self: self.expression(
    + 606            exp.VolatilityProperty, this=exp.Literal.string("VOLATILE")
    + 607        ),
    + 608        "WITH": lambda self: self._parse_with_property(),
    + 609    }
    + 610
    + 611    CONSTRAINT_PARSERS = {
    + 612        "AUTOINCREMENT": lambda self: self._parse_auto_increment(),
    + 613        "AUTO_INCREMENT": lambda self: self._parse_auto_increment(),
    + 614        "CASESPECIFIC": lambda self: self.expression(exp.CaseSpecificColumnConstraint, not_=False),
    + 615        "CHARACTER SET": lambda self: self.expression(
    + 616            exp.CharacterSetColumnConstraint, this=self._parse_var_or_string()
    + 617        ),
    + 618        "CHECK": lambda self: self.expression(
    + 619            exp.CheckColumnConstraint, this=self._parse_wrapped(self._parse_conjunction)
    + 620        ),
    + 621        "COLLATE": lambda self: self.expression(
    + 622            exp.CollateColumnConstraint, this=self._parse_var()
    + 623        ),
    + 624        "COMMENT": lambda self: self.expression(
    + 625            exp.CommentColumnConstraint, this=self._parse_string()
    + 626        ),
    + 627        "COMPRESS": lambda self: self._parse_compress(),
    + 628        "DEFAULT": lambda self: self.expression(
    + 629            exp.DefaultColumnConstraint, this=self._parse_bitwise()
      630        ),
    - 631        "GENERATED": lambda self: self._parse_generated_as_identity(),
    - 632        "IDENTITY": lambda self: self._parse_auto_increment(),
    - 633        "INLINE": lambda self: self._parse_inline(),
    - 634        "LIKE": lambda self: self._parse_create_like(),
    - 635        "NOT": lambda self: self._parse_not_constraint(),
    - 636        "NULL": lambda self: self.expression(exp.NotNullColumnConstraint, allow_null=True),
    - 637        "PATH": lambda self: self.expression(exp.PathColumnConstraint, this=self._parse_string()),
    - 638        "PRIMARY KEY": lambda self: self._parse_primary_key(),
    - 639        "TITLE": lambda self: self.expression(
    - 640            exp.TitleColumnConstraint, this=self._parse_var_or_string()
    - 641        ),
    - 642        "UNIQUE": lambda self: self._parse_unique(),
    - 643        "UPPERCASE": lambda self: self.expression(exp.UppercaseColumnConstraint),
    - 644    }
    - 645
    - 646    ALTER_PARSERS = {
    - 647        "ADD": lambda self: self._parse_alter_table_add(),
    - 648        "ALTER": lambda self: self._parse_alter_table_alter(),
    - 649        "DELETE": lambda self: self.expression(exp.Delete, where=self._parse_where()),
    - 650        "DROP": lambda self: self._parse_alter_table_drop(),
    - 651        "RENAME": lambda self: self._parse_alter_table_rename(),
    - 652    }
    - 653
    - 654    SCHEMA_UNNAMED_CONSTRAINTS = {"CHECK", "FOREIGN KEY", "LIKE", "PRIMARY KEY", "UNIQUE"}
    - 655
    - 656    NO_PAREN_FUNCTION_PARSERS = {
    - 657        TokenType.CASE: lambda self: self._parse_case(),
    - 658        TokenType.IF: lambda self: self._parse_if(),
    - 659        TokenType.ANY: lambda self: self.expression(exp.Any, this=self._parse_bitwise()),
    - 660    }
    - 661
    - 662    FUNCTION_PARSERS: t.Dict[str, t.Callable] = {
    - 663        "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST),
    - 664        "TRY_CONVERT": lambda self: self._parse_convert(False),
    - 665        "EXTRACT": lambda self: self._parse_extract(),
    - 666        "POSITION": lambda self: self._parse_position(),
    - 667        "SUBSTRING": lambda self: self._parse_substring(),
    - 668        "TRIM": lambda self: self._parse_trim(),
    - 669        "CAST": lambda self: self._parse_cast(self.STRICT_CAST),
    - 670        "TRY_CAST": lambda self: self._parse_cast(False),
    - 671        "STRING_AGG": lambda self: self._parse_string_agg(),
    - 672    }
    - 673
    - 674    QUERY_MODIFIER_PARSERS = {
    - 675        "match": lambda self: self._parse_match_recognize(),
    - 676        "where": lambda self: self._parse_where(),
    - 677        "group": lambda self: self._parse_group(),
    - 678        "having": lambda self: self._parse_having(),
    - 679        "qualify": lambda self: self._parse_qualify(),
    - 680        "windows": lambda self: self._parse_window_clause(),
    - 681        "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute),
    - 682        "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort),
    - 683        "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster),
    - 684        "order": lambda self: self._parse_order(),
    - 685        "limit": lambda self: self._parse_limit(),
    - 686        "offset": lambda self: self._parse_offset(),
    - 687        "lock": lambda self: self._parse_lock(),
    - 688    }
    - 689
    - 690    SHOW_PARSERS: t.Dict[str, t.Callable] = {}
    - 691    SET_PARSERS: t.Dict[str, t.Callable] = {}
    - 692
    - 693    MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table)
    - 694
    - 695    TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"}
    - 696
    - 697    INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"}
    + 631        "ENCODE": lambda self: self.expression(exp.EncodeColumnConstraint, this=self._parse_var()),
    + 632        "FOREIGN KEY": lambda self: self._parse_foreign_key(),
    + 633        "FORMAT": lambda self: self.expression(
    + 634            exp.DateFormatColumnConstraint, this=self._parse_var_or_string()
    + 635        ),
    + 636        "GENERATED": lambda self: self._parse_generated_as_identity(),
    + 637        "IDENTITY": lambda self: self._parse_auto_increment(),
    + 638        "INLINE": lambda self: self._parse_inline(),
    + 639        "LIKE": lambda self: self._parse_create_like(),
    + 640        "NOT": lambda self: self._parse_not_constraint(),
    + 641        "NULL": lambda self: self.expression(exp.NotNullColumnConstraint, allow_null=True),
    + 642        "PATH": lambda self: self.expression(exp.PathColumnConstraint, this=self._parse_string()),
    + 643        "PRIMARY KEY": lambda self: self._parse_primary_key(),
    + 644        "TITLE": lambda self: self.expression(
    + 645            exp.TitleColumnConstraint, this=self._parse_var_or_string()
    + 646        ),
    + 647        "UNIQUE": lambda self: self._parse_unique(),
    + 648        "UPPERCASE": lambda self: self.expression(exp.UppercaseColumnConstraint),
    + 649    }
    + 650
    + 651    ALTER_PARSERS = {
    + 652        "ADD": lambda self: self._parse_alter_table_add(),
    + 653        "ALTER": lambda self: self._parse_alter_table_alter(),
    + 654        "DELETE": lambda self: self.expression(exp.Delete, where=self._parse_where()),
    + 655        "DROP": lambda self: self._parse_alter_table_drop(),
    + 656        "RENAME": lambda self: self._parse_alter_table_rename(),
    + 657    }
    + 658
    + 659    SCHEMA_UNNAMED_CONSTRAINTS = {"CHECK", "FOREIGN KEY", "LIKE", "PRIMARY KEY", "UNIQUE"}
    + 660
    + 661    NO_PAREN_FUNCTION_PARSERS = {
    + 662        TokenType.CASE: lambda self: self._parse_case(),
    + 663        TokenType.IF: lambda self: self._parse_if(),
    + 664        TokenType.ANY: lambda self: self.expression(exp.Any, this=self._parse_bitwise()),
    + 665    }
    + 666
    + 667    FUNCTION_PARSERS: t.Dict[str, t.Callable] = {
    + 668        "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST),
    + 669        "TRY_CONVERT": lambda self: self._parse_convert(False),
    + 670        "EXTRACT": lambda self: self._parse_extract(),
    + 671        "POSITION": lambda self: self._parse_position(),
    + 672        "SUBSTRING": lambda self: self._parse_substring(),
    + 673        "TRIM": lambda self: self._parse_trim(),
    + 674        "CAST": lambda self: self._parse_cast(self.STRICT_CAST),
    + 675        "TRY_CAST": lambda self: self._parse_cast(False),
    + 676        "STRING_AGG": lambda self: self._parse_string_agg(),
    + 677    }
    + 678
    + 679    QUERY_MODIFIER_PARSERS = {
    + 680        "match": lambda self: self._parse_match_recognize(),
    + 681        "where": lambda self: self._parse_where(),
    + 682        "group": lambda self: self._parse_group(),
    + 683        "having": lambda self: self._parse_having(),
    + 684        "qualify": lambda self: self._parse_qualify(),
    + 685        "windows": lambda self: self._parse_window_clause(),
    + 686        "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute),
    + 687        "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort),
    + 688        "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster),
    + 689        "order": lambda self: self._parse_order(),
    + 690        "limit": lambda self: self._parse_limit(),
    + 691        "offset": lambda self: self._parse_offset(),
    + 692        "lock": lambda self: self._parse_lock(),
    + 693        "sample": lambda self: self._parse_table_sample(as_modifier=True),
    + 694    }
    + 695
    + 696    SHOW_PARSERS: t.Dict[str, t.Callable] = {}
    + 697    SET_PARSERS: t.Dict[str, t.Callable] = {}
      698
    - 699    WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS}
    + 699    MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table)
      700
    - 701    ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY}
    + 701    TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"}
      702
    - 703    STRICT_CAST = True
    + 703    INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"}
      704
    - 705    __slots__ = (
    - 706        "error_level",
    - 707        "error_message_context",
    - 708        "sql",
    - 709        "errors",
    - 710        "index_offset",
    - 711        "unnest_column_only",
    - 712        "alias_post_tablesample",
    - 713        "max_errors",
    - 714        "null_ordering",
    - 715        "_tokens",
    - 716        "_index",
    - 717        "_curr",
    - 718        "_next",
    - 719        "_prev",
    - 720        "_prev_comments",
    - 721        "_show_trie",
    - 722        "_set_trie",
    - 723    )
    - 724
    - 725    def __init__(
    - 726        self,
    - 727        error_level: t.Optional[ErrorLevel] = None,
    - 728        error_message_context: int = 100,
    - 729        index_offset: int = 0,
    - 730        unnest_column_only: bool = False,
    - 731        alias_post_tablesample: bool = False,
    - 732        max_errors: int = 3,
    - 733        null_ordering: t.Optional[str] = None,
    - 734    ):
    - 735        self.error_level = error_level or ErrorLevel.IMMEDIATE
    - 736        self.error_message_context = error_message_context
    - 737        self.index_offset = index_offset
    - 738        self.unnest_column_only = unnest_column_only
    - 739        self.alias_post_tablesample = alias_post_tablesample
    - 740        self.max_errors = max_errors
    - 741        self.null_ordering = null_ordering
    - 742        self.reset()
    - 743
    - 744    def reset(self):
    - 745        self.sql = ""
    - 746        self.errors = []
    - 747        self._tokens = []
    - 748        self._index = 0
    - 749        self._curr = None
    - 750        self._next = None
    - 751        self._prev = None
    - 752        self._prev_comments = None
    - 753
    - 754    def parse(
    - 755        self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
    - 756    ) -> t.List[t.Optional[exp.Expression]]:
    - 757        """
    - 758        Parses a list of tokens and returns a list of syntax trees, one tree
    - 759        per parsed SQL statement.
    - 760
    - 761        Args:
    - 762            raw_tokens: the list of tokens.
    - 763            sql: the original SQL string, used to produce helpful debug messages.
    - 764
    - 765        Returns:
    - 766            The list of syntax trees.
    - 767        """
    - 768        return self._parse(
    - 769            parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql
    - 770        )
    - 771
    - 772    def parse_into(
    - 773        self,
    - 774        expression_types: exp.IntoType,
    - 775        raw_tokens: t.List[Token],
    - 776        sql: t.Optional[str] = None,
    - 777    ) -> t.List[t.Optional[exp.Expression]]:
    - 778        """
    - 779        Parses a list of tokens into a given Expression type. If a collection of Expression
    - 780        types is given instead, this method will try to parse the token list into each one
    - 781        of them, stopping at the first for which the parsing succeeds.
    - 782
    - 783        Args:
    - 784            expression_types: the expression type(s) to try and parse the token list into.
    - 785            raw_tokens: the list of tokens.
    - 786            sql: the original SQL string, used to produce helpful debug messages.
    - 787
    - 788        Returns:
    - 789            The target Expression.
    - 790        """
    - 791        errors = []
    - 792        for expression_type in ensure_collection(expression_types):
    - 793            parser = self.EXPRESSION_PARSERS.get(expression_type)
    - 794            if not parser:
    - 795                raise TypeError(f"No parser registered for {expression_type}")
    - 796            try:
    - 797                return self._parse(parser, raw_tokens, sql)
    - 798            except ParseError as e:
    - 799                e.errors[0]["into_expression"] = expression_type
    - 800                errors.append(e)
    - 801        raise ParseError(
    - 802            f"Failed to parse into {expression_types}",
    - 803            errors=merge_errors(errors),
    - 804        ) from errors[-1]
    - 805
    - 806    def _parse(
    - 807        self,
    - 808        parse_method: t.Callable[[Parser], t.Optional[exp.Expression]],
    - 809        raw_tokens: t.List[Token],
    - 810        sql: t.Optional[str] = None,
    - 811    ) -> t.List[t.Optional[exp.Expression]]:
    - 812        self.reset()
    - 813        self.sql = sql or ""
    - 814        total = len(raw_tokens)
    - 815        chunks: t.List[t.List[Token]] = [[]]
    - 816
    - 817        for i, token in enumerate(raw_tokens):
    - 818            if token.token_type == TokenType.SEMICOLON:
    - 819                if i < total - 1:
    - 820                    chunks.append([])
    - 821            else:
    - 822                chunks[-1].append(token)
    - 823
    - 824        expressions = []
    - 825
    - 826        for tokens in chunks:
    - 827            self._index = -1
    - 828            self._tokens = tokens
    - 829            self._advance()
    - 830
    - 831            expressions.append(parse_method(self))
    - 832
    - 833            if self._index < len(self._tokens):
    - 834                self.raise_error("Invalid expression / Unexpected token")
    - 835
    - 836            self.check_errors()
    - 837
    - 838        return expressions
    - 839
    - 840    def check_errors(self) -> None:
    - 841        """
    - 842        Logs or raises any found errors, depending on the chosen error level setting.
    - 843        """
    - 844        if self.error_level == ErrorLevel.WARN:
    - 845            for error in self.errors:
    - 846                logger.error(str(error))
    - 847        elif self.error_level == ErrorLevel.RAISE and self.errors:
    - 848            raise ParseError(
    - 849                concat_messages(self.errors, self.max_errors),
    - 850                errors=merge_errors(self.errors),
    - 851            )
    - 852
    - 853    def raise_error(self, message: str, token: t.Optional[Token] = None) -> None:
    - 854        """
    - 855        Appends an error in the list of recorded errors or raises it, depending on the chosen
    - 856        error level setting.
    - 857        """
    - 858        token = token or self._curr or self._prev or Token.string("")
    - 859        start = self._find_token(token)
    - 860        end = start + len(token.text)
    - 861        start_context = self.sql[max(start - self.error_message_context, 0) : start]
    - 862        highlight = self.sql[start:end]
    - 863        end_context = self.sql[end : end + self.error_message_context]
    - 864
    - 865        error = ParseError.new(
    - 866            f"{message}. Line {token.line}, Col: {token.col}.\n"
    - 867            f"  {start_context}\033[4m{highlight}\033[0m{end_context}",
    - 868            description=message,
    - 869            line=token.line,
    - 870            col=token.col,
    - 871            start_context=start_context,
    - 872            highlight=highlight,
    - 873            end_context=end_context,
    - 874        )
    - 875
    - 876        if self.error_level == ErrorLevel.IMMEDIATE:
    - 877            raise error
    - 878
    - 879        self.errors.append(error)
    - 880
    - 881    def expression(
    - 882        self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs
    - 883    ) -> exp.Expression:
    - 884        """
    - 885        Creates a new, validated Expression.
    + 705    WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS}
    + 706
    + 707    ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY}
    + 708
    + 709    STRICT_CAST = True
    + 710
    + 711    INTEGER_DIVISION = True
    + 712
    + 713    __slots__ = (
    + 714        "error_level",
    + 715        "error_message_context",
    + 716        "sql",
    + 717        "errors",
    + 718        "index_offset",
    + 719        "unnest_column_only",
    + 720        "alias_post_tablesample",
    + 721        "max_errors",
    + 722        "null_ordering",
    + 723        "_tokens",
    + 724        "_index",
    + 725        "_curr",
    + 726        "_next",
    + 727        "_prev",
    + 728        "_prev_comments",
    + 729        "_show_trie",
    + 730        "_set_trie",
    + 731    )
    + 732
    + 733    def __init__(
    + 734        self,
    + 735        error_level: t.Optional[ErrorLevel] = None,
    + 736        error_message_context: int = 100,
    + 737        index_offset: int = 0,
    + 738        unnest_column_only: bool = False,
    + 739        alias_post_tablesample: bool = False,
    + 740        max_errors: int = 3,
    + 741        null_ordering: t.Optional[str] = None,
    + 742    ):
    + 743        self.error_level = error_level or ErrorLevel.IMMEDIATE
    + 744        self.error_message_context = error_message_context
    + 745        self.index_offset = index_offset
    + 746        self.unnest_column_only = unnest_column_only
    + 747        self.alias_post_tablesample = alias_post_tablesample
    + 748        self.max_errors = max_errors
    + 749        self.null_ordering = null_ordering
    + 750        self.reset()
    + 751
    + 752    def reset(self):
    + 753        self.sql = ""
    + 754        self.errors = []
    + 755        self._tokens = []
    + 756        self._index = 0
    + 757        self._curr = None
    + 758        self._next = None
    + 759        self._prev = None
    + 760        self._prev_comments = None
    + 761
    + 762    def parse(
    + 763        self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
    + 764    ) -> t.List[t.Optional[exp.Expression]]:
    + 765        """
    + 766        Parses a list of tokens and returns a list of syntax trees, one tree
    + 767        per parsed SQL statement.
    + 768
    + 769        Args:
    + 770            raw_tokens: the list of tokens.
    + 771            sql: the original SQL string, used to produce helpful debug messages.
    + 772
    + 773        Returns:
    + 774            The list of syntax trees.
    + 775        """
    + 776        return self._parse(
    + 777            parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql
    + 778        )
    + 779
    + 780    def parse_into(
    + 781        self,
    + 782        expression_types: exp.IntoType,
    + 783        raw_tokens: t.List[Token],
    + 784        sql: t.Optional[str] = None,
    + 785    ) -> t.List[t.Optional[exp.Expression]]:
    + 786        """
    + 787        Parses a list of tokens into a given Expression type. If a collection of Expression
    + 788        types is given instead, this method will try to parse the token list into each one
    + 789        of them, stopping at the first for which the parsing succeeds.
    + 790
    + 791        Args:
    + 792            expression_types: the expression type(s) to try and parse the token list into.
    + 793            raw_tokens: the list of tokens.
    + 794            sql: the original SQL string, used to produce helpful debug messages.
    + 795
    + 796        Returns:
    + 797            The target Expression.
    + 798        """
    + 799        errors = []
    + 800        for expression_type in ensure_collection(expression_types):
    + 801            parser = self.EXPRESSION_PARSERS.get(expression_type)
    + 802            if not parser:
    + 803                raise TypeError(f"No parser registered for {expression_type}")
    + 804            try:
    + 805                return self._parse(parser, raw_tokens, sql)
    + 806            except ParseError as e:
    + 807                e.errors[0]["into_expression"] = expression_type
    + 808                errors.append(e)
    + 809        raise ParseError(
    + 810            f"Failed to parse into {expression_types}",
    + 811            errors=merge_errors(errors),
    + 812        ) from errors[-1]
    + 813
    + 814    def _parse(
    + 815        self,
    + 816        parse_method: t.Callable[[Parser], t.Optional[exp.Expression]],
    + 817        raw_tokens: t.List[Token],
    + 818        sql: t.Optional[str] = None,
    + 819    ) -> t.List[t.Optional[exp.Expression]]:
    + 820        self.reset()
    + 821        self.sql = sql or ""
    + 822        total = len(raw_tokens)
    + 823        chunks: t.List[t.List[Token]] = [[]]
    + 824
    + 825        for i, token in enumerate(raw_tokens):
    + 826            if token.token_type == TokenType.SEMICOLON:
    + 827                if i < total - 1:
    + 828                    chunks.append([])
    + 829            else:
    + 830                chunks[-1].append(token)
    + 831
    + 832        expressions = []
    + 833
    + 834        for tokens in chunks:
    + 835            self._index = -1
    + 836            self._tokens = tokens
    + 837            self._advance()
    + 838
    + 839            expressions.append(parse_method(self))
    + 840
    + 841            if self._index < len(self._tokens):
    + 842                self.raise_error("Invalid expression / Unexpected token")
    + 843
    + 844            self.check_errors()
    + 845
    + 846        return expressions
    + 847
    + 848    def check_errors(self) -> None:
    + 849        """
    + 850        Logs or raises any found errors, depending on the chosen error level setting.
    + 851        """
    + 852        if self.error_level == ErrorLevel.WARN:
    + 853            for error in self.errors:
    + 854                logger.error(str(error))
    + 855        elif self.error_level == ErrorLevel.RAISE and self.errors:
    + 856            raise ParseError(
    + 857                concat_messages(self.errors, self.max_errors),
    + 858                errors=merge_errors(self.errors),
    + 859            )
    + 860
    + 861    def raise_error(self, message: str, token: t.Optional[Token] = None) -> None:
    + 862        """
    + 863        Appends an error in the list of recorded errors or raises it, depending on the chosen
    + 864        error level setting.
    + 865        """
    + 866        token = token or self._curr or self._prev or Token.string("")
    + 867        start = self._find_token(token)
    + 868        end = start + len(token.text)
    + 869        start_context = self.sql[max(start - self.error_message_context, 0) : start]
    + 870        highlight = self.sql[start:end]
    + 871        end_context = self.sql[end : end + self.error_message_context]
    + 872
    + 873        error = ParseError.new(
    + 874            f"{message}. Line {token.line}, Col: {token.col}.\n"
    + 875            f"  {start_context}\033[4m{highlight}\033[0m{end_context}",
    + 876            description=message,
    + 877            line=token.line,
    + 878            col=token.col,
    + 879            start_context=start_context,
    + 880            highlight=highlight,
    + 881            end_context=end_context,
    + 882        )
    + 883
    + 884        if self.error_level == ErrorLevel.IMMEDIATE:
    + 885            raise error
      886
    - 887        Args:
    - 888            exp_class: the expression class to instantiate.
    - 889            comments: an optional list of comments to attach to the expression.
    - 890            kwargs: the arguments to set for the expression along with their respective values.
    - 891
    - 892        Returns:
    - 893            The target expression.
    - 894        """
    - 895        instance = exp_class(**kwargs)
    - 896        if self._prev_comments:
    - 897            instance.comments = self._prev_comments
    - 898            self._prev_comments = None
    - 899        if comments:
    - 900            instance.comments = comments
    - 901        self.validate_expression(instance)
    - 902        return instance
    - 903
    - 904    def validate_expression(
    - 905        self, expression: exp.Expression, args: t.Optional[t.List] = None
    - 906    ) -> None:
    - 907        """
    - 908        Validates an already instantiated expression, making sure that all its mandatory arguments
    - 909        are set.
    - 910
    - 911        Args:
    - 912            expression: the expression to validate.
    - 913            args: an optional list of items that was used to instantiate the expression, if it's a Func.
    - 914        """
    - 915        if self.error_level == ErrorLevel.IGNORE:
    - 916            return
    - 917
    - 918        for error_message in expression.error_messages(args):
    - 919            self.raise_error(error_message)
    - 920
    - 921    def _find_sql(self, start: Token, end: Token) -> str:
    - 922        return self.sql[self._find_token(start) : self._find_token(end) + len(end.text)]
    - 923
    - 924    def _find_token(self, token: Token) -> int:
    - 925        line = 1
    - 926        col = 1
    - 927        index = 0
    + 887        self.errors.append(error)
    + 888
    + 889    def expression(
    + 890        self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs
    + 891    ) -> exp.Expression:
    + 892        """
    + 893        Creates a new, validated Expression.
    + 894
    + 895        Args:
    + 896            exp_class: the expression class to instantiate.
    + 897            comments: an optional list of comments to attach to the expression.
    + 898            kwargs: the arguments to set for the expression along with their respective values.
    + 899
    + 900        Returns:
    + 901            The target expression.
    + 902        """
    + 903        instance = exp_class(**kwargs)
    + 904        if self._prev_comments:
    + 905            instance.comments = self._prev_comments
    + 906            self._prev_comments = None
    + 907        if comments:
    + 908            instance.comments = comments
    + 909        self.validate_expression(instance)
    + 910        return instance
    + 911
    + 912    def validate_expression(
    + 913        self, expression: exp.Expression, args: t.Optional[t.List] = None
    + 914    ) -> None:
    + 915        """
    + 916        Validates an already instantiated expression, making sure that all its mandatory arguments
    + 917        are set.
    + 918
    + 919        Args:
    + 920            expression: the expression to validate.
    + 921            args: an optional list of items that was used to instantiate the expression, if it's a Func.
    + 922        """
    + 923        if self.error_level == ErrorLevel.IGNORE:
    + 924            return
    + 925
    + 926        for error_message in expression.error_messages(args):
    + 927            self.raise_error(error_message)
      928
    - 929        while line < token.line or col < token.col:
    - 930            if Tokenizer.WHITE_SPACE.get(self.sql[index]) == TokenType.BREAK:
    - 931                line += 1
    - 932                col = 1
    - 933            else:
    - 934                col += 1
    - 935            index += 1
    + 929    def _find_sql(self, start: Token, end: Token) -> str:
    + 930        return self.sql[self._find_token(start) : self._find_token(end) + len(end.text)]
    + 931
    + 932    def _find_token(self, token: Token) -> int:
    + 933        line = 1
    + 934        col = 1
    + 935        index = 0
      936
    - 937        return index
    - 938
    - 939    def _advance(self, times: int = 1) -> None:
    - 940        self._index += times
    - 941        self._curr = seq_get(self._tokens, self._index)
    - 942        self._next = seq_get(self._tokens, self._index + 1)
    - 943        if self._index > 0:
    - 944            self._prev = self._tokens[self._index - 1]
    - 945            self._prev_comments = self._prev.comments
    - 946        else:
    - 947            self._prev = None
    - 948            self._prev_comments = None
    - 949
    - 950    def _retreat(self, index: int) -> None:
    - 951        self._advance(index - self._index)
    - 952
    - 953    def _parse_command(self) -> exp.Expression:
    - 954        return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string())
    - 955
    - 956    def _parse_comment(self, allow_exists: bool = True) -> exp.Expression:
    - 957        start = self._prev
    - 958        exists = self._parse_exists() if allow_exists else None
    - 959
    - 960        self._match(TokenType.ON)
    + 937        while line < token.line or col < token.col:
    + 938            if Tokenizer.WHITE_SPACE.get(self.sql[index]) == TokenType.BREAK:
    + 939                line += 1
    + 940                col = 1
    + 941            else:
    + 942                col += 1
    + 943            index += 1
    + 944
    + 945        return index
    + 946
    + 947    def _advance(self, times: int = 1) -> None:
    + 948        self._index += times
    + 949        self._curr = seq_get(self._tokens, self._index)
    + 950        self._next = seq_get(self._tokens, self._index + 1)
    + 951        if self._index > 0:
    + 952            self._prev = self._tokens[self._index - 1]
    + 953            self._prev_comments = self._prev.comments
    + 954        else:
    + 955            self._prev = None
    + 956            self._prev_comments = None
    + 957
    + 958    def _retreat(self, index: int) -> None:
    + 959        if index != self._index:
    + 960            self._advance(index - self._index)
      961
    - 962        kind = self._match_set(self.CREATABLES) and self._prev
    - 963
    - 964        if not kind:
    - 965            return self._parse_as_command(start)
    - 966
    - 967        if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE):
    - 968            this = self._parse_user_defined_function(kind=kind.token_type)
    - 969        elif kind.token_type == TokenType.TABLE:
    - 970            this = self._parse_table()
    - 971        elif kind.token_type == TokenType.COLUMN:
    - 972            this = self._parse_column()
    - 973        else:
    - 974            this = self._parse_id_var()
    + 962    def _parse_command(self) -> exp.Expression:
    + 963        return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string())
    + 964
    + 965    def _parse_comment(self, allow_exists: bool = True) -> exp.Expression:
    + 966        start = self._prev
    + 967        exists = self._parse_exists() if allow_exists else None
    + 968
    + 969        self._match(TokenType.ON)
    + 970
    + 971        kind = self._match_set(self.CREATABLES) and self._prev
    + 972
    + 973        if not kind:
    + 974            return self._parse_as_command(start)
      975
    - 976        self._match(TokenType.IS)
    - 977
    - 978        return self.expression(
    - 979            exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists
    - 980        )
    - 981
    - 982    def _parse_statement(self) -> t.Optional[exp.Expression]:
    - 983        if self._curr is None:
    - 984            return None
    - 985
    - 986        if self._match_set(self.STATEMENT_PARSERS):
    - 987            return self.STATEMENT_PARSERS[self._prev.token_type](self)
    - 988
    - 989        if self._match_set(Tokenizer.COMMANDS):
    - 990            return self._parse_command()
    - 991
    - 992        expression = self._parse_expression()
    - 993        expression = self._parse_set_operations(expression) if expression else self._parse_select()
    + 976        if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE):
    + 977            this = self._parse_user_defined_function(kind=kind.token_type)
    + 978        elif kind.token_type == TokenType.TABLE:
    + 979            this = self._parse_table()
    + 980        elif kind.token_type == TokenType.COLUMN:
    + 981            this = self._parse_column()
    + 982        else:
    + 983            this = self._parse_id_var()
    + 984
    + 985        self._match(TokenType.IS)
    + 986
    + 987        return self.expression(
    + 988            exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists
    + 989        )
    + 990
    + 991    def _parse_statement(self) -> t.Optional[exp.Expression]:
    + 992        if self._curr is None:
    + 993            return None
      994
    - 995        self._parse_query_modifiers(expression)
    - 996        return expression
    + 995        if self._match_set(self.STATEMENT_PARSERS):
    + 996            return self.STATEMENT_PARSERS[self._prev.token_type](self)
      997
    - 998    def _parse_drop(self, default_kind: t.Optional[str] = None) -> t.Optional[exp.Expression]:
    - 999        start = self._prev
    -1000        temporary = self._match(TokenType.TEMPORARY)
    -1001        materialized = self._match(TokenType.MATERIALIZED)
    -1002        kind = self._match_set(self.CREATABLES) and self._prev.text
    -1003        if not kind:
    -1004            if default_kind:
    -1005                kind = default_kind
    -1006            else:
    -1007                return self._parse_as_command(start)
    -1008
    -1009        return self.expression(
    -1010            exp.Drop,
    -1011            exists=self._parse_exists(),
    -1012            this=self._parse_table(schema=True),
    -1013            kind=kind,
    -1014            temporary=temporary,
    -1015            materialized=materialized,
    -1016            cascade=self._match(TokenType.CASCADE),
    -1017        )
    -1018
    -1019    def _parse_exists(self, not_: bool = False) -> t.Optional[bool]:
    -1020        return (
    -1021            self._match(TokenType.IF)
    -1022            and (not not_ or self._match(TokenType.NOT))
    -1023            and self._match(TokenType.EXISTS)
    -1024        )
    -1025
    -1026    def _parse_create(self) -> t.Optional[exp.Expression]:
    -1027        start = self._prev
    -1028        replace = self._prev.text.upper() == "REPLACE" or self._match_pair(
    -1029            TokenType.OR, TokenType.REPLACE
    -1030        )
    -1031        unique = self._match(TokenType.UNIQUE)
    -1032        volatile = self._match(TokenType.VOLATILE)
    -1033
    -1034        if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False):
    -1035            self._match(TokenType.TABLE)
    -1036
    -1037        properties = None
    -1038        create_token = self._match_set(self.CREATABLES) and self._prev
    -1039
    -1040        if not create_token:
    -1041            properties = self._parse_properties()  # exp.Properties.Location.POST_CREATE
    -1042            create_token = self._match_set(self.CREATABLES) and self._prev
    -1043
    -1044            if not properties or not create_token:
    -1045                return self._parse_as_command(start)
    -1046
    -1047        exists = self._parse_exists(not_=True)
    -1048        this = None
    -1049        expression = None
    -1050        indexes = None
    -1051        no_schema_binding = None
    -1052        begin = None
    -1053
    -1054        if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE):
    -1055            this = self._parse_user_defined_function(kind=create_token.token_type)
    -1056            temp_properties = self._parse_properties()
    -1057            if properties and temp_properties:
    -1058                properties.expressions.extend(temp_properties.expressions)
    -1059            elif temp_properties:
    -1060                properties = temp_properties
    -1061
    -1062            self._match(TokenType.ALIAS)
    -1063            begin = self._match(TokenType.BEGIN)
    -1064            return_ = self._match_text_seq("RETURN")
    -1065            expression = self._parse_statement()
    -1066
    -1067            if return_:
    -1068                expression = self.expression(exp.Return, this=expression)
    -1069        elif create_token.token_type == TokenType.INDEX:
    -1070            this = self._parse_index()
    -1071        elif create_token.token_type in self.DB_CREATABLES:
    -1072            table_parts = self._parse_table_parts(schema=True)
    -1073
    -1074            # exp.Properties.Location.POST_NAME
    -1075            if self._match(TokenType.COMMA):
    -1076                temp_properties = self._parse_properties(before=True)
    -1077                if properties and temp_properties:
    -1078                    properties.expressions.extend(temp_properties.expressions)
    -1079                elif temp_properties:
    -1080                    properties = temp_properties
    -1081
    -1082            this = self._parse_schema(this=table_parts)
    -1083
    -1084            # exp.Properties.Location.POST_SCHEMA and POST_WITH
    -1085            temp_properties = self._parse_properties()
    -1086            if properties and temp_properties:
    -1087                properties.expressions.extend(temp_properties.expressions)
    -1088            elif temp_properties:
    -1089                properties = temp_properties
    + 998        if self._match_set(Tokenizer.COMMANDS):
    + 999            return self._parse_command()
    +1000
    +1001        expression = self._parse_expression()
    +1002        expression = self._parse_set_operations(expression) if expression else self._parse_select()
    +1003
    +1004        self._parse_query_modifiers(expression)
    +1005        return expression
    +1006
    +1007    def _parse_drop(self, default_kind: t.Optional[str] = None) -> t.Optional[exp.Expression]:
    +1008        start = self._prev
    +1009        temporary = self._match(TokenType.TEMPORARY)
    +1010        materialized = self._match(TokenType.MATERIALIZED)
    +1011        kind = self._match_set(self.CREATABLES) and self._prev.text
    +1012        if not kind:
    +1013            if default_kind:
    +1014                kind = default_kind
    +1015            else:
    +1016                return self._parse_as_command(start)
    +1017
    +1018        return self.expression(
    +1019            exp.Drop,
    +1020            exists=self._parse_exists(),
    +1021            this=self._parse_table(schema=True),
    +1022            kind=kind,
    +1023            temporary=temporary,
    +1024            materialized=materialized,
    +1025            cascade=self._match(TokenType.CASCADE),
    +1026        )
    +1027
    +1028    def _parse_exists(self, not_: bool = False) -> t.Optional[bool]:
    +1029        return (
    +1030            self._match(TokenType.IF)
    +1031            and (not not_ or self._match(TokenType.NOT))
    +1032            and self._match(TokenType.EXISTS)
    +1033        )
    +1034
    +1035    def _parse_create(self) -> t.Optional[exp.Expression]:
    +1036        start = self._prev
    +1037        replace = self._prev.text.upper() == "REPLACE" or self._match_pair(
    +1038            TokenType.OR, TokenType.REPLACE
    +1039        )
    +1040        unique = self._match(TokenType.UNIQUE)
    +1041        volatile = self._match(TokenType.VOLATILE)
    +1042
    +1043        if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False):
    +1044            self._match(TokenType.TABLE)
    +1045
    +1046        properties = None
    +1047        create_token = self._match_set(self.CREATABLES) and self._prev
    +1048
    +1049        if not create_token:
    +1050            properties = self._parse_properties()  # exp.Properties.Location.POST_CREATE
    +1051            create_token = self._match_set(self.CREATABLES) and self._prev
    +1052
    +1053            if not properties or not create_token:
    +1054                return self._parse_as_command(start)
    +1055
    +1056        exists = self._parse_exists(not_=True)
    +1057        this = None
    +1058        expression = None
    +1059        indexes = None
    +1060        no_schema_binding = None
    +1061        begin = None
    +1062
    +1063        if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE):
    +1064            this = self._parse_user_defined_function(kind=create_token.token_type)
    +1065            temp_properties = self._parse_properties()
    +1066            if properties and temp_properties:
    +1067                properties.expressions.extend(temp_properties.expressions)
    +1068            elif temp_properties:
    +1069                properties = temp_properties
    +1070
    +1071            self._match(TokenType.ALIAS)
    +1072            begin = self._match(TokenType.BEGIN)
    +1073            return_ = self._match_text_seq("RETURN")
    +1074            expression = self._parse_statement()
    +1075
    +1076            if return_:
    +1077                expression = self.expression(exp.Return, this=expression)
    +1078        elif create_token.token_type == TokenType.INDEX:
    +1079            this = self._parse_index()
    +1080        elif create_token.token_type in self.DB_CREATABLES:
    +1081            table_parts = self._parse_table_parts(schema=True)
    +1082
    +1083            # exp.Properties.Location.POST_NAME
    +1084            if self._match(TokenType.COMMA):
    +1085                temp_properties = self._parse_properties(before=True)
    +1086                if properties and temp_properties:
    +1087                    properties.expressions.extend(temp_properties.expressions)
    +1088                elif temp_properties:
    +1089                    properties = temp_properties
     1090
    -1091            self._match(TokenType.ALIAS)
    +1091            this = self._parse_schema(this=table_parts)
     1092
    -1093            # exp.Properties.Location.POST_ALIAS
    -1094            if not (
    -1095                self._match(TokenType.SELECT, advance=False)
    -1096                or self._match(TokenType.WITH, advance=False)
    -1097                or self._match(TokenType.L_PAREN, advance=False)
    -1098            ):
    -1099                temp_properties = self._parse_properties()
    -1100                if properties and temp_properties:
    -1101                    properties.expressions.extend(temp_properties.expressions)
    -1102                elif temp_properties:
    -1103                    properties = temp_properties
    -1104
    -1105            expression = self._parse_ddl_select()
    -1106
    -1107            if create_token.token_type == TokenType.TABLE:
    -1108                # exp.Properties.Location.POST_EXPRESSION
    -1109                temp_properties = self._parse_properties()
    -1110                if properties and temp_properties:
    -1111                    properties.expressions.extend(temp_properties.expressions)
    -1112                elif temp_properties:
    -1113                    properties = temp_properties
    -1114
    -1115                indexes = []
    -1116                while True:
    -1117                    index = self._parse_create_table_index()
    -1118
    -1119                    # exp.Properties.Location.POST_INDEX
    -1120                    if self._match(TokenType.PARTITION_BY, advance=False):
    -1121                        temp_properties = self._parse_properties()
    -1122                        if properties and temp_properties:
    -1123                            properties.expressions.extend(temp_properties.expressions)
    -1124                        elif temp_properties:
    -1125                            properties = temp_properties
    -1126
    -1127                    if not index:
    -1128                        break
    -1129                    else:
    -1130                        indexes.append(index)
    -1131            elif create_token.token_type == TokenType.VIEW:
    -1132                if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"):
    -1133                    no_schema_binding = True
    -1134
    -1135        return self.expression(
    -1136            exp.Create,
    -1137            this=this,
    -1138            kind=create_token.text,
    -1139            replace=replace,
    -1140            unique=unique,
    -1141            volatile=volatile,
    -1142            expression=expression,
    -1143            exists=exists,
    -1144            properties=properties,
    -1145            indexes=indexes,
    -1146            no_schema_binding=no_schema_binding,
    -1147            begin=begin,
    -1148        )
    -1149
    -1150    def _parse_property_before(self) -> t.Optional[exp.Expression]:
    -1151        self._match(TokenType.COMMA)
    -1152
    -1153        # parsers look to _prev for no/dual/default, so need to consume first
    -1154        self._match_text_seq("NO")
    -1155        self._match_text_seq("DUAL")
    -1156        self._match_text_seq("DEFAULT")
    -1157
    -1158        if self.PROPERTY_PARSERS.get(self._curr.text.upper()):
    -1159            return self.PROPERTY_PARSERS[self._curr.text.upper()](self)
    -1160
    -1161        return None
    -1162
    -1163    def _parse_property(self) -> t.Optional[exp.Expression]:
    -1164        if self._match_texts(self.PROPERTY_PARSERS):
    -1165            return self.PROPERTY_PARSERS[self._prev.text.upper()](self)
    +1093            # exp.Properties.Location.POST_SCHEMA and POST_WITH
    +1094            temp_properties = self._parse_properties()
    +1095            if properties and temp_properties:
    +1096                properties.expressions.extend(temp_properties.expressions)
    +1097            elif temp_properties:
    +1098                properties = temp_properties
    +1099
    +1100            self._match(TokenType.ALIAS)
    +1101
    +1102            # exp.Properties.Location.POST_ALIAS
    +1103            if not (
    +1104                self._match(TokenType.SELECT, advance=False)
    +1105                or self._match(TokenType.WITH, advance=False)
    +1106                or self._match(TokenType.L_PAREN, advance=False)
    +1107            ):
    +1108                temp_properties = self._parse_properties()
    +1109                if properties and temp_properties:
    +1110                    properties.expressions.extend(temp_properties.expressions)
    +1111                elif temp_properties:
    +1112                    properties = temp_properties
    +1113
    +1114            expression = self._parse_ddl_select()
    +1115
    +1116            if create_token.token_type == TokenType.TABLE:
    +1117                # exp.Properties.Location.POST_EXPRESSION
    +1118                temp_properties = self._parse_properties()
    +1119                if properties and temp_properties:
    +1120                    properties.expressions.extend(temp_properties.expressions)
    +1121                elif temp_properties:
    +1122                    properties = temp_properties
    +1123
    +1124                indexes = []
    +1125                while True:
    +1126                    index = self._parse_create_table_index()
    +1127
    +1128                    # exp.Properties.Location.POST_INDEX
    +1129                    if self._match(TokenType.PARTITION_BY, advance=False):
    +1130                        temp_properties = self._parse_properties()
    +1131                        if properties and temp_properties:
    +1132                            properties.expressions.extend(temp_properties.expressions)
    +1133                        elif temp_properties:
    +1134                            properties = temp_properties
    +1135
    +1136                    if not index:
    +1137                        break
    +1138                    else:
    +1139                        indexes.append(index)
    +1140            elif create_token.token_type == TokenType.VIEW:
    +1141                if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"):
    +1142                    no_schema_binding = True
    +1143
    +1144        return self.expression(
    +1145            exp.Create,
    +1146            this=this,
    +1147            kind=create_token.text,
    +1148            replace=replace,
    +1149            unique=unique,
    +1150            volatile=volatile,
    +1151            expression=expression,
    +1152            exists=exists,
    +1153            properties=properties,
    +1154            indexes=indexes,
    +1155            no_schema_binding=no_schema_binding,
    +1156            begin=begin,
    +1157        )
    +1158
    +1159    def _parse_property_before(self) -> t.Optional[exp.Expression]:
    +1160        self._match(TokenType.COMMA)
    +1161
    +1162        # parsers look to _prev for no/dual/default, so need to consume first
    +1163        self._match_text_seq("NO")
    +1164        self._match_text_seq("DUAL")
    +1165        self._match_text_seq("DEFAULT")
     1166
    -1167        if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET):
    -1168            return self._parse_character_set(default=True)
    +1167        if self.PROPERTY_PARSERS.get(self._curr.text.upper()):
    +1168            return self.PROPERTY_PARSERS[self._curr.text.upper()](self)
     1169
    -1170        if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY):
    -1171            return self._parse_sortkey(compound=True)
    -1172
    -1173        if self._match_text_seq("SQL", "SECURITY"):
    -1174            return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER"))
    +1170        return None
    +1171
    +1172    def _parse_property(self) -> t.Optional[exp.Expression]:
    +1173        if self._match_texts(self.PROPERTY_PARSERS):
    +1174            return self.PROPERTY_PARSERS[self._prev.text.upper()](self)
     1175
    -1176        assignment = self._match_pair(
    -1177            TokenType.VAR, TokenType.EQ, advance=False
    -1178        ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False)
    -1179
    -1180        if assignment:
    -1181            key = self._parse_var_or_string()
    -1182            self._match(TokenType.EQ)
    -1183            return self.expression(exp.Property, this=key, value=self._parse_column())
    +1176        if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET):
    +1177            return self._parse_character_set(default=True)
    +1178
    +1179        if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY):
    +1180            return self._parse_sortkey(compound=True)
    +1181
    +1182        if self._match_text_seq("SQL", "SECURITY"):
    +1183            return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER"))
     1184
    -1185        return None
    -1186
    -1187    def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression:
    -1188        self._match(TokenType.EQ)
    -1189        self._match(TokenType.ALIAS)
    -1190        return self.expression(
    -1191            exp_class,
    -1192            this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(),
    -1193        )
    -1194
    -1195    def _parse_properties(self, before=None) -> t.Optional[exp.Expression]:
    -1196        properties = []
    -1197
    -1198        while True:
    -1199            if before:
    -1200                identified_property = self._parse_property_before()
    -1201            else:
    -1202                identified_property = self._parse_property()
    +1185        assignment = self._match_pair(
    +1186            TokenType.VAR, TokenType.EQ, advance=False
    +1187        ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False)
    +1188
    +1189        if assignment:
    +1190            key = self._parse_var_or_string()
    +1191            self._match(TokenType.EQ)
    +1192            return self.expression(exp.Property, this=key, value=self._parse_column())
    +1193
    +1194        return None
    +1195
    +1196    def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression:
    +1197        self._match(TokenType.EQ)
    +1198        self._match(TokenType.ALIAS)
    +1199        return self.expression(
    +1200            exp_class,
    +1201            this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(),
    +1202        )
     1203
    -1204            if not identified_property:
    -1205                break
    -1206            for p in ensure_collection(identified_property):
    -1207                properties.append(p)
    -1208
    -1209        if properties:
    -1210            return self.expression(exp.Properties, expressions=properties)
    -1211
    -1212        return None
    -1213
    -1214    def _parse_fallback(self, no=False) -> exp.Expression:
    -1215        self._match_text_seq("FALLBACK")
    -1216        return self.expression(
    -1217            exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION")
    -1218        )
    -1219
    -1220    def _parse_with_property(
    -1221        self,
    -1222    ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]:
    -1223        self._match(TokenType.WITH)
    -1224        if self._match(TokenType.L_PAREN, advance=False):
    -1225            return self._parse_wrapped_csv(self._parse_property)
    -1226
    -1227        if self._match_text_seq("JOURNAL"):
    -1228            return self._parse_withjournaltable()
    -1229
    -1230        if self._match_text_seq("DATA"):
    -1231            return self._parse_withdata(no=False)
    -1232        elif self._match_text_seq("NO", "DATA"):
    -1233            return self._parse_withdata(no=True)
    -1234
    -1235        if not self._next:
    -1236            return None
    -1237
    -1238        return self._parse_withisolatedloading()
    -1239
    -1240    # https://dev.mysql.com/doc/refman/8.0/en/create-view.html
    -1241    def _parse_definer(self) -> t.Optional[exp.Expression]:
    -1242        self._match(TokenType.EQ)
    +1204    def _parse_properties(self, before=None) -> t.Optional[exp.Expression]:
    +1205        properties = []
    +1206
    +1207        while True:
    +1208            if before:
    +1209                identified_property = self._parse_property_before()
    +1210            else:
    +1211                identified_property = self._parse_property()
    +1212
    +1213            if not identified_property:
    +1214                break
    +1215            for p in ensure_collection(identified_property):
    +1216                properties.append(p)
    +1217
    +1218        if properties:
    +1219            return self.expression(exp.Properties, expressions=properties)
    +1220
    +1221        return None
    +1222
    +1223    def _parse_fallback(self, no=False) -> exp.Expression:
    +1224        self._match_text_seq("FALLBACK")
    +1225        return self.expression(
    +1226            exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION")
    +1227        )
    +1228
    +1229    def _parse_with_property(
    +1230        self,
    +1231    ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]:
    +1232        self._match(TokenType.WITH)
    +1233        if self._match(TokenType.L_PAREN, advance=False):
    +1234            return self._parse_wrapped_csv(self._parse_property)
    +1235
    +1236        if self._match_text_seq("JOURNAL"):
    +1237            return self._parse_withjournaltable()
    +1238
    +1239        if self._match_text_seq("DATA"):
    +1240            return self._parse_withdata(no=False)
    +1241        elif self._match_text_seq("NO", "DATA"):
    +1242            return self._parse_withdata(no=True)
     1243
    -1244        user = self._parse_id_var()
    -1245        self._match(TokenType.PARAMETER)
    -1246        host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text)
    -1247
    -1248        if not user or not host:
    -1249            return None
    -1250
    -1251        return exp.DefinerProperty(this=f"{user}@{host}")
    +1244        if not self._next:
    +1245            return None
    +1246
    +1247        return self._parse_withisolatedloading()
    +1248
    +1249    # https://dev.mysql.com/doc/refman/8.0/en/create-view.html
    +1250    def _parse_definer(self) -> t.Optional[exp.Expression]:
    +1251        self._match(TokenType.EQ)
     1252
    -1253    def _parse_withjournaltable(self) -> exp.Expression:
    -1254        self._match(TokenType.TABLE)
    -1255        self._match(TokenType.EQ)
    -1256        return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts())
    -1257
    -1258    def _parse_log(self, no=False) -> exp.Expression:
    -1259        self._match_text_seq("LOG")
    -1260        return self.expression(exp.LogProperty, no=no)
    +1253        user = self._parse_id_var()
    +1254        self._match(TokenType.PARAMETER)
    +1255        host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text)
    +1256
    +1257        if not user or not host:
    +1258            return None
    +1259
    +1260        return exp.DefinerProperty(this=f"{user}@{host}")
     1261
    -1262    def _parse_journal(self, no=False, dual=False) -> exp.Expression:
    -1263        before = self._match_text_seq("BEFORE")
    -1264        self._match_text_seq("JOURNAL")
    -1265        return self.expression(exp.JournalProperty, no=no, dual=dual, before=before)
    +1262    def _parse_withjournaltable(self) -> exp.Expression:
    +1263        self._match(TokenType.TABLE)
    +1264        self._match(TokenType.EQ)
    +1265        return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts())
     1266
    -1267    def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression:
    -1268        self._match_text_seq("NOT")
    -1269        self._match_text_seq("LOCAL")
    -1270        self._match_text_seq("AFTER", "JOURNAL")
    -1271        return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local)
    -1272
    -1273    def _parse_checksum(self) -> exp.Expression:
    -1274        self._match_text_seq("CHECKSUM")
    -1275        self._match(TokenType.EQ)
    -1276
    -1277        on = None
    -1278        if self._match(TokenType.ON):
    -1279            on = True
    -1280        elif self._match_text_seq("OFF"):
    -1281            on = False
    -1282        default = self._match(TokenType.DEFAULT)
    -1283
    -1284        return self.expression(
    -1285            exp.ChecksumProperty,
    -1286            on=on,
    -1287            default=default,
    -1288        )
    -1289
    -1290    def _parse_freespace(self) -> exp.Expression:
    -1291        self._match_text_seq("FREESPACE")
    -1292        self._match(TokenType.EQ)
    +1267    def _parse_log(self, no=False) -> exp.Expression:
    +1268        self._match_text_seq("LOG")
    +1269        return self.expression(exp.LogProperty, no=no)
    +1270
    +1271    def _parse_journal(self, no=False, dual=False) -> exp.Expression:
    +1272        before = self._match_text_seq("BEFORE")
    +1273        self._match_text_seq("JOURNAL")
    +1274        return self.expression(exp.JournalProperty, no=no, dual=dual, before=before)
    +1275
    +1276    def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression:
    +1277        self._match_text_seq("NOT")
    +1278        self._match_text_seq("LOCAL")
    +1279        self._match_text_seq("AFTER", "JOURNAL")
    +1280        return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local)
    +1281
    +1282    def _parse_checksum(self) -> exp.Expression:
    +1283        self._match_text_seq("CHECKSUM")
    +1284        self._match(TokenType.EQ)
    +1285
    +1286        on = None
    +1287        if self._match(TokenType.ON):
    +1288            on = True
    +1289        elif self._match_text_seq("OFF"):
    +1290            on = False
    +1291        default = self._match(TokenType.DEFAULT)
    +1292
     1293        return self.expression(
    -1294            exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT)
    -1295        )
    -1296
    -1297    def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression:
    -1298        self._match_text_seq("MERGEBLOCKRATIO")
    -1299        if self._match(TokenType.EQ):
    -1300            return self.expression(
    -1301                exp.MergeBlockRatioProperty,
    -1302                this=self._parse_number(),
    -1303                percent=self._match(TokenType.PERCENT),
    -1304            )
    -1305        else:
    -1306            return self.expression(
    -1307                exp.MergeBlockRatioProperty,
    -1308                no=no,
    -1309                default=default,
    -1310            )
    -1311
    -1312    def _parse_datablocksize(self, default=None) -> exp.Expression:
    -1313        if default:
    -1314            self._match_text_seq("DATABLOCKSIZE")
    -1315            return self.expression(exp.DataBlocksizeProperty, default=True)
    -1316        elif self._match_texts(("MIN", "MINIMUM")):
    -1317            self._match_text_seq("DATABLOCKSIZE")
    -1318            return self.expression(exp.DataBlocksizeProperty, min=True)
    -1319        elif self._match_texts(("MAX", "MAXIMUM")):
    -1320            self._match_text_seq("DATABLOCKSIZE")
    -1321            return self.expression(exp.DataBlocksizeProperty, min=False)
    -1322
    -1323        self._match_text_seq("DATABLOCKSIZE")
    -1324        self._match(TokenType.EQ)
    -1325        size = self._parse_number()
    -1326        units = None
    -1327        if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")):
    -1328            units = self._prev.text
    -1329        return self.expression(exp.DataBlocksizeProperty, size=size, units=units)
    -1330
    -1331    def _parse_blockcompression(self) -> exp.Expression:
    -1332        self._match_text_seq("BLOCKCOMPRESSION")
    +1294            exp.ChecksumProperty,
    +1295            on=on,
    +1296            default=default,
    +1297        )
    +1298
    +1299    def _parse_freespace(self) -> exp.Expression:
    +1300        self._match_text_seq("FREESPACE")
    +1301        self._match(TokenType.EQ)
    +1302        return self.expression(
    +1303            exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT)
    +1304        )
    +1305
    +1306    def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression:
    +1307        self._match_text_seq("MERGEBLOCKRATIO")
    +1308        if self._match(TokenType.EQ):
    +1309            return self.expression(
    +1310                exp.MergeBlockRatioProperty,
    +1311                this=self._parse_number(),
    +1312                percent=self._match(TokenType.PERCENT),
    +1313            )
    +1314        else:
    +1315            return self.expression(
    +1316                exp.MergeBlockRatioProperty,
    +1317                no=no,
    +1318                default=default,
    +1319            )
    +1320
    +1321    def _parse_datablocksize(self, default=None) -> exp.Expression:
    +1322        if default:
    +1323            self._match_text_seq("DATABLOCKSIZE")
    +1324            return self.expression(exp.DataBlocksizeProperty, default=True)
    +1325        elif self._match_texts(("MIN", "MINIMUM")):
    +1326            self._match_text_seq("DATABLOCKSIZE")
    +1327            return self.expression(exp.DataBlocksizeProperty, min=True)
    +1328        elif self._match_texts(("MAX", "MAXIMUM")):
    +1329            self._match_text_seq("DATABLOCKSIZE")
    +1330            return self.expression(exp.DataBlocksizeProperty, min=False)
    +1331
    +1332        self._match_text_seq("DATABLOCKSIZE")
     1333        self._match(TokenType.EQ)
    -1334        always = self._match_text_seq("ALWAYS")
    -1335        manual = self._match_text_seq("MANUAL")
    -1336        never = self._match_text_seq("NEVER")
    -1337        default = self._match_text_seq("DEFAULT")
    -1338        autotemp = None
    -1339        if self._match_text_seq("AUTOTEMP"):
    -1340            autotemp = self._parse_schema()
    -1341
    -1342        return self.expression(
    -1343            exp.BlockCompressionProperty,
    -1344            always=always,
    -1345            manual=manual,
    -1346            never=never,
    -1347            default=default,
    -1348            autotemp=autotemp,
    -1349        )
    +1334        size = self._parse_number()
    +1335        units = None
    +1336        if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")):
    +1337            units = self._prev.text
    +1338        return self.expression(exp.DataBlocksizeProperty, size=size, units=units)
    +1339
    +1340    def _parse_blockcompression(self) -> exp.Expression:
    +1341        self._match_text_seq("BLOCKCOMPRESSION")
    +1342        self._match(TokenType.EQ)
    +1343        always = self._match_text_seq("ALWAYS")
    +1344        manual = self._match_text_seq("MANUAL")
    +1345        never = self._match_text_seq("NEVER")
    +1346        default = self._match_text_seq("DEFAULT")
    +1347        autotemp = None
    +1348        if self._match_text_seq("AUTOTEMP"):
    +1349            autotemp = self._parse_schema()
     1350
    -1351    def _parse_withisolatedloading(self) -> exp.Expression:
    -1352        no = self._match_text_seq("NO")
    -1353        concurrent = self._match_text_seq("CONCURRENT")
    -1354        self._match_text_seq("ISOLATED", "LOADING")
    -1355        for_all = self._match_text_seq("FOR", "ALL")
    -1356        for_insert = self._match_text_seq("FOR", "INSERT")
    -1357        for_none = self._match_text_seq("FOR", "NONE")
    -1358        return self.expression(
    -1359            exp.IsolatedLoadingProperty,
    -1360            no=no,
    -1361            concurrent=concurrent,
    -1362            for_all=for_all,
    -1363            for_insert=for_insert,
    -1364            for_none=for_none,
    -1365        )
    -1366
    -1367    def _parse_locking(self) -> exp.Expression:
    -1368        if self._match(TokenType.TABLE):
    -1369            kind = "TABLE"
    -1370        elif self._match(TokenType.VIEW):
    -1371            kind = "VIEW"
    -1372        elif self._match(TokenType.ROW):
    -1373            kind = "ROW"
    -1374        elif self._match_text_seq("DATABASE"):
    -1375            kind = "DATABASE"
    -1376        else:
    -1377            kind = None
    -1378
    -1379        if kind in ("DATABASE", "TABLE", "VIEW"):
    -1380            this = self._parse_table_parts()
    -1381        else:
    -1382            this = None
    -1383
    -1384        if self._match(TokenType.FOR):
    -1385            for_or_in = "FOR"
    -1386        elif self._match(TokenType.IN):
    -1387            for_or_in = "IN"
    -1388        else:
    -1389            for_or_in = None
    -1390
    -1391        if self._match_text_seq("ACCESS"):
    -1392            lock_type = "ACCESS"
    -1393        elif self._match_texts(("EXCL", "EXCLUSIVE")):
    -1394            lock_type = "EXCLUSIVE"
    -1395        elif self._match_text_seq("SHARE"):
    -1396            lock_type = "SHARE"
    -1397        elif self._match_text_seq("READ"):
    -1398            lock_type = "READ"
    -1399        elif self._match_text_seq("WRITE"):
    -1400            lock_type = "WRITE"
    -1401        elif self._match_text_seq("CHECKSUM"):
    -1402            lock_type = "CHECKSUM"
    -1403        else:
    -1404            lock_type = None
    -1405
    -1406        override = self._match_text_seq("OVERRIDE")
    -1407
    -1408        return self.expression(
    -1409            exp.LockingProperty,
    -1410            this=this,
    -1411            kind=kind,
    -1412            for_or_in=for_or_in,
    -1413            lock_type=lock_type,
    -1414            override=override,
    -1415        )
    +1351        return self.expression(
    +1352            exp.BlockCompressionProperty,
    +1353            always=always,
    +1354            manual=manual,
    +1355            never=never,
    +1356            default=default,
    +1357            autotemp=autotemp,
    +1358        )
    +1359
    +1360    def _parse_withisolatedloading(self) -> exp.Expression:
    +1361        no = self._match_text_seq("NO")
    +1362        concurrent = self._match_text_seq("CONCURRENT")
    +1363        self._match_text_seq("ISOLATED", "LOADING")
    +1364        for_all = self._match_text_seq("FOR", "ALL")
    +1365        for_insert = self._match_text_seq("FOR", "INSERT")
    +1366        for_none = self._match_text_seq("FOR", "NONE")
    +1367        return self.expression(
    +1368            exp.IsolatedLoadingProperty,
    +1369            no=no,
    +1370            concurrent=concurrent,
    +1371            for_all=for_all,
    +1372            for_insert=for_insert,
    +1373            for_none=for_none,
    +1374        )
    +1375
    +1376    def _parse_locking(self) -> exp.Expression:
    +1377        if self._match(TokenType.TABLE):
    +1378            kind = "TABLE"
    +1379        elif self._match(TokenType.VIEW):
    +1380            kind = "VIEW"
    +1381        elif self._match(TokenType.ROW):
    +1382            kind = "ROW"
    +1383        elif self._match_text_seq("DATABASE"):
    +1384            kind = "DATABASE"
    +1385        else:
    +1386            kind = None
    +1387
    +1388        if kind in ("DATABASE", "TABLE", "VIEW"):
    +1389            this = self._parse_table_parts()
    +1390        else:
    +1391            this = None
    +1392
    +1393        if self._match(TokenType.FOR):
    +1394            for_or_in = "FOR"
    +1395        elif self._match(TokenType.IN):
    +1396            for_or_in = "IN"
    +1397        else:
    +1398            for_or_in = None
    +1399
    +1400        if self._match_text_seq("ACCESS"):
    +1401            lock_type = "ACCESS"
    +1402        elif self._match_texts(("EXCL", "EXCLUSIVE")):
    +1403            lock_type = "EXCLUSIVE"
    +1404        elif self._match_text_seq("SHARE"):
    +1405            lock_type = "SHARE"
    +1406        elif self._match_text_seq("READ"):
    +1407            lock_type = "READ"
    +1408        elif self._match_text_seq("WRITE"):
    +1409            lock_type = "WRITE"
    +1410        elif self._match_text_seq("CHECKSUM"):
    +1411            lock_type = "CHECKSUM"
    +1412        else:
    +1413            lock_type = None
    +1414
    +1415        override = self._match_text_seq("OVERRIDE")
     1416
    -1417    def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]:
    -1418        if self._match(TokenType.PARTITION_BY):
    -1419            return self._parse_csv(self._parse_conjunction)
    -1420        return []
    -1421
    -1422    def _parse_partitioned_by(self) -> exp.Expression:
    -1423        self._match(TokenType.EQ)
    -1424        return self.expression(
    -1425            exp.PartitionedByProperty,
    -1426            this=self._parse_schema() or self._parse_bracket(self._parse_field()),
    -1427        )
    -1428
    -1429    def _parse_withdata(self, no=False) -> exp.Expression:
    -1430        if self._match_text_seq("AND", "STATISTICS"):
    -1431            statistics = True
    -1432        elif self._match_text_seq("AND", "NO", "STATISTICS"):
    -1433            statistics = False
    -1434        else:
    -1435            statistics = None
    -1436
    -1437        return self.expression(exp.WithDataProperty, no=no, statistics=statistics)
    -1438
    -1439    def _parse_noprimaryindex(self) -> exp.Expression:
    -1440        self._match_text_seq("PRIMARY", "INDEX")
    -1441        return exp.NoPrimaryIndexProperty()
    -1442
    -1443    def _parse_oncommit(self) -> exp.Expression:
    -1444        self._match_text_seq("COMMIT", "PRESERVE", "ROWS")
    -1445        return exp.OnCommitProperty()
    -1446
    -1447    def _parse_distkey(self) -> exp.Expression:
    -1448        return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var))
    -1449
    -1450    def _parse_create_like(self) -> t.Optional[exp.Expression]:
    -1451        table = self._parse_table(schema=True)
    -1452        options = []
    -1453        while self._match_texts(("INCLUDING", "EXCLUDING")):
    -1454            this = self._prev.text.upper()
    -1455            id_var = self._parse_id_var()
    -1456
    -1457            if not id_var:
    -1458                return None
    -1459
    -1460            options.append(
    -1461                self.expression(
    -1462                    exp.Property,
    -1463                    this=this,
    -1464                    value=exp.Var(this=id_var.this.upper()),
    -1465                )
    -1466            )
    -1467        return self.expression(exp.LikeProperty, this=table, expressions=options)
    +1417        return self.expression(
    +1418            exp.LockingProperty,
    +1419            this=this,
    +1420            kind=kind,
    +1421            for_or_in=for_or_in,
    +1422            lock_type=lock_type,
    +1423            override=override,
    +1424        )
    +1425
    +1426    def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]:
    +1427        if self._match(TokenType.PARTITION_BY):
    +1428            return self._parse_csv(self._parse_conjunction)
    +1429        return []
    +1430
    +1431    def _parse_partitioned_by(self) -> exp.Expression:
    +1432        self._match(TokenType.EQ)
    +1433        return self.expression(
    +1434            exp.PartitionedByProperty,
    +1435            this=self._parse_schema() or self._parse_bracket(self._parse_field()),
    +1436        )
    +1437
    +1438    def _parse_withdata(self, no=False) -> exp.Expression:
    +1439        if self._match_text_seq("AND", "STATISTICS"):
    +1440            statistics = True
    +1441        elif self._match_text_seq("AND", "NO", "STATISTICS"):
    +1442            statistics = False
    +1443        else:
    +1444            statistics = None
    +1445
    +1446        return self.expression(exp.WithDataProperty, no=no, statistics=statistics)
    +1447
    +1448    def _parse_noprimaryindex(self) -> exp.Expression:
    +1449        self._match_text_seq("PRIMARY", "INDEX")
    +1450        return exp.NoPrimaryIndexProperty()
    +1451
    +1452    def _parse_oncommit(self) -> exp.Expression:
    +1453        self._match_text_seq("COMMIT", "PRESERVE", "ROWS")
    +1454        return exp.OnCommitProperty()
    +1455
    +1456    def _parse_distkey(self) -> exp.Expression:
    +1457        return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var))
    +1458
    +1459    def _parse_create_like(self) -> t.Optional[exp.Expression]:
    +1460        table = self._parse_table(schema=True)
    +1461        options = []
    +1462        while self._match_texts(("INCLUDING", "EXCLUDING")):
    +1463            this = self._prev.text.upper()
    +1464            id_var = self._parse_id_var()
    +1465
    +1466            if not id_var:
    +1467                return None
     1468
    -1469    def _parse_sortkey(self, compound: bool = False) -> exp.Expression:
    -1470        return self.expression(
    -1471            exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound
    -1472        )
    -1473
    -1474    def _parse_character_set(self, default: bool = False) -> exp.Expression:
    -1475        self._match(TokenType.EQ)
    -1476        return self.expression(
    -1477            exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default
    -1478        )
    -1479
    -1480    def _parse_returns(self) -> exp.Expression:
    -1481        value: t.Optional[exp.Expression]
    -1482        is_table = self._match(TokenType.TABLE)
    -1483
    -1484        if is_table:
    -1485            if self._match(TokenType.LT):
    -1486                value = self.expression(
    -1487                    exp.Schema,
    -1488                    this="TABLE",
    -1489                    expressions=self._parse_csv(self._parse_struct_kwargs),
    -1490                )
    -1491                if not self._match(TokenType.GT):
    -1492                    self.raise_error("Expecting >")
    -1493            else:
    -1494                value = self._parse_schema(exp.Var(this="TABLE"))
    -1495        else:
    -1496            value = self._parse_types()
    -1497
    -1498        return self.expression(exp.ReturnsProperty, this=value, is_table=is_table)
    -1499
    -1500    def _parse_temporary(self, global_=False) -> exp.Expression:
    -1501        self._match(TokenType.TEMPORARY)  # in case calling from "GLOBAL"
    -1502        return self.expression(exp.TemporaryProperty, global_=global_)
    -1503
    -1504    def _parse_describe(self) -> exp.Expression:
    -1505        kind = self._match_set(self.CREATABLES) and self._prev.text
    -1506        this = self._parse_table()
    -1507
    -1508        return self.expression(exp.Describe, this=this, kind=kind)
    -1509
    -1510    def _parse_insert(self) -> exp.Expression:
    -1511        overwrite = self._match(TokenType.OVERWRITE)
    -1512        local = self._match(TokenType.LOCAL)
    -1513
    -1514        this: t.Optional[exp.Expression]
    -1515
    -1516        alternative = None
    -1517        if self._match_text_seq("DIRECTORY"):
    -1518            this = self.expression(
    -1519                exp.Directory,
    -1520                this=self._parse_var_or_string(),
    -1521                local=local,
    -1522                row_format=self._parse_row_format(match_row=True),
    -1523            )
    -1524        else:
    -1525            if self._match(TokenType.OR):
    -1526                alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text
    -1527
    -1528            self._match(TokenType.INTO)
    -1529            self._match(TokenType.TABLE)
    -1530            this = self._parse_table(schema=True)
    -1531
    -1532        return self.expression(
    -1533            exp.Insert,
    -1534            this=this,
    -1535            exists=self._parse_exists(),
    -1536            partition=self._parse_partition(),
    -1537            expression=self._parse_ddl_select(),
    -1538            overwrite=overwrite,
    -1539            alternative=alternative,
    -1540        )
    -1541
    -1542    def _parse_row(self) -> t.Optional[exp.Expression]:
    -1543        if not self._match(TokenType.FORMAT):
    -1544            return None
    -1545        return self._parse_row_format()
    -1546
    -1547    def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]:
    -1548        if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT):
    -1549            return None
    -1550
    -1551        if self._match_text_seq("SERDE"):
    -1552            return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string())
    +1469            options.append(
    +1470                self.expression(
    +1471                    exp.Property,
    +1472                    this=this,
    +1473                    value=exp.Var(this=id_var.this.upper()),
    +1474                )
    +1475            )
    +1476        return self.expression(exp.LikeProperty, this=table, expressions=options)
    +1477
    +1478    def _parse_sortkey(self, compound: bool = False) -> exp.Expression:
    +1479        return self.expression(
    +1480            exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound
    +1481        )
    +1482
    +1483    def _parse_character_set(self, default: bool = False) -> exp.Expression:
    +1484        self._match(TokenType.EQ)
    +1485        return self.expression(
    +1486            exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default
    +1487        )
    +1488
    +1489    def _parse_returns(self) -> exp.Expression:
    +1490        value: t.Optional[exp.Expression]
    +1491        is_table = self._match(TokenType.TABLE)
    +1492
    +1493        if is_table:
    +1494            if self._match(TokenType.LT):
    +1495                value = self.expression(
    +1496                    exp.Schema,
    +1497                    this="TABLE",
    +1498                    expressions=self._parse_csv(self._parse_struct_kwargs),
    +1499                )
    +1500                if not self._match(TokenType.GT):
    +1501                    self.raise_error("Expecting >")
    +1502            else:
    +1503                value = self._parse_schema(exp.Var(this="TABLE"))
    +1504        else:
    +1505            value = self._parse_types()
    +1506
    +1507        return self.expression(exp.ReturnsProperty, this=value, is_table=is_table)
    +1508
    +1509    def _parse_temporary(self, global_=False) -> exp.Expression:
    +1510        self._match(TokenType.TEMPORARY)  # in case calling from "GLOBAL"
    +1511        return self.expression(exp.TemporaryProperty, global_=global_)
    +1512
    +1513    def _parse_describe(self) -> exp.Expression:
    +1514        kind = self._match_set(self.CREATABLES) and self._prev.text
    +1515        this = self._parse_table()
    +1516
    +1517        return self.expression(exp.Describe, this=this, kind=kind)
    +1518
    +1519    def _parse_insert(self) -> exp.Expression:
    +1520        overwrite = self._match(TokenType.OVERWRITE)
    +1521        local = self._match(TokenType.LOCAL)
    +1522        alternative = None
    +1523
    +1524        if self._match_text_seq("DIRECTORY"):
    +1525            this: t.Optional[exp.Expression] = self.expression(
    +1526                exp.Directory,
    +1527                this=self._parse_var_or_string(),
    +1528                local=local,
    +1529                row_format=self._parse_row_format(match_row=True),
    +1530            )
    +1531        else:
    +1532            if self._match(TokenType.OR):
    +1533                alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text
    +1534
    +1535            self._match(TokenType.INTO)
    +1536            self._match(TokenType.TABLE)
    +1537            this = self._parse_table(schema=True)
    +1538
    +1539        return self.expression(
    +1540            exp.Insert,
    +1541            this=this,
    +1542            exists=self._parse_exists(),
    +1543            partition=self._parse_partition(),
    +1544            expression=self._parse_ddl_select(),
    +1545            returning=self._parse_returning(),
    +1546            overwrite=overwrite,
    +1547            alternative=alternative,
    +1548        )
    +1549
    +1550    def _parse_returning(self) -> t.Optional[exp.Expression]:
    +1551        if not self._match(TokenType.RETURNING):
    +1552            return None
     1553
    -1554        self._match_text_seq("DELIMITED")
    +1554        return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column))
     1555
    -1556        kwargs = {}
    -1557
    -1558        if self._match_text_seq("FIELDS", "TERMINATED", "BY"):
    -1559            kwargs["fields"] = self._parse_string()
    -1560            if self._match_text_seq("ESCAPED", "BY"):
    -1561                kwargs["escaped"] = self._parse_string()
    -1562        if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"):
    -1563            kwargs["collection_items"] = self._parse_string()
    -1564        if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"):
    -1565            kwargs["map_keys"] = self._parse_string()
    -1566        if self._match_text_seq("LINES", "TERMINATED", "BY"):
    -1567            kwargs["lines"] = self._parse_string()
    -1568        if self._match_text_seq("NULL", "DEFINED", "AS"):
    -1569            kwargs["null"] = self._parse_string()
    -1570
    -1571        return self.expression(exp.RowFormatDelimitedProperty, **kwargs)  # type: ignore
    -1572
    -1573    def _parse_load_data(self) -> exp.Expression:
    -1574        local = self._match(TokenType.LOCAL)
    -1575        self._match_text_seq("INPATH")
    -1576        inpath = self._parse_string()
    -1577        overwrite = self._match(TokenType.OVERWRITE)
    -1578        self._match_pair(TokenType.INTO, TokenType.TABLE)
    -1579
    -1580        return self.expression(
    -1581            exp.LoadData,
    -1582            this=self._parse_table(schema=True),
    -1583            local=local,
    -1584            overwrite=overwrite,
    -1585            inpath=inpath,
    -1586            partition=self._parse_partition(),
    -1587            input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(),
    -1588            serde=self._match_text_seq("SERDE") and self._parse_string(),
    -1589        )
    -1590
    -1591    def _parse_delete(self) -> exp.Expression:
    -1592        self._match(TokenType.FROM)
    +1556    def _parse_row(self) -> t.Optional[exp.Expression]:
    +1557        if not self._match(TokenType.FORMAT):
    +1558            return None
    +1559        return self._parse_row_format()
    +1560
    +1561    def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]:
    +1562        if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT):
    +1563            return None
    +1564
    +1565        if self._match_text_seq("SERDE"):
    +1566            return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string())
    +1567
    +1568        self._match_text_seq("DELIMITED")
    +1569
    +1570        kwargs = {}
    +1571
    +1572        if self._match_text_seq("FIELDS", "TERMINATED", "BY"):
    +1573            kwargs["fields"] = self._parse_string()
    +1574            if self._match_text_seq("ESCAPED", "BY"):
    +1575                kwargs["escaped"] = self._parse_string()
    +1576        if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"):
    +1577            kwargs["collection_items"] = self._parse_string()
    +1578        if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"):
    +1579            kwargs["map_keys"] = self._parse_string()
    +1580        if self._match_text_seq("LINES", "TERMINATED", "BY"):
    +1581            kwargs["lines"] = self._parse_string()
    +1582        if self._match_text_seq("NULL", "DEFINED", "AS"):
    +1583            kwargs["null"] = self._parse_string()
    +1584
    +1585        return self.expression(exp.RowFormatDelimitedProperty, **kwargs)  # type: ignore
    +1586
    +1587    def _parse_load_data(self) -> exp.Expression:
    +1588        local = self._match(TokenType.LOCAL)
    +1589        self._match_text_seq("INPATH")
    +1590        inpath = self._parse_string()
    +1591        overwrite = self._match(TokenType.OVERWRITE)
    +1592        self._match_pair(TokenType.INTO, TokenType.TABLE)
     1593
     1594        return self.expression(
    -1595            exp.Delete,
    +1595            exp.LoadData,
     1596            this=self._parse_table(schema=True),
    -1597            using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()),
    -1598            where=self._parse_where(),
    -1599        )
    -1600
    -1601    def _parse_update(self) -> exp.Expression:
    -1602        return self.expression(
    -1603            exp.Update,
    -1604            **{  # type: ignore
    -1605                "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS),
    -1606                "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality),
    -1607                "from": self._parse_from(),
    -1608                "where": self._parse_where(),
    -1609            },
    -1610        )
    -1611
    -1612    def _parse_uncache(self) -> exp.Expression:
    -1613        if not self._match(TokenType.TABLE):
    -1614            self.raise_error("Expecting TABLE after UNCACHE")
    +1597            local=local,
    +1598            overwrite=overwrite,
    +1599            inpath=inpath,
    +1600            partition=self._parse_partition(),
    +1601            input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(),
    +1602            serde=self._match_text_seq("SERDE") and self._parse_string(),
    +1603        )
    +1604
    +1605    def _parse_delete(self) -> exp.Expression:
    +1606        self._match(TokenType.FROM)
    +1607
    +1608        return self.expression(
    +1609            exp.Delete,
    +1610            this=self._parse_table(schema=True),
    +1611            using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()),
    +1612            where=self._parse_where(),
    +1613            returning=self._parse_returning(),
    +1614        )
     1615
    -1616        return self.expression(
    -1617            exp.Uncache,
    -1618            exists=self._parse_exists(),
    -1619            this=self._parse_table(schema=True),
    -1620        )
    -1621
    -1622    def _parse_cache(self) -> exp.Expression:
    -1623        lazy = self._match(TokenType.LAZY)
    -1624        self._match(TokenType.TABLE)
    -1625        table = self._parse_table(schema=True)
    -1626        options = []
    +1616    def _parse_update(self) -> exp.Expression:
    +1617        return self.expression(
    +1618            exp.Update,
    +1619            **{  # type: ignore
    +1620                "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS),
    +1621                "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality),
    +1622                "from": self._parse_from(),
    +1623                "where": self._parse_where(),
    +1624                "returning": self._parse_returning(),
    +1625            },
    +1626        )
     1627
    -1628        if self._match(TokenType.OPTIONS):
    -1629            self._match_l_paren()
    -1630            k = self._parse_string()
    -1631            self._match(TokenType.EQ)
    -1632            v = self._parse_string()
    -1633            options = [k, v]
    -1634            self._match_r_paren()
    -1635
    -1636        self._match(TokenType.ALIAS)
    -1637        return self.expression(
    -1638            exp.Cache,
    -1639            this=table,
    -1640            lazy=lazy,
    -1641            options=options,
    -1642            expression=self._parse_select(nested=True),
    -1643        )
    -1644
    -1645    def _parse_partition(self) -> t.Optional[exp.Expression]:
    -1646        if not self._match(TokenType.PARTITION):
    -1647            return None
    -1648
    -1649        return self.expression(
    -1650            exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction)
    -1651        )
    -1652
    -1653    def _parse_value(self) -> exp.Expression:
    -1654        if self._match(TokenType.L_PAREN):
    -1655            expressions = self._parse_csv(self._parse_conjunction)
    -1656            self._match_r_paren()
    -1657            return self.expression(exp.Tuple, expressions=expressions)
    -1658
    -1659        # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows.
    -1660        # Source: https://prestodb.io/docs/current/sql/values.html
    -1661        return self.expression(exp.Tuple, expressions=[self._parse_conjunction()])
    -1662
    -1663    def _parse_select(
    -1664        self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True
    -1665    ) -> t.Optional[exp.Expression]:
    -1666        cte = self._parse_with()
    -1667        if cte:
    -1668            this = self._parse_statement()
    -1669
    -1670            if not this:
    -1671                self.raise_error("Failed to parse any statement following CTE")
    -1672                return cte
    -1673
    -1674            if "with" in this.arg_types:
    -1675                this.set("with", cte)
    -1676            else:
    -1677                self.raise_error(f"{this.key} does not support CTE")
    -1678                this = cte
    -1679        elif self._match(TokenType.SELECT):
    -1680            comments = self._prev_comments
    -1681
    -1682            hint = self._parse_hint()
    -1683            all_ = self._match(TokenType.ALL)
    -1684            distinct = self._match(TokenType.DISTINCT)
    +1628    def _parse_uncache(self) -> exp.Expression:
    +1629        if not self._match(TokenType.TABLE):
    +1630            self.raise_error("Expecting TABLE after UNCACHE")
    +1631
    +1632        return self.expression(
    +1633            exp.Uncache,
    +1634            exists=self._parse_exists(),
    +1635            this=self._parse_table(schema=True),
    +1636        )
    +1637
    +1638    def _parse_cache(self) -> exp.Expression:
    +1639        lazy = self._match(TokenType.LAZY)
    +1640        self._match(TokenType.TABLE)
    +1641        table = self._parse_table(schema=True)
    +1642        options = []
    +1643
    +1644        if self._match(TokenType.OPTIONS):
    +1645            self._match_l_paren()
    +1646            k = self._parse_string()
    +1647            self._match(TokenType.EQ)
    +1648            v = self._parse_string()
    +1649            options = [k, v]
    +1650            self._match_r_paren()
    +1651
    +1652        self._match(TokenType.ALIAS)
    +1653        return self.expression(
    +1654            exp.Cache,
    +1655            this=table,
    +1656            lazy=lazy,
    +1657            options=options,
    +1658            expression=self._parse_select(nested=True),
    +1659        )
    +1660
    +1661    def _parse_partition(self) -> t.Optional[exp.Expression]:
    +1662        if not self._match(TokenType.PARTITION):
    +1663            return None
    +1664
    +1665        return self.expression(
    +1666            exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction)
    +1667        )
    +1668
    +1669    def _parse_value(self) -> exp.Expression:
    +1670        if self._match(TokenType.L_PAREN):
    +1671            expressions = self._parse_csv(self._parse_conjunction)
    +1672            self._match_r_paren()
    +1673            return self.expression(exp.Tuple, expressions=expressions)
    +1674
    +1675        # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows.
    +1676        # Source: https://prestodb.io/docs/current/sql/values.html
    +1677        return self.expression(exp.Tuple, expressions=[self._parse_conjunction()])
    +1678
    +1679    def _parse_select(
    +1680        self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True
    +1681    ) -> t.Optional[exp.Expression]:
    +1682        cte = self._parse_with()
    +1683        if cte:
    +1684            this = self._parse_statement()
     1685
    -1686            if distinct:
    -1687                distinct = self.expression(
    -1688                    exp.Distinct,
    -1689                    on=self._parse_value() if self._match(TokenType.ON) else None,
    -1690                )
    -1691
    -1692            if all_ and distinct:
    -1693                self.raise_error("Cannot specify both ALL and DISTINCT after SELECT")
    -1694
    -1695            limit = self._parse_limit(top=True)
    -1696            expressions = self._parse_csv(self._parse_expression)
    +1686            if not this:
    +1687                self.raise_error("Failed to parse any statement following CTE")
    +1688                return cte
    +1689
    +1690            if "with" in this.arg_types:
    +1691                this.set("with", cte)
    +1692            else:
    +1693                self.raise_error(f"{this.key} does not support CTE")
    +1694                this = cte
    +1695        elif self._match(TokenType.SELECT):
    +1696            comments = self._prev_comments
     1697
    -1698            this = self.expression(
    -1699                exp.Select,
    -1700                hint=hint,
    -1701                distinct=distinct,
    -1702                expressions=expressions,
    -1703                limit=limit,
    -1704            )
    -1705            this.comments = comments
    -1706
    -1707            into = self._parse_into()
    -1708            if into:
    -1709                this.set("into", into)
    +1698            hint = self._parse_hint()
    +1699            all_ = self._match(TokenType.ALL)
    +1700            distinct = self._match(TokenType.DISTINCT)
    +1701
    +1702            if distinct:
    +1703                distinct = self.expression(
    +1704                    exp.Distinct,
    +1705                    on=self._parse_value() if self._match(TokenType.ON) else None,
    +1706                )
    +1707
    +1708            if all_ and distinct:
    +1709                self.raise_error("Cannot specify both ALL and DISTINCT after SELECT")
     1710
    -1711            from_ = self._parse_from()
    -1712            if from_:
    -1713                this.set("from", from_)
    -1714
    -1715            self._parse_query_modifiers(this)
    -1716        elif (table or nested) and self._match(TokenType.L_PAREN):
    -1717            this = self._parse_table() if table else self._parse_select(nested=True)
    -1718            self._parse_query_modifiers(this)
    -1719            this = self._parse_set_operations(this)
    -1720            self._match_r_paren()
    -1721
    -1722            # early return so that subquery unions aren't parsed again
    -1723            # SELECT * FROM (SELECT 1) UNION ALL SELECT 1
    -1724            # Union ALL should be a property of the top select node, not the subquery
    -1725            return self._parse_subquery(this, parse_alias=parse_subquery_alias)
    -1726        elif self._match(TokenType.VALUES):
    -1727            this = self.expression(
    -1728                exp.Values,
    -1729                expressions=self._parse_csv(self._parse_value),
    -1730                alias=self._parse_table_alias(),
    -1731            )
    -1732        else:
    -1733            this = None
    -1734
    -1735        return self._parse_set_operations(this)
    -1736
    -1737    def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]:
    -1738        if not skip_with_token and not self._match(TokenType.WITH):
    -1739            return None
    -1740
    -1741        recursive = self._match(TokenType.RECURSIVE)
    -1742
    -1743        expressions = []
    -1744        while True:
    -1745            expressions.append(self._parse_cte())
    -1746
    -1747            if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH):
    -1748                break
    -1749            else:
    -1750                self._match(TokenType.WITH)
    -1751
    -1752        return self.expression(exp.With, expressions=expressions, recursive=recursive)
    -1753
    -1754    def _parse_cte(self) -> exp.Expression:
    -1755        alias = self._parse_table_alias()
    -1756        if not alias or not alias.this:
    -1757            self.raise_error("Expected CTE to have alias")
    +1711            limit = self._parse_limit(top=True)
    +1712            expressions = self._parse_csv(self._parse_expression)
    +1713
    +1714            this = self.expression(
    +1715                exp.Select,
    +1716                hint=hint,
    +1717                distinct=distinct,
    +1718                expressions=expressions,
    +1719                limit=limit,
    +1720            )
    +1721            this.comments = comments
    +1722
    +1723            into = self._parse_into()
    +1724            if into:
    +1725                this.set("into", into)
    +1726
    +1727            from_ = self._parse_from()
    +1728            if from_:
    +1729                this.set("from", from_)
    +1730
    +1731            self._parse_query_modifiers(this)
    +1732        elif (table or nested) and self._match(TokenType.L_PAREN):
    +1733            this = self._parse_table() if table else self._parse_select(nested=True)
    +1734            self._parse_query_modifiers(this)
    +1735            this = self._parse_set_operations(this)
    +1736            self._match_r_paren()
    +1737
    +1738            # early return so that subquery unions aren't parsed again
    +1739            # SELECT * FROM (SELECT 1) UNION ALL SELECT 1
    +1740            # Union ALL should be a property of the top select node, not the subquery
    +1741            return self._parse_subquery(this, parse_alias=parse_subquery_alias)
    +1742        elif self._match(TokenType.VALUES):
    +1743            this = self.expression(
    +1744                exp.Values,
    +1745                expressions=self._parse_csv(self._parse_value),
    +1746                alias=self._parse_table_alias(),
    +1747            )
    +1748        else:
    +1749            this = None
    +1750
    +1751        return self._parse_set_operations(this)
    +1752
    +1753    def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]:
    +1754        if not skip_with_token and not self._match(TokenType.WITH):
    +1755            return None
    +1756
    +1757        recursive = self._match(TokenType.RECURSIVE)
     1758
    -1759        self._match(TokenType.ALIAS)
    -1760
    -1761        return self.expression(
    -1762            exp.CTE,
    -1763            this=self._parse_wrapped(self._parse_statement),
    -1764            alias=alias,
    -1765        )
    -1766
    -1767    def _parse_table_alias(
    -1768        self, alias_tokens: t.Optional[t.Collection[TokenType]] = None
    -1769    ) -> t.Optional[exp.Expression]:
    -1770        any_token = self._match(TokenType.ALIAS)
    -1771        alias = self._parse_id_var(
    -1772            any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS
    -1773        )
    -1774        index = self._index
    -1775
    -1776        if self._match(TokenType.L_PAREN):
    -1777            columns = self._parse_csv(self._parse_function_parameter)
    -1778            self._match_r_paren() if columns else self._retreat(index)
    -1779        else:
    -1780            columns = None
    -1781
    -1782        if not alias and not columns:
    -1783            return None
    -1784
    -1785        return self.expression(exp.TableAlias, this=alias, columns=columns)
    -1786
    -1787    def _parse_subquery(
    -1788        self, this: t.Optional[exp.Expression], parse_alias: bool = True
    -1789    ) -> exp.Expression:
    -1790        return self.expression(
    -1791            exp.Subquery,
    -1792            this=this,
    -1793            pivots=self._parse_pivots(),
    -1794            alias=self._parse_table_alias() if parse_alias else None,
    -1795        )
    -1796
    -1797    def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None:
    -1798        if not isinstance(this, self.MODIFIABLES):
    -1799            return
    +1759        expressions = []
    +1760        while True:
    +1761            expressions.append(self._parse_cte())
    +1762
    +1763            if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH):
    +1764                break
    +1765            else:
    +1766                self._match(TokenType.WITH)
    +1767
    +1768        return self.expression(exp.With, expressions=expressions, recursive=recursive)
    +1769
    +1770    def _parse_cte(self) -> exp.Expression:
    +1771        alias = self._parse_table_alias()
    +1772        if not alias or not alias.this:
    +1773            self.raise_error("Expected CTE to have alias")
    +1774
    +1775        self._match(TokenType.ALIAS)
    +1776
    +1777        return self.expression(
    +1778            exp.CTE,
    +1779            this=self._parse_wrapped(self._parse_statement),
    +1780            alias=alias,
    +1781        )
    +1782
    +1783    def _parse_table_alias(
    +1784        self, alias_tokens: t.Optional[t.Collection[TokenType]] = None
    +1785    ) -> t.Optional[exp.Expression]:
    +1786        any_token = self._match(TokenType.ALIAS)
    +1787        alias = self._parse_id_var(
    +1788            any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS
    +1789        )
    +1790        index = self._index
    +1791
    +1792        if self._match(TokenType.L_PAREN):
    +1793            columns = self._parse_csv(self._parse_function_parameter)
    +1794            self._match_r_paren() if columns else self._retreat(index)
    +1795        else:
    +1796            columns = None
    +1797
    +1798        if not alias and not columns:
    +1799            return None
     1800
    -1801        table = isinstance(this, exp.Table)
    +1801        return self.expression(exp.TableAlias, this=alias, columns=columns)
     1802
    -1803        while True:
    -1804            lateral = self._parse_lateral()
    -1805            join = self._parse_join()
    -1806            comma = None if table else self._match(TokenType.COMMA)
    -1807            if lateral:
    -1808                this.append("laterals", lateral)
    -1809            if join:
    -1810                this.append("joins", join)
    -1811            if comma:
    -1812                this.args["from"].append("expressions", self._parse_table())
    -1813            if not (lateral or join or comma):
    -1814                break
    -1815
    -1816        for key, parser in self.QUERY_MODIFIER_PARSERS.items():
    -1817            expression = parser(self)
    +1803    def _parse_subquery(
    +1804        self, this: t.Optional[exp.Expression], parse_alias: bool = True
    +1805    ) -> exp.Expression:
    +1806        return self.expression(
    +1807            exp.Subquery,
    +1808            this=this,
    +1809            pivots=self._parse_pivots(),
    +1810            alias=self._parse_table_alias() if parse_alias else None,
    +1811        )
    +1812
    +1813    def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None:
    +1814        if not isinstance(this, self.MODIFIABLES):
    +1815            return
    +1816
    +1817        table = isinstance(this, exp.Table)
     1818
    -1819            if expression:
    -1820                this.set(key, expression)
    -1821
    -1822    def _parse_hint(self) -> t.Optional[exp.Expression]:
    -1823        if self._match(TokenType.HINT):
    -1824            hints = self._parse_csv(self._parse_function)
    -1825            if not self._match_pair(TokenType.STAR, TokenType.SLASH):
    -1826                self.raise_error("Expected */ after HINT")
    -1827            return self.expression(exp.Hint, expressions=hints)
    -1828
    -1829        return None
    -1830
    -1831    def _parse_into(self) -> t.Optional[exp.Expression]:
    -1832        if not self._match(TokenType.INTO):
    -1833            return None
    +1819        while True:
    +1820            lateral = self._parse_lateral()
    +1821            join = self._parse_join()
    +1822            comma = None if table else self._match(TokenType.COMMA)
    +1823            if lateral:
    +1824                this.append("laterals", lateral)
    +1825            if join:
    +1826                this.append("joins", join)
    +1827            if comma:
    +1828                this.args["from"].append("expressions", self._parse_table())
    +1829            if not (lateral or join or comma):
    +1830                break
    +1831
    +1832        for key, parser in self.QUERY_MODIFIER_PARSERS.items():
    +1833            expression = parser(self)
     1834
    -1835        temp = self._match(TokenType.TEMPORARY)
    -1836        unlogged = self._match(TokenType.UNLOGGED)
    -1837        self._match(TokenType.TABLE)
    -1838
    -1839        return self.expression(
    -1840            exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged
    -1841        )
    -1842
    -1843    def _parse_from(self) -> t.Optional[exp.Expression]:
    -1844        if not self._match(TokenType.FROM):
    -1845            return None
    +1835            if expression:
    +1836                this.set(key, expression)
    +1837
    +1838    def _parse_hint(self) -> t.Optional[exp.Expression]:
    +1839        if self._match(TokenType.HINT):
    +1840            hints = self._parse_csv(self._parse_function)
    +1841            if not self._match_pair(TokenType.STAR, TokenType.SLASH):
    +1842                self.raise_error("Expected */ after HINT")
    +1843            return self.expression(exp.Hint, expressions=hints)
    +1844
    +1845        return None
     1846
    -1847        return self.expression(
    -1848            exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table)
    -1849        )
    +1847    def _parse_into(self) -> t.Optional[exp.Expression]:
    +1848        if not self._match(TokenType.INTO):
    +1849            return None
     1850
    -1851    def _parse_match_recognize(self) -> t.Optional[exp.Expression]:
    -1852        if not self._match(TokenType.MATCH_RECOGNIZE):
    -1853            return None
    -1854        self._match_l_paren()
    -1855
    -1856        partition = self._parse_partition_by()
    -1857        order = self._parse_order()
    -1858        measures = (
    -1859            self._parse_alias(self._parse_conjunction())
    -1860            if self._match_text_seq("MEASURES")
    -1861            else None
    -1862        )
    -1863
    -1864        if self._match_text_seq("ONE", "ROW", "PER", "MATCH"):
    -1865            rows = exp.Var(this="ONE ROW PER MATCH")
    -1866        elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"):
    -1867            text = "ALL ROWS PER MATCH"
    -1868            if self._match_text_seq("SHOW", "EMPTY", "MATCHES"):
    -1869                text += f" SHOW EMPTY MATCHES"
    -1870            elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"):
    -1871                text += f" OMIT EMPTY MATCHES"
    -1872            elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"):
    -1873                text += f" WITH UNMATCHED ROWS"
    -1874            rows = exp.Var(this=text)
    -1875        else:
    -1876            rows = None
    -1877
    -1878        if self._match_text_seq("AFTER", "MATCH", "SKIP"):
    -1879            text = "AFTER MATCH SKIP"
    -1880            if self._match_text_seq("PAST", "LAST", "ROW"):
    -1881                text += f" PAST LAST ROW"
    -1882            elif self._match_text_seq("TO", "NEXT", "ROW"):
    -1883                text += f" TO NEXT ROW"
    -1884            elif self._match_text_seq("TO", "FIRST"):
    -1885                text += f" TO FIRST {self._advance_any().text}"  # type: ignore
    -1886            elif self._match_text_seq("TO", "LAST"):
    -1887                text += f" TO LAST {self._advance_any().text}"  # type: ignore
    -1888            after = exp.Var(this=text)
    -1889        else:
    -1890            after = None
    -1891
    -1892        if self._match_text_seq("PATTERN"):
    -1893            self._match_l_paren()
    -1894
    -1895            if not self._curr:
    -1896                self.raise_error("Expecting )", self._curr)
    -1897
    -1898            paren = 1
    -1899            start = self._curr
    -1900
    -1901            while self._curr and paren > 0:
    -1902                if self._curr.token_type == TokenType.L_PAREN:
    -1903                    paren += 1
    -1904                if self._curr.token_type == TokenType.R_PAREN:
    -1905                    paren -= 1
    -1906                end = self._prev
    -1907                self._advance()
    -1908            if paren > 0:
    -1909                self.raise_error("Expecting )", self._curr)
    -1910            pattern = exp.Var(this=self._find_sql(start, end))
    -1911        else:
    -1912            pattern = None
    +1851        temp = self._match(TokenType.TEMPORARY)
    +1852        unlogged = self._match(TokenType.UNLOGGED)
    +1853        self._match(TokenType.TABLE)
    +1854
    +1855        return self.expression(
    +1856            exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged
    +1857        )
    +1858
    +1859    def _parse_from(self) -> t.Optional[exp.Expression]:
    +1860        if not self._match(TokenType.FROM):
    +1861            return None
    +1862
    +1863        return self.expression(
    +1864            exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table)
    +1865        )
    +1866
    +1867    def _parse_match_recognize(self) -> t.Optional[exp.Expression]:
    +1868        if not self._match(TokenType.MATCH_RECOGNIZE):
    +1869            return None
    +1870        self._match_l_paren()
    +1871
    +1872        partition = self._parse_partition_by()
    +1873        order = self._parse_order()
    +1874        measures = (
    +1875            self._parse_alias(self._parse_conjunction())
    +1876            if self._match_text_seq("MEASURES")
    +1877            else None
    +1878        )
    +1879
    +1880        if self._match_text_seq("ONE", "ROW", "PER", "MATCH"):
    +1881            rows = exp.Var(this="ONE ROW PER MATCH")
    +1882        elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"):
    +1883            text = "ALL ROWS PER MATCH"
    +1884            if self._match_text_seq("SHOW", "EMPTY", "MATCHES"):
    +1885                text += f" SHOW EMPTY MATCHES"
    +1886            elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"):
    +1887                text += f" OMIT EMPTY MATCHES"
    +1888            elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"):
    +1889                text += f" WITH UNMATCHED ROWS"
    +1890            rows = exp.Var(this=text)
    +1891        else:
    +1892            rows = None
    +1893
    +1894        if self._match_text_seq("AFTER", "MATCH", "SKIP"):
    +1895            text = "AFTER MATCH SKIP"
    +1896            if self._match_text_seq("PAST", "LAST", "ROW"):
    +1897                text += f" PAST LAST ROW"
    +1898            elif self._match_text_seq("TO", "NEXT", "ROW"):
    +1899                text += f" TO NEXT ROW"
    +1900            elif self._match_text_seq("TO", "FIRST"):
    +1901                text += f" TO FIRST {self._advance_any().text}"  # type: ignore
    +1902            elif self._match_text_seq("TO", "LAST"):
    +1903                text += f" TO LAST {self._advance_any().text}"  # type: ignore
    +1904            after = exp.Var(this=text)
    +1905        else:
    +1906            after = None
    +1907
    +1908        if self._match_text_seq("PATTERN"):
    +1909            self._match_l_paren()
    +1910
    +1911            if not self._curr:
    +1912                self.raise_error("Expecting )", self._curr)
     1913
    -1914        define = (
    -1915            self._parse_alias(self._parse_conjunction()) if self._match_text_seq("DEFINE") else None
    -1916        )
    -1917        self._match_r_paren()
    -1918
    -1919        return self.expression(
    -1920            exp.MatchRecognize,
    -1921            partition_by=partition,
    -1922            order=order,
    -1923            measures=measures,
    -1924            rows=rows,
    -1925            after=after,
    -1926            pattern=pattern,
    -1927            define=define,
    -1928        )
    +1914            paren = 1
    +1915            start = self._curr
    +1916
    +1917            while self._curr and paren > 0:
    +1918                if self._curr.token_type == TokenType.L_PAREN:
    +1919                    paren += 1
    +1920                if self._curr.token_type == TokenType.R_PAREN:
    +1921                    paren -= 1
    +1922                end = self._prev
    +1923                self._advance()
    +1924            if paren > 0:
    +1925                self.raise_error("Expecting )", self._curr)
    +1926            pattern = exp.Var(this=self._find_sql(start, end))
    +1927        else:
    +1928            pattern = None
     1929
    -1930    def _parse_lateral(self) -> t.Optional[exp.Expression]:
    -1931        outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY)
    -1932        cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY)
    -1933
    -1934        if outer_apply or cross_apply:
    -1935            this = self._parse_select(table=True)
    -1936            view = None
    -1937            outer = not cross_apply
    -1938        elif self._match(TokenType.LATERAL):
    -1939            this = self._parse_select(table=True)
    -1940            view = self._match(TokenType.VIEW)
    -1941            outer = self._match(TokenType.OUTER)
    -1942        else:
    -1943            return None
    -1944
    -1945        if not this:
    -1946            this = self._parse_function() or self._parse_id_var(any_token=False)
    -1947            while self._match(TokenType.DOT):
    -1948                this = exp.Dot(
    -1949                    this=this,
    -1950                    expression=self._parse_function() or self._parse_id_var(any_token=False),
    -1951                )
    -1952
    -1953        table_alias: t.Optional[exp.Expression]
    -1954
    -1955        if view:
    -1956            table = self._parse_id_var(any_token=False)
    -1957            columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else []
    -1958            table_alias = self.expression(exp.TableAlias, this=table, columns=columns)
    -1959        else:
    -1960            table_alias = self._parse_table_alias()
    -1961
    -1962        expression = self.expression(
    -1963            exp.Lateral,
    -1964            this=this,
    -1965            view=view,
    -1966            outer=outer,
    -1967            alias=table_alias,
    -1968        )
    -1969
    -1970        if outer_apply or cross_apply:
    -1971            return self.expression(exp.Join, this=expression, side=None if cross_apply else "LEFT")
    -1972
    -1973        return expression
    -1974
    -1975    def _parse_join_side_and_kind(
    -1976        self,
    -1977    ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]:
    -1978        return (
    -1979            self._match(TokenType.NATURAL) and self._prev,
    -1980            self._match_set(self.JOIN_SIDES) and self._prev,
    -1981            self._match_set(self.JOIN_KINDS) and self._prev,
    -1982        )
    -1983
    -1984    def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]:
    -1985        natural, side, kind = self._parse_join_side_and_kind()
    -1986
    -1987        if not skip_join_token and not self._match(TokenType.JOIN):
    -1988            return None
    -1989
    -1990        kwargs: t.Dict[
    -1991            str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]]
    -1992        ] = {"this": self._parse_table()}
    -1993
    -1994        if natural:
    -1995            kwargs["natural"] = True
    -1996        if side:
    -1997            kwargs["side"] = side.text
    -1998        if kind:
    -1999            kwargs["kind"] = kind.text
    -2000
    -2001        if self._match(TokenType.ON):
    -2002            kwargs["on"] = self._parse_conjunction()
    -2003        elif self._match(TokenType.USING):
    -2004            kwargs["using"] = self._parse_wrapped_id_vars()
    +1930        define = (
    +1931            self._parse_alias(self._parse_conjunction()) if self._match_text_seq("DEFINE") else None
    +1932        )
    +1933        self._match_r_paren()
    +1934
    +1935        return self.expression(
    +1936            exp.MatchRecognize,
    +1937            partition_by=partition,
    +1938            order=order,
    +1939            measures=measures,
    +1940            rows=rows,
    +1941            after=after,
    +1942            pattern=pattern,
    +1943            define=define,
    +1944        )
    +1945
    +1946    def _parse_lateral(self) -> t.Optional[exp.Expression]:
    +1947        outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY)
    +1948        cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY)
    +1949
    +1950        if outer_apply or cross_apply:
    +1951            this = self._parse_select(table=True)
    +1952            view = None
    +1953            outer = not cross_apply
    +1954        elif self._match(TokenType.LATERAL):
    +1955            this = self._parse_select(table=True)
    +1956            view = self._match(TokenType.VIEW)
    +1957            outer = self._match(TokenType.OUTER)
    +1958        else:
    +1959            return None
    +1960
    +1961        if not this:
    +1962            this = self._parse_function() or self._parse_id_var(any_token=False)
    +1963            while self._match(TokenType.DOT):
    +1964                this = exp.Dot(
    +1965                    this=this,
    +1966                    expression=self._parse_function() or self._parse_id_var(any_token=False),
    +1967                )
    +1968
    +1969        table_alias: t.Optional[exp.Expression]
    +1970
    +1971        if view:
    +1972            table = self._parse_id_var(any_token=False)
    +1973            columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else []
    +1974            table_alias = self.expression(exp.TableAlias, this=table, columns=columns)
    +1975        else:
    +1976            table_alias = self._parse_table_alias()
    +1977
    +1978        expression = self.expression(
    +1979            exp.Lateral,
    +1980            this=this,
    +1981            view=view,
    +1982            outer=outer,
    +1983            alias=table_alias,
    +1984        )
    +1985
    +1986        if outer_apply or cross_apply:
    +1987            return self.expression(exp.Join, this=expression, side=None if cross_apply else "LEFT")
    +1988
    +1989        return expression
    +1990
    +1991    def _parse_join_side_and_kind(
    +1992        self,
    +1993    ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]:
    +1994        return (
    +1995            self._match(TokenType.NATURAL) and self._prev,
    +1996            self._match_set(self.JOIN_SIDES) and self._prev,
    +1997            self._match_set(self.JOIN_KINDS) and self._prev,
    +1998        )
    +1999
    +2000    def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]:
    +2001        natural, side, kind = self._parse_join_side_and_kind()
    +2002
    +2003        if not skip_join_token and not self._match(TokenType.JOIN):
    +2004            return None
     2005
    -2006        return self.expression(exp.Join, **kwargs)  # type: ignore
    -2007
    -2008    def _parse_index(self) -> exp.Expression:
    -2009        index = self._parse_id_var()
    -2010        self._match(TokenType.ON)
    -2011        self._match(TokenType.TABLE)  # hive
    -2012
    -2013        return self.expression(
    -2014            exp.Index,
    -2015            this=index,
    -2016            table=self.expression(exp.Table, this=self._parse_id_var()),
    -2017            columns=self._parse_expression(),
    -2018        )
    -2019
    -2020    def _parse_create_table_index(self) -> t.Optional[exp.Expression]:
    -2021        unique = self._match(TokenType.UNIQUE)
    -2022        primary = self._match_text_seq("PRIMARY")
    -2023        amp = self._match_text_seq("AMP")
    -2024        if not self._match(TokenType.INDEX):
    -2025            return None
    -2026        index = self._parse_id_var()
    -2027        columns = None
    -2028        if self._match(TokenType.L_PAREN, advance=False):
    -2029            columns = self._parse_wrapped_csv(self._parse_column)
    -2030        return self.expression(
    -2031            exp.Index,
    -2032            this=index,
    -2033            columns=columns,
    -2034            unique=unique,
    -2035            primary=primary,
    -2036            amp=amp,
    -2037        )
    -2038
    -2039    def _parse_table_parts(self, schema: bool = False) -> exp.Expression:
    -2040        catalog = None
    -2041        db = None
    -2042        table = (not schema and self._parse_function()) or self._parse_id_var(any_token=False)
    -2043
    -2044        while self._match(TokenType.DOT):
    -2045            if catalog:
    -2046                # This allows nesting the table in arbitrarily many dot expressions if needed
    -2047                table = self.expression(exp.Dot, this=table, expression=self._parse_id_var())
    -2048            else:
    -2049                catalog = db
    -2050                db = table
    -2051                table = self._parse_id_var()
    -2052
    -2053        if not table:
    -2054            self.raise_error(f"Expected table name but got {self._curr}")
    -2055
    -2056        return self.expression(
    -2057            exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots()
    -2058        )
    +2006        kwargs: t.Dict[
    +2007            str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]]
    +2008        ] = {"this": self._parse_table()}
    +2009
    +2010        if natural:
    +2011            kwargs["natural"] = True
    +2012        if side:
    +2013            kwargs["side"] = side.text
    +2014        if kind:
    +2015            kwargs["kind"] = kind.text
    +2016
    +2017        if self._match(TokenType.ON):
    +2018            kwargs["on"] = self._parse_conjunction()
    +2019        elif self._match(TokenType.USING):
    +2020            kwargs["using"] = self._parse_wrapped_id_vars()
    +2021
    +2022        return self.expression(exp.Join, **kwargs)  # type: ignore
    +2023
    +2024    def _parse_index(self) -> exp.Expression:
    +2025        index = self._parse_id_var()
    +2026        self._match(TokenType.ON)
    +2027        self._match(TokenType.TABLE)  # hive
    +2028
    +2029        return self.expression(
    +2030            exp.Index,
    +2031            this=index,
    +2032            table=self.expression(exp.Table, this=self._parse_id_var()),
    +2033            columns=self._parse_expression(),
    +2034        )
    +2035
    +2036    def _parse_create_table_index(self) -> t.Optional[exp.Expression]:
    +2037        unique = self._match(TokenType.UNIQUE)
    +2038        primary = self._match_text_seq("PRIMARY")
    +2039        amp = self._match_text_seq("AMP")
    +2040        if not self._match(TokenType.INDEX):
    +2041            return None
    +2042        index = self._parse_id_var()
    +2043        columns = None
    +2044        if self._match(TokenType.L_PAREN, advance=False):
    +2045            columns = self._parse_wrapped_csv(self._parse_column)
    +2046        return self.expression(
    +2047            exp.Index,
    +2048            this=index,
    +2049            columns=columns,
    +2050            unique=unique,
    +2051            primary=primary,
    +2052            amp=amp,
    +2053        )
    +2054
    +2055    def _parse_table_parts(self, schema: bool = False) -> exp.Expression:
    +2056        catalog = None
    +2057        db = None
    +2058        table = (not schema and self._parse_function()) or self._parse_id_var(any_token=False)
     2059
    -2060    def _parse_table(
    -2061        self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None
    -2062    ) -> t.Optional[exp.Expression]:
    -2063        lateral = self._parse_lateral()
    -2064
    -2065        if lateral:
    -2066            return lateral
    -2067
    -2068        unnest = self._parse_unnest()
    -2069
    -2070        if unnest:
    -2071            return unnest
    -2072
    -2073        values = self._parse_derived_table_values()
    -2074
    -2075        if values:
    -2076            return values
    -2077
    -2078        subquery = self._parse_select(table=True)
    -2079
    -2080        if subquery:
    -2081            return subquery
    -2082
    -2083        this = self._parse_table_parts(schema=schema)
    -2084
    -2085        if schema:
    -2086            return self._parse_schema(this=this)
    -2087
    -2088        if self.alias_post_tablesample:
    -2089            table_sample = self._parse_table_sample()
    +2060        while self._match(TokenType.DOT):
    +2061            if catalog:
    +2062                # This allows nesting the table in arbitrarily many dot expressions if needed
    +2063                table = self.expression(exp.Dot, this=table, expression=self._parse_id_var())
    +2064            else:
    +2065                catalog = db
    +2066                db = table
    +2067                table = self._parse_id_var()
    +2068
    +2069        if not table:
    +2070            self.raise_error(f"Expected table name but got {self._curr}")
    +2071
    +2072        return self.expression(
    +2073            exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots()
    +2074        )
    +2075
    +2076    def _parse_table(
    +2077        self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None
    +2078    ) -> t.Optional[exp.Expression]:
    +2079        lateral = self._parse_lateral()
    +2080
    +2081        if lateral:
    +2082            return lateral
    +2083
    +2084        unnest = self._parse_unnest()
    +2085
    +2086        if unnest:
    +2087            return unnest
    +2088
    +2089        values = self._parse_derived_table_values()
     2090
    -2091        alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS)
    -2092
    -2093        if alias:
    -2094            this.set("alias", alias)
    +2091        if values:
    +2092            return values
    +2093
    +2094        subquery = self._parse_select(table=True)
     2095
    -2096        if not this.args.get("pivots"):
    -2097            this.set("pivots", self._parse_pivots())
    +2096        if subquery:
    +2097            return subquery
     2098
    -2099        if self._match_pair(TokenType.WITH, TokenType.L_PAREN):
    -2100            this.set(
    -2101                "hints",
    -2102                self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)),
    -2103            )
    -2104            self._match_r_paren()
    -2105
    -2106        if not self.alias_post_tablesample:
    -2107            table_sample = self._parse_table_sample()
    +2099        this = self._parse_table_parts(schema=schema)
    +2100
    +2101        if schema:
    +2102            return self._parse_schema(this=this)
    +2103
    +2104        if self.alias_post_tablesample:
    +2105            table_sample = self._parse_table_sample()
    +2106
    +2107        alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS)
     2108
    -2109        if table_sample:
    -2110            table_sample.set("this", this)
    -2111            this = table_sample
    -2112
    -2113        return this
    +2109        if alias:
    +2110            this.set("alias", alias)
    +2111
    +2112        if not this.args.get("pivots"):
    +2113            this.set("pivots", self._parse_pivots())
     2114
    -2115    def _parse_unnest(self) -> t.Optional[exp.Expression]:
    -2116        if not self._match(TokenType.UNNEST):
    -2117            return None
    -2118
    -2119        expressions = self._parse_wrapped_csv(self._parse_column)
    -2120        ordinality = bool(self._match(TokenType.WITH) and self._match(TokenType.ORDINALITY))
    -2121        alias = self._parse_table_alias()
    -2122
    -2123        if alias and self.unnest_column_only:
    -2124            if alias.args.get("columns"):
    -2125                self.raise_error("Unexpected extra column alias in unnest.")
    -2126            alias.set("columns", [alias.this])
    -2127            alias.set("this", None)
    +2115        if self._match_pair(TokenType.WITH, TokenType.L_PAREN):
    +2116            this.set(
    +2117                "hints",
    +2118                self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)),
    +2119            )
    +2120            self._match_r_paren()
    +2121
    +2122        if not self.alias_post_tablesample:
    +2123            table_sample = self._parse_table_sample()
    +2124
    +2125        if table_sample:
    +2126            table_sample.set("this", this)
    +2127            this = table_sample
     2128
    -2129        offset = None
    -2130        if self._match_pair(TokenType.WITH, TokenType.OFFSET):
    -2131            self._match(TokenType.ALIAS)
    -2132            offset = self._parse_conjunction()
    -2133
    -2134        return self.expression(
    -2135            exp.Unnest,
    -2136            expressions=expressions,
    -2137            ordinality=ordinality,
    -2138            alias=alias,
    -2139            offset=offset,
    -2140        )
    -2141
    -2142    def _parse_derived_table_values(self) -> t.Optional[exp.Expression]:
    -2143        is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES)
    -2144        if not is_derived and not self._match(TokenType.VALUES):
    -2145            return None
    -2146
    -2147        expressions = self._parse_csv(self._parse_value)
    -2148
    -2149        if is_derived:
    -2150            self._match_r_paren()
    -2151
    -2152        return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias())
    -2153
    -2154    def _parse_table_sample(self) -> t.Optional[exp.Expression]:
    -2155        if not self._match(TokenType.TABLE_SAMPLE):
    -2156            return None
    +2129        return this
    +2130
    +2131    def _parse_unnest(self) -> t.Optional[exp.Expression]:
    +2132        if not self._match(TokenType.UNNEST):
    +2133            return None
    +2134
    +2135        expressions = self._parse_wrapped_csv(self._parse_column)
    +2136        ordinality = bool(self._match(TokenType.WITH) and self._match(TokenType.ORDINALITY))
    +2137        alias = self._parse_table_alias()
    +2138
    +2139        if alias and self.unnest_column_only:
    +2140            if alias.args.get("columns"):
    +2141                self.raise_error("Unexpected extra column alias in unnest.")
    +2142            alias.set("columns", [alias.this])
    +2143            alias.set("this", None)
    +2144
    +2145        offset = None
    +2146        if self._match_pair(TokenType.WITH, TokenType.OFFSET):
    +2147            self._match(TokenType.ALIAS)
    +2148            offset = self._parse_conjunction()
    +2149
    +2150        return self.expression(
    +2151            exp.Unnest,
    +2152            expressions=expressions,
    +2153            ordinality=ordinality,
    +2154            alias=alias,
    +2155            offset=offset,
    +2156        )
     2157
    -2158        method = self._parse_var()
    -2159        bucket_numerator = None
    -2160        bucket_denominator = None
    -2161        bucket_field = None
    -2162        percent = None
    -2163        rows = None
    -2164        size = None
    -2165        seed = None
    -2166
    -2167        self._match_l_paren()
    -2168
    -2169        if self._match(TokenType.BUCKET):
    -2170            bucket_numerator = self._parse_number()
    -2171            self._match(TokenType.OUT_OF)
    -2172            bucket_denominator = bucket_denominator = self._parse_number()
    -2173            self._match(TokenType.ON)
    -2174            bucket_field = self._parse_field()
    -2175        else:
    -2176            num = self._parse_number()
    -2177
    -2178            if self._match(TokenType.PERCENT):
    -2179                percent = num
    -2180            elif self._match(TokenType.ROWS):
    -2181                rows = num
    -2182            else:
    -2183                size = num
    -2184
    -2185        self._match_r_paren()
    +2158    def _parse_derived_table_values(self) -> t.Optional[exp.Expression]:
    +2159        is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES)
    +2160        if not is_derived and not self._match(TokenType.VALUES):
    +2161            return None
    +2162
    +2163        expressions = self._parse_csv(self._parse_value)
    +2164
    +2165        if is_derived:
    +2166            self._match_r_paren()
    +2167
    +2168        return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias())
    +2169
    +2170    def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]:
    +2171        if not self._match(TokenType.TABLE_SAMPLE) and not (
    +2172            as_modifier and self._match_text_seq("USING", "SAMPLE")
    +2173        ):
    +2174            return None
    +2175
    +2176        bucket_numerator = None
    +2177        bucket_denominator = None
    +2178        bucket_field = None
    +2179        percent = None
    +2180        rows = None
    +2181        size = None
    +2182        seed = None
    +2183
    +2184        kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE"
    +2185        method = self._parse_var(tokens=(TokenType.ROW,))
     2186
    -2187        if self._match(TokenType.SEED):
    -2188            seed = self._parse_wrapped(self._parse_number)
    -2189
    -2190        return self.expression(
    -2191            exp.TableSample,
    -2192            method=method,
    -2193            bucket_numerator=bucket_numerator,
    -2194            bucket_denominator=bucket_denominator,
    -2195            bucket_field=bucket_field,
    -2196            percent=percent,
    -2197            rows=rows,
    -2198            size=size,
    -2199            seed=seed,
    -2200        )
    -2201
    -2202    def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]:
    -2203        return list(iter(self._parse_pivot, None))
    -2204
    -2205    def _parse_pivot(self) -> t.Optional[exp.Expression]:
    -2206        index = self._index
    -2207
    -2208        if self._match(TokenType.PIVOT):
    -2209            unpivot = False
    -2210        elif self._match(TokenType.UNPIVOT):
    -2211            unpivot = True
    -2212        else:
    -2213            return None
    -2214
    -2215        expressions = []
    -2216        field = None
    -2217
    -2218        if not self._match(TokenType.L_PAREN):
    -2219            self._retreat(index)
    -2220            return None
    -2221
    -2222        if unpivot:
    -2223            expressions = self._parse_csv(self._parse_column)
    -2224        else:
    -2225            expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function()))
    -2226
    -2227        if not self._match(TokenType.FOR):
    -2228            self.raise_error("Expecting FOR")
    -2229
    -2230        value = self._parse_column()
    +2187        self._match(TokenType.L_PAREN)
    +2188
    +2189        num = self._parse_number()
    +2190
    +2191        if self._match(TokenType.BUCKET):
    +2192            bucket_numerator = self._parse_number()
    +2193            self._match(TokenType.OUT_OF)
    +2194            bucket_denominator = bucket_denominator = self._parse_number()
    +2195            self._match(TokenType.ON)
    +2196            bucket_field = self._parse_field()
    +2197        elif self._match_set((TokenType.PERCENT, TokenType.MOD)):
    +2198            percent = num
    +2199        elif self._match(TokenType.ROWS):
    +2200            rows = num
    +2201        else:
    +2202            size = num
    +2203
    +2204        self._match(TokenType.R_PAREN)
    +2205
    +2206        if self._match(TokenType.L_PAREN):
    +2207            method = self._parse_var()
    +2208            seed = self._match(TokenType.COMMA) and self._parse_number()
    +2209            self._match_r_paren()
    +2210        elif self._match_texts(("SEED", "REPEATABLE")):
    +2211            seed = self._parse_wrapped(self._parse_number)
    +2212
    +2213        return self.expression(
    +2214            exp.TableSample,
    +2215            method=method,
    +2216            bucket_numerator=bucket_numerator,
    +2217            bucket_denominator=bucket_denominator,
    +2218            bucket_field=bucket_field,
    +2219            percent=percent,
    +2220            rows=rows,
    +2221            size=size,
    +2222            seed=seed,
    +2223            kind=kind,
    +2224        )
    +2225
    +2226    def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]:
    +2227        return list(iter(self._parse_pivot, None))
    +2228
    +2229    def _parse_pivot(self) -> t.Optional[exp.Expression]:
    +2230        index = self._index
     2231
    -2232        if not self._match(TokenType.IN):
    -2233            self.raise_error("Expecting IN")
    -2234
    -2235        field = self._parse_in(value)
    -2236
    -2237        self._match_r_paren()
    +2232        if self._match(TokenType.PIVOT):
    +2233            unpivot = False
    +2234        elif self._match(TokenType.UNPIVOT):
    +2235            unpivot = True
    +2236        else:
    +2237            return None
     2238
    -2239        pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot)
    -2240
    -2241        if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False):
    -2242            pivot.set("alias", self._parse_table_alias())
    -2243
    -2244        return pivot
    +2239        expressions = []
    +2240        field = None
    +2241
    +2242        if not self._match(TokenType.L_PAREN):
    +2243            self._retreat(index)
    +2244            return None
     2245
    -2246    def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]:
    -2247        if not skip_where_token and not self._match(TokenType.WHERE):
    -2248            return None
    -2249
    -2250        return self.expression(
    -2251            exp.Where, comments=self._prev_comments, this=self._parse_conjunction()
    -2252        )
    +2246        if unpivot:
    +2247            expressions = self._parse_csv(self._parse_column)
    +2248        else:
    +2249            expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function()))
    +2250
    +2251        if not self._match(TokenType.FOR):
    +2252            self.raise_error("Expecting FOR")
     2253
    -2254    def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]:
    -2255        if not skip_group_by_token and not self._match(TokenType.GROUP_BY):
    -2256            return None
    -2257
    -2258        elements = defaultdict(list)
    -2259
    -2260        while True:
    -2261            expressions = self._parse_csv(self._parse_conjunction)
    -2262            if expressions:
    -2263                elements["expressions"].extend(expressions)
    +2254        value = self._parse_column()
    +2255
    +2256        if not self._match(TokenType.IN):
    +2257            self.raise_error("Expecting IN")
    +2258
    +2259        field = self._parse_in(value)
    +2260
    +2261        self._match_r_paren()
    +2262
    +2263        pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot)
     2264
    -2265            grouping_sets = self._parse_grouping_sets()
    -2266            if grouping_sets:
    -2267                elements["grouping_sets"].extend(grouping_sets)
    -2268
    -2269            rollup = None
    -2270            cube = None
    -2271
    -2272            with_ = self._match(TokenType.WITH)
    -2273            if self._match(TokenType.ROLLUP):
    -2274                rollup = with_ or self._parse_wrapped_csv(self._parse_column)
    -2275                elements["rollup"].extend(ensure_list(rollup))
    -2276
    -2277            if self._match(TokenType.CUBE):
    -2278                cube = with_ or self._parse_wrapped_csv(self._parse_column)
    -2279                elements["cube"].extend(ensure_list(cube))
    -2280
    -2281            if not (expressions or grouping_sets or rollup or cube):
    -2282                break
    +2265        if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False):
    +2266            pivot.set("alias", self._parse_table_alias())
    +2267
    +2268        return pivot
    +2269
    +2270    def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]:
    +2271        if not skip_where_token and not self._match(TokenType.WHERE):
    +2272            return None
    +2273
    +2274        return self.expression(
    +2275            exp.Where, comments=self._prev_comments, this=self._parse_conjunction()
    +2276        )
    +2277
    +2278    def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]:
    +2279        if not skip_group_by_token and not self._match(TokenType.GROUP_BY):
    +2280            return None
    +2281
    +2282        elements = defaultdict(list)
     2283
    -2284        return self.expression(exp.Group, **elements)  # type: ignore
    -2285
    -2286    def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    -2287        if not self._match(TokenType.GROUPING_SETS):
    -2288            return None
    -2289
    -2290        return self._parse_wrapped_csv(self._parse_grouping_set)
    -2291
    -2292    def _parse_grouping_set(self) -> t.Optional[exp.Expression]:
    -2293        if self._match(TokenType.L_PAREN):
    -2294            grouping_set = self._parse_csv(self._parse_column)
    -2295            self._match_r_paren()
    -2296            return self.expression(exp.Tuple, expressions=grouping_set)
    -2297
    -2298        return self._parse_column()
    -2299
    -2300    def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]:
    -2301        if not skip_having_token and not self._match(TokenType.HAVING):
    -2302            return None
    -2303        return self.expression(exp.Having, this=self._parse_conjunction())
    +2284        while True:
    +2285            expressions = self._parse_csv(self._parse_conjunction)
    +2286            if expressions:
    +2287                elements["expressions"].extend(expressions)
    +2288
    +2289            grouping_sets = self._parse_grouping_sets()
    +2290            if grouping_sets:
    +2291                elements["grouping_sets"].extend(grouping_sets)
    +2292
    +2293            rollup = None
    +2294            cube = None
    +2295
    +2296            with_ = self._match(TokenType.WITH)
    +2297            if self._match(TokenType.ROLLUP):
    +2298                rollup = with_ or self._parse_wrapped_csv(self._parse_column)
    +2299                elements["rollup"].extend(ensure_list(rollup))
    +2300
    +2301            if self._match(TokenType.CUBE):
    +2302                cube = with_ or self._parse_wrapped_csv(self._parse_column)
    +2303                elements["cube"].extend(ensure_list(cube))
     2304
    -2305    def _parse_qualify(self) -> t.Optional[exp.Expression]:
    -2306        if not self._match(TokenType.QUALIFY):
    -2307            return None
    -2308        return self.expression(exp.Qualify, this=self._parse_conjunction())
    +2305            if not (expressions or grouping_sets or rollup or cube):
    +2306                break
    +2307
    +2308        return self.expression(exp.Group, **elements)  # type: ignore
     2309
    -2310    def _parse_order(
    -2311        self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False
    -2312    ) -> t.Optional[exp.Expression]:
    -2313        if not skip_order_token and not self._match(TokenType.ORDER_BY):
    -2314            return this
    +2310    def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    +2311        if not self._match(TokenType.GROUPING_SETS):
    +2312            return None
    +2313
    +2314        return self._parse_wrapped_csv(self._parse_grouping_set)
     2315
    -2316        return self.expression(
    -2317            exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered)
    -2318        )
    -2319
    -2320    def _parse_sort(
    -2321        self, token_type: TokenType, exp_class: t.Type[exp.Expression]
    -2322    ) -> t.Optional[exp.Expression]:
    -2323        if not self._match(token_type):
    -2324            return None
    -2325        return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered))
    -2326
    -2327    def _parse_ordered(self) -> exp.Expression:
    -2328        this = self._parse_conjunction()
    -2329        self._match(TokenType.ASC)
    -2330        is_desc = self._match(TokenType.DESC)
    -2331        is_nulls_first = self._match(TokenType.NULLS_FIRST)
    -2332        is_nulls_last = self._match(TokenType.NULLS_LAST)
    -2333        desc = is_desc or False
    -2334        asc = not desc
    -2335        nulls_first = is_nulls_first or False
    -2336        explicitly_null_ordered = is_nulls_first or is_nulls_last
    -2337        if (
    -2338            not explicitly_null_ordered
    -2339            and (
    -2340                (asc and self.null_ordering == "nulls_are_small")
    -2341                or (desc and self.null_ordering != "nulls_are_small")
    -2342            )
    -2343            and self.null_ordering != "nulls_are_last"
    -2344        ):
    -2345            nulls_first = True
    -2346
    -2347        return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first)
    -2348
    -2349    def _parse_limit(
    -2350        self, this: t.Optional[exp.Expression] = None, top: bool = False
    -2351    ) -> t.Optional[exp.Expression]:
    -2352        if self._match(TokenType.TOP if top else TokenType.LIMIT):
    -2353            limit_paren = self._match(TokenType.L_PAREN)
    -2354            limit_exp = self.expression(
    -2355                exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term()
    -2356            )
    -2357
    -2358            if limit_paren:
    -2359                self._match_r_paren()
    -2360
    -2361            return limit_exp
    -2362
    -2363        if self._match(TokenType.FETCH):
    -2364            direction = self._match_set((TokenType.FIRST, TokenType.NEXT))
    -2365            direction = self._prev.text if direction else "FIRST"
    -2366            count = self._parse_number()
    -2367            self._match_set((TokenType.ROW, TokenType.ROWS))
    -2368            self._match(TokenType.ONLY)
    -2369            return self.expression(exp.Fetch, direction=direction, count=count)
    +2316    def _parse_grouping_set(self) -> t.Optional[exp.Expression]:
    +2317        if self._match(TokenType.L_PAREN):
    +2318            grouping_set = self._parse_csv(self._parse_column)
    +2319            self._match_r_paren()
    +2320            return self.expression(exp.Tuple, expressions=grouping_set)
    +2321
    +2322        return self._parse_column()
    +2323
    +2324    def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]:
    +2325        if not skip_having_token and not self._match(TokenType.HAVING):
    +2326            return None
    +2327        return self.expression(exp.Having, this=self._parse_conjunction())
    +2328
    +2329    def _parse_qualify(self) -> t.Optional[exp.Expression]:
    +2330        if not self._match(TokenType.QUALIFY):
    +2331            return None
    +2332        return self.expression(exp.Qualify, this=self._parse_conjunction())
    +2333
    +2334    def _parse_order(
    +2335        self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False
    +2336    ) -> t.Optional[exp.Expression]:
    +2337        if not skip_order_token and not self._match(TokenType.ORDER_BY):
    +2338            return this
    +2339
    +2340        return self.expression(
    +2341            exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered)
    +2342        )
    +2343
    +2344    def _parse_sort(
    +2345        self, token_type: TokenType, exp_class: t.Type[exp.Expression]
    +2346    ) -> t.Optional[exp.Expression]:
    +2347        if not self._match(token_type):
    +2348            return None
    +2349        return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered))
    +2350
    +2351    def _parse_ordered(self) -> exp.Expression:
    +2352        this = self._parse_conjunction()
    +2353        self._match(TokenType.ASC)
    +2354        is_desc = self._match(TokenType.DESC)
    +2355        is_nulls_first = self._match(TokenType.NULLS_FIRST)
    +2356        is_nulls_last = self._match(TokenType.NULLS_LAST)
    +2357        desc = is_desc or False
    +2358        asc = not desc
    +2359        nulls_first = is_nulls_first or False
    +2360        explicitly_null_ordered = is_nulls_first or is_nulls_last
    +2361        if (
    +2362            not explicitly_null_ordered
    +2363            and (
    +2364                (asc and self.null_ordering == "nulls_are_small")
    +2365                or (desc and self.null_ordering != "nulls_are_small")
    +2366            )
    +2367            and self.null_ordering != "nulls_are_last"
    +2368        ):
    +2369            nulls_first = True
     2370
    -2371        return this
    +2371        return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first)
     2372
    -2373    def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]:
    -2374        if not self._match_set((TokenType.OFFSET, TokenType.COMMA)):
    -2375            return this
    -2376
    -2377        count = self._parse_number()
    -2378        self._match_set((TokenType.ROW, TokenType.ROWS))
    -2379        return self.expression(exp.Offset, this=this, expression=count)
    -2380
    -2381    def _parse_lock(self) -> t.Optional[exp.Expression]:
    -2382        if self._match_text_seq("FOR", "UPDATE"):
    -2383            return self.expression(exp.Lock, update=True)
    -2384        if self._match_text_seq("FOR", "SHARE"):
    -2385            return self.expression(exp.Lock, update=False)
    +2373    def _parse_limit(
    +2374        self, this: t.Optional[exp.Expression] = None, top: bool = False
    +2375    ) -> t.Optional[exp.Expression]:
    +2376        if self._match(TokenType.TOP if top else TokenType.LIMIT):
    +2377            limit_paren = self._match(TokenType.L_PAREN)
    +2378            limit_exp = self.expression(
    +2379                exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term()
    +2380            )
    +2381
    +2382            if limit_paren:
    +2383                self._match_r_paren()
    +2384
    +2385            return limit_exp
     2386
    -2387        return None
    -2388
    -2389    def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    -2390        if not self._match_set(self.SET_OPERATIONS):
    -2391            return this
    -2392
    -2393        token_type = self._prev.token_type
    +2387        if self._match(TokenType.FETCH):
    +2388            direction = self._match_set((TokenType.FIRST, TokenType.NEXT))
    +2389            direction = self._prev.text if direction else "FIRST"
    +2390            count = self._parse_number()
    +2391            self._match_set((TokenType.ROW, TokenType.ROWS))
    +2392            self._match(TokenType.ONLY)
    +2393            return self.expression(exp.Fetch, direction=direction, count=count)
     2394
    -2395        if token_type == TokenType.UNION:
    -2396            expression = exp.Union
    -2397        elif token_type == TokenType.EXCEPT:
    -2398            expression = exp.Except
    -2399        else:
    -2400            expression = exp.Intersect
    -2401
    -2402        return self.expression(
    -2403            expression,
    -2404            this=this,
    -2405            distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL),
    -2406            expression=self._parse_set_operations(self._parse_select(nested=True)),
    -2407        )
    -2408
    -2409    def _parse_expression(self) -> t.Optional[exp.Expression]:
    -2410        return self._parse_alias(self._parse_conjunction())
    -2411
    -2412    def _parse_conjunction(self) -> t.Optional[exp.Expression]:
    -2413        return self._parse_tokens(self._parse_equality, self.CONJUNCTION)
    -2414
    -2415    def _parse_equality(self) -> t.Optional[exp.Expression]:
    -2416        return self._parse_tokens(self._parse_comparison, self.EQUALITY)
    -2417
    -2418    def _parse_comparison(self) -> t.Optional[exp.Expression]:
    -2419        return self._parse_tokens(self._parse_range, self.COMPARISON)
    -2420
    -2421    def _parse_range(self) -> t.Optional[exp.Expression]:
    -2422        this = self._parse_bitwise()
    -2423        negate = self._match(TokenType.NOT)
    -2424
    -2425        if self._match_set(self.RANGE_PARSERS):
    -2426            this = self.RANGE_PARSERS[self._prev.token_type](self, this)
    -2427        elif self._match(TokenType.ISNULL):
    -2428            this = self.expression(exp.Is, this=this, expression=exp.Null())
    -2429
    -2430        # Postgres supports ISNULL and NOTNULL for conditions.
    -2431        # https://blog.andreiavram.ro/postgresql-null-composite-type/
    -2432        if self._match(TokenType.NOTNULL):
    -2433            this = self.expression(exp.Is, this=this, expression=exp.Null())
    -2434            this = self.expression(exp.Not, this=this)
    +2395        return this
    +2396
    +2397    def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]:
    +2398        if not self._match_set((TokenType.OFFSET, TokenType.COMMA)):
    +2399            return this
    +2400
    +2401        count = self._parse_number()
    +2402        self._match_set((TokenType.ROW, TokenType.ROWS))
    +2403        return self.expression(exp.Offset, this=this, expression=count)
    +2404
    +2405    def _parse_lock(self) -> t.Optional[exp.Expression]:
    +2406        if self._match_text_seq("FOR", "UPDATE"):
    +2407            return self.expression(exp.Lock, update=True)
    +2408        if self._match_text_seq("FOR", "SHARE"):
    +2409            return self.expression(exp.Lock, update=False)
    +2410
    +2411        return None
    +2412
    +2413    def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +2414        if not self._match_set(self.SET_OPERATIONS):
    +2415            return this
    +2416
    +2417        token_type = self._prev.token_type
    +2418
    +2419        if token_type == TokenType.UNION:
    +2420            expression = exp.Union
    +2421        elif token_type == TokenType.EXCEPT:
    +2422            expression = exp.Except
    +2423        else:
    +2424            expression = exp.Intersect
    +2425
    +2426        return self.expression(
    +2427            expression,
    +2428            this=this,
    +2429            distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL),
    +2430            expression=self._parse_set_operations(self._parse_select(nested=True)),
    +2431        )
    +2432
    +2433    def _parse_expression(self) -> t.Optional[exp.Expression]:
    +2434        return self._parse_alias(self._parse_conjunction())
     2435
    -2436        if negate:
    -2437            this = self.expression(exp.Not, this=this)
    +2436    def _parse_conjunction(self) -> t.Optional[exp.Expression]:
    +2437        return self._parse_tokens(self._parse_equality, self.CONJUNCTION)
     2438
    -2439        if self._match(TokenType.IS):
    -2440            this = self._parse_is(this)
    +2439    def _parse_equality(self) -> t.Optional[exp.Expression]:
    +2440        return self._parse_tokens(self._parse_comparison, self.EQUALITY)
     2441
    -2442        return this
    -2443
    -2444    def _parse_is(self, this: t.Optional[exp.Expression]) -> exp.Expression:
    -2445        negate = self._match(TokenType.NOT)
    -2446        if self._match(TokenType.DISTINCT_FROM):
    -2447            klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ
    -2448            return self.expression(klass, this=this, expression=self._parse_expression())
    -2449
    -2450        this = self.expression(
    -2451            exp.Is,
    -2452            this=this,
    -2453            expression=self._parse_null() or self._parse_boolean(),
    -2454        )
    -2455        return self.expression(exp.Not, this=this) if negate else this
    -2456
    -2457    def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression:
    -2458        unnest = self._parse_unnest()
    -2459        if unnest:
    -2460            this = self.expression(exp.In, this=this, unnest=unnest)
    -2461        elif self._match(TokenType.L_PAREN):
    -2462            expressions = self._parse_csv(self._parse_select_or_expression)
    -2463
    -2464            if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable):
    -2465                this = self.expression(exp.In, this=this, query=expressions[0])
    -2466            else:
    -2467                this = self.expression(exp.In, this=this, expressions=expressions)
    -2468
    -2469            self._match_r_paren()
    -2470        else:
    -2471            this = self.expression(exp.In, this=this, field=self._parse_field())
    -2472
    -2473        return this
    -2474
    -2475    def _parse_between(self, this: exp.Expression) -> exp.Expression:
    -2476        low = self._parse_bitwise()
    -2477        self._match(TokenType.AND)
    -2478        high = self._parse_bitwise()
    -2479        return self.expression(exp.Between, this=this, low=low, high=high)
    +2442    def _parse_comparison(self) -> t.Optional[exp.Expression]:
    +2443        return self._parse_tokens(self._parse_range, self.COMPARISON)
    +2444
    +2445    def _parse_range(self) -> t.Optional[exp.Expression]:
    +2446        this = self._parse_bitwise()
    +2447        negate = self._match(TokenType.NOT)
    +2448
    +2449        if self._match_set(self.RANGE_PARSERS):
    +2450            this = self.RANGE_PARSERS[self._prev.token_type](self, this)
    +2451        elif self._match(TokenType.ISNULL):
    +2452            this = self.expression(exp.Is, this=this, expression=exp.Null())
    +2453
    +2454        # Postgres supports ISNULL and NOTNULL for conditions.
    +2455        # https://blog.andreiavram.ro/postgresql-null-composite-type/
    +2456        if self._match(TokenType.NOTNULL):
    +2457            this = self.expression(exp.Is, this=this, expression=exp.Null())
    +2458            this = self.expression(exp.Not, this=this)
    +2459
    +2460        if negate:
    +2461            this = self.expression(exp.Not, this=this)
    +2462
    +2463        if self._match(TokenType.IS):
    +2464            this = self._parse_is(this)
    +2465
    +2466        return this
    +2467
    +2468    def _parse_is(self, this: t.Optional[exp.Expression]) -> exp.Expression:
    +2469        negate = self._match(TokenType.NOT)
    +2470        if self._match(TokenType.DISTINCT_FROM):
    +2471            klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ
    +2472            return self.expression(klass, this=this, expression=self._parse_expression())
    +2473
    +2474        this = self.expression(
    +2475            exp.Is,
    +2476            this=this,
    +2477            expression=self._parse_null() or self._parse_boolean(),
    +2478        )
    +2479        return self.expression(exp.Not, this=this) if negate else this
     2480
    -2481    def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    -2482        if not self._match(TokenType.ESCAPE):
    -2483            return this
    -2484        return self.expression(exp.Escape, this=this, expression=self._parse_string())
    -2485
    -2486    def _parse_bitwise(self) -> t.Optional[exp.Expression]:
    -2487        this = self._parse_term()
    -2488
    -2489        while True:
    -2490            if self._match_set(self.BITWISE):
    -2491                this = self.expression(
    -2492                    self.BITWISE[self._prev.token_type],
    -2493                    this=this,
    -2494                    expression=self._parse_term(),
    -2495                )
    -2496            elif self._match_pair(TokenType.LT, TokenType.LT):
    -2497                this = self.expression(
    -2498                    exp.BitwiseLeftShift, this=this, expression=self._parse_term()
    -2499                )
    -2500            elif self._match_pair(TokenType.GT, TokenType.GT):
    -2501                this = self.expression(
    -2502                    exp.BitwiseRightShift, this=this, expression=self._parse_term()
    -2503                )
    -2504            else:
    -2505                break
    -2506
    -2507        return this
    -2508
    -2509    def _parse_term(self) -> t.Optional[exp.Expression]:
    -2510        return self._parse_tokens(self._parse_factor, self.TERM)
    -2511
    -2512    def _parse_factor(self) -> t.Optional[exp.Expression]:
    -2513        return self._parse_tokens(self._parse_unary, self.FACTOR)
    -2514
    -2515    def _parse_unary(self) -> t.Optional[exp.Expression]:
    -2516        if self._match_set(self.UNARY_PARSERS):
    -2517            return self.UNARY_PARSERS[self._prev.token_type](self)
    -2518        return self._parse_at_time_zone(self._parse_type())
    -2519
    -2520    def _parse_type(self) -> t.Optional[exp.Expression]:
    -2521        if self._match(TokenType.INTERVAL):
    -2522            return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_var())
    -2523
    -2524        index = self._index
    -2525        type_token = self._parse_types(check_func=True)
    -2526        this = self._parse_column()
    -2527
    -2528        if type_token:
    -2529            if this and not isinstance(this, exp.Star):
    -2530                return self.expression(exp.Cast, this=this, to=type_token)
    -2531            if not type_token.args.get("expressions"):
    -2532                self._retreat(index)
    -2533                return self._parse_column()
    -2534            return type_token
    +2481    def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression:
    +2482        unnest = self._parse_unnest()
    +2483        if unnest:
    +2484            this = self.expression(exp.In, this=this, unnest=unnest)
    +2485        elif self._match(TokenType.L_PAREN):
    +2486            expressions = self._parse_csv(self._parse_select_or_expression)
    +2487
    +2488            if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable):
    +2489                this = self.expression(exp.In, this=this, query=expressions[0])
    +2490            else:
    +2491                this = self.expression(exp.In, this=this, expressions=expressions)
    +2492
    +2493            self._match_r_paren()
    +2494        else:
    +2495            this = self.expression(exp.In, this=this, field=self._parse_field())
    +2496
    +2497        return this
    +2498
    +2499    def _parse_between(self, this: exp.Expression) -> exp.Expression:
    +2500        low = self._parse_bitwise()
    +2501        self._match(TokenType.AND)
    +2502        high = self._parse_bitwise()
    +2503        return self.expression(exp.Between, this=this, low=low, high=high)
    +2504
    +2505    def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +2506        if not self._match(TokenType.ESCAPE):
    +2507            return this
    +2508        return self.expression(exp.Escape, this=this, expression=self._parse_string())
    +2509
    +2510    def _parse_bitwise(self) -> t.Optional[exp.Expression]:
    +2511        this = self._parse_term()
    +2512
    +2513        while True:
    +2514            if self._match_set(self.BITWISE):
    +2515                this = self.expression(
    +2516                    self.BITWISE[self._prev.token_type],
    +2517                    this=this,
    +2518                    expression=self._parse_term(),
    +2519                )
    +2520            elif self._match_pair(TokenType.LT, TokenType.LT):
    +2521                this = self.expression(
    +2522                    exp.BitwiseLeftShift, this=this, expression=self._parse_term()
    +2523                )
    +2524            elif self._match_pair(TokenType.GT, TokenType.GT):
    +2525                this = self.expression(
    +2526                    exp.BitwiseRightShift, this=this, expression=self._parse_term()
    +2527                )
    +2528            else:
    +2529                break
    +2530
    +2531        return this
    +2532
    +2533    def _parse_term(self) -> t.Optional[exp.Expression]:
    +2534        return self._parse_tokens(self._parse_factor, self.TERM)
     2535
    -2536        return this
    -2537
    -2538    def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]:
    -2539        index = self._index
    -2540
    -2541        prefix = self._match_text_seq("SYSUDTLIB", ".")
    -2542
    -2543        if not self._match_set(self.TYPE_TOKENS):
    -2544            return None
    -2545
    -2546        type_token = self._prev.token_type
    +2536    def _parse_factor(self) -> t.Optional[exp.Expression]:
    +2537        return self._parse_tokens(self._parse_unary, self.FACTOR)
    +2538
    +2539    def _parse_unary(self) -> t.Optional[exp.Expression]:
    +2540        if self._match_set(self.UNARY_PARSERS):
    +2541            return self.UNARY_PARSERS[self._prev.token_type](self)
    +2542        return self._parse_at_time_zone(self._parse_type())
    +2543
    +2544    def _parse_type(self) -> t.Optional[exp.Expression]:
    +2545        if self._match(TokenType.INTERVAL):
    +2546            return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_var())
     2547
    -2548        if type_token == TokenType.PSEUDO_TYPE:
    -2549            return self.expression(exp.PseudoType, this=self._prev.text)
    -2550
    -2551        nested = type_token in self.NESTED_TYPE_TOKENS
    -2552        is_struct = type_token == TokenType.STRUCT
    -2553        expressions = None
    -2554        maybe_func = False
    -2555
    -2556        if self._match(TokenType.L_PAREN):
    -2557            if is_struct:
    -2558                expressions = self._parse_csv(self._parse_struct_kwargs)
    -2559            elif nested:
    -2560                expressions = self._parse_csv(self._parse_types)
    -2561            else:
    -2562                expressions = self._parse_csv(self._parse_conjunction)
    -2563
    -2564            if not expressions:
    -2565                self._retreat(index)
    -2566                return None
    -2567
    -2568            self._match_r_paren()
    -2569            maybe_func = True
    -2570
    -2571        if not nested and self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET):
    -2572            this = exp.DataType(
    -2573                this=exp.DataType.Type.ARRAY,
    -2574                expressions=[exp.DataType.build(type_token.value, expressions=expressions)],
    -2575                nested=True,
    -2576            )
    -2577
    -2578            while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET):
    -2579                this = exp.DataType(
    -2580                    this=exp.DataType.Type.ARRAY,
    -2581                    expressions=[this],
    -2582                    nested=True,
    -2583                )
    -2584
    -2585            return this
    -2586
    -2587        if self._match(TokenType.L_BRACKET):
    -2588            self._retreat(index)
    -2589            return None
    -2590
    -2591        values: t.Optional[t.List[t.Optional[exp.Expression]]] = None
    -2592        if nested and self._match(TokenType.LT):
    -2593            if is_struct:
    -2594                expressions = self._parse_csv(self._parse_struct_kwargs)
    -2595            else:
    -2596                expressions = self._parse_csv(self._parse_types)
    -2597
    -2598            if not self._match(TokenType.GT):
    -2599                self.raise_error("Expecting >")
    -2600
    -2601            if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)):
    -2602                values = self._parse_csv(self._parse_conjunction)
    -2603                self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN))
    -2604
    -2605        value: t.Optional[exp.Expression] = None
    -2606        if type_token in self.TIMESTAMPS:
    -2607            if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ:
    -2608                value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions)
    -2609            elif (
    -2610                self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ
    -2611            ):
    -2612                value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions)
    -2613            elif self._match(TokenType.WITHOUT_TIME_ZONE):
    -2614                if type_token == TokenType.TIME:
    -2615                    value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions)
    -2616                else:
    -2617                    value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions)
    -2618
    -2619            maybe_func = maybe_func and value is None
    -2620
    -2621            if value is None:
    -2622                value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions)
    -2623        elif type_token == TokenType.INTERVAL:
    -2624            value = self.expression(exp.Interval, unit=self._parse_var())
    -2625
    -2626        if maybe_func and check_func:
    -2627            index2 = self._index
    -2628            peek = self._parse_string()
    -2629
    -2630            if not peek:
    -2631                self._retreat(index)
    -2632                return None
    -2633
    -2634            self._retreat(index2)
    -2635
    -2636        if value:
    -2637            return value
    -2638
    -2639        return exp.DataType(
    -2640            this=exp.DataType.Type[type_token.value.upper()],
    -2641            expressions=expressions,
    -2642            nested=nested,
    -2643            values=values,
    -2644            prefix=prefix,
    -2645        )
    -2646
    -2647    def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]:
    -2648        if self._curr and self._curr.token_type in self.TYPE_TOKENS:
    -2649            return self._parse_types()
    -2650
    -2651        this = self._parse_id_var()
    -2652        self._match(TokenType.COLON)
    -2653        data_type = self._parse_types()
    +2548        index = self._index
    +2549        type_token = self._parse_types(check_func=True)
    +2550        this = self._parse_column()
    +2551
    +2552        if type_token:
    +2553            if this and not isinstance(this, exp.Star):
    +2554                return self.expression(exp.Cast, this=this, to=type_token)
    +2555            if not type_token.args.get("expressions"):
    +2556                self._retreat(index)
    +2557                return self._parse_column()
    +2558            return type_token
    +2559
    +2560        return this
    +2561
    +2562    def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]:
    +2563        index = self._index
    +2564
    +2565        prefix = self._match_text_seq("SYSUDTLIB", ".")
    +2566
    +2567        if not self._match_set(self.TYPE_TOKENS):
    +2568            return None
    +2569
    +2570        type_token = self._prev.token_type
    +2571
    +2572        if type_token == TokenType.PSEUDO_TYPE:
    +2573            return self.expression(exp.PseudoType, this=self._prev.text)
    +2574
    +2575        nested = type_token in self.NESTED_TYPE_TOKENS
    +2576        is_struct = type_token == TokenType.STRUCT
    +2577        expressions = None
    +2578        maybe_func = False
    +2579
    +2580        if self._match(TokenType.L_PAREN):
    +2581            if is_struct:
    +2582                expressions = self._parse_csv(self._parse_struct_kwargs)
    +2583            elif nested:
    +2584                expressions = self._parse_csv(self._parse_types)
    +2585            else:
    +2586                expressions = self._parse_csv(self._parse_conjunction)
    +2587
    +2588            if not expressions:
    +2589                self._retreat(index)
    +2590                return None
    +2591
    +2592            self._match_r_paren()
    +2593            maybe_func = True
    +2594
    +2595        if not nested and self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET):
    +2596            this = exp.DataType(
    +2597                this=exp.DataType.Type.ARRAY,
    +2598                expressions=[exp.DataType.build(type_token.value, expressions=expressions)],
    +2599                nested=True,
    +2600            )
    +2601
    +2602            while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET):
    +2603                this = exp.DataType(
    +2604                    this=exp.DataType.Type.ARRAY,
    +2605                    expressions=[this],
    +2606                    nested=True,
    +2607                )
    +2608
    +2609            return this
    +2610
    +2611        if self._match(TokenType.L_BRACKET):
    +2612            self._retreat(index)
    +2613            return None
    +2614
    +2615        values: t.Optional[t.List[t.Optional[exp.Expression]]] = None
    +2616        if nested and self._match(TokenType.LT):
    +2617            if is_struct:
    +2618                expressions = self._parse_csv(self._parse_struct_kwargs)
    +2619            else:
    +2620                expressions = self._parse_csv(self._parse_types)
    +2621
    +2622            if not self._match(TokenType.GT):
    +2623                self.raise_error("Expecting >")
    +2624
    +2625            if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)):
    +2626                values = self._parse_csv(self._parse_conjunction)
    +2627                self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN))
    +2628
    +2629        value: t.Optional[exp.Expression] = None
    +2630        if type_token in self.TIMESTAMPS:
    +2631            if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ:
    +2632                value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions)
    +2633            elif (
    +2634                self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ
    +2635            ):
    +2636                value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions)
    +2637            elif self._match(TokenType.WITHOUT_TIME_ZONE):
    +2638                if type_token == TokenType.TIME:
    +2639                    value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions)
    +2640                else:
    +2641                    value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions)
    +2642
    +2643            maybe_func = maybe_func and value is None
    +2644
    +2645            if value is None:
    +2646                value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions)
    +2647        elif type_token == TokenType.INTERVAL:
    +2648            unit = self._parse_var()
    +2649
    +2650            if not unit:
    +2651                value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL)
    +2652            else:
    +2653                value = self.expression(exp.Interval, unit=unit)
     2654
    -2655        if not data_type:
    -2656            return None
    -2657        return self.expression(exp.StructKwarg, this=this, expression=data_type)
    +2655        if maybe_func and check_func:
    +2656            index2 = self._index
    +2657            peek = self._parse_string()
     2658
    -2659    def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    -2660        if not self._match(TokenType.AT_TIME_ZONE):
    -2661            return this
    -2662        return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary())
    -2663
    -2664    def _parse_column(self) -> t.Optional[exp.Expression]:
    -2665        this = self._parse_field()
    -2666        if isinstance(this, exp.Identifier):
    -2667            this = self.expression(exp.Column, this=this)
    -2668        elif not this:
    -2669            return self._parse_bracket(this)
    -2670        this = self._parse_bracket(this)
    -2671
    -2672        while self._match_set(self.COLUMN_OPERATORS):
    -2673            op_token = self._prev.token_type
    -2674            op = self.COLUMN_OPERATORS.get(op_token)
    +2659            if not peek:
    +2660                self._retreat(index)
    +2661                return None
    +2662
    +2663            self._retreat(index2)
    +2664
    +2665        if value:
    +2666            return value
    +2667
    +2668        return exp.DataType(
    +2669            this=exp.DataType.Type[type_token.value.upper()],
    +2670            expressions=expressions,
    +2671            nested=nested,
    +2672            values=values,
    +2673            prefix=prefix,
    +2674        )
     2675
    -2676            if op_token == TokenType.DCOLON:
    -2677                field = self._parse_types()
    -2678                if not field:
    -2679                    self.raise_error("Expected type")
    -2680            elif op:
    -2681                self._advance()
    -2682                value = self._prev.text
    -2683                field = (
    -2684                    exp.Literal.number(value)
    -2685                    if self._prev.token_type == TokenType.NUMBER
    -2686                    else exp.Literal.string(value)
    -2687                )
    -2688            else:
    -2689                field = self._parse_star() or self._parse_function() or self._parse_id_var()
    -2690
    -2691            if isinstance(field, exp.Func):
    -2692                # bigquery allows function calls like x.y.count(...)
    -2693                # SAFE.SUBSTR(...)
    -2694                # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules
    -2695                this = self._replace_columns_with_dots(this)
    -2696
    -2697            if op:
    -2698                this = op(self, this, field)
    -2699            elif isinstance(this, exp.Column) and not this.args.get("catalog"):
    -2700                this = self.expression(
    -2701                    exp.Column,
    -2702                    this=field,
    -2703                    table=this.this,
    -2704                    db=this.args.get("table"),
    -2705                    catalog=this.args.get("db"),
    -2706                )
    -2707            else:
    -2708                this = self.expression(exp.Dot, this=this, expression=field)
    -2709            this = self._parse_bracket(this)
    -2710
    -2711        return this
    -2712
    -2713    def _parse_primary(self) -> t.Optional[exp.Expression]:
    -2714        if self._match_set(self.PRIMARY_PARSERS):
    -2715            token_type = self._prev.token_type
    -2716            primary = self.PRIMARY_PARSERS[token_type](self, self._prev)
    -2717
    -2718            if token_type == TokenType.STRING:
    -2719                expressions = [primary]
    -2720                while self._match(TokenType.STRING):
    -2721                    expressions.append(exp.Literal.string(self._prev.text))
    -2722                if len(expressions) > 1:
    -2723                    return self.expression(exp.Concat, expressions=expressions)
    -2724            return primary
    +2676    def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]:
    +2677        if self._curr and self._curr.token_type in self.TYPE_TOKENS:
    +2678            return self._parse_types()
    +2679
    +2680        this = self._parse_id_var()
    +2681        self._match(TokenType.COLON)
    +2682        data_type = self._parse_types()
    +2683
    +2684        if not data_type:
    +2685            return None
    +2686        return self.expression(exp.StructKwarg, this=this, expression=data_type)
    +2687
    +2688    def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +2689        if not self._match(TokenType.AT_TIME_ZONE):
    +2690            return this
    +2691        return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary())
    +2692
    +2693    def _parse_column(self) -> t.Optional[exp.Expression]:
    +2694        this = self._parse_field()
    +2695        if isinstance(this, exp.Identifier):
    +2696            this = self.expression(exp.Column, this=this)
    +2697        elif not this:
    +2698            return self._parse_bracket(this)
    +2699        this = self._parse_bracket(this)
    +2700
    +2701        while self._match_set(self.COLUMN_OPERATORS):
    +2702            op_token = self._prev.token_type
    +2703            op = self.COLUMN_OPERATORS.get(op_token)
    +2704
    +2705            if op_token == TokenType.DCOLON:
    +2706                field = self._parse_types()
    +2707                if not field:
    +2708                    self.raise_error("Expected type")
    +2709            elif op:
    +2710                self._advance()
    +2711                value = self._prev.text
    +2712                field = (
    +2713                    exp.Literal.number(value)
    +2714                    if self._prev.token_type == TokenType.NUMBER
    +2715                    else exp.Literal.string(value)
    +2716                )
    +2717            else:
    +2718                field = self._parse_star() or self._parse_function() or self._parse_id_var()
    +2719
    +2720            if isinstance(field, exp.Func):
    +2721                # bigquery allows function calls like x.y.count(...)
    +2722                # SAFE.SUBSTR(...)
    +2723                # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules
    +2724                this = self._replace_columns_with_dots(this)
     2725
    -2726        if self._match_pair(TokenType.DOT, TokenType.NUMBER):
    -2727            return exp.Literal.number(f"0.{self._prev.text}")
    -2728
    -2729        if self._match(TokenType.L_PAREN):
    -2730            comments = self._prev_comments
    -2731            query = self._parse_select()
    -2732
    -2733            if query:
    -2734                expressions = [query]
    -2735            else:
    -2736                expressions = self._parse_csv(
    -2737                    lambda: self._parse_alias(self._parse_conjunction(), explicit=True)
    -2738                )
    +2726            if op:
    +2727                this = op(self, this, field)
    +2728            elif isinstance(this, exp.Column) and not this.args.get("catalog"):
    +2729                this = self.expression(
    +2730                    exp.Column,
    +2731                    this=field,
    +2732                    table=this.this,
    +2733                    db=this.args.get("table"),
    +2734                    catalog=this.args.get("db"),
    +2735                )
    +2736            else:
    +2737                this = self.expression(exp.Dot, this=this, expression=field)
    +2738            this = self._parse_bracket(this)
     2739
    -2740            this = seq_get(expressions, 0)
    -2741            self._parse_query_modifiers(this)
    -2742            self._match_r_paren()
    -2743
    -2744            if isinstance(this, exp.Subqueryable):
    -2745                this = self._parse_set_operations(
    -2746                    self._parse_subquery(this=this, parse_alias=False)
    -2747                )
    -2748            elif len(expressions) > 1:
    -2749                this = self.expression(exp.Tuple, expressions=expressions)
    -2750            else:
    -2751                this = self.expression(exp.Paren, this=this)
    -2752
    -2753            if this and comments:
    -2754                this.comments = comments
    -2755
    -2756            return this
    +2740        return this
    +2741
    +2742    def _parse_primary(self) -> t.Optional[exp.Expression]:
    +2743        if self._match_set(self.PRIMARY_PARSERS):
    +2744            token_type = self._prev.token_type
    +2745            primary = self.PRIMARY_PARSERS[token_type](self, self._prev)
    +2746
    +2747            if token_type == TokenType.STRING:
    +2748                expressions = [primary]
    +2749                while self._match(TokenType.STRING):
    +2750                    expressions.append(exp.Literal.string(self._prev.text))
    +2751                if len(expressions) > 1:
    +2752                    return self.expression(exp.Concat, expressions=expressions)
    +2753            return primary
    +2754
    +2755        if self._match_pair(TokenType.DOT, TokenType.NUMBER):
    +2756            return exp.Literal.number(f"0.{self._prev.text}")
     2757
    -2758        return None
    -2759
    -2760    def _parse_field(self, any_token: bool = False) -> t.Optional[exp.Expression]:
    -2761        return self._parse_primary() or self._parse_function() or self._parse_id_var(any_token)
    -2762
    -2763    def _parse_function(
    -2764        self, functions: t.Optional[t.Dict[str, t.Callable]] = None
    -2765    ) -> t.Optional[exp.Expression]:
    -2766        if not self._curr:
    -2767            return None
    +2758        if self._match(TokenType.L_PAREN):
    +2759            comments = self._prev_comments
    +2760            query = self._parse_select()
    +2761
    +2762            if query:
    +2763                expressions = [query]
    +2764            else:
    +2765                expressions = self._parse_csv(
    +2766                    lambda: self._parse_alias(self._parse_conjunction(), explicit=True)
    +2767                )
     2768
    -2769        token_type = self._curr.token_type
    -2770
    -2771        if self._match_set(self.NO_PAREN_FUNCTION_PARSERS):
    -2772            return self.NO_PAREN_FUNCTION_PARSERS[token_type](self)
    -2773
    -2774        if not self._next or self._next.token_type != TokenType.L_PAREN:
    -2775            if token_type in self.NO_PAREN_FUNCTIONS:
    -2776                self._advance()
    -2777                return self.expression(self.NO_PAREN_FUNCTIONS[token_type])
    -2778
    -2779            return None
    -2780
    -2781        if token_type not in self.FUNC_TOKENS:
    -2782            return None
    -2783
    -2784        this = self._curr.text
    -2785        upper = this.upper()
    -2786        self._advance(2)
    -2787
    -2788        parser = self.FUNCTION_PARSERS.get(upper)
    -2789
    -2790        if parser:
    -2791            this = parser(self)
    -2792        else:
    -2793            subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type)
    -2794
    -2795            if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH):
    -2796                this = self.expression(subquery_predicate, this=self._parse_select())
    -2797                self._match_r_paren()
    -2798                return this
    +2769            this = seq_get(expressions, 0)
    +2770            self._parse_query_modifiers(this)
    +2771            self._match_r_paren()
    +2772
    +2773            if isinstance(this, exp.Subqueryable):
    +2774                this = self._parse_set_operations(
    +2775                    self._parse_subquery(this=this, parse_alias=False)
    +2776                )
    +2777            elif len(expressions) > 1:
    +2778                this = self.expression(exp.Tuple, expressions=expressions)
    +2779            else:
    +2780                this = self.expression(exp.Paren, this=this)
    +2781
    +2782            if this and comments:
    +2783                this.comments = comments
    +2784
    +2785            return this
    +2786
    +2787        return None
    +2788
    +2789    def _parse_field(self, any_token: bool = False) -> t.Optional[exp.Expression]:
    +2790        return self._parse_primary() or self._parse_function() or self._parse_id_var(any_token)
    +2791
    +2792    def _parse_function(
    +2793        self, functions: t.Optional[t.Dict[str, t.Callable]] = None
    +2794    ) -> t.Optional[exp.Expression]:
    +2795        if not self._curr:
    +2796            return None
    +2797
    +2798        token_type = self._curr.token_type
     2799
    -2800            if functions is None:
    -2801                functions = self.FUNCTIONS
    +2800        if self._match_set(self.NO_PAREN_FUNCTION_PARSERS):
    +2801            return self.NO_PAREN_FUNCTION_PARSERS[token_type](self)
     2802
    -2803            function = functions.get(upper)
    -2804            args = self._parse_csv(self._parse_lambda)
    -2805
    -2806            if function:
    -2807                # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the
    -2808                # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists.
    -2809                if count_params(function) == 2:
    -2810                    params = None
    -2811                    if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN):
    -2812                        params = self._parse_csv(self._parse_lambda)
    -2813
    -2814                    this = function(args, params)
    -2815                else:
    -2816                    this = function(args)
    -2817
    -2818                self.validate_expression(this, args)
    -2819            else:
    -2820                this = self.expression(exp.Anonymous, this=this, expressions=args)
    -2821
    -2822        self._match_r_paren(this)
    -2823        return self._parse_window(this)
    -2824
    -2825    def _parse_function_parameter(self) -> t.Optional[exp.Expression]:
    -2826        return self._parse_column_def(self._parse_id_var())
    -2827
    -2828    def _parse_user_defined_function(
    -2829        self, kind: t.Optional[TokenType] = None
    -2830    ) -> t.Optional[exp.Expression]:
    -2831        this = self._parse_id_var()
    -2832
    -2833        while self._match(TokenType.DOT):
    -2834            this = self.expression(exp.Dot, this=this, expression=self._parse_id_var())
    -2835
    -2836        if not self._match(TokenType.L_PAREN):
    -2837            return this
    -2838
    -2839        expressions = self._parse_csv(self._parse_function_parameter)
    -2840        self._match_r_paren()
    -2841        return self.expression(
    -2842            exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True
    -2843        )
    -2844
    -2845    def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]:
    -2846        literal = self._parse_primary()
    -2847        if literal:
    -2848            return self.expression(exp.Introducer, this=token.text, expression=literal)
    -2849
    -2850        return self.expression(exp.Identifier, this=token.text)
    -2851
    -2852    def _parse_national(self, token: Token) -> exp.Expression:
    -2853        return self.expression(exp.National, this=exp.Literal.string(token.text))
    -2854
    -2855    def _parse_session_parameter(self) -> exp.Expression:
    -2856        kind = None
    -2857        this = self._parse_id_var() or self._parse_primary()
    -2858
    -2859        if this and self._match(TokenType.DOT):
    -2860            kind = this.name
    -2861            this = self._parse_var() or self._parse_primary()
    -2862
    -2863        return self.expression(exp.SessionParameter, this=this, kind=kind)
    +2803        if not self._next or self._next.token_type != TokenType.L_PAREN:
    +2804            if token_type in self.NO_PAREN_FUNCTIONS:
    +2805                self._advance()
    +2806                return self.expression(self.NO_PAREN_FUNCTIONS[token_type])
    +2807
    +2808            return None
    +2809
    +2810        if token_type not in self.FUNC_TOKENS:
    +2811            return None
    +2812
    +2813        this = self._curr.text
    +2814        upper = this.upper()
    +2815        self._advance(2)
    +2816
    +2817        parser = self.FUNCTION_PARSERS.get(upper)
    +2818
    +2819        if parser:
    +2820            this = parser(self)
    +2821        else:
    +2822            subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type)
    +2823
    +2824            if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH):
    +2825                this = self.expression(subquery_predicate, this=self._parse_select())
    +2826                self._match_r_paren()
    +2827                return this
    +2828
    +2829            if functions is None:
    +2830                functions = self.FUNCTIONS
    +2831
    +2832            function = functions.get(upper)
    +2833            args = self._parse_csv(self._parse_lambda)
    +2834
    +2835            if function:
    +2836                # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the
    +2837                # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists.
    +2838                if count_params(function) == 2:
    +2839                    params = None
    +2840                    if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN):
    +2841                        params = self._parse_csv(self._parse_lambda)
    +2842
    +2843                    this = function(args, params)
    +2844                else:
    +2845                    this = function(args)
    +2846
    +2847                self.validate_expression(this, args)
    +2848            else:
    +2849                this = self.expression(exp.Anonymous, this=this, expressions=args)
    +2850
    +2851        self._match_r_paren(this)
    +2852        return self._parse_window(this)
    +2853
    +2854    def _parse_function_parameter(self) -> t.Optional[exp.Expression]:
    +2855        return self._parse_column_def(self._parse_id_var())
    +2856
    +2857    def _parse_user_defined_function(
    +2858        self, kind: t.Optional[TokenType] = None
    +2859    ) -> t.Optional[exp.Expression]:
    +2860        this = self._parse_id_var()
    +2861
    +2862        while self._match(TokenType.DOT):
    +2863            this = self.expression(exp.Dot, this=this, expression=self._parse_id_var())
     2864
    -2865    def _parse_lambda(self) -> t.Optional[exp.Expression]:
    -2866        index = self._index
    +2865        if not self._match(TokenType.L_PAREN):
    +2866            return this
     2867
    -2868        if self._match(TokenType.L_PAREN):
    -2869            expressions = self._parse_csv(self._parse_id_var)
    -2870
    -2871            if not self._match(TokenType.R_PAREN):
    -2872                self._retreat(index)
    -2873        else:
    -2874            expressions = [self._parse_id_var()]
    -2875
    -2876        if self._match_set(self.LAMBDAS):
    -2877            return self.LAMBDAS[self._prev.token_type](self, expressions)
    +2868        expressions = self._parse_csv(self._parse_function_parameter)
    +2869        self._match_r_paren()
    +2870        return self.expression(
    +2871            exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True
    +2872        )
    +2873
    +2874    def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]:
    +2875        literal = self._parse_primary()
    +2876        if literal:
    +2877            return self.expression(exp.Introducer, this=token.text, expression=literal)
     2878
    -2879        self._retreat(index)
    +2879        return self.expression(exp.Identifier, this=token.text)
     2880
    -2881        this: t.Optional[exp.Expression]
    -2882
    -2883        if self._match(TokenType.DISTINCT):
    -2884            this = self.expression(
    -2885                exp.Distinct, expressions=self._parse_csv(self._parse_conjunction)
    -2886            )
    -2887        else:
    -2888            this = self._parse_select_or_expression()
    -2889
    -2890        if self._match(TokenType.IGNORE_NULLS):
    -2891            this = self.expression(exp.IgnoreNulls, this=this)
    -2892        else:
    -2893            self._match(TokenType.RESPECT_NULLS)
    -2894
    -2895        return self._parse_limit(self._parse_order(this))
    +2881    def _parse_national(self, token: Token) -> exp.Expression:
    +2882        return self.expression(exp.National, this=exp.Literal.string(token.text))
    +2883
    +2884    def _parse_session_parameter(self) -> exp.Expression:
    +2885        kind = None
    +2886        this = self._parse_id_var() or self._parse_primary()
    +2887
    +2888        if this and self._match(TokenType.DOT):
    +2889            kind = this.name
    +2890            this = self._parse_var() or self._parse_primary()
    +2891
    +2892        return self.expression(exp.SessionParameter, this=this, kind=kind)
    +2893
    +2894    def _parse_lambda(self) -> t.Optional[exp.Expression]:
    +2895        index = self._index
     2896
    -2897    def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]:
    -2898        index = self._index
    -2899        if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT):
    -2900            self._retreat(index)
    -2901            return this
    -2902
    -2903        args = self._parse_csv(
    -2904            lambda: self._parse_constraint()
    -2905            or self._parse_column_def(self._parse_field(any_token=True))
    -2906        )
    -2907        self._match_r_paren()
    -2908        return self.expression(exp.Schema, this=this, expressions=args)
    +2897        if self._match(TokenType.L_PAREN):
    +2898            expressions = self._parse_csv(self._parse_id_var)
    +2899
    +2900            if not self._match(TokenType.R_PAREN):
    +2901                self._retreat(index)
    +2902        else:
    +2903            expressions = [self._parse_id_var()]
    +2904
    +2905        if self._match_set(self.LAMBDAS):
    +2906            return self.LAMBDAS[self._prev.token_type](self, expressions)
    +2907
    +2908        self._retreat(index)
     2909
    -2910    def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    -2911        kind = self._parse_types()
    -2912
    -2913        if self._match_text_seq("FOR", "ORDINALITY"):
    -2914            return self.expression(exp.ColumnDef, this=this, ordinality=True)
    -2915
    -2916        constraints = []
    -2917        while True:
    -2918            constraint = self._parse_column_constraint()
    -2919            if not constraint:
    -2920                break
    -2921            constraints.append(constraint)
    -2922
    -2923        if not kind and not constraints:
    -2924            return this
    +2910        this: t.Optional[exp.Expression]
    +2911
    +2912        if self._match(TokenType.DISTINCT):
    +2913            this = self.expression(
    +2914                exp.Distinct, expressions=self._parse_csv(self._parse_conjunction)
    +2915            )
    +2916        else:
    +2917            this = self._parse_select_or_expression()
    +2918
    +2919        if self._match(TokenType.IGNORE_NULLS):
    +2920            this = self.expression(exp.IgnoreNulls, this=this)
    +2921        else:
    +2922            self._match(TokenType.RESPECT_NULLS)
    +2923
    +2924        return self._parse_limit(self._parse_order(this))
     2925
    -2926        return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints)
    -2927
    -2928    def _parse_auto_increment(self) -> exp.Expression:
    -2929        start = None
    -2930        increment = None
    +2926    def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]:
    +2927        index = self._index
    +2928        if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT):
    +2929            self._retreat(index)
    +2930            return this
     2931
    -2932        if self._match(TokenType.L_PAREN, advance=False):
    -2933            args = self._parse_wrapped_csv(self._parse_bitwise)
    -2934            start = seq_get(args, 0)
    -2935            increment = seq_get(args, 1)
    -2936        elif self._match_text_seq("START"):
    -2937            start = self._parse_bitwise()
    -2938            self._match_text_seq("INCREMENT")
    -2939            increment = self._parse_bitwise()
    -2940
    -2941        if start and increment:
    -2942            return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment)
    -2943
    -2944        return exp.AutoIncrementColumnConstraint()
    -2945
    -2946    def _parse_compress(self) -> exp.Expression:
    -2947        if self._match(TokenType.L_PAREN, advance=False):
    -2948            return self.expression(
    -2949                exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise)
    -2950            )
    +2932        args = self._parse_csv(
    +2933            lambda: self._parse_constraint()
    +2934            or self._parse_column_def(self._parse_field(any_token=True))
    +2935        )
    +2936        self._match_r_paren()
    +2937        return self.expression(exp.Schema, this=this, expressions=args)
    +2938
    +2939    def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +2940        kind = self._parse_types()
    +2941
    +2942        if self._match_text_seq("FOR", "ORDINALITY"):
    +2943            return self.expression(exp.ColumnDef, this=this, ordinality=True)
    +2944
    +2945        constraints = []
    +2946        while True:
    +2947            constraint = self._parse_column_constraint()
    +2948            if not constraint:
    +2949                break
    +2950            constraints.append(constraint)
     2951
    -2952        return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise())
    -2953
    -2954    def _parse_generated_as_identity(self) -> exp.Expression:
    -2955        if self._match(TokenType.BY_DEFAULT):
    -2956            this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False)
    -2957        else:
    -2958            self._match_text_seq("ALWAYS")
    -2959            this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True)
    +2952        if not kind and not constraints:
    +2953            return this
    +2954
    +2955        return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints)
    +2956
    +2957    def _parse_auto_increment(self) -> exp.Expression:
    +2958        start = None
    +2959        increment = None
     2960
    -2961        self._match_text_seq("AS", "IDENTITY")
    -2962        if self._match(TokenType.L_PAREN):
    -2963            if self._match_text_seq("START", "WITH"):
    -2964                this.set("start", self._parse_bitwise())
    -2965            if self._match_text_seq("INCREMENT", "BY"):
    -2966                this.set("increment", self._parse_bitwise())
    -2967            if self._match_text_seq("MINVALUE"):
    -2968                this.set("minvalue", self._parse_bitwise())
    -2969            if self._match_text_seq("MAXVALUE"):
    -2970                this.set("maxvalue", self._parse_bitwise())
    -2971
    -2972            if self._match_text_seq("CYCLE"):
    -2973                this.set("cycle", True)
    -2974            elif self._match_text_seq("NO", "CYCLE"):
    -2975                this.set("cycle", False)
    -2976
    -2977            self._match_r_paren()
    -2978
    -2979        return this
    +2961        if self._match(TokenType.L_PAREN, advance=False):
    +2962            args = self._parse_wrapped_csv(self._parse_bitwise)
    +2963            start = seq_get(args, 0)
    +2964            increment = seq_get(args, 1)
    +2965        elif self._match_text_seq("START"):
    +2966            start = self._parse_bitwise()
    +2967            self._match_text_seq("INCREMENT")
    +2968            increment = self._parse_bitwise()
    +2969
    +2970        if start and increment:
    +2971            return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment)
    +2972
    +2973        return exp.AutoIncrementColumnConstraint()
    +2974
    +2975    def _parse_compress(self) -> exp.Expression:
    +2976        if self._match(TokenType.L_PAREN, advance=False):
    +2977            return self.expression(
    +2978                exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise)
    +2979            )
     2980
    -2981    def _parse_inline(self) -> t.Optional[exp.Expression]:
    -2982        self._match_text_seq("LENGTH")
    -2983        return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise())
    -2984
    -2985    def _parse_not_constraint(self) -> t.Optional[exp.Expression]:
    -2986        if self._match_text_seq("NULL"):
    -2987            return self.expression(exp.NotNullColumnConstraint)
    -2988        if self._match_text_seq("CASESPECIFIC"):
    -2989            return self.expression(exp.CaseSpecificColumnConstraint, not_=True)
    -2990        return None
    -2991
    -2992    def _parse_column_constraint(self) -> t.Optional[exp.Expression]:
    -2993        this = self._parse_references()
    -2994        if this:
    -2995            return this
    -2996
    -2997        if self._match(TokenType.CONSTRAINT):
    -2998            this = self._parse_id_var()
    -2999
    -3000        if self._match_texts(self.CONSTRAINT_PARSERS):
    -3001            return self.expression(
    -3002                exp.ColumnConstraint,
    -3003                this=this,
    -3004                kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self),
    -3005            )
    -3006
    -3007        return this
    -3008
    -3009    def _parse_constraint(self) -> t.Optional[exp.Expression]:
    -3010        if not self._match(TokenType.CONSTRAINT):
    -3011            return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS)
    -3012
    -3013        this = self._parse_id_var()
    -3014        expressions = []
    -3015
    -3016        while True:
    -3017            constraint = self._parse_unnamed_constraint() or self._parse_function()
    -3018            if not constraint:
    -3019                break
    -3020            expressions.append(constraint)
    -3021
    -3022        return self.expression(exp.Constraint, this=this, expressions=expressions)
    -3023
    -3024    def _parse_unnamed_constraint(
    -3025        self, constraints: t.Optional[t.Collection[str]] = None
    -3026    ) -> t.Optional[exp.Expression]:
    -3027        if not self._match_texts(constraints or self.CONSTRAINT_PARSERS):
    -3028            return None
    -3029
    -3030        constraint = self._prev.text.upper()
    -3031        if constraint not in self.CONSTRAINT_PARSERS:
    -3032            self.raise_error(f"No parser found for schema constraint {constraint}.")
    -3033
    -3034        return self.CONSTRAINT_PARSERS[constraint](self)
    +2981        return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise())
    +2982
    +2983    def _parse_generated_as_identity(self) -> exp.Expression:
    +2984        if self._match(TokenType.BY_DEFAULT):
    +2985            this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False)
    +2986        else:
    +2987            self._match_text_seq("ALWAYS")
    +2988            this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True)
    +2989
    +2990        self._match_text_seq("AS", "IDENTITY")
    +2991        if self._match(TokenType.L_PAREN):
    +2992            if self._match_text_seq("START", "WITH"):
    +2993                this.set("start", self._parse_bitwise())
    +2994            if self._match_text_seq("INCREMENT", "BY"):
    +2995                this.set("increment", self._parse_bitwise())
    +2996            if self._match_text_seq("MINVALUE"):
    +2997                this.set("minvalue", self._parse_bitwise())
    +2998            if self._match_text_seq("MAXVALUE"):
    +2999                this.set("maxvalue", self._parse_bitwise())
    +3000
    +3001            if self._match_text_seq("CYCLE"):
    +3002                this.set("cycle", True)
    +3003            elif self._match_text_seq("NO", "CYCLE"):
    +3004                this.set("cycle", False)
    +3005
    +3006            self._match_r_paren()
    +3007
    +3008        return this
    +3009
    +3010    def _parse_inline(self) -> t.Optional[exp.Expression]:
    +3011        self._match_text_seq("LENGTH")
    +3012        return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise())
    +3013
    +3014    def _parse_not_constraint(self) -> t.Optional[exp.Expression]:
    +3015        if self._match_text_seq("NULL"):
    +3016            return self.expression(exp.NotNullColumnConstraint)
    +3017        if self._match_text_seq("CASESPECIFIC"):
    +3018            return self.expression(exp.CaseSpecificColumnConstraint, not_=True)
    +3019        return None
    +3020
    +3021    def _parse_column_constraint(self) -> t.Optional[exp.Expression]:
    +3022        this = self._parse_references()
    +3023        if this:
    +3024            return this
    +3025
    +3026        if self._match(TokenType.CONSTRAINT):
    +3027            this = self._parse_id_var()
    +3028
    +3029        if self._match_texts(self.CONSTRAINT_PARSERS):
    +3030            return self.expression(
    +3031                exp.ColumnConstraint,
    +3032                this=this,
    +3033                kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self),
    +3034            )
     3035
    -3036    def _parse_unique(self) -> exp.Expression:
    -3037        if not self._match(TokenType.L_PAREN, advance=False):
    -3038            return self.expression(exp.UniqueColumnConstraint)
    -3039        return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars())
    -3040
    -3041    def _parse_key_constraint_options(self) -> t.List[str]:
    -3042        options = []
    -3043        while True:
    -3044            if not self._curr:
    -3045                break
    -3046
    -3047            if self._match(TokenType.ON):
    -3048                action = None
    -3049                on = self._advance_any() and self._prev.text
    +3036        return this
    +3037
    +3038    def _parse_constraint(self) -> t.Optional[exp.Expression]:
    +3039        if not self._match(TokenType.CONSTRAINT):
    +3040            return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS)
    +3041
    +3042        this = self._parse_id_var()
    +3043        expressions = []
    +3044
    +3045        while True:
    +3046            constraint = self._parse_unnamed_constraint() or self._parse_function()
    +3047            if not constraint:
    +3048                break
    +3049            expressions.append(constraint)
     3050
    -3051                if self._match(TokenType.NO_ACTION):
    -3052                    action = "NO ACTION"
    -3053                elif self._match(TokenType.CASCADE):
    -3054                    action = "CASCADE"
    -3055                elif self._match_pair(TokenType.SET, TokenType.NULL):
    -3056                    action = "SET NULL"
    -3057                elif self._match_pair(TokenType.SET, TokenType.DEFAULT):
    -3058                    action = "SET DEFAULT"
    -3059                else:
    -3060                    self.raise_error("Invalid key constraint")
    -3061
    -3062                options.append(f"ON {on} {action}")
    -3063            elif self._match_text_seq("NOT", "ENFORCED"):
    -3064                options.append("NOT ENFORCED")
    -3065            elif self._match_text_seq("DEFERRABLE"):
    -3066                options.append("DEFERRABLE")
    -3067            elif self._match_text_seq("INITIALLY", "DEFERRED"):
    -3068                options.append("INITIALLY DEFERRED")
    -3069            elif self._match_text_seq("NORELY"):
    -3070                options.append("NORELY")
    -3071            elif self._match_text_seq("MATCH", "FULL"):
    -3072                options.append("MATCH FULL")
    -3073            else:
    +3051        return self.expression(exp.Constraint, this=this, expressions=expressions)
    +3052
    +3053    def _parse_unnamed_constraint(
    +3054        self, constraints: t.Optional[t.Collection[str]] = None
    +3055    ) -> t.Optional[exp.Expression]:
    +3056        if not self._match_texts(constraints or self.CONSTRAINT_PARSERS):
    +3057            return None
    +3058
    +3059        constraint = self._prev.text.upper()
    +3060        if constraint not in self.CONSTRAINT_PARSERS:
    +3061            self.raise_error(f"No parser found for schema constraint {constraint}.")
    +3062
    +3063        return self.CONSTRAINT_PARSERS[constraint](self)
    +3064
    +3065    def _parse_unique(self) -> exp.Expression:
    +3066        if not self._match(TokenType.L_PAREN, advance=False):
    +3067            return self.expression(exp.UniqueColumnConstraint)
    +3068        return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars())
    +3069
    +3070    def _parse_key_constraint_options(self) -> t.List[str]:
    +3071        options = []
    +3072        while True:
    +3073            if not self._curr:
     3074                break
     3075
    -3076        return options
    -3077
    -3078    def _parse_references(self) -> t.Optional[exp.Expression]:
    -3079        if not self._match(TokenType.REFERENCES):
    -3080            return None
    -3081
    -3082        expressions = None
    -3083        this = self._parse_id_var()
    -3084
    -3085        if self._match(TokenType.L_PAREN, advance=False):
    -3086            expressions = self._parse_wrapped_id_vars()
    -3087
    -3088        options = self._parse_key_constraint_options()
    -3089        return self.expression(exp.Reference, this=this, expressions=expressions, options=options)
    +3076            if self._match(TokenType.ON):
    +3077                action = None
    +3078                on = self._advance_any() and self._prev.text
    +3079
    +3080                if self._match(TokenType.NO_ACTION):
    +3081                    action = "NO ACTION"
    +3082                elif self._match(TokenType.CASCADE):
    +3083                    action = "CASCADE"
    +3084                elif self._match_pair(TokenType.SET, TokenType.NULL):
    +3085                    action = "SET NULL"
    +3086                elif self._match_pair(TokenType.SET, TokenType.DEFAULT):
    +3087                    action = "SET DEFAULT"
    +3088                else:
    +3089                    self.raise_error("Invalid key constraint")
     3090
    -3091    def _parse_foreign_key(self) -> exp.Expression:
    -3092        expressions = self._parse_wrapped_id_vars()
    -3093        reference = self._parse_references()
    -3094        options = {}
    -3095
    -3096        while self._match(TokenType.ON):
    -3097            if not self._match_set((TokenType.DELETE, TokenType.UPDATE)):
    -3098                self.raise_error("Expected DELETE or UPDATE")
    -3099
    -3100            kind = self._prev.text.lower()
    -3101
    -3102            if self._match(TokenType.NO_ACTION):
    -3103                action = "NO ACTION"
    -3104            elif self._match(TokenType.SET):
    -3105                self._match_set((TokenType.NULL, TokenType.DEFAULT))
    -3106                action = "SET " + self._prev.text.upper()
    -3107            else:
    -3108                self._advance()
    -3109                action = self._prev.text.upper()
    +3091                options.append(f"ON {on} {action}")
    +3092            elif self._match_text_seq("NOT", "ENFORCED"):
    +3093                options.append("NOT ENFORCED")
    +3094            elif self._match_text_seq("DEFERRABLE"):
    +3095                options.append("DEFERRABLE")
    +3096            elif self._match_text_seq("INITIALLY", "DEFERRED"):
    +3097                options.append("INITIALLY DEFERRED")
    +3098            elif self._match_text_seq("NORELY"):
    +3099                options.append("NORELY")
    +3100            elif self._match_text_seq("MATCH", "FULL"):
    +3101                options.append("MATCH FULL")
    +3102            else:
    +3103                break
    +3104
    +3105        return options
    +3106
    +3107    def _parse_references(self) -> t.Optional[exp.Expression]:
    +3108        if not self._match(TokenType.REFERENCES):
    +3109            return None
     3110
    -3111            options[kind] = action
    -3112
    -3113        return self.expression(
    -3114            exp.ForeignKey, expressions=expressions, reference=reference, **options  # type: ignore
    -3115        )
    +3111        expressions = None
    +3112        this = self._parse_id_var()
    +3113
    +3114        if self._match(TokenType.L_PAREN, advance=False):
    +3115            expressions = self._parse_wrapped_id_vars()
     3116
    -3117    def _parse_primary_key(self) -> exp.Expression:
    -3118        desc = (
    -3119            self._match_set((TokenType.ASC, TokenType.DESC))
    -3120            and self._prev.token_type == TokenType.DESC
    -3121        )
    -3122
    -3123        if not self._match(TokenType.L_PAREN, advance=False):
    -3124            return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc)
    -3125
    -3126        expressions = self._parse_wrapped_id_vars()
    -3127        options = self._parse_key_constraint_options()
    -3128        return self.expression(exp.PrimaryKey, expressions=expressions, options=options)
    -3129
    -3130    def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    -3131        if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)):
    -3132            return this
    -3133
    -3134        bracket_kind = self._prev.token_type
    -3135        expressions: t.List[t.Optional[exp.Expression]]
    -3136
    -3137        if self._match(TokenType.COLON):
    -3138            expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())]
    -3139        else:
    -3140            expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction()))
    +3117        options = self._parse_key_constraint_options()
    +3118        return self.expression(exp.Reference, this=this, expressions=expressions, options=options)
    +3119
    +3120    def _parse_foreign_key(self) -> exp.Expression:
    +3121        expressions = self._parse_wrapped_id_vars()
    +3122        reference = self._parse_references()
    +3123        options = {}
    +3124
    +3125        while self._match(TokenType.ON):
    +3126            if not self._match_set((TokenType.DELETE, TokenType.UPDATE)):
    +3127                self.raise_error("Expected DELETE or UPDATE")
    +3128
    +3129            kind = self._prev.text.lower()
    +3130
    +3131            if self._match(TokenType.NO_ACTION):
    +3132                action = "NO ACTION"
    +3133            elif self._match(TokenType.SET):
    +3134                self._match_set((TokenType.NULL, TokenType.DEFAULT))
    +3135                action = "SET " + self._prev.text.upper()
    +3136            else:
    +3137                self._advance()
    +3138                action = self._prev.text.upper()
    +3139
    +3140            options[kind] = action
     3141
    -3142        # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs
    -3143        if bracket_kind == TokenType.L_BRACE:
    -3144            this = self.expression(exp.Struct, expressions=expressions)
    -3145        elif not this or this.name.upper() == "ARRAY":
    -3146            this = self.expression(exp.Array, expressions=expressions)
    -3147        else:
    -3148            expressions = apply_index_offset(expressions, -self.index_offset)
    -3149            this = self.expression(exp.Bracket, this=this, expressions=expressions)
    -3150
    -3151        if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET:
    -3152            self.raise_error("Expected ]")
    -3153        elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE:
    -3154            self.raise_error("Expected }")
    -3155
    -3156        this.comments = self._prev_comments
    -3157        return self._parse_bracket(this)
    +3142        return self.expression(
    +3143            exp.ForeignKey, expressions=expressions, reference=reference, **options  # type: ignore
    +3144        )
    +3145
    +3146    def _parse_primary_key(self) -> exp.Expression:
    +3147        desc = (
    +3148            self._match_set((TokenType.ASC, TokenType.DESC))
    +3149            and self._prev.token_type == TokenType.DESC
    +3150        )
    +3151
    +3152        if not self._match(TokenType.L_PAREN, advance=False):
    +3153            return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc)
    +3154
    +3155        expressions = self._parse_wrapped_id_vars()
    +3156        options = self._parse_key_constraint_options()
    +3157        return self.expression(exp.PrimaryKey, expressions=expressions, options=options)
     3158
    -3159    def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    -3160        if self._match(TokenType.COLON):
    -3161            return self.expression(exp.Slice, this=this, expression=self._parse_conjunction())
    -3162        return this
    -3163
    -3164    def _parse_case(self) -> t.Optional[exp.Expression]:
    -3165        ifs = []
    -3166        default = None
    -3167
    -3168        expression = self._parse_conjunction()
    -3169
    -3170        while self._match(TokenType.WHEN):
    -3171            this = self._parse_conjunction()
    -3172            self._match(TokenType.THEN)
    -3173            then = self._parse_conjunction()
    -3174            ifs.append(self.expression(exp.If, this=this, true=then))
    -3175
    -3176        if self._match(TokenType.ELSE):
    -3177            default = self._parse_conjunction()
    -3178
    -3179        if not self._match(TokenType.END):
    -3180            self.raise_error("Expected END after CASE", self._prev)
    -3181
    -3182        return self._parse_window(
    -3183            self.expression(exp.Case, this=expression, ifs=ifs, default=default)
    -3184        )
    -3185
    -3186    def _parse_if(self) -> t.Optional[exp.Expression]:
    -3187        if self._match(TokenType.L_PAREN):
    -3188            args = self._parse_csv(self._parse_conjunction)
    -3189            this = exp.If.from_arg_list(args)
    -3190            self.validate_expression(this, args)
    -3191            self._match_r_paren()
    -3192        else:
    -3193            condition = self._parse_conjunction()
    -3194            self._match(TokenType.THEN)
    -3195            true = self._parse_conjunction()
    -3196            false = self._parse_conjunction() if self._match(TokenType.ELSE) else None
    -3197            self._match(TokenType.END)
    -3198            this = self.expression(exp.If, this=condition, true=true, false=false)
    -3199
    -3200        return self._parse_window(this)
    -3201
    -3202    def _parse_extract(self) -> exp.Expression:
    -3203        this = self._parse_function() or self._parse_var() or self._parse_type()
    +3159    def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +3160        if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)):
    +3161            return this
    +3162
    +3163        bracket_kind = self._prev.token_type
    +3164        expressions: t.List[t.Optional[exp.Expression]]
    +3165
    +3166        if self._match(TokenType.COLON):
    +3167            expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())]
    +3168        else:
    +3169            expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction()))
    +3170
    +3171        # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs
    +3172        if bracket_kind == TokenType.L_BRACE:
    +3173            this = self.expression(exp.Struct, expressions=expressions)
    +3174        elif not this or this.name.upper() == "ARRAY":
    +3175            this = self.expression(exp.Array, expressions=expressions)
    +3176        else:
    +3177            expressions = apply_index_offset(expressions, -self.index_offset)
    +3178            this = self.expression(exp.Bracket, this=this, expressions=expressions)
    +3179
    +3180        if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET:
    +3181            self.raise_error("Expected ]")
    +3182        elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE:
    +3183            self.raise_error("Expected }")
    +3184
    +3185        this.comments = self._prev_comments
    +3186        return self._parse_bracket(this)
    +3187
    +3188    def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +3189        if self._match(TokenType.COLON):
    +3190            return self.expression(exp.Slice, this=this, expression=self._parse_conjunction())
    +3191        return this
    +3192
    +3193    def _parse_case(self) -> t.Optional[exp.Expression]:
    +3194        ifs = []
    +3195        default = None
    +3196
    +3197        expression = self._parse_conjunction()
    +3198
    +3199        while self._match(TokenType.WHEN):
    +3200            this = self._parse_conjunction()
    +3201            self._match(TokenType.THEN)
    +3202            then = self._parse_conjunction()
    +3203            ifs.append(self.expression(exp.If, this=this, true=then))
     3204
    -3205        if self._match(TokenType.FROM):
    -3206            return self.expression(exp.Extract, this=this, expression=self._parse_bitwise())
    +3205        if self._match(TokenType.ELSE):
    +3206            default = self._parse_conjunction()
     3207
    -3208        if not self._match(TokenType.COMMA):
    -3209            self.raise_error("Expected FROM or comma after EXTRACT", self._prev)
    +3208        if not self._match(TokenType.END):
    +3209            self.raise_error("Expected END after CASE", self._prev)
     3210
    -3211        return self.expression(exp.Extract, this=this, expression=self._parse_bitwise())
    -3212
    -3213    def _parse_cast(self, strict: bool) -> exp.Expression:
    -3214        this = self._parse_conjunction()
    -3215
    -3216        if not self._match(TokenType.ALIAS):
    -3217            self.raise_error("Expected AS after CAST")
    -3218
    -3219        to = self._parse_types()
    -3220
    -3221        if not to:
    -3222            self.raise_error("Expected TYPE after CAST")
    -3223        elif to.this == exp.DataType.Type.CHAR:
    -3224            if self._match(TokenType.CHARACTER_SET):
    -3225                to = self.expression(exp.CharacterSet, this=self._parse_var_or_string())
    -3226
    -3227        return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
    +3211        return self._parse_window(
    +3212            self.expression(exp.Case, this=expression, ifs=ifs, default=default)
    +3213        )
    +3214
    +3215    def _parse_if(self) -> t.Optional[exp.Expression]:
    +3216        if self._match(TokenType.L_PAREN):
    +3217            args = self._parse_csv(self._parse_conjunction)
    +3218            this = exp.If.from_arg_list(args)
    +3219            self.validate_expression(this, args)
    +3220            self._match_r_paren()
    +3221        else:
    +3222            condition = self._parse_conjunction()
    +3223            self._match(TokenType.THEN)
    +3224            true = self._parse_conjunction()
    +3225            false = self._parse_conjunction() if self._match(TokenType.ELSE) else None
    +3226            self._match(TokenType.END)
    +3227            this = self.expression(exp.If, this=condition, true=true, false=false)
     3228
    -3229    def _parse_string_agg(self) -> exp.Expression:
    -3230        expression: t.Optional[exp.Expression]
    -3231
    -3232        if self._match(TokenType.DISTINCT):
    -3233            args = self._parse_csv(self._parse_conjunction)
    -3234            expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)])
    -3235        else:
    -3236            args = self._parse_csv(self._parse_conjunction)
    -3237            expression = seq_get(args, 0)
    -3238
    -3239        index = self._index
    -3240        if not self._match(TokenType.R_PAREN):
    -3241            # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]])
    -3242            order = self._parse_order(this=expression)
    -3243            return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1))
    +3229        return self._parse_window(this)
    +3230
    +3231    def _parse_extract(self) -> exp.Expression:
    +3232        this = self._parse_function() or self._parse_var() or self._parse_type()
    +3233
    +3234        if self._match(TokenType.FROM):
    +3235            return self.expression(exp.Extract, this=this, expression=self._parse_bitwise())
    +3236
    +3237        if not self._match(TokenType.COMMA):
    +3238            self.raise_error("Expected FROM or comma after EXTRACT", self._prev)
    +3239
    +3240        return self.expression(exp.Extract, this=this, expression=self._parse_bitwise())
    +3241
    +3242    def _parse_cast(self, strict: bool) -> exp.Expression:
    +3243        this = self._parse_conjunction()
     3244
    -3245        # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]).
    -3246        # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that
    -3247        # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them.
    -3248        if not self._match(TokenType.WITHIN_GROUP):
    -3249            self._retreat(index)
    -3250            this = exp.GroupConcat.from_arg_list(args)
    -3251            self.validate_expression(this, args)
    -3252            return this
    -3253
    -3254        self._match_l_paren()  # The corresponding match_r_paren will be called in parse_function (caller)
    -3255        order = self._parse_order(this=expression)
    -3256        return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1))
    +3245        if not self._match(TokenType.ALIAS):
    +3246            self.raise_error("Expected AS after CAST")
    +3247
    +3248        to = self._parse_types()
    +3249
    +3250        if not to:
    +3251            self.raise_error("Expected TYPE after CAST")
    +3252        elif to.this == exp.DataType.Type.CHAR:
    +3253            if self._match(TokenType.CHARACTER_SET):
    +3254                to = self.expression(exp.CharacterSet, this=self._parse_var_or_string())
    +3255
    +3256        return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
     3257
    -3258    def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]:
    -3259        to: t.Optional[exp.Expression]
    -3260        this = self._parse_column()
    -3261
    -3262        if self._match(TokenType.USING):
    -3263            to = self.expression(exp.CharacterSet, this=self._parse_var())
    -3264        elif self._match(TokenType.COMMA):
    -3265            to = self._parse_types()
    -3266        else:
    -3267            to = None
    -3268
    -3269        return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
    -3270
    -3271    def _parse_position(self, haystack_first: bool = False) -> exp.Expression:
    -3272        args = self._parse_csv(self._parse_bitwise)
    +3258    def _parse_string_agg(self) -> exp.Expression:
    +3259        expression: t.Optional[exp.Expression]
    +3260
    +3261        if self._match(TokenType.DISTINCT):
    +3262            args = self._parse_csv(self._parse_conjunction)
    +3263            expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)])
    +3264        else:
    +3265            args = self._parse_csv(self._parse_conjunction)
    +3266            expression = seq_get(args, 0)
    +3267
    +3268        index = self._index
    +3269        if not self._match(TokenType.R_PAREN):
    +3270            # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]])
    +3271            order = self._parse_order(this=expression)
    +3272            return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1))
     3273
    -3274        if self._match(TokenType.IN):
    -3275            return self.expression(
    -3276                exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0)
    -3277            )
    -3278
    -3279        if haystack_first:
    -3280            haystack = seq_get(args, 0)
    -3281            needle = seq_get(args, 1)
    -3282        else:
    -3283            needle = seq_get(args, 0)
    -3284            haystack = seq_get(args, 1)
    -3285
    -3286        this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2))
    -3287
    -3288        self.validate_expression(this, args)
    -3289
    -3290        return this
    -3291
    -3292    def _parse_join_hint(self, func_name: str) -> exp.Expression:
    -3293        args = self._parse_csv(self._parse_table)
    -3294        return exp.JoinHint(this=func_name.upper(), expressions=args)
    -3295
    -3296    def _parse_substring(self) -> exp.Expression:
    -3297        # Postgres supports the form: substring(string [from int] [for int])
    -3298        # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6
    +3274        # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]).
    +3275        # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that
    +3276        # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them.
    +3277        if not self._match(TokenType.WITHIN_GROUP):
    +3278            self._retreat(index)
    +3279            this = exp.GroupConcat.from_arg_list(args)
    +3280            self.validate_expression(this, args)
    +3281            return this
    +3282
    +3283        self._match_l_paren()  # The corresponding match_r_paren will be called in parse_function (caller)
    +3284        order = self._parse_order(this=expression)
    +3285        return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1))
    +3286
    +3287    def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]:
    +3288        to: t.Optional[exp.Expression]
    +3289        this = self._parse_column()
    +3290
    +3291        if self._match(TokenType.USING):
    +3292            to = self.expression(exp.CharacterSet, this=self._parse_var())
    +3293        elif self._match(TokenType.COMMA):
    +3294            to = self._parse_types()
    +3295        else:
    +3296            to = None
    +3297
    +3298        return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
     3299
    -3300        args = self._parse_csv(self._parse_bitwise)
    -3301
    -3302        if self._match(TokenType.FROM):
    -3303            args.append(self._parse_bitwise())
    -3304            if self._match(TokenType.FOR):
    -3305                args.append(self._parse_bitwise())
    -3306
    -3307        this = exp.Substring.from_arg_list(args)
    -3308        self.validate_expression(this, args)
    -3309
    -3310        return this
    -3311
    -3312    def _parse_trim(self) -> exp.Expression:
    -3313        # https://www.w3resource.com/sql/character-functions/trim.php
    -3314        # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html
    -3315
    -3316        position = None
    -3317        collation = None
    +3300    def _parse_position(self, haystack_first: bool = False) -> exp.Expression:
    +3301        args = self._parse_csv(self._parse_bitwise)
    +3302
    +3303        if self._match(TokenType.IN):
    +3304            return self.expression(
    +3305                exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0)
    +3306            )
    +3307
    +3308        if haystack_first:
    +3309            haystack = seq_get(args, 0)
    +3310            needle = seq_get(args, 1)
    +3311        else:
    +3312            needle = seq_get(args, 0)
    +3313            haystack = seq_get(args, 1)
    +3314
    +3315        this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2))
    +3316
    +3317        self.validate_expression(this, args)
     3318
    -3319        if self._match_set(self.TRIM_TYPES):
    -3320            position = self._prev.text.upper()
    -3321
    -3322        expression = self._parse_term()
    -3323        if self._match_set((TokenType.FROM, TokenType.COMMA)):
    -3324            this = self._parse_term()
    -3325        else:
    -3326            this = expression
    -3327            expression = None
    +3319        return this
    +3320
    +3321    def _parse_join_hint(self, func_name: str) -> exp.Expression:
    +3322        args = self._parse_csv(self._parse_table)
    +3323        return exp.JoinHint(this=func_name.upper(), expressions=args)
    +3324
    +3325    def _parse_substring(self) -> exp.Expression:
    +3326        # Postgres supports the form: substring(string [from int] [for int])
    +3327        # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6
     3328
    -3329        if self._match(TokenType.COLLATE):
    -3330            collation = self._parse_term()
    -3331
    -3332        return self.expression(
    -3333            exp.Trim,
    -3334            this=this,
    -3335            position=position,
    -3336            expression=expression,
    -3337            collation=collation,
    -3338        )
    -3339
    -3340    def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    -3341        return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window)
    -3342
    -3343    def _parse_named_window(self) -> t.Optional[exp.Expression]:
    -3344        return self._parse_window(self._parse_id_var(), alias=True)
    -3345
    -3346    def _parse_window(
    -3347        self, this: t.Optional[exp.Expression], alias: bool = False
    -3348    ) -> t.Optional[exp.Expression]:
    -3349        if self._match(TokenType.FILTER):
    -3350            where = self._parse_wrapped(self._parse_where)
    -3351            this = self.expression(exp.Filter, this=this, expression=where)
    -3352
    -3353        # T-SQL allows the OVER (...) syntax after WITHIN GROUP.
    -3354        # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16
    -3355        if self._match(TokenType.WITHIN_GROUP):
    -3356            order = self._parse_wrapped(self._parse_order)
    -3357            this = self.expression(exp.WithinGroup, this=this, expression=order)
    -3358
    -3359        # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER
    -3360        # Some dialects choose to implement and some do not.
    -3361        # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html
    -3362
    -3363        # There is some code above in _parse_lambda that handles
    -3364        #   SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ...
    -3365
    -3366        # The below changes handle
    -3367        #   SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ...
    +3329        args = self._parse_csv(self._parse_bitwise)
    +3330
    +3331        if self._match(TokenType.FROM):
    +3332            args.append(self._parse_bitwise())
    +3333            if self._match(TokenType.FOR):
    +3334                args.append(self._parse_bitwise())
    +3335
    +3336        this = exp.Substring.from_arg_list(args)
    +3337        self.validate_expression(this, args)
    +3338
    +3339        return this
    +3340
    +3341    def _parse_trim(self) -> exp.Expression:
    +3342        # https://www.w3resource.com/sql/character-functions/trim.php
    +3343        # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html
    +3344
    +3345        position = None
    +3346        collation = None
    +3347
    +3348        if self._match_set(self.TRIM_TYPES):
    +3349            position = self._prev.text.upper()
    +3350
    +3351        expression = self._parse_term()
    +3352        if self._match_set((TokenType.FROM, TokenType.COMMA)):
    +3353            this = self._parse_term()
    +3354        else:
    +3355            this = expression
    +3356            expression = None
    +3357
    +3358        if self._match(TokenType.COLLATE):
    +3359            collation = self._parse_term()
    +3360
    +3361        return self.expression(
    +3362            exp.Trim,
    +3363            this=this,
    +3364            position=position,
    +3365            expression=expression,
    +3366            collation=collation,
    +3367        )
     3368
    -3369        # Oracle allows both formats
    -3370        #   (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html)
    -3371        #   and Snowflake chose to do the same for familiarity
    -3372        #   https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes
    -3373        if self._match(TokenType.IGNORE_NULLS):
    -3374            this = self.expression(exp.IgnoreNulls, this=this)
    -3375        elif self._match(TokenType.RESPECT_NULLS):
    -3376            this = self.expression(exp.RespectNulls, this=this)
    -3377
    -3378        # bigquery select from window x AS (partition by ...)
    -3379        if alias:
    -3380            self._match(TokenType.ALIAS)
    -3381        elif not self._match(TokenType.OVER):
    -3382            return this
    -3383
    -3384        if not self._match(TokenType.L_PAREN):
    -3385            return self.expression(exp.Window, this=this, alias=self._parse_id_var(False))
    -3386
    -3387        window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS)
    -3388        partition = self._parse_partition_by()
    -3389        order = self._parse_order()
    -3390        kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text
    +3369    def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    +3370        return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window)
    +3371
    +3372    def _parse_named_window(self) -> t.Optional[exp.Expression]:
    +3373        return self._parse_window(self._parse_id_var(), alias=True)
    +3374
    +3375    def _parse_window(
    +3376        self, this: t.Optional[exp.Expression], alias: bool = False
    +3377    ) -> t.Optional[exp.Expression]:
    +3378        if self._match(TokenType.FILTER):
    +3379            where = self._parse_wrapped(self._parse_where)
    +3380            this = self.expression(exp.Filter, this=this, expression=where)
    +3381
    +3382        # T-SQL allows the OVER (...) syntax after WITHIN GROUP.
    +3383        # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16
    +3384        if self._match(TokenType.WITHIN_GROUP):
    +3385            order = self._parse_wrapped(self._parse_order)
    +3386            this = self.expression(exp.WithinGroup, this=this, expression=order)
    +3387
    +3388        # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER
    +3389        # Some dialects choose to implement and some do not.
    +3390        # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html
     3391
    -3392        if kind:
    -3393            self._match(TokenType.BETWEEN)
    -3394            start = self._parse_window_spec()
    -3395            self._match(TokenType.AND)
    -3396            end = self._parse_window_spec()
    +3392        # There is some code above in _parse_lambda that handles
    +3393        #   SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ...
    +3394
    +3395        # The below changes handle
    +3396        #   SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ...
     3397
    -3398            spec = self.expression(
    -3399                exp.WindowSpec,
    -3400                kind=kind,
    -3401                start=start["value"],
    -3402                start_side=start["side"],
    -3403                end=end["value"],
    -3404                end_side=end["side"],
    -3405            )
    -3406        else:
    -3407            spec = None
    -3408
    -3409        self._match_r_paren()
    -3410
    -3411        return self.expression(
    -3412            exp.Window,
    -3413            this=this,
    -3414            partition_by=partition,
    -3415            order=order,
    -3416            spec=spec,
    -3417            alias=window_alias,
    -3418        )
    -3419
    -3420    def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]:
    -3421        self._match(TokenType.BETWEEN)
    -3422
    -3423        return {
    -3424            "value": (
    -3425                self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text
    -3426            )
    -3427            or self._parse_bitwise(),
    -3428            "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text,
    -3429        }
    -3430
    -3431    def _parse_alias(
    -3432        self, this: t.Optional[exp.Expression], explicit: bool = False
    -3433    ) -> t.Optional[exp.Expression]:
    -3434        any_token = self._match(TokenType.ALIAS)
    -3435
    -3436        if explicit and not any_token:
    -3437            return this
    -3438
    -3439        if self._match(TokenType.L_PAREN):
    -3440            aliases = self.expression(
    -3441                exp.Aliases,
    -3442                this=this,
    -3443                expressions=self._parse_csv(lambda: self._parse_id_var(any_token)),
    -3444            )
    -3445            self._match_r_paren(aliases)
    -3446            return aliases
    -3447
    -3448        alias = self._parse_id_var(any_token)
    -3449
    -3450        if alias:
    -3451            return self.expression(exp.Alias, this=this, alias=alias)
    -3452
    -3453        return this
    -3454
    -3455    def _parse_id_var(
    -3456        self,
    -3457        any_token: bool = True,
    -3458        tokens: t.Optional[t.Collection[TokenType]] = None,
    -3459        prefix_tokens: t.Optional[t.Collection[TokenType]] = None,
    -3460    ) -> t.Optional[exp.Expression]:
    -3461        identifier = self._parse_identifier()
    -3462
    -3463        if identifier:
    -3464            return identifier
    -3465
    -3466        prefix = ""
    +3398        # Oracle allows both formats
    +3399        #   (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html)
    +3400        #   and Snowflake chose to do the same for familiarity
    +3401        #   https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes
    +3402        if self._match(TokenType.IGNORE_NULLS):
    +3403            this = self.expression(exp.IgnoreNulls, this=this)
    +3404        elif self._match(TokenType.RESPECT_NULLS):
    +3405            this = self.expression(exp.RespectNulls, this=this)
    +3406
    +3407        # bigquery select from window x AS (partition by ...)
    +3408        if alias:
    +3409            self._match(TokenType.ALIAS)
    +3410        elif not self._match(TokenType.OVER):
    +3411            return this
    +3412
    +3413        if not self._match(TokenType.L_PAREN):
    +3414            return self.expression(exp.Window, this=this, alias=self._parse_id_var(False))
    +3415
    +3416        window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS)
    +3417        partition = self._parse_partition_by()
    +3418        order = self._parse_order()
    +3419        kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text
    +3420
    +3421        if kind:
    +3422            self._match(TokenType.BETWEEN)
    +3423            start = self._parse_window_spec()
    +3424            self._match(TokenType.AND)
    +3425            end = self._parse_window_spec()
    +3426
    +3427            spec = self.expression(
    +3428                exp.WindowSpec,
    +3429                kind=kind,
    +3430                start=start["value"],
    +3431                start_side=start["side"],
    +3432                end=end["value"],
    +3433                end_side=end["side"],
    +3434            )
    +3435        else:
    +3436            spec = None
    +3437
    +3438        self._match_r_paren()
    +3439
    +3440        return self.expression(
    +3441            exp.Window,
    +3442            this=this,
    +3443            partition_by=partition,
    +3444            order=order,
    +3445            spec=spec,
    +3446            alias=window_alias,
    +3447        )
    +3448
    +3449    def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]:
    +3450        self._match(TokenType.BETWEEN)
    +3451
    +3452        return {
    +3453            "value": (
    +3454                self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text
    +3455            )
    +3456            or self._parse_bitwise(),
    +3457            "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text,
    +3458        }
    +3459
    +3460    def _parse_alias(
    +3461        self, this: t.Optional[exp.Expression], explicit: bool = False
    +3462    ) -> t.Optional[exp.Expression]:
    +3463        any_token = self._match(TokenType.ALIAS)
    +3464
    +3465        if explicit and not any_token:
    +3466            return this
     3467
    -3468        if prefix_tokens:
    -3469            while self._match_set(prefix_tokens):
    -3470                prefix += self._prev.text
    -3471
    -3472        if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS):
    -3473            quoted = self._prev.token_type == TokenType.STRING
    -3474            return exp.Identifier(this=prefix + self._prev.text, quoted=quoted)
    -3475
    -3476        return None
    -3477
    -3478    def _parse_string(self) -> t.Optional[exp.Expression]:
    -3479        if self._match(TokenType.STRING):
    -3480            return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev)
    -3481        return self._parse_placeholder()
    -3482
    -3483    def _parse_number(self) -> t.Optional[exp.Expression]:
    -3484        if self._match(TokenType.NUMBER):
    -3485            return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev)
    -3486        return self._parse_placeholder()
    -3487
    -3488    def _parse_identifier(self) -> t.Optional[exp.Expression]:
    -3489        if self._match(TokenType.IDENTIFIER):
    -3490            return self.expression(exp.Identifier, this=self._prev.text, quoted=True)
    -3491        return self._parse_placeholder()
    -3492
    -3493    def _parse_var(self, any_token: bool = False) -> t.Optional[exp.Expression]:
    -3494        if (any_token and self._advance_any()) or self._match(TokenType.VAR):
    -3495            return self.expression(exp.Var, this=self._prev.text)
    -3496        return self._parse_placeholder()
    -3497
    -3498    def _advance_any(self) -> t.Optional[Token]:
    -3499        if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS:
    -3500            self._advance()
    -3501            return self._prev
    -3502        return None
    -3503
    -3504    def _parse_var_or_string(self) -> t.Optional[exp.Expression]:
    -3505        return self._parse_var() or self._parse_string()
    +3468        if self._match(TokenType.L_PAREN):
    +3469            aliases = self.expression(
    +3470                exp.Aliases,
    +3471                this=this,
    +3472                expressions=self._parse_csv(lambda: self._parse_id_var(any_token)),
    +3473            )
    +3474            self._match_r_paren(aliases)
    +3475            return aliases
    +3476
    +3477        alias = self._parse_id_var(any_token)
    +3478
    +3479        if alias:
    +3480            return self.expression(exp.Alias, this=this, alias=alias)
    +3481
    +3482        return this
    +3483
    +3484    def _parse_id_var(
    +3485        self,
    +3486        any_token: bool = True,
    +3487        tokens: t.Optional[t.Collection[TokenType]] = None,
    +3488        prefix_tokens: t.Optional[t.Collection[TokenType]] = None,
    +3489    ) -> t.Optional[exp.Expression]:
    +3490        identifier = self._parse_identifier()
    +3491
    +3492        if identifier:
    +3493            return identifier
    +3494
    +3495        prefix = ""
    +3496
    +3497        if prefix_tokens:
    +3498            while self._match_set(prefix_tokens):
    +3499                prefix += self._prev.text
    +3500
    +3501        if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS):
    +3502            quoted = self._prev.token_type == TokenType.STRING
    +3503            return exp.Identifier(this=prefix + self._prev.text, quoted=quoted)
    +3504
    +3505        return None
     3506
    -3507    def _parse_null(self) -> t.Optional[exp.Expression]:
    -3508        if self._match(TokenType.NULL):
    -3509            return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev)
    -3510        return None
    +3507    def _parse_string(self) -> t.Optional[exp.Expression]:
    +3508        if self._match(TokenType.STRING):
    +3509            return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev)
    +3510        return self._parse_placeholder()
     3511
    -3512    def _parse_boolean(self) -> t.Optional[exp.Expression]:
    -3513        if self._match(TokenType.TRUE):
    -3514            return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev)
    -3515        if self._match(TokenType.FALSE):
    -3516            return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev)
    -3517        return None
    -3518
    -3519    def _parse_star(self) -> t.Optional[exp.Expression]:
    -3520        if self._match(TokenType.STAR):
    -3521            return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev)
    -3522        return None
    -3523
    -3524    def _parse_parameter(self) -> exp.Expression:
    -3525        wrapped = self._match(TokenType.L_BRACE)
    -3526        this = self._parse_var() or self._parse_primary()
    -3527        self._match(TokenType.R_BRACE)
    -3528        return self.expression(exp.Parameter, this=this, wrapped=wrapped)
    -3529
    -3530    def _parse_placeholder(self) -> t.Optional[exp.Expression]:
    -3531        if self._match_set(self.PLACEHOLDER_PARSERS):
    -3532            placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self)
    -3533            if placeholder:
    -3534                return placeholder
    -3535            self._advance(-1)
    -3536        return None
    -3537
    -3538    def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    -3539        if not self._match(TokenType.EXCEPT):
    -3540            return None
    -3541        if self._match(TokenType.L_PAREN, advance=False):
    -3542            return self._parse_wrapped_csv(self._parse_column)
    -3543        return self._parse_csv(self._parse_column)
    -3544
    -3545    def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    -3546        if not self._match(TokenType.REPLACE):
    -3547            return None
    -3548        if self._match(TokenType.L_PAREN, advance=False):
    -3549            return self._parse_wrapped_csv(self._parse_expression)
    -3550        return self._parse_csv(self._parse_expression)
    -3551
    -3552    def _parse_csv(
    -3553        self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA
    -3554    ) -> t.List[t.Optional[exp.Expression]]:
    -3555        parse_result = parse_method()
    -3556        items = [parse_result] if parse_result is not None else []
    -3557
    -3558        while self._match(sep):
    -3559            if parse_result and self._prev_comments:
    -3560                parse_result.comments = self._prev_comments
    -3561
    -3562            parse_result = parse_method()
    -3563            if parse_result is not None:
    -3564                items.append(parse_result)
    -3565
    -3566        return items
    -3567
    -3568    def _parse_tokens(
    -3569        self, parse_method: t.Callable, expressions: t.Dict
    -3570    ) -> t.Optional[exp.Expression]:
    -3571        this = parse_method()
    +3512    def _parse_number(self) -> t.Optional[exp.Expression]:
    +3513        if self._match(TokenType.NUMBER):
    +3514            return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev)
    +3515        return self._parse_placeholder()
    +3516
    +3517    def _parse_identifier(self) -> t.Optional[exp.Expression]:
    +3518        if self._match(TokenType.IDENTIFIER):
    +3519            return self.expression(exp.Identifier, this=self._prev.text, quoted=True)
    +3520        return self._parse_placeholder()
    +3521
    +3522    def _parse_var(
    +3523        self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None
    +3524    ) -> t.Optional[exp.Expression]:
    +3525        if (
    +3526            (any_token and self._advance_any())
    +3527            or self._match(TokenType.VAR)
    +3528            or (self._match_set(tokens) if tokens else False)
    +3529        ):
    +3530            return self.expression(exp.Var, this=self._prev.text)
    +3531        return self._parse_placeholder()
    +3532
    +3533    def _advance_any(self) -> t.Optional[Token]:
    +3534        if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS:
    +3535            self._advance()
    +3536            return self._prev
    +3537        return None
    +3538
    +3539    def _parse_var_or_string(self) -> t.Optional[exp.Expression]:
    +3540        return self._parse_var() or self._parse_string()
    +3541
    +3542    def _parse_null(self) -> t.Optional[exp.Expression]:
    +3543        if self._match(TokenType.NULL):
    +3544            return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev)
    +3545        return None
    +3546
    +3547    def _parse_boolean(self) -> t.Optional[exp.Expression]:
    +3548        if self._match(TokenType.TRUE):
    +3549            return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev)
    +3550        if self._match(TokenType.FALSE):
    +3551            return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev)
    +3552        return None
    +3553
    +3554    def _parse_star(self) -> t.Optional[exp.Expression]:
    +3555        if self._match(TokenType.STAR):
    +3556            return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev)
    +3557        return None
    +3558
    +3559    def _parse_parameter(self) -> exp.Expression:
    +3560        wrapped = self._match(TokenType.L_BRACE)
    +3561        this = self._parse_var() or self._parse_primary()
    +3562        self._match(TokenType.R_BRACE)
    +3563        return self.expression(exp.Parameter, this=this, wrapped=wrapped)
    +3564
    +3565    def _parse_placeholder(self) -> t.Optional[exp.Expression]:
    +3566        if self._match_set(self.PLACEHOLDER_PARSERS):
    +3567            placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self)
    +3568            if placeholder:
    +3569                return placeholder
    +3570            self._advance(-1)
    +3571        return None
     3572
    -3573        while self._match_set(expressions):
    -3574            this = self.expression(
    -3575                expressions[self._prev.token_type],
    -3576                this=this,
    -3577                comments=self._prev_comments,
    -3578                expression=parse_method(),
    -3579            )
    -3580
    -3581        return this
    -3582
    -3583    def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]:
    -3584        return self._parse_wrapped_csv(self._parse_id_var)
    -3585
    -3586    def _parse_wrapped_csv(
    -3587        self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA
    -3588    ) -> t.List[t.Optional[exp.Expression]]:
    -3589        return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep))
    -3590
    -3591    def _parse_wrapped(self, parse_method: t.Callable) -> t.Any:
    -3592        self._match_l_paren()
    -3593        parse_result = parse_method()
    -3594        self._match_r_paren()
    -3595        return parse_result
    +3573    def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    +3574        if not self._match(TokenType.EXCEPT):
    +3575            return None
    +3576        if self._match(TokenType.L_PAREN, advance=False):
    +3577            return self._parse_wrapped_csv(self._parse_column)
    +3578        return self._parse_csv(self._parse_column)
    +3579
    +3580    def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    +3581        if not self._match(TokenType.REPLACE):
    +3582            return None
    +3583        if self._match(TokenType.L_PAREN, advance=False):
    +3584            return self._parse_wrapped_csv(self._parse_expression)
    +3585        return self._parse_csv(self._parse_expression)
    +3586
    +3587    def _parse_csv(
    +3588        self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA
    +3589    ) -> t.List[t.Optional[exp.Expression]]:
    +3590        parse_result = parse_method()
    +3591        items = [parse_result] if parse_result is not None else []
    +3592
    +3593        while self._match(sep):
    +3594            if parse_result and self._prev_comments:
    +3595                parse_result.comments = self._prev_comments
     3596
    -3597    def _parse_select_or_expression(self) -> t.Optional[exp.Expression]:
    -3598        return self._parse_select() or self._parse_expression()
    -3599
    -3600    def _parse_ddl_select(self) -> t.Optional[exp.Expression]:
    -3601        return self._parse_set_operations(
    -3602            self._parse_select(nested=True, parse_subquery_alias=False)
    -3603        )
    -3604
    -3605    def _parse_transaction(self) -> exp.Expression:
    -3606        this = None
    -3607        if self._match_texts(self.TRANSACTION_KIND):
    -3608            this = self._prev.text
    -3609
    -3610        self._match_texts({"TRANSACTION", "WORK"})
    -3611
    -3612        modes = []
    -3613        while True:
    -3614            mode = []
    -3615            while self._match(TokenType.VAR):
    -3616                mode.append(self._prev.text)
    +3597            parse_result = parse_method()
    +3598            if parse_result is not None:
    +3599                items.append(parse_result)
    +3600
    +3601        return items
    +3602
    +3603    def _parse_tokens(
    +3604        self, parse_method: t.Callable, expressions: t.Dict
    +3605    ) -> t.Optional[exp.Expression]:
    +3606        this = parse_method()
    +3607
    +3608        while self._match_set(expressions):
    +3609            this = self.expression(
    +3610                expressions[self._prev.token_type],
    +3611                this=this,
    +3612                comments=self._prev_comments,
    +3613                expression=parse_method(),
    +3614            )
    +3615
    +3616        return this
     3617
    -3618            if mode:
    -3619                modes.append(" ".join(mode))
    -3620            if not self._match(TokenType.COMMA):
    -3621                break
    -3622
    -3623        return self.expression(exp.Transaction, this=this, modes=modes)
    -3624
    -3625    def _parse_commit_or_rollback(self) -> exp.Expression:
    -3626        chain = None
    -3627        savepoint = None
    -3628        is_rollback = self._prev.token_type == TokenType.ROLLBACK
    -3629
    -3630        self._match_texts({"TRANSACTION", "WORK"})
    +3618    def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]:
    +3619        return self._parse_wrapped_csv(self._parse_id_var)
    +3620
    +3621    def _parse_wrapped_csv(
    +3622        self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA
    +3623    ) -> t.List[t.Optional[exp.Expression]]:
    +3624        return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep))
    +3625
    +3626    def _parse_wrapped(self, parse_method: t.Callable) -> t.Any:
    +3627        self._match_l_paren()
    +3628        parse_result = parse_method()
    +3629        self._match_r_paren()
    +3630        return parse_result
     3631
    -3632        if self._match_text_seq("TO"):
    -3633            self._match_text_seq("SAVEPOINT")
    -3634            savepoint = self._parse_id_var()
    -3635
    -3636        if self._match(TokenType.AND):
    -3637            chain = not self._match_text_seq("NO")
    -3638            self._match_text_seq("CHAIN")
    +3632    def _parse_select_or_expression(self) -> t.Optional[exp.Expression]:
    +3633        return self._parse_select() or self._parse_expression()
    +3634
    +3635    def _parse_ddl_select(self) -> t.Optional[exp.Expression]:
    +3636        return self._parse_set_operations(
    +3637            self._parse_select(nested=True, parse_subquery_alias=False)
    +3638        )
     3639
    -3640        if is_rollback:
    -3641            return self.expression(exp.Rollback, savepoint=savepoint)
    -3642        return self.expression(exp.Commit, chain=chain)
    -3643
    -3644    def _parse_add_column(self) -> t.Optional[exp.Expression]:
    -3645        if not self._match_text_seq("ADD"):
    -3646            return None
    -3647
    -3648        self._match(TokenType.COLUMN)
    -3649        exists_column = self._parse_exists(not_=True)
    -3650        expression = self._parse_column_def(self._parse_field(any_token=True))
    -3651
    -3652        if expression:
    -3653            expression.set("exists", exists_column)
    -3654
    -3655        return expression
    -3656
    -3657    def _parse_drop_column(self) -> t.Optional[exp.Expression]:
    -3658        return self._match(TokenType.DROP) and self._parse_drop(default_kind="COLUMN")
    +3640    def _parse_transaction(self) -> exp.Expression:
    +3641        this = None
    +3642        if self._match_texts(self.TRANSACTION_KIND):
    +3643            this = self._prev.text
    +3644
    +3645        self._match_texts({"TRANSACTION", "WORK"})
    +3646
    +3647        modes = []
    +3648        while True:
    +3649            mode = []
    +3650            while self._match(TokenType.VAR):
    +3651                mode.append(self._prev.text)
    +3652
    +3653            if mode:
    +3654                modes.append(" ".join(mode))
    +3655            if not self._match(TokenType.COMMA):
    +3656                break
    +3657
    +3658        return self.expression(exp.Transaction, this=this, modes=modes)
     3659
    -3660    # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html
    -3661    def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression:
    -3662        return self.expression(
    -3663            exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists
    -3664        )
    -3665
    -3666    def _parse_add_constraint(self) -> t.Optional[exp.Expression]:
    -3667        this = None
    -3668        kind = self._prev.token_type
    -3669
    -3670        if kind == TokenType.CONSTRAINT:
    -3671            this = self._parse_id_var()
    -3672
    -3673            if self._match_text_seq("CHECK"):
    -3674                expression = self._parse_wrapped(self._parse_conjunction)
    -3675                enforced = self._match_text_seq("ENFORCED")
    -3676
    -3677                return self.expression(
    -3678                    exp.AddConstraint, this=this, expression=expression, enforced=enforced
    -3679                )
    -3680
    -3681        if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY):
    -3682            expression = self._parse_foreign_key()
    -3683        elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY):
    -3684            expression = self._parse_primary_key()
    -3685
    -3686        return self.expression(exp.AddConstraint, this=this, expression=expression)
    -3687
    -3688    def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]:
    -3689        index = self._index - 1
    -3690
    -3691        if self._match_set(self.ADD_CONSTRAINT_TOKENS):
    -3692            return self._parse_csv(self._parse_add_constraint)
    -3693
    -3694        self._retreat(index)
    -3695        return self._parse_csv(self._parse_add_column)
    -3696
    -3697    def _parse_alter_table_alter(self) -> exp.Expression:
    -3698        self._match(TokenType.COLUMN)
    -3699        column = self._parse_field(any_token=True)
    +3660    def _parse_commit_or_rollback(self) -> exp.Expression:
    +3661        chain = None
    +3662        savepoint = None
    +3663        is_rollback = self._prev.token_type == TokenType.ROLLBACK
    +3664
    +3665        self._match_texts({"TRANSACTION", "WORK"})
    +3666
    +3667        if self._match_text_seq("TO"):
    +3668            self._match_text_seq("SAVEPOINT")
    +3669            savepoint = self._parse_id_var()
    +3670
    +3671        if self._match(TokenType.AND):
    +3672            chain = not self._match_text_seq("NO")
    +3673            self._match_text_seq("CHAIN")
    +3674
    +3675        if is_rollback:
    +3676            return self.expression(exp.Rollback, savepoint=savepoint)
    +3677        return self.expression(exp.Commit, chain=chain)
    +3678
    +3679    def _parse_add_column(self) -> t.Optional[exp.Expression]:
    +3680        if not self._match_text_seq("ADD"):
    +3681            return None
    +3682
    +3683        self._match(TokenType.COLUMN)
    +3684        exists_column = self._parse_exists(not_=True)
    +3685        expression = self._parse_column_def(self._parse_field(any_token=True))
    +3686
    +3687        if expression:
    +3688            expression.set("exists", exists_column)
    +3689
    +3690        return expression
    +3691
    +3692    def _parse_drop_column(self) -> t.Optional[exp.Expression]:
    +3693        return self._match(TokenType.DROP) and self._parse_drop(default_kind="COLUMN")
    +3694
    +3695    # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html
    +3696    def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression:
    +3697        return self.expression(
    +3698            exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists
    +3699        )
     3700
    -3701        if self._match_pair(TokenType.DROP, TokenType.DEFAULT):
    -3702            return self.expression(exp.AlterColumn, this=column, drop=True)
    -3703        if self._match_pair(TokenType.SET, TokenType.DEFAULT):
    -3704            return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction())
    -3705
    -3706        self._match_text_seq("SET", "DATA")
    -3707        return self.expression(
    -3708            exp.AlterColumn,
    -3709            this=column,
    -3710            dtype=self._match_text_seq("TYPE") and self._parse_types(),
    -3711            collate=self._match(TokenType.COLLATE) and self._parse_term(),
    -3712            using=self._match(TokenType.USING) and self._parse_conjunction(),
    -3713        )
    -3714
    -3715    def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]:
    -3716        index = self._index - 1
    -3717
    -3718        partition_exists = self._parse_exists()
    -3719        if self._match(TokenType.PARTITION, advance=False):
    -3720            return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists))
    -3721
    -3722        self._retreat(index)
    -3723        return self._parse_csv(self._parse_drop_column)
    -3724
    -3725    def _parse_alter_table_rename(self) -> exp.Expression:
    -3726        self._match_text_seq("TO")
    -3727        return self.expression(exp.RenameTable, this=self._parse_table(schema=True))
    +3701    def _parse_add_constraint(self) -> t.Optional[exp.Expression]:
    +3702        this = None
    +3703        kind = self._prev.token_type
    +3704
    +3705        if kind == TokenType.CONSTRAINT:
    +3706            this = self._parse_id_var()
    +3707
    +3708            if self._match_text_seq("CHECK"):
    +3709                expression = self._parse_wrapped(self._parse_conjunction)
    +3710                enforced = self._match_text_seq("ENFORCED")
    +3711
    +3712                return self.expression(
    +3713                    exp.AddConstraint, this=this, expression=expression, enforced=enforced
    +3714                )
    +3715
    +3716        if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY):
    +3717            expression = self._parse_foreign_key()
    +3718        elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY):
    +3719            expression = self._parse_primary_key()
    +3720
    +3721        return self.expression(exp.AddConstraint, this=this, expression=expression)
    +3722
    +3723    def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]:
    +3724        index = self._index - 1
    +3725
    +3726        if self._match_set(self.ADD_CONSTRAINT_TOKENS):
    +3727            return self._parse_csv(self._parse_add_constraint)
     3728
    -3729    def _parse_alter(self) -> t.Optional[exp.Expression]:
    -3730        if not self._match(TokenType.TABLE):
    -3731            return self._parse_as_command(self._prev)
    -3732
    -3733        exists = self._parse_exists()
    -3734        this = self._parse_table(schema=True)
    +3729        self._retreat(index)
    +3730        return self._parse_csv(self._parse_add_column)
    +3731
    +3732    def _parse_alter_table_alter(self) -> exp.Expression:
    +3733        self._match(TokenType.COLUMN)
    +3734        column = self._parse_field(any_token=True)
     3735
    -3736        if not self._curr:
    -3737            return None
    -3738
    -3739        parser = self.ALTER_PARSERS.get(self._curr.text.upper())
    -3740        actions = ensure_list(self._advance() or parser(self)) if parser else []  # type: ignore
    -3741
    -3742        return self.expression(exp.AlterTable, this=this, exists=exists, actions=actions)
    -3743
    -3744    def _parse_show(self) -> t.Optional[exp.Expression]:
    -3745        parser = self._find_parser(self.SHOW_PARSERS, self._show_trie)  # type: ignore
    -3746        if parser:
    -3747            return parser(self)
    -3748        self._advance()
    -3749        return self.expression(exp.Show, this=self._prev.text.upper())
    -3750
    -3751    def _default_parse_set_item(self) -> exp.Expression:
    -3752        return self.expression(
    -3753            exp.SetItem,
    -3754            this=self._parse_statement(),
    -3755        )
    +3736        if self._match_pair(TokenType.DROP, TokenType.DEFAULT):
    +3737            return self.expression(exp.AlterColumn, this=column, drop=True)
    +3738        if self._match_pair(TokenType.SET, TokenType.DEFAULT):
    +3739            return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction())
    +3740
    +3741        self._match_text_seq("SET", "DATA")
    +3742        return self.expression(
    +3743            exp.AlterColumn,
    +3744            this=column,
    +3745            dtype=self._match_text_seq("TYPE") and self._parse_types(),
    +3746            collate=self._match(TokenType.COLLATE) and self._parse_term(),
    +3747            using=self._match(TokenType.USING) and self._parse_conjunction(),
    +3748        )
    +3749
    +3750    def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]:
    +3751        index = self._index - 1
    +3752
    +3753        partition_exists = self._parse_exists()
    +3754        if self._match(TokenType.PARTITION, advance=False):
    +3755            return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists))
     3756
    -3757    def _parse_set_item(self) -> t.Optional[exp.Expression]:
    -3758        parser = self._find_parser(self.SET_PARSERS, self._set_trie)  # type: ignore
    -3759        return parser(self) if parser else self._default_parse_set_item()
    -3760
    -3761    def _parse_merge(self) -> exp.Expression:
    -3762        self._match(TokenType.INTO)
    -3763        target = self._parse_table()
    -3764
    -3765        self._match(TokenType.USING)
    -3766        using = self._parse_table()
    -3767
    -3768        self._match(TokenType.ON)
    -3769        on = self._parse_conjunction()
    -3770
    -3771        whens = []
    -3772        while self._match(TokenType.WHEN):
    -3773            this = self._parse_conjunction()
    -3774            self._match(TokenType.THEN)
    -3775
    -3776            if self._match(TokenType.INSERT):
    -3777                _this = self._parse_star()
    -3778                if _this:
    -3779                    then = self.expression(exp.Insert, this=_this)
    -3780                else:
    -3781                    then = self.expression(
    -3782                        exp.Insert,
    -3783                        this=self._parse_value(),
    -3784                        expression=self._match(TokenType.VALUES) and self._parse_value(),
    -3785                    )
    -3786            elif self._match(TokenType.UPDATE):
    -3787                expressions = self._parse_star()
    -3788                if expressions:
    -3789                    then = self.expression(exp.Update, expressions=expressions)
    -3790                else:
    -3791                    then = self.expression(
    -3792                        exp.Update,
    -3793                        expressions=self._match(TokenType.SET)
    -3794                        and self._parse_csv(self._parse_equality),
    -3795                    )
    -3796            elif self._match(TokenType.DELETE):
    -3797                then = self.expression(exp.Var, this=self._prev.text)
    +3757        self._retreat(index)
    +3758        return self._parse_csv(self._parse_drop_column)
    +3759
    +3760    def _parse_alter_table_rename(self) -> exp.Expression:
    +3761        self._match_text_seq("TO")
    +3762        return self.expression(exp.RenameTable, this=self._parse_table(schema=True))
    +3763
    +3764    def _parse_alter(self) -> t.Optional[exp.Expression]:
    +3765        start = self._prev
    +3766
    +3767        if not self._match(TokenType.TABLE):
    +3768            return self._parse_as_command(start)
    +3769
    +3770        exists = self._parse_exists()
    +3771        this = self._parse_table(schema=True)
    +3772
    +3773        if self._next:
    +3774            self._advance()
    +3775        parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None
    +3776
    +3777        if parser:
    +3778            return self.expression(
    +3779                exp.AlterTable,
    +3780                this=this,
    +3781                exists=exists,
    +3782                actions=ensure_list(parser(self)),
    +3783            )
    +3784        return self._parse_as_command(start)
    +3785
    +3786    def _parse_show(self) -> t.Optional[exp.Expression]:
    +3787        parser = self._find_parser(self.SHOW_PARSERS, self._show_trie)  # type: ignore
    +3788        if parser:
    +3789            return parser(self)
    +3790        self._advance()
    +3791        return self.expression(exp.Show, this=self._prev.text.upper())
    +3792
    +3793    def _default_parse_set_item(self) -> exp.Expression:
    +3794        return self.expression(
    +3795            exp.SetItem,
    +3796            this=self._parse_statement(),
    +3797        )
     3798
    -3799            whens.append(self.expression(exp.When, this=this, then=then))
    -3800
    -3801        return self.expression(
    -3802            exp.Merge,
    -3803            this=target,
    -3804            using=using,
    -3805            on=on,
    -3806            expressions=whens,
    -3807        )
    -3808
    -3809    def _parse_set(self) -> exp.Expression:
    -3810        return self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item))
    -3811
    -3812    def _parse_as_command(self, start: Token) -> exp.Command:
    -3813        while self._curr:
    -3814            self._advance()
    -3815        text = self._find_sql(start, self._prev)
    -3816        size = len(start.text)
    -3817        return exp.Command(this=text[:size], expression=text[size:])
    -3818
    -3819    def _find_parser(
    -3820        self, parsers: t.Dict[str, t.Callable], trie: t.Dict
    -3821    ) -> t.Optional[t.Callable]:
    -3822        index = self._index
    -3823        this = []
    -3824        while True:
    -3825            # The current token might be multiple words
    -3826            curr = self._curr.text.upper()
    -3827            key = curr.split(" ")
    -3828            this.append(curr)
    -3829            self._advance()
    -3830            result, trie = in_trie(trie, key)
    -3831            if result == 0:
    -3832                break
    -3833            if result == 2:
    -3834                subparser = parsers[" ".join(this)]
    -3835                return subparser
    -3836        self._retreat(index)
    -3837        return None
    -3838
    -3839    def _match(self, token_type, advance=True):
    -3840        if not self._curr:
    -3841            return None
    -3842
    -3843        if self._curr.token_type == token_type:
    -3844            if advance:
    -3845                self._advance()
    -3846            return True
    -3847
    -3848        return None
    -3849
    -3850    def _match_set(self, types, advance=True):
    -3851        if not self._curr:
    -3852            return None
    -3853
    -3854        if self._curr.token_type in types:
    -3855            if advance:
    -3856                self._advance()
    -3857            return True
    -3858
    -3859        return None
    +3799    def _parse_set_item(self) -> t.Optional[exp.Expression]:
    +3800        parser = self._find_parser(self.SET_PARSERS, self._set_trie)  # type: ignore
    +3801        return parser(self) if parser else self._default_parse_set_item()
    +3802
    +3803    def _parse_merge(self) -> exp.Expression:
    +3804        self._match(TokenType.INTO)
    +3805        target = self._parse_table()
    +3806
    +3807        self._match(TokenType.USING)
    +3808        using = self._parse_table()
    +3809
    +3810        self._match(TokenType.ON)
    +3811        on = self._parse_conjunction()
    +3812
    +3813        whens = []
    +3814        while self._match(TokenType.WHEN):
    +3815            matched = not self._match(TokenType.NOT)
    +3816            self._match_text_seq("MATCHED")
    +3817            source = (
    +3818                False
    +3819                if self._match_text_seq("BY", "TARGET")
    +3820                else self._match_text_seq("BY", "SOURCE")
    +3821            )
    +3822            condition = self._parse_conjunction() if self._match(TokenType.AND) else None
    +3823
    +3824            self._match(TokenType.THEN)
    +3825
    +3826            if self._match(TokenType.INSERT):
    +3827                _this = self._parse_star()
    +3828                if _this:
    +3829                    then = self.expression(exp.Insert, this=_this)
    +3830                else:
    +3831                    then = self.expression(
    +3832                        exp.Insert,
    +3833                        this=self._parse_value(),
    +3834                        expression=self._match(TokenType.VALUES) and self._parse_value(),
    +3835                    )
    +3836            elif self._match(TokenType.UPDATE):
    +3837                expressions = self._parse_star()
    +3838                if expressions:
    +3839                    then = self.expression(exp.Update, expressions=expressions)
    +3840                else:
    +3841                    then = self.expression(
    +3842                        exp.Update,
    +3843                        expressions=self._match(TokenType.SET)
    +3844                        and self._parse_csv(self._parse_equality),
    +3845                    )
    +3846            elif self._match(TokenType.DELETE):
    +3847                then = self.expression(exp.Var, this=self._prev.text)
    +3848            else:
    +3849                then = None
    +3850
    +3851            whens.append(
    +3852                self.expression(
    +3853                    exp.When,
    +3854                    matched=matched,
    +3855                    source=source,
    +3856                    condition=condition,
    +3857                    then=then,
    +3858                )
    +3859            )
     3860
    -3861    def _match_pair(self, token_type_a, token_type_b, advance=True):
    -3862        if not self._curr or not self._next:
    -3863            return None
    -3864
    -3865        if self._curr.token_type == token_type_a and self._next.token_type == token_type_b:
    -3866            if advance:
    -3867                self._advance(2)
    -3868            return True
    -3869
    -3870        return None
    +3861        return self.expression(
    +3862            exp.Merge,
    +3863            this=target,
    +3864            using=using,
    +3865            on=on,
    +3866            expressions=whens,
    +3867        )
    +3868
    +3869    def _parse_set(self) -> exp.Expression:
    +3870        return self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item))
     3871
    -3872    def _match_l_paren(self, expression=None):
    -3873        if not self._match(TokenType.L_PAREN):
    -3874            self.raise_error("Expecting (")
    -3875        if expression and self._prev_comments:
    -3876            expression.comments = self._prev_comments
    -3877
    -3878    def _match_r_paren(self, expression=None):
    -3879        if not self._match(TokenType.R_PAREN):
    -3880            self.raise_error("Expecting )")
    -3881        if expression and self._prev_comments:
    -3882            expression.comments = self._prev_comments
    -3883
    -3884    def _match_texts(self, texts, advance=True):
    -3885        if self._curr and self._curr.text.upper() in texts:
    -3886            if advance:
    -3887                self._advance()
    -3888            return True
    -3889        return False
    -3890
    -3891    def _match_text_seq(self, *texts, advance=True):
    -3892        index = self._index
    -3893        for text in texts:
    -3894            if self._curr and self._curr.text.upper() == text:
    -3895                self._advance()
    -3896            else:
    -3897                self._retreat(index)
    -3898                return False
    -3899
    -3900        if not advance:
    -3901            self._retreat(index)
    +3872    def _parse_as_command(self, start: Token) -> exp.Command:
    +3873        while self._curr:
    +3874            self._advance()
    +3875        text = self._find_sql(start, self._prev)
    +3876        size = len(start.text)
    +3877        return exp.Command(this=text[:size], expression=text[size:])
    +3878
    +3879    def _find_parser(
    +3880        self, parsers: t.Dict[str, t.Callable], trie: t.Dict
    +3881    ) -> t.Optional[t.Callable]:
    +3882        index = self._index
    +3883        this = []
    +3884        while True:
    +3885            # The current token might be multiple words
    +3886            curr = self._curr.text.upper()
    +3887            key = curr.split(" ")
    +3888            this.append(curr)
    +3889            self._advance()
    +3890            result, trie = in_trie(trie, key)
    +3891            if result == 0:
    +3892                break
    +3893            if result == 2:
    +3894                subparser = parsers[" ".join(this)]
    +3895                return subparser
    +3896        self._retreat(index)
    +3897        return None
    +3898
    +3899    def _match(self, token_type, advance=True):
    +3900        if not self._curr:
    +3901            return None
     3902
    -3903        return True
    -3904
    -3905    def _replace_columns_with_dots(self, this):
    -3906        if isinstance(this, exp.Dot):
    -3907            exp.replace_children(this, self._replace_columns_with_dots)
    -3908        elif isinstance(this, exp.Column):
    -3909            exp.replace_children(this, self._replace_columns_with_dots)
    -3910            table = this.args.get("table")
    -3911            this = (
    -3912                self.expression(exp.Dot, this=table, expression=this.this)
    -3913                if table
    -3914                else self.expression(exp.Var, this=this.name)
    -3915            )
    -3916        elif isinstance(this, exp.Identifier):
    -3917            this = self.expression(exp.Var, this=this.name)
    -3918        return this
    -3919
    -3920    def _replace_lambda(self, node, lambda_variables):
    -3921        if isinstance(node, exp.Column):
    -3922            if node.name in lambda_variables:
    -3923                return node.this
    -3924        return node
    +3903        if self._curr.token_type == token_type:
    +3904            if advance:
    +3905                self._advance()
    +3906            return True
    +3907
    +3908        return None
    +3909
    +3910    def _match_set(self, types, advance=True):
    +3911        if not self._curr:
    +3912            return None
    +3913
    +3914        if self._curr.token_type in types:
    +3915            if advance:
    +3916                self._advance()
    +3917            return True
    +3918
    +3919        return None
    +3920
    +3921    def _match_pair(self, token_type_a, token_type_b, advance=True):
    +3922        if not self._curr or not self._next:
    +3923            return None
    +3924
    +3925        if self._curr.token_type == token_type_a and self._next.token_type == token_type_b:
    +3926            if advance:
    +3927                self._advance(2)
    +3928            return True
    +3929
    +3930        return None
    +3931
    +3932    def _match_l_paren(self, expression=None):
    +3933        if not self._match(TokenType.L_PAREN):
    +3934            self.raise_error("Expecting (")
    +3935        if expression and self._prev_comments:
    +3936            expression.comments = self._prev_comments
    +3937
    +3938    def _match_r_paren(self, expression=None):
    +3939        if not self._match(TokenType.R_PAREN):
    +3940            self.raise_error("Expecting )")
    +3941        if expression and self._prev_comments:
    +3942            expression.comments = self._prev_comments
    +3943
    +3944    def _match_texts(self, texts, advance=True):
    +3945        if self._curr and self._curr.text.upper() in texts:
    +3946            if advance:
    +3947                self._advance()
    +3948            return True
    +3949        return False
    +3950
    +3951    def _match_text_seq(self, *texts, advance=True):
    +3952        index = self._index
    +3953        for text in texts:
    +3954            if self._curr and self._curr.text.upper() == text:
    +3955                self._advance()
    +3956            else:
    +3957                self._retreat(index)
    +3958                return False
    +3959
    +3960        if not advance:
    +3961            self._retreat(index)
    +3962
    +3963        return True
    +3964
    +3965    def _replace_columns_with_dots(self, this):
    +3966        if isinstance(this, exp.Dot):
    +3967            exp.replace_children(this, self._replace_columns_with_dots)
    +3968        elif isinstance(this, exp.Column):
    +3969            exp.replace_children(this, self._replace_columns_with_dots)
    +3970            table = this.args.get("table")
    +3971            this = (
    +3972                self.expression(exp.Dot, this=table, expression=this.this)
    +3973                if table
    +3974                else self.expression(exp.Var, this=this.name)
    +3975            )
    +3976        elif isinstance(this, exp.Identifier):
    +3977            this = self.expression(exp.Var, this=this.name)
    +3978        return this
    +3979
    +3980    def _replace_lambda(self, node, lambda_variables):
    +3981        if isinstance(node, exp.Column):
    +3982            if node.name in lambda_variables:
    +3983                return node.this
    +3984        return node
     
    @@ -7971,24 +8087,24 @@ Default: "nulls_are_small"
    -
    725    def __init__(
    -726        self,
    -727        error_level: t.Optional[ErrorLevel] = None,
    -728        error_message_context: int = 100,
    -729        index_offset: int = 0,
    -730        unnest_column_only: bool = False,
    -731        alias_post_tablesample: bool = False,
    -732        max_errors: int = 3,
    -733        null_ordering: t.Optional[str] = None,
    -734    ):
    -735        self.error_level = error_level or ErrorLevel.IMMEDIATE
    -736        self.error_message_context = error_message_context
    -737        self.index_offset = index_offset
    -738        self.unnest_column_only = unnest_column_only
    -739        self.alias_post_tablesample = alias_post_tablesample
    -740        self.max_errors = max_errors
    -741        self.null_ordering = null_ordering
    -742        self.reset()
    +            
    733    def __init__(
    +734        self,
    +735        error_level: t.Optional[ErrorLevel] = None,
    +736        error_message_context: int = 100,
    +737        index_offset: int = 0,
    +738        unnest_column_only: bool = False,
    +739        alias_post_tablesample: bool = False,
    +740        max_errors: int = 3,
    +741        null_ordering: t.Optional[str] = None,
    +742    ):
    +743        self.error_level = error_level or ErrorLevel.IMMEDIATE
    +744        self.error_message_context = error_message_context
    +745        self.index_offset = index_offset
    +746        self.unnest_column_only = unnest_column_only
    +747        self.alias_post_tablesample = alias_post_tablesample
    +748        self.max_errors = max_errors
    +749        self.null_ordering = null_ordering
    +750        self.reset()
     
    @@ -8006,15 +8122,15 @@ Default: "nulls_are_small"
    -
    744    def reset(self):
    -745        self.sql = ""
    -746        self.errors = []
    -747        self._tokens = []
    -748        self._index = 0
    -749        self._curr = None
    -750        self._next = None
    -751        self._prev = None
    -752        self._prev_comments = None
    +            
    752    def reset(self):
    +753        self.sql = ""
    +754        self.errors = []
    +755        self._tokens = []
    +756        self._index = 0
    +757        self._curr = None
    +758        self._next = None
    +759        self._prev = None
    +760        self._prev_comments = None
     
    @@ -8032,23 +8148,23 @@ Default: "nulls_are_small"
    -
    754    def parse(
    -755        self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
    -756    ) -> t.List[t.Optional[exp.Expression]]:
    -757        """
    -758        Parses a list of tokens and returns a list of syntax trees, one tree
    -759        per parsed SQL statement.
    -760
    -761        Args:
    -762            raw_tokens: the list of tokens.
    -763            sql: the original SQL string, used to produce helpful debug messages.
    -764
    -765        Returns:
    -766            The list of syntax trees.
    -767        """
    -768        return self._parse(
    -769            parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql
    -770        )
    +            
    762    def parse(
    +763        self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
    +764    ) -> t.List[t.Optional[exp.Expression]]:
    +765        """
    +766        Parses a list of tokens and returns a list of syntax trees, one tree
    +767        per parsed SQL statement.
    +768
    +769        Args:
    +770            raw_tokens: the list of tokens.
    +771            sql: the original SQL string, used to produce helpful debug messages.
    +772
    +773        Returns:
    +774            The list of syntax trees.
    +775        """
    +776        return self._parse(
    +777            parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql
    +778        )
     
    @@ -8082,39 +8198,39 @@ per parsed SQL statement.

    -
    772    def parse_into(
    -773        self,
    -774        expression_types: exp.IntoType,
    -775        raw_tokens: t.List[Token],
    -776        sql: t.Optional[str] = None,
    -777    ) -> t.List[t.Optional[exp.Expression]]:
    -778        """
    -779        Parses a list of tokens into a given Expression type. If a collection of Expression
    -780        types is given instead, this method will try to parse the token list into each one
    -781        of them, stopping at the first for which the parsing succeeds.
    -782
    -783        Args:
    -784            expression_types: the expression type(s) to try and parse the token list into.
    -785            raw_tokens: the list of tokens.
    -786            sql: the original SQL string, used to produce helpful debug messages.
    -787
    -788        Returns:
    -789            The target Expression.
    -790        """
    -791        errors = []
    -792        for expression_type in ensure_collection(expression_types):
    -793            parser = self.EXPRESSION_PARSERS.get(expression_type)
    -794            if not parser:
    -795                raise TypeError(f"No parser registered for {expression_type}")
    -796            try:
    -797                return self._parse(parser, raw_tokens, sql)
    -798            except ParseError as e:
    -799                e.errors[0]["into_expression"] = expression_type
    -800                errors.append(e)
    -801        raise ParseError(
    -802            f"Failed to parse into {expression_types}",
    -803            errors=merge_errors(errors),
    -804        ) from errors[-1]
    +            
    780    def parse_into(
    +781        self,
    +782        expression_types: exp.IntoType,
    +783        raw_tokens: t.List[Token],
    +784        sql: t.Optional[str] = None,
    +785    ) -> t.List[t.Optional[exp.Expression]]:
    +786        """
    +787        Parses a list of tokens into a given Expression type. If a collection of Expression
    +788        types is given instead, this method will try to parse the token list into each one
    +789        of them, stopping at the first for which the parsing succeeds.
    +790
    +791        Args:
    +792            expression_types: the expression type(s) to try and parse the token list into.
    +793            raw_tokens: the list of tokens.
    +794            sql: the original SQL string, used to produce helpful debug messages.
    +795
    +796        Returns:
    +797            The target Expression.
    +798        """
    +799        errors = []
    +800        for expression_type in ensure_collection(expression_types):
    +801            parser = self.EXPRESSION_PARSERS.get(expression_type)
    +802            if not parser:
    +803                raise TypeError(f"No parser registered for {expression_type}")
    +804            try:
    +805                return self._parse(parser, raw_tokens, sql)
    +806            except ParseError as e:
    +807                e.errors[0]["into_expression"] = expression_type
    +808                errors.append(e)
    +809        raise ParseError(
    +810            f"Failed to parse into {expression_types}",
    +811            errors=merge_errors(errors),
    +812        ) from errors[-1]
     
    @@ -8150,18 +8266,18 @@ of them, stopping at the first for which the parsing succeeds.

    -
    840    def check_errors(self) -> None:
    -841        """
    -842        Logs or raises any found errors, depending on the chosen error level setting.
    -843        """
    -844        if self.error_level == ErrorLevel.WARN:
    -845            for error in self.errors:
    -846                logger.error(str(error))
    -847        elif self.error_level == ErrorLevel.RAISE and self.errors:
    -848            raise ParseError(
    -849                concat_messages(self.errors, self.max_errors),
    -850                errors=merge_errors(self.errors),
    -851            )
    +            
    848    def check_errors(self) -> None:
    +849        """
    +850        Logs or raises any found errors, depending on the chosen error level setting.
    +851        """
    +852        if self.error_level == ErrorLevel.WARN:
    +853            for error in self.errors:
    +854                logger.error(str(error))
    +855        elif self.error_level == ErrorLevel.RAISE and self.errors:
    +856            raise ParseError(
    +857                concat_messages(self.errors, self.max_errors),
    +858                errors=merge_errors(self.errors),
    +859            )
     
    @@ -8181,33 +8297,33 @@ of them, stopping at the first for which the parsing succeeds.

    -
    853    def raise_error(self, message: str, token: t.Optional[Token] = None) -> None:
    -854        """
    -855        Appends an error in the list of recorded errors or raises it, depending on the chosen
    -856        error level setting.
    -857        """
    -858        token = token or self._curr or self._prev or Token.string("")
    -859        start = self._find_token(token)
    -860        end = start + len(token.text)
    -861        start_context = self.sql[max(start - self.error_message_context, 0) : start]
    -862        highlight = self.sql[start:end]
    -863        end_context = self.sql[end : end + self.error_message_context]
    -864
    -865        error = ParseError.new(
    -866            f"{message}. Line {token.line}, Col: {token.col}.\n"
    -867            f"  {start_context}\033[4m{highlight}\033[0m{end_context}",
    -868            description=message,
    -869            line=token.line,
    -870            col=token.col,
    -871            start_context=start_context,
    -872            highlight=highlight,
    -873            end_context=end_context,
    -874        )
    -875
    -876        if self.error_level == ErrorLevel.IMMEDIATE:
    -877            raise error
    -878
    -879        self.errors.append(error)
    +            
    861    def raise_error(self, message: str, token: t.Optional[Token] = None) -> None:
    +862        """
    +863        Appends an error in the list of recorded errors or raises it, depending on the chosen
    +864        error level setting.
    +865        """
    +866        token = token or self._curr or self._prev or Token.string("")
    +867        start = self._find_token(token)
    +868        end = start + len(token.text)
    +869        start_context = self.sql[max(start - self.error_message_context, 0) : start]
    +870        highlight = self.sql[start:end]
    +871        end_context = self.sql[end : end + self.error_message_context]
    +872
    +873        error = ParseError.new(
    +874            f"{message}. Line {token.line}, Col: {token.col}.\n"
    +875            f"  {start_context}\033[4m{highlight}\033[0m{end_context}",
    +876            description=message,
    +877            line=token.line,
    +878            col=token.col,
    +879            start_context=start_context,
    +880            highlight=highlight,
    +881            end_context=end_context,
    +882        )
    +883
    +884        if self.error_level == ErrorLevel.IMMEDIATE:
    +885            raise error
    +886
    +887        self.errors.append(error)
     
    @@ -8228,28 +8344,28 @@ error level setting.

    -
    881    def expression(
    -882        self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs
    -883    ) -> exp.Expression:
    -884        """
    -885        Creates a new, validated Expression.
    -886
    -887        Args:
    -888            exp_class: the expression class to instantiate.
    -889            comments: an optional list of comments to attach to the expression.
    -890            kwargs: the arguments to set for the expression along with their respective values.
    -891
    -892        Returns:
    -893            The target expression.
    -894        """
    -895        instance = exp_class(**kwargs)
    -896        if self._prev_comments:
    -897            instance.comments = self._prev_comments
    -898            self._prev_comments = None
    -899        if comments:
    -900            instance.comments = comments
    -901        self.validate_expression(instance)
    -902        return instance
    +            
    889    def expression(
    +890        self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs
    +891    ) -> exp.Expression:
    +892        """
    +893        Creates a new, validated Expression.
    +894
    +895        Args:
    +896            exp_class: the expression class to instantiate.
    +897            comments: an optional list of comments to attach to the expression.
    +898            kwargs: the arguments to set for the expression along with their respective values.
    +899
    +900        Returns:
    +901            The target expression.
    +902        """
    +903        instance = exp_class(**kwargs)
    +904        if self._prev_comments:
    +905            instance.comments = self._prev_comments
    +906            self._prev_comments = None
    +907        if comments:
    +908            instance.comments = comments
    +909        self.validate_expression(instance)
    +910        return instance
     
    @@ -8283,22 +8399,22 @@ error level setting.

    -
    904    def validate_expression(
    -905        self, expression: exp.Expression, args: t.Optional[t.List] = None
    -906    ) -> None:
    -907        """
    -908        Validates an already instantiated expression, making sure that all its mandatory arguments
    -909        are set.
    -910
    -911        Args:
    -912            expression: the expression to validate.
    -913            args: an optional list of items that was used to instantiate the expression, if it's a Func.
    -914        """
    -915        if self.error_level == ErrorLevel.IGNORE:
    -916            return
    -917
    -918        for error_message in expression.error_messages(args):
    -919            self.raise_error(error_message)
    +            
    912    def validate_expression(
    +913        self, expression: exp.Expression, args: t.Optional[t.List] = None
    +914    ) -> None:
    +915        """
    +916        Validates an already instantiated expression, making sure that all its mandatory arguments
    +917        are set.
    +918
    +919        Args:
    +920            expression: the expression to validate.
    +921            args: an optional list of items that was used to instantiate the expression, if it's a Func.
    +922        """
    +923        if self.error_level == ErrorLevel.IGNORE:
    +924            return
    +925
    +926        for error_message in expression.error_messages(args):
    +927            self.raise_error(error_message)
     
    diff --git a/sqlglot/__init__.py b/sqlglot/__init__.py index d026627..a9a220c 100644 --- a/sqlglot/__init__.py +++ b/sqlglot/__init__.py @@ -47,7 +47,7 @@ if t.TYPE_CHECKING: T = t.TypeVar("T", bound=Expression) -__version__ = "11.3.0" +__version__ = "11.3.3" pretty = False """Whether to format generated SQL by default.""" diff --git a/sqlglot/dialects/bigquery.py b/sqlglot/dialects/bigquery.py index a3869c6..ccdd1c9 100644 --- a/sqlglot/dialects/bigquery.py +++ b/sqlglot/dialects/bigquery.py @@ -10,6 +10,7 @@ from sqlglot.dialects.dialect import ( Dialect, datestrtodate_sql, inline_array_sql, + min_or_least, no_ilike_sql, rename_func, timestrtotime_sql, @@ -232,6 +233,7 @@ class BigQuery(Dialect): exp.GroupConcat: rename_func("STRING_AGG"), exp.ILike: no_ilike_sql, exp.IntDiv: rename_func("DIV"), + exp.Min: min_or_least, exp.Select: transforms.preprocess( [_unqualify_unnest], transforms.delegate("select_sql") ), diff --git a/sqlglot/dialects/dialect.py b/sqlglot/dialects/dialect.py index 6939705..25490cb 100644 --- a/sqlglot/dialects/dialect.py +++ b/sqlglot/dialects/dialect.py @@ -407,6 +407,11 @@ def datestrtodate_sql(self: Generator, expression: exp.DateStrToDate) -> str: return f"CAST({self.sql(expression, 'this')} AS DATE)" +def min_or_least(self: Generator, expression: exp.Min) -> str: + name = "LEAST" if expression.expressions else "MIN" + return rename_func(name)(self, expression) + + def trim_sql(self: Generator, expression: exp.Trim) -> str: target = self.sql(expression, "this") trim_type = self.sql(expression, "position") diff --git a/sqlglot/dialects/duckdb.py b/sqlglot/dialects/duckdb.py index c2755cd..db79d86 100644 --- a/sqlglot/dialects/duckdb.py +++ b/sqlglot/dialects/duckdb.py @@ -11,7 +11,6 @@ from sqlglot.dialects.dialect import ( no_pivot_sql, no_properties_sql, no_safe_divide_sql, - no_tablesample_sql, rename_func, str_position_sql, str_to_time_sql, @@ -155,7 +154,6 @@ class DuckDB(Dialect): exp.StrToTime: str_to_time_sql, exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))", exp.Struct: _struct_sql, - exp.TableSample: no_tablesample_sql, exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", exp.TimeStrToTime: timestrtotime_sql, exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))", @@ -179,3 +177,6 @@ class DuckDB(Dialect): **generator.Generator.STAR_MAPPING, "except": "EXCLUDE", } + + def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: + return super().tablesample_sql(expression, seed_prefix="REPEATABLE") diff --git a/sqlglot/dialects/hive.py b/sqlglot/dialects/hive.py index 44cd875..faed1cf 100644 --- a/sqlglot/dialects/hive.py +++ b/sqlglot/dialects/hive.py @@ -8,6 +8,7 @@ from sqlglot.dialects.dialect import ( format_time_lambda, if_sql, locate_to_strposition, + min_or_least, no_ilike_sql, no_recursive_cte_sql, no_safe_divide_sql, @@ -291,6 +292,7 @@ class Hive(Dialect): exp.JSONExtract: rename_func("GET_JSON_OBJECT"), exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), exp.Map: var_map_sql, + exp.Min: min_or_least, exp.VarMap: var_map_sql, exp.Create: create_with_partitions_sql, exp.Quantile: rename_func("PERCENTILE"), diff --git a/sqlglot/dialects/mysql.py b/sqlglot/dialects/mysql.py index b1e20bd..3531f59 100644 --- a/sqlglot/dialects/mysql.py +++ b/sqlglot/dialects/mysql.py @@ -4,6 +4,7 @@ from sqlglot import exp, generator, parser, tokens from sqlglot.dialects.dialect import ( Dialect, locate_to_strposition, + min_or_least, no_ilike_sql, no_paren_current_date_sql, no_tablesample_sql, @@ -179,7 +180,7 @@ class MySQL(Dialect): COMMANDS = tokens.Tokenizer.COMMANDS - {TokenType.SET, TokenType.SHOW} class Parser(parser.Parser): - FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS, TokenType.SCHEMA} # type: ignore + FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS, TokenType.SCHEMA, TokenType.DATABASE} # type: ignore FUNCTIONS = { **parser.Parser.FUNCTIONS, # type: ignore @@ -441,6 +442,7 @@ class MySQL(Dialect): exp.CurrentDate: no_paren_current_date_sql, exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", exp.ILike: no_ilike_sql, + exp.Min: min_or_least, exp.TableSample: no_tablesample_sql, exp.TryCast: no_trycast_sql, exp.DateAdd: _date_add_sql("ADD"), diff --git a/sqlglot/dialects/postgres.py b/sqlglot/dialects/postgres.py index 35076db..7e7902c 100644 --- a/sqlglot/dialects/postgres.py +++ b/sqlglot/dialects/postgres.py @@ -6,6 +6,7 @@ from sqlglot.dialects.dialect import ( arrow_json_extract_scalar_sql, arrow_json_extract_sql, format_time_lambda, + min_or_least, no_paren_current_date_sql, no_tablesample_sql, no_trycast_sql, @@ -229,6 +230,7 @@ class Postgres(Dialect): "REFRESH": TokenType.COMMAND, "REINDEX": TokenType.COMMAND, "RESET": TokenType.COMMAND, + "RETURNING": TokenType.RETURNING, "REVOKE": TokenType.COMMAND, "SERIAL": TokenType.SERIAL, "SMALLSERIAL": TokenType.SMALLSERIAL, @@ -296,6 +298,7 @@ class Postgres(Dialect): exp.DateSub: _date_add_sql("-"), exp.DateDiff: _date_diff_sql, exp.LogicalOr: rename_func("BOOL_OR"), + exp.Min: min_or_least, exp.RegexpLike: lambda self, e: self.binary(e, "~"), exp.RegexpILike: lambda self, e: self.binary(e, "~*"), exp.StrPosition: str_position_sql, diff --git a/sqlglot/dialects/redshift.py b/sqlglot/dialects/redshift.py index b4268e6..22ef51c 100644 --- a/sqlglot/dialects/redshift.py +++ b/sqlglot/dialects/redshift.py @@ -53,6 +53,7 @@ class Redshift(Postgres): "SUPER": TokenType.SUPER, "TIME": TokenType.TIMESTAMP, "TIMETZ": TokenType.TIMESTAMPTZ, + "TOP": TokenType.TOP, "UNLOAD": TokenType.COMMAND, "VARBYTE": TokenType.VARBINARY, } diff --git a/sqlglot/dialects/snowflake.py b/sqlglot/dialects/snowflake.py index 4a090c2..6413f6d 100644 --- a/sqlglot/dialects/snowflake.py +++ b/sqlglot/dialects/snowflake.py @@ -8,6 +8,7 @@ from sqlglot.dialects.dialect import ( datestrtodate_sql, format_time_lambda, inline_array_sql, + min_or_least, rename_func, timestrtotime_sql, ts_or_ds_to_date_sql, @@ -116,10 +117,16 @@ def _div0_to_if(args): # https://docs.snowflake.com/en/sql-reference/functions/zeroifnull def _zeroifnull_to_if(args): - cond = exp.EQ(this=seq_get(args, 0), expression=exp.Null()) + cond = exp.Is(this=seq_get(args, 0), expression=exp.Null()) return exp.If(this=cond, true=exp.Literal.number(0), false=seq_get(args, 0)) +# https://docs.snowflake.com/en/sql-reference/functions/zeroifnull +def _nullifzero_to_if(args): + cond = exp.EQ(this=seq_get(args, 0), expression=exp.Literal.number(0)) + return exp.If(this=cond, true=exp.Null(), false=seq_get(args, 0)) + + def _datatype_sql(self, expression): if expression.this == exp.DataType.Type.ARRAY: return "ARRAY" @@ -167,6 +174,11 @@ class Snowflake(Dialect): **parser.Parser.FUNCTIONS, "ARRAYAGG": exp.ArrayAgg.from_arg_list, "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list, + "DATEADD": lambda args: exp.DateAdd( + this=seq_get(args, 2), + expression=seq_get(args, 1), + unit=seq_get(args, 0), + ), "DATE_TRUNC": lambda args: exp.DateTrunc( unit=exp.Literal.string(seq_get(args, 0).name), # type: ignore this=seq_get(args, 1), @@ -180,6 +192,7 @@ class Snowflake(Dialect): "DECODE": exp.Matches.from_arg_list, "OBJECT_CONSTRUCT": parser.parse_var_map, "ZEROIFNULL": _zeroifnull_to_if, + "NULLIFZERO": _nullifzero_to_if, } FUNCTION_PARSERS = { @@ -254,6 +267,7 @@ class Snowflake(Dialect): class Generator(generator.Generator): PARAMETER_TOKEN = "$" INTEGER_DIVISION = False + MATCHED_BY_SOURCE = False TRANSFORMS = { **generator.Generator.TRANSFORMS, # type: ignore @@ -278,6 +292,7 @@ class Snowflake(Dialect): exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), exp.UnixToTime: _unix_to_time_sql, exp.DayOfWeek: rename_func("DAYOFWEEK"), + exp.Min: min_or_least, } TYPE_MAPPING = { @@ -343,11 +358,10 @@ class Snowflake(Dialect): expression. This might not be true in a case where the same column name can be sourced from another table that can properly quote but should be true in most cases. """ - values_expressions = expression.find_all(exp.Values) values_identifiers = set( flatten( - v.args.get("alias", exp.Alias()).args.get("columns", []) - for v in values_expressions + (v.args.get("alias") or exp.Alias()).args.get("columns", []) + for v in expression.find_all(exp.Values) ) ) if values_identifiers: diff --git a/sqlglot/dialects/sqlite.py b/sqlglot/dialects/sqlite.py index 86603b5..fb99d49 100644 --- a/sqlglot/dialects/sqlite.py +++ b/sqlglot/dialects/sqlite.py @@ -13,10 +13,6 @@ from sqlglot.dialects.dialect import ( from sqlglot.tokens import TokenType -def _fetch_sql(self, expression): - return self.limit_sql(exp.Limit(expression=expression.args.get("count"))) - - # https://www.sqlite.org/lang_aggfunc.html#group_concat def _group_concat_sql(self, expression): this = expression.this @@ -94,9 +90,17 @@ class SQLite(Dialect): exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), exp.TryCast: no_trycast_sql, exp.GroupConcat: _group_concat_sql, - exp.Fetch: _fetch_sql, } + def fetch_sql(self, expression): + return self.limit_sql(exp.Limit(expression=expression.args.get("count"))) + + def least_sql(self, expression): + if len(expression.expressions) > 1: + return rename_func("MIN")(self, expression) + + return self.expressions(expression) + def transaction_sql(self, expression): this = expression.this this = f" {this}" if this else "" diff --git a/sqlglot/dialects/teradata.py b/sqlglot/dialects/teradata.py index 415681c..06d5c6c 100644 --- a/sqlglot/dialects/teradata.py +++ b/sqlglot/dialects/teradata.py @@ -1,7 +1,7 @@ from __future__ import annotations from sqlglot import exp, generator, parser, tokens -from sqlglot.dialects.dialect import Dialect +from sqlglot.dialects.dialect import Dialect, min_or_least from sqlglot.tokens import TokenType @@ -126,6 +126,11 @@ class Teradata(Dialect): exp.PartitionedByProperty: exp.Properties.Location.POST_INDEX, } + TRANSFORMS = { + **generator.Generator.TRANSFORMS, + exp.Min: min_or_least, + } + def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: return f"PARTITION BY {self.sql(expression, 'this')}" diff --git a/sqlglot/dialects/tsql.py b/sqlglot/dialects/tsql.py index b9f932b..d07b083 100644 --- a/sqlglot/dialects/tsql.py +++ b/sqlglot/dialects/tsql.py @@ -4,7 +4,12 @@ import re import typing as t from sqlglot import exp, generator, parser, tokens -from sqlglot.dialects.dialect import Dialect, parse_date_delta, rename_func +from sqlglot.dialects.dialect import ( + Dialect, + min_or_least, + parse_date_delta, + rename_func, +) from sqlglot.expressions import DataType from sqlglot.helper import seq_get from sqlglot.time import format_time @@ -433,6 +438,7 @@ class TSQL(Dialect): exp.NumberToStr: _format_sql, exp.TimeToStr: _format_sql, exp.GroupConcat: _string_agg_sql, + exp.Min: min_or_least, } TRANSFORMS.pop(exp.ReturnsProperty) diff --git a/sqlglot/expressions.py b/sqlglot/expressions.py index 00a3b45..085871e 100644 --- a/sqlglot/expressions.py +++ b/sqlglot/expressions.py @@ -1031,7 +1031,7 @@ class Constraint(Expression): class Delete(Expression): - arg_types = {"with": False, "this": False, "using": False, "where": False} + arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False} class Drop(Expression): @@ -1132,6 +1132,7 @@ class Insert(Expression): "with": False, "this": True, "expression": False, + "returning": False, "overwrite": False, "exists": False, "partition": False, @@ -1139,6 +1140,10 @@ class Insert(Expression): } +class Returning(Expression): + arg_types = {"expressions": True} + + # https://dev.mysql.com/doc/refman/8.0/en/charset-introducer.html class Introducer(Expression): arg_types = {"this": True, "expression": True} @@ -1747,6 +1752,7 @@ QUERY_MODIFIERS = { "limit": False, "offset": False, "lock": False, + "sample": False, } @@ -1895,6 +1901,7 @@ class Update(Expression): "expressions": True, "from": False, "where": False, + "returning": False, } @@ -2401,6 +2408,18 @@ class Select(Subqueryable): **opts, ) + def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: + return _apply_conjunction_builder( + *expressions, + instance=self, + arg="qualify", + append=append, + into=Qualify, + dialect=dialect, + copy=copy, + **opts, + ) + def distinct(self, distinct=True, copy=True) -> Select: """ Set the OFFSET expression. @@ -2531,6 +2550,7 @@ class TableSample(Expression): "rows": False, "size": False, "seed": False, + "kind": False, } @@ -3423,7 +3443,7 @@ class JSONBExtractScalar(JSONExtract): class Least(Func): - arg_types = {"this": True, "expressions": False} + arg_types = {"expressions": False} is_var_len_args = True @@ -3485,11 +3505,13 @@ class Matches(Func): class Max(AggFunc): - arg_types = {"this": True, "expression": False} + arg_types = {"this": True, "expressions": False} + is_var_len_args = True class Min(AggFunc): - arg_types = {"this": True, "expression": False} + arg_types = {"this": True, "expressions": False} + is_var_len_args = True class Month(Func): @@ -3764,7 +3786,7 @@ class Merge(Expression): class When(Func): - arg_types = {"this": True, "then": True} + arg_types = {"matched": True, "source": False, "condition": False, "then": True} def _norm_args(expression): diff --git a/sqlglot/generator.py b/sqlglot/generator.py index 79501ef..4504e95 100644 --- a/sqlglot/generator.py +++ b/sqlglot/generator.py @@ -112,6 +112,9 @@ class Generator: # Whether or not to treat the division operator "/" as integer division INTEGER_DIVISION = True + # Whether or not MERGE ... WHEN MATCHED BY SOURCE is allowed + MATCHED_BY_SOURCE = True + TYPE_MAPPING = { exp.DataType.Type.NCHAR: "CHAR", exp.DataType.Type.NVARCHAR: "VARCHAR", @@ -688,7 +691,8 @@ class Generator: else "" ) where_sql = self.sql(expression, "where") - sql = f"DELETE{this}{using_sql}{where_sql}" + returning = self.sql(expression, "returning") + sql = f"DELETE{this}{using_sql}{where_sql}{returning}" return self.prepend_ctes(expression, sql) def drop_sql(self, expression: exp.Drop) -> str: @@ -952,8 +956,9 @@ class Generator: self.sql(expression, "partition") if expression.args.get("partition") else "" ) expression_sql = self.sql(expression, "expression") + returning = self.sql(expression, "returning") sep = self.sep() if partition_sql else "" - sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}" + sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}" return self.prepend_ctes(expression, sql) def intersect_sql(self, expression: exp.Intersect) -> str: @@ -971,6 +976,9 @@ class Generator: def pseudotype_sql(self, expression: exp.PseudoType) -> str: return expression.name.upper() + def returning_sql(self, expression: exp.Returning) -> str: + return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}" + def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str: fields = expression.args.get("fields") fields = f" FIELDS TERMINATED BY {fields}" if fields else "" @@ -1009,7 +1017,7 @@ class Generator: return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" - def tablesample_sql(self, expression: exp.TableSample) -> str: + def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: if self.alias_post_tablesample and expression.this.alias: this = self.sql(expression.this, "this") alias = f" AS {self.sql(expression.this, 'alias')}" @@ -1017,7 +1025,7 @@ class Generator: this = self.sql(expression, "this") alias = "" method = self.sql(expression, "method") - method = f" {method.upper()} " if method else "" + method = f"{method.upper()} " if method else "" numerator = self.sql(expression, "bucket_numerator") denominator = self.sql(expression, "bucket_denominator") field = self.sql(expression, "bucket_field") @@ -1029,8 +1037,9 @@ class Generator: rows = f"{rows} ROWS" if rows else "" size = self.sql(expression, "size") seed = self.sql(expression, "seed") - seed = f" SEED ({seed})" if seed else "" - return f"{this} TABLESAMPLE{method}({bucket}{percent}{rows}{size}){seed}{alias}" + seed = f" {seed_prefix} ({seed})" if seed else "" + kind = expression.args.get("kind", "TABLESAMPLE") + return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" def pivot_sql(self, expression: exp.Pivot) -> str: this = self.sql(expression, "this") @@ -1050,7 +1059,8 @@ class Generator: set_sql = self.expressions(expression, flat=True) from_sql = self.sql(expression, "from") where_sql = self.sql(expression, "where") - sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}" + returning = self.sql(expression, "returning") + sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" return self.prepend_ctes(expression, sql) def values_sql(self, expression: exp.Values) -> str: @@ -1297,6 +1307,7 @@ class Generator: self.sql(expression, "limit"), self.sql(expression, "offset"), self.sql(expression, "lock"), + self.sql(expression, "sample"), sep="", ) @@ -1956,7 +1967,11 @@ class Generator: return self.binary(expression, "=>") def when_sql(self, expression: exp.When) -> str: - this = self.sql(expression, "this") + matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" + source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" + condition = self.sql(expression, "condition") + condition = f" AND {condition}" if condition else "" + then_expression = expression.args.get("then") if isinstance(then_expression, exp.Insert): then = f"INSERT {self.sql(then_expression, 'this')}" @@ -1969,7 +1984,7 @@ class Generator: then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" else: then = self.sql(then_expression) - return f"WHEN {this} THEN {then}" + return f"WHEN {matched}{source}{condition} THEN {then}" def merge_sql(self, expression: exp.Merge) -> str: this = self.sql(expression, "this") diff --git a/sqlglot/optimizer/annotate_types.py b/sqlglot/optimizer/annotate_types.py index ca2131c..c2d6655 100644 --- a/sqlglot/optimizer/annotate_types.py +++ b/sqlglot/optimizer/annotate_types.py @@ -55,9 +55,11 @@ class TypeAnnotator: expr, exp.DataType.Type.BIGINT ), exp.Avg: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), - exp.Min: lambda self, expr: self._annotate_by_args(expr, "this"), - exp.Max: lambda self, expr: self._annotate_by_args(expr, "this"), - exp.Sum: lambda self, expr: self._annotate_by_args(expr, "this", promote=True), + exp.Min: lambda self, expr: self._annotate_by_args(expr, "this", "expressions"), + exp.Max: lambda self, expr: self._annotate_by_args(expr, "this", "expressions"), + exp.Sum: lambda self, expr: self._annotate_by_args( + expr, "this", "expressions", promote=True + ), exp.Ceil: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), exp.Count: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.BIGINT), exp.CurrentDate: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DATE), @@ -114,6 +116,7 @@ class TypeAnnotator: expr, exp.DataType.Type.VARCHAR ), exp.Initcap: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.VARCHAR), + exp.Least: lambda self, expr: self._annotate_by_args(expr, "expressions"), exp.Length: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.BIGINT), exp.Levenshtein: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.INT), exp.Ln: lambda self, expr: self._annotate_with_type(expr, exp.DataType.Type.DOUBLE), diff --git a/sqlglot/parser.py b/sqlglot/parser.py index f39bb39..894d68e 100644 --- a/sqlglot/parser.py +++ b/sqlglot/parser.py @@ -434,6 +434,7 @@ class Parser(metaclass=_Parser): exp.Having: lambda self: self._parse_having(), exp.With: lambda self: self._parse_with(), exp.Window: lambda self: self._parse_named_window(), + exp.Qualify: lambda self: self._parse_qualify(), "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(), } @@ -688,6 +689,7 @@ class Parser(metaclass=_Parser): "limit": lambda self: self._parse_limit(), "offset": lambda self: self._parse_offset(), "lock": lambda self: self._parse_lock(), + "sample": lambda self: self._parse_table_sample(as_modifier=True), } SHOW_PARSERS: t.Dict[str, t.Callable] = {} @@ -953,7 +955,8 @@ class Parser(metaclass=_Parser): self._prev_comments = None def _retreat(self, index: int) -> None: - self._advance(index - self._index) + if index != self._index: + self._advance(index - self._index) def _parse_command(self) -> exp.Expression: return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) @@ -1515,12 +1518,10 @@ class Parser(metaclass=_Parser): def _parse_insert(self) -> exp.Expression: overwrite = self._match(TokenType.OVERWRITE) local = self._match(TokenType.LOCAL) - - this: t.Optional[exp.Expression] - alternative = None + if self._match_text_seq("DIRECTORY"): - this = self.expression( + this: t.Optional[exp.Expression] = self.expression( exp.Directory, this=self._parse_var_or_string(), local=local, @@ -1540,10 +1541,17 @@ class Parser(metaclass=_Parser): exists=self._parse_exists(), partition=self._parse_partition(), expression=self._parse_ddl_select(), + returning=self._parse_returning(), overwrite=overwrite, alternative=alternative, ) + def _parse_returning(self) -> t.Optional[exp.Expression]: + if not self._match(TokenType.RETURNING): + return None + + return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) + def _parse_row(self) -> t.Optional[exp.Expression]: if not self._match(TokenType.FORMAT): return None @@ -1601,6 +1609,7 @@ class Parser(metaclass=_Parser): this=self._parse_table(schema=True), using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), where=self._parse_where(), + returning=self._parse_returning(), ) def _parse_update(self) -> exp.Expression: @@ -1611,6 +1620,7 @@ class Parser(metaclass=_Parser): "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), "from": self._parse_from(), "where": self._parse_where(), + "returning": self._parse_returning(), }, ) @@ -2156,11 +2166,12 @@ class Parser(metaclass=_Parser): return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) - def _parse_table_sample(self) -> t.Optional[exp.Expression]: - if not self._match(TokenType.TABLE_SAMPLE): + def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: + if not self._match(TokenType.TABLE_SAMPLE) and not ( + as_modifier and self._match_text_seq("USING", "SAMPLE") + ): return None - method = self._parse_var() bucket_numerator = None bucket_denominator = None bucket_field = None @@ -2169,7 +2180,12 @@ class Parser(metaclass=_Parser): size = None seed = None - self._match_l_paren() + kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" + method = self._parse_var(tokens=(TokenType.ROW,)) + + self._match(TokenType.L_PAREN) + + num = self._parse_number() if self._match(TokenType.BUCKET): bucket_numerator = self._parse_number() @@ -2177,19 +2193,20 @@ class Parser(metaclass=_Parser): bucket_denominator = bucket_denominator = self._parse_number() self._match(TokenType.ON) bucket_field = self._parse_field() + elif self._match_set((TokenType.PERCENT, TokenType.MOD)): + percent = num + elif self._match(TokenType.ROWS): + rows = num else: - num = self._parse_number() + size = num - if self._match(TokenType.PERCENT): - percent = num - elif self._match(TokenType.ROWS): - rows = num - else: - size = num + self._match(TokenType.R_PAREN) - self._match_r_paren() - - if self._match(TokenType.SEED): + if self._match(TokenType.L_PAREN): + method = self._parse_var() + seed = self._match(TokenType.COMMA) and self._parse_number() + self._match_r_paren() + elif self._match_texts(("SEED", "REPEATABLE")): seed = self._parse_wrapped(self._parse_number) return self.expression( @@ -2202,6 +2219,7 @@ class Parser(metaclass=_Parser): rows=rows, size=size, seed=seed, + kind=kind, ) def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: @@ -2531,7 +2549,7 @@ class Parser(metaclass=_Parser): this = self._parse_column() if type_token: - if this and not isinstance(this, exp.Star): + if isinstance(this, exp.Literal): return self.expression(exp.Cast, this=this, to=type_token) if not type_token.args.get("expressions"): self._retreat(index) @@ -2626,7 +2644,12 @@ class Parser(metaclass=_Parser): if value is None: value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) elif type_token == TokenType.INTERVAL: - value = self.expression(exp.Interval, unit=self._parse_var()) + unit = self._parse_var() + + if not unit: + value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) + else: + value = self.expression(exp.Interval, unit=unit) if maybe_func and check_func: index2 = self._index @@ -3495,8 +3518,14 @@ class Parser(metaclass=_Parser): return self.expression(exp.Identifier, this=self._prev.text, quoted=True) return self._parse_placeholder() - def _parse_var(self, any_token: bool = False) -> t.Optional[exp.Expression]: - if (any_token and self._advance_any()) or self._match(TokenType.VAR): + def _parse_var( + self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None + ) -> t.Optional[exp.Expression]: + if ( + (any_token and self._advance_any()) + or self._match(TokenType.VAR) + or (self._match_set(tokens) if tokens else False) + ): return self.expression(exp.Var, this=self._prev.text) return self._parse_placeholder() @@ -3732,19 +3761,26 @@ class Parser(metaclass=_Parser): return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) def _parse_alter(self) -> t.Optional[exp.Expression]: + start = self._prev + if not self._match(TokenType.TABLE): - return self._parse_as_command(self._prev) + return self._parse_as_command(start) exists = self._parse_exists() this = self._parse_table(schema=True) - if not self._curr: - return None - - parser = self.ALTER_PARSERS.get(self._curr.text.upper()) - actions = ensure_list(self._advance() or parser(self)) if parser else [] # type: ignore + if self._next: + self._advance() + parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None - return self.expression(exp.AlterTable, this=this, exists=exists, actions=actions) + if parser: + return self.expression( + exp.AlterTable, + this=this, + exists=exists, + actions=ensure_list(parser(self)), + ) + return self._parse_as_command(start) def _parse_show(self) -> t.Optional[exp.Expression]: parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore @@ -3775,7 +3811,15 @@ class Parser(metaclass=_Parser): whens = [] while self._match(TokenType.WHEN): - this = self._parse_conjunction() + matched = not self._match(TokenType.NOT) + self._match_text_seq("MATCHED") + source = ( + False + if self._match_text_seq("BY", "TARGET") + else self._match_text_seq("BY", "SOURCE") + ) + condition = self._parse_conjunction() if self._match(TokenType.AND) else None + self._match(TokenType.THEN) if self._match(TokenType.INSERT): @@ -3800,8 +3844,18 @@ class Parser(metaclass=_Parser): ) elif self._match(TokenType.DELETE): then = self.expression(exp.Var, this=self._prev.text) + else: + then = None - whens.append(self.expression(exp.When, this=this, then=then)) + whens.append( + self.expression( + exp.When, + matched=matched, + source=source, + condition=condition, + then=then, + ) + ) return self.expression( exp.Merge, diff --git a/sqlglot/tokens.py b/sqlglot/tokens.py index 7a23803..5f4b77d 100644 --- a/sqlglot/tokens.py +++ b/sqlglot/tokens.py @@ -855,11 +855,12 @@ class Tokenizer(metaclass=_Tokenizer): def _scan_keywords(self) -> None: size = 0 word = None - chars: t.Optional[str] = self._text + chars = self._text char = chars prev_space = False skip = False trie = self.KEYWORD_TRIE + single_token = char in self.SINGLE_TOKENS while chars: if skip: @@ -876,6 +877,7 @@ class Tokenizer(metaclass=_Tokenizer): if end < self.size: char = self.sql[end] + single_token = single_token or char in self.SINGLE_TOKENS is_space = char in self.WHITE_SPACE if not is_space or not prev_space: @@ -887,7 +889,9 @@ class Tokenizer(metaclass=_Tokenizer): else: skip = True else: - chars = None + chars = " " + + word = None if not single_token and chars[-1] not in self.WHITE_SPACE else word if not word: if self._char in self.SINGLE_TOKENS: diff --git a/tests/dialects/test_bigquery.py b/tests/dialects/test_bigquery.py index 7b18a6a..22387da 100644 --- a/tests/dialects/test_bigquery.py +++ b/tests/dialects/test_bigquery.py @@ -8,6 +8,8 @@ class TestBigQuery(Validator): def test_bigquery(self): self.validate_identity("SELECT STRUCT>(['2023-01-17'])") self.validate_identity("SELECT * FROM q UNPIVOT(values FOR quarter IN (b, c))") + + self.validate_all("LEAST(x, y)", read={"sqlite": "MIN(x, y)"}) self.validate_all( "REGEXP_CONTAINS('foo', '.*')", read={"bigquery": "REGEXP_CONTAINS('foo', '.*')"}, @@ -390,3 +392,18 @@ class TestBigQuery(Validator): "bigquery": "INSERT INTO test (cola, colb) VALUES (CAST(7 AS STRING), CAST(14 AS STRING))", }, ) + + def test_merge(self): + self.validate_all( + """ + MERGE dataset.Inventory T + USING dataset.NewArrivals S ON FALSE + WHEN NOT MATCHED BY TARGET AND product LIKE '%a%' + THEN DELETE + WHEN NOT MATCHED BY SOURCE AND product LIKE '%b%' + THEN DELETE""", + write={ + "bigquery": "MERGE INTO dataset.Inventory AS T USING dataset.NewArrivals AS S ON FALSE WHEN NOT MATCHED AND product LIKE '%a%' THEN DELETE WHEN NOT MATCHED BY SOURCE AND product LIKE '%b%' THEN DELETE", + "snowflake": "MERGE INTO dataset.Inventory AS T USING dataset.NewArrivals AS S ON FALSE WHEN NOT MATCHED AND product LIKE '%a%' THEN DELETE WHEN NOT MATCHED AND product LIKE '%b%' THEN DELETE", + }, + ) diff --git a/tests/dialects/test_dialect.py b/tests/dialects/test_dialect.py index 5054d94..69563cb 100644 --- a/tests/dialects/test_dialect.py +++ b/tests/dialects/test_dialect.py @@ -510,6 +510,7 @@ class TestDialect(Validator): "DATE_ADD(x, 1, 'day')", read={ "mysql": "DATE_ADD(x, INTERVAL 1 DAY)", + "snowflake": "DATEADD('day', 1, x)", "starrocks": "DATE_ADD(x, INTERVAL 1 DAY)", }, write={ diff --git a/tests/dialects/test_duckdb.py b/tests/dialects/test_duckdb.py index 0efb7e7..a1a0090 100644 --- a/tests/dialects/test_duckdb.py +++ b/tests/dialects/test_duckdb.py @@ -75,6 +75,40 @@ class TestDuckDB(Validator): }, ) + def test_sample(self): + self.validate_all( + "SELECT * FROM tbl USING SAMPLE 5", + write={"duckdb": "SELECT * FROM tbl USING SAMPLE (5)"}, + ) + self.validate_all( + "SELECT * FROM tbl USING SAMPLE 10%", + write={"duckdb": "SELECT * FROM tbl USING SAMPLE (10 PERCENT)"}, + ) + self.validate_all( + "SELECT * FROM tbl USING SAMPLE 10 PERCENT (bernoulli)", + write={"duckdb": "SELECT * FROM tbl USING SAMPLE BERNOULLI (10 PERCENT)"}, + ) + self.validate_all( + "SELECT * FROM tbl USING SAMPLE reservoir(50 ROWS) REPEATABLE (100)", + write={"duckdb": "SELECT * FROM tbl USING SAMPLE RESERVOIR (50 ROWS) REPEATABLE (100)"}, + ) + self.validate_all( + "SELECT * FROM tbl USING SAMPLE 10% (system, 377)", + write={"duckdb": "SELECT * FROM tbl USING SAMPLE SYSTEM (10 PERCENT) REPEATABLE (377)"}, + ) + self.validate_all( + "SELECT * FROM tbl TABLESAMPLE RESERVOIR(20%), tbl2 WHERE tbl.i=tbl2.i", + write={ + "duckdb": "SELECT * FROM tbl TABLESAMPLE RESERVOIR (20 PERCENT), tbl2 WHERE tbl.i = tbl2.i" + }, + ) + self.validate_all( + "SELECT * FROM tbl, tbl2 WHERE tbl.i=tbl2.i USING SAMPLE RESERVOIR(20%)", + write={ + "duckdb": "SELECT * FROM tbl, tbl2 WHERE tbl.i = tbl2.i USING SAMPLE RESERVOIR (20 PERCENT)" + }, + ) + def test_duckdb(self): self.validate_identity("SELECT {'a': 1} AS x") self.validate_identity("SELECT {'a': {'b': {'c': 1}}, 'd': {'e': 2}} AS x") diff --git a/tests/dialects/test_hive.py b/tests/dialects/test_hive.py index a067764..8484805 100644 --- a/tests/dialects/test_hive.py +++ b/tests/dialects/test_hive.py @@ -482,9 +482,9 @@ class TestHive(Validator): self.validate_all( "SELECT * FROM x TABLESAMPLE(10) y", write={ - "presto": "SELECT * FROM x AS y TABLESAMPLE(10)", - "hive": "SELECT * FROM x TABLESAMPLE(10) AS y", - "spark": "SELECT * FROM x TABLESAMPLE(10) AS y", + "presto": "SELECT * FROM x AS y TABLESAMPLE (10)", + "hive": "SELECT * FROM x TABLESAMPLE (10) AS y", + "spark": "SELECT * FROM x TABLESAMPLE (10) AS y", }, ) self.validate_all( @@ -626,25 +626,25 @@ class TestHive(Validator): }, ) self.validate_all( - "SELECT * FROM x TABLESAMPLE(1) AS foo", + "SELECT * FROM x TABLESAMPLE (1) AS foo", read={ - "presto": "SELECT * FROM x AS foo TABLESAMPLE(1)", + "presto": "SELECT * FROM x AS foo TABLESAMPLE (1)", }, write={ - "presto": "SELECT * FROM x AS foo TABLESAMPLE(1)", - "hive": "SELECT * FROM x TABLESAMPLE(1) AS foo", - "spark": "SELECT * FROM x TABLESAMPLE(1) AS foo", + "presto": "SELECT * FROM x AS foo TABLESAMPLE (1)", + "hive": "SELECT * FROM x TABLESAMPLE (1) AS foo", + "spark": "SELECT * FROM x TABLESAMPLE (1) AS foo", }, ) self.validate_all( - "SELECT * FROM x TABLESAMPLE(1) AS foo", + "SELECT * FROM x TABLESAMPLE (1) AS foo", read={ - "presto": "SELECT * FROM x AS foo TABLESAMPLE(1)", + "presto": "SELECT * FROM x AS foo TABLESAMPLE (1)", }, write={ - "presto": "SELECT * FROM x AS foo TABLESAMPLE(1)", - "hive": "SELECT * FROM x TABLESAMPLE(1) AS foo", - "spark": "SELECT * FROM x TABLESAMPLE(1) AS foo", + "presto": "SELECT * FROM x AS foo TABLESAMPLE (1)", + "hive": "SELECT * FROM x TABLESAMPLE (1) AS foo", + "spark": "SELECT * FROM x TABLESAMPLE (1) AS foo", }, ) self.validate_all( diff --git a/tests/dialects/test_mysql.py b/tests/dialects/test_mysql.py index 192f9fc..5f8560a 100644 --- a/tests/dialects/test_mysql.py +++ b/tests/dialects/test_mysql.py @@ -64,6 +64,7 @@ class TestMySQL(Validator): self.validate_identity("SET TRANSACTION READ ONLY") self.validate_identity("SET GLOBAL TRANSACTION ISOLATION LEVEL REPEATABLE READ, READ WRITE") self.validate_identity("SELECT SCHEMA()") + self.validate_identity("SELECT DATABASE()") def test_types(self): self.validate_all( diff --git a/tests/dialects/test_postgres.py b/tests/dialects/test_postgres.py index 5c4a23e..0881a89 100644 --- a/tests/dialects/test_postgres.py +++ b/tests/dialects/test_postgres.py @@ -11,6 +11,14 @@ class TestPostgres(Validator): self.validate_identity("CREATE TABLE test (foo JSONB)") self.validate_identity("CREATE TABLE test (foo VARCHAR(64)[])") + self.validate_identity("INSERT INTO x VALUES (1, 'a', 2.0) RETURNING a") + self.validate_identity("INSERT INTO x VALUES (1, 'a', 2.0) RETURNING a, b") + self.validate_identity("INSERT INTO x VALUES (1, 'a', 2.0) RETURNING *") + self.validate_identity( + "DELETE FROM event USING sales AS s WHERE event.eventid = s.eventid RETURNING a" + ) + self.validate_identity("UPDATE tbl_name SET foo = 123 RETURNING a") + self.validate_all( "CREATE OR REPLACE FUNCTION function_name (input_a character varying DEFAULT NULL::character varying)", write={ diff --git a/tests/dialects/test_redshift.py b/tests/dialects/test_redshift.py index 640706a..ad83b99 100644 --- a/tests/dialects/test_redshift.py +++ b/tests/dialects/test_redshift.py @@ -85,6 +85,12 @@ class TestRedshift(Validator): "presto": "DATE_DIFF(d, a, b)", }, ) + self.validate_all( + "SELECT TOP 1 x FROM y", + write={ + "redshift": "SELECT x FROM y LIMIT 1", + }, + ) def test_identity(self): self.validate_identity( diff --git a/tests/dialects/test_snowflake.py b/tests/dialects/test_snowflake.py index 3358227..c28c58d 100644 --- a/tests/dialects/test_snowflake.py +++ b/tests/dialects/test_snowflake.py @@ -62,6 +62,28 @@ class TestSnowflake(Validator): "duckdb": "CASE WHEN bar = 0 THEN 0 ELSE CAST(foo AS DOUBLE) / bar END", }, ) + self.validate_all( + "ZEROIFNULL(foo)", + write={ + "snowflake": "IFF(foo IS NULL, 0, foo)", + "sqlite": "CASE WHEN foo IS NULL THEN 0 ELSE foo END", + "presto": "IF(foo IS NULL, 0, foo)", + "spark": "IF(foo IS NULL, 0, foo)", + "hive": "IF(foo IS NULL, 0, foo)", + "duckdb": "CASE WHEN foo IS NULL THEN 0 ELSE foo END", + }, + ) + self.validate_all( + "NULLIFZERO(foo)", + write={ + "snowflake": "IFF(foo = 0, NULL, foo)", + "sqlite": "CASE WHEN foo = 0 THEN NULL ELSE foo END", + "presto": "IF(foo = 0, NULL, foo)", + "spark": "IF(foo = 0, NULL, foo)", + "hive": "IF(foo = 0, NULL, foo)", + "duckdb": "CASE WHEN foo = 0 THEN NULL ELSE foo END", + }, + ) self.validate_all( "CREATE OR REPLACE TEMPORARY TABLE x (y NUMBER IDENTITY(0, 1))", write={ @@ -279,12 +301,6 @@ class TestSnowflake(Validator): "snowflake": "SELECT REGEXP_LIKE(a, b)", }, ) - self.validate_all( - "SELECT a FROM test SAMPLE BLOCK (0.5) SEED (42)", - write={ - "snowflake": "SELECT a FROM test TABLESAMPLE BLOCK (0.5) SEED (42)", - }, - ) self.validate_all( "SELECT a FROM test pivot", write={ @@ -356,6 +372,51 @@ class TestSnowflake(Validator): }, ) + def test_sample(self): + self.validate_identity("SELECT * FROM testtable TABLESAMPLE BERNOULLI (20.3)") + self.validate_identity("SELECT * FROM testtable TABLESAMPLE (100)") + self.validate_identity( + "SELECT i, j FROM table1 AS t1 INNER JOIN table2 AS t2 TABLESAMPLE (50) WHERE t2.j = t1.i" + ) + self.validate_identity( + "SELECT * FROM (SELECT * FROM t1 JOIN t2 ON t1.a = t2.c) TABLESAMPLE (1)" + ) + self.validate_identity("SELECT * FROM testtable TABLESAMPLE SYSTEM (3) SEED (82)") + self.validate_identity("SELECT * FROM testtable TABLESAMPLE (10 ROWS)") + + self.validate_all( + "SELECT * FROM testtable SAMPLE (10)", + write={"snowflake": "SELECT * FROM testtable TABLESAMPLE (10)"}, + ) + self.validate_all( + "SELECT * FROM testtable SAMPLE ROW (0)", + write={"snowflake": "SELECT * FROM testtable TABLESAMPLE ROW (0)"}, + ) + self.validate_all( + "SELECT a FROM test SAMPLE BLOCK (0.5) SEED (42)", + write={ + "snowflake": "SELECT a FROM test TABLESAMPLE BLOCK (0.5) SEED (42)", + }, + ) + self.validate_all( + """ + SELECT i, j + FROM + table1 AS t1 SAMPLE (25) -- 25% of rows in table1 + INNER JOIN + table2 AS t2 SAMPLE (50) -- 50% of rows in table2 + WHERE t2.j = t1.i""", + write={ + "snowflake": "SELECT i, j FROM table1 AS t1 TABLESAMPLE (25) /* 25% of rows in table1 */ INNER JOIN table2 AS t2 TABLESAMPLE (50) /* 50% of rows in table2 */ WHERE t2.j = t1.i", + }, + ) + self.validate_all( + "SELECT * FROM testtable SAMPLE BLOCK (0.012) REPEATABLE (99992)", + write={ + "snowflake": "SELECT * FROM testtable TABLESAMPLE BLOCK (0.012) SEED (99992)", + }, + ) + def test_timestamps(self): self.validate_identity("SELECT EXTRACT(month FROM a)") @@ -415,6 +476,13 @@ class TestSnowflake(Validator): "presto": "SELECT TO_UNIXTIME(CAST(foo AS TIMESTAMP)) * 1000 AS ddate FROM table_name", }, ) + self.validate_all( + "DATEADD(DAY, 5, CAST('2008-12-25' AS DATE))", + write={ + "bigquery": "DATE_ADD(CAST('2008-12-25' AS DATE), INTERVAL 5 DAY)", + "snowflake": "DATEADD(DAY, 5, CAST('2008-12-25' AS DATE))", + }, + ) def test_semi_structured_types(self): self.validate_identity("SELECT CAST(a AS VARIANT)") @@ -655,6 +723,14 @@ FROM persons AS p, LATERAL FLATTEN(input => p.c, path => 'contact') AS f, LATERA }, ) + self.validate_all( + """SELECT $1 AS "_1" FROM VALUES ('a'), ('b')""", + write={ + "snowflake": """SELECT $1 AS "_1" FROM (VALUES ('a'), ('b'))""", + "spark": """SELECT @1 AS `_1` FROM VALUES ('a'), ('b')""", + }, + ) + def test_describe_table(self): self.validate_all( "DESCRIBE TABLE db.table", diff --git a/tests/dialects/test_sqlite.py b/tests/dialects/test_sqlite.py index 19a88f3..a3e4cc9 100644 --- a/tests/dialects/test_sqlite.py +++ b/tests/dialects/test_sqlite.py @@ -81,6 +81,13 @@ class TestSQLite(Validator): "sqlite": "SELECT fname, lname, age FROM person ORDER BY age DESC NULLS FIRST, fname NULLS LAST, lname", }, ) + self.validate_all("x", read={"snowflake": "LEAST(x)"}) + self.validate_all("MIN(x)", read={"snowflake": "MIN(x)"}, write={"snowflake": "MIN(x)"}) + self.validate_all( + "MIN(x, y, z)", + read={"snowflake": "LEAST(x, y, z)"}, + write={"snowflake": "LEAST(x, y, z)"}, + ) def test_hexadecimal_literal(self): self.validate_all( diff --git a/tests/fixtures/identity.sql b/tests/fixtures/identity.sql index 0677a05..085880c 100644 --- a/tests/fixtures/identity.sql +++ b/tests/fixtures/identity.sql @@ -153,6 +153,7 @@ SUM(ROW() OVER (PARTITION BY x AND y)) CASE WHEN (x > 1) THEN 1 ELSE 0 END CASE (1) WHEN 1 THEN 1 ELSE 0 END CASE 1 WHEN 1 THEN 1 ELSE 0 END +CASE 1 WHEN 1 THEN timestamp ELSE date END x AT TIME ZONE 'UTC' CAST('2025-11-20 00:00:00+00' AS TIMESTAMP) AT TIME ZONE 'Africa/Cairo' SET x = 1 @@ -191,6 +192,7 @@ SELECT DISTINCT TIMESTAMP_TRUNC(time_field, MONTH) AS time_value FROM "table" SELECT DISTINCT ON (x) x, y FROM z SELECT DISTINCT ON (x, y + 1) * FROM z SELECT DISTINCT ON (x.y) * FROM z +SELECT DISTINCT FROM_SOMETHING SELECT top.x SELECT TIMESTAMP(DATE_TRUNC(DATE(time_field), MONTH)) AS time_value FROM "table" SELECT GREATEST((3 + 1), LEAST(3, 4)) @@ -295,13 +297,13 @@ SELECT CASE CASE x > 1 WHEN TRUE THEN 1 END WHEN 1 THEN 1 ELSE 2 END SELECT a FROM (SELECT a FROM test) AS x SELECT a FROM (SELECT a FROM (SELECT a FROM test) AS y) AS x SELECT a FROM test WHERE a IN (1, 2, 3) OR b BETWEEN 1 AND 4 -SELECT a FROM test AS x TABLESAMPLE(BUCKET 1 OUT OF 5) -SELECT a FROM test TABLESAMPLE(BUCKET 1 OUT OF 5) -SELECT a FROM test TABLESAMPLE(BUCKET 1 OUT OF 5 ON x) -SELECT a FROM test TABLESAMPLE(BUCKET 1 OUT OF 5 ON RAND()) -SELECT a FROM test TABLESAMPLE(0.1 PERCENT) -SELECT a FROM test TABLESAMPLE(100) -SELECT a FROM test TABLESAMPLE(100 ROWS) +SELECT a FROM test AS x TABLESAMPLE (BUCKET 1 OUT OF 5) +SELECT a FROM test TABLESAMPLE (BUCKET 1 OUT OF 5) +SELECT a FROM test TABLESAMPLE (BUCKET 1 OUT OF 5 ON x) +SELECT a FROM test TABLESAMPLE (BUCKET 1 OUT OF 5 ON RAND()) +SELECT a FROM test TABLESAMPLE (0.1 PERCENT) +SELECT a FROM test TABLESAMPLE (100) +SELECT a FROM test TABLESAMPLE (100 ROWS) SELECT a FROM test TABLESAMPLE BERNOULLI (50) SELECT a FROM test TABLESAMPLE SYSTEM (75) SELECT a FROM test PIVOT(SUM(x) FOR y IN ('z', 'q')) @@ -310,7 +312,7 @@ SELECT a FROM test PIVOT(SOMEAGG(x, y, z) FOR q IN (1)) SELECT a FROM test PIVOT(SUM(x) FOR y IN ('z', 'q')) PIVOT(MAX(b) FOR c IN ('d')) SELECT a FROM (SELECT a, b FROM test) PIVOT(SUM(x) FOR y IN ('z', 'q')) SELECT a FROM test UNPIVOT(x FOR y IN (z, q)) AS x -SELECT a FROM test PIVOT(SUM(x) FOR y IN ('z', 'q')) AS x TABLESAMPLE(0.1) +SELECT a FROM test PIVOT(SUM(x) FOR y IN ('z', 'q')) AS x TABLESAMPLE (0.1) SELECT a FROM test PIVOT(SUM(x) FOR y IN ('z', 'q')) UNPIVOT(x FOR y IN (z, q)) AS x SELECT ABS(a) FROM test SELECT AVG(a) FROM test @@ -466,6 +468,7 @@ SELECT SUM(x) OVER (PARTITION BY a RANGE BETWEEN 1 AND 3) SELECT SUM(x) OVER (PARTITION BY a RANGE BETWEEN 1 FOLLOWING AND 3) SELECT SUM(x) OVER (PARTITION BY a RANGE BETWEEN 1 FOLLOWING AND UNBOUNDED FOLLOWING) SELECT AVG(x) OVER (ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t +SELECT SUM(x) OVER (PARTITION BY a ORDER BY date ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING) SELECT LISTAGG(x) WITHIN GROUP (ORDER BY x) AS y SELECT LISTAGG(x) WITHIN GROUP (ORDER BY x DESC) SELECT PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY x) @@ -708,6 +711,7 @@ SELECT 1 /* c1 */ + 2 /* c2 */, 3 /* c3 */ SELECT x FROM a.b.c /* x */, e.f.g /* x */ SELECT FOO(x /* c */) /* FOO */, b /* b */ SELECT FOO(x /* c1 */ + y /* c2 */ + BLA(5 /* c3 */)) FROM (VALUES (1 /* c4 */, "test" /* c5 */)) /* c6 */ +INSERT INTO foo SELECT * FROM bar /* comment */ SELECT a FROM x WHERE a COLLATE 'utf8_general_ci' = 'b' SELECT x AS INTO FROM bla SELECT * INTO newevent FROM event @@ -731,6 +735,7 @@ ALTER TABLE orders DROP PARTITION(dt = '2014-05-14', country = 'IN') ALTER TABLE orders DROP IF EXISTS PARTITION(dt = '2014-05-14', country = 'IN') ALTER TABLE orders DROP PARTITION(dt = '2014-05-14', country = 'IN'), PARTITION(dt = '2014-05-15', country = 'IN') ALTER TABLE mydataset.mytable DELETE WHERE x = 1 +ALTER TABLE table1 MODIFY COLUMN name1 SET TAG foo='bar' SELECT div.a FROM test_table AS div WITH view AS (SELECT 1 AS x) SELECT * FROM view ARRAY>> diff --git a/tests/test_build.py b/tests/test_build.py index fbfbb62..718e471 100644 --- a/tests/test_build.py +++ b/tests/test_build.py @@ -504,6 +504,12 @@ class TestBuild(unittest.TestCase): .window("d AS (PARTITION BY g ORDER BY h)"), "SELECT AVG(a) OVER b, MIN(c) OVER d FROM table WINDOW b AS (PARTITION BY e ORDER BY f), d AS (PARTITION BY g ORDER BY h)", ), + ( + lambda: select("*") + .from_("table") + .qualify("row_number() OVER (PARTITION BY a ORDER BY b) = 1"), + "SELECT * FROM table QUALIFY ROW_NUMBER() OVER (PARTITION BY a ORDER BY b) = 1", + ), ]: with self.subTest(sql): self.assertEqual(expression().sql(dialect[0] if dialect else None), sql) diff --git a/tests/test_optimizer.py b/tests/test_optimizer.py index 8ddd95f..e10d05e 100644 --- a/tests/test_optimizer.py +++ b/tests/test_optimizer.py @@ -364,6 +364,11 @@ FROM READ_CSV('tests/fixtures/optimizer/tpc-h/nation.csv.gz', 'delimiter', '|') expression = annotate_types(parse_one("ARRAY(1)::ARRAY")) self.assertEqual(expression.type, parse_one("ARRAY", into=exp.DataType)) + expression = annotate_types(parse_one("CAST(x AS INTERVAL)")) + self.assertEqual(expression.type.this, exp.DataType.Type.INTERVAL) + self.assertEqual(expression.this.type.this, exp.DataType.Type.UNKNOWN) + self.assertEqual(expression.args["to"].type.this, exp.DataType.Type.INTERVAL) + def test_cache_annotation(self): expression = annotate_types( parse_one("CACHE LAZY TABLE x OPTIONS('storageLevel' = 'value') AS SELECT 1") diff --git a/tests/test_transpile.py b/tests/test_transpile.py index 0463aed..6355400 100644 --- a/tests/test_transpile.py +++ b/tests/test_transpile.py @@ -202,9 +202,9 @@ FROM bar /* comment 5 */, tbl /* comment 6 */""", ) def test_types(self): - self.validate("INT x", "CAST(x AS INT)") - self.validate("VARCHAR x y", "CAST(x AS VARCHAR) AS y") - self.validate("STRING x y", "CAST(x AS TEXT) AS y") + self.validate("INT 1", "CAST(1 AS INT)") + self.validate("VARCHAR 'x' y", "CAST('x' AS VARCHAR) AS y") + self.validate("STRING 'x' y", "CAST('x' AS TEXT) AS y") self.validate("x::INT", "CAST(x AS INT)") self.validate("x::INTEGER", "CAST(x AS INT)") self.validate("x::INT y", "CAST(x AS INT) AS y") @@ -221,7 +221,7 @@ FROM bar /* comment 5 */, tbl /* comment 6 */""", self.validate("a NOT BETWEEN b AND c", "NOT a BETWEEN b AND c") self.validate("a NOT IN (1, 2)", "NOT a IN (1, 2)") self.validate("a IS NOT NULL", "NOT a IS NULL") - self.validate("a LIKE TEXT y", "a LIKE CAST(y AS TEXT)") + self.validate("a LIKE TEXT 'y'", "a LIKE CAST('y' AS TEXT)") def test_extract(self): self.validate( -- cgit v1.2.3