From e53bec16fb5ba08b2ff8daf3ffe5467a7c24b757 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 12 Mar 2023 11:17:12 +0100 Subject: Adding upstream version 11.3.6. Signed-off-by: Daniel Baumann --- docs/search.js | 2 +- docs/sqlglot.html | 2 +- docs/sqlglot/dataframe/sql.html | 38 +- docs/sqlglot/dialects/drill.html | 622 +- docs/sqlglot/dialects/duckdb.html | 685 +- docs/sqlglot/dialects/mysql.html | 655 +- docs/sqlglot/dialects/postgres.html | 1156 +-- docs/sqlglot/dialects/redshift.html | 740 +- docs/sqlglot/dialects/snowflake.html | 1792 ++-- docs/sqlglot/dialects/sqlite.html | 227 +- docs/sqlglot/dialects/tsql.html | 1314 ++- docs/sqlglot/expressions.html | 7466 +++++++-------- docs/sqlglot/generator.html | 10854 +++++++++++----------- docs/sqlglot/lineage.html | 2 +- docs/sqlglot/optimizer/optimizer.html | 2 +- docs/sqlglot/parser.html | 15592 ++++++++++++++++---------------- docs/sqlglot/tokens.html | 4358 ++++----- sqlglot/__init__.py | 2 +- sqlglot/dataframe/sql/column.py | 8 +- sqlglot/dialects/bigquery.py | 4 - sqlglot/dialects/clickhouse.py | 3 - sqlglot/dialects/databricks.py | 1 + sqlglot/dialects/drill.py | 4 +- sqlglot/dialects/duckdb.py | 31 +- sqlglot/dialects/hive.py | 4 - sqlglot/dialects/mysql.py | 4 +- sqlglot/dialects/oracle.py | 7 +- sqlglot/dialects/postgres.py | 19 +- sqlglot/dialects/redshift.py | 5 + sqlglot/dialects/snowflake.py | 32 +- sqlglot/dialects/sqlite.py | 27 + sqlglot/dialects/teradata.py | 1 + sqlglot/dialects/tsql.py | 13 +- sqlglot/expressions.py | 35 +- sqlglot/generator.py | 32 +- sqlglot/parser.py | 52 +- sqlglot/tokens.py | 10 + tests/dialects/test_dialect.py | 8 +- tests/dialects/test_drill.py | 13 + tests/dialects/test_duckdb.py | 97 +- tests/dialects/test_postgres.py | 39 +- tests/dialects/test_redshift.py | 1 + tests/dialects/test_snowflake.py | 78 +- tests/dialects/test_sqlite.py | 14 + tests/fixtures/identity.sql | 2 + tests/test_expressions.py | 2 + 46 files changed, 23416 insertions(+), 22639 deletions(-) diff --git a/docs/search.js b/docs/search.js index 2ba8c80..9028ca3 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.

\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:

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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

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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:

\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

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

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\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

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

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\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:

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\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

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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

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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:

\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": "

\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='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
\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": "

\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": "

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\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.

\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": "

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

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", "signature": "(self, *columns: str) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.table_iter": {"fullname": "sqlglot.executor.context.Context.table_iter", "modulename": "sqlglot.executor.context", "qualname": "Context.table_iter", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttable: str) -> Iterator[Tuple[sqlglot.executor.table.TableIter, sqlglot.executor.context.Context]]:", "funcdef": "def"}, "sqlglot.executor.context.Context.filter": {"fullname": "sqlglot.executor.context.Context.filter", "modulename": "sqlglot.executor.context", "qualname": "Context.filter", "kind": "function", "doc": "

\n", "signature": "(self, condition) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.sort": {"fullname": "sqlglot.executor.context.Context.sort", "modulename": "sqlglot.executor.context", "qualname": "Context.sort", "kind": "function", "doc": "

\n", "signature": "(self, key) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.set_row": {"fullname": "sqlglot.executor.context.Context.set_row", "modulename": "sqlglot.executor.context", "qualname": "Context.set_row", "kind": "function", "doc": "

\n", "signature": "(self, row: Tuple) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.set_index": {"fullname": "sqlglot.executor.context.Context.set_index", "modulename": "sqlglot.executor.context", "qualname": "Context.set_index", "kind": "function", "doc": "

\n", "signature": "(self, index: int) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.set_range": {"fullname": "sqlglot.executor.context.Context.set_range", "modulename": "sqlglot.executor.context", "qualname": "Context.set_range", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> None:", "funcdef": "def"}, "sqlglot.executor.env": {"fullname": "sqlglot.executor.env", "modulename": "sqlglot.executor.env", "kind": "module", "doc": "

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

\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": "

\n", "signature": "(substr, this, position=None):", "funcdef": "def"}, "sqlglot.executor.env.substring": {"fullname": "sqlglot.executor.env.substring", "modulename": "sqlglot.executor.env", "qualname": "substring", "kind": "function", "doc": "

\n", "signature": "(this, start=None, length=None):", "funcdef": "def"}, "sqlglot.executor.env.cast": {"fullname": "sqlglot.executor.env.cast", "modulename": "sqlglot.executor.env", "qualname": "cast", "kind": "function", "doc": "

\n", "signature": "(this, to):", "funcdef": "def"}, "sqlglot.executor.env.ordered": {"fullname": "sqlglot.executor.env.ordered", "modulename": "sqlglot.executor.env", "qualname": "ordered", "kind": "function", "doc": "

\n", "signature": "(this, desc, nulls_first):", "funcdef": "def"}, "sqlglot.executor.env.interval": {"fullname": "sqlglot.executor.env.interval", "modulename": "sqlglot.executor.env", "qualname": "interval", "kind": "function", "doc": "

\n", "signature": "(this, unit):", "funcdef": "def"}, "sqlglot.executor.python": {"fullname": "sqlglot.executor.python", "modulename": "sqlglot.executor.python", "kind": "module", "doc": "

\n"}, "sqlglot.executor.python.PythonExecutor": {"fullname": "sqlglot.executor.python.PythonExecutor", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor", "kind": "class", "doc": "

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

\n", "signature": "(env=None, tables=None)"}, "sqlglot.executor.python.PythonExecutor.execute": {"fullname": "sqlglot.executor.python.PythonExecutor.execute", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.execute", "kind": "function", "doc": "

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

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.

\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": "

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\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": "

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\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": "

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\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": "

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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='140040242697968'>], List[<MagicMock id='140040242697968'>], Tuple]],\tschema: Optional[<MagicMock id='140040242889392'>] = 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='140040247404352'>,\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='140040245654720'>] = 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='140040241487424'>,\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='140040241373216'>], <MagicMock id='140040241373216'>, 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='140040241254496'>],\t*cols: <MagicMock id='140040241463696'>) -> 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='140040243591008'>, 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='140040241631040'>, 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='140040242102912'>, 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='140040241905232'>],\tfunc_name: str,\t*args: Optional[<MagicMock id='140040241781424'>]) -> 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='140040241714256'>],\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='140040241710320'>,\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='140040241702144'>,\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='140040240205968'>, Iterable[<MagicMock id='140040240205968'>]]):", "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='140040240263232'>,\tupperBound: <MagicMock id='140040240323392'>) -> 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='140040240382832'>) -> 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='140040240671344'>, List[<MagicMock id='140040240671344'>]]) -> 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='140040240499728'>, List[<MagicMock id='140040240499728'>]]) -> 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='140040240799488'>, List[<MagicMock id='140040240799488'>]]) -> 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='140040240728288'>, List[<MagicMock id='140040240728288'>]]) -> 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": "

\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.datediff_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.datediff_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.datediff_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DateDiff) -> str:", "funcdef": "def"}, "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.

\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": "

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

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": "

\n", "signature": "(self, code):", "funcdef": "def"}, "sqlglot.executor.context.Context.eval_tuple": {"fullname": "sqlglot.executor.context.Context.eval_tuple", "modulename": "sqlglot.executor.context", "qualname": "Context.eval_tuple", "kind": "function", "doc": "

\n", "signature": "(self, codes):", "funcdef": "def"}, "sqlglot.executor.context.Context.add_columns": {"fullname": "sqlglot.executor.context.Context.add_columns", "modulename": "sqlglot.executor.context", "qualname": "Context.add_columns", "kind": "function", "doc": "

\n", "signature": "(self, *columns: str) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.table_iter": {"fullname": "sqlglot.executor.context.Context.table_iter", "modulename": "sqlglot.executor.context", "qualname": "Context.table_iter", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttable: str) -> Iterator[Tuple[sqlglot.executor.table.TableIter, sqlglot.executor.context.Context]]:", "funcdef": "def"}, "sqlglot.executor.context.Context.filter": {"fullname": "sqlglot.executor.context.Context.filter", "modulename": "sqlglot.executor.context", "qualname": "Context.filter", "kind": "function", "doc": "

\n", "signature": "(self, condition) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.sort": {"fullname": "sqlglot.executor.context.Context.sort", "modulename": "sqlglot.executor.context", "qualname": "Context.sort", "kind": "function", "doc": "

\n", "signature": "(self, key) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.set_row": {"fullname": "sqlglot.executor.context.Context.set_row", "modulename": "sqlglot.executor.context", "qualname": "Context.set_row", "kind": "function", "doc": "

\n", "signature": "(self, row: Tuple) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.set_index": {"fullname": "sqlglot.executor.context.Context.set_index", "modulename": "sqlglot.executor.context", "qualname": "Context.set_index", "kind": "function", "doc": "

\n", "signature": "(self, index: int) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.set_range": {"fullname": "sqlglot.executor.context.Context.set_range", "modulename": "sqlglot.executor.context", "qualname": "Context.set_range", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> None:", "funcdef": "def"}, "sqlglot.executor.env": {"fullname": "sqlglot.executor.env", "modulename": "sqlglot.executor.env", "kind": "module", "doc": "

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

\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": "

\n", "signature": "(substr, this, position=None):", "funcdef": "def"}, "sqlglot.executor.env.substring": {"fullname": "sqlglot.executor.env.substring", "modulename": "sqlglot.executor.env", "qualname": "substring", "kind": "function", "doc": "

\n", "signature": "(this, start=None, length=None):", "funcdef": "def"}, "sqlglot.executor.env.cast": {"fullname": "sqlglot.executor.env.cast", "modulename": "sqlglot.executor.env", "qualname": "cast", "kind": "function", "doc": "

\n", "signature": "(this, to):", "funcdef": "def"}, "sqlglot.executor.env.ordered": {"fullname": "sqlglot.executor.env.ordered", "modulename": "sqlglot.executor.env", "qualname": "ordered", "kind": "function", "doc": "

\n", "signature": "(this, desc, nulls_first):", "funcdef": "def"}, "sqlglot.executor.env.interval": {"fullname": "sqlglot.executor.env.interval", "modulename": "sqlglot.executor.env", "qualname": "interval", "kind": "function", "doc": "

\n", "signature": "(this, unit):", "funcdef": "def"}, "sqlglot.executor.python": {"fullname": "sqlglot.executor.python", "modulename": "sqlglot.executor.python", "kind": "module", "doc": "

\n"}, "sqlglot.executor.python.PythonExecutor": {"fullname": "sqlglot.executor.python.PythonExecutor", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor", "kind": "class", "doc": "

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

\n", "signature": "(env=None, tables=None)"}, "sqlglot.executor.python.PythonExecutor.execute": {"fullname": "sqlglot.executor.python.PythonExecutor.execute", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.execute", "kind": "function", "doc": "

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

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.

\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.UINT": {"fullname": "sqlglot.expressions.DataType.Type.UINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.UINT: 'UINT'>"}, "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.UTINYINT": {"fullname": "sqlglot.expressions.DataType.Type.UTINYINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UTINYINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.UTINYINT: 'UTINYINT'>"}, "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.USMALLINT": {"fullname": "sqlglot.expressions.DataType.Type.USMALLINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.USMALLINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.USMALLINT: 'USMALLINT'>"}, "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.UBIGINT": {"fullname": "sqlglot.expressions.DataType.Type.UBIGINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UBIGINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.UBIGINT: 'UBIGINT'>"}, "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.BIT": {"fullname": "sqlglot.expressions.DataType.Type.BIT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BIT", "kind": "variable", "doc": "

\n", "default_value": "<Type.BIT: 'BIT'>"}, "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.ArrayOverlaps": {"fullname": "sqlglot.expressions.ArrayOverlaps", "modulename": "sqlglot.expressions", "qualname": "ArrayOverlaps", "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": "Binary, Func"}, "sqlglot.expressions.ArrayContained": {"fullname": "sqlglot.expressions.ArrayContained", "modulename": "sqlglot.expressions", "qualname": "ArrayContained", "kind": "class", "doc": "

\n", "bases": "Binary"}, "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": "

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\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 0x7f5daa3a0ee0>, <function qualify_columns at 0x7f5daa39fd90>, <function expand_laterals at 0x7f5daa39e560>),\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 0x7f5daa39e830>, <function qualify_tables at 0x7f5daa3a0ee0>, <function isolate_table_selects at 0x7f5daa39e7a0>, <function qualify_columns at 0x7f5daa39fd90>, <function expand_laterals at 0x7f5daa39e560>, <function pushdown_projections at 0x7f5daa3a08b0>, <function validate_qualify_columns at 0x7f5daa39fe20>, <function normalize at 0x7f5daa39c550>, <function unnest_subqueries at 0x7f5daa3a1000>, <function expand_multi_table_selects at 0x7f5daa39e710>, <function pushdown_predicates at 0x7f5daa39f910>, <function optimize_joins at 0x7f5daa39f640>, <function eliminate_subqueries at 0x7f5daa39e170>, <function merge_subqueries at 0x7f5daa39eb00>, <function eliminate_joins at 0x7f5daa39c3a0>, <function eliminate_ctes at 0x7f5daa39c280>, <function annotate_types at 0x7f5daa324e50>, <function canonicalize at 0x7f5daa3b7e20>),\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.binary_range_parser": {"fullname": "sqlglot.parser.binary_range_parser", "modulename": "sqlglot.parser", "qualname": "binary_range_parser", "kind": "function", "doc": "

\n", "signature": "(\texpr_type: Type[sqlglot.expressions.Expression]) -> Callable[[sqlglot.parser.Parser, Optional[sqlglot.expressions.Expression]], Optional[sqlglot.expressions.Expression]]:", "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.LT_AT": {"fullname": "sqlglot.tokens.TokenType.LT_AT", "modulename": "sqlglot.tokens", "qualname": "TokenType.LT_AT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LT_AT: 'LT_AT'>"}, "sqlglot.tokens.TokenType.AT_GT": {"fullname": "sqlglot.tokens.TokenType.AT_GT", "modulename": "sqlglot.tokens", "qualname": "TokenType.AT_GT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AT_GT: 'AT_GT'>"}, "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.DAMP": {"fullname": "sqlglot.tokens.TokenType.DAMP", "modulename": "sqlglot.tokens", "qualname": "TokenType.DAMP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DAMP: 'DAMP'>"}, "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": "

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\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.expressions.Select.join": {"tf": 1}, "sqlglot.expressions.Select.where": {"tf": 1}, "sqlglot.expressions.Select.having": {"tf": 1}, "sqlglot.expressions.Select.ctas": {"tf": 1}, "sqlglot.expressions.union": {"tf": 1}, "sqlglot.expressions.intersect": {"tf": 1}, "sqlglot.expressions.except_": {"tf": 1}, "sqlglot.expressions.replace_placeholders": {"tf": 1}, "sqlglot.expressions.func": {"tf": 1.7320508075688772}, "sqlglot.optimizer.optimizer.optimize": {"tf": 1.4142135623730951}, "sqlglot.parser.Parser.expression": {"tf": 1}}, "df": 28}}}}}}}}}, "pipeline": ["trimmer"], "_isPrebuiltIndex": true}; // mirrored in build-search-index.js (part 1) // Also split on html tags. this is a cheap heuristic, but good enough. diff --git a/docs/sqlglot.html b/docs/sqlglot.html index 7121e79..7b69afa 100644 --- a/docs/sqlglot.html +++ b/docs/sqlglot.html @@ -701,7 +701,7 @@ 47 T = t.TypeVar("T", bound=Expression) 48 49 - 50__version__ = "11.3.2" + 50__version__ = "11.3.5" 51 52pretty = False 53"""Whether to format generated SQL by default.""" diff --git a/docs/sqlglot/dataframe/sql.html b/docs/sqlglot/dataframe/sql.html index 39acae5..a95f247 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='139816741409008'>], List[<MagicMock id='139816741409008'>], Tuple]], schema: Optional[<MagicMock id='139816741291056'>] = None, samplingRatio: Optional[float] = None, verifySchema: bool = False) -> sqlglot.dataframe.sql.DataFrame: + createDataFrame( self, data: Sequence[Union[Dict[str, <MagicMock id='140040242697968'>], List[<MagicMock id='140040242697968'>], Tuple]], schema: Optional[<MagicMock id='140040242889392'>] = None, samplingRatio: Optional[float] = None, verifySchema: bool = False) -> sqlglot.dataframe.sql.DataFrame: @@ -1476,7 +1476,7 @@
- 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) + DataFrame( spark: <MagicMock id='140040247404352'>, 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='140040245654720'>] = None, **kwargs) @@ -2214,7 +2214,7 @@ is unlikely to come up.

@operation(Operation.FROM)
def - fillna( self, value: <MagicMock id='139816742311856'>, subset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.DataFrame: + fillna( self, value: <MagicMock id='140040241487424'>, 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='139816742247472'>], <MagicMock id='139816742247472'>, 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='140040241373216'>], <MagicMock id='140040241373216'>, 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='139816742350096'>], *cols: <MagicMock id='139816741969184'>) -> sqlglot.dataframe.sql.DataFrame: + repartition( self, numPartitions: Union[int, <MagicMock id='140040241254496'>], *cols: <MagicMock id='140040241463696'>) -> sqlglot.dataframe.sql.DataFrame: @@ -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='139816743230128'>, sqlglot.expressions.Expression, NoneType]) + Column( expression: Union[<MagicMock id='140040243591008'>, 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='139816742475216'>, sqlglot.expressions.Expression, NoneType]): + ensure_col( cls, value: Union[<MagicMock id='140040241631040'>, 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='139816742744512'>, sqlglot.expressions.Expression]]) -> List[sqlglot.dataframe.sql.Column]: + ensure_cols( cls, args: List[Union[<MagicMock id='140040242102912'>, 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='139816742608448'>], func_name: str, *args: Optional[<MagicMock id='139816742622240'>]) -> sqlglot.dataframe.sql.Column: + invoke_anonymous_function( cls, column: Optional[<MagicMock id='140040241905232'>], func_name: str, *args: Optional[<MagicMock id='140040241781424'>]) -> 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='139816742786080'>], callable_expression: Callable, **kwargs) -> sqlglot.dataframe.sql.Column: + invoke_expression_over_column( cls, column: Optional[<MagicMock id='140040241714256'>], 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='139816742826624'>, **kwargs) -> sqlglot.dataframe.sql.Column: + binary_op( self, klass: Callable, other: <MagicMock id='140040241710320'>, **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='139816742329968'>, **kwargs) -> sqlglot.dataframe.sql.Column: + inverse_binary_op( self, klass: Callable, other: <MagicMock id='140040241702144'>, **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='139816739833744'>, Iterable[<MagicMock id='139816739833744'>]]): + isin( self, *cols: Union[<MagicMock id='140040240205968'>, Iterable[<MagicMock id='140040240205968'>]]): @@ -3842,7 +3842,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - between( self, lowerBound: <MagicMock id='139816739992480'>, upperBound: <MagicMock id='139816740066480'>) -> sqlglot.dataframe.sql.Column: + between( self, lowerBound: <MagicMock id='140040240263232'>, upperBound: <MagicMock id='140040240323392'>) -> 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='139816740107696'>) -> sqlglot.dataframe.sql.Column: + over( self, window: <MagicMock id='140040240382832'>) -> 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='139816740595376'>, List[<MagicMock id='139816740595376'>]]) -> sqlglot.dataframe.sql.WindowSpec: + partitionBy( cls, *cols: Union[<MagicMock id='140040240671344'>, List[<MagicMock id='140040240671344'>]]) -> 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='139816740453728'>, List[<MagicMock id='139816740453728'>]]) -> sqlglot.dataframe.sql.WindowSpec: + orderBy( cls, *cols: Union[<MagicMock id='140040240499728'>, List[<MagicMock id='140040240499728'>]]) -> 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='139816740478720'>, List[<MagicMock id='139816740478720'>]]) -> sqlglot.dataframe.sql.WindowSpec: + partitionBy( self, *cols: Union[<MagicMock id='140040240799488'>, List[<MagicMock id='140040240799488'>]]) -> 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='139816740191104'>, List[<MagicMock id='139816740191104'>]]) -> sqlglot.dataframe.sql.WindowSpec: + orderBy( self, *cols: Union[<MagicMock id='140040240728288'>, List[<MagicMock id='140040240728288'>]]) -> sqlglot.dataframe.sql.WindowSpec: diff --git a/docs/sqlglot/dialects/drill.html b/docs/sqlglot/dialects/drill.html index 375c89d..ded583f 100644 --- a/docs/sqlglot/dialects/drill.html +++ b/docs/sqlglot/dialects/drill.html @@ -91,151 +91,149 @@ 9 create_with_partitions_sql, 10 datestrtodate_sql, 11 format_time_lambda, - 12 no_pivot_sql, - 13 no_trycast_sql, - 14 rename_func, - 15 str_position_sql, - 16 timestrtotime_sql, - 17 ts_or_ds_to_date_sql, - 18) + 12 no_trycast_sql, + 13 rename_func, + 14 str_position_sql, + 15 timestrtotime_sql, + 16 ts_or_ds_to_date_sql, + 17) + 18 19 - 20 - 21def _str_to_time_sql(self: generator.Generator, expression: exp.TsOrDsToDate) -> str: - 22 return f"STRPTIME({self.sql(expression, 'this')}, {self.format_time(expression)})" + 20def _str_to_time_sql(self: generator.Generator, expression: exp.TsOrDsToDate) -> str: + 21 return f"STRPTIME({self.sql(expression, 'this')}, {self.format_time(expression)})" + 22 23 - 24 - 25def _ts_or_ds_to_date_sql(self: generator.Generator, expression: exp.TsOrDsToDate) -> str: - 26 time_format = self.format_time(expression) - 27 if time_format and time_format not in (Drill.time_format, Drill.date_format): - 28 return f"CAST({_str_to_time_sql(self, expression)} AS DATE)" - 29 return f"CAST({self.sql(expression, 'this')} AS DATE)" + 24def _ts_or_ds_to_date_sql(self: generator.Generator, expression: exp.TsOrDsToDate) -> str: + 25 time_format = self.format_time(expression) + 26 if time_format and time_format not in (Drill.time_format, Drill.date_format): + 27 return f"CAST({_str_to_time_sql(self, expression)} AS DATE)" + 28 return f"CAST({self.sql(expression, 'this')} AS DATE)" + 29 30 - 31 - 32def _date_add_sql(kind: str) -> t.Callable[[generator.Generator, exp.DateAdd | exp.DateSub], str]: - 33 def func(self: generator.Generator, expression: exp.DateAdd | exp.DateSub) -> str: - 34 this = self.sql(expression, "this") - 35 unit = exp.Var(this=expression.text("unit").upper() or "DAY") - 36 return ( - 37 f"DATE_{kind}({this}, {self.sql(exp.Interval(this=expression.expression, unit=unit))})" - 38 ) - 39 - 40 return func + 31def _date_add_sql(kind: str) -> t.Callable[[generator.Generator, exp.DateAdd | exp.DateSub], str]: + 32 def func(self: generator.Generator, expression: exp.DateAdd | exp.DateSub) -> str: + 33 this = self.sql(expression, "this") + 34 unit = exp.Var(this=expression.text("unit").upper() or "DAY") + 35 return ( + 36 f"DATE_{kind}({this}, {self.sql(exp.Interval(this=expression.expression, unit=unit))})" + 37 ) + 38 + 39 return func + 40 41 - 42 - 43def _str_to_date(self: generator.Generator, expression: exp.StrToDate) -> str: - 44 this = self.sql(expression, "this") - 45 time_format = self.format_time(expression) - 46 if time_format == Drill.date_format: - 47 return f"CAST({this} AS DATE)" - 48 return f"TO_DATE({this}, {time_format})" + 42def _str_to_date(self: generator.Generator, expression: exp.StrToDate) -> str: + 43 this = self.sql(expression, "this") + 44 time_format = self.format_time(expression) + 45 if time_format == Drill.date_format: + 46 return f"CAST({this} AS DATE)" + 47 return f"TO_DATE({this}, {time_format})" + 48 49 - 50 - 51class Drill(Dialect): - 52 normalize_functions = None - 53 null_ordering = "nulls_are_last" - 54 date_format = "'yyyy-MM-dd'" - 55 dateint_format = "'yyyyMMdd'" - 56 time_format = "'yyyy-MM-dd HH:mm:ss'" - 57 - 58 time_mapping = { - 59 "y": "%Y", - 60 "Y": "%Y", - 61 "YYYY": "%Y", - 62 "yyyy": "%Y", - 63 "YY": "%y", - 64 "yy": "%y", - 65 "MMMM": "%B", - 66 "MMM": "%b", - 67 "MM": "%m", - 68 "M": "%-m", - 69 "dd": "%d", - 70 "d": "%-d", - 71 "HH": "%H", - 72 "H": "%-H", - 73 "hh": "%I", - 74 "h": "%-I", - 75 "mm": "%M", - 76 "m": "%-M", - 77 "ss": "%S", - 78 "s": "%-S", - 79 "SSSSSS": "%f", - 80 "a": "%p", - 81 "DD": "%j", - 82 "D": "%-j", - 83 "E": "%a", - 84 "EE": "%a", - 85 "EEE": "%a", - 86 "EEEE": "%A", - 87 "''T''": "T", - 88 } - 89 - 90 class Tokenizer(tokens.Tokenizer): - 91 QUOTES = ["'"] - 92 IDENTIFIERS = ["`"] - 93 STRING_ESCAPES = ["\\"] - 94 ENCODE = "utf-8" - 95 - 96 class Parser(parser.Parser): - 97 STRICT_CAST = False - 98 - 99 FUNCTIONS = { -100 **parser.Parser.FUNCTIONS, # type: ignore -101 "TO_TIMESTAMP": exp.TimeStrToTime.from_arg_list, -102 "TO_CHAR": format_time_lambda(exp.TimeToStr, "drill"), -103 } -104 -105 class Generator(generator.Generator): -106 TYPE_MAPPING = { -107 **generator.Generator.TYPE_MAPPING, # type: ignore -108 exp.DataType.Type.INT: "INTEGER", -109 exp.DataType.Type.SMALLINT: "INTEGER", -110 exp.DataType.Type.TINYINT: "INTEGER", -111 exp.DataType.Type.BINARY: "VARBINARY", -112 exp.DataType.Type.TEXT: "VARCHAR", -113 exp.DataType.Type.NCHAR: "VARCHAR", -114 exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP", -115 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", -116 exp.DataType.Type.DATETIME: "TIMESTAMP", -117 } -118 -119 PROPERTIES_LOCATION = { -120 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -121 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, -122 } -123 -124 TRANSFORMS = { -125 **generator.Generator.TRANSFORMS, # type: ignore -126 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", -127 exp.ArrayContains: rename_func("REPEATED_CONTAINS"), -128 exp.ArraySize: rename_func("REPEATED_COUNT"), -129 exp.Create: create_with_partitions_sql, -130 exp.DateAdd: _date_add_sql("ADD"), -131 exp.DateStrToDate: datestrtodate_sql, -132 exp.DateSub: _date_add_sql("SUB"), -133 exp.DateToDi: lambda self, e: f"CAST(TO_DATE({self.sql(e, 'this')}, {Drill.dateint_format}) AS INT)", -134 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS VARCHAR), {Drill.dateint_format})", -135 exp.If: lambda self, e: f"`IF`({self.format_args(e.this, e.args.get('true'), e.args.get('false'))})", -136 exp.ILike: lambda self, e: f" {self.sql(e, 'this')} `ILIKE` {self.sql(e, 'expression')}", -137 exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"), -138 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -139 exp.Pivot: no_pivot_sql, -140 exp.RegexpLike: rename_func("REGEXP_MATCHES"), -141 exp.StrPosition: str_position_sql, -142 exp.StrToDate: _str_to_date, -143 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -144 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", -145 exp.TimeStrToTime: timestrtotime_sql, -146 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), -147 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", -148 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), -149 exp.TryCast: no_trycast_sql, -150 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})", -151 exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), -152 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", -153 } -154 -155 def normalize_func(self, name: str) -> str: -156 return name if re.match(exp.SAFE_IDENTIFIER_RE, name) else f"`{name}`" + 50class Drill(Dialect): + 51 normalize_functions = None + 52 null_ordering = "nulls_are_last" + 53 date_format = "'yyyy-MM-dd'" + 54 dateint_format = "'yyyyMMdd'" + 55 time_format = "'yyyy-MM-dd HH:mm:ss'" + 56 + 57 time_mapping = { + 58 "y": "%Y", + 59 "Y": "%Y", + 60 "YYYY": "%Y", + 61 "yyyy": "%Y", + 62 "YY": "%y", + 63 "yy": "%y", + 64 "MMMM": "%B", + 65 "MMM": "%b", + 66 "MM": "%m", + 67 "M": "%-m", + 68 "dd": "%d", + 69 "d": "%-d", + 70 "HH": "%H", + 71 "H": "%-H", + 72 "hh": "%I", + 73 "h": "%-I", + 74 "mm": "%M", + 75 "m": "%-M", + 76 "ss": "%S", + 77 "s": "%-S", + 78 "SSSSSS": "%f", + 79 "a": "%p", + 80 "DD": "%j", + 81 "D": "%-j", + 82 "E": "%a", + 83 "EE": "%a", + 84 "EEE": "%a", + 85 "EEEE": "%A", + 86 "''T''": "T", + 87 } + 88 + 89 class Tokenizer(tokens.Tokenizer): + 90 QUOTES = ["'"] + 91 IDENTIFIERS = ["`"] + 92 STRING_ESCAPES = ["\\"] + 93 ENCODE = "utf-8" + 94 + 95 class Parser(parser.Parser): + 96 STRICT_CAST = False + 97 + 98 FUNCTIONS = { + 99 **parser.Parser.FUNCTIONS, # type: ignore +100 "TO_TIMESTAMP": exp.TimeStrToTime.from_arg_list, +101 "TO_CHAR": format_time_lambda(exp.TimeToStr, "drill"), +102 } +103 +104 class Generator(generator.Generator): +105 TYPE_MAPPING = { +106 **generator.Generator.TYPE_MAPPING, # type: ignore +107 exp.DataType.Type.INT: "INTEGER", +108 exp.DataType.Type.SMALLINT: "INTEGER", +109 exp.DataType.Type.TINYINT: "INTEGER", +110 exp.DataType.Type.BINARY: "VARBINARY", +111 exp.DataType.Type.TEXT: "VARCHAR", +112 exp.DataType.Type.NCHAR: "VARCHAR", +113 exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP", +114 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", +115 exp.DataType.Type.DATETIME: "TIMESTAMP", +116 } +117 +118 PROPERTIES_LOCATION = { +119 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +120 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, +121 } +122 +123 TRANSFORMS = { +124 **generator.Generator.TRANSFORMS, # type: ignore +125 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", +126 exp.ArrayContains: rename_func("REPEATED_CONTAINS"), +127 exp.ArraySize: rename_func("REPEATED_COUNT"), +128 exp.Create: create_with_partitions_sql, +129 exp.DateAdd: _date_add_sql("ADD"), +130 exp.DateStrToDate: datestrtodate_sql, +131 exp.DateSub: _date_add_sql("SUB"), +132 exp.DateToDi: lambda self, e: f"CAST(TO_DATE({self.sql(e, 'this')}, {Drill.dateint_format}) AS INT)", +133 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS VARCHAR), {Drill.dateint_format})", +134 exp.If: lambda self, e: f"`IF`({self.format_args(e.this, e.args.get('true'), e.args.get('false'))})", +135 exp.ILike: lambda self, e: f" {self.sql(e, 'this')} `ILIKE` {self.sql(e, 'expression')}", +136 exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"), +137 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", +138 exp.RegexpLike: rename_func("REGEXP_MATCHES"), +139 exp.StrPosition: str_position_sql, +140 exp.StrToDate: _str_to_date, +141 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +142 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", +143 exp.TimeStrToTime: timestrtotime_sql, +144 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +145 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +146 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), +147 exp.TryCast: no_trycast_sql, +148 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})", +149 exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), +150 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", +151 } +152 +153 def normalize_func(self, name: str) -> str: +154 return name if re.match(exp.SAFE_IDENTIFIER_RE, name) else f"`{name}`"
@@ -251,112 +249,111 @@
-
 52class Drill(Dialect):
- 53    normalize_functions = None
- 54    null_ordering = "nulls_are_last"
- 55    date_format = "'yyyy-MM-dd'"
- 56    dateint_format = "'yyyyMMdd'"
- 57    time_format = "'yyyy-MM-dd HH:mm:ss'"
- 58
- 59    time_mapping = {
- 60        "y": "%Y",
- 61        "Y": "%Y",
- 62        "YYYY": "%Y",
- 63        "yyyy": "%Y",
- 64        "YY": "%y",
- 65        "yy": "%y",
- 66        "MMMM": "%B",
- 67        "MMM": "%b",
- 68        "MM": "%m",
- 69        "M": "%-m",
- 70        "dd": "%d",
- 71        "d": "%-d",
- 72        "HH": "%H",
- 73        "H": "%-H",
- 74        "hh": "%I",
- 75        "h": "%-I",
- 76        "mm": "%M",
- 77        "m": "%-M",
- 78        "ss": "%S",
- 79        "s": "%-S",
- 80        "SSSSSS": "%f",
- 81        "a": "%p",
- 82        "DD": "%j",
- 83        "D": "%-j",
- 84        "E": "%a",
- 85        "EE": "%a",
- 86        "EEE": "%a",
- 87        "EEEE": "%A",
- 88        "''T''": "T",
- 89    }
- 90
- 91    class Tokenizer(tokens.Tokenizer):
- 92        QUOTES = ["'"]
- 93        IDENTIFIERS = ["`"]
- 94        STRING_ESCAPES = ["\\"]
- 95        ENCODE = "utf-8"
- 96
- 97    class Parser(parser.Parser):
- 98        STRICT_CAST = False
- 99
-100        FUNCTIONS = {
-101            **parser.Parser.FUNCTIONS,  # type: ignore
-102            "TO_TIMESTAMP": exp.TimeStrToTime.from_arg_list,
-103            "TO_CHAR": format_time_lambda(exp.TimeToStr, "drill"),
-104        }
-105
-106    class Generator(generator.Generator):
-107        TYPE_MAPPING = {
-108            **generator.Generator.TYPE_MAPPING,  # type: ignore
-109            exp.DataType.Type.INT: "INTEGER",
-110            exp.DataType.Type.SMALLINT: "INTEGER",
-111            exp.DataType.Type.TINYINT: "INTEGER",
-112            exp.DataType.Type.BINARY: "VARBINARY",
-113            exp.DataType.Type.TEXT: "VARCHAR",
-114            exp.DataType.Type.NCHAR: "VARCHAR",
-115            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
-116            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
-117            exp.DataType.Type.DATETIME: "TIMESTAMP",
-118        }
-119
-120        PROPERTIES_LOCATION = {
-121            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
-122            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
-123        }
-124
-125        TRANSFORMS = {
-126            **generator.Generator.TRANSFORMS,  # type: ignore
-127            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
-128            exp.ArrayContains: rename_func("REPEATED_CONTAINS"),
-129            exp.ArraySize: rename_func("REPEATED_COUNT"),
-130            exp.Create: create_with_partitions_sql,
-131            exp.DateAdd: _date_add_sql("ADD"),
-132            exp.DateStrToDate: datestrtodate_sql,
-133            exp.DateSub: _date_add_sql("SUB"),
-134            exp.DateToDi: lambda self, e: f"CAST(TO_DATE({self.sql(e, 'this')}, {Drill.dateint_format}) AS INT)",
-135            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS VARCHAR), {Drill.dateint_format})",
-136            exp.If: lambda self, e: f"`IF`({self.format_args(e.this, e.args.get('true'), e.args.get('false'))})",
-137            exp.ILike: lambda self, e: f" {self.sql(e, 'this')} `ILIKE` {self.sql(e, 'expression')}",
-138            exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"),
-139            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
-140            exp.Pivot: no_pivot_sql,
-141            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
-142            exp.StrPosition: str_position_sql,
-143            exp.StrToDate: _str_to_date,
-144            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
-145            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
-146            exp.TimeStrToTime: timestrtotime_sql,
-147            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
-148            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
-149            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
-150            exp.TryCast: no_trycast_sql,
-151            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})",
-152            exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"),
-153            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)",
-154        }
-155
-156        def normalize_func(self, name: str) -> str:
-157            return name if re.match(exp.SAFE_IDENTIFIER_RE, name) else f"`{name}`"
+            
 51class Drill(Dialect):
+ 52    normalize_functions = None
+ 53    null_ordering = "nulls_are_last"
+ 54    date_format = "'yyyy-MM-dd'"
+ 55    dateint_format = "'yyyyMMdd'"
+ 56    time_format = "'yyyy-MM-dd HH:mm:ss'"
+ 57
+ 58    time_mapping = {
+ 59        "y": "%Y",
+ 60        "Y": "%Y",
+ 61        "YYYY": "%Y",
+ 62        "yyyy": "%Y",
+ 63        "YY": "%y",
+ 64        "yy": "%y",
+ 65        "MMMM": "%B",
+ 66        "MMM": "%b",
+ 67        "MM": "%m",
+ 68        "M": "%-m",
+ 69        "dd": "%d",
+ 70        "d": "%-d",
+ 71        "HH": "%H",
+ 72        "H": "%-H",
+ 73        "hh": "%I",
+ 74        "h": "%-I",
+ 75        "mm": "%M",
+ 76        "m": "%-M",
+ 77        "ss": "%S",
+ 78        "s": "%-S",
+ 79        "SSSSSS": "%f",
+ 80        "a": "%p",
+ 81        "DD": "%j",
+ 82        "D": "%-j",
+ 83        "E": "%a",
+ 84        "EE": "%a",
+ 85        "EEE": "%a",
+ 86        "EEEE": "%A",
+ 87        "''T''": "T",
+ 88    }
+ 89
+ 90    class Tokenizer(tokens.Tokenizer):
+ 91        QUOTES = ["'"]
+ 92        IDENTIFIERS = ["`"]
+ 93        STRING_ESCAPES = ["\\"]
+ 94        ENCODE = "utf-8"
+ 95
+ 96    class Parser(parser.Parser):
+ 97        STRICT_CAST = False
+ 98
+ 99        FUNCTIONS = {
+100            **parser.Parser.FUNCTIONS,  # type: ignore
+101            "TO_TIMESTAMP": exp.TimeStrToTime.from_arg_list,
+102            "TO_CHAR": format_time_lambda(exp.TimeToStr, "drill"),
+103        }
+104
+105    class Generator(generator.Generator):
+106        TYPE_MAPPING = {
+107            **generator.Generator.TYPE_MAPPING,  # type: ignore
+108            exp.DataType.Type.INT: "INTEGER",
+109            exp.DataType.Type.SMALLINT: "INTEGER",
+110            exp.DataType.Type.TINYINT: "INTEGER",
+111            exp.DataType.Type.BINARY: "VARBINARY",
+112            exp.DataType.Type.TEXT: "VARCHAR",
+113            exp.DataType.Type.NCHAR: "VARCHAR",
+114            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
+115            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
+116            exp.DataType.Type.DATETIME: "TIMESTAMP",
+117        }
+118
+119        PROPERTIES_LOCATION = {
+120            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+121            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
+122        }
+123
+124        TRANSFORMS = {
+125            **generator.Generator.TRANSFORMS,  # type: ignore
+126            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
+127            exp.ArrayContains: rename_func("REPEATED_CONTAINS"),
+128            exp.ArraySize: rename_func("REPEATED_COUNT"),
+129            exp.Create: create_with_partitions_sql,
+130            exp.DateAdd: _date_add_sql("ADD"),
+131            exp.DateStrToDate: datestrtodate_sql,
+132            exp.DateSub: _date_add_sql("SUB"),
+133            exp.DateToDi: lambda self, e: f"CAST(TO_DATE({self.sql(e, 'this')}, {Drill.dateint_format}) AS INT)",
+134            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS VARCHAR), {Drill.dateint_format})",
+135            exp.If: lambda self, e: f"`IF`({self.format_args(e.this, e.args.get('true'), e.args.get('false'))})",
+136            exp.ILike: lambda self, e: f" {self.sql(e, 'this')} `ILIKE` {self.sql(e, 'expression')}",
+137            exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"),
+138            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
+139            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
+140            exp.StrPosition: str_position_sql,
+141            exp.StrToDate: _str_to_date,
+142            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
+143            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
+144            exp.TimeStrToTime: timestrtotime_sql,
+145            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
+146            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
+147            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
+148            exp.TryCast: no_trycast_sql,
+149            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})",
+150            exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"),
+151            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)",
+152        }
+153
+154        def normalize_func(self, name: str) -> str:
+155            return name if re.match(exp.SAFE_IDENTIFIER_RE, name) else f"`{name}`"
 
@@ -390,11 +387,11 @@
-
91    class Tokenizer(tokens.Tokenizer):
-92        QUOTES = ["'"]
-93        IDENTIFIERS = ["`"]
-94        STRING_ESCAPES = ["\\"]
-95        ENCODE = "utf-8"
+            
90    class Tokenizer(tokens.Tokenizer):
+91        QUOTES = ["'"]
+92        IDENTIFIERS = ["`"]
+93        STRING_ESCAPES = ["\\"]
+94        ENCODE = "utf-8"
 
@@ -422,14 +419,14 @@
-
 97    class Parser(parser.Parser):
- 98        STRICT_CAST = False
- 99
-100        FUNCTIONS = {
-101            **parser.Parser.FUNCTIONS,  # type: ignore
-102            "TO_TIMESTAMP": exp.TimeStrToTime.from_arg_list,
-103            "TO_CHAR": format_time_lambda(exp.TimeToStr, "drill"),
-104        }
+            
 96    class Parser(parser.Parser):
+ 97        STRICT_CAST = False
+ 98
+ 99        FUNCTIONS = {
+100            **parser.Parser.FUNCTIONS,  # type: ignore
+101            "TO_TIMESTAMP": exp.TimeStrToTime.from_arg_list,
+102            "TO_CHAR": format_time_lambda(exp.TimeToStr, "drill"),
+103        }
 
@@ -486,58 +483,57 @@ Default: "nulls_are_small"
-
106    class Generator(generator.Generator):
-107        TYPE_MAPPING = {
-108            **generator.Generator.TYPE_MAPPING,  # type: ignore
-109            exp.DataType.Type.INT: "INTEGER",
-110            exp.DataType.Type.SMALLINT: "INTEGER",
-111            exp.DataType.Type.TINYINT: "INTEGER",
-112            exp.DataType.Type.BINARY: "VARBINARY",
-113            exp.DataType.Type.TEXT: "VARCHAR",
-114            exp.DataType.Type.NCHAR: "VARCHAR",
-115            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
-116            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
-117            exp.DataType.Type.DATETIME: "TIMESTAMP",
-118        }
-119
-120        PROPERTIES_LOCATION = {
-121            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
-122            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
-123        }
-124
-125        TRANSFORMS = {
-126            **generator.Generator.TRANSFORMS,  # type: ignore
-127            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
-128            exp.ArrayContains: rename_func("REPEATED_CONTAINS"),
-129            exp.ArraySize: rename_func("REPEATED_COUNT"),
-130            exp.Create: create_with_partitions_sql,
-131            exp.DateAdd: _date_add_sql("ADD"),
-132            exp.DateStrToDate: datestrtodate_sql,
-133            exp.DateSub: _date_add_sql("SUB"),
-134            exp.DateToDi: lambda self, e: f"CAST(TO_DATE({self.sql(e, 'this')}, {Drill.dateint_format}) AS INT)",
-135            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS VARCHAR), {Drill.dateint_format})",
-136            exp.If: lambda self, e: f"`IF`({self.format_args(e.this, e.args.get('true'), e.args.get('false'))})",
-137            exp.ILike: lambda self, e: f" {self.sql(e, 'this')} `ILIKE` {self.sql(e, 'expression')}",
-138            exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"),
-139            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
-140            exp.Pivot: no_pivot_sql,
-141            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
-142            exp.StrPosition: str_position_sql,
-143            exp.StrToDate: _str_to_date,
-144            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
-145            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
-146            exp.TimeStrToTime: timestrtotime_sql,
-147            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
-148            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
-149            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
-150            exp.TryCast: no_trycast_sql,
-151            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})",
-152            exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"),
-153            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)",
-154        }
-155
-156        def normalize_func(self, name: str) -> str:
-157            return name if re.match(exp.SAFE_IDENTIFIER_RE, name) else f"`{name}`"
+            
105    class Generator(generator.Generator):
+106        TYPE_MAPPING = {
+107            **generator.Generator.TYPE_MAPPING,  # type: ignore
+108            exp.DataType.Type.INT: "INTEGER",
+109            exp.DataType.Type.SMALLINT: "INTEGER",
+110            exp.DataType.Type.TINYINT: "INTEGER",
+111            exp.DataType.Type.BINARY: "VARBINARY",
+112            exp.DataType.Type.TEXT: "VARCHAR",
+113            exp.DataType.Type.NCHAR: "VARCHAR",
+114            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
+115            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
+116            exp.DataType.Type.DATETIME: "TIMESTAMP",
+117        }
+118
+119        PROPERTIES_LOCATION = {
+120            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+121            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
+122        }
+123
+124        TRANSFORMS = {
+125            **generator.Generator.TRANSFORMS,  # type: ignore
+126            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
+127            exp.ArrayContains: rename_func("REPEATED_CONTAINS"),
+128            exp.ArraySize: rename_func("REPEATED_COUNT"),
+129            exp.Create: create_with_partitions_sql,
+130            exp.DateAdd: _date_add_sql("ADD"),
+131            exp.DateStrToDate: datestrtodate_sql,
+132            exp.DateSub: _date_add_sql("SUB"),
+133            exp.DateToDi: lambda self, e: f"CAST(TO_DATE({self.sql(e, 'this')}, {Drill.dateint_format}) AS INT)",
+134            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS VARCHAR), {Drill.dateint_format})",
+135            exp.If: lambda self, e: f"`IF`({self.format_args(e.this, e.args.get('true'), e.args.get('false'))})",
+136            exp.ILike: lambda self, e: f" {self.sql(e, 'this')} `ILIKE` {self.sql(e, 'expression')}",
+137            exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"),
+138            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
+139            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
+140            exp.StrPosition: str_position_sql,
+141            exp.StrToDate: _str_to_date,
+142            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
+143            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
+144            exp.TimeStrToTime: timestrtotime_sql,
+145            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
+146            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
+147            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
+148            exp.TryCast: no_trycast_sql,
+149            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})",
+150            exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"),
+151            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)",
+152        }
+153
+154        def normalize_func(self, name: str) -> str:
+155            return name if re.match(exp.SAFE_IDENTIFIER_RE, name) else f"`{name}`"
 
@@ -597,8 +593,8 @@ Default: True
-
156        def normalize_func(self, name: str) -> str:
-157            return name if re.match(exp.SAFE_IDENTIFIER_RE, name) else f"`{name}`"
+            
154        def normalize_func(self, name: str) -> str:
+155            return name if re.match(exp.SAFE_IDENTIFIER_RE, name) else f"`{name}`"
 
diff --git a/docs/sqlglot/dialects/duckdb.html b/docs/sqlglot/dialects/duckdb.html index ed0bee0..2dc04a8 100644 --- a/docs/sqlglot/dialects/duckdb.html +++ b/docs/sqlglot/dialects/duckdb.html @@ -163,105 +163,132 @@
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") + 84 "BINARY": TokenType.VARBINARY, + 85 "BPCHAR": TokenType.TEXT, + 86 "BITSTRING": TokenType.BIT, + 87 "CHAR": TokenType.TEXT, + 88 "CHARACTER VARYING": TokenType.TEXT, + 89 "EXCLUDE": TokenType.EXCEPT, + 90 "INT1": TokenType.TINYINT, + 91 "LOGICAL": TokenType.BOOLEAN, + 92 "NUMERIC": TokenType.DOUBLE, + 93 "SIGNED": TokenType.INT, + 94 "STRING": TokenType.VARCHAR, + 95 "UBIGINT": TokenType.UBIGINT, + 96 "UINTEGER": TokenType.UINT, + 97 "USMALLINT": TokenType.USMALLINT, + 98 "UTINYINT": TokenType.UTINYINT, + 99 } +100 +101 class Parser(parser.Parser): +102 FUNCTIONS = { +103 **parser.Parser.FUNCTIONS, # type: ignore +104 "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list, +105 "ARRAY_LENGTH": exp.ArraySize.from_arg_list, +106 "ARRAY_SORT": exp.SortArray.from_arg_list, +107 "ARRAY_REVERSE_SORT": _sort_array_reverse, +108 "EPOCH": exp.TimeToUnix.from_arg_list, +109 "EPOCH_MS": lambda args: exp.UnixToTime( +110 this=exp.Div( +111 this=seq_get(args, 0), +112 expression=exp.Literal.number(1000), +113 ) +114 ), +115 "LIST_SORT": exp.SortArray.from_arg_list, +116 "LIST_REVERSE_SORT": _sort_array_reverse, +117 "LIST_VALUE": exp.Array.from_arg_list, +118 "REGEXP_MATCHES": exp.RegexpLike.from_arg_list, +119 "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"), +120 "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"), +121 "STR_SPLIT": exp.Split.from_arg_list, +122 "STRING_SPLIT": exp.Split.from_arg_list, +123 "STRING_TO_ARRAY": exp.Split.from_arg_list, +124 "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, +125 "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, +126 "STRUCT_PACK": exp.Struct.from_arg_list, +127 "TO_TIMESTAMP": exp.UnixToTime.from_arg_list, +128 "UNNEST": exp.Explode.from_arg_list, +129 } +130 +131 TYPE_TOKENS = { +132 *parser.Parser.TYPE_TOKENS, +133 TokenType.UBIGINT, +134 TokenType.UINT, +135 TokenType.USMALLINT, +136 TokenType.UTINYINT, +137 } +138 +139 class Generator(generator.Generator): +140 STRUCT_DELIMITER = ("(", ")") +141 +142 TRANSFORMS = { +143 **generator.Generator.TRANSFORMS, # type: ignore +144 exp.ApproxDistinct: approx_count_distinct_sql, +145 exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0]) +146 if isinstance(seq_get(e.expressions, 0), exp.Select) +147 else rename_func("LIST_VALUE")(self, e), +148 exp.ArraySize: rename_func("ARRAY_LENGTH"), +149 exp.ArraySort: _array_sort_sql, +150 exp.ArraySum: rename_func("LIST_SUM"), +151 exp.DataType: _datatype_sql, +152 exp.DateAdd: _date_add, +153 exp.DateDiff: lambda self, e: self.func( +154 "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this +155 ), +156 exp.DateStrToDate: datestrtodate_sql, +157 exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)", +158 exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)", +159 exp.Explode: rename_func("UNNEST"), +160 exp.JSONExtract: arrow_json_extract_sql, +161 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, +162 exp.JSONBExtract: arrow_json_extract_sql, +163 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, +164 exp.LogicalOr: rename_func("BOOL_OR"), +165 exp.Pivot: no_pivot_sql, +166 exp.Properties: no_properties_sql, +167 exp.RegexpExtract: _regexp_extract_sql, +168 exp.RegexpLike: rename_func("REGEXP_MATCHES"), +169 exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"), +170 exp.SafeDivide: no_safe_divide_sql, +171 exp.Split: rename_func("STR_SPLIT"), +172 exp.SortArray: _sort_array_sql, +173 exp.StrPosition: str_position_sql, +174 exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)", +175 exp.StrToTime: str_to_time_sql, +176 exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))", +177 exp.Struct: _struct_sql, +178 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", +179 exp.TimeStrToTime: timestrtotime_sql, +180 exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))", +181 exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})", +182 exp.TimeToUnix: rename_func("EPOCH"), +183 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)", +184 exp.TsOrDsAdd: _ts_or_ds_add, +185 exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"), +186 exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})", +187 exp.UnixToTime: rename_func("TO_TIMESTAMP"), +188 exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)", +189 } +190 +191 TYPE_MAPPING = { +192 **generator.Generator.TYPE_MAPPING, # type: ignore +193 exp.DataType.Type.BINARY: "BLOB", +194 exp.DataType.Type.CHAR: "TEXT", +195 exp.DataType.Type.FLOAT: "REAL", +196 exp.DataType.Type.NCHAR: "TEXT", +197 exp.DataType.Type.NVARCHAR: "TEXT", +198 exp.DataType.Type.UINT: "UINTEGER", +199 exp.DataType.Type.VARBINARY: "BLOB", +200 exp.DataType.Type.VARCHAR: "TEXT", +201 } +202 +203 STAR_MAPPING = { +204 **generator.Generator.STAR_MAPPING, +205 "except": "EXCLUDE", +206 } +207 +208 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: +209 return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
@@ -283,105 +310,132 @@ 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") + 85 "BINARY": TokenType.VARBINARY, + 86 "BPCHAR": TokenType.TEXT, + 87 "BITSTRING": TokenType.BIT, + 88 "CHAR": TokenType.TEXT, + 89 "CHARACTER VARYING": TokenType.TEXT, + 90 "EXCLUDE": TokenType.EXCEPT, + 91 "INT1": TokenType.TINYINT, + 92 "LOGICAL": TokenType.BOOLEAN, + 93 "NUMERIC": TokenType.DOUBLE, + 94 "SIGNED": TokenType.INT, + 95 "STRING": TokenType.VARCHAR, + 96 "UBIGINT": TokenType.UBIGINT, + 97 "UINTEGER": TokenType.UINT, + 98 "USMALLINT": TokenType.USMALLINT, + 99 "UTINYINT": TokenType.UTINYINT, +100 } +101 +102 class Parser(parser.Parser): +103 FUNCTIONS = { +104 **parser.Parser.FUNCTIONS, # type: ignore +105 "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list, +106 "ARRAY_LENGTH": exp.ArraySize.from_arg_list, +107 "ARRAY_SORT": exp.SortArray.from_arg_list, +108 "ARRAY_REVERSE_SORT": _sort_array_reverse, +109 "EPOCH": exp.TimeToUnix.from_arg_list, +110 "EPOCH_MS": lambda args: exp.UnixToTime( +111 this=exp.Div( +112 this=seq_get(args, 0), +113 expression=exp.Literal.number(1000), +114 ) +115 ), +116 "LIST_SORT": exp.SortArray.from_arg_list, +117 "LIST_REVERSE_SORT": _sort_array_reverse, +118 "LIST_VALUE": exp.Array.from_arg_list, +119 "REGEXP_MATCHES": exp.RegexpLike.from_arg_list, +120 "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"), +121 "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"), +122 "STR_SPLIT": exp.Split.from_arg_list, +123 "STRING_SPLIT": exp.Split.from_arg_list, +124 "STRING_TO_ARRAY": exp.Split.from_arg_list, +125 "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, +126 "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, +127 "STRUCT_PACK": exp.Struct.from_arg_list, +128 "TO_TIMESTAMP": exp.UnixToTime.from_arg_list, +129 "UNNEST": exp.Explode.from_arg_list, +130 } +131 +132 TYPE_TOKENS = { +133 *parser.Parser.TYPE_TOKENS, +134 TokenType.UBIGINT, +135 TokenType.UINT, +136 TokenType.USMALLINT, +137 TokenType.UTINYINT, +138 } +139 +140 class Generator(generator.Generator): +141 STRUCT_DELIMITER = ("(", ")") +142 +143 TRANSFORMS = { +144 **generator.Generator.TRANSFORMS, # type: ignore +145 exp.ApproxDistinct: approx_count_distinct_sql, +146 exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0]) +147 if isinstance(seq_get(e.expressions, 0), exp.Select) +148 else rename_func("LIST_VALUE")(self, e), +149 exp.ArraySize: rename_func("ARRAY_LENGTH"), +150 exp.ArraySort: _array_sort_sql, +151 exp.ArraySum: rename_func("LIST_SUM"), +152 exp.DataType: _datatype_sql, +153 exp.DateAdd: _date_add, +154 exp.DateDiff: lambda self, e: self.func( +155 "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this +156 ), +157 exp.DateStrToDate: datestrtodate_sql, +158 exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)", +159 exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)", +160 exp.Explode: rename_func("UNNEST"), +161 exp.JSONExtract: arrow_json_extract_sql, +162 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, +163 exp.JSONBExtract: arrow_json_extract_sql, +164 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, +165 exp.LogicalOr: rename_func("BOOL_OR"), +166 exp.Pivot: no_pivot_sql, +167 exp.Properties: no_properties_sql, +168 exp.RegexpExtract: _regexp_extract_sql, +169 exp.RegexpLike: rename_func("REGEXP_MATCHES"), +170 exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"), +171 exp.SafeDivide: no_safe_divide_sql, +172 exp.Split: rename_func("STR_SPLIT"), +173 exp.SortArray: _sort_array_sql, +174 exp.StrPosition: str_position_sql, +175 exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)", +176 exp.StrToTime: str_to_time_sql, +177 exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))", +178 exp.Struct: _struct_sql, +179 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", +180 exp.TimeStrToTime: timestrtotime_sql, +181 exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))", +182 exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})", +183 exp.TimeToUnix: rename_func("EPOCH"), +184 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)", +185 exp.TsOrDsAdd: _ts_or_ds_add, +186 exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"), +187 exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})", +188 exp.UnixToTime: rename_func("TO_TIMESTAMP"), +189 exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)", +190 } +191 +192 TYPE_MAPPING = { +193 **generator.Generator.TYPE_MAPPING, # type: ignore +194 exp.DataType.Type.BINARY: "BLOB", +195 exp.DataType.Type.CHAR: "TEXT", +196 exp.DataType.Type.FLOAT: "REAL", +197 exp.DataType.Type.NCHAR: "TEXT", +198 exp.DataType.Type.NVARCHAR: "TEXT", +199 exp.DataType.Type.UINT: "UINTEGER", +200 exp.DataType.Type.VARBINARY: "BLOB", +201 exp.DataType.Type.VARCHAR: "TEXT", +202 } +203 +204 STAR_MAPPING = { +205 **generator.Generator.STAR_MAPPING, +206 "except": "EXCLUDE", +207 } +208 +209 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: +210 return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
@@ -415,14 +469,27 @@
-
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        }
+            
 80    class Tokenizer(tokens.Tokenizer):
+ 81        KEYWORDS = {
+ 82            **tokens.Tokenizer.KEYWORDS,
+ 83            ":=": TokenType.EQ,
+ 84            "ATTACH": TokenType.COMMAND,
+ 85            "BINARY": TokenType.VARBINARY,
+ 86            "BPCHAR": TokenType.TEXT,
+ 87            "BITSTRING": TokenType.BIT,
+ 88            "CHAR": TokenType.TEXT,
+ 89            "CHARACTER VARYING": TokenType.TEXT,
+ 90            "EXCLUDE": TokenType.EXCEPT,
+ 91            "INT1": TokenType.TINYINT,
+ 92            "LOGICAL": TokenType.BOOLEAN,
+ 93            "NUMERIC": TokenType.DOUBLE,
+ 94            "SIGNED": TokenType.INT,
+ 95            "STRING": TokenType.VARCHAR,
+ 96            "UBIGINT": TokenType.UBIGINT,
+ 97            "UINTEGER": TokenType.UINT,
+ 98            "USMALLINT": TokenType.USMALLINT,
+ 99            "UTINYINT": TokenType.UTINYINT,
+100        }
 
@@ -450,35 +517,43 @@
-
 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        }
+            
102    class Parser(parser.Parser):
+103        FUNCTIONS = {
+104            **parser.Parser.FUNCTIONS,  # type: ignore
+105            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
+106            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
+107            "ARRAY_SORT": exp.SortArray.from_arg_list,
+108            "ARRAY_REVERSE_SORT": _sort_array_reverse,
+109            "EPOCH": exp.TimeToUnix.from_arg_list,
+110            "EPOCH_MS": lambda args: exp.UnixToTime(
+111                this=exp.Div(
+112                    this=seq_get(args, 0),
+113                    expression=exp.Literal.number(1000),
+114                )
+115            ),
+116            "LIST_SORT": exp.SortArray.from_arg_list,
+117            "LIST_REVERSE_SORT": _sort_array_reverse,
+118            "LIST_VALUE": exp.Array.from_arg_list,
+119            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
+120            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
+121            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
+122            "STR_SPLIT": exp.Split.from_arg_list,
+123            "STRING_SPLIT": exp.Split.from_arg_list,
+124            "STRING_TO_ARRAY": exp.Split.from_arg_list,
+125            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
+126            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
+127            "STRUCT_PACK": exp.Struct.from_arg_list,
+128            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
+129            "UNNEST": exp.Explode.from_arg_list,
+130        }
+131
+132        TYPE_TOKENS = {
+133            *parser.Parser.TYPE_TOKENS,
+134            TokenType.UBIGINT,
+135            TokenType.UINT,
+136            TokenType.USMALLINT,
+137            TokenType.UTINYINT,
+138        }
 
@@ -535,71 +610,77 @@ Default: "nulls_are_small"
-
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")
+            
140    class Generator(generator.Generator):
+141        STRUCT_DELIMITER = ("(", ")")
+142
+143        TRANSFORMS = {
+144            **generator.Generator.TRANSFORMS,  # type: ignore
+145            exp.ApproxDistinct: approx_count_distinct_sql,
+146            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
+147            if isinstance(seq_get(e.expressions, 0), exp.Select)
+148            else rename_func("LIST_VALUE")(self, e),
+149            exp.ArraySize: rename_func("ARRAY_LENGTH"),
+150            exp.ArraySort: _array_sort_sql,
+151            exp.ArraySum: rename_func("LIST_SUM"),
+152            exp.DataType: _datatype_sql,
+153            exp.DateAdd: _date_add,
+154            exp.DateDiff: lambda self, e: self.func(
+155                "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this
+156            ),
+157            exp.DateStrToDate: datestrtodate_sql,
+158            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
+159            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
+160            exp.Explode: rename_func("UNNEST"),
+161            exp.JSONExtract: arrow_json_extract_sql,
+162            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
+163            exp.JSONBExtract: arrow_json_extract_sql,
+164            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
+165            exp.LogicalOr: rename_func("BOOL_OR"),
+166            exp.Pivot: no_pivot_sql,
+167            exp.Properties: no_properties_sql,
+168            exp.RegexpExtract: _regexp_extract_sql,
+169            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
+170            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
+171            exp.SafeDivide: no_safe_divide_sql,
+172            exp.Split: rename_func("STR_SPLIT"),
+173            exp.SortArray: _sort_array_sql,
+174            exp.StrPosition: str_position_sql,
+175            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
+176            exp.StrToTime: str_to_time_sql,
+177            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
+178            exp.Struct: _struct_sql,
+179            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
+180            exp.TimeStrToTime: timestrtotime_sql,
+181            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
+182            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
+183            exp.TimeToUnix: rename_func("EPOCH"),
+184            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
+185            exp.TsOrDsAdd: _ts_or_ds_add,
+186            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
+187            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
+188            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
+189            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
+190        }
+191
+192        TYPE_MAPPING = {
+193            **generator.Generator.TYPE_MAPPING,  # type: ignore
+194            exp.DataType.Type.BINARY: "BLOB",
+195            exp.DataType.Type.CHAR: "TEXT",
+196            exp.DataType.Type.FLOAT: "REAL",
+197            exp.DataType.Type.NCHAR: "TEXT",
+198            exp.DataType.Type.NVARCHAR: "TEXT",
+199            exp.DataType.Type.UINT: "UINTEGER",
+200            exp.DataType.Type.VARBINARY: "BLOB",
+201            exp.DataType.Type.VARCHAR: "TEXT",
+202        }
+203
+204        STAR_MAPPING = {
+205            **generator.Generator.STAR_MAPPING,
+206            "except": "EXCLUDE",
+207        }
+208
+209        def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
+210            return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
 
@@ -659,8 +740,8 @@ Default: True
-
182        def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
-183            return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
+            
209        def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
+210            return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
 
diff --git a/docs/sqlglot/dialects/mysql.html b/docs/sqlglot/dialects/mysql.html index 9ca1dd3..254f450 100644 --- a/docs/sqlglot/dialects/mysql.html +++ b/docs/sqlglot/dialects/mysql.html @@ -534,98 +534,99 @@
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 PROPERTIES_LOCATION = { -471 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -472 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, -473 } -474 -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 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 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 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)}" +449 exp.DateDiff: lambda self, e: f"DATEDIFF({self.format_args(e.this, e.expression)})", +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 PROPERTIES_LOCATION = { +472 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +473 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, +474 } +475 +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 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 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 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)}"
@@ -990,98 +991,99 @@ 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 PROPERTIES_LOCATION = { -472 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -473 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, -474 } -475 -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 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 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 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)}" +450 exp.DateDiff: lambda self, e: f"DATEDIFF({self.format_args(e.this, e.expression)})", +451 exp.DateSub: _date_add_sql("SUB"), +452 exp.DateTrunc: _date_trunc_sql, +453 exp.DayOfWeek: rename_func("DAYOFWEEK"), +454 exp.DayOfMonth: rename_func("DAYOFMONTH"), +455 exp.DayOfYear: rename_func("DAYOFYEAR"), +456 exp.WeekOfYear: rename_func("WEEKOFYEAR"), +457 exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""", +458 exp.StrToDate: _str_to_date_sql, +459 exp.StrToTime: _str_to_date_sql, +460 exp.Trim: _trim_sql, +461 exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), +462 exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), +463 exp.StrPosition: strposition_to_locate_sql, +464 } +465 +466 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() +467 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) +468 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) +469 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) +470 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) +471 +472 PROPERTIES_LOCATION = { +473 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +474 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, +475 } +476 +477 def show_sql(self, expression): +478 this = f" {expression.name}" +479 full = " FULL" if expression.args.get("full") else "" +480 global_ = " GLOBAL" if expression.args.get("global") else "" +481 +482 target = self.sql(expression, "target") +483 target = f" {target}" if target else "" +484 if expression.name in {"COLUMNS", "INDEX"}: +485 target = f" FROM{target}" +486 elif expression.name == "GRANTS": +487 target = f" FOR{target}" +488 +489 db = self._prefixed_sql("FROM", expression, "db") +490 +491 like = self._prefixed_sql("LIKE", expression, "like") +492 where = self.sql(expression, "where") +493 +494 types = self.expressions(expression, key="types") +495 types = f" {types}" if types else types +496 query = self._prefixed_sql("FOR QUERY", expression, "query") +497 +498 if expression.name == "PROFILE": +499 offset = self._prefixed_sql("OFFSET", expression, "offset") +500 limit = self._prefixed_sql("LIMIT", expression, "limit") +501 else: +502 offset = "" +503 limit = self._oldstyle_limit_sql(expression) +504 +505 log = self._prefixed_sql("IN", expression, "log") +506 position = self._prefixed_sql("FROM", expression, "position") +507 +508 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") +509 +510 if expression.name == "ENGINE": +511 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" +512 else: +513 mutex_or_status = "" +514 +515 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" +516 +517 def _prefixed_sql(self, prefix, expression, arg): +518 sql = self.sql(expression, arg) +519 if not sql: +520 return "" +521 return f" {prefix} {sql}" +522 +523 def _oldstyle_limit_sql(self, expression): +524 limit = self.sql(expression, "limit") +525 offset = self.sql(expression, "offset") +526 if limit: +527 limit_offset = f"{offset}, {limit}" if offset else limit +528 return f" LIMIT {limit_offset}" +529 return "" +530 +531 def setitem_sql(self, expression): +532 kind = self.sql(expression, "kind") +533 kind = f"{kind} " if kind else "" +534 this = self.sql(expression, "this") +535 expressions = self.expressions(expression) +536 collate = self.sql(expression, "collate") +537 collate = f" COLLATE {collate}" if collate else "" +538 global_ = "GLOBAL " if expression.args.get("global") else "" +539 return f"{global_}{kind}{this}{expressions}{collate}" +540 +541 def set_sql(self, expression): +542 return f"SET {self.expressions(expression)}"
@@ -1527,98 +1529,99 @@ Default: "nulls_are_small" 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 PROPERTIES_LOCATION = { -472 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -473 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, -474 } -475 -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 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 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 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)}" +450 exp.DateDiff: lambda self, e: f"DATEDIFF({self.format_args(e.this, e.expression)})", +451 exp.DateSub: _date_add_sql("SUB"), +452 exp.DateTrunc: _date_trunc_sql, +453 exp.DayOfWeek: rename_func("DAYOFWEEK"), +454 exp.DayOfMonth: rename_func("DAYOFMONTH"), +455 exp.DayOfYear: rename_func("DAYOFYEAR"), +456 exp.WeekOfYear: rename_func("WEEKOFYEAR"), +457 exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""", +458 exp.StrToDate: _str_to_date_sql, +459 exp.StrToTime: _str_to_date_sql, +460 exp.Trim: _trim_sql, +461 exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), +462 exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), +463 exp.StrPosition: strposition_to_locate_sql, +464 } +465 +466 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() +467 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) +468 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) +469 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) +470 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) +471 +472 PROPERTIES_LOCATION = { +473 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +474 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, +475 } +476 +477 def show_sql(self, expression): +478 this = f" {expression.name}" +479 full = " FULL" if expression.args.get("full") else "" +480 global_ = " GLOBAL" if expression.args.get("global") else "" +481 +482 target = self.sql(expression, "target") +483 target = f" {target}" if target else "" +484 if expression.name in {"COLUMNS", "INDEX"}: +485 target = f" FROM{target}" +486 elif expression.name == "GRANTS": +487 target = f" FOR{target}" +488 +489 db = self._prefixed_sql("FROM", expression, "db") +490 +491 like = self._prefixed_sql("LIKE", expression, "like") +492 where = self.sql(expression, "where") +493 +494 types = self.expressions(expression, key="types") +495 types = f" {types}" if types else types +496 query = self._prefixed_sql("FOR QUERY", expression, "query") +497 +498 if expression.name == "PROFILE": +499 offset = self._prefixed_sql("OFFSET", expression, "offset") +500 limit = self._prefixed_sql("LIMIT", expression, "limit") +501 else: +502 offset = "" +503 limit = self._oldstyle_limit_sql(expression) +504 +505 log = self._prefixed_sql("IN", expression, "log") +506 position = self._prefixed_sql("FROM", expression, "position") +507 +508 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") +509 +510 if expression.name == "ENGINE": +511 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" +512 else: +513 mutex_or_status = "" +514 +515 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" +516 +517 def _prefixed_sql(self, prefix, expression, arg): +518 sql = self.sql(expression, arg) +519 if not sql: +520 return "" +521 return f" {prefix} {sql}" +522 +523 def _oldstyle_limit_sql(self, expression): +524 limit = self.sql(expression, "limit") +525 offset = self.sql(expression, "offset") +526 if limit: +527 limit_offset = f"{offset}, {limit}" if offset else limit +528 return f" LIMIT {limit_offset}" +529 return "" +530 +531 def setitem_sql(self, expression): +532 kind = self.sql(expression, "kind") +533 kind = f"{kind} " if kind else "" +534 this = self.sql(expression, "this") +535 expressions = self.expressions(expression) +536 collate = self.sql(expression, "collate") +537 collate = f" COLLATE {collate}" if collate else "" +538 global_ = "GLOBAL " if expression.args.get("global") else "" +539 return f"{global_}{kind}{this}{expressions}{collate}" +540 +541 def set_sql(self, expression): +542 return f"SET {self.expressions(expression)}"
@@ -1678,45 +1681,45 @@ Default: True
-
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            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            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            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}"
+            
477        def show_sql(self, expression):
+478            this = f" {expression.name}"
+479            full = " FULL" if expression.args.get("full") else ""
+480            global_ = " GLOBAL" if expression.args.get("global") else ""
+481
+482            target = self.sql(expression, "target")
+483            target = f" {target}" if target else ""
+484            if expression.name in {"COLUMNS", "INDEX"}:
+485                target = f" FROM{target}"
+486            elif expression.name == "GRANTS":
+487                target = f" FOR{target}"
+488
+489            db = self._prefixed_sql("FROM", expression, "db")
+490
+491            like = self._prefixed_sql("LIKE", expression, "like")
+492            where = self.sql(expression, "where")
+493
+494            types = self.expressions(expression, key="types")
+495            types = f" {types}" if types else types
+496            query = self._prefixed_sql("FOR QUERY", expression, "query")
+497
+498            if expression.name == "PROFILE":
+499                offset = self._prefixed_sql("OFFSET", expression, "offset")
+500                limit = self._prefixed_sql("LIMIT", expression, "limit")
+501            else:
+502                offset = ""
+503                limit = self._oldstyle_limit_sql(expression)
+504
+505            log = self._prefixed_sql("IN", expression, "log")
+506            position = self._prefixed_sql("FROM", expression, "position")
+507
+508            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
+509
+510            if expression.name == "ENGINE":
+511                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
+512            else:
+513                mutex_or_status = ""
+514
+515            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
 
@@ -1734,15 +1737,15 @@ Default: True
-
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}"
+            
531        def setitem_sql(self, expression):
+532            kind = self.sql(expression, "kind")
+533            kind = f"{kind} " if kind else ""
+534            this = self.sql(expression, "this")
+535            expressions = self.expressions(expression)
+536            collate = self.sql(expression, "collate")
+537            collate = f" COLLATE {collate}" if collate else ""
+538            global_ = "GLOBAL " if expression.args.get("global") else ""
+539            return f"{global_}{kind}{this}{expressions}{collate}"
 
@@ -1760,8 +1763,8 @@ Default: True
-
540        def set_sql(self, expression):
-541            return f"SET {self.expressions(expression)}"
+            
541        def set_sql(self, expression):
+542            return f"SET {self.expressions(expression)}"
 
diff --git a/docs/sqlglot/dialects/postgres.html b/docs/sqlglot/dialects/postgres.html index 41f6d27..fedf906 100644 --- a/docs/sqlglot/dialects/postgres.html +++ b/docs/sqlglot/dialects/postgres.html @@ -94,312 +94,328 @@
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 + 18from sqlglot.parser import binary_range_parser + 19from sqlglot.tokens import TokenType + 20from sqlglot.transforms import delegate, preprocess + 21 + 22DATE_DIFF_FACTOR = { + 23 "MICROSECOND": " * 1000000", + 24 "MILLISECOND": " * 1000", + 25 "SECOND": "", + 26 "MINUTE": " / 60", + 27 "HOUR": " / 3600", + 28 "DAY": " / 86400", + 29} 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 + 31 + 32def _date_add_sql(kind): + 33 def func(self, expression): + 34 from sqlglot.optimizer.simplify import simplify + 35 + 36 this = self.sql(expression, "this") + 37 unit = self.sql(expression, "unit") + 38 expression = simplify(expression.args["expression"]) + 39 + 40 if not isinstance(expression, exp.Literal): + 41 self.unsupported("Cannot add non literal") + 42 + 43 expression = expression.copy() + 44 expression.args["is_string"] = True + 45 return f"{this} {kind} {self.sql(exp.Interval(this=expression, unit=unit))}" + 46 + 47 return func 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 + 49 + 50def _date_diff_sql(self, expression): + 51 unit = expression.text("unit").upper() + 52 factor = DATE_DIFF_FACTOR.get(unit) + 53 + 54 end = f"CAST({expression.this} AS TIMESTAMP)" + 55 start = f"CAST({expression.expression} AS TIMESTAMP)" + 56 + 57 if factor is not None: + 58 return f"CAST(EXTRACT(epoch FROM {end} - {start}){factor} AS BIGINT)" + 59 + 60 age = f"AGE({end}, {start})" + 61 + 62 if unit == "WEEK": + 63 unit = f"EXTRACT(year FROM {age}) * 48 + EXTRACT(month FROM {age}) * 4 + EXTRACT(day FROM {age}) / 7" + 64 elif unit == "MONTH": + 65 unit = f"EXTRACT(year FROM {age}) * 12 + EXTRACT(month FROM {age})" + 66 elif unit == "QUARTER": + 67 unit = f"EXTRACT(year FROM {age}) * 4 + EXTRACT(month FROM {age}) / 3" + 68 elif unit == "YEAR": + 69 unit = f"EXTRACT(year FROM {age})" + 70 else: + 71 unit = age + 72 + 73 return f"CAST({unit} AS BIGINT)" 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 + 75 + 76def _substring_sql(self, expression): + 77 this = self.sql(expression, "this") + 78 start = self.sql(expression, "start") + 79 length = self.sql(expression, "length") + 80 + 81 from_part = f" FROM {start}" if start else "" + 82 for_part = f" FOR {length}" if length else "" + 83 + 84 return f"SUBSTRING({this}{from_part}{for_part})" 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 + 86 + 87def _string_agg_sql(self, expression): + 88 expression = expression.copy() + 89 separator = expression.args.get("separator") or exp.Literal.string(",") + 90 + 91 order = "" + 92 this = expression.this + 93 if isinstance(this, exp.Order): + 94 if this.this: + 95 this = this.this + 96 this.pop() + 97 order = self.sql(expression.this) # Order has a leading space + 98 + 99 return f"STRING_AGG({self.format_args(this, separator)}{order})" 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 +101 +102def _datatype_sql(self, expression): +103 if expression.this == exp.DataType.Type.ARRAY: +104 return f"{self.expressions(expression, flat=True)}[]" +105 return self.datatype_sql(expression) 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 +107 +108def _auto_increment_to_serial(expression): +109 auto = expression.find(exp.AutoIncrementColumnConstraint) +110 +111 if auto: +112 expression = expression.copy() +113 expression.args["constraints"].remove(auto.parent) +114 kind = expression.args["kind"] +115 +116 if kind.this == exp.DataType.Type.INT: +117 kind.replace(exp.DataType(this=exp.DataType.Type.SERIAL)) +118 elif kind.this == exp.DataType.Type.SMALLINT: +119 kind.replace(exp.DataType(this=exp.DataType.Type.SMALLSERIAL)) +120 elif kind.this == exp.DataType.Type.BIGINT: +121 kind.replace(exp.DataType(this=exp.DataType.Type.BIGSERIAL)) +122 +123 return expression 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 +125 +126def _serial_to_generated(expression): +127 kind = expression.args["kind"] +128 +129 if kind.this == exp.DataType.Type.SERIAL: +130 data_type = exp.DataType(this=exp.DataType.Type.INT) +131 elif kind.this == exp.DataType.Type.SMALLSERIAL: +132 data_type = exp.DataType(this=exp.DataType.Type.SMALLINT) +133 elif kind.this == exp.DataType.Type.BIGSERIAL: +134 data_type = exp.DataType(this=exp.DataType.Type.BIGINT) +135 else: +136 data_type = None +137 +138 if data_type: +139 expression = expression.copy() +140 expression.args["kind"].replace(data_type) +141 constraints = expression.args["constraints"] +142 generated = exp.ColumnConstraint(kind=exp.GeneratedAsIdentityColumnConstraint(this=False)) +143 notnull = exp.ColumnConstraint(kind=exp.NotNullColumnConstraint()) +144 if notnull not in constraints: +145 constraints.insert(0, notnull) +146 if generated not in constraints: +147 constraints.insert(0, generated) +148 +149 return expression 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 +151 +152def _generate_series(args): +153 # The goal is to convert step values like '1 day' or INTERVAL '1 day' into INTERVAL '1' day +154 step = seq_get(args, 2) +155 +156 if step is None: +157 # Postgres allows calls with just two arguments -- the "step" argument defaults to 1 +158 return exp.GenerateSeries.from_arg_list(args) +159 +160 if step.is_string: +161 args[2] = exp.to_interval(step.this) +162 elif isinstance(step, exp.Interval) and not step.args.get("unit"): +163 args[2] = exp.to_interval(step.this.this) +164 +165 return exp.GenerateSeries.from_arg_list(args) 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 +167 +168def _to_timestamp(args): +169 # TO_TIMESTAMP accepts either a single double argument or (text, text) +170 if len(args) == 1: +171 # https://www.postgresql.org/docs/current/functions-datetime.html#FUNCTIONS-DATETIME-TABLE +172 return exp.UnixToTime.from_arg_list(args) +173 # https://www.postgresql.org/docs/current/functions-formatting.html +174 return format_time_lambda(exp.StrToTime, "postgres")(args) 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 +176 +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 "@>": TokenType.AT_GT, +224 "<@": TokenType.LT_AT, +225 "BEGIN": TokenType.COMMAND, +226 "BEGIN TRANSACTION": TokenType.BEGIN, +227 "BIGSERIAL": TokenType.BIGSERIAL, +228 "CHARACTER VARYING": TokenType.VARCHAR, +229 "DECLARE": TokenType.COMMAND, +230 "DO": TokenType.COMMAND, +231 "HSTORE": TokenType.HSTORE, +232 "JSONB": TokenType.JSONB, +233 "REFRESH": TokenType.COMMAND, +234 "REINDEX": TokenType.COMMAND, +235 "RESET": TokenType.COMMAND, +236 "RETURNING": TokenType.RETURNING, +237 "REVOKE": TokenType.COMMAND, +238 "SERIAL": TokenType.SERIAL, +239 "SMALLSERIAL": TokenType.SMALLSERIAL, +240 "TEMP": TokenType.TEMPORARY, +241 "UUID": TokenType.UUID, +242 "CSTRING": TokenType.PSEUDO_TYPE, +243 } +244 +245 SINGLE_TOKENS = { +246 **tokens.Tokenizer.SINGLE_TOKENS, +247 "$": TokenType.PARAMETER, +248 } 249 -250 FUNCTIONS = { -251 **parser.Parser.FUNCTIONS, # type: ignore -252 "NOW": exp.CurrentTimestamp.from_arg_list, -253 "TO_TIMESTAMP": _to_timestamp, -254 "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"), -255 "GENERATE_SERIES": _generate_series, -256 } -257 -258 BITWISE = { -259 **parser.Parser.BITWISE, # type: ignore -260 TokenType.HASH: exp.BitwiseXor, -261 } -262 -263 FACTOR = {**parser.Parser.FACTOR, TokenType.CARET: exp.Pow} -264 -265 class Generator(generator.Generator): -266 LOCKING_READS_SUPPORTED = True -267 PARAMETER_TOKEN = "$" -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, -305 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -306 exp.Substring: _substring_sql, -307 exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)", -308 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", -309 exp.TableSample: no_tablesample_sql, -310 exp.Trim: trim_sql, -311 exp.TryCast: no_trycast_sql, -312 exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})", -313 exp.DataType: _datatype_sql, -314 exp.GroupConcat: _string_agg_sql, -315 exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})" -316 if isinstance(seq_get(e.expressions, 0), exp.Select) -317 else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]", -318 } -319 -320 PROPERTIES_LOCATION = { -321 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -322 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, -323 } +250 class Parser(parser.Parser): +251 STRICT_CAST = False +252 +253 FUNCTIONS = { +254 **parser.Parser.FUNCTIONS, # type: ignore +255 "NOW": exp.CurrentTimestamp.from_arg_list, +256 "TO_TIMESTAMP": _to_timestamp, +257 "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"), +258 "GENERATE_SERIES": _generate_series, +259 } +260 +261 BITWISE = { +262 **parser.Parser.BITWISE, # type: ignore +263 TokenType.HASH: exp.BitwiseXor, +264 } +265 +266 FACTOR = { +267 **parser.Parser.FACTOR, +268 TokenType.CARET: exp.Pow, +269 } +270 +271 RANGE_PARSERS = { +272 **parser.Parser.RANGE_PARSERS, # type: ignore +273 TokenType.DAMP: binary_range_parser(exp.ArrayOverlaps), +274 TokenType.AT_GT: binary_range_parser(exp.ArrayContains), +275 TokenType.LT_AT: binary_range_parser(exp.ArrayContained), +276 } +277 +278 class Generator(generator.Generator): +279 LOCKING_READS_SUPPORTED = True +280 PARAMETER_TOKEN = "$" +281 +282 TYPE_MAPPING = { +283 **generator.Generator.TYPE_MAPPING, # type: ignore +284 exp.DataType.Type.TINYINT: "SMALLINT", +285 exp.DataType.Type.FLOAT: "REAL", +286 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", +287 exp.DataType.Type.BINARY: "BYTEA", +288 exp.DataType.Type.VARBINARY: "BYTEA", +289 exp.DataType.Type.DATETIME: "TIMESTAMP", +290 } +291 +292 TRANSFORMS = { +293 **generator.Generator.TRANSFORMS, # type: ignore +294 exp.BitwiseXor: lambda self, e: self.binary(e, "#"), +295 exp.ColumnDef: preprocess( +296 [ +297 _auto_increment_to_serial, +298 _serial_to_generated, +299 ], +300 delegate("columndef_sql"), +301 ), +302 exp.JSONExtract: arrow_json_extract_sql, +303 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, +304 exp.JSONBExtract: lambda self, e: self.binary(e, "#>"), +305 exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"), +306 exp.JSONBContains: lambda self, e: self.binary(e, "?"), +307 exp.Pow: lambda self, e: self.binary(e, "^"), +308 exp.CurrentDate: no_paren_current_date_sql, +309 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", +310 exp.DateAdd: _date_add_sql("+"), +311 exp.DateSub: _date_add_sql("-"), +312 exp.DateDiff: _date_diff_sql, +313 exp.LogicalOr: rename_func("BOOL_OR"), +314 exp.Min: min_or_least, +315 exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"), +316 exp.ArrayContains: lambda self, e: self.binary(e, "@>"), +317 exp.ArrayContained: lambda self, e: self.binary(e, "<@"), +318 exp.RegexpLike: lambda self, e: self.binary(e, "~"), +319 exp.RegexpILike: lambda self, e: self.binary(e, "~*"), +320 exp.StrPosition: str_position_sql, +321 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +322 exp.Substring: _substring_sql, +323 exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)", +324 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +325 exp.TableSample: no_tablesample_sql, +326 exp.Trim: trim_sql, +327 exp.TryCast: no_trycast_sql, +328 exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})", +329 exp.DataType: _datatype_sql, +330 exp.GroupConcat: _string_agg_sql, +331 exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})" +332 if isinstance(seq_get(e.expressions, 0), exp.Select) +333 else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]", +334 } +335 +336 PROPERTIES_LOCATION = { +337 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +338 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, +339 }
@@ -415,154 +431,169 @@
-
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
+            
178class Postgres(Dialect):
+179    null_ordering = "nulls_are_large"
+180    time_format = "'YYYY-MM-DD HH24:MI:SS'"
+181    time_mapping = {
+182        "AM": "%p",
+183        "PM": "%p",
+184        "D": "%u",  # 1-based day of week
+185        "DD": "%d",  # day of month
+186        "DDD": "%j",  # zero padded day of year
+187        "FMDD": "%-d",  # - is no leading zero for Python; same for FM in postgres
+188        "FMDDD": "%-j",  # day of year
+189        "FMHH12": "%-I",  # 9
+190        "FMHH24": "%-H",  # 9
+191        "FMMI": "%-M",  # Minute
+192        "FMMM": "%-m",  # 1
+193        "FMSS": "%-S",  # Second
+194        "HH12": "%I",  # 09
+195        "HH24": "%H",  # 09
+196        "MI": "%M",  # zero padded minute
+197        "MM": "%m",  # 01
+198        "OF": "%z",  # utc offset
+199        "SS": "%S",  # zero padded second
+200        "TMDay": "%A",  # TM is locale dependent
+201        "TMDy": "%a",
+202        "TMMon": "%b",  # Sep
+203        "TMMonth": "%B",  # September
+204        "TZ": "%Z",  # uppercase timezone name
+205        "US": "%f",  # zero padded microsecond
+206        "WW": "%U",  # 1-based week of year
+207        "YY": "%y",  # 15
+208        "YYYY": "%Y",  # 2015
+209    }
+210
+211    class Tokenizer(tokens.Tokenizer):
+212        QUOTES = ["'", "$$"]
+213
+214        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
+215        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
+216        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
+217
+218        KEYWORDS = {
+219            **tokens.Tokenizer.KEYWORDS,
+220            "~~": TokenType.LIKE,
+221            "~~*": TokenType.ILIKE,
+222            "~*": TokenType.IRLIKE,
+223            "~": TokenType.RLIKE,
+224            "@>": TokenType.AT_GT,
+225            "<@": TokenType.LT_AT,
+226            "BEGIN": TokenType.COMMAND,
+227            "BEGIN TRANSACTION": TokenType.BEGIN,
+228            "BIGSERIAL": TokenType.BIGSERIAL,
+229            "CHARACTER VARYING": TokenType.VARCHAR,
+230            "DECLARE": TokenType.COMMAND,
+231            "DO": TokenType.COMMAND,
+232            "HSTORE": TokenType.HSTORE,
+233            "JSONB": TokenType.JSONB,
+234            "REFRESH": TokenType.COMMAND,
+235            "REINDEX": TokenType.COMMAND,
+236            "RESET": TokenType.COMMAND,
+237            "RETURNING": TokenType.RETURNING,
+238            "REVOKE": TokenType.COMMAND,
+239            "SERIAL": TokenType.SERIAL,
+240            "SMALLSERIAL": TokenType.SMALLSERIAL,
+241            "TEMP": TokenType.TEMPORARY,
+242            "UUID": TokenType.UUID,
+243            "CSTRING": TokenType.PSEUDO_TYPE,
+244        }
+245
+246        SINGLE_TOKENS = {
+247            **tokens.Tokenizer.SINGLE_TOKENS,
+248            "$": TokenType.PARAMETER,
+249        }
 250
-251        FUNCTIONS = {
-252            **parser.Parser.FUNCTIONS,  # type: ignore
-253            "NOW": exp.CurrentTimestamp.from_arg_list,
-254            "TO_TIMESTAMP": _to_timestamp,
-255            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
-256            "GENERATE_SERIES": _generate_series,
-257        }
-258
-259        BITWISE = {
-260            **parser.Parser.BITWISE,  # type: ignore
-261            TokenType.HASH: exp.BitwiseXor,
-262        }
-263
-264        FACTOR = {**parser.Parser.FACTOR, TokenType.CARET: exp.Pow}
-265
-266    class Generator(generator.Generator):
-267        LOCKING_READS_SUPPORTED = True
-268        PARAMETER_TOKEN = "$"
-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,
-306            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
-307            exp.Substring: _substring_sql,
-308            exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)",
-309            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
-310            exp.TableSample: no_tablesample_sql,
-311            exp.Trim: trim_sql,
-312            exp.TryCast: no_trycast_sql,
-313            exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})",
-314            exp.DataType: _datatype_sql,
-315            exp.GroupConcat: _string_agg_sql,
-316            exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})"
-317            if isinstance(seq_get(e.expressions, 0), exp.Select)
-318            else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]",
-319        }
-320
-321        PROPERTIES_LOCATION = {
-322            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
-323            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
-324        }
+251    class Parser(parser.Parser):
+252        STRICT_CAST = False
+253
+254        FUNCTIONS = {
+255            **parser.Parser.FUNCTIONS,  # type: ignore
+256            "NOW": exp.CurrentTimestamp.from_arg_list,
+257            "TO_TIMESTAMP": _to_timestamp,
+258            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
+259            "GENERATE_SERIES": _generate_series,
+260        }
+261
+262        BITWISE = {
+263            **parser.Parser.BITWISE,  # type: ignore
+264            TokenType.HASH: exp.BitwiseXor,
+265        }
+266
+267        FACTOR = {
+268            **parser.Parser.FACTOR,
+269            TokenType.CARET: exp.Pow,
+270        }
+271
+272        RANGE_PARSERS = {
+273            **parser.Parser.RANGE_PARSERS,  # type: ignore
+274            TokenType.DAMP: binary_range_parser(exp.ArrayOverlaps),
+275            TokenType.AT_GT: binary_range_parser(exp.ArrayContains),
+276            TokenType.LT_AT: binary_range_parser(exp.ArrayContained),
+277        }
+278
+279    class Generator(generator.Generator):
+280        LOCKING_READS_SUPPORTED = True
+281        PARAMETER_TOKEN = "$"
+282
+283        TYPE_MAPPING = {
+284            **generator.Generator.TYPE_MAPPING,  # type: ignore
+285            exp.DataType.Type.TINYINT: "SMALLINT",
+286            exp.DataType.Type.FLOAT: "REAL",
+287            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
+288            exp.DataType.Type.BINARY: "BYTEA",
+289            exp.DataType.Type.VARBINARY: "BYTEA",
+290            exp.DataType.Type.DATETIME: "TIMESTAMP",
+291        }
+292
+293        TRANSFORMS = {
+294            **generator.Generator.TRANSFORMS,  # type: ignore
+295            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
+296            exp.ColumnDef: preprocess(
+297                [
+298                    _auto_increment_to_serial,
+299                    _serial_to_generated,
+300                ],
+301                delegate("columndef_sql"),
+302            ),
+303            exp.JSONExtract: arrow_json_extract_sql,
+304            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
+305            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
+306            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
+307            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
+308            exp.Pow: lambda self, e: self.binary(e, "^"),
+309            exp.CurrentDate: no_paren_current_date_sql,
+310            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
+311            exp.DateAdd: _date_add_sql("+"),
+312            exp.DateSub: _date_add_sql("-"),
+313            exp.DateDiff: _date_diff_sql,
+314            exp.LogicalOr: rename_func("BOOL_OR"),
+315            exp.Min: min_or_least,
+316            exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"),
+317            exp.ArrayContains: lambda self, e: self.binary(e, "@>"),
+318            exp.ArrayContained: lambda self, e: self.binary(e, "<@"),
+319            exp.RegexpLike: lambda self, e: self.binary(e, "~"),
+320            exp.RegexpILike: lambda self, e: self.binary(e, "~*"),
+321            exp.StrPosition: str_position_sql,
+322            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
+323            exp.Substring: _substring_sql,
+324            exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)",
+325            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
+326            exp.TableSample: no_tablesample_sql,
+327            exp.Trim: trim_sql,
+328            exp.TryCast: no_trycast_sql,
+329            exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})",
+330            exp.DataType: _datatype_sql,
+331            exp.GroupConcat: _string_agg_sql,
+332            exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})"
+333            if isinstance(seq_get(e.expressions, 0), exp.Select)
+334            else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]",
+335        }
+336
+337        PROPERTIES_LOCATION = {
+338            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+339            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
+340        }
 
@@ -596,43 +627,45 @@
-
210    class Tokenizer(tokens.Tokenizer):
-211        QUOTES = ["'", "$$"]
-212
-213        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
-214        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
-215        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
-216
-217        KEYWORDS = {
-218            **tokens.Tokenizer.KEYWORDS,
-219            "~~": TokenType.LIKE,
-220            "~~*": TokenType.ILIKE,
-221            "~*": TokenType.IRLIKE,
-222            "~": TokenType.RLIKE,
-223            "BEGIN": TokenType.COMMAND,
-224            "BEGIN TRANSACTION": TokenType.BEGIN,
-225            "BIGSERIAL": TokenType.BIGSERIAL,
-226            "CHARACTER VARYING": TokenType.VARCHAR,
-227            "DECLARE": TokenType.COMMAND,
-228            "DO": TokenType.COMMAND,
-229            "HSTORE": TokenType.HSTORE,
-230            "JSONB": TokenType.JSONB,
-231            "REFRESH": TokenType.COMMAND,
-232            "REINDEX": TokenType.COMMAND,
-233            "RESET": TokenType.COMMAND,
-234            "RETURNING": TokenType.RETURNING,
-235            "REVOKE": TokenType.COMMAND,
-236            "SERIAL": TokenType.SERIAL,
-237            "SMALLSERIAL": TokenType.SMALLSERIAL,
-238            "TEMP": TokenType.TEMPORARY,
-239            "UUID": TokenType.UUID,
-240            "CSTRING": TokenType.PSEUDO_TYPE,
-241        }
-242
-243        SINGLE_TOKENS = {
-244            **tokens.Tokenizer.SINGLE_TOKENS,
-245            "$": TokenType.PARAMETER,
-246        }
+            
211    class Tokenizer(tokens.Tokenizer):
+212        QUOTES = ["'", "$$"]
+213
+214        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
+215        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
+216        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
+217
+218        KEYWORDS = {
+219            **tokens.Tokenizer.KEYWORDS,
+220            "~~": TokenType.LIKE,
+221            "~~*": TokenType.ILIKE,
+222            "~*": TokenType.IRLIKE,
+223            "~": TokenType.RLIKE,
+224            "@>": TokenType.AT_GT,
+225            "<@": TokenType.LT_AT,
+226            "BEGIN": TokenType.COMMAND,
+227            "BEGIN TRANSACTION": TokenType.BEGIN,
+228            "BIGSERIAL": TokenType.BIGSERIAL,
+229            "CHARACTER VARYING": TokenType.VARCHAR,
+230            "DECLARE": TokenType.COMMAND,
+231            "DO": TokenType.COMMAND,
+232            "HSTORE": TokenType.HSTORE,
+233            "JSONB": TokenType.JSONB,
+234            "REFRESH": TokenType.COMMAND,
+235            "REINDEX": TokenType.COMMAND,
+236            "RESET": TokenType.COMMAND,
+237            "RETURNING": TokenType.RETURNING,
+238            "REVOKE": TokenType.COMMAND,
+239            "SERIAL": TokenType.SERIAL,
+240            "SMALLSERIAL": TokenType.SMALLSERIAL,
+241            "TEMP": TokenType.TEMPORARY,
+242            "UUID": TokenType.UUID,
+243            "CSTRING": TokenType.PSEUDO_TYPE,
+244        }
+245
+246        SINGLE_TOKENS = {
+247            **tokens.Tokenizer.SINGLE_TOKENS,
+248            "$": TokenType.PARAMETER,
+249        }
 
@@ -660,23 +693,33 @@
-
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}
+            
251    class Parser(parser.Parser):
+252        STRICT_CAST = False
+253
+254        FUNCTIONS = {
+255            **parser.Parser.FUNCTIONS,  # type: ignore
+256            "NOW": exp.CurrentTimestamp.from_arg_list,
+257            "TO_TIMESTAMP": _to_timestamp,
+258            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
+259            "GENERATE_SERIES": _generate_series,
+260        }
+261
+262        BITWISE = {
+263            **parser.Parser.BITWISE,  # type: ignore
+264            TokenType.HASH: exp.BitwiseXor,
+265        }
+266
+267        FACTOR = {
+268            **parser.Parser.FACTOR,
+269            TokenType.CARET: exp.Pow,
+270        }
+271
+272        RANGE_PARSERS = {
+273            **parser.Parser.RANGE_PARSERS,  # type: ignore
+274            TokenType.DAMP: binary_range_parser(exp.ArrayOverlaps),
+275            TokenType.AT_GT: binary_range_parser(exp.ArrayContains),
+276            TokenType.LT_AT: binary_range_parser(exp.ArrayContained),
+277        }
 
@@ -733,65 +776,68 @@ Default: "nulls_are_small"
-
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,
-306            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
-307            exp.Substring: _substring_sql,
-308            exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)",
-309            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
-310            exp.TableSample: no_tablesample_sql,
-311            exp.Trim: trim_sql,
-312            exp.TryCast: no_trycast_sql,
-313            exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})",
-314            exp.DataType: _datatype_sql,
-315            exp.GroupConcat: _string_agg_sql,
-316            exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})"
-317            if isinstance(seq_get(e.expressions, 0), exp.Select)
-318            else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]",
-319        }
-320
-321        PROPERTIES_LOCATION = {
-322            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
-323            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
-324        }
+            
279    class Generator(generator.Generator):
+280        LOCKING_READS_SUPPORTED = True
+281        PARAMETER_TOKEN = "$"
+282
+283        TYPE_MAPPING = {
+284            **generator.Generator.TYPE_MAPPING,  # type: ignore
+285            exp.DataType.Type.TINYINT: "SMALLINT",
+286            exp.DataType.Type.FLOAT: "REAL",
+287            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
+288            exp.DataType.Type.BINARY: "BYTEA",
+289            exp.DataType.Type.VARBINARY: "BYTEA",
+290            exp.DataType.Type.DATETIME: "TIMESTAMP",
+291        }
+292
+293        TRANSFORMS = {
+294            **generator.Generator.TRANSFORMS,  # type: ignore
+295            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
+296            exp.ColumnDef: preprocess(
+297                [
+298                    _auto_increment_to_serial,
+299                    _serial_to_generated,
+300                ],
+301                delegate("columndef_sql"),
+302            ),
+303            exp.JSONExtract: arrow_json_extract_sql,
+304            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
+305            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
+306            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
+307            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
+308            exp.Pow: lambda self, e: self.binary(e, "^"),
+309            exp.CurrentDate: no_paren_current_date_sql,
+310            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
+311            exp.DateAdd: _date_add_sql("+"),
+312            exp.DateSub: _date_add_sql("-"),
+313            exp.DateDiff: _date_diff_sql,
+314            exp.LogicalOr: rename_func("BOOL_OR"),
+315            exp.Min: min_or_least,
+316            exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"),
+317            exp.ArrayContains: lambda self, e: self.binary(e, "@>"),
+318            exp.ArrayContained: lambda self, e: self.binary(e, "<@"),
+319            exp.RegexpLike: lambda self, e: self.binary(e, "~"),
+320            exp.RegexpILike: lambda self, e: self.binary(e, "~*"),
+321            exp.StrPosition: str_position_sql,
+322            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
+323            exp.Substring: _substring_sql,
+324            exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)",
+325            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
+326            exp.TableSample: no_tablesample_sql,
+327            exp.Trim: trim_sql,
+328            exp.TryCast: no_trycast_sql,
+329            exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})",
+330            exp.DataType: _datatype_sql,
+331            exp.GroupConcat: _string_agg_sql,
+332            exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})"
+333            if isinstance(seq_get(e.expressions, 0), exp.Select)
+334            else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]",
+335        }
+336
+337        PROPERTIES_LOCATION = {
+338            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+339            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
+340        }
 
diff --git a/docs/sqlglot/dialects/redshift.html b/docs/sqlglot/dialects/redshift.html index 790d909..7e69e65 100644 --- a/docs/sqlglot/dialects/redshift.html +++ b/docs/sqlglot/dialects/redshift.html @@ -120,113 +120,115 @@
29 "NVL": exp.Coalesce.from_arg_list, 30 } 31 - 32 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: - 33 this = super()._parse_types(check_func=check_func) - 34 - 35 if ( - 36 isinstance(this, exp.DataType) - 37 and this.this == exp.DataType.Type.VARCHAR - 38 and this.expressions - 39 and this.expressions[0] == exp.column("MAX") - 40 ): - 41 this.set("expressions", [exp.Var(this="MAX")]) - 42 - 43 return this + 32 CONVERT_TYPE_FIRST = True + 33 + 34 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: + 35 this = super()._parse_types(check_func=check_func) + 36 + 37 if ( + 38 isinstance(this, exp.DataType) + 39 and this.this == exp.DataType.Type.VARCHAR + 40 and this.expressions + 41 and this.expressions[0] == exp.column("MAX") + 42 ): + 43 this.set("expressions", [exp.Var(this="MAX")]) 44 - 45 class Tokenizer(Postgres.Tokenizer): - 46 STRING_ESCAPES = ["\\"] - 47 - 48 KEYWORDS = { - 49 **Postgres.Tokenizer.KEYWORDS, # type: ignore - 50 "GEOMETRY": TokenType.GEOMETRY, - 51 "GEOGRAPHY": TokenType.GEOGRAPHY, - 52 "HLLSKETCH": TokenType.HLLSKETCH, - 53 "SUPER": TokenType.SUPER, - 54 "TIME": TokenType.TIMESTAMP, - 55 "TIMETZ": TokenType.TIMESTAMPTZ, - 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) + 45 return this + 46 + 47 class Tokenizer(Postgres.Tokenizer): + 48 STRING_ESCAPES = ["\\"] + 49 + 50 KEYWORDS = { + 51 **Postgres.Tokenizer.KEYWORDS, # type: ignore + 52 "GEOMETRY": TokenType.GEOMETRY, + 53 "GEOGRAPHY": TokenType.GEOGRAPHY, + 54 "HLLSKETCH": TokenType.HLLSKETCH, + 55 "SUPER": TokenType.SUPER, + 56 "TIME": TokenType.TIMESTAMP, + 57 "TIMETZ": TokenType.TIMESTAMPTZ, + 58 "TOP": TokenType.TOP, + 59 "UNLOAD": TokenType.COMMAND, + 60 "VARBYTE": TokenType.VARBINARY, + 61 } + 62 + 63 class Generator(Postgres.Generator): + 64 TYPE_MAPPING = { + 65 **Postgres.Generator.TYPE_MAPPING, # type: ignore + 66 exp.DataType.Type.BINARY: "VARBYTE", + 67 exp.DataType.Type.VARBINARY: "VARBYTE", + 68 exp.DataType.Type.INT: "INTEGER", + 69 } + 70 + 71 PROPERTIES_LOCATION = { + 72 **Postgres.Generator.PROPERTIES_LOCATION, # type: ignore + 73 exp.LikeProperty: exp.Properties.Location.POST_WITH, + 74 } + 75 + 76 TRANSFORMS = { + 77 **Postgres.Generator.TRANSFORMS, # type: ignore + 78 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore + 79 exp.DateDiff: lambda self, e: self.func( + 80 "DATEDIFF", e.args.get("unit") or "day", e.expression, e.this + 81 ), + 82 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", + 83 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", + 84 exp.DistStyleProperty: lambda self, e: self.naked_property(e), + 85 exp.Matches: rename_func("DECODE"), + 86 } + 87 + 88 def values_sql(self, expression: exp.Values) -> str: + 89 """ + 90 Converts `VALUES...` expression into a series of unions. + 91 + 92 Note: If you have a lot of unions then this will result in a large number of recursive statements to + 93 evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be + 94 very slow. + 95 """ + 96 if not isinstance(expression.unnest().parent, exp.From): + 97 return super().values_sql(expression) + 98 rows = [tuple_exp.expressions for tuple_exp in expression.expressions] + 99 selects = [] +100 for i, row in enumerate(rows): +101 if i == 0 and expression.alias: +102 row = [ +103 exp.alias_(value, column_name) +104 for value, column_name in zip(row, expression.args["alias"].args["columns"]) +105 ] +106 selects.append(exp.Select(expressions=row)) +107 subquery_expression = selects[0] +108 if len(selects) > 1: +109 for select in selects[1:]: +110 subquery_expression = exp.union(subquery_expression, select, distinct=False) +111 return self.subquery_sql(subquery_expression.subquery(expression.alias)) +112 +113 def with_properties(self, properties: exp.Properties) -> str: +114 """Redshift doesn't have `WITH` as part of their with_properties so we remove it""" +115 return self.properties(properties, prefix=" ", suffix="") +116 +117 def renametable_sql(self, expression: exp.RenameTable) -> str: +118 """Redshift only supports defining the table name itself (not the db) when renaming tables""" +119 expression = expression.copy() +120 target_table = expression.this +121 for arg in target_table.args: +122 if arg != "this": +123 target_table.set(arg, None) +124 this = self.sql(expression, "this") +125 return f"RENAME TO {this}" +126 +127 def datatype_sql(self, expression: exp.DataType) -> str: +128 """ +129 Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean +130 VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type +131 without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert +132 `TEXT` to `VARCHAR`. +133 """ +134 if expression.this == exp.DataType.Type.TEXT: +135 expression = expression.copy() +136 expression.set("this", exp.DataType.Type.VARCHAR) +137 precision = expression.args.get("expressions") +138 if not precision: +139 expression.append("expressions", exp.Var(this="MAX")) +140 return super().datatype_sql(expression)
@@ -262,113 +264,115 @@ 30 "NVL": exp.Coalesce.from_arg_list, 31 } 32 - 33 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: - 34 this = super()._parse_types(check_func=check_func) - 35 - 36 if ( - 37 isinstance(this, exp.DataType) - 38 and this.this == exp.DataType.Type.VARCHAR - 39 and this.expressions - 40 and this.expressions[0] == exp.column("MAX") - 41 ): - 42 this.set("expressions", [exp.Var(this="MAX")]) - 43 - 44 return this + 33 CONVERT_TYPE_FIRST = True + 34 + 35 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: + 36 this = super()._parse_types(check_func=check_func) + 37 + 38 if ( + 39 isinstance(this, exp.DataType) + 40 and this.this == exp.DataType.Type.VARCHAR + 41 and this.expressions + 42 and this.expressions[0] == exp.column("MAX") + 43 ): + 44 this.set("expressions", [exp.Var(this="MAX")]) 45 - 46 class Tokenizer(Postgres.Tokenizer): - 47 STRING_ESCAPES = ["\\"] - 48 - 49 KEYWORDS = { - 50 **Postgres.Tokenizer.KEYWORDS, # type: ignore - 51 "GEOMETRY": TokenType.GEOMETRY, - 52 "GEOGRAPHY": TokenType.GEOGRAPHY, - 53 "HLLSKETCH": TokenType.HLLSKETCH, - 54 "SUPER": TokenType.SUPER, - 55 "TIME": TokenType.TIMESTAMP, - 56 "TIMETZ": TokenType.TIMESTAMPTZ, - 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) + 46 return this + 47 + 48 class Tokenizer(Postgres.Tokenizer): + 49 STRING_ESCAPES = ["\\"] + 50 + 51 KEYWORDS = { + 52 **Postgres.Tokenizer.KEYWORDS, # type: ignore + 53 "GEOMETRY": TokenType.GEOMETRY, + 54 "GEOGRAPHY": TokenType.GEOGRAPHY, + 55 "HLLSKETCH": TokenType.HLLSKETCH, + 56 "SUPER": TokenType.SUPER, + 57 "TIME": TokenType.TIMESTAMP, + 58 "TIMETZ": TokenType.TIMESTAMPTZ, + 59 "TOP": TokenType.TOP, + 60 "UNLOAD": TokenType.COMMAND, + 61 "VARBYTE": TokenType.VARBINARY, + 62 } + 63 + 64 class Generator(Postgres.Generator): + 65 TYPE_MAPPING = { + 66 **Postgres.Generator.TYPE_MAPPING, # type: ignore + 67 exp.DataType.Type.BINARY: "VARBYTE", + 68 exp.DataType.Type.VARBINARY: "VARBYTE", + 69 exp.DataType.Type.INT: "INTEGER", + 70 } + 71 + 72 PROPERTIES_LOCATION = { + 73 **Postgres.Generator.PROPERTIES_LOCATION, # type: ignore + 74 exp.LikeProperty: exp.Properties.Location.POST_WITH, + 75 } + 76 + 77 TRANSFORMS = { + 78 **Postgres.Generator.TRANSFORMS, # type: ignore + 79 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore + 80 exp.DateDiff: lambda self, e: self.func( + 81 "DATEDIFF", e.args.get("unit") or "day", e.expression, e.this + 82 ), + 83 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", + 84 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", + 85 exp.DistStyleProperty: lambda self, e: self.naked_property(e), + 86 exp.Matches: rename_func("DECODE"), + 87 } + 88 + 89 def values_sql(self, expression: exp.Values) -> str: + 90 """ + 91 Converts `VALUES...` expression into a series of unions. + 92 + 93 Note: If you have a lot of unions then this will result in a large number of recursive statements to + 94 evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be + 95 very slow. + 96 """ + 97 if not isinstance(expression.unnest().parent, exp.From): + 98 return super().values_sql(expression) + 99 rows = [tuple_exp.expressions for tuple_exp in expression.expressions] +100 selects = [] +101 for i, row in enumerate(rows): +102 if i == 0 and expression.alias: +103 row = [ +104 exp.alias_(value, column_name) +105 for value, column_name in zip(row, expression.args["alias"].args["columns"]) +106 ] +107 selects.append(exp.Select(expressions=row)) +108 subquery_expression = selects[0] +109 if len(selects) > 1: +110 for select in selects[1:]: +111 subquery_expression = exp.union(subquery_expression, select, distinct=False) +112 return self.subquery_sql(subquery_expression.subquery(expression.alias)) +113 +114 def with_properties(self, properties: exp.Properties) -> str: +115 """Redshift doesn't have `WITH` as part of their with_properties so we remove it""" +116 return self.properties(properties, prefix=" ", suffix="") +117 +118 def renametable_sql(self, expression: exp.RenameTable) -> str: +119 """Redshift only supports defining the table name itself (not the db) when renaming tables""" +120 expression = expression.copy() +121 target_table = expression.this +122 for arg in target_table.args: +123 if arg != "this": +124 target_table.set(arg, None) +125 this = self.sql(expression, "this") +126 return f"RENAME TO {this}" +127 +128 def datatype_sql(self, expression: exp.DataType) -> str: +129 """ +130 Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean +131 VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type +132 without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert +133 `TEXT` to `VARCHAR`. +134 """ +135 if expression.this == exp.DataType.Type.TEXT: +136 expression = expression.copy() +137 expression.set("this", exp.DataType.Type.VARCHAR) +138 precision = expression.args.get("expressions") +139 if not precision: +140 expression.append("expressions", exp.Var(this="MAX")) +141 return super().datatype_sql(expression)
@@ -414,18 +418,20 @@ 30 "NVL": exp.Coalesce.from_arg_list, 31 } 32 -33 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: -34 this = super()._parse_types(check_func=check_func) -35 -36 if ( -37 isinstance(this, exp.DataType) -38 and this.this == exp.DataType.Type.VARCHAR -39 and this.expressions -40 and this.expressions[0] == exp.column("MAX") -41 ): -42 this.set("expressions", [exp.Var(this="MAX")]) -43 -44 return this +33 CONVERT_TYPE_FIRST = True +34 +35 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: +36 this = super()._parse_types(check_func=check_func) +37 +38 if ( +39 isinstance(this, exp.DataType) +40 and this.this == exp.DataType.Type.VARCHAR +41 and this.expressions +42 and this.expressions[0] == exp.column("MAX") +43 ): +44 this.set("expressions", [exp.Var(this="MAX")]) +45 +46 return this
@@ -482,21 +488,21 @@ Default: "nulls_are_small" -
46    class Tokenizer(Postgres.Tokenizer):
-47        STRING_ESCAPES = ["\\"]
-48
-49        KEYWORDS = {
-50            **Postgres.Tokenizer.KEYWORDS,  # type: ignore
-51            "GEOMETRY": TokenType.GEOMETRY,
-52            "GEOGRAPHY": TokenType.GEOGRAPHY,
-53            "HLLSKETCH": TokenType.HLLSKETCH,
-54            "SUPER": TokenType.SUPER,
-55            "TIME": TokenType.TIMESTAMP,
-56            "TIMETZ": TokenType.TIMESTAMPTZ,
-57            "TOP": TokenType.TOP,
-58            "UNLOAD": TokenType.COMMAND,
-59            "VARBYTE": TokenType.VARBINARY,
-60        }
+            
48    class Tokenizer(Postgres.Tokenizer):
+49        STRING_ESCAPES = ["\\"]
+50
+51        KEYWORDS = {
+52            **Postgres.Tokenizer.KEYWORDS,  # type: ignore
+53            "GEOMETRY": TokenType.GEOMETRY,
+54            "GEOGRAPHY": TokenType.GEOGRAPHY,
+55            "HLLSKETCH": TokenType.HLLSKETCH,
+56            "SUPER": TokenType.SUPER,
+57            "TIME": TokenType.TIMESTAMP,
+58            "TIMETZ": TokenType.TIMESTAMPTZ,
+59            "TOP": TokenType.TOP,
+60            "UNLOAD": TokenType.COMMAND,
+61            "VARBYTE": TokenType.VARBINARY,
+62        }
 
@@ -524,84 +530,84 @@ Default: "nulls_are_small"
-
 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)
+            
 64    class Generator(Postgres.Generator):
+ 65        TYPE_MAPPING = {
+ 66            **Postgres.Generator.TYPE_MAPPING,  # type: ignore
+ 67            exp.DataType.Type.BINARY: "VARBYTE",
+ 68            exp.DataType.Type.VARBINARY: "VARBYTE",
+ 69            exp.DataType.Type.INT: "INTEGER",
+ 70        }
+ 71
+ 72        PROPERTIES_LOCATION = {
+ 73            **Postgres.Generator.PROPERTIES_LOCATION,  # type: ignore
+ 74            exp.LikeProperty: exp.Properties.Location.POST_WITH,
+ 75        }
+ 76
+ 77        TRANSFORMS = {
+ 78            **Postgres.Generator.TRANSFORMS,  # type: ignore
+ 79            **transforms.ELIMINATE_DISTINCT_ON,  # type: ignore
+ 80            exp.DateDiff: lambda self, e: self.func(
+ 81                "DATEDIFF", e.args.get("unit") or "day", e.expression, e.this
+ 82            ),
+ 83            exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})",
+ 84            exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})",
+ 85            exp.DistStyleProperty: lambda self, e: self.naked_property(e),
+ 86            exp.Matches: rename_func("DECODE"),
+ 87        }
+ 88
+ 89        def values_sql(self, expression: exp.Values) -> str:
+ 90            """
+ 91            Converts `VALUES...` expression into a series of unions.
+ 92
+ 93            Note: If you have a lot of unions then this will result in a large number of recursive statements to
+ 94            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
+ 95            very slow.
+ 96            """
+ 97            if not isinstance(expression.unnest().parent, exp.From):
+ 98                return super().values_sql(expression)
+ 99            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
+100            selects = []
+101            for i, row in enumerate(rows):
+102                if i == 0 and expression.alias:
+103                    row = [
+104                        exp.alias_(value, column_name)
+105                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
+106                    ]
+107                selects.append(exp.Select(expressions=row))
+108            subquery_expression = selects[0]
+109            if len(selects) > 1:
+110                for select in selects[1:]:
+111                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
+112            return self.subquery_sql(subquery_expression.subquery(expression.alias))
+113
+114        def with_properties(self, properties: exp.Properties) -> str:
+115            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
+116            return self.properties(properties, prefix=" ", suffix="")
+117
+118        def renametable_sql(self, expression: exp.RenameTable) -> str:
+119            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
+120            expression = expression.copy()
+121            target_table = expression.this
+122            for arg in target_table.args:
+123                if arg != "this":
+124                    target_table.set(arg, None)
+125            this = self.sql(expression, "this")
+126            return f"RENAME TO {this}"
+127
+128        def datatype_sql(self, expression: exp.DataType) -> str:
+129            """
+130            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
+131            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
+132            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
+133            `TEXT` to `VARCHAR`.
+134            """
+135            if expression.this == exp.DataType.Type.TEXT:
+136                expression = expression.copy()
+137                expression.set("this", exp.DataType.Type.VARCHAR)
+138                precision = expression.args.get("expressions")
+139                if not precision:
+140                    expression.append("expressions", exp.Var(this="MAX"))
+141            return super().datatype_sql(expression)
 
@@ -661,30 +667,30 @@ Default: True
-
 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))
+            
 89        def values_sql(self, expression: exp.Values) -> str:
+ 90            """
+ 91            Converts `VALUES...` expression into a series of unions.
+ 92
+ 93            Note: If you have a lot of unions then this will result in a large number of recursive statements to
+ 94            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
+ 95            very slow.
+ 96            """
+ 97            if not isinstance(expression.unnest().parent, exp.From):
+ 98                return super().values_sql(expression)
+ 99            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
+100            selects = []
+101            for i, row in enumerate(rows):
+102                if i == 0 and expression.alias:
+103                    row = [
+104                        exp.alias_(value, column_name)
+105                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
+106                    ]
+107                selects.append(exp.Select(expressions=row))
+108            subquery_expression = selects[0]
+109            if len(selects) > 1:
+110                for select in selects[1:]:
+111                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
+112            return self.subquery_sql(subquery_expression.subquery(expression.alias))
 
@@ -708,9 +714,9 @@ very slow.

-
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="")
+            
114        def with_properties(self, properties: exp.Properties) -> str:
+115            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
+116            return self.properties(properties, prefix=" ", suffix="")
 
@@ -730,15 +736,15 @@ very slow.

-
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}"
+            
118        def renametable_sql(self, expression: exp.RenameTable) -> str:
+119            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
+120            expression = expression.copy()
+121            target_table = expression.this
+122            for arg in target_table.args:
+123                if arg != "this":
+124                    target_table.set(arg, None)
+125            this = self.sql(expression, "this")
+126            return f"RENAME TO {this}"
 
@@ -758,20 +764,20 @@ very slow.

-
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)
+            
128        def datatype_sql(self, expression: exp.DataType) -> str:
+129            """
+130            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
+131            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
+132            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
+133            `TEXT` to `VARCHAR`.
+134            """
+135            if expression.this == exp.DataType.Type.TEXT:
+136                expression = expression.copy()
+137                expression.set("this", exp.DataType.Type.VARCHAR)
+138                precision = expression.args.get("expressions")
+139                if not precision:
+140                    expression.append("expressions", exp.Var(this="MAX"))
+141            return super().datatype_sql(expression)
 
diff --git a/docs/sqlglot/dialects/snowflake.html b/docs/sqlglot/dialects/snowflake.html index 8963ac3..17ce505 100644 --- a/docs/sqlglot/dialects/snowflake.html +++ b/docs/sqlglot/dialects/snowflake.html @@ -122,378 +122,380 @@
16) 17from sqlglot.expressions import Literal 18from sqlglot.helper import flatten, seq_get - 19from sqlglot.tokens import TokenType - 20 + 19from sqlglot.parser import binary_range_parser + 20from sqlglot.tokens import TokenType 21 - 22def _check_int(s): - 23 if s[0] in ("-", "+"): - 24 return s[1:].isdigit() - 25 return s.isdigit() - 26 + 22 + 23def _check_int(s): + 24 if s[0] in ("-", "+"): + 25 return s[1:].isdigit() + 26 return s.isdigit() 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 + 28 + 29# from https://docs.snowflake.com/en/sql-reference/functions/to_timestamp.html + 30def _snowflake_to_timestamp(args): + 31 if len(args) == 2: + 32 first_arg, second_arg = args + 33 if second_arg.is_string: + 34 # case: <string_expr> [ , <format> ] + 35 return format_time_lambda(exp.StrToTime, "snowflake")(args) + 36 + 37 # case: <numeric_expr> [ , <scale> ] + 38 if second_arg.name not in ["0", "3", "9"]: + 39 raise ValueError( + 40 f"Scale for snowflake numeric timestamp is {second_arg}, but should be 0, 3, or 9" + 41 ) + 42 + 43 if second_arg.name == "0": + 44 timescale = exp.UnixToTime.SECONDS + 45 elif second_arg.name == "3": + 46 timescale = exp.UnixToTime.MILLIS + 47 elif second_arg.name == "9": + 48 timescale = exp.UnixToTime.MICROS + 49 + 50 return exp.UnixToTime(this=first_arg, scale=timescale) + 51 + 52 first_arg = seq_get(args, 0) + 53 if not isinstance(first_arg, Literal): + 54 # case: <variant_expr> + 55 return format_time_lambda(exp.StrToTime, "snowflake", default=True)(args) + 56 + 57 if first_arg.is_string: + 58 if _check_int(first_arg.this): + 59 # case: <integer> + 60 return exp.UnixToTime.from_arg_list(args) + 61 + 62 # case: <date_expr> + 63 return format_time_lambda(exp.StrToTime, "snowflake", default=True)(args) + 64 + 65 # case: <numeric_expr> + 66 return exp.UnixToTime.from_arg_list(args) 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 + 68 + 69def _unix_to_time_sql(self, expression): + 70 scale = expression.args.get("scale") + 71 timestamp = self.sql(expression, "this") + 72 if scale in [None, exp.UnixToTime.SECONDS]: + 73 return f"TO_TIMESTAMP({timestamp})" + 74 if scale == exp.UnixToTime.MILLIS: + 75 return f"TO_TIMESTAMP({timestamp}, 3)" + 76 if scale == exp.UnixToTime.MICROS: + 77 return f"TO_TIMESTAMP({timestamp}, 9)" + 78 + 79 raise ValueError("Improper scale for timestamp") 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 + 81 + 82# https://docs.snowflake.com/en/sql-reference/functions/date_part.html + 83# https://docs.snowflake.com/en/sql-reference/functions-date-time.html#label-supported-date-time-parts + 84def _parse_date_part(self): + 85 this = self._parse_var() or self._parse_type() + 86 self._match(TokenType.COMMA) + 87 expression = self._parse_bitwise() + 88 + 89 name = this.name.upper() + 90 if name.startswith("EPOCH"): + 91 if name.startswith("EPOCH_MILLISECOND"): + 92 scale = 10**3 + 93 elif name.startswith("EPOCH_MICROSECOND"): + 94 scale = 10**6 + 95 elif name.startswith("EPOCH_NANOSECOND"): + 96 scale = 10**9 + 97 else: + 98 scale = None + 99 +100 ts = self.expression(exp.Cast, this=expression, to=exp.DataType.build("TIMESTAMP")) +101 to_unix = self.expression(exp.TimeToUnix, this=ts) +102 +103 if scale: +104 to_unix = exp.Mul(this=to_unix, expression=exp.Literal.number(scale)) +105 +106 return to_unix +107 +108 return self.expression(exp.Extract, this=this, expression=expression) 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 +110 +111# https://docs.snowflake.com/en/sql-reference/functions/div0 +112def _div0_to_if(args): +113 cond = exp.EQ(this=seq_get(args, 1), expression=exp.Literal.number(0)) +114 true = exp.Literal.number(0) +115 false = exp.FloatDiv(this=seq_get(args, 0), expression=seq_get(args, 1)) +116 return exp.If(this=cond, true=true, false=false) 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 +118 +119# https://docs.snowflake.com/en/sql-reference/functions/zeroifnull +120def _zeroifnull_to_if(args): +121 cond = exp.Is(this=seq_get(args, 0), expression=exp.Null()) +122 return exp.If(this=cond, true=exp.Literal.number(0), false=seq_get(args, 0)) 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 +124 +125# https://docs.snowflake.com/en/sql-reference/functions/zeroifnull +126def _nullifzero_to_if(args): +127 cond = exp.EQ(this=seq_get(args, 0), expression=exp.Literal.number(0)) +128 return exp.If(this=cond, true=exp.Null(), false=seq_get(args, 0)) 129 -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 +130 +131def _datatype_sql(self, expression): +132 if expression.this == exp.DataType.Type.ARRAY: +133 return "ARRAY" +134 elif expression.this == exp.DataType.Type.MAP: +135 return "OBJECT" +136 return self.datatype_sql(expression) 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") +138 +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 "DATEDIFF": lambda args: exp.DateDiff( +184 this=seq_get(args, 2), +185 expression=seq_get(args, 1), +186 unit=seq_get(args, 0), +187 ), +188 "DATE_TRUNC": lambda args: exp.DateTrunc( +189 unit=exp.Literal.string(seq_get(args, 0).name), # type: ignore +190 this=seq_get(args, 1), +191 ), +192 "DIV0": _div0_to_if, +193 "IFF": exp.If.from_arg_list, +194 "TO_ARRAY": exp.Array.from_arg_list, +195 "TO_TIMESTAMP": _snowflake_to_timestamp, +196 "ARRAY_CONSTRUCT": exp.Array.from_arg_list, +197 "RLIKE": exp.RegexpLike.from_arg_list, +198 "DECODE": exp.Matches.from_arg_list, +199 "OBJECT_CONSTRUCT": parser.parse_var_map, +200 "ZEROIFNULL": _zeroifnull_to_if, +201 "NULLIFZERO": _nullifzero_to_if, +202 } 203 -204 FUNC_TOKENS = { -205 *parser.Parser.FUNC_TOKENS, -206 TokenType.RLIKE, -207 TokenType.TABLE, -208 } +204 FUNCTION_PARSERS = { +205 **parser.Parser.FUNCTION_PARSERS, +206 "DATE_PART": _parse_date_part, +207 } +208 FUNCTION_PARSERS.pop("TRIM") 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 +210 FUNC_TOKENS = { +211 *parser.Parser.FUNC_TOKENS, +212 TokenType.RLIKE, +213 TokenType.TABLE, +214 } +215 +216 COLUMN_OPERATORS = { +217 **parser.Parser.COLUMN_OPERATORS, # type: ignore +218 TokenType.COLON: lambda self, this, path: self.expression( +219 exp.Bracket, +220 this=this, +221 expressions=[path], +222 ), +223 } +224 +225 RANGE_PARSERS = { +226 **parser.Parser.RANGE_PARSERS, # type: ignore +227 TokenType.LIKE_ANY: binary_range_parser(exp.LikeAny), +228 TokenType.ILIKE_ANY: binary_range_parser(exp.ILikeAny), +229 } +230 +231 ALTER_PARSERS = { +232 **parser.Parser.ALTER_PARSERS, # type: ignore +233 "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True), +234 "SET": lambda self: self._parse_alter_table_set_tag(), +235 } 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 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 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}" +237 INTEGER_DIVISION = False +238 +239 def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression: +240 self._match_text_seq("TAG") +241 parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction) +242 return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset) +243 +244 class Tokenizer(tokens.Tokenizer): +245 QUOTES = ["'", "$$"] +246 STRING_ESCAPES = ["\\", "'"] +247 +248 KEYWORDS = { +249 **tokens.Tokenizer.KEYWORDS, +250 "EXCLUDE": TokenType.EXCEPT, +251 "ILIKE ANY": TokenType.ILIKE_ANY, +252 "LIKE ANY": TokenType.LIKE_ANY, +253 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, +254 "PUT": TokenType.COMMAND, +255 "RENAME": TokenType.REPLACE, +256 "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ, +257 "TIMESTAMP_NTZ": TokenType.TIMESTAMP, +258 "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ, +259 "TIMESTAMPNTZ": TokenType.TIMESTAMP, +260 "MINUS": TokenType.EXCEPT, +261 "SAMPLE": TokenType.TABLE_SAMPLE, +262 } +263 +264 SINGLE_TOKENS = { +265 **tokens.Tokenizer.SINGLE_TOKENS, +266 "$": TokenType.PARAMETER, +267 } +268 +269 class Generator(generator.Generator): +270 PARAMETER_TOKEN = "$" +271 INTEGER_DIVISION = False +272 MATCHED_BY_SOURCE = False +273 +274 TRANSFORMS = { +275 **generator.Generator.TRANSFORMS, # type: ignore +276 exp.Array: inline_array_sql, +277 exp.ArrayConcat: rename_func("ARRAY_CAT"), +278 exp.ArrayJoin: rename_func("ARRAY_TO_STRING"), +279 exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this), +280 exp.DateStrToDate: datestrtodate_sql, +281 exp.DataType: _datatype_sql, +282 exp.If: rename_func("IFF"), +283 exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +284 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +285 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", +286 exp.Matches: rename_func("DECODE"), +287 exp.StrPosition: lambda self, e: self.func( +288 "POSITION", e.args.get("substr"), e.this, e.args.get("position") +289 ), +290 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +291 exp.TimeStrToTime: timestrtotime_sql, +292 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", +293 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), +294 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), +295 exp.UnixToTime: _unix_to_time_sql, +296 exp.DayOfWeek: rename_func("DAYOFWEEK"), +297 exp.Min: min_or_least, +298 } +299 +300 TYPE_MAPPING = { +301 **generator.Generator.TYPE_MAPPING, # type: ignore +302 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", +303 } +304 +305 STAR_MAPPING = { +306 "except": "EXCLUDE", +307 "replace": "RENAME", +308 } +309 +310 PROPERTIES_LOCATION = { +311 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +312 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, +313 } +314 +315 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: +316 return self.binary(expression, "ILIKE ANY") +317 +318 def likeany_sql(self, expression: exp.LikeAny) -> str: +319 return self.binary(expression, "LIKE ANY") +320 +321 def except_op(self, expression): +322 if not expression.args.get("distinct", False): +323 self.unsupported("EXCEPT with All is not supported in Snowflake") +324 return super().except_op(expression) +325 +326 def intersect_op(self, expression): +327 if not expression.args.get("distinct", False): +328 self.unsupported("INTERSECT with All is not supported in Snowflake") +329 return super().intersect_op(expression) +330 +331 def values_sql(self, expression: exp.Values) -> str: +332 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. +333 +334 We also want to make sure that after we find matches where we need to unquote a column that we prevent users +335 from adding quotes to the column by using the `identify` argument when generating the SQL. +336 """ +337 alias = expression.args.get("alias") +338 if alias and alias.args.get("columns"): +339 expression = expression.transform( +340 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +341 if isinstance(node, exp.Identifier) +342 and isinstance(node.parent, exp.TableAlias) +343 and node.arg_key == "columns" +344 else node, +345 ) +346 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) +347 return super().values_sql(expression) +348 +349 def settag_sql(self, expression: exp.SetTag) -> str: +350 action = "UNSET" if expression.args.get("unset") else "SET" +351 return f"{action} TAG {self.expressions(expression)}" +352 +353 def select_sql(self, expression: exp.Select) -> str: +354 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also +355 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need +356 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when +357 generating the SQL. +358 +359 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the +360 expression. This might not be true in a case where the same column name can be sourced from another table that can +361 properly quote but should be true in most cases. +362 """ +363 values_identifiers = set( +364 flatten( +365 (v.args.get("alias") or exp.Alias()).args.get("columns", []) +366 for v in expression.find_all(exp.Values) +367 ) +368 ) +369 if values_identifiers: +370 expression = expression.transform( +371 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +372 if isinstance(node, exp.Identifier) and node in values_identifiers +373 else node, +374 ) +375 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) +376 return super().select_sql(expression) +377 +378 def describe_sql(self, expression: exp.Describe) -> str: +379 # Default to table if kind is unknown +380 kind_value = expression.args.get("kind") or "TABLE" +381 kind = f" {kind_value}" if kind_value else "" +382 this = f" {self.sql(expression, 'this')}" +383 return f"DESCRIBE{kind}{this}" +384 +385 def generatedasidentitycolumnconstraint_sql( +386 self, expression: exp.GeneratedAsIdentityColumnConstraint +387 ) -> str: +388 start = expression.args.get("start") +389 start = f" START {start}" if start else "" +390 increment = expression.args.get("increment") +391 increment = f" INCREMENT {increment}" if increment else "" +392 return f"AUTOINCREMENT{start}{increment}"
@@ -509,259 +511,260 @@ -
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")
+            
140class Snowflake(Dialect):
+141    null_ordering = "nulls_are_large"
+142    time_format = "'yyyy-mm-dd hh24:mi:ss'"
+143
+144    time_mapping = {
+145        "YYYY": "%Y",
+146        "yyyy": "%Y",
+147        "YY": "%y",
+148        "yy": "%y",
+149        "MMMM": "%B",
+150        "mmmm": "%B",
+151        "MON": "%b",
+152        "mon": "%b",
+153        "MM": "%m",
+154        "mm": "%m",
+155        "DD": "%d",
+156        "dd": "%d",
+157        "d": "%-d",
+158        "DY": "%w",
+159        "dy": "%w",
+160        "HH24": "%H",
+161        "hh24": "%H",
+162        "HH12": "%I",
+163        "hh12": "%I",
+164        "MI": "%M",
+165        "mi": "%M",
+166        "SS": "%S",
+167        "ss": "%S",
+168        "FF": "%f",
+169        "ff": "%f",
+170        "FF6": "%f",
+171        "ff6": "%f",
+172    }
+173
+174    class Parser(parser.Parser):
+175        FUNCTIONS = {
+176            **parser.Parser.FUNCTIONS,
+177            "ARRAYAGG": exp.ArrayAgg.from_arg_list,
+178            "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list,
+179            "DATEADD": lambda args: exp.DateAdd(
+180                this=seq_get(args, 2),
+181                expression=seq_get(args, 1),
+182                unit=seq_get(args, 0),
+183            ),
+184            "DATEDIFF": lambda args: exp.DateDiff(
+185                this=seq_get(args, 2),
+186                expression=seq_get(args, 1),
+187                unit=seq_get(args, 0),
+188            ),
+189            "DATE_TRUNC": lambda args: exp.DateTrunc(
+190                unit=exp.Literal.string(seq_get(args, 0).name),  # type: ignore
+191                this=seq_get(args, 1),
+192            ),
+193            "DIV0": _div0_to_if,
+194            "IFF": exp.If.from_arg_list,
+195            "TO_ARRAY": exp.Array.from_arg_list,
+196            "TO_TIMESTAMP": _snowflake_to_timestamp,
+197            "ARRAY_CONSTRUCT": exp.Array.from_arg_list,
+198            "RLIKE": exp.RegexpLike.from_arg_list,
+199            "DECODE": exp.Matches.from_arg_list,
+200            "OBJECT_CONSTRUCT": parser.parse_var_map,
+201            "ZEROIFNULL": _zeroifnull_to_if,
+202            "NULLIFZERO": _nullifzero_to_if,
+203        }
 204
-205        FUNC_TOKENS = {
-206            *parser.Parser.FUNC_TOKENS,
-207            TokenType.RLIKE,
-208            TokenType.TABLE,
-209        }
+205        FUNCTION_PARSERS = {
+206            **parser.Parser.FUNCTION_PARSERS,
+207            "DATE_PART": _parse_date_part,
+208        }
+209        FUNCTION_PARSERS.pop("TRIM")
 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
+211        FUNC_TOKENS = {
+212            *parser.Parser.FUNC_TOKENS,
+213            TokenType.RLIKE,
+214            TokenType.TABLE,
+215        }
+216
+217        COLUMN_OPERATORS = {
+218            **parser.Parser.COLUMN_OPERATORS,  # type: ignore
+219            TokenType.COLON: lambda self, this, path: self.expression(
+220                exp.Bracket,
+221                this=this,
+222                expressions=[path],
+223            ),
+224        }
+225
+226        RANGE_PARSERS = {
+227            **parser.Parser.RANGE_PARSERS,  # type: ignore
+228            TokenType.LIKE_ANY: binary_range_parser(exp.LikeAny),
+229            TokenType.ILIKE_ANY: binary_range_parser(exp.ILikeAny),
+230        }
+231
+232        ALTER_PARSERS = {
+233            **parser.Parser.ALTER_PARSERS,  # type: ignore
+234            "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True),
+235            "SET": lambda self: self._parse_alter_table_set_tag(),
+236        }
 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        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 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}"
+238        INTEGER_DIVISION = False
+239
+240        def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression:
+241            self._match_text_seq("TAG")
+242            parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction)
+243            return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset)
+244
+245    class Tokenizer(tokens.Tokenizer):
+246        QUOTES = ["'", "$$"]
+247        STRING_ESCAPES = ["\\", "'"]
+248
+249        KEYWORDS = {
+250            **tokens.Tokenizer.KEYWORDS,
+251            "EXCLUDE": TokenType.EXCEPT,
+252            "ILIKE ANY": TokenType.ILIKE_ANY,
+253            "LIKE ANY": TokenType.LIKE_ANY,
+254            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
+255            "PUT": TokenType.COMMAND,
+256            "RENAME": TokenType.REPLACE,
+257            "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ,
+258            "TIMESTAMP_NTZ": TokenType.TIMESTAMP,
+259            "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ,
+260            "TIMESTAMPNTZ": TokenType.TIMESTAMP,
+261            "MINUS": TokenType.EXCEPT,
+262            "SAMPLE": TokenType.TABLE_SAMPLE,
+263        }
+264
+265        SINGLE_TOKENS = {
+266            **tokens.Tokenizer.SINGLE_TOKENS,
+267            "$": TokenType.PARAMETER,
+268        }
+269
+270    class Generator(generator.Generator):
+271        PARAMETER_TOKEN = "$"
+272        INTEGER_DIVISION = False
+273        MATCHED_BY_SOURCE = False
+274
+275        TRANSFORMS = {
+276            **generator.Generator.TRANSFORMS,  # type: ignore
+277            exp.Array: inline_array_sql,
+278            exp.ArrayConcat: rename_func("ARRAY_CAT"),
+279            exp.ArrayJoin: rename_func("ARRAY_TO_STRING"),
+280            exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this),
+281            exp.DateStrToDate: datestrtodate_sql,
+282            exp.DataType: _datatype_sql,
+283            exp.If: rename_func("IFF"),
+284            exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
+285            exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
+286            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
+287            exp.Matches: rename_func("DECODE"),
+288            exp.StrPosition: lambda self, e: self.func(
+289                "POSITION", e.args.get("substr"), e.this, e.args.get("position")
+290            ),
+291            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
+292            exp.TimeStrToTime: timestrtotime_sql,
+293            exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})",
+294            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
+295            exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"),
+296            exp.UnixToTime: _unix_to_time_sql,
+297            exp.DayOfWeek: rename_func("DAYOFWEEK"),
+298            exp.Min: min_or_least,
+299        }
+300
+301        TYPE_MAPPING = {
+302            **generator.Generator.TYPE_MAPPING,  # type: ignore
+303            exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ",
+304        }
+305
+306        STAR_MAPPING = {
+307            "except": "EXCLUDE",
+308            "replace": "RENAME",
+309        }
+310
+311        PROPERTIES_LOCATION = {
+312            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+313            exp.SetProperty: exp.Properties.Location.UNSUPPORTED,
+314        }
+315
+316        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
+317            return self.binary(expression, "ILIKE ANY")
+318
+319        def likeany_sql(self, expression: exp.LikeAny) -> str:
+320            return self.binary(expression, "LIKE ANY")
+321
+322        def except_op(self, expression):
+323            if not expression.args.get("distinct", False):
+324                self.unsupported("EXCEPT with All is not supported in Snowflake")
+325            return super().except_op(expression)
+326
+327        def intersect_op(self, expression):
+328            if not expression.args.get("distinct", False):
+329                self.unsupported("INTERSECT with All is not supported in Snowflake")
+330            return super().intersect_op(expression)
+331
+332        def values_sql(self, expression: exp.Values) -> str:
+333            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
+334
+335            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
+336            from adding quotes to the column by using the `identify` argument when generating the SQL.
+337            """
+338            alias = expression.args.get("alias")
+339            if alias and alias.args.get("columns"):
+340                expression = expression.transform(
+341                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
+342                    if isinstance(node, exp.Identifier)
+343                    and isinstance(node.parent, exp.TableAlias)
+344                    and node.arg_key == "columns"
+345                    else node,
+346                )
+347                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
+348            return super().values_sql(expression)
+349
+350        def settag_sql(self, expression: exp.SetTag) -> str:
+351            action = "UNSET" if expression.args.get("unset") else "SET"
+352            return f"{action} TAG {self.expressions(expression)}"
+353
+354        def select_sql(self, expression: exp.Select) -> str:
+355            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
+356            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
+357            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
+358            generating the SQL.
+359
+360            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
+361            expression. This might not be true in a case where the same column name can be sourced from another table that can
+362            properly quote but should be true in most cases.
+363            """
+364            values_identifiers = set(
+365                flatten(
+366                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
+367                    for v in expression.find_all(exp.Values)
+368                )
+369            )
+370            if values_identifiers:
+371                expression = expression.transform(
+372                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
+373                    if isinstance(node, exp.Identifier) and node in values_identifiers
+374                    else node,
+375                )
+376                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
+377            return super().select_sql(expression)
+378
+379        def describe_sql(self, expression: exp.Describe) -> str:
+380            # Default to table if kind is unknown
+381            kind_value = expression.args.get("kind") or "TABLE"
+382            kind = f" {kind_value}" if kind_value else ""
+383            this = f" {self.sql(expression, 'this')}"
+384            return f"DESCRIBE{kind}{this}"
+385
+386        def generatedasidentitycolumnconstraint_sql(
+387            self, expression: exp.GeneratedAsIdentityColumnConstraint
+388        ) -> str:
+389            start = expression.args.get("start")
+390            start = f" START {start}" if start else ""
+391            increment = expression.args.get("increment")
+392            increment = f" INCREMENT {increment}" if increment else ""
+393            return f"AUTOINCREMENT{start}{increment}"
 
@@ -795,75 +798,76 @@
-
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")
+            
174    class Parser(parser.Parser):
+175        FUNCTIONS = {
+176            **parser.Parser.FUNCTIONS,
+177            "ARRAYAGG": exp.ArrayAgg.from_arg_list,
+178            "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list,
+179            "DATEADD": lambda args: exp.DateAdd(
+180                this=seq_get(args, 2),
+181                expression=seq_get(args, 1),
+182                unit=seq_get(args, 0),
+183            ),
+184            "DATEDIFF": lambda args: exp.DateDiff(
+185                this=seq_get(args, 2),
+186                expression=seq_get(args, 1),
+187                unit=seq_get(args, 0),
+188            ),
+189            "DATE_TRUNC": lambda args: exp.DateTrunc(
+190                unit=exp.Literal.string(seq_get(args, 0).name),  # type: ignore
+191                this=seq_get(args, 1),
+192            ),
+193            "DIV0": _div0_to_if,
+194            "IFF": exp.If.from_arg_list,
+195            "TO_ARRAY": exp.Array.from_arg_list,
+196            "TO_TIMESTAMP": _snowflake_to_timestamp,
+197            "ARRAY_CONSTRUCT": exp.Array.from_arg_list,
+198            "RLIKE": exp.RegexpLike.from_arg_list,
+199            "DECODE": exp.Matches.from_arg_list,
+200            "OBJECT_CONSTRUCT": parser.parse_var_map,
+201            "ZEROIFNULL": _zeroifnull_to_if,
+202            "NULLIFZERO": _nullifzero_to_if,
+203        }
 204
-205        FUNC_TOKENS = {
-206            *parser.Parser.FUNC_TOKENS,
-207            TokenType.RLIKE,
-208            TokenType.TABLE,
-209        }
+205        FUNCTION_PARSERS = {
+206            **parser.Parser.FUNCTION_PARSERS,
+207            "DATE_PART": _parse_date_part,
+208        }
+209        FUNCTION_PARSERS.pop("TRIM")
 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
+211        FUNC_TOKENS = {
+212            *parser.Parser.FUNC_TOKENS,
+213            TokenType.RLIKE,
+214            TokenType.TABLE,
+215        }
+216
+217        COLUMN_OPERATORS = {
+218            **parser.Parser.COLUMN_OPERATORS,  # type: ignore
+219            TokenType.COLON: lambda self, this, path: self.expression(
+220                exp.Bracket,
+221                this=this,
+222                expressions=[path],
+223            ),
+224        }
+225
+226        RANGE_PARSERS = {
+227            **parser.Parser.RANGE_PARSERS,  # type: ignore
+228            TokenType.LIKE_ANY: binary_range_parser(exp.LikeAny),
+229            TokenType.ILIKE_ANY: binary_range_parser(exp.ILikeAny),
+230        }
+231
+232        ALTER_PARSERS = {
+233            **parser.Parser.ALTER_PARSERS,  # type: ignore
+234            "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True),
+235            "SET": lambda self: self._parse_alter_table_set_tag(),
+236        }
 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)
+238        INTEGER_DIVISION = False
+239
+240        def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression:
+241            self._match_text_seq("TAG")
+242            parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction)
+243            return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset)
 
@@ -920,30 +924,30 @@ Default: "nulls_are_small"
-
243    class Tokenizer(tokens.Tokenizer):
-244        QUOTES = ["'", "$$"]
-245        STRING_ESCAPES = ["\\", "'"]
-246
-247        KEYWORDS = {
-248            **tokens.Tokenizer.KEYWORDS,
-249            "EXCLUDE": TokenType.EXCEPT,
-250            "ILIKE ANY": TokenType.ILIKE_ANY,
-251            "LIKE ANY": TokenType.LIKE_ANY,
-252            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
-253            "PUT": TokenType.COMMAND,
-254            "RENAME": TokenType.REPLACE,
-255            "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ,
-256            "TIMESTAMP_NTZ": TokenType.TIMESTAMP,
-257            "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ,
-258            "TIMESTAMPNTZ": TokenType.TIMESTAMP,
-259            "MINUS": TokenType.EXCEPT,
-260            "SAMPLE": TokenType.TABLE_SAMPLE,
-261        }
-262
-263        SINGLE_TOKENS = {
-264            **tokens.Tokenizer.SINGLE_TOKENS,
-265            "$": TokenType.PARAMETER,
-266        }
+            
245    class Tokenizer(tokens.Tokenizer):
+246        QUOTES = ["'", "$$"]
+247        STRING_ESCAPES = ["\\", "'"]
+248
+249        KEYWORDS = {
+250            **tokens.Tokenizer.KEYWORDS,
+251            "EXCLUDE": TokenType.EXCEPT,
+252            "ILIKE ANY": TokenType.ILIKE_ANY,
+253            "LIKE ANY": TokenType.LIKE_ANY,
+254            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
+255            "PUT": TokenType.COMMAND,
+256            "RENAME": TokenType.REPLACE,
+257            "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ,
+258            "TIMESTAMP_NTZ": TokenType.TIMESTAMP,
+259            "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ,
+260            "TIMESTAMPNTZ": TokenType.TIMESTAMP,
+261            "MINUS": TokenType.EXCEPT,
+262            "SAMPLE": TokenType.TABLE_SAMPLE,
+263        }
+264
+265        SINGLE_TOKENS = {
+266            **tokens.Tokenizer.SINGLE_TOKENS,
+267            "$": TokenType.PARAMETER,
+268        }
 
@@ -971,130 +975,130 @@ Default: "nulls_are_small"
-
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        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 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}"
+            
270    class Generator(generator.Generator):
+271        PARAMETER_TOKEN = "$"
+272        INTEGER_DIVISION = False
+273        MATCHED_BY_SOURCE = False
+274
+275        TRANSFORMS = {
+276            **generator.Generator.TRANSFORMS,  # type: ignore
+277            exp.Array: inline_array_sql,
+278            exp.ArrayConcat: rename_func("ARRAY_CAT"),
+279            exp.ArrayJoin: rename_func("ARRAY_TO_STRING"),
+280            exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this),
+281            exp.DateStrToDate: datestrtodate_sql,
+282            exp.DataType: _datatype_sql,
+283            exp.If: rename_func("IFF"),
+284            exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
+285            exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
+286            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
+287            exp.Matches: rename_func("DECODE"),
+288            exp.StrPosition: lambda self, e: self.func(
+289                "POSITION", e.args.get("substr"), e.this, e.args.get("position")
+290            ),
+291            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
+292            exp.TimeStrToTime: timestrtotime_sql,
+293            exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})",
+294            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
+295            exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"),
+296            exp.UnixToTime: _unix_to_time_sql,
+297            exp.DayOfWeek: rename_func("DAYOFWEEK"),
+298            exp.Min: min_or_least,
+299        }
+300
+301        TYPE_MAPPING = {
+302            **generator.Generator.TYPE_MAPPING,  # type: ignore
+303            exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ",
+304        }
+305
+306        STAR_MAPPING = {
+307            "except": "EXCLUDE",
+308            "replace": "RENAME",
+309        }
+310
+311        PROPERTIES_LOCATION = {
+312            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+313            exp.SetProperty: exp.Properties.Location.UNSUPPORTED,
+314        }
+315
+316        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
+317            return self.binary(expression, "ILIKE ANY")
+318
+319        def likeany_sql(self, expression: exp.LikeAny) -> str:
+320            return self.binary(expression, "LIKE ANY")
+321
+322        def except_op(self, expression):
+323            if not expression.args.get("distinct", False):
+324                self.unsupported("EXCEPT with All is not supported in Snowflake")
+325            return super().except_op(expression)
+326
+327        def intersect_op(self, expression):
+328            if not expression.args.get("distinct", False):
+329                self.unsupported("INTERSECT with All is not supported in Snowflake")
+330            return super().intersect_op(expression)
+331
+332        def values_sql(self, expression: exp.Values) -> str:
+333            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
+334
+335            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
+336            from adding quotes to the column by using the `identify` argument when generating the SQL.
+337            """
+338            alias = expression.args.get("alias")
+339            if alias and alias.args.get("columns"):
+340                expression = expression.transform(
+341                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
+342                    if isinstance(node, exp.Identifier)
+343                    and isinstance(node.parent, exp.TableAlias)
+344                    and node.arg_key == "columns"
+345                    else node,
+346                )
+347                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
+348            return super().values_sql(expression)
+349
+350        def settag_sql(self, expression: exp.SetTag) -> str:
+351            action = "UNSET" if expression.args.get("unset") else "SET"
+352            return f"{action} TAG {self.expressions(expression)}"
+353
+354        def select_sql(self, expression: exp.Select) -> str:
+355            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
+356            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
+357            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
+358            generating the SQL.
+359
+360            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
+361            expression. This might not be true in a case where the same column name can be sourced from another table that can
+362            properly quote but should be true in most cases.
+363            """
+364            values_identifiers = set(
+365                flatten(
+366                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
+367                    for v in expression.find_all(exp.Values)
+368                )
+369            )
+370            if values_identifiers:
+371                expression = expression.transform(
+372                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
+373                    if isinstance(node, exp.Identifier) and node in values_identifiers
+374                    else node,
+375                )
+376                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
+377            return super().select_sql(expression)
+378
+379        def describe_sql(self, expression: exp.Describe) -> str:
+380            # Default to table if kind is unknown
+381            kind_value = expression.args.get("kind") or "TABLE"
+382            kind = f" {kind_value}" if kind_value else ""
+383            this = f" {self.sql(expression, 'this')}"
+384            return f"DESCRIBE{kind}{this}"
+385
+386        def generatedasidentitycolumnconstraint_sql(
+387            self, expression: exp.GeneratedAsIdentityColumnConstraint
+388        ) -> str:
+389            start = expression.args.get("start")
+390            start = f" START {start}" if start else ""
+391            increment = expression.args.get("increment")
+392            increment = f" INCREMENT {increment}" if increment else ""
+393            return f"AUTOINCREMENT{start}{increment}"
 
@@ -1154,8 +1158,8 @@ Default: True
-
314        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
-315            return self.binary(expression, "ILIKE ANY")
+            
316        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
+317            return self.binary(expression, "ILIKE ANY")
 
@@ -1173,8 +1177,8 @@ Default: True
-
317        def likeany_sql(self, expression: exp.LikeAny) -> str:
-318            return self.binary(expression, "LIKE ANY")
+            
319        def likeany_sql(self, expression: exp.LikeAny) -> str:
+320            return self.binary(expression, "LIKE ANY")
 
@@ -1192,10 +1196,10 @@ Default: True
-
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)
+            
322        def except_op(self, expression):
+323            if not expression.args.get("distinct", False):
+324                self.unsupported("EXCEPT with All is not supported in Snowflake")
+325            return super().except_op(expression)
 
@@ -1213,10 +1217,10 @@ Default: True
-
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)
+            
327        def intersect_op(self, expression):
+328            if not expression.args.get("distinct", False):
+329                self.unsupported("INTERSECT with All is not supported in Snowflake")
+330            return super().intersect_op(expression)
 
@@ -1234,23 +1238,23 @@ Default: True
-
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)
+            
332        def values_sql(self, expression: exp.Values) -> str:
+333            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
+334
+335            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
+336            from adding quotes to the column by using the `identify` argument when generating the SQL.
+337            """
+338            alias = expression.args.get("alias")
+339            if alias and alias.args.get("columns"):
+340                expression = expression.transform(
+341                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
+342                    if isinstance(node, exp.Identifier)
+343                    and isinstance(node.parent, exp.TableAlias)
+344                    and node.arg_key == "columns"
+345                    else node,
+346                )
+347                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
+348            return super().values_sql(expression)
 
@@ -1273,9 +1277,9 @@ from adding quotes to the column by using the identify argument whe
-
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)}"
+            
350        def settag_sql(self, expression: exp.SetTag) -> str:
+351            action = "UNSET" if expression.args.get("unset") else "SET"
+352            return f"{action} TAG {self.expressions(expression)}"
 
@@ -1293,30 +1297,30 @@ from adding quotes to the column by using the identify argument whe
-
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)
+            
354        def select_sql(self, expression: exp.Select) -> str:
+355            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
+356            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
+357            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
+358            generating the SQL.
+359
+360            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
+361            expression. This might not be true in a case where the same column name can be sourced from another table that can
+362            properly quote but should be true in most cases.
+363            """
+364            values_identifiers = set(
+365                flatten(
+366                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
+367                    for v in expression.find_all(exp.Values)
+368                )
+369            )
+370            if values_identifiers:
+371                expression = expression.transform(
+372                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
+373                    if isinstance(node, exp.Identifier) and node in values_identifiers
+374                    else node,
+375                )
+376                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
+377            return super().select_sql(expression)
 
@@ -1343,12 +1347,12 @@ properly quote but should be true in most cases.

-
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}"
+            
379        def describe_sql(self, expression: exp.Describe) -> str:
+380            # Default to table if kind is unknown
+381            kind_value = expression.args.get("kind") or "TABLE"
+382            kind = f" {kind_value}" if kind_value else ""
+383            this = f" {self.sql(expression, 'this')}"
+384            return f"DESCRIBE{kind}{this}"
 
@@ -1366,14 +1370,14 @@ properly quote but should be true in most cases.

-
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}"
+            
386        def generatedasidentitycolumnconstraint_sql(
+387            self, expression: exp.GeneratedAsIdentityColumnConstraint
+388        ) -> str:
+389            start = expression.args.get("start")
+390            start = f" START {start}" if start else ""
+391            increment = expression.args.get("increment")
+392            increment = f" INCREMENT {increment}" if increment else ""
+393            return f"AUTOINCREMENT{start}{increment}"
 
diff --git a/docs/sqlglot/dialects/sqlite.html b/docs/sqlglot/dialects/sqlite.html index 369d58c..37cb29d 100644 --- a/docs/sqlglot/dialects/sqlite.html +++ b/docs/sqlglot/dialects/sqlite.html @@ -48,6 +48,9 @@
  • SQLite.Generator
      +
    • + datediff_sql +
    • fetch_sql
    • @@ -180,19 +183,46 @@ 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" + 95 def datediff_sql(self, expression: exp.DateDiff) -> str: + 96 unit = expression.args.get("unit") + 97 unit = unit.name.upper() if unit else "DAY" + 98 + 99 sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))" +100 +101 if unit == "MONTH": +102 sql = f"{sql} / 30.0" +103 elif unit == "YEAR": +104 sql = f"{sql} / 365.0" +105 elif unit == "HOUR": +106 sql = f"{sql} * 24.0" +107 elif unit == "MINUTE": +108 sql = f"{sql} * 1440.0" +109 elif unit == "SECOND": +110 sql = f"{sql} * 86400.0" +111 elif unit == "MILLISECOND": +112 sql = f"{sql} * 86400000.0" +113 elif unit == "MICROSECOND": +114 sql = f"{sql} * 86400000000.0" +115 elif unit == "NANOSECOND": +116 sql = f"{sql} * 8640000000000.0" +117 else: +118 self.unsupported("DATEDIFF unsupported for '{unit}'.") +119 +120 return f"CAST({sql} AS INTEGER)" +121 +122 def fetch_sql(self, expression): +123 return self.limit_sql(exp.Limit(expression=expression.args.get("count"))) +124 +125 def least_sql(self, expression): +126 if len(expression.expressions) > 1: +127 return rename_func("MIN")(self, expression) +128 +129 return self.expressions(expression) +130 +131 def transaction_sql(self, expression): +132 this = expression.this +133 this = f" {this}" if this else "" +134 return f"BEGIN{this} TRANSACTION"
  • @@ -262,19 +292,46 @@
    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" + 96 def datediff_sql(self, expression: exp.DateDiff) -> str: + 97 unit = expression.args.get("unit") + 98 unit = unit.name.upper() if unit else "DAY" + 99 +100 sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))" +101 +102 if unit == "MONTH": +103 sql = f"{sql} / 30.0" +104 elif unit == "YEAR": +105 sql = f"{sql} / 365.0" +106 elif unit == "HOUR": +107 sql = f"{sql} * 24.0" +108 elif unit == "MINUTE": +109 sql = f"{sql} * 1440.0" +110 elif unit == "SECOND": +111 sql = f"{sql} * 86400.0" +112 elif unit == "MILLISECOND": +113 sql = f"{sql} * 86400000.0" +114 elif unit == "MICROSECOND": +115 sql = f"{sql} * 86400000000.0" +116 elif unit == "NANOSECOND": +117 sql = f"{sql} * 8640000000000.0" +118 else: +119 self.unsupported("DATEDIFF unsupported for '{unit}'.") +120 +121 return f"CAST({sql} AS INTEGER)" +122 +123 def fetch_sql(self, expression): +124 return self.limit_sql(exp.Limit(expression=expression.args.get("count"))) +125 +126 def least_sql(self, expression): +127 if len(expression.expressions) > 1: +128 return rename_func("MIN")(self, expression) +129 +130 return self.expressions(expression) +131 +132 def transaction_sql(self, expression): +133 this = expression.this +134 this = f" {this}" if this else "" +135 return f"BEGIN{this} TRANSACTION" @@ -442,19 +499,46 @@ Default: "nulls_are_small" 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" + 96 def datediff_sql(self, expression: exp.DateDiff) -> str: + 97 unit = expression.args.get("unit") + 98 unit = unit.name.upper() if unit else "DAY" + 99 +100 sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))" +101 +102 if unit == "MONTH": +103 sql = f"{sql} / 30.0" +104 elif unit == "YEAR": +105 sql = f"{sql} / 365.0" +106 elif unit == "HOUR": +107 sql = f"{sql} * 24.0" +108 elif unit == "MINUTE": +109 sql = f"{sql} * 1440.0" +110 elif unit == "SECOND": +111 sql = f"{sql} * 86400.0" +112 elif unit == "MILLISECOND": +113 sql = f"{sql} * 86400000.0" +114 elif unit == "MICROSECOND": +115 sql = f"{sql} * 86400000000.0" +116 elif unit == "NANOSECOND": +117 sql = f"{sql} * 8640000000000.0" +118 else: +119 self.unsupported("DATEDIFF unsupported for '{unit}'.") +120 +121 return f"CAST({sql} AS INTEGER)" +122 +123 def fetch_sql(self, expression): +124 return self.limit_sql(exp.Limit(expression=expression.args.get("count"))) +125 +126 def least_sql(self, expression): +127 if len(expression.expressions) > 1: +128 return rename_func("MIN")(self, expression) +129 +130 return self.expressions(expression) +131 +132 def transaction_sql(self, expression): +133 this = expression.this +134 this = f" {this}" if this else "" +135 return f"BEGIN{this} TRANSACTION" @@ -503,6 +587,49 @@ Default: True +
    + +
    + + def + datediff_sql(self, expression: sqlglot.expressions.DateDiff) -> str: + + + +
    + +
     96        def datediff_sql(self, expression: exp.DateDiff) -> str:
    + 97            unit = expression.args.get("unit")
    + 98            unit = unit.name.upper() if unit else "DAY"
    + 99
    +100            sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))"
    +101
    +102            if unit == "MONTH":
    +103                sql = f"{sql} / 30.0"
    +104            elif unit == "YEAR":
    +105                sql = f"{sql} / 365.0"
    +106            elif unit == "HOUR":
    +107                sql = f"{sql} * 24.0"
    +108            elif unit == "MINUTE":
    +109                sql = f"{sql} * 1440.0"
    +110            elif unit == "SECOND":
    +111                sql = f"{sql} * 86400.0"
    +112            elif unit == "MILLISECOND":
    +113                sql = f"{sql} * 86400000.0"
    +114            elif unit == "MICROSECOND":
    +115                sql = f"{sql} * 86400000000.0"
    +116            elif unit == "NANOSECOND":
    +117                sql = f"{sql} * 8640000000000.0"
    +118            else:
    +119                self.unsupported("DATEDIFF unsupported for '{unit}'.")
    +120
    +121            return f"CAST({sql} AS INTEGER)"
    +
    + + + + +
    @@ -514,8 +641,8 @@ Default: True
    -
    96        def fetch_sql(self, expression):
    -97            return self.limit_sql(exp.Limit(expression=expression.args.get("count")))
    +            
    123        def fetch_sql(self, expression):
    +124            return self.limit_sql(exp.Limit(expression=expression.args.get("count")))
     
    @@ -533,11 +660,11 @@ Default: True
    -
     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)
    +            
    126        def least_sql(self, expression):
    +127            if len(expression.expressions) > 1:
    +128                return rename_func("MIN")(self, expression)
    +129
    +130            return self.expressions(expression)
     
    @@ -555,10 +682,10 @@ Default: True
    -
    105        def transaction_sql(self, expression):
    -106            this = expression.this
    -107            this = f" {this}" if this else ""
    -108            return f"BEGIN{this} TRANSACTION"
    +            
    132        def transaction_sql(self, expression):
    +133            this = expression.this
    +134            this = f" {this}" if this else ""
    +135            return f"BEGIN{this} TRANSACTION"
     
    diff --git a/docs/sqlglot/dialects/tsql.html b/docs/sqlglot/dialects/tsql.html index 89139c7..b27f58e 100644 --- a/docs/sqlglot/dialects/tsql.html +++ b/docs/sqlglot/dialects/tsql.html @@ -336,222 +336,220 @@
    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 # 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 RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - { # type: ignore -309 TokenType.TABLE, -310 *parser.Parser.TYPE_TOKENS, # type: ignore -311 } -312 -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, 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_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 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 # 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 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 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 } +251 "DATETIME2": TokenType.DATETIME, +252 "DATETIMEOFFSET": TokenType.TIMESTAMPTZ, +253 "DECLARE": TokenType.COMMAND, +254 "IMAGE": TokenType.IMAGE, +255 "MONEY": TokenType.MONEY, +256 "NTEXT": TokenType.TEXT, +257 "NVARCHAR(MAX)": TokenType.TEXT, +258 "PRINT": TokenType.COMMAND, +259 "PROC": TokenType.PROCEDURE, +260 "REAL": TokenType.FLOAT, +261 "ROWVERSION": TokenType.ROWVERSION, +262 "SMALLDATETIME": TokenType.DATETIME, +263 "SMALLMONEY": TokenType.SMALLMONEY, +264 "SQL_VARIANT": TokenType.VARIANT, +265 "TIME": TokenType.TIMESTAMP, +266 "TOP": TokenType.TOP, +267 "UNIQUEIDENTIFIER": TokenType.UNIQUEIDENTIFIER, +268 "VARCHAR(MAX)": TokenType.TEXT, +269 "XML": TokenType.XML, +270 } +271 +272 # TSQL allows @, # to appear as a variable/identifier prefix +273 SINGLE_TOKENS = tokens.Tokenizer.SINGLE_TOKENS.copy() +274 SINGLE_TOKENS.pop("@") +275 SINGLE_TOKENS.pop("#") +276 +277 class Parser(parser.Parser): +278 FUNCTIONS = { +279 **parser.Parser.FUNCTIONS, # type: ignore +280 "CHARINDEX": lambda args: exp.StrPosition( +281 this=seq_get(args, 1), +282 substr=seq_get(args, 0), +283 position=seq_get(args, 2), +284 ), +285 "ISNULL": exp.Coalesce.from_arg_list, +286 "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL), +287 "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL), +288 "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True), +289 "DATEPART": _format_time_lambda(exp.TimeToStr), +290 "GETDATE": exp.CurrentTimestamp.from_arg_list, +291 "SYSDATETIME": exp.CurrentTimestamp.from_arg_list, +292 "IIF": exp.If.from_arg_list, +293 "LEN": exp.Length.from_arg_list, +294 "REPLICATE": exp.Repeat.from_arg_list, +295 "JSON_VALUE": exp.JSONExtractScalar.from_arg_list, +296 "FORMAT": _parse_format, +297 "EOMONTH": _parse_eomonth, +298 } +299 +300 VAR_LENGTH_DATATYPES = { +301 DataType.Type.NVARCHAR, +302 DataType.Type.VARCHAR, +303 DataType.Type.CHAR, +304 DataType.Type.NCHAR, +305 } +306 +307 RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - { # type: ignore +308 TokenType.TABLE, +309 *parser.Parser.TYPE_TOKENS, # type: ignore +310 } +311 +312 STATEMENT_PARSERS = { +313 **parser.Parser.STATEMENT_PARSERS, # type: ignore +314 TokenType.END: lambda self: self._parse_command(), +315 } +316 +317 def _parse_system_time(self) -> t.Optional[exp.Expression]: +318 if not self._match_text_seq("FOR", "SYSTEM_TIME"): +319 return None +320 +321 if self._match_text_seq("AS", "OF"): +322 system_time = self.expression( +323 exp.SystemTime, this=self._parse_bitwise(), kind="AS OF" +324 ) +325 elif self._match_set((TokenType.FROM, TokenType.BETWEEN)): +326 kind = self._prev.text +327 this = self._parse_bitwise() +328 self._match_texts(("TO", "AND")) +329 expression = self._parse_bitwise() +330 system_time = self.expression( +331 exp.SystemTime, this=this, expression=expression, kind=kind +332 ) +333 elif self._match_text_seq("CONTAINED", "IN"): +334 args = self._parse_wrapped_csv(self._parse_bitwise) +335 system_time = self.expression( +336 exp.SystemTime, +337 this=seq_get(args, 0), +338 expression=seq_get(args, 1), +339 kind="CONTAINED IN", +340 ) +341 elif self._match(TokenType.ALL): +342 system_time = self.expression(exp.SystemTime, kind="ALL") +343 else: +344 system_time = None +345 self.raise_error("Unable to parse FOR SYSTEM_TIME clause") +346 +347 return system_time +348 +349 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: +350 table = super()._parse_table_parts(schema=schema) +351 table.set("system_time", self._parse_system_time()) +352 return table +353 +354 def _parse_returns(self) -> exp.Expression: +355 table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS) +356 returns = super()._parse_returns() +357 returns.set("table", table) +358 return returns +359 +360 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: +361 to = self._parse_types() +362 self._match(TokenType.COMMA) +363 this = self._parse_conjunction() +364 +365 if not to or not this: +366 return None +367 +368 # Retrieve length of datatype and override to default if not specified +369 if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES: +370 to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False) +371 +372 # Check whether a conversion with format is applicable +373 if self._match(TokenType.COMMA): +374 format_val = self._parse_number() +375 format_val_name = format_val.name if format_val else "" +376 +377 if format_val_name not in TSQL.convert_format_mapping: +378 raise ValueError( +379 f"CONVERT function at T-SQL does not support format style {format_val_name}" +380 ) +381 +382 format_norm = exp.Literal.string(TSQL.convert_format_mapping[format_val_name]) +383 +384 # Check whether the convert entails a string to date format +385 if to.this == DataType.Type.DATE: +386 return self.expression(exp.StrToDate, this=this, format=format_norm) +387 # Check whether the convert entails a string to datetime format +388 elif to.this == DataType.Type.DATETIME: +389 return self.expression(exp.StrToTime, this=this, format=format_norm) +390 # Check whether the convert entails a date to string format +391 elif to.this in self.VAR_LENGTH_DATATYPES: +392 return self.expression( +393 exp.Cast if strict else exp.TryCast, +394 to=to, +395 this=self.expression(exp.TimeToStr, this=this, format=format_norm), +396 ) +397 elif to.this == DataType.Type.TEXT: +398 return self.expression(exp.TimeToStr, this=this, format=format_norm) +399 +400 # Entails a simple cast without any format requirement +401 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +402 +403 def _parse_user_defined_function( +404 self, kind: t.Optional[TokenType] = None +405 ) -> t.Optional[exp.Expression]: +406 this = super()._parse_user_defined_function(kind=kind) +407 +408 if ( +409 kind == TokenType.FUNCTION +410 or isinstance(this, exp.UserDefinedFunction) +411 or self._match(TokenType.ALIAS, advance=False) +412 ): +413 return this +414 +415 expressions = self._parse_csv(self._parse_function_parameter) +416 return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions) +417 +418 class Generator(generator.Generator): +419 LOCKING_READS_SUPPORTED = True +420 +421 TYPE_MAPPING = { +422 **generator.Generator.TYPE_MAPPING, # type: ignore +423 exp.DataType.Type.INT: "INTEGER", +424 exp.DataType.Type.DECIMAL: "NUMERIC", +425 exp.DataType.Type.DATETIME: "DATETIME2", +426 exp.DataType.Type.VARIANT: "SQL_VARIANT", +427 } +428 +429 TRANSFORMS = { +430 **generator.Generator.TRANSFORMS, # type: ignore +431 exp.DateAdd: generate_date_delta_with_unit_sql, +432 exp.DateDiff: generate_date_delta_with_unit_sql, +433 exp.CurrentDate: rename_func("GETDATE"), +434 exp.CurrentTimestamp: rename_func("GETDATE"), +435 exp.If: rename_func("IIF"), +436 exp.NumberToStr: _format_sql, +437 exp.TimeToStr: _format_sql, +438 exp.GroupConcat: _string_agg_sql, +439 exp.Min: min_or_least, +440 } +441 +442 TRANSFORMS.pop(exp.ReturnsProperty) 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 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}" +444 def systemtime_sql(self, expression: exp.SystemTime) -> str: +445 kind = expression.args["kind"] +446 if kind == "ALL": +447 return "FOR SYSTEM_TIME ALL" +448 +449 start = self.sql(expression, "this") +450 if kind == "AS OF": +451 return f"FOR SYSTEM_TIME AS OF {start}" +452 +453 end = self.sql(expression, "expression") +454 if kind == "FROM": +455 return f"FOR SYSTEM_TIME FROM {start} TO {end}" +456 if kind == "BETWEEN": +457 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" +458 +459 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {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')}" +461 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: +462 table = expression.args.get("table") +463 table = f"{table} " if table else "" +464 return f"RETURNS {table}{self.sql(expression, 'this')}"
    @@ -704,222 +702,220 @@ 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("#") -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 RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - { # type: ignore -310 TokenType.TABLE, -311 *parser.Parser.TYPE_TOKENS, # type: ignore -312 } -313 -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, 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_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 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 # 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 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 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 } +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 # 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 RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - { # type: ignore +309 TokenType.TABLE, +310 *parser.Parser.TYPE_TOKENS, # type: ignore +311 } +312 +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, 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_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 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 # 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 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 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.INT: "INTEGER", +425 exp.DataType.Type.DECIMAL: "NUMERIC", +426 exp.DataType.Type.DATETIME: "DATETIME2", +427 exp.DataType.Type.VARIANT: "SQL_VARIANT", +428 } +429 +430 TRANSFORMS = { +431 **generator.Generator.TRANSFORMS, # type: ignore +432 exp.DateAdd: generate_date_delta_with_unit_sql, +433 exp.DateDiff: generate_date_delta_with_unit_sql, +434 exp.CurrentDate: rename_func("GETDATE"), +435 exp.CurrentTimestamp: rename_func("GETDATE"), +436 exp.If: rename_func("IIF"), +437 exp.NumberToStr: _format_sql, +438 exp.TimeToStr: _format_sql, +439 exp.GroupConcat: _string_agg_sql, +440 exp.Min: min_or_least, +441 } +442 +443 TRANSFORMS.pop(exp.ReturnsProperty) 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 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}" +445 def systemtime_sql(self, expression: exp.SystemTime) -> str: +446 kind = expression.args["kind"] +447 if kind == "ALL": +448 return "FOR SYSTEM_TIME ALL" +449 +450 start = self.sql(expression, "this") +451 if kind == "AS OF": +452 return f"FOR SYSTEM_TIME AS OF {start}" +453 +454 end = self.sql(expression, "expression") +455 if kind == "FROM": +456 return f"FOR SYSTEM_TIME FROM {start} TO {end}" +457 if kind == "BETWEEN": +458 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" +459 +460 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {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')}" +462 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: +463 table = expression.args.get("table") +464 table = f"{table} " if table else "" +465 return f"RETURNS {table}{self.sql(expression, 'this')}"
    @@ -960,32 +956,31 @@ 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("#") +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 # 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("#") @@ -1013,146 +1008,146 @@ -
    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        RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - {  # type: ignore
    -310            TokenType.TABLE,
    -311            *parser.Parser.TYPE_TOKENS,  # type: ignore
    -312        }
    -313
    -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, 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_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        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            # 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                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        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)
    +            
    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        RETURNS_TABLE_TOKENS = parser.Parser.ID_VAR_TOKENS - {  # type: ignore
    +309            TokenType.TABLE,
    +310            *parser.Parser.TYPE_TOKENS,  # type: ignore
    +311        }
    +312
    +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, 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_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        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            # 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                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        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)
     
    @@ -1209,54 +1204,53 @@ Default: "nulls_are_small"
    -
    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        }
    +            
    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.INT: "INTEGER",
    +425            exp.DataType.Type.DECIMAL: "NUMERIC",
    +426            exp.DataType.Type.DATETIME: "DATETIME2",
    +427            exp.DataType.Type.VARIANT: "SQL_VARIANT",
    +428        }
    +429
    +430        TRANSFORMS = {
    +431            **generator.Generator.TRANSFORMS,  # type: ignore
    +432            exp.DateAdd: generate_date_delta_with_unit_sql,
    +433            exp.DateDiff: generate_date_delta_with_unit_sql,
    +434            exp.CurrentDate: rename_func("GETDATE"),
    +435            exp.CurrentTimestamp: rename_func("GETDATE"),
    +436            exp.If: rename_func("IIF"),
    +437            exp.NumberToStr: _format_sql,
    +438            exp.TimeToStr: _format_sql,
    +439            exp.GroupConcat: _string_agg_sql,
    +440            exp.Min: min_or_least,
    +441        }
    +442
    +443        TRANSFORMS.pop(exp.ReturnsProperty)
     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            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}"
    +445        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    +446            kind = expression.args["kind"]
    +447            if kind == "ALL":
    +448                return "FOR SYSTEM_TIME ALL"
    +449
    +450            start = self.sql(expression, "this")
    +451            if kind == "AS OF":
    +452                return f"FOR SYSTEM_TIME AS OF {start}"
    +453
    +454            end = self.sql(expression, "expression")
    +455            if kind == "FROM":
    +456                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    +457            if kind == "BETWEEN":
    +458                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +459
    +460            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {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')}"
    +462        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    +463            table = expression.args.get("table")
    +464            table = f"{table} " if table else ""
    +465            return f"RETURNS {table}{self.sql(expression, 'this')}"
     
    @@ -1316,22 +1310,22 @@ Default: True
    -
    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            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})"
    +            
    445        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    +446            kind = expression.args["kind"]
    +447            if kind == "ALL":
    +448                return "FOR SYSTEM_TIME ALL"
    +449
    +450            start = self.sql(expression, "this")
    +451            if kind == "AS OF":
    +452                return f"FOR SYSTEM_TIME AS OF {start}"
    +453
    +454            end = self.sql(expression, "expression")
    +455            if kind == "FROM":
    +456                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    +457            if kind == "BETWEEN":
    +458                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +459
    +460            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
     
    @@ -1349,10 +1343,10 @@ Default: True
    -
    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')}"
    +            
    462        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    +463            table = expression.args.get("table")
    +464            table = f"{table} " if table else ""
    +465            return f"RETURNS {table}{self.sql(expression, 'this')}"
     
    diff --git a/docs/sqlglot/expressions.html b/docs/sqlglot/expressions.html index a920e22..de9d437 100644 --- a/docs/sqlglot/expressions.html +++ b/docs/sqlglot/expressions.html @@ -1298,15 +1298,27 @@
  • INT
  • +
  • + UINT +
  • TINYINT
  • +
  • + UTINYINT +
  • SMALLINT
  • +
  • + USMALLINT +
  • BIGINT
  • +
  • + UBIGINT +
  • FLOAT
  • @@ -1316,6 +1328,9 @@
  • DECIMAL
  • +
  • + BIT +
  • BOOLEAN
  • @@ -1735,6 +1750,12 @@
    + +
  • + ArrayOverlaps +
      +
    +
  • Unary @@ -1921,6 +1942,12 @@
    +
  • +
  • + ArrayContained +
      +
    +
  • ArrayFilter @@ -5565,2254 +5592,2268 @@ SQL expressions, such as sqlglot.expressions.select< 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 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, +2659 UINT = auto() +2660 TINYINT = auto() +2661 UTINYINT = auto() +2662 SMALLINT = auto() +2663 USMALLINT = auto() +2664 BIGINT = auto() +2665 UBIGINT = auto() +2666 FLOAT = auto() +2667 DOUBLE = auto() +2668 DECIMAL = auto() +2669 BIT = auto() +2670 BOOLEAN = auto() +2671 JSON = auto() +2672 JSONB = auto() +2673 INTERVAL = auto() +2674 TIME = auto() +2675 TIMESTAMP = auto() +2676 TIMESTAMPTZ = auto() +2677 TIMESTAMPLTZ = auto() +2678 DATE = auto() +2679 DATETIME = auto() +2680 ARRAY = auto() +2681 MAP = auto() +2682 UUID = auto() +2683 GEOGRAPHY = auto() +2684 GEOMETRY = auto() +2685 STRUCT = auto() +2686 NULLABLE = auto() +2687 HLLSKETCH = auto() +2688 HSTORE = auto() +2689 SUPER = auto() +2690 SERIAL = auto() +2691 SMALLSERIAL = auto() +2692 BIGSERIAL = auto() +2693 XML = auto() +2694 UNIQUEIDENTIFIER = auto() +2695 MONEY = auto() +2696 SMALLMONEY = auto() +2697 ROWVERSION = auto() +2698 IMAGE = auto() +2699 VARIANT = auto() +2700 OBJECT = auto() +2701 INET = auto() +2702 NULL = auto() +2703 UNKNOWN = auto() # Sentinel value, useful for type annotation +2704 +2705 TEXT_TYPES = { +2706 Type.CHAR, +2707 Type.NCHAR, +2708 Type.VARCHAR, +2709 Type.NVARCHAR, +2710 Type.TEXT, +2711 } +2712 +2713 INTEGER_TYPES = { +2714 Type.INT, +2715 Type.TINYINT, +2716 Type.SMALLINT, +2717 Type.BIGINT, 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 +2720 FLOAT_TYPES = { +2721 Type.FLOAT, +2722 Type.DOUBLE, +2723 } +2724 +2725 NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES} +2726 +2727 TEMPORAL_TYPES = { +2728 Type.TIMESTAMP, +2729 Type.TIMESTAMPTZ, +2730 Type.TIMESTAMPLTZ, +2731 Type.DATE, +2732 Type.DATETIME, +2733 } +2734 +2735 @classmethod +2736 def build( +2737 cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs +2738 ) -> DataType: +2739 from sqlglot import parse_one +2740 +2741 if isinstance(dtype, str): +2742 if dtype.upper() in cls.Type.__members__: +2743 data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()]) +2744 else: +2745 data_type_exp = parse_one(dtype, read=dialect, into=DataType) +2746 if data_type_exp is None: +2747 raise ValueError(f"Unparsable data type value: {dtype}") +2748 elif isinstance(dtype, DataType.Type): +2749 data_type_exp = DataType(this=dtype) +2750 elif isinstance(dtype, DataType): +2751 return dtype +2752 else: +2753 raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type") +2754 return DataType(**{**data_type_exp.args, **kwargs}) +2755 +2756 def is_type(self, dtype: DataType.Type) -> bool: +2757 return self.this == dtype 2758 2759 -2760class StructKwarg(Expression): -2761 arg_types = {"this": True, "expression": True} -2762 +2760# https://www.postgresql.org/docs/15/datatype-pseudo.html +2761class PseudoType(Expression): +2762 pass 2763 -2764# WHERE x <OP> EXISTS|ALL|ANY|SOME(SELECT ...) -2765class SubqueryPredicate(Predicate): -2766 pass +2764 +2765class StructKwarg(Expression): +2766 arg_types = {"this": True, "expression": True} 2767 2768 -2769class All(SubqueryPredicate): -2770 pass -2771 +2769# WHERE x <OP> EXISTS|ALL|ANY|SOME(SELECT ...) +2770class SubqueryPredicate(Predicate): +2771 pass 2772 -2773class Any(SubqueryPredicate): -2774 pass -2775 +2773 +2774class All(SubqueryPredicate): +2775 pass 2776 -2777class Exists(SubqueryPredicate): -2778 pass -2779 +2777 +2778class Any(SubqueryPredicate): +2779 pass 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} +2781 +2782class Exists(SubqueryPredicate): +2783 pass +2784 2785 -2786 -2787class Transaction(Expression): -2788 arg_types = {"this": False, "modes": False} -2789 +2786# Commands to interact with the databases or engines. For most of the command +2787# expressions we parse whatever comes after the command's name as a string. +2788class Command(Expression): +2789 arg_types = {"this": True, "expression": False} 2790 -2791class Commit(Expression): -2792 arg_types = {"chain": False} -2793 +2791 +2792class Transaction(Expression): +2793 arg_types = {"this": False, "modes": False} 2794 -2795class Rollback(Expression): -2796 arg_types = {"savepoint": False} -2797 +2795 +2796class Commit(Expression): +2797 arg_types = {"chain": False} 2798 -2799class AlterTable(Expression): -2800 arg_types = {"this": True, "actions": True, "exists": False} -2801 +2799 +2800class Rollback(Expression): +2801 arg_types = {"savepoint": False} 2802 -2803class AddConstraint(Expression): -2804 arg_types = {"this": False, "expression": False, "enforced": False} -2805 +2803 +2804class AlterTable(Expression): +2805 arg_types = {"this": True, "actions": True, "exists": False} 2806 -2807class DropPartition(Expression): -2808 arg_types = {"expressions": True, "exists": False} -2809 +2807 +2808class AddConstraint(Expression): +2809 arg_types = {"this": False, "expression": False, "enforced": False} 2810 -2811# Binary expressions like (ADD a b) -2812class Binary(Expression): -2813 arg_types = {"this": True, "expression": True} +2811 +2812class DropPartition(Expression): +2813 arg_types = {"expressions": True, "exists": False} 2814 -2815 @property -2816 def left(self): -2817 return self.this -2818 -2819 @property -2820 def right(self): -2821 return self.expression -2822 +2815 +2816# Binary expressions like (ADD a b) +2817class Binary(Expression): +2818 arg_types = {"this": True, "expression": True} +2819 +2820 @property +2821 def left(self): +2822 return self.this 2823 -2824class Add(Binary): -2825 pass -2826 +2824 @property +2825 def right(self): +2826 return self.expression 2827 -2828class Connector(Binary, Condition): -2829 pass -2830 +2828 +2829class Add(Binary): +2830 pass 2831 -2832class And(Connector): -2833 pass -2834 +2832 +2833class Connector(Binary, Condition): +2834 pass 2835 -2836class Or(Connector): -2837 pass -2838 +2836 +2837class And(Connector): +2838 pass 2839 -2840class BitwiseAnd(Binary): -2841 pass -2842 +2840 +2841class Or(Connector): +2842 pass 2843 -2844class BitwiseLeftShift(Binary): -2845 pass -2846 +2844 +2845class BitwiseAnd(Binary): +2846 pass 2847 -2848class BitwiseOr(Binary): -2849 pass -2850 +2848 +2849class BitwiseLeftShift(Binary): +2850 pass 2851 -2852class BitwiseRightShift(Binary): -2853 pass -2854 +2852 +2853class BitwiseOr(Binary): +2854 pass 2855 -2856class BitwiseXor(Binary): -2857 pass -2858 +2856 +2857class BitwiseRightShift(Binary): +2858 pass 2859 -2860class Div(Binary): -2861 pass -2862 +2860 +2861class BitwiseXor(Binary): +2862 pass 2863 -2864class FloatDiv(Binary): -2865 pass -2866 +2864 +2865class Div(Binary): +2866 pass 2867 -2868class Overlaps(Binary): -2869 pass -2870 +2868 +2869class FloatDiv(Binary): +2870 pass 2871 -2872class Dot(Binary): -2873 @property -2874 def name(self) -> str: -2875 return self.expression.name +2872 +2873class Overlaps(Binary): +2874 pass +2875 2876 -2877 -2878class DPipe(Binary): -2879 pass -2880 +2877class Dot(Binary): +2878 @property +2879 def name(self) -> str: +2880 return self.expression.name 2881 -2882class EQ(Binary, Predicate): -2883 pass -2884 +2882 +2883class DPipe(Binary): +2884 pass 2885 -2886class NullSafeEQ(Binary, Predicate): -2887 pass -2888 +2886 +2887class EQ(Binary, Predicate): +2888 pass 2889 -2890class NullSafeNEQ(Binary, Predicate): -2891 pass -2892 +2890 +2891class NullSafeEQ(Binary, Predicate): +2892 pass 2893 -2894class Distance(Binary): -2895 pass -2896 +2894 +2895class NullSafeNEQ(Binary, Predicate): +2896 pass 2897 -2898class Escape(Binary): -2899 pass -2900 +2898 +2899class Distance(Binary): +2900 pass 2901 -2902class Glob(Binary, Predicate): -2903 pass -2904 +2902 +2903class Escape(Binary): +2904 pass 2905 -2906class GT(Binary, Predicate): -2907 pass -2908 +2906 +2907class Glob(Binary, Predicate): +2908 pass 2909 -2910class GTE(Binary, Predicate): -2911 pass -2912 +2910 +2911class GT(Binary, Predicate): +2912 pass 2913 -2914class ILike(Binary, Predicate): -2915 pass -2916 +2914 +2915class GTE(Binary, Predicate): +2916 pass 2917 -2918class ILikeAny(Binary, Predicate): -2919 pass -2920 +2918 +2919class ILike(Binary, Predicate): +2920 pass 2921 -2922class IntDiv(Binary): -2923 pass -2924 +2922 +2923class ILikeAny(Binary, Predicate): +2924 pass 2925 -2926class Is(Binary, Predicate): -2927 pass -2928 +2926 +2927class IntDiv(Binary): +2928 pass 2929 -2930class Kwarg(Binary): -2931 """Kwarg in special functions like func(kwarg => y).""" -2932 +2930 +2931class Is(Binary, Predicate): +2932 pass 2933 -2934class Like(Binary, Predicate): -2935 pass -2936 +2934 +2935class Kwarg(Binary): +2936 """Kwarg in special functions like func(kwarg => y).""" 2937 -2938class LikeAny(Binary, Predicate): -2939 pass -2940 +2938 +2939class Like(Binary, Predicate): +2940 pass 2941 -2942class LT(Binary, Predicate): -2943 pass -2944 +2942 +2943class LikeAny(Binary, Predicate): +2944 pass 2945 -2946class LTE(Binary, Predicate): -2947 pass -2948 +2946 +2947class LT(Binary, Predicate): +2948 pass 2949 -2950class Mod(Binary): -2951 pass -2952 +2950 +2951class LTE(Binary, Predicate): +2952 pass 2953 -2954class Mul(Binary): -2955 pass -2956 +2954 +2955class Mod(Binary): +2956 pass 2957 -2958class NEQ(Binary, Predicate): -2959 pass -2960 +2958 +2959class Mul(Binary): +2960 pass 2961 -2962class SimilarTo(Binary, Predicate): -2963 pass -2964 +2962 +2963class NEQ(Binary, Predicate): +2964 pass 2965 -2966class Slice(Binary): -2967 arg_types = {"this": False, "expression": False} -2968 +2966 +2967class SimilarTo(Binary, Predicate): +2968 pass 2969 -2970class Sub(Binary): -2971 pass -2972 +2970 +2971class Slice(Binary): +2972 arg_types = {"this": False, "expression": False} 2973 -2974# Unary Expressions -2975# (NOT a) -2976class Unary(Expression): -2977 pass +2974 +2975class Sub(Binary): +2976 pass +2977 2978 -2979 -2980class BitwiseNot(Unary): -2981 pass +2979class ArrayOverlaps(Binary): +2980 pass +2981 2982 -2983 -2984class Not(Unary, Condition): -2985 pass -2986 +2983# Unary Expressions +2984# (NOT a) +2985class Unary(Expression): +2986 pass 2987 -2988class Paren(Unary, Condition): -2989 arg_types = {"this": True, "with": False} -2990 +2988 +2989class BitwiseNot(Unary): +2990 pass 2991 -2992class Neg(Unary): -2993 pass -2994 +2992 +2993class Not(Unary, Condition): +2994 pass 2995 -2996# Special Functions -2997class Alias(Expression): -2998 arg_types = {"this": True, "alias": False} +2996 +2997class Paren(Unary, Condition): +2998 arg_types = {"this": True, "with": False} 2999 -3000 @property -3001 def output_name(self): -3002 return self.alias +3000 +3001class Neg(Unary): +3002 pass 3003 3004 -3005class Aliases(Expression): -3006 arg_types = {"this": True, "expressions": True} -3007 -3008 @property -3009 def aliases(self): -3010 return self.expressions -3011 +3005# Special Functions +3006class Alias(Expression): +3007 arg_types = {"this": True, "alias": False} +3008 +3009 @property +3010 def output_name(self): +3011 return self.alias 3012 -3013class AtTimeZone(Expression): -3014 arg_types = {"this": True, "zone": True} -3015 +3013 +3014class Aliases(Expression): +3015 arg_types = {"this": True, "expressions": True} 3016 -3017class Between(Predicate): -3018 arg_types = {"this": True, "low": True, "high": True} -3019 +3017 @property +3018 def aliases(self): +3019 return self.expressions 3020 -3021class Bracket(Condition): -3022 arg_types = {"this": True, "expressions": True} -3023 +3021 +3022class AtTimeZone(Expression): +3023 arg_types = {"this": True, "zone": True} 3024 -3025class Distinct(Expression): -3026 arg_types = {"expressions": False, "on": False} -3027 +3025 +3026class Between(Predicate): +3027 arg_types = {"this": True, "low": True, "high": True} 3028 -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 +3029 +3030class Bracket(Condition): +3031 arg_types = {"this": True, "expressions": True} +3032 +3033 +3034class Distinct(Expression): +3035 arg_types = {"expressions": False, "on": False} +3036 +3037 +3038class In(Predicate): +3039 arg_types = { +3040 "this": True, +3041 "expressions": False, +3042 "query": False, +3043 "unnest": False, +3044 "field": False, +3045 "is_global": False, +3046 } +3047 +3048 +3049class TimeUnit(Expression): +3050 """Automatically converts unit arg into a var.""" +3051 +3052 arg_types = {"unit": False} 3053 -3054class Interval(TimeUnit): -3055 arg_types = {"this": False, "unit": False} -3056 -3057 -3058class IgnoreNulls(Expression): -3059 pass -3060 +3054 def __init__(self, **args): +3055 unit = args.get("unit") +3056 if isinstance(unit, Column): +3057 args["unit"] = Var(this=unit.name) +3058 elif isinstance(unit, Week): +3059 unit.set("this", Var(this=unit.this.name)) +3060 super().__init__(**args) 3061 -3062class RespectNulls(Expression): -3063 pass -3064 +3062 +3063class Interval(TimeUnit): +3064 arg_types = {"this": False, "unit": False} 3065 -3066# Functions -3067class Func(Condition): -3068 """ -3069 The base class for all function expressions. +3066 +3067class IgnoreNulls(Expression): +3068 pass +3069 3070 -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 """ +3071class RespectNulls(Expression): +3072 pass +3073 +3074 +3075# Functions +3076class Func(Condition): +3077 """ +3078 The base class for all function expressions. 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 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 +3080 Attributes: +3081 is_var_len_args (bool): if set to True the last argument defined in arg_types will be +3082 treated as a variable length argument and the argument's value will be stored as a list. +3083 _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items) +3084 for this function expression. These values are used to map this node to a name during parsing +3085 as well as to provide the function's name during SQL string generation. By default the SQL +3086 name is set to the expression's class name transformed to snake case. +3087 """ +3088 +3089 is_var_len_args = False +3090 +3091 @classmethod +3092 def from_arg_list(cls, args): +3093 if cls.is_var_len_args: +3094 all_arg_keys = list(cls.arg_types) +3095 # If this function supports variable length argument treat the last argument as such. +3096 non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys +3097 num_non_var = len(non_var_len_arg_keys) +3098 +3099 args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)} +3100 args_dict[all_arg_keys[-1]] = args[num_non_var:] +3101 else: +3102 args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)} +3103 +3104 return cls(**args_dict) +3105 +3106 @classmethod +3107 def sql_names(cls): +3108 if cls is Func: +3109 raise NotImplementedError( +3110 "SQL name is only supported by concrete function implementations" +3111 ) +3112 if "_sql_names" not in cls.__dict__: +3113 cls._sql_names = [camel_to_snake_case(cls.__name__)] +3114 return cls._sql_names 3115 -3116class AggFunc(Func): -3117 pass -3118 +3116 @classmethod +3117 def sql_name(cls): +3118 return cls.sql_names()[0] 3119 -3120class Abs(Func): -3121 pass -3122 +3120 @classmethod +3121 def default_parser_mappings(cls): +3122 return {name: cls.from_arg_list for name in cls.sql_names()} 3123 -3124class Anonymous(Func): -3125 arg_types = {"this": True, "expressions": False} -3126 is_var_len_args = True +3124 +3125class AggFunc(Func): +3126 pass 3127 3128 -3129class ApproxDistinct(AggFunc): -3130 arg_types = {"this": True, "accuracy": False} +3129class Abs(Func): +3130 pass 3131 3132 -3133class Array(Func): -3134 arg_types = {"expressions": False} +3133class Anonymous(Func): +3134 arg_types = {"this": True, "expressions": False} 3135 is_var_len_args = True 3136 3137 -3138class GenerateSeries(Func): -3139 arg_types = {"start": True, "end": True, "step": False} +3138class ApproxDistinct(AggFunc): +3139 arg_types = {"this": True, "accuracy": False} 3140 3141 -3142class ArrayAgg(AggFunc): -3143 pass -3144 +3142class Array(Func): +3143 arg_types = {"expressions": False} +3144 is_var_len_args = True 3145 -3146class ArrayAll(Func): -3147 arg_types = {"this": True, "expression": True} -3148 +3146 +3147class GenerateSeries(Func): +3148 arg_types = {"start": True, "end": True, "step": False} 3149 -3150class ArrayAny(Func): -3151 arg_types = {"this": True, "expression": True} -3152 +3150 +3151class ArrayAgg(AggFunc): +3152 pass 3153 -3154class ArrayConcat(Func): -3155 arg_types = {"this": True, "expressions": False} -3156 is_var_len_args = True +3154 +3155class ArrayAll(Func): +3156 arg_types = {"this": True, "expression": True} 3157 3158 -3159class ArrayContains(Func): +3159class ArrayAny(Func): 3160 arg_types = {"this": True, "expression": True} 3161 3162 -3163class ArrayFilter(Func): -3164 arg_types = {"this": True, "expression": True} -3165 _sql_names = ["FILTER", "ARRAY_FILTER"] +3163class ArrayConcat(Func): +3164 arg_types = {"this": True, "expressions": False} +3165 is_var_len_args = True 3166 3167 -3168class ArrayJoin(Func): -3169 arg_types = {"this": True, "expression": True, "null": False} +3168class ArrayContains(Binary, Func): +3169 pass 3170 3171 -3172class ArraySize(Func): -3173 arg_types = {"this": True, "expression": False} +3172class ArrayContained(Binary): +3173 pass 3174 3175 -3176class ArraySort(Func): -3177 arg_types = {"this": True, "expression": False} -3178 +3176class ArrayFilter(Func): +3177 arg_types = {"this": True, "expression": True} +3178 _sql_names = ["FILTER", "ARRAY_FILTER"] 3179 -3180class ArraySum(Func): -3181 pass -3182 +3180 +3181class ArrayJoin(Func): +3182 arg_types = {"this": True, "expression": True, "null": False} 3183 -3184class ArrayUnionAgg(AggFunc): -3185 pass -3186 +3184 +3185class ArraySize(Func): +3186 arg_types = {"this": True, "expression": False} 3187 -3188class Avg(AggFunc): -3189 pass -3190 +3188 +3189class ArraySort(Func): +3190 arg_types = {"this": True, "expression": False} 3191 -3192class AnyValue(AggFunc): -3193 pass -3194 +3192 +3193class ArraySum(Func): +3194 pass 3195 -3196class Case(Func): -3197 arg_types = {"this": False, "ifs": True, "default": False} -3198 +3196 +3197class ArrayUnionAgg(AggFunc): +3198 pass 3199 -3200class Cast(Func): -3201 arg_types = {"this": True, "to": True} -3202 -3203 @property -3204 def name(self) -> str: -3205 return self.this.name -3206 -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 -3218 -3219class Collate(Binary): -3220 pass -3221 -3222 -3223class TryCast(Cast): -3224 pass -3225 -3226 -3227class Ceil(Func): -3228 arg_types = {"this": True, "decimals": False} -3229 _sql_names = ["CEIL", "CEILING"] +3200 +3201class Avg(AggFunc): +3202 pass +3203 +3204 +3205class AnyValue(AggFunc): +3206 pass +3207 +3208 +3209class Case(Func): +3210 arg_types = {"this": False, "ifs": True, "default": False} +3211 +3212 +3213class Cast(Func): +3214 arg_types = {"this": True, "to": True} +3215 +3216 @property +3217 def name(self) -> str: +3218 return self.this.name +3219 +3220 @property +3221 def to(self): +3222 return self.args["to"] +3223 +3224 @property +3225 def output_name(self): +3226 return self.name +3227 +3228 def is_type(self, dtype: DataType.Type) -> bool: +3229 return self.to.is_type(dtype) 3230 3231 -3232class Coalesce(Func): -3233 arg_types = {"this": True, "expressions": False} -3234 is_var_len_args = True +3232class Collate(Binary): +3233 pass +3234 3235 -3236 -3237class Concat(Func): -3238 arg_types = {"expressions": True} -3239 is_var_len_args = True -3240 -3241 -3242class ConcatWs(Concat): -3243 _sql_names = ["CONCAT_WS"] +3236class TryCast(Cast): +3237 pass +3238 +3239 +3240class Ceil(Func): +3241 arg_types = {"this": True, "decimals": False} +3242 _sql_names = ["CEIL", "CEILING"] +3243 3244 -3245 -3246class Count(AggFunc): -3247 arg_types = {"this": False} +3245class Coalesce(Func): +3246 arg_types = {"this": True, "expressions": False} +3247 is_var_len_args = True 3248 3249 -3250class CurrentDate(Func): -3251 arg_types = {"this": False} -3252 +3250class Concat(Func): +3251 arg_types = {"expressions": True} +3252 is_var_len_args = True 3253 -3254class CurrentDatetime(Func): -3255 arg_types = {"this": False} -3256 +3254 +3255class ConcatWs(Concat): +3256 _sql_names = ["CONCAT_WS"] 3257 -3258class CurrentTime(Func): -3259 arg_types = {"this": False} -3260 +3258 +3259class Count(AggFunc): +3260 arg_types = {"this": False} 3261 -3262class CurrentTimestamp(Func): -3263 arg_types = {"this": False} -3264 +3262 +3263class CurrentDate(Func): +3264 arg_types = {"this": False} 3265 -3266class DateAdd(Func, TimeUnit): -3267 arg_types = {"this": True, "expression": True, "unit": False} -3268 +3266 +3267class CurrentDatetime(Func): +3268 arg_types = {"this": False} 3269 -3270class DateSub(Func, TimeUnit): -3271 arg_types = {"this": True, "expression": True, "unit": False} -3272 +3270 +3271class CurrentTime(Func): +3272 arg_types = {"this": False} 3273 -3274class DateDiff(Func, TimeUnit): -3275 arg_types = {"this": True, "expression": True, "unit": False} -3276 +3274 +3275class CurrentTimestamp(Func): +3276 arg_types = {"this": False} 3277 -3278class DateTrunc(Func): -3279 arg_types = {"unit": True, "this": True, "zone": False} -3280 +3278 +3279class DateAdd(Func, TimeUnit): +3280 arg_types = {"this": True, "expression": True, "unit": False} 3281 -3282class DatetimeAdd(Func, TimeUnit): -3283 arg_types = {"this": True, "expression": True, "unit": False} -3284 +3282 +3283class DateSub(Func, TimeUnit): +3284 arg_types = {"this": True, "expression": True, "unit": False} 3285 -3286class DatetimeSub(Func, TimeUnit): -3287 arg_types = {"this": True, "expression": True, "unit": False} -3288 -3289 -3290class DatetimeDiff(Func, TimeUnit): -3291 arg_types = {"this": True, "expression": True, "unit": False} -3292 -3293 -3294class DatetimeTrunc(Func, TimeUnit): -3295 arg_types = {"this": True, "unit": True, "zone": False} -3296 -3297 -3298class DayOfWeek(Func): -3299 _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"] -3300 -3301 -3302class DayOfMonth(Func): -3303 _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"] -3304 -3305 -3306class DayOfYear(Func): -3307 _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"] -3308 -3309 -3310class WeekOfYear(Func): -3311 _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"] -3312 -3313 -3314class LastDateOfMonth(Func): -3315 pass -3316 -3317 -3318class Extract(Func): -3319 arg_types = {"this": True, "expression": True} -3320 -3321 -3322class TimestampAdd(Func, TimeUnit): -3323 arg_types = {"this": True, "expression": True, "unit": False} -3324 -3325 -3326class TimestampSub(Func, TimeUnit): -3327 arg_types = {"this": True, "expression": True, "unit": False} -3328 -3329 -3330class TimestampDiff(Func, TimeUnit): -3331 arg_types = {"this": True, "expression": True, "unit": False} -3332 -3333 -3334class TimestampTrunc(Func, TimeUnit): -3335 arg_types = {"this": True, "unit": True, "zone": False} -3336 -3337 -3338class TimeAdd(Func, TimeUnit): -3339 arg_types = {"this": True, "expression": True, "unit": False} -3340 -3341 -3342class TimeSub(Func, TimeUnit): -3343 arg_types = {"this": True, "expression": True, "unit": False} -3344 -3345 -3346class TimeDiff(Func, TimeUnit): -3347 arg_types = {"this": True, "expression": True, "unit": False} -3348 -3349 -3350class TimeTrunc(Func, TimeUnit): -3351 arg_types = {"this": True, "unit": True, "zone": False} -3352 -3353 -3354class DateFromParts(Func): -3355 _sql_names = ["DATEFROMPARTS"] -3356 arg_types = {"year": True, "month": True, "day": True} -3357 +3286 +3287class DateDiff(Func, TimeUnit): +3288 _sql_names = ["DATEDIFF", "DATE_DIFF"] +3289 arg_types = {"this": True, "expression": True, "unit": False} +3290 +3291 +3292class DateTrunc(Func): +3293 arg_types = {"unit": True, "this": True, "zone": False} +3294 +3295 +3296class DatetimeAdd(Func, TimeUnit): +3297 arg_types = {"this": True, "expression": True, "unit": False} +3298 +3299 +3300class DatetimeSub(Func, TimeUnit): +3301 arg_types = {"this": True, "expression": True, "unit": False} +3302 +3303 +3304class DatetimeDiff(Func, TimeUnit): +3305 arg_types = {"this": True, "expression": True, "unit": False} +3306 +3307 +3308class DatetimeTrunc(Func, TimeUnit): +3309 arg_types = {"this": True, "unit": True, "zone": False} +3310 +3311 +3312class DayOfWeek(Func): +3313 _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"] +3314 +3315 +3316class DayOfMonth(Func): +3317 _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"] +3318 +3319 +3320class DayOfYear(Func): +3321 _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"] +3322 +3323 +3324class WeekOfYear(Func): +3325 _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"] +3326 +3327 +3328class LastDateOfMonth(Func): +3329 pass +3330 +3331 +3332class Extract(Func): +3333 arg_types = {"this": True, "expression": True} +3334 +3335 +3336class TimestampAdd(Func, TimeUnit): +3337 arg_types = {"this": True, "expression": True, "unit": False} +3338 +3339 +3340class TimestampSub(Func, TimeUnit): +3341 arg_types = {"this": True, "expression": True, "unit": False} +3342 +3343 +3344class TimestampDiff(Func, TimeUnit): +3345 arg_types = {"this": True, "expression": True, "unit": False} +3346 +3347 +3348class TimestampTrunc(Func, TimeUnit): +3349 arg_types = {"this": True, "unit": True, "zone": False} +3350 +3351 +3352class TimeAdd(Func, TimeUnit): +3353 arg_types = {"this": True, "expression": True, "unit": False} +3354 +3355 +3356class TimeSub(Func, TimeUnit): +3357 arg_types = {"this": True, "expression": True, "unit": False} 3358 -3359class DateStrToDate(Func): -3360 pass -3361 +3359 +3360class TimeDiff(Func, TimeUnit): +3361 arg_types = {"this": True, "expression": True, "unit": False} 3362 -3363class DateToDateStr(Func): -3364 pass -3365 +3363 +3364class TimeTrunc(Func, TimeUnit): +3365 arg_types = {"this": True, "unit": True, "zone": False} 3366 -3367class DateToDi(Func): -3368 pass -3369 -3370 -3371class Day(Func): -3372 pass -3373 -3374 -3375class Decode(Func): -3376 arg_types = {"this": True, "charset": True, "replace": False} -3377 -3378 -3379class DiToDate(Func): -3380 pass -3381 -3382 -3383class Encode(Func): -3384 arg_types = {"this": True, "charset": True} -3385 -3386 -3387class Exp(Func): -3388 pass -3389 -3390 -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 +3367 +3368class DateFromParts(Func): +3369 _sql_names = ["DATEFROMPARTS"] +3370 arg_types = {"year": True, "month": True, "day": True} +3371 +3372 +3373class DateStrToDate(Func): +3374 pass +3375 +3376 +3377class DateToDateStr(Func): +3378 pass +3379 +3380 +3381class DateToDi(Func): +3382 pass +3383 +3384 +3385class Day(Func): +3386 pass +3387 +3388 +3389class Decode(Func): +3390 arg_types = {"this": True, "charset": True, "replace": False} +3391 +3392 +3393class DiToDate(Func): +3394 pass +3395 +3396 +3397class Encode(Func): +3398 arg_types = {"this": True, "charset": True} +3399 +3400 +3401class Exp(Func): +3402 pass 3403 -3404class GroupConcat(Func): -3405 arg_types = {"this": True, "separator": False} -3406 +3404 +3405class Explode(Func): +3406 pass 3407 -3408class Hex(Func): -3409 pass -3410 +3408 +3409class Floor(Func): +3410 arg_types = {"this": True, "decimals": False} 3411 -3412class If(Func): -3413 arg_types = {"this": True, "true": True, "false": False} -3414 -3415 -3416class IfNull(Func): -3417 arg_types = {"this": True, "expression": False} -3418 _sql_names = ["IFNULL", "NVL"] -3419 +3412 +3413class Greatest(Func): +3414 arg_types = {"this": True, "expressions": False} +3415 is_var_len_args = True +3416 +3417 +3418class GroupConcat(Func): +3419 arg_types = {"this": True, "separator": False} 3420 -3421class Initcap(Func): -3422 pass -3423 +3421 +3422class Hex(Func): +3423 pass 3424 -3425class JSONBContains(Binary): -3426 _sql_names = ["JSONB_CONTAINS"] -3427 +3425 +3426class If(Func): +3427 arg_types = {"this": True, "true": True, "false": False} 3428 -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 -3440 -3441class JSONBExtractScalar(JSONExtract): -3442 _sql_names = ["JSONB_EXTRACT_SCALAR"] -3443 -3444 -3445class Least(Func): -3446 arg_types = {"expressions": False} -3447 is_var_len_args = True -3448 +3429 +3430class IfNull(Func): +3431 arg_types = {"this": True, "expression": False} +3432 _sql_names = ["IFNULL", "NVL"] +3433 +3434 +3435class Initcap(Func): +3436 pass +3437 +3438 +3439class JSONBContains(Binary): +3440 _sql_names = ["JSONB_CONTAINS"] +3441 +3442 +3443class JSONExtract(Binary, Func): +3444 _sql_names = ["JSON_EXTRACT"] +3445 +3446 +3447class JSONExtractScalar(JSONExtract): +3448 _sql_names = ["JSON_EXTRACT_SCALAR"] 3449 -3450class Length(Func): -3451 pass -3452 +3450 +3451class JSONBExtract(JSONExtract): +3452 _sql_names = ["JSONB_EXTRACT"] 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 } +3454 +3455class JSONBExtractScalar(JSONExtract): +3456 _sql_names = ["JSONB_EXTRACT_SCALAR"] +3457 +3458 +3459class Least(Func): +3460 arg_types = {"expressions": False} +3461 is_var_len_args = True 3462 3463 -3464class Ln(Func): +3464class Length(Func): 3465 pass 3466 3467 -3468class Log(Func): -3469 arg_types = {"this": True, "expression": False} -3470 -3471 -3472class Log2(Func): -3473 pass -3474 -3475 -3476class Log10(Func): -3477 pass -3478 -3479 -3480class LogicalOr(AggFunc): -3481 _sql_names = ["LOGICAL_OR", "BOOL_OR"] -3482 -3483 -3484class Lower(Func): -3485 _sql_names = ["LOWER", "LCASE"] -3486 -3487 -3488class Map(Func): -3489 arg_types = {"keys": False, "values": False} -3490 -3491 -3492class VarMap(Func): -3493 arg_types = {"keys": True, "values": True} -3494 is_var_len_args = True -3495 +3468class Levenshtein(Func): +3469 arg_types = { +3470 "this": True, +3471 "expression": False, +3472 "ins_cost": False, +3473 "del_cost": False, +3474 "sub_cost": False, +3475 } +3476 +3477 +3478class Ln(Func): +3479 pass +3480 +3481 +3482class Log(Func): +3483 arg_types = {"this": True, "expression": False} +3484 +3485 +3486class Log2(Func): +3487 pass +3488 +3489 +3490class Log10(Func): +3491 pass +3492 +3493 +3494class LogicalOr(AggFunc): +3495 _sql_names = ["LOGICAL_OR", "BOOL_OR"] 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 -3503 arg_types = {"this": True, "expressions": True} -3504 is_var_len_args = True +3497 +3498class Lower(Func): +3499 _sql_names = ["LOWER", "LCASE"] +3500 +3501 +3502class Map(Func): +3503 arg_types = {"keys": False, "values": False} +3504 3505 -3506 -3507class Max(AggFunc): -3508 arg_types = {"this": True, "expressions": False} -3509 is_var_len_args = True +3506class VarMap(Func): +3507 arg_types = {"keys": True, "values": True} +3508 is_var_len_args = True +3509 3510 -3511 -3512class Min(AggFunc): -3513 arg_types = {"this": True, "expressions": False} -3514 is_var_len_args = True -3515 +3511class Matches(Func): +3512 """Oracle/Snowflake decode. +3513 https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm +3514 Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else) +3515 """ 3516 -3517class Month(Func): -3518 pass +3517 arg_types = {"this": True, "expressions": True} +3518 is_var_len_args = True 3519 3520 -3521class Nvl2(Func): -3522 arg_types = {"this": True, "true": True, "false": False} -3523 +3521class Max(AggFunc): +3522 arg_types = {"this": True, "expressions": False} +3523 is_var_len_args = True 3524 -3525class Posexplode(Func): -3526 pass -3527 -3528 -3529class Pow(Binary, Func): -3530 _sql_names = ["POWER", "POW"] -3531 -3532 -3533class PercentileCont(AggFunc): -3534 pass -3535 -3536 -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} +3525 +3526class Min(AggFunc): +3527 arg_types = {"this": True, "expressions": False} +3528 is_var_len_args = True +3529 +3530 +3531class Month(Func): +3532 pass +3533 +3534 +3535class Nvl2(Func): +3536 arg_types = {"this": True, "true": True, "false": False} +3537 +3538 +3539class Posexplode(Func): +3540 pass +3541 +3542 +3543class Pow(Binary, Func): +3544 _sql_names = ["POWER", "POW"] +3545 +3546 +3547class PercentileCont(AggFunc): +3548 pass 3549 3550 -3551class QuantileIf(AggFunc): -3552 arg_types = {"parameters": True, "expressions": True} +3551class PercentileDisc(AggFunc): +3552 pass 3553 3554 -3555class ApproxQuantile(Quantile): -3556 arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False} +3555class Quantile(AggFunc): +3556 arg_types = {"this": True, "quantile": True} 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} +3559# Clickhouse-specific: +3560# https://clickhouse.com/docs/en/sql-reference/aggregate-functions/reference/quantiles/#quantiles +3561class Quantiles(AggFunc): +3562 arg_types = {"parameters": True, "expressions": True} +3563 +3564 +3565class QuantileIf(AggFunc): +3566 arg_types = {"parameters": True, "expressions": True} 3567 3568 -3569class Reduce(Func): -3570 arg_types = {"this": True, "initial": True, "merge": True, "finish": False} +3569class ApproxQuantile(Quantile): +3570 arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False} 3571 3572 -3573class RegexpExtract(Func): -3574 arg_types = { -3575 "this": True, -3576 "expression": True, -3577 "position": False, -3578 "occurrence": False, -3579 "group": False, -3580 } +3573class RangeN(Func): +3574 arg_types = {"this": True, "expressions": True, "each": False} +3575 +3576 +3577class ReadCSV(Func): +3578 _sql_names = ["READ_CSV"] +3579 is_var_len_args = True +3580 arg_types = {"this": True, "expressions": False} 3581 3582 -3583class RegexpLike(Func): -3584 arg_types = {"this": True, "expression": True, "flag": False} +3583class Reduce(Func): +3584 arg_types = {"this": True, "initial": True, "merge": True, "finish": 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 RowNumber(Func): -3604 arg_types: t.Dict[str, t.Any] = {} -3605 -3606 -3607class SafeDivide(Func): -3608 arg_types = {"this": True, "expression": True} -3609 -3610 -3611class SetAgg(AggFunc): -3612 pass -3613 -3614 -3615class SortArray(Func): -3616 arg_types = {"this": True, "asc": False} -3617 -3618 -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} +3587class RegexpExtract(Func): +3588 arg_types = { +3589 "this": True, +3590 "expression": True, +3591 "position": False, +3592 "occurrence": False, +3593 "group": False, +3594 } +3595 +3596 +3597class RegexpLike(Func): +3598 arg_types = {"this": True, "expression": True, "flag": False} +3599 +3600 +3601class RegexpILike(Func): +3602 arg_types = {"this": True, "expression": True, "flag": False} +3603 +3604 +3605class RegexpSplit(Func): +3606 arg_types = {"this": True, "expression": True} +3607 +3608 +3609class Repeat(Func): +3610 arg_types = {"this": True, "times": True} +3611 +3612 +3613class Round(Func): +3614 arg_types = {"this": True, "decimals": False} +3615 +3616 +3617class RowNumber(Func): +3618 arg_types: t.Dict[str, t.Any] = {} +3619 +3620 +3621class SafeDivide(Func): +3622 arg_types = {"this": True, "expression": True} +3623 +3624 +3625class SetAgg(AggFunc): +3626 pass 3627 3628 -3629class StrPosition(Func): -3630 arg_types = { -3631 "this": True, -3632 "substr": True, -3633 "position": False, -3634 "instance": False, -3635 } +3629class SortArray(Func): +3630 arg_types = {"this": True, "asc": False} +3631 +3632 +3633class Split(Func): +3634 arg_types = {"this": True, "expression": True, "limit": False} +3635 3636 -3637 -3638class StrToDate(Func): -3639 arg_types = {"this": True, "format": True} -3640 +3637# Start may be omitted in the case of postgres +3638# https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 +3639class Substring(Func): +3640 arg_types = {"this": True, "start": False, "length": False} 3641 -3642class StrToTime(Func): -3643 arg_types = {"this": True, "format": True} -3644 -3645 -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} +3642 +3643class StrPosition(Func): +3644 arg_types = { +3645 "this": True, +3646 "substr": True, +3647 "position": False, +3648 "instance": False, +3649 } 3650 3651 -3652class NumberToStr(Func): +3652class StrToDate(Func): 3653 arg_types = {"this": True, "format": True} 3654 3655 -3656class Struct(Func): -3657 arg_types = {"expressions": True} -3658 is_var_len_args = True +3656class StrToTime(Func): +3657 arg_types = {"this": True, "format": True} +3658 3659 -3660 -3661class StructExtract(Func): -3662 arg_types = {"this": True, "expression": True} -3663 +3660# Spark allows unix_timestamp() +3661# https://spark.apache.org/docs/3.1.3/api/python/reference/api/pyspark.sql.functions.unix_timestamp.html +3662class StrToUnix(Func): +3663 arg_types = {"this": False, "format": False} 3664 -3665class Sum(AggFunc): -3666 pass -3667 +3665 +3666class NumberToStr(Func): +3667 arg_types = {"this": True, "format": True} 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 -3692 -3693class TimeToUnix(Func): -3694 pass -3695 -3696 -3697class TimeStrToDate(Func): -3698 pass -3699 -3700 -3701class TimeStrToTime(Func): -3702 pass -3703 -3704 -3705class TimeStrToUnix(Func): -3706 pass -3707 -3708 -3709class Trim(Func): -3710 arg_types = { -3711 "this": True, -3712 "expression": False, -3713 "position": False, -3714 "collation": False, -3715 } -3716 +3669 +3670class Struct(Func): +3671 arg_types = {"expressions": True} +3672 is_var_len_args = True +3673 +3674 +3675class StructExtract(Func): +3676 arg_types = {"this": True, "expression": True} +3677 +3678 +3679class Sum(AggFunc): +3680 pass +3681 +3682 +3683class Sqrt(Func): +3684 pass +3685 +3686 +3687class Stddev(AggFunc): +3688 pass +3689 +3690 +3691class StddevPop(AggFunc): +3692 pass +3693 +3694 +3695class StddevSamp(AggFunc): +3696 pass +3697 +3698 +3699class TimeToStr(Func): +3700 arg_types = {"this": True, "format": True} +3701 +3702 +3703class TimeToTimeStr(Func): +3704 pass +3705 +3706 +3707class TimeToUnix(Func): +3708 pass +3709 +3710 +3711class TimeStrToDate(Func): +3712 pass +3713 +3714 +3715class TimeStrToTime(Func): +3716 pass 3717 -3718class TsOrDsAdd(Func, TimeUnit): -3719 arg_types = {"this": True, "expression": True, "unit": False} -3720 +3718 +3719class TimeStrToUnix(Func): +3720 pass 3721 -3722class TsOrDsToDateStr(Func): -3723 pass -3724 -3725 -3726class TsOrDsToDate(Func): -3727 arg_types = {"this": True, "format": False} -3728 -3729 -3730class TsOrDiToDi(Func): -3731 pass -3732 -3733 -3734class Unhex(Func): -3735 pass -3736 -3737 -3738class UnixToStr(Func): -3739 arg_types = {"this": True, "format": False} -3740 -3741 -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} +3722 +3723class Trim(Func): +3724 arg_types = { +3725 "this": True, +3726 "expression": False, +3727 "position": False, +3728 "collation": False, +3729 } +3730 +3731 +3732class TsOrDsAdd(Func, TimeUnit): +3733 arg_types = {"this": True, "expression": True, "unit": False} +3734 +3735 +3736class TsOrDsToDateStr(Func): +3737 pass +3738 +3739 +3740class TsOrDsToDate(Func): +3741 arg_types = {"this": True, "format": False} +3742 +3743 +3744class TsOrDiToDi(Func): +3745 pass 3746 -3747 SECONDS = Literal.string("seconds") -3748 MILLIS = Literal.string("millis") -3749 MICROS = Literal.string("micros") +3747 +3748class Unhex(Func): +3749 pass 3750 3751 -3752class UnixToTimeStr(Func): -3753 pass +3752class UnixToStr(Func): +3753 arg_types = {"this": True, "format": False} 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 -3780class Use(Expression): -3781 arg_types = {"this": True, "kind": False} -3782 -3783 -3784class Merge(Expression): -3785 arg_types = {"this": True, "using": True, "on": True, "expressions": True} -3786 -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 +3756# https://prestodb.io/docs/current/functions/datetime.html +3757# presto has weird zone/hours/minutes +3758class UnixToTime(Func): +3759 arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False} +3760 +3761 SECONDS = Literal.string("seconds") +3762 MILLIS = Literal.string("millis") +3763 MICROS = Literal.string("micros") +3764 +3765 +3766class UnixToTimeStr(Func): +3767 pass +3768 +3769 +3770class Upper(Func): +3771 _sql_names = ["UPPER", "UCASE"] +3772 +3773 +3774class Variance(AggFunc): +3775 _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"] +3776 +3777 +3778class VariancePop(AggFunc): +3779 _sql_names = ["VARIANCE_POP", "VAR_POP"] +3780 +3781 +3782class Week(Func): +3783 arg_types = {"this": True, "mode": False} +3784 +3785 +3786class XMLTable(Func): +3787 arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False} +3788 +3789 +3790class Year(Func): +3791 pass +3792 +3793 +3794class Use(Expression): +3795 arg_types = {"this": True, "kind": False} +3796 +3797 +3798class Merge(Expression): +3799 arg_types = {"this": True, "using": True, "on": True, "expressions": True} +3800 +3801 +3802class When(Func): +3803 arg_types = {"matched": True, "source": False, "condition": False, "then": True} +3804 3805 -3806 return args -3807 +3806def _norm_args(expression): +3807 args = {} 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 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 +3809 for k, arg in expression.args.items(): +3810 if isinstance(arg, list): +3811 arg = [_norm_arg(a) for a in arg] +3812 if not arg: +3813 arg = None +3814 else: +3815 arg = _norm_arg(arg) +3816 +3817 if arg is not None and arg is not False: +3818 args[k] = arg +3819 +3820 return args +3821 +3822 +3823def _norm_arg(arg): +3824 return arg.lower() if isinstance(arg, str) else arg +3825 +3826 +3827ALL_FUNCTIONS = subclasses(__name__, Func, (AggFunc, Anonymous, Func)) +3828 +3829 +3830# Helpers +3831def maybe_parse( +3832 sql_or_expression: str | Expression, +3833 *, +3834 into: t.Optional[IntoType] = None, +3835 dialect: DialectType = None, +3836 prefix: t.Optional[str] = None, +3837 copy: bool = False, +3838 **opts, +3839) -> Expression: +3840 """Gracefully handle a possible string or expression. +3841 +3842 Example: +3843 >>> maybe_parse("1") +3844 (LITERAL this: 1, is_string: False) +3845 >>> maybe_parse(to_identifier("x")) +3846 (IDENTIFIER this: x, quoted: False) +3847 +3848 Args: +3849 sql_or_expression: the SQL code string or an expression +3850 into: the SQLGlot Expression to parse into +3851 dialect: the dialect used to parse the input expressions (in the case that an +3852 input expression is a SQL string). +3853 prefix: a string to prefix the sql with before it gets parsed +3854 (automatically includes a space) +3855 copy: whether or not to copy the expression. +3856 **opts: other options to use to parse the input expressions (again, in the case +3857 that an input expression is a SQL string). +3858 +3859 Returns: +3860 Expression: the parsed or given expression. +3861 """ +3862 if isinstance(sql_or_expression, Expression): +3863 if copy: +3864 return sql_or_expression.copy() +3865 return sql_or_expression +3866 +3867 import sqlglot 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 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 -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) +3869 sql = str(sql_or_expression) +3870 if prefix: +3871 sql = f"{prefix} {sql}" +3872 return sqlglot.parse_one(sql, read=dialect, into=into, **opts) +3873 +3874 +3875def _maybe_copy(instance, copy=True): +3876 return instance.copy() if copy else instance +3877 +3878 +3879def _is_wrong_expression(expression, into): +3880 return isinstance(expression, Expression) and not isinstance(expression, into) +3881 +3882 +3883def _apply_builder( +3884 expression, +3885 instance, +3886 arg, +3887 copy=True, +3888 prefix=None, +3889 into=None, +3890 dialect=None, +3891 **opts, +3892): +3893 if _is_wrong_expression(expression, into): +3894 expression = into(this=expression) +3895 instance = _maybe_copy(instance, copy) +3896 expression = maybe_parse( +3897 sql_or_expression=expression, +3898 prefix=prefix, +3899 into=into, +3900 dialect=dialect, +3901 **opts, +3902 ) +3903 instance.set(arg, expression) +3904 return instance +3905 +3906 +3907def _apply_child_list_builder( +3908 *expressions, +3909 instance, +3910 arg, +3911 append=True, +3912 copy=True, +3913 prefix=None, +3914 into=None, +3915 dialect=None, +3916 properties=None, +3917 **opts, +3918): +3919 instance = _maybe_copy(instance, copy) +3920 parsed = [] +3921 for expression in expressions: +3922 if _is_wrong_expression(expression, into): +3923 expression = into(expressions=[expression]) +3924 expression = maybe_parse( +3925 expression, +3926 into=into, +3927 dialect=dialect, +3928 prefix=prefix, +3929 **opts, +3930 ) +3931 parsed.extend(expression.expressions) +3932 +3933 existing = instance.args.get(arg) +3934 if append and existing: +3935 parsed = existing.expressions + parsed +3936 +3937 child = into(expressions=parsed) +3938 for k, v in (properties or {}).items(): +3939 child.set(k, v) +3940 instance.set(arg, child) +3941 return instance 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, expressions) -3959 return inst -3960 -3961 -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 +3943 +3944def _apply_list_builder( +3945 *expressions, +3946 instance, +3947 arg, +3948 append=True, +3949 copy=True, +3950 prefix=None, +3951 into=None, +3952 dialect=None, +3953 **opts, +3954): +3955 inst = _maybe_copy(instance, copy) +3956 +3957 expressions = [ +3958 maybe_parse( +3959 sql_or_expression=expression, +3960 into=into, +3961 prefix=prefix, +3962 dialect=dialect, +3963 **opts, +3964 ) +3965 for expression in expressions +3966 ] +3967 +3968 existing_expressions = inst.args.get(arg) +3969 if append and existing_expressions: +3970 expressions = existing_expressions + expressions +3971 +3972 inst.set(arg, expressions) +3973 return inst +3974 3975 -3976 inst = _maybe_copy(instance, copy) -3977 -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 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 +3976def _apply_conjunction_builder( +3977 *expressions, +3978 instance, +3979 arg, +3980 into=None, +3981 append=True, +3982 copy=True, +3983 dialect=None, +3984 **opts, +3985): +3986 expressions = [exp for exp in expressions if exp is not None and exp != ""] +3987 if not expressions: +3988 return instance +3989 +3990 inst = _maybe_copy(instance, copy) +3991 +3992 existing = inst.args.get(arg) +3993 if append and existing is not None: +3994 expressions = [existing.this if into else existing] + list(expressions) +3995 +3996 node = and_(*expressions, dialect=dialect, **opts) 3997 -3998def _wrap_operator(expression): -3999 if isinstance(expression, (And, Or, Not)): -4000 expression = Paren(this=expression) -4001 return expression -4002 -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' +3998 inst.set(arg, into(this=node) if into else node) +3999 return inst +4000 +4001 +4002def _combine(expressions, operator, dialect=None, **opts): +4003 expressions = [condition(expression, dialect=dialect, **opts) for expression in expressions] +4004 this = expressions[0] +4005 if expressions[1:]: +4006 this = _wrap_operator(this) +4007 for expression in expressions[1:]: +4008 this = operator(this=this, expression=_wrap_operator(expression)) +4009 return this +4010 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) +4012def _wrap_operator(expression): +4013 if isinstance(expression, (And, Or, Not)): +4014 expression = Paren(this=expression) +4015 return expression +4016 +4017 +4018def union(left, right, distinct=True, dialect=None, **opts): +4019 """ +4020 Initializes a syntax tree from one UNION expression. +4021 +4022 Example: +4023 >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql() +4024 'SELECT * FROM foo UNION SELECT * FROM bla' 4025 -4026 return Union(this=left, expression=right, distinct=distinct) -4027 -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) +4026 Args: +4027 left (str | Expression): the SQL code string corresponding to the left-hand side. +4028 If an `Expression` instance is passed, it will be used as-is. +4029 right (str | Expression): the SQL code string corresponding to the right-hand side. +4030 If an `Expression` instance is passed, it will be used as-is. +4031 distinct (bool): set the DISTINCT flag if and only if this is true. +4032 dialect (str): the dialect used to parse the input expression. +4033 opts (kwargs): other options to use to parse the input expressions. +4034 Returns: +4035 Union: the syntax tree for the UNION expression. +4036 """ +4037 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4038 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4039 +4040 return Union(this=left, expression=right, distinct=distinct) +4041 +4042 +4043def intersect(left, right, distinct=True, dialect=None, **opts): +4044 """ +4045 Initializes a syntax tree from one INTERSECT expression. +4046 +4047 Example: +4048 >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql() +4049 'SELECT * FROM foo INTERSECT SELECT * FROM bla' 4050 -4051 return Intersect(this=left, expression=right, distinct=distinct) -4052 -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) +4051 Args: +4052 left (str | Expression): the SQL code string corresponding to the left-hand side. +4053 If an `Expression` instance is passed, it will be used as-is. +4054 right (str | Expression): the SQL code string corresponding to the right-hand side. +4055 If an `Expression` instance is passed, it will be used as-is. +4056 distinct (bool): set the DISTINCT flag if and only if this is true. +4057 dialect (str): the dialect used to parse the input expression. +4058 opts (kwargs): other options to use to parse the input expressions. +4059 Returns: +4060 Intersect: the syntax tree for the INTERSECT expression. +4061 """ +4062 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4063 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4064 +4065 return Intersect(this=left, expression=right, distinct=distinct) +4066 +4067 +4068def except_(left, right, distinct=True, dialect=None, **opts): +4069 """ +4070 Initializes a syntax tree from one EXCEPT expression. +4071 +4072 Example: +4073 >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql() +4074 'SELECT * FROM foo EXCEPT SELECT * FROM bla' 4075 -4076 return Except(this=left, expression=right, distinct=distinct) -4077 -4078 -4079def select(*expressions: str | Expression, dialect: DialectType = None, **opts) -> Select: -4080 """ -4081 Initializes a syntax tree from one or multiple SELECT expressions. -4082 -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 +4076 Args: +4077 left (str | Expression): the SQL code string corresponding to the left-hand side. +4078 If an `Expression` instance is passed, it will be used as-is. +4079 right (str | Expression): the SQL code string corresponding to the right-hand side. +4080 If an `Expression` instance is passed, it will be used as-is. +4081 distinct (bool): set the DISTINCT flag if and only if this is true. +4082 dialect (str): the dialect used to parse the input expression. +4083 opts (kwargs): other options to use to parse the input expressions. +4084 Returns: +4085 Except: the syntax tree for the EXCEPT statement. +4086 """ +4087 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4088 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4089 +4090 return Except(this=left, expression=right, distinct=distinct) +4091 +4092 +4093def select(*expressions: str | Expression, dialect: DialectType = None, **opts) -> Select: +4094 """ +4095 Initializes a syntax tree from one or multiple SELECT expressions. +4096 +4097 Example: +4098 >>> select("col1", "col2").from_("tbl").sql() +4099 'SELECT col1, col2 FROM tbl' 4100 -4101def from_(*expressions, dialect=None, **opts) -> Select: -4102 """ -4103 Initializes a syntax tree from a FROM expression. -4104 -4105 Example: -4106 >>> from_("tbl").select("col1", "col2").sql() -4107 'SELECT col1, col2 FROM tbl' +4101 Args: +4102 *expressions: the SQL code string to parse as the expressions of a +4103 SELECT statement. If an Expression instance is passed, this is used as-is. +4104 dialect: the dialect used to parse the input expressions (in the case that an +4105 input expression is a SQL string). +4106 **opts: other options to use to parse the input expressions (again, in the case +4107 that an input expression is a SQL string). 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 +4109 Returns: +4110 Select: the syntax tree for the SELECT statement. +4111 """ +4112 return Select().select(*expressions, dialect=dialect, **opts) +4113 +4114 +4115def from_(*expressions, dialect=None, **opts) -> Select: +4116 """ +4117 Initializes a syntax tree from a FROM expression. +4118 +4119 Example: +4120 >>> from_("tbl").select("col1", "col2").sql() +4121 'SELECT col1, col2 FROM tbl' 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" +4123 Args: +4124 *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a +4125 SELECT statement. If an Expression instance is passed, this is used as-is. +4126 dialect (str): the dialect used to parse the input expression (in the case that the +4127 input expression is a SQL string). +4128 **opts: other options to use to parse the input expressions (again, in the case +4129 that the input expression is a SQL string). 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 -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. +4131 Returns: +4132 Select: the syntax tree for the SELECT statement. +4133 """ +4134 return Select().from_(*expressions, dialect=dialect, **opts) +4135 +4136 +4137def update(table, properties, where=None, from_=None, dialect=None, **opts) -> Update: +4138 """ +4139 Creates an update statement. +4140 +4141 Example: +4142 >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql() +4143 "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1" +4144 +4145 Args: +4146 *properties (Dict[str, Any]): dictionary of properties to set which are +4147 auto converted to sql objects eg None -> NULL +4148 where (str): sql conditional parsed into a WHERE statement +4149 from_ (str): sql statement parsed into a FROM 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 Update: the syntax tree for the UPDATE statement. +4155 """ +4156 update = Update(this=maybe_parse(table, into=Table, dialect=dialect)) +4157 update.set( +4158 "expressions", +4159 [ +4160 EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v)) +4161 for k, v in properties.items() +4162 ], +4163 ) +4164 if from_: +4165 update.set( +4166 "from", +4167 maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts), +4168 ) +4169 if isinstance(where, Condition): +4170 where = Where(this=where) +4171 if where: +4172 update.set( +4173 "where", +4174 maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts), +4175 ) +4176 return update 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' +4178 +4179def delete(table, where=None, dialect=None, **opts) -> Delete: +4180 """ +4181 Builds a delete statement. +4182 +4183 Example: +4184 >>> delete("my_table", where="id > 1").sql() +4185 'DELETE FROM my_table WHERE id > 1' +4186 +4187 Args: +4188 where (str|Condition): sql conditional parsed into a WHERE statement +4189 dialect (str): the dialect used to parse the input expressions. +4190 **opts: other options to use to parse the input expressions. +4191 +4192 Returns: +4193 Delete: the syntax tree for the DELETE statement. +4194 """ +4195 return Delete( +4196 this=maybe_parse(table, into=Table, dialect=dialect, **opts), +4197 where=Where(this=where) +4198 if isinstance(where, Condition) +4199 else maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts), +4200 ) +4201 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). +4203def condition(expression, dialect=None, **opts) -> Condition: +4204 """ +4205 Initialize a logical condition expression. +4206 +4207 Example: +4208 >>> condition("x=1").sql() +4209 'x = 1' 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 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. +4211 This is helpful for composing larger logical syntax trees: +4212 >>> where = condition("x=1") +4213 >>> where = where.and_("y=1") +4214 >>> Select().from_("tbl").select("*").where(where).sql() +4215 'SELECT * FROM tbl WHERE x = 1 AND y = 1' +4216 +4217 Args: +4218 *expression (str | Expression): the SQL code string to parse. +4219 If an Expression instance is passed, this is used as-is. +4220 dialect (str): the dialect used to parse the input expression (in the case that the +4221 input expression is a SQL string). +4222 **opts: other options to use to parse the input expressions (again, in the case +4223 that the input expression is a SQL string). +4224 +4225 Returns: +4226 Condition: the expression +4227 """ +4228 return maybe_parse( # type: ignore +4229 expression, +4230 into=Condition, +4231 dialect=dialect, +4232 **opts, +4233 ) +4234 4235 -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)' +4236def and_(*expressions, dialect=None, **opts) -> And: +4237 """ +4238 Combine multiple conditions with an AND logical operator. +4239 +4240 Example: +4241 >>> and_("x=1", and_("y=1", "z=1")).sql() +4242 'x = 1 AND (y = 1 AND z = 1)' +4243 +4244 Args: +4245 *expressions (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. 4249 -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. +4250 Returns: +4251 And: the new condition +4252 """ +4253 return _combine(expressions, And, dialect, **opts) +4254 4255 -4256 Returns: -4257 Or: the new condition -4258 """ -4259 return _combine(expressions, Or, dialect, **opts) -4260 -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'" +4256def or_(*expressions, dialect=None, **opts) -> Or: +4257 """ +4258 Combine multiple conditions with an OR logical operator. +4259 +4260 Example: +4261 >>> or_("x=1", or_("y=1", "z=1")).sql() +4262 'x = 1 OR (y = 1 OR z = 1)' +4263 +4264 Args: +4265 *expressions (str | Expression): the SQL code strings to parse. +4266 If an Expression instance is passed, this is used as-is. +4267 dialect (str): the dialect used to parse the input expression. +4268 **opts: other options to use to parse the input expressions. 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. +4270 Returns: +4271 Or: the new condition +4272 """ +4273 return _combine(expressions, Or, dialect, **opts) +4274 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) +4276def not_(expression, dialect=None, **opts) -> Not: +4277 """ +4278 Wrap a condition with a NOT operator. +4279 +4280 Example: +4281 >>> not_("this_suit='black'").sql() +4282 "NOT this_suit = 'black'" +4283 +4284 Args: +4285 expression (str | Expression): the SQL code strings to parse. +4286 If an Expression instance is passed, this is used as-is. +4287 dialect (str): the dialect used to parse the input expression. +4288 **opts: other options to use to parse the input expressions. 4289 -4290 -4291SAFE_IDENTIFIER_RE = re.compile(r"^[_a-zA-Z][\w]*$") -4292 -4293 -4294@t.overload -4295def to_identifier(name: None, quoted: t.Optional[bool] = None) -> None: -4296 ... -4297 -4298 -4299@t.overload -4300def to_identifier(name: str | Identifier, quoted: t.Optional[bool] = None) -> Identifier: -4301 ... -4302 +4290 Returns: +4291 Not: the new condition +4292 """ +4293 this = condition( +4294 expression, +4295 dialect=dialect, +4296 **opts, +4297 ) +4298 return Not(this=_wrap_operator(this)) +4299 +4300 +4301def paren(expression) -> Paren: +4302 return Paren(this=expression) 4303 -4304def to_identifier(name, quoted=None): -4305 """Builds an identifier. +4304 +4305SAFE_IDENTIFIER_RE = re.compile(r"^[_a-zA-Z][\w]*$") 4306 -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 if name is None: -4316 return None +4307 +4308@t.overload +4309def to_identifier(name: None, quoted: t.Optional[bool] = None) -> None: +4310 ... +4311 +4312 +4313@t.overload +4314def to_identifier(name: str | Identifier, quoted: t.Optional[bool] = None) -> Identifier: +4315 ... +4316 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 +4318def to_identifier(name, quoted=None): +4319 """Builds an identifier. +4320 +4321 Args: +4322 name: The name to turn into an identifier. +4323 quoted: Whether or not force quote the identifier. +4324 +4325 Returns: +4326 The identifier ast node. +4327 """ 4328 -4329 -4330INTERVAL_STRING_RE = re.compile(r"\s*([0-9]+)\s*([a-zA-Z]+)\s*") +4329 if name is None: +4330 return None 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 interval_parts = INTERVAL_STRING_RE.match(interval) # type: ignore +4332 if isinstance(name, Identifier): +4333 identifier = name +4334 elif isinstance(name, str): +4335 identifier = Identifier( +4336 this=name, +4337 quoted=not re.match(SAFE_IDENTIFIER_RE, name) if quoted is None else quoted, +4338 ) +4339 else: +4340 raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}") +4341 return identifier 4342 -4343 if not interval_parts: -4344 raise ValueError("Invalid interval string.") +4343 +4344INTERVAL_STRING_RE = re.compile(r"\s*([0-9]+)\s*([a-zA-Z]+)\s*") 4345 -4346 return Interval( -4347 this=Literal.string(interval_parts.group(1)), -4348 unit=Var(this=interval_parts.group(2)), -4349 ) -4350 -4351 -4352@t.overload -4353def to_table(sql_path: str | Table, **kwargs) -> Table: -4354 ... -4355 +4346 +4347def to_interval(interval: str | Literal) -> Interval: +4348 """Builds an interval expression from a string like '1 day' or '5 months'.""" +4349 if isinstance(interval, Literal): +4350 if not interval.is_string: +4351 raise ValueError("Invalid interval string.") +4352 +4353 interval = interval.this +4354 +4355 interval_parts = INTERVAL_STRING_RE.match(interval) # type: ignore 4356 -4357@t.overload -4358def to_table(sql_path: None, **kwargs) -> None: -4359 ... -4360 -4361 -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. +4357 if not interval_parts: +4358 raise ValueError("Invalid interval string.") +4359 +4360 return Interval( +4361 this=Literal.string(interval_parts.group(1)), +4362 unit=Var(this=interval_parts.group(2)), +4363 ) +4364 +4365 +4366@t.overload +4367def to_table(sql_path: str | Table, **kwargs) -> Table: +4368 ... 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) +4370 +4371@t.overload +4372def to_table(sql_path: None, **kwargs) -> None: +4373 ... +4374 +4375 +4376def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]: +4377 """ +4378 Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional. +4379 If a table is passed in then that table is returned. 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) +4381 Args: +4382 sql_path: a `[catalog].[schema].[table]` string. +4383 +4384 Returns: +4385 A table expression. +4386 """ +4387 if sql_path is None or isinstance(sql_path, Table): +4388 return sql_path +4389 if not isinstance(sql_path, str): +4390 raise ValueError(f"Invalid type provided for a table: {type(sql_path)}") +4391 +4392 catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3)) +4393 return Table(this=table_name, db=db, catalog=catalog, **kwargs) +4394 +4395 +4396def to_column(sql_path: str | Column, **kwargs) -> Column: +4397 """ +4398 Create a column from a `[table].[column]` sql path. Schema is optional. 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' +4400 If a column is passed in then that column is returned. +4401 +4402 Args: +4403 sql_path: `[table].[column]` string +4404 Returns: +4405 Table: A column expression +4406 """ +4407 if sql_path is None or isinstance(sql_path, Column): +4408 return sql_path +4409 if not isinstance(sql_path, str): +4410 raise ValueError(f"Invalid type provided for column: {type(sql_path)}") +4411 table_name, column_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 2)) +4412 return Column(this=column_name, table=table_name, **kwargs) +4413 4414 -4415 >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql() -4416 '(SELECT 1, 2) AS bar(a, b)' -4417 -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)) +4415def alias_( +4416 expression: str | Expression, +4417 alias: str | Identifier, +4418 table: bool | t.Sequence[str | Identifier] = False, +4419 quoted: t.Optional[bool] = None, +4420 dialect: DialectType = None, +4421 **opts, +4422): +4423 """Create an Alias expression. +4424 +4425 Example: +4426 >>> alias_('foo', 'bar').sql() +4427 'foo AS bar' +4428 +4429 >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql() +4430 '(SELECT 1, 2) AS bar(a, b)' +4431 +4432 Args: +4433 expression: the SQL code strings to parse. +4434 If an Expression instance is passed, this is used as-is. +4435 alias: the alias name to use. If the name has +4436 special characters it is quoted. +4437 table: Whether or not to create a table alias, can also be a list of columns. +4438 quoted: whether or not to quote the alias +4439 dialect: the dialect used to parse the input expression. +4440 **opts: other options to use to parse the input expressions. 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 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) +4442 Returns: +4443 Alias: the aliased expression +4444 """ +4445 exp = maybe_parse(expression, dialect=dialect, **opts) +4446 alias = to_identifier(alias, quoted=quoted) +4447 +4448 if table: +4449 table_alias = TableAlias(this=alias) +4450 exp.set("alias", table_alias) +4451 +4452 if not isinstance(table, bool): +4453 for column in table: +4454 table_alias.append("columns", to_identifier(column, quoted=quoted)) 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) +4456 return exp +4457 +4458 # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in +4459 # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node +4460 # for the complete Window expression. +4461 # +4462 # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls +4463 +4464 if "alias" in exp.arg_types and not isinstance(exp, Window): +4465 exp = exp.copy() +4466 exp.set("alias", alias) +4467 return exp +4468 return Alias(this=exp, alias=alias) +4469 +4470 +4471def subquery(expression, alias=None, dialect=None, **opts): +4472 """ +4473 Build a subquery expression. +4474 +4475 Example: +4476 >>> subquery('select x from tbl', 'bar').select('x').sql() +4477 'SELECT x FROM (SELECT x FROM tbl) AS bar' 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 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 ) +4479 Args: +4480 expression (str | Expression): the SQL code strings to parse. +4481 If an Expression instance is passed, this is used as-is. +4482 alias (str | Expression): the alias name to use. +4483 dialect (str): the dialect used to parse the input expression. +4484 **opts: other options to use to parse the input expressions. +4485 +4486 Returns: +4487 Select: a new select with the subquery expression included +4488 """ +4489 +4490 expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias) +4491 return Select().from_(expression, dialect=dialect, **opts) +4492 +4493 +4494def column( +4495 col: str | Identifier, +4496 table: t.Optional[str | Identifier] = None, +4497 schema: t.Optional[str | Identifier] = None, +4498 quoted: t.Optional[bool] = None, +4499) -> Column: +4500 """ +4501 Build a Column. 4502 -4503 -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 -4515 Returns: -4516 A cast node. -4517 """ -4518 expression = maybe_parse(expression, **opts) -4519 return Cast(this=expression, to=DataType.build(to, **opts)) +4503 Args: +4504 col: column name +4505 table: table name +4506 schema: schema name +4507 quoted: whether or not to force quote each part +4508 Returns: +4509 Column: column instance +4510 """ +4511 return Column( +4512 this=to_identifier(col, quoted=quoted), +4513 table=to_identifier(table, quoted=quoted), +4514 schema=to_identifier(schema, quoted=quoted), +4515 ) +4516 +4517 +4518def cast(expression: str | Expression, to: str | DataType | DataType.Type, **opts) -> Cast: +4519 """Cast an expression to a data type. 4520 -4521 -4522def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table: -4523 """Build a Table. +4521 Example: +4522 >>> cast('x + 1', 'int').sql() +4523 'CAST(x + 1 AS INT)' 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 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. +4526 expression: The expression to cast. +4527 to: The datatype to cast to. +4528 +4529 Returns: +4530 A cast node. +4531 """ +4532 expression = maybe_parse(expression, **opts) +4533 return Cast(this=expression, to=DataType.build(to, **opts)) +4534 +4535 +4536def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table: +4537 """Build a Table. +4538 +4539 Args: +4540 table (str | Expression): column name +4541 db (str | Expression): db name +4542 catalog (str | Expression): catalog name +4543 +4544 Returns: +4545 Table: table instance +4546 """ +4547 return Table( +4548 this=to_identifier(table, quoted=quoted), +4549 db=to_identifier(db, quoted=quoted), +4550 catalog=to_identifier(catalog, quoted=quoted), +4551 alias=TableAlias(this=to_identifier(alias)) if alias else None, +4552 ) +4553 +4554 +4555def values( +4556 values: t.Iterable[t.Tuple[t.Any, ...]], +4557 alias: t.Optional[str] = None, +4558 columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None, +4559) -> Values: +4560 """Build VALUES statement. +4561 +4562 Example: +4563 >>> values([(1, '2')]).sql() +4564 "VALUES (1, '2')" +4565 +4566 Args: +4567 values: values statements that will be converted to SQL +4568 alias: optional alias +4569 columns: Optional list of ordered column names or ordered dictionary of column names to types. +4570 If either are provided then an alias is also required. +4571 If a dictionary is provided then the first column of the values will be casted to the expected type +4572 in order to help with type inference. +4573 +4574 Returns: +4575 Values: the Values expression object +4576 """ +4577 if columns and not alias: +4578 raise ValueError("Alias is required when providing columns") +4579 table_alias = ( +4580 TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns]) +4581 if columns +4582 else TableAlias(this=to_identifier(alias) if alias else None) +4583 ) +4584 expressions = [convert(tup) for tup in values] +4585 if columns and isinstance(columns, dict): +4586 types = list(columns.values()) +4587 expressions[0].set( +4588 "expressions", +4589 [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)], +4590 ) +4591 return Values( +4592 expressions=expressions, +4593 alias=table_alias, +4594 ) 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 +4596 +4597def var(name: t.Optional[str | Expression]) -> Var: +4598 """Build a SQL variable. +4599 +4600 Example: +4601 >>> repr(var('x')) +4602 '(VAR this: x)' +4603 +4604 >>> repr(var(column('x', table='y'))) +4605 '(VAR this: x)' 4606 -4607def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable: -4608 """Build ALTER TABLE... RENAME... expression +4607 Args: +4608 name: The name of the var or an expression who's name will become the var. 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 -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) +4610 Returns: +4611 The new variable node. +4612 """ +4613 if not name: +4614 raise ValueError(f"Cannot convert empty name into var.") +4615 +4616 if isinstance(name, Expression): +4617 name = name.name +4618 return Var(this=name) +4619 +4620 +4621def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable: +4622 """Build ALTER TABLE... RENAME... expression +4623 +4624 Args: +4625 old_name: The old name of the table +4626 new_name: The new name of the table +4627 +4628 Returns: +4629 Alter table expression +4630 """ +4631 old_table = to_table(old_name) +4632 new_table = to_table(new_name) +4633 return AlterTable( +4634 this=old_table, +4635 actions=[ +4636 RenameTable(this=new_table), +4637 ], +4638 ) +4639 +4640 +4641def convert(value) -> Expression: +4642 """Convert a python value into an expression object. +4643 +4644 Raises an error if a conversion is not possible. +4645 +4646 Args: +4647 value (Any): a python object +4648 +4649 Returns: +4650 Expression: the equivalent expression object +4651 """ +4652 if isinstance(value, Expression): +4653 return value +4654 if value is None: +4655 return NULL +4656 if isinstance(value, bool): +4657 return Boolean(this=value) +4658 if isinstance(value, str): +4659 return Literal.string(value) +4660 if isinstance(value, float) and math.isnan(value): +4661 return NULL +4662 if isinstance(value, numbers.Number): +4663 return Literal.number(value) +4664 if isinstance(value, tuple): +4665 return Tuple(expressions=[convert(v) for v in value]) +4666 if isinstance(value, list): +4667 return Array(expressions=[convert(v) for v in value]) +4668 if isinstance(value, dict): +4669 return Map( +4670 keys=[convert(k) for k in value], +4671 values=[convert(v) for v in value.values()], +4672 ) +4673 if isinstance(value, datetime.datetime): +4674 datetime_literal = Literal.string( +4675 (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat() +4676 ) +4677 return TimeStrToTime(this=datetime_literal) +4678 if isinstance(value, datetime.date): +4679 date_literal = Literal.string(value.strftime("%Y-%m-%d")) +4680 return DateStrToDate(this=date_literal) +4681 raise ValueError(f"Cannot convert {value}") +4682 +4683 +4684def replace_children(expression, fun): +4685 """ +4686 Replace children of an expression with the result of a lambda fun(child) -> exp. +4687 """ +4688 for k, v in expression.args.items(): +4689 is_list_arg = isinstance(v, list) 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 Args: -4702 expression (sqlglot.Expression): expression to find table names -4703 -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 +4691 child_nodes = v if is_list_arg else [v] +4692 new_child_nodes = [] +4693 +4694 for cn in child_nodes: +4695 if isinstance(cn, Expression): +4696 for child_node in ensure_collection(fun(cn)): +4697 new_child_nodes.append(child_node) +4698 child_node.parent = expression +4699 child_node.arg_key = k +4700 else: +4701 new_child_nodes.append(cn) +4702 +4703 expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0) +4704 +4705 +4706def column_table_names(expression): +4707 """ +4708 Return all table names referenced through columns in an expression. 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) +4710 Example: +4711 >>> import sqlglot +4712 >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e")) +4713 ['c', 'a'] +4714 +4715 Args: +4716 expression (sqlglot.Expression): expression to find table names +4717 +4718 Returns: +4719 list: A list of unique names +4720 """ +4721 return list(dict.fromkeys(column.table for column in expression.find_all(Column))) +4722 +4723 +4724def table_name(table) -> str: +4725 """Get the full name of a table as a string. 4726 -4727 if not table: -4728 raise ValueError(f"Cannot parse {table}") +4727 Args: +4728 table (exp.Table | str): table expression node or string. 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 +4730 Examples: +4731 >>> from sqlglot import exp, parse_one +4732 >>> table_name(parse_one("select * from a.b.c").find(exp.Table)) +4733 'a.b.c' +4734 +4735 Returns: +4736 The table name. +4737 """ +4738 +4739 table = maybe_parse(table, into=Table) 4740 -4741def replace_tables(expression, mapping): -4742 """Replace all tables in expression according to the mapping. +4741 if not table: +4742 raise ValueError(f"Cannot parse {table}") 4743 -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 +4744 return ".".join( +4745 part +4746 for part in ( +4747 table.text("catalog"), +4748 table.text("db"), +4749 table.name, +4750 ) +4751 if part +4752 ) +4753 +4754 +4755def replace_tables(expression, mapping): +4756 """Replace all tables in expression according to the mapping. +4757 +4758 Args: +4759 expression (sqlglot.Expression): expression node to be transformed and replaced. +4760 mapping (Dict[str, str]): mapping of table names. +4761 +4762 Examples: +4763 >>> from sqlglot import exp, parse_one +4764 >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql() +4765 'SELECT * FROM c' 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 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 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 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. +4767 Returns: +4768 The mapped expression. +4769 """ +4770 +4771 def _replace_tables(node): +4772 if isinstance(node, Table): +4773 new_name = mapping.get(table_name(node)) +4774 if new_name: +4775 return to_table( +4776 new_name, +4777 **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")}, +4778 ) +4779 return node +4780 +4781 return expression.transform(_replace_tables) +4782 +4783 +4784def replace_placeholders(expression, *args, **kwargs): +4785 """Replace placeholders in an expression. +4786 +4787 Args: +4788 expression (sqlglot.Expression): expression node to be transformed and replaced. +4789 args: positional names that will substitute unnamed placeholders in the given order. +4790 kwargs: keyword arguments that will substitute named placeholders. +4791 +4792 Examples: +4793 >>> from sqlglot import exp, parse_one +4794 >>> replace_placeholders( +4795 ... parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo" +4796 ... ).sql() +4797 'SELECT * FROM foo WHERE a = b' +4798 +4799 Returns: +4800 The mapped expression. +4801 """ +4802 +4803 def _replace_placeholders(node, args, **kwargs): +4804 if isinstance(node, Placeholder): +4805 if node.name: +4806 new_name = kwargs.get(node.name) +4807 if new_name: +4808 return to_identifier(new_name) +4809 else: +4810 try: +4811 return to_identifier(next(args)) +4812 except StopIteration: +4813 pass +4814 return node +4815 +4816 return expression.transform(_replace_placeholders, iter(args), **kwargs) 4817 -4818 Returns: -4819 The transformed expression. -4820 """ +4818 +4819def expand(expression: Expression, sources: t.Dict[str, Subqueryable], copy=True) -> Expression: +4820 """Transforms an expression by expanding all referenced sources into subqueries. 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 +4822 Examples: +4823 >>> from sqlglot import parse_one +4824 >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql() +4825 'SELECT * FROM (SELECT * FROM y) AS z /* source: x */' +4826 +4827 Args: +4828 expression: The expression to expand. +4829 sources: A dictionary of name to Subqueryables. +4830 copy: Whether or not to copy the expression during transformation. Defaults to True. 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)' +4832 Returns: +4833 The transformed expression. +4834 """ +4835 +4836 def _expand(node: Expression): +4837 if isinstance(node, Table): +4838 name = table_name(node) +4839 source = sources.get(name) +4840 if source: +4841 subquery = source.subquery(node.alias or name) +4842 subquery.comments = [f"source: {name}"] +4843 return subquery +4844 return node 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 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 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 -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) +4846 return expression.transform(_expand, copy=copy) +4847 +4848 +4849def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func: +4850 """ +4851 Returns a Func expression. +4852 +4853 Examples: +4854 >>> func("abs", 5).sql() +4855 'ABS(5)' +4856 +4857 >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql() +4858 'CAST(5 AS DOUBLE)' +4859 +4860 Args: +4861 name: the name of the function to build. +4862 args: the args used to instantiate the function of interest. +4863 dialect: the source dialect. +4864 kwargs: the kwargs used to instantiate the function of interest. +4865 +4866 Note: +4867 The arguments `args` and `kwargs` are mutually exclusive. +4868 +4869 Returns: +4870 An instance of the function of interest, or an anonymous function, if `name` doesn't +4871 correspond to an existing `sqlglot.expressions.Func` class. +4872 """ +4873 if args and kwargs: +4874 raise ValueError("Can't use both args and kwargs to instantiate a function.") 4875 -4876 for error_message in function.error_messages(args): -4877 raise ValueError(error_message) -4878 -4879 return function +4876 from sqlglot.dialects.dialect import Dialect +4877 +4878 converted = [convert(arg) for arg in args] +4879 kwargs = {key: convert(value) for key, value in kwargs.items()} 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) +4881 parser = Dialect.get_or_raise(dialect)().parser() +4882 from_args_list = parser.FUNCTIONS.get(name.upper()) +4883 +4884 if from_args_list: +4885 function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs) # type: ignore +4886 else: +4887 kwargs = kwargs or {"expressions": converted} +4888 function = Anonymous(this=name, **kwargs) +4889 +4890 for error_message in function.error_messages(converted): +4891 raise ValueError(error_message) +4892 +4893 return function 4894 4895 -4896def null(): +4896def true(): 4897 """ -4898 Returns a Null expression. +4898 Returns a true Boolean expression. 4899 """ -4900 return Null() +4900 return Boolean(this=True) 4901 4902 -4903# TODO: deprecate this -4904TRUE = Boolean(this=True) -4905FALSE = Boolean(this=False) -4906NULL = Null() +4903def false(): +4904 """ +4905 Returns a false Boolean expression. +4906 """ +4907 return Boolean(this=False) +4908 +4909 +4910def null(): +4911 """ +4912 Returns a Null expression. +4913 """ +4914 return Null() +4915 +4916 +4917# TODO: deprecate this +4918TRUE = Boolean(this=True) +4919FALSE = Boolean(this=False) +4920NULL = Null()
  • @@ -23506,100 +23547,105 @@ If another Expression instance is passed, 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 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, +2660 UINT = auto() +2661 TINYINT = auto() +2662 UTINYINT = auto() +2663 SMALLINT = auto() +2664 USMALLINT = auto() +2665 BIGINT = auto() +2666 UBIGINT = auto() +2667 FLOAT = auto() +2668 DOUBLE = auto() +2669 DECIMAL = auto() +2670 BIT = auto() +2671 BOOLEAN = auto() +2672 JSON = auto() +2673 JSONB = auto() +2674 INTERVAL = auto() +2675 TIME = auto() +2676 TIMESTAMP = auto() +2677 TIMESTAMPTZ = auto() +2678 TIMESTAMPLTZ = auto() +2679 DATE = auto() +2680 DATETIME = auto() +2681 ARRAY = auto() +2682 MAP = auto() +2683 UUID = auto() +2684 GEOGRAPHY = auto() +2685 GEOMETRY = auto() +2686 STRUCT = auto() +2687 NULLABLE = auto() +2688 HLLSKETCH = auto() +2689 HSTORE = auto() +2690 SUPER = auto() +2691 SERIAL = auto() +2692 SMALLSERIAL = auto() +2693 BIGSERIAL = auto() +2694 XML = auto() +2695 UNIQUEIDENTIFIER = auto() +2696 MONEY = auto() +2697 SMALLMONEY = auto() +2698 ROWVERSION = auto() +2699 IMAGE = auto() +2700 VARIANT = auto() +2701 OBJECT = auto() +2702 INET = auto() +2703 NULL = auto() +2704 UNKNOWN = auto() # Sentinel value, useful for type annotation +2705 +2706 TEXT_TYPES = { +2707 Type.CHAR, +2708 Type.NCHAR, +2709 Type.VARCHAR, +2710 Type.NVARCHAR, +2711 Type.TEXT, +2712 } +2713 +2714 INTEGER_TYPES = { +2715 Type.INT, +2716 Type.TINYINT, +2717 Type.SMALLINT, +2718 Type.BIGINT, 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 +2721 FLOAT_TYPES = { +2722 Type.FLOAT, +2723 Type.DOUBLE, +2724 } +2725 +2726 NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES} +2727 +2728 TEMPORAL_TYPES = { +2729 Type.TIMESTAMP, +2730 Type.TIMESTAMPTZ, +2731 Type.TIMESTAMPLTZ, +2732 Type.DATE, +2733 Type.DATETIME, +2734 } +2735 +2736 @classmethod +2737 def build( +2738 cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs +2739 ) -> DataType: +2740 from sqlglot import parse_one +2741 +2742 if isinstance(dtype, str): +2743 if dtype.upper() in cls.Type.__members__: +2744 data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()]) +2745 else: +2746 data_type_exp = parse_one(dtype, read=dialect, into=DataType) +2747 if data_type_exp is None: +2748 raise ValueError(f"Unparsable data type value: {dtype}") +2749 elif isinstance(dtype, DataType.Type): +2750 data_type_exp = DataType(this=dtype) +2751 elif isinstance(dtype, DataType): +2752 return dtype +2753 else: +2754 raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type") +2755 return DataType(**{**data_type_exp.args, **kwargs}) +2756 +2757 def is_type(self, dtype: DataType.Type) -> bool: +2758 return self.this == dtype @@ -23617,26 +23663,26 @@ If another Expression instance is passed, -
    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})
    +            
    2736    @classmethod
    +2737    def build(
    +2738        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    +2739    ) -> DataType:
    +2740        from sqlglot import parse_one
    +2741
    +2742        if isinstance(dtype, str):
    +2743            if dtype.upper() in cls.Type.__members__:
    +2744                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    +2745            else:
    +2746                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    +2747            if data_type_exp is None:
    +2748                raise ValueError(f"Unparsable data type value: {dtype}")
    +2749        elif isinstance(dtype, DataType.Type):
    +2750            data_type_exp = DataType(this=dtype)
    +2751        elif isinstance(dtype, DataType):
    +2752            return dtype
    +2753        else:
    +2754            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    +2755        return DataType(**{**data_type_exp.args, **kwargs})
     
    @@ -23654,8 +23700,8 @@ If another Expression instance is passed,
    -
    2752    def is_type(self, dtype: DataType.Type) -> bool:
    -2753        return self.this == dtype
    +            
    2757    def is_type(self, dtype: DataType.Type) -> bool:
    +2758        return self.this == dtype
     
    @@ -23730,46 +23776,51 @@ If another Expression instance is passed,
    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 +2660 UINT = auto() +2661 TINYINT = auto() +2662 UTINYINT = auto() +2663 SMALLINT = auto() +2664 USMALLINT = auto() +2665 BIGINT = auto() +2666 UBIGINT = auto() +2667 FLOAT = auto() +2668 DOUBLE = auto() +2669 DECIMAL = auto() +2670 BIT = auto() +2671 BOOLEAN = auto() +2672 JSON = auto() +2673 JSONB = auto() +2674 INTERVAL = auto() +2675 TIME = auto() +2676 TIMESTAMP = auto() +2677 TIMESTAMPTZ = auto() +2678 TIMESTAMPLTZ = auto() +2679 DATE = auto() +2680 DATETIME = auto() +2681 ARRAY = auto() +2682 MAP = auto() +2683 UUID = auto() +2684 GEOGRAPHY = auto() +2685 GEOMETRY = auto() +2686 STRUCT = auto() +2687 NULLABLE = auto() +2688 HLLSKETCH = auto() +2689 HSTORE = auto() +2690 SUPER = auto() +2691 SERIAL = auto() +2692 SMALLSERIAL = auto() +2693 BIGSERIAL = auto() +2694 XML = auto() +2695 UNIQUEIDENTIFIER = auto() +2696 MONEY = auto() +2697 SMALLMONEY = auto() +2698 ROWVERSION = auto() +2699 IMAGE = auto() +2700 VARIANT = auto() +2701 OBJECT = auto() +2702 INET = auto() +2703 NULL = auto() +2704 UNKNOWN = auto() # Sentinel value, useful for type annotation
    @@ -23920,6 +23971,18 @@ If another Expression instance is passed, + +
    +
    + UINT = +<Type.UINT: 'UINT'> + + +
    + + + +
    @@ -23932,6 +23995,18 @@ If another Expression instance is passed, +
    +
    +
    + UTINYINT = +<Type.UTINYINT: 'UTINYINT'> + + +
    + + + +
    @@ -23944,6 +24019,18 @@ If another Expression instance is passed, +
    +
    +
    + USMALLINT = +<Type.USMALLINT: 'USMALLINT'> + + +
    + + + +
    @@ -23956,6 +24043,18 @@ If another Expression instance is passed, +
    +
    +
    + UBIGINT = +<Type.UBIGINT: 'UBIGINT'> + + +
    + + + +
    @@ -23992,6 +24091,18 @@ If another Expression instance is passed, +
    +
    +
    + BIT = +<Type.BIT: 'BIT'> + + +
    + + + +
    @@ -24423,8 +24534,8 @@ If another Expression instance is passed,
    -
    2757class PseudoType(Expression):
    -2758    pass
    +            
    2762class PseudoType(Expression):
    +2763    pass
     
    @@ -24485,8 +24596,8 @@ If another Expression instance is passed,
    -
    2761class StructKwarg(Expression):
    -2762    arg_types = {"this": True, "expression": True}
    +            
    2766class StructKwarg(Expression):
    +2767    arg_types = {"this": True, "expression": True}
     
    @@ -24547,8 +24658,8 @@ If another Expression instance is passed,
    -
    2766class SubqueryPredicate(Predicate):
    -2767    pass
    +            
    2771class SubqueryPredicate(Predicate):
    +2772    pass
     
    @@ -24615,8 +24726,8 @@ If another Expression instance is passed,
    -
    2770class All(SubqueryPredicate):
    -2771    pass
    +            
    2775class All(SubqueryPredicate):
    +2776    pass
     
    @@ -24683,8 +24794,8 @@ If another Expression instance is passed,
    -
    2774class Any(SubqueryPredicate):
    -2775    pass
    +            
    2779class Any(SubqueryPredicate):
    +2780    pass
     
    @@ -24751,8 +24862,8 @@ If another Expression instance is passed,
    -
    2778class Exists(SubqueryPredicate):
    -2779    pass
    +            
    2783class Exists(SubqueryPredicate):
    +2784    pass
     
    @@ -24819,8 +24930,8 @@ If another Expression instance is passed,
    -
    2784class Command(Expression):
    -2785    arg_types = {"this": True, "expression": False}
    +            
    2789class Command(Expression):
    +2790    arg_types = {"this": True, "expression": False}
     
    @@ -24881,8 +24992,8 @@ If another Expression instance is passed,
    -
    2788class Transaction(Expression):
    -2789    arg_types = {"this": False, "modes": False}
    +            
    2793class Transaction(Expression):
    +2794    arg_types = {"this": False, "modes": False}
     
    @@ -24943,8 +25054,8 @@ If another Expression instance is passed,
    -
    2792class Commit(Expression):
    -2793    arg_types = {"chain": False}
    +            
    2797class Commit(Expression):
    +2798    arg_types = {"chain": False}
     
    @@ -25005,8 +25116,8 @@ If another Expression instance is passed,
    -
    2796class Rollback(Expression):
    -2797    arg_types = {"savepoint": False}
    +            
    2801class Rollback(Expression):
    +2802    arg_types = {"savepoint": False}
     
    @@ -25067,8 +25178,8 @@ If another Expression instance is passed,
    -
    2800class AlterTable(Expression):
    -2801    arg_types = {"this": True, "actions": True, "exists": False}
    +            
    2805class AlterTable(Expression):
    +2806    arg_types = {"this": True, "actions": True, "exists": False}
     
    @@ -25129,8 +25240,8 @@ If another Expression instance is passed,
    -
    2804class AddConstraint(Expression):
    -2805    arg_types = {"this": False, "expression": False, "enforced": False}
    +            
    2809class AddConstraint(Expression):
    +2810    arg_types = {"this": False, "expression": False, "enforced": False}
     
    @@ -25191,8 +25302,8 @@ If another Expression instance is passed,
    -
    2808class DropPartition(Expression):
    -2809    arg_types = {"expressions": True, "exists": False}
    +            
    2813class DropPartition(Expression):
    +2814    arg_types = {"expressions": True, "exists": False}
     
    @@ -25253,16 +25364,16 @@ If another Expression instance is passed,
    -
    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
    +            
    2818class Binary(Expression):
    +2819    arg_types = {"this": True, "expression": True}
    +2820
    +2821    @property
    +2822    def left(self):
    +2823        return self.this
    +2824
    +2825    @property
    +2826    def right(self):
    +2827        return self.expression
     
    @@ -25323,8 +25434,8 @@ If another Expression instance is passed,
    -
    2825class Add(Binary):
    -2826    pass
    +            
    2830class Add(Binary):
    +2831    pass
     
    @@ -25385,8 +25496,8 @@ If another Expression instance is passed,
    -
    2829class Connector(Binary, Condition):
    -2830    pass
    +            
    2834class Connector(Binary, Condition):
    +2835    pass
     
    @@ -25453,8 +25564,8 @@ If another Expression instance is passed,
    -
    2833class And(Connector):
    -2834    pass
    +            
    2838class And(Connector):
    +2839    pass
     
    @@ -25521,8 +25632,8 @@ If another Expression instance is passed,
    -
    2837class Or(Connector):
    -2838    pass
    +            
    2842class Or(Connector):
    +2843    pass
     
    @@ -25589,8 +25700,8 @@ If another Expression instance is passed,
    -
    2841class BitwiseAnd(Binary):
    -2842    pass
    +            
    2846class BitwiseAnd(Binary):
    +2847    pass
     
    @@ -25651,8 +25762,8 @@ If another Expression instance is passed,
    -
    2845class BitwiseLeftShift(Binary):
    -2846    pass
    +            
    2850class BitwiseLeftShift(Binary):
    +2851    pass
     
    @@ -25713,8 +25824,8 @@ If another Expression instance is passed,
    -
    2849class BitwiseOr(Binary):
    -2850    pass
    +            
    2854class BitwiseOr(Binary):
    +2855    pass
     
    @@ -25775,8 +25886,8 @@ If another Expression instance is passed,
    -
    2853class BitwiseRightShift(Binary):
    -2854    pass
    +            
    2858class BitwiseRightShift(Binary):
    +2859    pass
     
    @@ -25837,8 +25948,8 @@ If another Expression instance is passed,
    -
    2857class BitwiseXor(Binary):
    -2858    pass
    +            
    2862class BitwiseXor(Binary):
    +2863    pass
     
    @@ -25899,8 +26010,8 @@ If another Expression instance is passed,
    -
    2861class Div(Binary):
    -2862    pass
    +            
    2866class Div(Binary):
    +2867    pass
     
    @@ -25961,8 +26072,8 @@ If another Expression instance is passed,
    -
    2865class FloatDiv(Binary):
    -2866    pass
    +            
    2870class FloatDiv(Binary):
    +2871    pass
     
    @@ -26023,8 +26134,8 @@ If another Expression instance is passed,
    -
    2869class Overlaps(Binary):
    -2870    pass
    +            
    2874class Overlaps(Binary):
    +2875    pass
     
    @@ -26085,10 +26196,10 @@ If another Expression instance is passed,
    -
    2873class Dot(Binary):
    -2874    @property
    -2875    def name(self) -> str:
    -2876        return self.expression.name
    +            
    2878class Dot(Binary):
    +2879    @property
    +2880    def name(self) -> str:
    +2881        return self.expression.name
     
    @@ -26149,8 +26260,8 @@ If another Expression instance is passed,
    -
    2879class DPipe(Binary):
    -2880    pass
    +            
    2884class DPipe(Binary):
    +2885    pass
     
    @@ -26211,8 +26322,8 @@ If another Expression instance is passed,
    -
    2883class EQ(Binary, Predicate):
    -2884    pass
    +            
    2888class EQ(Binary, Predicate):
    +2889    pass
     
    @@ -26279,8 +26390,8 @@ If another Expression instance is passed,
    -
    2887class NullSafeEQ(Binary, Predicate):
    -2888    pass
    +            
    2892class NullSafeEQ(Binary, Predicate):
    +2893    pass
     
    @@ -26347,8 +26458,8 @@ If another Expression instance is passed,
    -
    2891class NullSafeNEQ(Binary, Predicate):
    -2892    pass
    +            
    2896class NullSafeNEQ(Binary, Predicate):
    +2897    pass
     
    @@ -26415,8 +26526,8 @@ If another Expression instance is passed,
    -
    2895class Distance(Binary):
    -2896    pass
    +            
    2900class Distance(Binary):
    +2901    pass
     
    @@ -26477,8 +26588,8 @@ If another Expression instance is passed,
    -
    2899class Escape(Binary):
    -2900    pass
    +            
    2904class Escape(Binary):
    +2905    pass
     
    @@ -26539,8 +26650,8 @@ If another Expression instance is passed,
    -
    2903class Glob(Binary, Predicate):
    -2904    pass
    +            
    2908class Glob(Binary, Predicate):
    +2909    pass
     
    @@ -26607,8 +26718,8 @@ If another Expression instance is passed,
    -
    2907class GT(Binary, Predicate):
    -2908    pass
    +            
    2912class GT(Binary, Predicate):
    +2913    pass
     
    @@ -26675,8 +26786,8 @@ If another Expression instance is passed,
    -
    2911class GTE(Binary, Predicate):
    -2912    pass
    +            
    2916class GTE(Binary, Predicate):
    +2917    pass
     
    @@ -26743,8 +26854,8 @@ If another Expression instance is passed,
    -
    2915class ILike(Binary, Predicate):
    -2916    pass
    +            
    2920class ILike(Binary, Predicate):
    +2921    pass
     
    @@ -26811,8 +26922,8 @@ If another Expression instance is passed,
    -
    2919class ILikeAny(Binary, Predicate):
    -2920    pass
    +            
    2924class ILikeAny(Binary, Predicate):
    +2925    pass
     
    @@ -26879,8 +26990,8 @@ If another Expression instance is passed,
    -
    2923class IntDiv(Binary):
    -2924    pass
    +            
    2928class IntDiv(Binary):
    +2929    pass
     
    @@ -26941,8 +27052,8 @@ If another Expression instance is passed,
    -
    2927class Is(Binary, Predicate):
    -2928    pass
    +            
    2932class Is(Binary, Predicate):
    +2933    pass
     
    @@ -27009,8 +27120,8 @@ If another Expression instance is passed,
    -
    2931class Kwarg(Binary):
    -2932    """Kwarg in special functions like func(kwarg => y)."""
    +            
    2936class Kwarg(Binary):
    +2937    """Kwarg in special functions like func(kwarg => y)."""
     
    @@ -27073,8 +27184,8 @@ If another Expression instance is passed,
    -
    2935class Like(Binary, Predicate):
    -2936    pass
    +            
    2940class Like(Binary, Predicate):
    +2941    pass
     
    @@ -27141,8 +27252,8 @@ If another Expression instance is passed,
    -
    2939class LikeAny(Binary, Predicate):
    -2940    pass
    +            
    2944class LikeAny(Binary, Predicate):
    +2945    pass
     
    @@ -27209,8 +27320,8 @@ If another Expression instance is passed,
    -
    2943class LT(Binary, Predicate):
    -2944    pass
    +            
    2948class LT(Binary, Predicate):
    +2949    pass
     
    @@ -27277,8 +27388,8 @@ If another Expression instance is passed,
    -
    2947class LTE(Binary, Predicate):
    -2948    pass
    +            
    2952class LTE(Binary, Predicate):
    +2953    pass
     
    @@ -27345,8 +27456,8 @@ If another Expression instance is passed,
    -
    2951class Mod(Binary):
    -2952    pass
    +            
    2956class Mod(Binary):
    +2957    pass
     
    @@ -27407,8 +27518,8 @@ If another Expression instance is passed,
    -
    2955class Mul(Binary):
    -2956    pass
    +            
    2960class Mul(Binary):
    +2961    pass
     
    @@ -27469,8 +27580,8 @@ If another Expression instance is passed,
    -
    2959class NEQ(Binary, Predicate):
    -2960    pass
    +            
    2964class NEQ(Binary, Predicate):
    +2965    pass
     
    @@ -27537,8 +27648,8 @@ If another Expression instance is passed,
    -
    2963class SimilarTo(Binary, Predicate):
    -2964    pass
    +            
    2968class SimilarTo(Binary, Predicate):
    +2969    pass
     
    @@ -27605,8 +27716,8 @@ If another Expression instance is passed,
    -
    2967class Slice(Binary):
    -2968    arg_types = {"this": False, "expression": False}
    +            
    2972class Slice(Binary):
    +2973    arg_types = {"this": False, "expression": False}
     
    @@ -27667,8 +27778,8 @@ If another Expression instance is passed,
    -
    2971class Sub(Binary):
    -2972    pass
    +            
    2976class Sub(Binary):
    +2977    pass
     
    @@ -27714,6 +27825,68 @@ If another Expression instance is passed,
    dump
    load
    +
    + +
    + +
    + +
    + + class + ArrayOverlaps(Binary): + + + +
    + +
    2980class ArrayOverlaps(Binary):
    +2981    pass
    +
    + + + + + @@ -27729,8 +27902,8 @@ If another Expression instance is passed,
    -
    2977class Unary(Expression):
    -2978    pass
    +            
    2986class Unary(Expression):
    +2987    pass
     
    @@ -27791,8 +27964,8 @@ If another Expression instance is passed,
    -
    2981class BitwiseNot(Unary):
    -2982    pass
    +            
    2990class BitwiseNot(Unary):
    +2991    pass
     
    @@ -27853,8 +28026,8 @@ If another Expression instance is passed,
    -
    2985class Not(Unary, Condition):
    -2986    pass
    +            
    2994class Not(Unary, Condition):
    +2995    pass
     
    @@ -27921,8 +28094,8 @@ If another Expression instance is passed,
    -
    2989class Paren(Unary, Condition):
    -2990    arg_types = {"this": True, "with": False}
    +            
    2998class Paren(Unary, Condition):
    +2999    arg_types = {"this": True, "with": False}
     
    @@ -27989,8 +28162,8 @@ If another Expression instance is passed,
    -
    2993class Neg(Unary):
    -2994    pass
    +            
    3002class Neg(Unary):
    +3003    pass
     
    @@ -28051,12 +28224,12 @@ If another Expression instance is passed,
    -
    2998class Alias(Expression):
    -2999    arg_types = {"this": True, "alias": False}
    -3000
    -3001    @property
    -3002    def output_name(self):
    -3003        return self.alias
    +            
    3007class Alias(Expression):
    +3008    arg_types = {"this": True, "alias": False}
    +3009
    +3010    @property
    +3011    def output_name(self):
    +3012        return self.alias
     
    @@ -28146,12 +28319,12 @@ If another Expression instance is passed,
    -
    3006class Aliases(Expression):
    -3007    arg_types = {"this": True, "expressions": True}
    -3008
    -3009    @property
    -3010    def aliases(self):
    -3011        return self.expressions
    +            
    3015class Aliases(Expression):
    +3016    arg_types = {"this": True, "expressions": True}
    +3017
    +3018    @property
    +3019    def aliases(self):
    +3020        return self.expressions
     
    @@ -28212,8 +28385,8 @@ If another Expression instance is passed,
    -
    3014class AtTimeZone(Expression):
    -3015    arg_types = {"this": True, "zone": True}
    +            
    3023class AtTimeZone(Expression):
    +3024    arg_types = {"this": True, "zone": True}
     
    @@ -28274,8 +28447,8 @@ If another Expression instance is passed,
    -
    3018class Between(Predicate):
    -3019    arg_types = {"this": True, "low": True, "high": True}
    +            
    3027class Between(Predicate):
    +3028    arg_types = {"this": True, "low": True, "high": True}
     
    @@ -28342,8 +28515,8 @@ If another Expression instance is passed,
    -
    3022class Bracket(Condition):
    -3023    arg_types = {"this": True, "expressions": True}
    +            
    3031class Bracket(Condition):
    +3032    arg_types = {"this": True, "expressions": True}
     
    @@ -28410,8 +28583,8 @@ If another Expression instance is passed,
    -
    3026class Distinct(Expression):
    -3027    arg_types = {"expressions": False, "on": False}
    +            
    3035class Distinct(Expression):
    +3036    arg_types = {"expressions": False, "on": False}
     
    @@ -28472,15 +28645,15 @@ If another Expression instance is passed,
    -
    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    }
    +            
    3039class In(Predicate):
    +3040    arg_types = {
    +3041        "this": True,
    +3042        "expressions": False,
    +3043        "query": False,
    +3044        "unnest": False,
    +3045        "field": False,
    +3046        "is_global": False,
    +3047    }
     
    @@ -28547,18 +28720,18 @@ If another Expression instance is passed,
    -
    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)
    +            
    3050class TimeUnit(Expression):
    +3051    """Automatically converts unit arg into a var."""
    +3052
    +3053    arg_types = {"unit": False}
    +3054
    +3055    def __init__(self, **args):
    +3056        unit = args.get("unit")
    +3057        if isinstance(unit, Column):
    +3058            args["unit"] = Var(this=unit.name)
    +3059        elif isinstance(unit, Week):
    +3060            unit.set("this", Var(this=unit.this.name))
    +3061        super().__init__(**args)
     
    @@ -28576,13 +28749,13 @@ If another Expression instance is passed,
    -
    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)
    +            
    3055    def __init__(self, **args):
    +3056        unit = args.get("unit")
    +3057        if isinstance(unit, Column):
    +3058            args["unit"] = Var(this=unit.name)
    +3059        elif isinstance(unit, Week):
    +3060            unit.set("this", Var(this=unit.this.name))
    +3061        super().__init__(**args)
     
    @@ -28643,8 +28816,8 @@ If another Expression instance is passed,
    -
    3055class Interval(TimeUnit):
    -3056    arg_types = {"this": False, "unit": False}
    +            
    3064class Interval(TimeUnit):
    +3065    arg_types = {"this": False, "unit": False}
     
    @@ -28708,8 +28881,8 @@ If another Expression instance is passed,
    -
    3059class IgnoreNulls(Expression):
    -3060    pass
    +            
    3068class IgnoreNulls(Expression):
    +3069    pass
     
    @@ -28770,8 +28943,8 @@ If another Expression instance is passed,
    -
    3063class RespectNulls(Expression):
    -3064    pass
    +            
    3072class RespectNulls(Expression):
    +3073    pass
     
    @@ -28832,53 +29005,53 @@ If another Expression instance is passed,
    -
    3068class Func(Condition):
    -3069    """
    -3070    The base class for all function expressions.
    -3071
    -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    """
    +            
    3077class Func(Condition):
    +3078    """
    +3079    The base class for all function expressions.
     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()}
    +3081    Attributes:
    +3082        is_var_len_args (bool): if set to True the last argument defined in arg_types will be
    +3083            treated as a variable length argument and the argument's value will be stored as a list.
    +3084        _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)
    +3085            for this function expression. These values are used to map this node to a name during parsing
    +3086            as well as to provide the function's name during SQL string generation. By default the SQL
    +3087            name is set to the expression's class name transformed to snake case.
    +3088    """
    +3089
    +3090    is_var_len_args = False
    +3091
    +3092    @classmethod
    +3093    def from_arg_list(cls, args):
    +3094        if cls.is_var_len_args:
    +3095            all_arg_keys = list(cls.arg_types)
    +3096            # If this function supports variable length argument treat the last argument as such.
    +3097            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    +3098            num_non_var = len(non_var_len_arg_keys)
    +3099
    +3100            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    +3101            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    +3102        else:
    +3103            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    +3104
    +3105        return cls(**args_dict)
    +3106
    +3107    @classmethod
    +3108    def sql_names(cls):
    +3109        if cls is Func:
    +3110            raise NotImplementedError(
    +3111                "SQL name is only supported by concrete function implementations"
    +3112            )
    +3113        if "_sql_names" not in cls.__dict__:
    +3114            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    +3115        return cls._sql_names
    +3116
    +3117    @classmethod
    +3118    def sql_name(cls):
    +3119        return cls.sql_names()[0]
    +3120
    +3121    @classmethod
    +3122    def default_parser_mappings(cls):
    +3123        return {name: cls.from_arg_list for name in cls.sql_names()}
     
    @@ -28909,20 +29082,20 @@ name is set to the expression's class name transformed to snake case.
    -
    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)
    +            
    3092    @classmethod
    +3093    def from_arg_list(cls, args):
    +3094        if cls.is_var_len_args:
    +3095            all_arg_keys = list(cls.arg_types)
    +3096            # If this function supports variable length argument treat the last argument as such.
    +3097            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    +3098            num_non_var = len(non_var_len_arg_keys)
    +3099
    +3100            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    +3101            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    +3102        else:
    +3103            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    +3104
    +3105        return cls(**args_dict)
     
    @@ -28941,15 +29114,15 @@ name is set to the expression's class name transformed to snake case.
    -
    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    @classmethod
    +3108    def sql_names(cls):
    +3109        if cls is Func:
    +3110            raise NotImplementedError(
    +3111                "SQL name is only supported by concrete function implementations"
    +3112            )
    +3113        if "_sql_names" not in cls.__dict__:
    +3114            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    +3115        return cls._sql_names
     
    @@ -28968,9 +29141,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3108    @classmethod
    -3109    def sql_name(cls):
    -3110        return cls.sql_names()[0]
    +            
    3117    @classmethod
    +3118    def sql_name(cls):
    +3119        return cls.sql_names()[0]
     
    @@ -28989,9 +29162,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3112    @classmethod
    -3113    def default_parser_mappings(cls):
    -3114        return {name: cls.from_arg_list for name in cls.sql_names()}
    +            
    3121    @classmethod
    +3122    def default_parser_mappings(cls):
    +3123        return {name: cls.from_arg_list for name in cls.sql_names()}
     
    @@ -29059,8 +29232,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3117class AggFunc(Func):
    -3118    pass
    +            
    3126class AggFunc(Func):
    +3127    pass
     
    @@ -29134,8 +29307,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3121class Abs(Func):
    -3122    pass
    +            
    3130class Abs(Func):
    +3131    pass
     
    @@ -29209,9 +29382,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3125class Anonymous(Func):
    -3126    arg_types = {"this": True, "expressions": False}
    -3127    is_var_len_args = True
    +            
    3134class Anonymous(Func):
    +3135    arg_types = {"this": True, "expressions": False}
    +3136    is_var_len_args = True
     
    @@ -29285,8 +29458,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3130class ApproxDistinct(AggFunc):
    -3131    arg_types = {"this": True, "accuracy": False}
    +            
    3139class ApproxDistinct(AggFunc):
    +3140    arg_types = {"this": True, "accuracy": False}
     
    @@ -29360,9 +29533,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3134class Array(Func):
    -3135    arg_types = {"expressions": False}
    -3136    is_var_len_args = True
    +            
    3143class Array(Func):
    +3144    arg_types = {"expressions": False}
    +3145    is_var_len_args = True
     
    @@ -29436,8 +29609,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3139class GenerateSeries(Func):
    -3140    arg_types = {"start": True, "end": True, "step": False}
    +            
    3148class GenerateSeries(Func):
    +3149    arg_types = {"start": True, "end": True, "step": False}
     
    @@ -29511,8 +29684,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3143class ArrayAgg(AggFunc):
    -3144    pass
    +            
    3152class ArrayAgg(AggFunc):
    +3153    pass
     
    @@ -29586,8 +29759,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3147class ArrayAll(Func):
    -3148    arg_types = {"this": True, "expression": True}
    +            
    3156class ArrayAll(Func):
    +3157    arg_types = {"this": True, "expression": True}
     
    @@ -29661,8 +29834,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3151class ArrayAny(Func):
    -3152    arg_types = {"this": True, "expression": True}
    +            
    3160class ArrayAny(Func):
    +3161    arg_types = {"this": True, "expression": True}
     
    @@ -29736,9 +29909,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3155class ArrayConcat(Func):
    -3156    arg_types = {"this": True, "expressions": False}
    -3157    is_var_len_args = True
    +            
    3164class ArrayConcat(Func):
    +3165    arg_types = {"this": True, "expressions": False}
    +3166    is_var_len_args = True
     
    @@ -29806,14 +29979,14 @@ name is set to the expression's class name transformed to snake case.
    class - ArrayContains(Func): + ArrayContains(Binary, Func):
    -
    3160class ArrayContains(Func):
    -3161    arg_types = {"this": True, "expression": True}
    +            
    3169class ArrayContains(Binary, Func):
    +3170    pass
     
    @@ -29872,6 +30045,68 @@ name is set to the expression's class name transformed to snake case.
    or_
    not_
    +
    + +
    + +
    + +
    + + class + ArrayContained(Binary): + + + +
    + +
    3173class ArrayContained(Binary):
    +3174    pass
    +
    + + + + + @@ -29887,9 +30122,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3164class ArrayFilter(Func):
    -3165    arg_types = {"this": True, "expression": True}
    -3166    _sql_names = ["FILTER", "ARRAY_FILTER"]
    +            
    3177class ArrayFilter(Func):
    +3178    arg_types = {"this": True, "expression": True}
    +3179    _sql_names = ["FILTER", "ARRAY_FILTER"]
     
    @@ -29963,8 +30198,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3169class ArrayJoin(Func):
    -3170    arg_types = {"this": True, "expression": True, "null": False}
    +            
    3182class ArrayJoin(Func):
    +3183    arg_types = {"this": True, "expression": True, "null": False}
     
    @@ -30038,8 +30273,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3173class ArraySize(Func):
    -3174    arg_types = {"this": True, "expression": False}
    +            
    3186class ArraySize(Func):
    +3187    arg_types = {"this": True, "expression": False}
     
    @@ -30113,8 +30348,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3177class ArraySort(Func):
    -3178    arg_types = {"this": True, "expression": False}
    +            
    3190class ArraySort(Func):
    +3191    arg_types = {"this": True, "expression": False}
     
    @@ -30188,8 +30423,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3181class ArraySum(Func):
    -3182    pass
    +            
    3194class ArraySum(Func):
    +3195    pass
     
    @@ -30263,8 +30498,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3185class ArrayUnionAgg(AggFunc):
    -3186    pass
    +            
    3198class ArrayUnionAgg(AggFunc):
    +3199    pass
     
    @@ -30338,8 +30573,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3189class Avg(AggFunc):
    -3190    pass
    +            
    3202class Avg(AggFunc):
    +3203    pass
     
    @@ -30413,8 +30648,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3193class AnyValue(AggFunc):
    -3194    pass
    +            
    3206class AnyValue(AggFunc):
    +3207    pass
     
    @@ -30488,8 +30723,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3197class Case(Func):
    -3198    arg_types = {"this": False, "ifs": True, "default": False}
    +            
    3210class Case(Func):
    +3211    arg_types = {"this": False, "ifs": True, "default": False}
     
    @@ -30563,23 +30798,23 @@ name is set to the expression's class name transformed to snake case.
    -
    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)
    +            
    3214class Cast(Func):
    +3215    arg_types = {"this": True, "to": True}
    +3216
    +3217    @property
    +3218    def name(self) -> str:
    +3219        return self.this.name
    +3220
    +3221    @property
    +3222    def to(self):
    +3223        return self.args["to"]
    +3224
    +3225    @property
    +3226    def output_name(self):
    +3227        return self.name
    +3228
    +3229    def is_type(self, dtype: DataType.Type) -> bool:
    +3230        return self.to.is_type(dtype)
     
    @@ -30626,8 +30861,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3216    def is_type(self, dtype: DataType.Type) -> bool:
    -3217        return self.to.is_type(dtype)
    +            
    3229    def is_type(self, dtype: DataType.Type) -> bool:
    +3230        return self.to.is_type(dtype)
     
    @@ -30701,8 +30936,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3220class Collate(Binary):
    -3221    pass
    +            
    3233class Collate(Binary):
    +3234    pass
     
    @@ -30763,8 +30998,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3224class TryCast(Cast):
    -3225    pass
    +            
    3237class TryCast(Cast):
    +3238    pass
     
    @@ -30842,9 +31077,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3228class Ceil(Func):
    -3229    arg_types = {"this": True, "decimals": False}
    -3230    _sql_names = ["CEIL", "CEILING"]
    +            
    3241class Ceil(Func):
    +3242    arg_types = {"this": True, "decimals": False}
    +3243    _sql_names = ["CEIL", "CEILING"]
     
    @@ -30918,9 +31153,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3233class Coalesce(Func):
    -3234    arg_types = {"this": True, "expressions": False}
    -3235    is_var_len_args = True
    +            
    3246class Coalesce(Func):
    +3247    arg_types = {"this": True, "expressions": False}
    +3248    is_var_len_args = True
     
    @@ -30994,9 +31229,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3238class Concat(Func):
    -3239    arg_types = {"expressions": True}
    -3240    is_var_len_args = True
    +            
    3251class Concat(Func):
    +3252    arg_types = {"expressions": True}
    +3253    is_var_len_args = True
     
    @@ -31070,8 +31305,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3243class ConcatWs(Concat):
    -3244    _sql_names = ["CONCAT_WS"]
    +            
    3256class ConcatWs(Concat):
    +3257    _sql_names = ["CONCAT_WS"]
     
    @@ -31145,8 +31380,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3247class Count(AggFunc):
    -3248    arg_types = {"this": False}
    +            
    3260class Count(AggFunc):
    +3261    arg_types = {"this": False}
     
    @@ -31220,8 +31455,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3251class CurrentDate(Func):
    -3252    arg_types = {"this": False}
    +            
    3264class CurrentDate(Func):
    +3265    arg_types = {"this": False}
     
    @@ -31295,8 +31530,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3255class CurrentDatetime(Func):
    -3256    arg_types = {"this": False}
    +            
    3268class CurrentDatetime(Func):
    +3269    arg_types = {"this": False}
     
    @@ -31370,8 +31605,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3259class CurrentTime(Func):
    -3260    arg_types = {"this": False}
    +            
    3272class CurrentTime(Func):
    +3273    arg_types = {"this": False}
     
    @@ -31445,8 +31680,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3263class CurrentTimestamp(Func):
    -3264    arg_types = {"this": False}
    +            
    3276class CurrentTimestamp(Func):
    +3277    arg_types = {"this": False}
     
    @@ -31520,8 +31755,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3267class DateAdd(Func, TimeUnit):
    -3268    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3280class DateAdd(Func, TimeUnit):
    +3281    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31598,8 +31833,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3271class DateSub(Func, TimeUnit):
    -3272    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3284class DateSub(Func, TimeUnit):
    +3285    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31676,8 +31911,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3275class DateDiff(Func, TimeUnit):
    -3276    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3288class DateDiff(Func, TimeUnit):
    +3289    _sql_names = ["DATEDIFF", "DATE_DIFF"]
    +3290    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31754,8 +31990,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3279class DateTrunc(Func):
    -3280    arg_types = {"unit": True, "this": True, "zone": False}
    +            
    3293class DateTrunc(Func):
    +3294    arg_types = {"unit": True, "this": True, "zone": False}
     
    @@ -31829,8 +32065,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3283class DatetimeAdd(Func, TimeUnit):
    -3284    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3297class DatetimeAdd(Func, TimeUnit):
    +3298    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31907,8 +32143,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3287class DatetimeSub(Func, TimeUnit):
    -3288    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3301class DatetimeSub(Func, TimeUnit):
    +3302    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -31985,8 +32221,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3291class DatetimeDiff(Func, TimeUnit):
    -3292    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3305class DatetimeDiff(Func, TimeUnit):
    +3306    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32063,8 +32299,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3295class DatetimeTrunc(Func, TimeUnit):
    -3296    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3309class DatetimeTrunc(Func, TimeUnit):
    +3310    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -32141,8 +32377,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3299class DayOfWeek(Func):
    -3300    _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"]
    +            
    3313class DayOfWeek(Func):
    +3314    _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"]
     
    @@ -32216,8 +32452,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3303class DayOfMonth(Func):
    -3304    _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"]
    +            
    3317class DayOfMonth(Func):
    +3318    _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"]
     
    @@ -32291,8 +32527,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3307class DayOfYear(Func):
    -3308    _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"]
    +            
    3321class DayOfYear(Func):
    +3322    _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"]
     
    @@ -32366,8 +32602,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3311class WeekOfYear(Func):
    -3312    _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"]
    +            
    3325class WeekOfYear(Func):
    +3326    _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"]
     
    @@ -32441,8 +32677,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3315class LastDateOfMonth(Func):
    -3316    pass
    +            
    3329class LastDateOfMonth(Func):
    +3330    pass
     
    @@ -32516,8 +32752,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3319class Extract(Func):
    -3320    arg_types = {"this": True, "expression": True}
    +            
    3333class Extract(Func):
    +3334    arg_types = {"this": True, "expression": True}
     
    @@ -32591,8 +32827,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3323class TimestampAdd(Func, TimeUnit):
    -3324    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3337class TimestampAdd(Func, TimeUnit):
    +3338    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32669,8 +32905,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3327class TimestampSub(Func, TimeUnit):
    -3328    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3341class TimestampSub(Func, TimeUnit):
    +3342    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32747,8 +32983,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3331class TimestampDiff(Func, TimeUnit):
    -3332    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3345class TimestampDiff(Func, TimeUnit):
    +3346    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32825,8 +33061,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3335class TimestampTrunc(Func, TimeUnit):
    -3336    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3349class TimestampTrunc(Func, TimeUnit):
    +3350    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -32903,8 +33139,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3339class TimeAdd(Func, TimeUnit):
    -3340    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3353class TimeAdd(Func, TimeUnit):
    +3354    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -32981,8 +33217,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3343class TimeSub(Func, TimeUnit):
    -3344    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3357class TimeSub(Func, TimeUnit):
    +3358    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -33059,8 +33295,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3347class TimeDiff(Func, TimeUnit):
    -3348    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3361class TimeDiff(Func, TimeUnit):
    +3362    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -33137,8 +33373,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3351class TimeTrunc(Func, TimeUnit):
    -3352    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3365class TimeTrunc(Func, TimeUnit):
    +3366    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -33215,9 +33451,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3355class DateFromParts(Func):
    -3356    _sql_names = ["DATEFROMPARTS"]
    -3357    arg_types = {"year": True, "month": True, "day": True}
    +            
    3369class DateFromParts(Func):
    +3370    _sql_names = ["DATEFROMPARTS"]
    +3371    arg_types = {"year": True, "month": True, "day": True}
     
    @@ -33291,8 +33527,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3360class DateStrToDate(Func):
    -3361    pass
    +            
    3374class DateStrToDate(Func):
    +3375    pass
     
    @@ -33366,8 +33602,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3364class DateToDateStr(Func):
    -3365    pass
    +            
    3378class DateToDateStr(Func):
    +3379    pass
     
    @@ -33441,8 +33677,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3368class DateToDi(Func):
    -3369    pass
    +            
    3382class DateToDi(Func):
    +3383    pass
     
    @@ -33516,8 +33752,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3372class Day(Func):
    -3373    pass
    +            
    3386class Day(Func):
    +3387    pass
     
    @@ -33591,8 +33827,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3376class Decode(Func):
    -3377    arg_types = {"this": True, "charset": True, "replace": False}
    +            
    3390class Decode(Func):
    +3391    arg_types = {"this": True, "charset": True, "replace": False}
     
    @@ -33666,8 +33902,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3380class DiToDate(Func):
    -3381    pass
    +            
    3394class DiToDate(Func):
    +3395    pass
     
    @@ -33741,8 +33977,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3384class Encode(Func):
    -3385    arg_types = {"this": True, "charset": True}
    +            
    3398class Encode(Func):
    +3399    arg_types = {"this": True, "charset": True}
     
    @@ -33816,8 +34052,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3388class Exp(Func):
    -3389    pass
    +            
    3402class Exp(Func):
    +3403    pass
     
    @@ -33891,8 +34127,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3392class Explode(Func):
    -3393    pass
    +            
    3406class Explode(Func):
    +3407    pass
     
    @@ -33966,8 +34202,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3396class Floor(Func):
    -3397    arg_types = {"this": True, "decimals": False}
    +            
    3410class Floor(Func):
    +3411    arg_types = {"this": True, "decimals": False}
     
    @@ -34041,9 +34277,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3400class Greatest(Func):
    -3401    arg_types = {"this": True, "expressions": False}
    -3402    is_var_len_args = True
    +            
    3414class Greatest(Func):
    +3415    arg_types = {"this": True, "expressions": False}
    +3416    is_var_len_args = True
     
    @@ -34117,8 +34353,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3405class GroupConcat(Func):
    -3406    arg_types = {"this": True, "separator": False}
    +            
    3419class GroupConcat(Func):
    +3420    arg_types = {"this": True, "separator": False}
     
    @@ -34192,8 +34428,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3409class Hex(Func):
    -3410    pass
    +            
    3423class Hex(Func):
    +3424    pass
     
    @@ -34267,8 +34503,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3413class If(Func):
    -3414    arg_types = {"this": True, "true": True, "false": False}
    +            
    3427class If(Func):
    +3428    arg_types = {"this": True, "true": True, "false": False}
     
    @@ -34342,9 +34578,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3417class IfNull(Func):
    -3418    arg_types = {"this": True, "expression": False}
    -3419    _sql_names = ["IFNULL", "NVL"]
    +            
    3431class IfNull(Func):
    +3432    arg_types = {"this": True, "expression": False}
    +3433    _sql_names = ["IFNULL", "NVL"]
     
    @@ -34418,8 +34654,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3422class Initcap(Func):
    -3423    pass
    +            
    3436class Initcap(Func):
    +3437    pass
     
    @@ -34493,8 +34729,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3426class JSONBContains(Binary):
    -3427    _sql_names = ["JSONB_CONTAINS"]
    +            
    3440class JSONBContains(Binary):
    +3441    _sql_names = ["JSONB_CONTAINS"]
     
    @@ -34555,8 +34791,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3430class JSONExtract(Binary, Func):
    -3431    _sql_names = ["JSON_EXTRACT"]
    +            
    3444class JSONExtract(Binary, Func):
    +3445    _sql_names = ["JSON_EXTRACT"]
     
    @@ -34630,8 +34866,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3434class JSONExtractScalar(JSONExtract):
    -3435    _sql_names = ["JSON_EXTRACT_SCALAR"]
    +            
    3448class JSONExtractScalar(JSONExtract):
    +3449    _sql_names = ["JSON_EXTRACT_SCALAR"]
     
    @@ -34705,8 +34941,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3438class JSONBExtract(JSONExtract):
    -3439    _sql_names = ["JSONB_EXTRACT"]
    +            
    3452class JSONBExtract(JSONExtract):
    +3453    _sql_names = ["JSONB_EXTRACT"]
     
    @@ -34780,8 +35016,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3442class JSONBExtractScalar(JSONExtract):
    -3443    _sql_names = ["JSONB_EXTRACT_SCALAR"]
    +            
    3456class JSONBExtractScalar(JSONExtract):
    +3457    _sql_names = ["JSONB_EXTRACT_SCALAR"]
     
    @@ -34855,9 +35091,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3446class Least(Func):
    -3447    arg_types = {"expressions": False}
    -3448    is_var_len_args = True
    +            
    3460class Least(Func):
    +3461    arg_types = {"expressions": False}
    +3462    is_var_len_args = True
     
    @@ -34931,8 +35167,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3451class Length(Func):
    -3452    pass
    +            
    3465class Length(Func):
    +3466    pass
     
    @@ -35006,14 +35242,14 @@ name is set to the expression's class name transformed to snake case.
    -
    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    }
    +            
    3469class Levenshtein(Func):
    +3470    arg_types = {
    +3471        "this": True,
    +3472        "expression": False,
    +3473        "ins_cost": False,
    +3474        "del_cost": False,
    +3475        "sub_cost": False,
    +3476    }
     
    @@ -35087,8 +35323,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3465class Ln(Func):
    -3466    pass
    +            
    3479class Ln(Func):
    +3480    pass
     
    @@ -35162,8 +35398,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3469class Log(Func):
    -3470    arg_types = {"this": True, "expression": False}
    +            
    3483class Log(Func):
    +3484    arg_types = {"this": True, "expression": False}
     
    @@ -35237,8 +35473,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3473class Log2(Func):
    -3474    pass
    +            
    3487class Log2(Func):
    +3488    pass
     
    @@ -35312,8 +35548,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3477class Log10(Func):
    -3478    pass
    +            
    3491class Log10(Func):
    +3492    pass
     
    @@ -35387,8 +35623,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3481class LogicalOr(AggFunc):
    -3482    _sql_names = ["LOGICAL_OR", "BOOL_OR"]
    +            
    3495class LogicalOr(AggFunc):
    +3496    _sql_names = ["LOGICAL_OR", "BOOL_OR"]
     
    @@ -35462,8 +35698,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3485class Lower(Func):
    -3486    _sql_names = ["LOWER", "LCASE"]
    +            
    3499class Lower(Func):
    +3500    _sql_names = ["LOWER", "LCASE"]
     
    @@ -35537,8 +35773,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3489class Map(Func):
    -3490    arg_types = {"keys": False, "values": False}
    +            
    3503class Map(Func):
    +3504    arg_types = {"keys": False, "values": False}
     
    @@ -35612,9 +35848,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3493class VarMap(Func):
    -3494    arg_types = {"keys": True, "values": True}
    -3495    is_var_len_args = True
    +            
    3507class VarMap(Func):
    +3508    arg_types = {"keys": True, "values": True}
    +3509    is_var_len_args = True
     
    @@ -35688,14 +35924,14 @@ name is set to the expression's class name transformed to snake case.
    -
    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
    +            
    3512class Matches(Func):
    +3513    """Oracle/Snowflake decode.
    +3514    https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm
    +3515    Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)
    +3516    """
    +3517
    +3518    arg_types = {"this": True, "expressions": True}
    +3519    is_var_len_args = True
     
    @@ -35773,9 +36009,9 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3508class Max(AggFunc):
    -3509    arg_types = {"this": True, "expressions": False}
    -3510    is_var_len_args = True
    +            
    3522class Max(AggFunc):
    +3523    arg_types = {"this": True, "expressions": False}
    +3524    is_var_len_args = True
     
    @@ -35849,9 +36085,9 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3513class Min(AggFunc):
    -3514    arg_types = {"this": True, "expressions": False}
    -3515    is_var_len_args = True
    +            
    3527class Min(AggFunc):
    +3528    arg_types = {"this": True, "expressions": False}
    +3529    is_var_len_args = True
     
    @@ -35925,8 +36161,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3518class Month(Func):
    -3519    pass
    +            
    3532class Month(Func):
    +3533    pass
     
    @@ -36000,8 +36236,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3522class Nvl2(Func):
    -3523    arg_types = {"this": True, "true": True, "false": False}
    +            
    3536class Nvl2(Func):
    +3537    arg_types = {"this": True, "true": True, "false": False}
     
    @@ -36075,8 +36311,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3526class Posexplode(Func):
    -3527    pass
    +            
    3540class Posexplode(Func):
    +3541    pass
     
    @@ -36150,8 +36386,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3530class Pow(Binary, Func):
    -3531    _sql_names = ["POWER", "POW"]
    +            
    3544class Pow(Binary, Func):
    +3545    _sql_names = ["POWER", "POW"]
     
    @@ -36225,8 +36461,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3534class PercentileCont(AggFunc):
    -3535    pass
    +            
    3548class PercentileCont(AggFunc):
    +3549    pass
     
    @@ -36300,8 +36536,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3538class PercentileDisc(AggFunc):
    -3539    pass
    +            
    3552class PercentileDisc(AggFunc):
    +3553    pass
     
    @@ -36375,8 +36611,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3542class Quantile(AggFunc):
    -3543    arg_types = {"this": True, "quantile": True}
    +            
    3556class Quantile(AggFunc):
    +3557    arg_types = {"this": True, "quantile": True}
     
    @@ -36450,8 +36686,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3548class Quantiles(AggFunc):
    -3549    arg_types = {"parameters": True, "expressions": True}
    +            
    3562class Quantiles(AggFunc):
    +3563    arg_types = {"parameters": True, "expressions": True}
     
    @@ -36525,8 +36761,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3552class QuantileIf(AggFunc):
    -3553    arg_types = {"parameters": True, "expressions": True}
    +            
    3566class QuantileIf(AggFunc):
    +3567    arg_types = {"parameters": True, "expressions": True}
     
    @@ -36600,8 +36836,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3556class ApproxQuantile(Quantile):
    -3557    arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False}
    +            
    3570class ApproxQuantile(Quantile):
    +3571    arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False}
     
    @@ -36675,8 +36911,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3560class RangeN(Func):
    -3561    arg_types = {"this": True, "expressions": True, "each": False}
    +            
    3574class RangeN(Func):
    +3575    arg_types = {"this": True, "expressions": True, "each": False}
     
    @@ -36750,10 +36986,10 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3564class ReadCSV(Func):
    -3565    _sql_names = ["READ_CSV"]
    -3566    is_var_len_args = True
    -3567    arg_types = {"this": True, "expressions": False}
    +            
    3578class ReadCSV(Func):
    +3579    _sql_names = ["READ_CSV"]
    +3580    is_var_len_args = True
    +3581    arg_types = {"this": True, "expressions": False}
     
    @@ -36827,8 +37063,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3570class Reduce(Func):
    -3571    arg_types = {"this": True, "initial": True, "merge": True, "finish": False}
    +            
    3584class Reduce(Func):
    +3585    arg_types = {"this": True, "initial": True, "merge": True, "finish": False}
     
    @@ -36902,14 +37138,14 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3574class RegexpExtract(Func):
    -3575    arg_types = {
    -3576        "this": True,
    -3577        "expression": True,
    -3578        "position": False,
    -3579        "occurrence": False,
    -3580        "group": False,
    -3581    }
    +            
    3588class RegexpExtract(Func):
    +3589    arg_types = {
    +3590        "this": True,
    +3591        "expression": True,
    +3592        "position": False,
    +3593        "occurrence": False,
    +3594        "group": False,
    +3595    }
     
    @@ -36983,8 +37219,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3584class RegexpLike(Func):
    -3585    arg_types = {"this": True, "expression": True, "flag": False}
    +            
    3598class RegexpLike(Func):
    +3599    arg_types = {"this": True, "expression": True, "flag": False}
     
    @@ -37058,8 +37294,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3588class RegexpILike(Func):
    -3589    arg_types = {"this": True, "expression": True, "flag": False}
    +            
    3602class RegexpILike(Func):
    +3603    arg_types = {"this": True, "expression": True, "flag": False}
     
    @@ -37133,8 +37369,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3592class RegexpSplit(Func):
    -3593    arg_types = {"this": True, "expression": True}
    +            
    3606class RegexpSplit(Func):
    +3607    arg_types = {"this": True, "expression": True}
     
    @@ -37208,8 +37444,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3596class Repeat(Func):
    -3597    arg_types = {"this": True, "times": True}
    +            
    3610class Repeat(Func):
    +3611    arg_types = {"this": True, "times": True}
     
    @@ -37283,8 +37519,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3600class Round(Func):
    -3601    arg_types = {"this": True, "decimals": False}
    +            
    3614class Round(Func):
    +3615    arg_types = {"this": True, "decimals": False}
     
    @@ -37358,8 +37594,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3604class RowNumber(Func):
    -3605    arg_types: t.Dict[str, t.Any] = {}
    +            
    3618class RowNumber(Func):
    +3619    arg_types: t.Dict[str, t.Any] = {}
     
    @@ -37433,8 +37669,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3608class SafeDivide(Func):
    -3609    arg_types = {"this": True, "expression": True}
    +            
    3622class SafeDivide(Func):
    +3623    arg_types = {"this": True, "expression": True}
     
    @@ -37508,8 +37744,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3612class SetAgg(AggFunc):
    -3613    pass
    +            
    3626class SetAgg(AggFunc):
    +3627    pass
     
    @@ -37583,8 +37819,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3616class SortArray(Func):
    -3617    arg_types = {"this": True, "asc": False}
    +            
    3630class SortArray(Func):
    +3631    arg_types = {"this": True, "asc": False}
     
    @@ -37658,8 +37894,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3620class Split(Func):
    -3621    arg_types = {"this": True, "expression": True, "limit": False}
    +            
    3634class Split(Func):
    +3635    arg_types = {"this": True, "expression": True, "limit": False}
     
    @@ -37733,8 +37969,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3626class Substring(Func):
    -3627    arg_types = {"this": True, "start": False, "length": False}
    +            
    3640class Substring(Func):
    +3641    arg_types = {"this": True, "start": False, "length": False}
     
    @@ -37808,13 +38044,13 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3630class StrPosition(Func):
    -3631    arg_types = {
    -3632        "this": True,
    -3633        "substr": True,
    -3634        "position": False,
    -3635        "instance": False,
    -3636    }
    +            
    3644class StrPosition(Func):
    +3645    arg_types = {
    +3646        "this": True,
    +3647        "substr": True,
    +3648        "position": False,
    +3649        "instance": False,
    +3650    }
     
    @@ -37888,8 +38124,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3639class StrToDate(Func):
    -3640    arg_types = {"this": True, "format": True}
    +            
    3653class StrToDate(Func):
    +3654    arg_types = {"this": True, "format": True}
     
    @@ -37963,8 +38199,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3643class StrToTime(Func):
    -3644    arg_types = {"this": True, "format": True}
    +            
    3657class StrToTime(Func):
    +3658    arg_types = {"this": True, "format": True}
     
    @@ -38038,8 +38274,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3649class StrToUnix(Func):
    -3650    arg_types = {"this": False, "format": False}
    +            
    3663class StrToUnix(Func):
    +3664    arg_types = {"this": False, "format": False}
     
    @@ -38113,8 +38349,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3653class NumberToStr(Func):
    -3654    arg_types = {"this": True, "format": True}
    +            
    3667class NumberToStr(Func):
    +3668    arg_types = {"this": True, "format": True}
     
    @@ -38188,9 +38424,9 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3657class Struct(Func):
    -3658    arg_types = {"expressions": True}
    -3659    is_var_len_args = True
    +            
    3671class Struct(Func):
    +3672    arg_types = {"expressions": True}
    +3673    is_var_len_args = True
     
    @@ -38264,8 +38500,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3662class StructExtract(Func):
    -3663    arg_types = {"this": True, "expression": True}
    +            
    3676class StructExtract(Func):
    +3677    arg_types = {"this": True, "expression": True}
     
    @@ -38339,8 +38575,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3666class Sum(AggFunc):
    -3667    pass
    +            
    3680class Sum(AggFunc):
    +3681    pass
     
    @@ -38414,8 +38650,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3670class Sqrt(Func):
    -3671    pass
    +            
    3684class Sqrt(Func):
    +3685    pass
     
    @@ -38489,8 +38725,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3674class Stddev(AggFunc):
    -3675    pass
    +            
    3688class Stddev(AggFunc):
    +3689    pass
     
    @@ -38564,8 +38800,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3678class StddevPop(AggFunc):
    -3679    pass
    +            
    3692class StddevPop(AggFunc):
    +3693    pass
     
    @@ -38639,8 +38875,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3682class StddevSamp(AggFunc):
    -3683    pass
    +            
    3696class StddevSamp(AggFunc):
    +3697    pass
     
    @@ -38714,8 +38950,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3686class TimeToStr(Func):
    -3687    arg_types = {"this": True, "format": True}
    +            
    3700class TimeToStr(Func):
    +3701    arg_types = {"this": True, "format": True}
     
    @@ -38789,8 +39025,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3690class TimeToTimeStr(Func):
    -3691    pass
    +            
    3704class TimeToTimeStr(Func):
    +3705    pass
     
    @@ -38864,8 +39100,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3694class TimeToUnix(Func):
    -3695    pass
    +            
    3708class TimeToUnix(Func):
    +3709    pass
     
    @@ -38939,8 +39175,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3698class TimeStrToDate(Func):
    -3699    pass
    +            
    3712class TimeStrToDate(Func):
    +3713    pass
     
    @@ -39014,8 +39250,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3702class TimeStrToTime(Func):
    -3703    pass
    +            
    3716class TimeStrToTime(Func):
    +3717    pass
     
    @@ -39089,8 +39325,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3706class TimeStrToUnix(Func):
    -3707    pass
    +            
    3720class TimeStrToUnix(Func):
    +3721    pass
     
    @@ -39164,13 +39400,13 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3710class Trim(Func):
    -3711    arg_types = {
    -3712        "this": True,
    -3713        "expression": False,
    -3714        "position": False,
    -3715        "collation": False,
    -3716    }
    +            
    3724class Trim(Func):
    +3725    arg_types = {
    +3726        "this": True,
    +3727        "expression": False,
    +3728        "position": False,
    +3729        "collation": False,
    +3730    }
     
    @@ -39244,8 +39480,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3719class TsOrDsAdd(Func, TimeUnit):
    -3720    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3733class TsOrDsAdd(Func, TimeUnit):
    +3734    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -39322,8 +39558,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3723class TsOrDsToDateStr(Func):
    -3724    pass
    +            
    3737class TsOrDsToDateStr(Func):
    +3738    pass
     
    @@ -39397,8 +39633,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3727class TsOrDsToDate(Func):
    -3728    arg_types = {"this": True, "format": False}
    +            
    3741class TsOrDsToDate(Func):
    +3742    arg_types = {"this": True, "format": False}
     
    @@ -39472,8 +39708,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3731class TsOrDiToDi(Func):
    -3732    pass
    +            
    3745class TsOrDiToDi(Func):
    +3746    pass
     
    @@ -39547,8 +39783,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3735class Unhex(Func):
    -3736    pass
    +            
    3749class Unhex(Func):
    +3750    pass
     
    @@ -39622,8 +39858,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3739class UnixToStr(Func):
    -3740    arg_types = {"this": True, "format": False}
    +            
    3753class UnixToStr(Func):
    +3754    arg_types = {"this": True, "format": False}
     
    @@ -39697,12 +39933,12 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    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")
    +            
    3759class UnixToTime(Func):
    +3760    arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False}
    +3761
    +3762    SECONDS = Literal.string("seconds")
    +3763    MILLIS = Literal.string("millis")
    +3764    MICROS = Literal.string("micros")
     
    @@ -39776,8 +40012,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3753class UnixToTimeStr(Func):
    -3754    pass
    +            
    3767class UnixToTimeStr(Func):
    +3768    pass
     
    @@ -39851,8 +40087,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3757class Upper(Func):
    -3758    _sql_names = ["UPPER", "UCASE"]
    +            
    3771class Upper(Func):
    +3772    _sql_names = ["UPPER", "UCASE"]
     
    @@ -39926,8 +40162,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3761class Variance(AggFunc):
    -3762    _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"]
    +            
    3775class Variance(AggFunc):
    +3776    _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"]
     
    @@ -40001,8 +40237,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3765class VariancePop(AggFunc):
    -3766    _sql_names = ["VARIANCE_POP", "VAR_POP"]
    +            
    3779class VariancePop(AggFunc):
    +3780    _sql_names = ["VARIANCE_POP", "VAR_POP"]
     
    @@ -40076,8 +40312,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3769class Week(Func):
    -3770    arg_types = {"this": True, "mode": False}
    +            
    3783class Week(Func):
    +3784    arg_types = {"this": True, "mode": False}
     
    @@ -40151,8 +40387,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3773class XMLTable(Func):
    -3774    arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False}
    +            
    3787class XMLTable(Func):
    +3788    arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False}
     
    @@ -40226,8 +40462,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3777class Year(Func):
    -3778    pass
    +            
    3791class Year(Func):
    +3792    pass
     
    @@ -40301,8 +40537,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3781class Use(Expression):
    -3782    arg_types = {"this": True, "kind": False}
    +            
    3795class Use(Expression):
    +3796    arg_types = {"this": True, "kind": False}
     
    @@ -40363,8 +40599,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3785class Merge(Expression):
    -3786    arg_types = {"this": True, "using": True, "on": True, "expressions": True}
    +            
    3799class Merge(Expression):
    +3800    arg_types = {"this": True, "using": True, "on": True, "expressions": True}
     
    @@ -40425,8 +40661,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3789class When(Func):
    -3790    arg_types = {"matched": True, "source": False, "condition": False, "then": True}
    +            
    3803class When(Func):
    +3804    arg_types = {"matched": True, "source": False, "condition": False, "then": True}
     
    @@ -40500,48 +40736,48 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    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)
    +            
    3832def maybe_parse(
    +3833    sql_or_expression: str | Expression,
    +3834    *,
    +3835    into: t.Optional[IntoType] = None,
    +3836    dialect: DialectType = None,
    +3837    prefix: t.Optional[str] = None,
    +3838    copy: bool = False,
    +3839    **opts,
    +3840) -> Expression:
    +3841    """Gracefully handle a possible string or expression.
    +3842
    +3843    Example:
    +3844        >>> maybe_parse("1")
    +3845        (LITERAL this: 1, is_string: False)
    +3846        >>> maybe_parse(to_identifier("x"))
    +3847        (IDENTIFIER this: x, quoted: False)
    +3848
    +3849    Args:
    +3850        sql_or_expression: the SQL code string or an expression
    +3851        into: the SQLGlot Expression to parse into
    +3852        dialect: the dialect used to parse the input expressions (in the case that an
    +3853            input expression is a SQL string).
    +3854        prefix: a string to prefix the sql with before it gets parsed
    +3855            (automatically includes a space)
    +3856        copy: whether or not to copy the expression.
    +3857        **opts: other options to use to parse the input expressions (again, in the case
    +3858            that an input expression is a SQL string).
    +3859
    +3860    Returns:
    +3861        Expression: the parsed or given expression.
    +3862    """
    +3863    if isinstance(sql_or_expression, Expression):
    +3864        if copy:
    +3865            return sql_or_expression.copy()
    +3866        return sql_or_expression
    +3867
    +3868    import sqlglot
    +3869
    +3870    sql = str(sql_or_expression)
    +3871    if prefix:
    +3872        sql = f"{prefix} {sql}"
    +3873    return sqlglot.parse_one(sql, read=dialect, into=into, **opts)
     
    @@ -40593,29 +40829,29 @@ that an input expression is a SQL string).
    -
    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)
    +            
    4019def union(left, right, distinct=True, dialect=None, **opts):
    +4020    """
    +4021    Initializes a syntax tree from one UNION expression.
    +4022
    +4023    Example:
    +4024        >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4025        'SELECT * FROM foo UNION SELECT * FROM bla'
     4026
    -4027    return Union(this=left, expression=right, distinct=distinct)
    +4027    Args:
    +4028        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4029            If an `Expression` instance is passed, it will be used as-is.
    +4030        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4031            If an `Expression` instance is passed, it will be used as-is.
    +4032        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4033        dialect (str): the dialect used to parse the input expression.
    +4034        opts (kwargs): other options to use to parse the input expressions.
    +4035    Returns:
    +4036        Union: the syntax tree for the UNION expression.
    +4037    """
    +4038    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4039    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4040
    +4041    return Union(this=left, expression=right, distinct=distinct)
     
    @@ -40663,29 +40899,29 @@ If an Expression instance is passed, it w
    -
    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)
    +            
    4044def intersect(left, right, distinct=True, dialect=None, **opts):
    +4045    """
    +4046    Initializes a syntax tree from one INTERSECT expression.
    +4047
    +4048    Example:
    +4049        >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4050        'SELECT * FROM foo INTERSECT SELECT * FROM bla'
     4051
    -4052    return Intersect(this=left, expression=right, distinct=distinct)
    +4052    Args:
    +4053        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4054            If an `Expression` instance is passed, it will be used as-is.
    +4055        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4056            If an `Expression` instance is passed, it will be used as-is.
    +4057        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4058        dialect (str): the dialect used to parse the input expression.
    +4059        opts (kwargs): other options to use to parse the input expressions.
    +4060    Returns:
    +4061        Intersect: the syntax tree for the INTERSECT expression.
    +4062    """
    +4063    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4064    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4065
    +4066    return Intersect(this=left, expression=right, distinct=distinct)
     
    @@ -40733,29 +40969,29 @@ If an Expression instance is passed, it w
    -
    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)
    +            
    4069def except_(left, right, distinct=True, dialect=None, **opts):
    +4070    """
    +4071    Initializes a syntax tree from one EXCEPT expression.
    +4072
    +4073    Example:
    +4074        >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4075        'SELECT * FROM foo EXCEPT SELECT * FROM bla'
     4076
    -4077    return Except(this=left, expression=right, distinct=distinct)
    +4077    Args:
    +4078        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4079            If an `Expression` instance is passed, it will be used as-is.
    +4080        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4081            If an `Expression` instance is passed, it will be used as-is.
    +4082        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4083        dialect (str): the dialect used to parse the input expression.
    +4084        opts (kwargs): other options to use to parse the input expressions.
    +4085    Returns:
    +4086        Except: the syntax tree for the EXCEPT statement.
    +4087    """
    +4088    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4089    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4090
    +4091    return Except(this=left, expression=right, distinct=distinct)
     
    @@ -40803,26 +41039,26 @@ If an Expression instance is passed, it w
    -
    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)
    +            
    4094def select(*expressions: str | Expression, dialect: DialectType = None, **opts) -> Select:
    +4095    """
    +4096    Initializes a syntax tree from one or multiple SELECT expressions.
    +4097
    +4098    Example:
    +4099        >>> select("col1", "col2").from_("tbl").sql()
    +4100        'SELECT col1, col2 FROM tbl'
    +4101
    +4102    Args:
    +4103        *expressions: the SQL code string to parse as the expressions of a
    +4104            SELECT statement. If an Expression instance is passed, this is used as-is.
    +4105        dialect: the dialect used to parse the input expressions (in the case that an
    +4106            input expression is a SQL string).
    +4107        **opts: other options to use to parse the input expressions (again, in the case
    +4108            that an input expression is a SQL string).
    +4109
    +4110    Returns:
    +4111        Select: the syntax tree for the SELECT statement.
    +4112    """
    +4113    return Select().select(*expressions, dialect=dialect, **opts)
     
    @@ -40869,26 +41105,26 @@ that an input expression is a SQL string).
    -
    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)
    +            
    4116def from_(*expressions, dialect=None, **opts) -> Select:
    +4117    """
    +4118    Initializes a syntax tree from a FROM expression.
    +4119
    +4120    Example:
    +4121        >>> from_("tbl").select("col1", "col2").sql()
    +4122        'SELECT col1, col2 FROM tbl'
    +4123
    +4124    Args:
    +4125        *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a
    +4126            SELECT statement. If an Expression instance is passed, this is used as-is.
    +4127        dialect (str): the dialect used to parse the input expression (in the case that the
    +4128            input expression is a SQL string).
    +4129        **opts: other options to use to parse the input expressions (again, in the case
    +4130            that the input expression is a SQL string).
    +4131
    +4132    Returns:
    +4133        Select: the syntax tree for the SELECT statement.
    +4134    """
    +4135    return Select().from_(*expressions, dialect=dialect, **opts)
     
    @@ -40935,46 +41171,46 @@ that the input expression is a SQL string).
    -
    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
    +            
    4138def update(table, properties, where=None, from_=None, dialect=None, **opts) -> Update:
    +4139    """
    +4140    Creates an update statement.
    +4141
    +4142    Example:
    +4143        >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()
    +4144        "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"
    +4145
    +4146    Args:
    +4147        *properties (Dict[str, Any]): dictionary of properties to set which are
    +4148            auto converted to sql objects eg None -> NULL
    +4149        where (str): sql conditional parsed into a WHERE statement
    +4150        from_ (str): sql statement parsed into a FROM statement
    +4151        dialect (str): the dialect used to parse the input expressions.
    +4152        **opts: other options to use to parse the input expressions.
    +4153
    +4154    Returns:
    +4155        Update: the syntax tree for the UPDATE statement.
    +4156    """
    +4157    update = Update(this=maybe_parse(table, into=Table, dialect=dialect))
    +4158    update.set(
    +4159        "expressions",
    +4160        [
    +4161            EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v))
    +4162            for k, v in properties.items()
    +4163        ],
    +4164    )
    +4165    if from_:
    +4166        update.set(
    +4167            "from",
    +4168            maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts),
    +4169        )
    +4170    if isinstance(where, Condition):
    +4171        where = Where(this=where)
    +4172    if where:
    +4173        update.set(
    +4174            "where",
    +4175            maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    +4176        )
    +4177    return update
     
    @@ -41021,28 +41257,28 @@ auto converted to sql objects eg None -> NULL
    -
    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    )
    +            
    4180def delete(table, where=None, dialect=None, **opts) -> Delete:
    +4181    """
    +4182    Builds a delete statement.
    +4183
    +4184    Example:
    +4185        >>> delete("my_table", where="id > 1").sql()
    +4186        'DELETE FROM my_table WHERE id > 1'
    +4187
    +4188    Args:
    +4189        where (str|Condition): sql conditional parsed into a WHERE statement
    +4190        dialect (str): the dialect used to parse the input expressions.
    +4191        **opts: other options to use to parse the input expressions.
    +4192
    +4193    Returns:
    +4194        Delete: the syntax tree for the DELETE statement.
    +4195    """
    +4196    return Delete(
    +4197        this=maybe_parse(table, into=Table, dialect=dialect, **opts),
    +4198        where=Where(this=where)
    +4199        if isinstance(where, Condition)
    +4200        else maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    +4201    )
     
    @@ -41086,37 +41322,37 @@ auto converted to sql objects eg None -> NULL
    -
    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).
    +            
    4204def condition(expression, dialect=None, **opts) -> Condition:
    +4205    """
    +4206    Initialize a logical condition expression.
    +4207
    +4208    Example:
    +4209        >>> condition("x=1").sql()
    +4210        'x = 1'
     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    )
    +4212        This is helpful for composing larger logical syntax trees:
    +4213        >>> where = condition("x=1")
    +4214        >>> where = where.and_("y=1")
    +4215        >>> Select().from_("tbl").select("*").where(where).sql()
    +4216        'SELECT * FROM tbl WHERE x = 1 AND y = 1'
    +4217
    +4218    Args:
    +4219        *expression (str | Expression): the SQL code string to parse.
    +4220            If an Expression instance is passed, this is used as-is.
    +4221        dialect (str): the dialect used to parse the input expression (in the case that the
    +4222            input expression is a SQL string).
    +4223        **opts: other options to use to parse the input expressions (again, in the case
    +4224            that the input expression is a SQL string).
    +4225
    +4226    Returns:
    +4227        Condition: the expression
    +4228    """
    +4229    return maybe_parse(  # type: ignore
    +4230        expression,
    +4231        into=Condition,
    +4232        dialect=dialect,
    +4233        **opts,
    +4234    )
     
    @@ -41173,24 +41409,24 @@ that the input expression is a SQL string).
    -
    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)
    +            
    4237def and_(*expressions, dialect=None, **opts) -> And:
    +4238    """
    +4239    Combine multiple conditions with an AND logical operator.
    +4240
    +4241    Example:
    +4242        >>> and_("x=1", and_("y=1", "z=1")).sql()
    +4243        'x = 1 AND (y = 1 AND z = 1)'
    +4244
    +4245    Args:
    +4246        *expressions (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        And: the new condition
    +4253    """
    +4254    return _combine(expressions, And, dialect, **opts)
     
    @@ -41235,24 +41471,24 @@ If an Expression instance is passed, this is used as-is.
    -
    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)
    +            
    4257def or_(*expressions, dialect=None, **opts) -> Or:
    +4258    """
    +4259    Combine multiple conditions with an OR logical operator.
    +4260
    +4261    Example:
    +4262        >>> or_("x=1", or_("y=1", "z=1")).sql()
    +4263        'x = 1 OR (y = 1 OR z = 1)'
    +4264
    +4265    Args:
    +4266        *expressions (str | Expression): the SQL code strings to parse.
    +4267            If an Expression instance is passed, this is used as-is.
    +4268        dialect (str): the dialect used to parse the input expression.
    +4269        **opts: other options to use to parse the input expressions.
    +4270
    +4271    Returns:
    +4272        Or: the new condition
    +4273    """
    +4274    return _combine(expressions, Or, dialect, **opts)
     
    @@ -41297,29 +41533,29 @@ If an Expression instance is passed, this is used as-is.
    -
    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))
    +            
    4277def not_(expression, dialect=None, **opts) -> Not:
    +4278    """
    +4279    Wrap a condition with a NOT operator.
    +4280
    +4281    Example:
    +4282        >>> not_("this_suit='black'").sql()
    +4283        "NOT this_suit = 'black'"
    +4284
    +4285    Args:
    +4286        expression (str | Expression): the SQL code strings to parse.
    +4287            If an Expression instance is passed, this is used as-is.
    +4288        dialect (str): the dialect used to parse the input expression.
    +4289        **opts: other options to use to parse the input expressions.
    +4290
    +4291    Returns:
    +4292        Not: the new condition
    +4293    """
    +4294    this = condition(
    +4295        expression,
    +4296        dialect=dialect,
    +4297        **opts,
    +4298    )
    +4299    return Not(this=_wrap_operator(this))
     
    @@ -41364,8 +41600,8 @@ If an Expression instance is passed, this is used as-is.
    -
    4288def paren(expression) -> Paren:
    -4289    return Paren(this=expression)
    +            
    4302def paren(expression) -> Paren:
    +4303    return Paren(this=expression)
     
    @@ -41383,30 +41619,30 @@ If an Expression instance is passed, this is used as-is.
    -
    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
    +            
    4319def to_identifier(name, quoted=None):
    +4320    """Builds an identifier.
    +4321
    +4322    Args:
    +4323        name: The name to turn into an identifier.
    +4324        quoted: Whether or not force quote the identifier.
    +4325
    +4326    Returns:
    +4327        The identifier ast node.
    +4328    """
    +4329
    +4330    if name is None:
    +4331        return None
    +4332
    +4333    if isinstance(name, Identifier):
    +4334        identifier = name
    +4335    elif isinstance(name, str):
    +4336        identifier = Identifier(
    +4337            this=name,
    +4338            quoted=not re.match(SAFE_IDENTIFIER_RE, name) if quoted is None else quoted,
    +4339        )
    +4340    else:
    +4341        raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}")
    +4342    return identifier
     
    @@ -41439,23 +41675,23 @@ If an Expression instance is passed, this is used as-is.
    -
    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    )
    +            
    4348def to_interval(interval: str | Literal) -> Interval:
    +4349    """Builds an interval expression from a string like '1 day' or '5 months'."""
    +4350    if isinstance(interval, Literal):
    +4351        if not interval.is_string:
    +4352            raise ValueError("Invalid interval string.")
    +4353
    +4354        interval = interval.this
    +4355
    +4356    interval_parts = INTERVAL_STRING_RE.match(interval)  # type: ignore
    +4357
    +4358    if not interval_parts:
    +4359        raise ValueError("Invalid interval string.")
    +4360
    +4361    return Interval(
    +4362        this=Literal.string(interval_parts.group(1)),
    +4363        unit=Var(this=interval_parts.group(2)),
    +4364    )
     
    @@ -41475,24 +41711,24 @@ If an Expression instance is passed, this is used as-is.
    -
    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)
    +            
    4377def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]:
    +4378    """
    +4379    Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional.
    +4380    If a table is passed in then that table is returned.
    +4381
    +4382    Args:
    +4383        sql_path: a `[catalog].[schema].[table]` string.
    +4384
    +4385    Returns:
    +4386        A table expression.
    +4387    """
    +4388    if sql_path is None or isinstance(sql_path, Table):
    +4389        return sql_path
    +4390    if not isinstance(sql_path, str):
    +4391        raise ValueError(f"Invalid type provided for a table: {type(sql_path)}")
    +4392
    +4393    catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3))
    +4394    return Table(this=table_name, db=db, catalog=catalog, **kwargs)
     
    @@ -41525,23 +41761,23 @@ If a table is passed in then that table is returned.

    -
    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)
    +            
    4397def to_column(sql_path: str | Column, **kwargs) -> Column:
    +4398    """
    +4399    Create a column from a `[table].[column]` sql path. Schema is optional.
    +4400
    +4401    If a column is passed in then that column is returned.
    +4402
    +4403    Args:
    +4404        sql_path: `[table].[column]` string
    +4405    Returns:
    +4406        Table: A column expression
    +4407    """
    +4408    if sql_path is None or isinstance(sql_path, Column):
    +4409        return sql_path
    +4410    if not isinstance(sql_path, str):
    +4411        raise ValueError(f"Invalid type provided for column: {type(sql_path)}")
    +4412    table_name, column_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 2))
    +4413    return Column(this=column_name, table=table_name, **kwargs)
     
    @@ -41575,60 +41811,60 @@ If a table is passed in then that table is returned.

    -
    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    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))
    +            
    4416def alias_(
    +4417    expression: str | Expression,
    +4418    alias: str | Identifier,
    +4419    table: bool | t.Sequence[str | Identifier] = False,
    +4420    quoted: t.Optional[bool] = None,
    +4421    dialect: DialectType = None,
    +4422    **opts,
    +4423):
    +4424    """Create an Alias expression.
    +4425
    +4426    Example:
    +4427        >>> alias_('foo', 'bar').sql()
    +4428        'foo AS bar'
    +4429
    +4430        >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()
    +4431        '(SELECT 1, 2) AS bar(a, b)'
    +4432
    +4433    Args:
    +4434        expression: the SQL code strings to parse.
    +4435            If an Expression instance is passed, this is used as-is.
    +4436        alias: the alias name to use. If the name has
    +4437            special characters it is quoted.
    +4438        table: Whether or not to create a table alias, can also be a list of columns.
    +4439        quoted: whether or not to quote the alias
    +4440        dialect: the dialect used to parse the input expression.
    +4441        **opts: other options to use to parse the input expressions.
     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)
    +4443    Returns:
    +4444        Alias: the aliased expression
    +4445    """
    +4446    exp = maybe_parse(expression, dialect=dialect, **opts)
    +4447    alias = to_identifier(alias, quoted=quoted)
    +4448
    +4449    if table:
    +4450        table_alias = TableAlias(this=alias)
    +4451        exp.set("alias", table_alias)
    +4452
    +4453        if not isinstance(table, bool):
    +4454            for column in table:
    +4455                table_alias.append("columns", to_identifier(column, quoted=quoted))
    +4456
    +4457        return exp
    +4458
    +4459    # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in
    +4460    # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node
    +4461    # for the complete Window expression.
    +4462    #
    +4463    # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls
    +4464
    +4465    if "alias" in exp.arg_types and not isinstance(exp, Window):
    +4466        exp = exp.copy()
    +4467        exp.set("alias", alias)
    +4468        return exp
    +4469    return Alias(this=exp, alias=alias)
     
    @@ -41683,27 +41919,27 @@ special characters it is quoted.
    -
    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)
    +            
    4472def subquery(expression, alias=None, dialect=None, **opts):
    +4473    """
    +4474    Build a subquery expression.
    +4475
    +4476    Example:
    +4477        >>> subquery('select x from tbl', 'bar').select('x').sql()
    +4478        'SELECT x FROM (SELECT x FROM tbl) AS bar'
    +4479
    +4480    Args:
    +4481        expression (str | Expression): the SQL code strings to parse.
    +4482            If an Expression instance is passed, this is used as-is.
    +4483        alias (str | Expression): the alias name to use.
    +4484        dialect (str): the dialect used to parse the input expression.
    +4485        **opts: other options to use to parse the input expressions.
    +4486
    +4487    Returns:
    +4488        Select: a new select with the subquery expression included
    +4489    """
    +4490
    +4491    expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias)
    +4492    return Select().from_(expression, dialect=dialect, **opts)
     
    @@ -41749,28 +41985,28 @@ If an Expression instance is passed, this is used as-is.
    -
    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    )
    +            
    4495def column(
    +4496    col: str | Identifier,
    +4497    table: t.Optional[str | Identifier] = None,
    +4498    schema: t.Optional[str | Identifier] = None,
    +4499    quoted: t.Optional[bool] = None,
    +4500) -> Column:
    +4501    """
    +4502    Build a Column.
    +4503
    +4504    Args:
    +4505        col: column name
    +4506        table: table name
    +4507        schema: schema name
    +4508        quoted: whether or not to force quote each part
    +4509    Returns:
    +4510        Column: column instance
    +4511    """
    +4512    return Column(
    +4513        this=to_identifier(col, quoted=quoted),
    +4514        table=to_identifier(table, quoted=quoted),
    +4515        schema=to_identifier(schema, quoted=quoted),
    +4516    )
     
    @@ -41805,22 +42041,22 @@ If an Expression instance is passed, this is used as-is.
    -
    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))
    +            
    4519def cast(expression: str | Expression, to: str | DataType | DataType.Type, **opts) -> Cast:
    +4520    """Cast an expression to a data type.
    +4521
    +4522    Example:
    +4523        >>> cast('x + 1', 'int').sql()
    +4524        'CAST(x + 1 AS INT)'
    +4525
    +4526    Args:
    +4527        expression: The expression to cast.
    +4528        to: The datatype to cast to.
    +4529
    +4530    Returns:
    +4531        A cast node.
    +4532    """
    +4533    expression = maybe_parse(expression, **opts)
    +4534    return Cast(this=expression, to=DataType.build(to, **opts))
     
    @@ -41863,23 +42099,23 @@ If an Expression instance is passed, this is used as-is.
    -
    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    )
    +            
    4537def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table:
    +4538    """Build a Table.
    +4539
    +4540    Args:
    +4541        table (str | Expression): column name
    +4542        db (str | Expression): db name
    +4543        catalog (str | Expression): catalog name
    +4544
    +4545    Returns:
    +4546        Table: table instance
    +4547    """
    +4548    return Table(
    +4549        this=to_identifier(table, quoted=quoted),
    +4550        db=to_identifier(db, quoted=quoted),
    +4551        catalog=to_identifier(catalog, quoted=quoted),
    +4552        alias=TableAlias(this=to_identifier(alias)) if alias else None,
    +4553    )
     
    @@ -41913,46 +42149,46 @@ If an Expression instance is passed, this is used as-is.
    -
    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    )
    +            
    4556def values(
    +4557    values: t.Iterable[t.Tuple[t.Any, ...]],
    +4558    alias: t.Optional[str] = None,
    +4559    columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None,
    +4560) -> Values:
    +4561    """Build VALUES statement.
    +4562
    +4563    Example:
    +4564        >>> values([(1, '2')]).sql()
    +4565        "VALUES (1, '2')"
    +4566
    +4567    Args:
    +4568        values: values statements that will be converted to SQL
    +4569        alias: optional alias
    +4570        columns: Optional list of ordered column names or ordered dictionary of column names to types.
    +4571         If either are provided then an alias is also required.
    +4572         If a dictionary is provided then the first column of the values will be casted to the expected type
    +4573         in order to help with type inference.
    +4574
    +4575    Returns:
    +4576        Values: the Values expression object
    +4577    """
    +4578    if columns and not alias:
    +4579        raise ValueError("Alias is required when providing columns")
    +4580    table_alias = (
    +4581        TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns])
    +4582        if columns
    +4583        else TableAlias(this=to_identifier(alias) if alias else None)
    +4584    )
    +4585    expressions = [convert(tup) for tup in values]
    +4586    if columns and isinstance(columns, dict):
    +4587        types = list(columns.values())
    +4588        expressions[0].set(
    +4589            "expressions",
    +4590            [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)],
    +4591        )
    +4592    return Values(
    +4593        expressions=expressions,
    +4594        alias=table_alias,
    +4595    )
     
    @@ -41999,28 +42235,28 @@ in order to help with type inference.
    -
    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)
    +            
    4598def var(name: t.Optional[str | Expression]) -> Var:
    +4599    """Build a SQL variable.
    +4600
    +4601    Example:
    +4602        >>> repr(var('x'))
    +4603        '(VAR this: x)'
    +4604
    +4605        >>> repr(var(column('x', table='y')))
    +4606        '(VAR this: x)'
    +4607
    +4608    Args:
    +4609        name: The name of the var or an expression who's name will become the var.
    +4610
    +4611    Returns:
    +4612        The new variable node.
    +4613    """
    +4614    if not name:
    +4615        raise ValueError(f"Cannot convert empty name into var.")
    +4616
    +4617    if isinstance(name, Expression):
    +4618        name = name.name
    +4619    return Var(this=name)
     
    @@ -42068,24 +42304,24 @@ in order to help with type inference.
    -
    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    )
    +            
    4622def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable:
    +4623    """Build ALTER TABLE... RENAME... expression
    +4624
    +4625    Args:
    +4626        old_name: The old name of the table
    +4627        new_name: The new name of the table
    +4628
    +4629    Returns:
    +4630        Alter table expression
    +4631    """
    +4632    old_table = to_table(old_name)
    +4633    new_table = to_table(new_name)
    +4634    return AlterTable(
    +4635        this=old_table,
    +4636        actions=[
    +4637            RenameTable(this=new_table),
    +4638        ],
    +4639    )
     
    @@ -42118,47 +42354,47 @@ in order to help with type inference.
    -
    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}")
    +            
    4642def convert(value) -> Expression:
    +4643    """Convert a python value into an expression object.
    +4644
    +4645    Raises an error if a conversion is not possible.
    +4646
    +4647    Args:
    +4648        value (Any): a python object
    +4649
    +4650    Returns:
    +4651        Expression: the equivalent expression object
    +4652    """
    +4653    if isinstance(value, Expression):
    +4654        return value
    +4655    if value is None:
    +4656        return NULL
    +4657    if isinstance(value, bool):
    +4658        return Boolean(this=value)
    +4659    if isinstance(value, str):
    +4660        return Literal.string(value)
    +4661    if isinstance(value, float) and math.isnan(value):
    +4662        return NULL
    +4663    if isinstance(value, numbers.Number):
    +4664        return Literal.number(value)
    +4665    if isinstance(value, tuple):
    +4666        return Tuple(expressions=[convert(v) for v in value])
    +4667    if isinstance(value, list):
    +4668        return Array(expressions=[convert(v) for v in value])
    +4669    if isinstance(value, dict):
    +4670        return Map(
    +4671            keys=[convert(k) for k in value],
    +4672            values=[convert(v) for v in value.values()],
    +4673        )
    +4674    if isinstance(value, datetime.datetime):
    +4675        datetime_literal = Literal.string(
    +4676            (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat()
    +4677        )
    +4678        return TimeStrToTime(this=datetime_literal)
    +4679    if isinstance(value, datetime.date):
    +4680        date_literal = Literal.string(value.strftime("%Y-%m-%d"))
    +4681        return DateStrToDate(this=date_literal)
    +4682    raise ValueError(f"Cannot convert {value}")
     
    @@ -42192,26 +42428,26 @@ in order to help with type inference.
    -
    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)
    +            
    4685def replace_children(expression, fun):
    +4686    """
    +4687    Replace children of an expression with the result of a lambda fun(child) -> exp.
    +4688    """
    +4689    for k, v in expression.args.items():
    +4690        is_list_arg = isinstance(v, list)
    +4691
    +4692        child_nodes = v if is_list_arg else [v]
    +4693        new_child_nodes = []
    +4694
    +4695        for cn in child_nodes:
    +4696            if isinstance(cn, Expression):
    +4697                for child_node in ensure_collection(fun(cn)):
    +4698                    new_child_nodes.append(child_node)
    +4699                    child_node.parent = expression
    +4700                    child_node.arg_key = k
    +4701            else:
    +4702                new_child_nodes.append(cn)
    +4703
    +4704        expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0)
     
    @@ -42231,22 +42467,22 @@ in order to help with type inference.
    -
    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)))
    +            
    4707def column_table_names(expression):
    +4708    """
    +4709    Return all table names referenced through columns in an expression.
    +4710
    +4711    Example:
    +4712        >>> import sqlglot
    +4713        >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))
    +4714        ['c', 'a']
    +4715
    +4716    Args:
    +4717        expression (sqlglot.Expression): expression to find table names
    +4718
    +4719    Returns:
    +4720        list: A list of unique names
    +4721    """
    +4722    return list(dict.fromkeys(column.table for column in expression.find_all(Column)))
     
    @@ -42289,35 +42525,35 @@ in order to help with type inference.
    -
    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)
    +            
    4725def table_name(table) -> str:
    +4726    """Get the full name of a table as a string.
     4727
    -4728    if not table:
    -4729        raise ValueError(f"Cannot parse {table}")
    +4728    Args:
    +4729        table (exp.Table | str): table expression node or string.
     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    )
    +4731    Examples:
    +4732        >>> from sqlglot import exp, parse_one
    +4733        >>> table_name(parse_one("select * from a.b.c").find(exp.Table))
    +4734        'a.b.c'
    +4735
    +4736    Returns:
    +4737        The table name.
    +4738    """
    +4739
    +4740    table = maybe_parse(table, into=Table)
    +4741
    +4742    if not table:
    +4743        raise ValueError(f"Cannot parse {table}")
    +4744
    +4745    return ".".join(
    +4746        part
    +4747        for part in (
    +4748            table.text("catalog"),
    +4749            table.text("db"),
    +4750            table.name,
    +4751        )
    +4752        if part
    +4753    )
     
    @@ -42360,33 +42596,33 @@ in order to help with type inference.
    -
    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
    +            
    4756def replace_tables(expression, mapping):
    +4757    """Replace all tables in expression according to the mapping.
    +4758
    +4759    Args:
    +4760        expression (sqlglot.Expression): expression node to be transformed and replaced.
    +4761        mapping (Dict[str, str]): mapping of table names.
    +4762
    +4763    Examples:
    +4764        >>> from sqlglot import exp, parse_one
    +4765        >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()
    +4766        'SELECT * FROM c'
     4767
    -4768    return expression.transform(_replace_tables)
    +4768    Returns:
    +4769        The mapped expression.
    +4770    """
    +4771
    +4772    def _replace_tables(node):
    +4773        if isinstance(node, Table):
    +4774            new_name = mapping.get(table_name(node))
    +4775            if new_name:
    +4776                return to_table(
    +4777                    new_name,
    +4778                    **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")},
    +4779                )
    +4780        return node
    +4781
    +4782    return expression.transform(_replace_tables)
     
    @@ -42430,39 +42666,39 @@ in order to help with type inference.
    -
    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)
    +            
    4785def replace_placeholders(expression, *args, **kwargs):
    +4786    """Replace placeholders in an expression.
    +4787
    +4788    Args:
    +4789        expression (sqlglot.Expression): expression node to be transformed and replaced.
    +4790        args: positional names that will substitute unnamed placeholders in the given order.
    +4791        kwargs: keyword arguments that will substitute named placeholders.
    +4792
    +4793    Examples:
    +4794        >>> from sqlglot import exp, parse_one
    +4795        >>> replace_placeholders(
    +4796        ...     parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo"
    +4797        ... ).sql()
    +4798        'SELECT * FROM foo WHERE a = b'
    +4799
    +4800    Returns:
    +4801        The mapped expression.
    +4802    """
    +4803
    +4804    def _replace_placeholders(node, args, **kwargs):
    +4805        if isinstance(node, Placeholder):
    +4806            if node.name:
    +4807                new_name = kwargs.get(node.name)
    +4808                if new_name:
    +4809                    return to_identifier(new_name)
    +4810            else:
    +4811                try:
    +4812                    return to_identifier(next(args))
    +4813                except StopIteration:
    +4814                    pass
    +4815        return node
    +4816
    +4817    return expression.transform(_replace_placeholders, iter(args), **kwargs)
     
    @@ -42509,34 +42745,34 @@ in order to help with type inference.
    -
    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    """
    +            
    4820def expand(expression: Expression, sources: t.Dict[str, Subqueryable], copy=True) -> Expression:
    +4821    """Transforms an expression by expanding all referenced sources into subqueries.
     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
    +4823    Examples:
    +4824        >>> from sqlglot import parse_one
    +4825        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()
    +4826        'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'
    +4827
    +4828    Args:
    +4829        expression: The expression to expand.
    +4830        sources: A dictionary of name to Subqueryables.
    +4831        copy: Whether or not to copy the expression during transformation. Defaults to True.
     4832
    -4833    return expression.transform(_expand, copy=copy)
    +4833    Returns:
    +4834        The transformed expression.
    +4835    """
    +4836
    +4837    def _expand(node: Expression):
    +4838        if isinstance(node, Table):
    +4839            name = table_name(node)
    +4840            source = sources.get(name)
    +4841            if source:
    +4842                subquery = source.subquery(node.alias or name)
    +4843                subquery.comments = [f"source: {name}"]
    +4844                return subquery
    +4845        return node
    +4846
    +4847    return expression.transform(_expand, copy=copy)
     
    @@ -42581,51 +42817,51 @@ in order to help with type inference.
    -
    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)
    +            
    4850def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func:
    +4851    """
    +4852    Returns a Func expression.
    +4853
    +4854    Examples:
    +4855        >>> func("abs", 5).sql()
    +4856        'ABS(5)'
    +4857
    +4858        >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()
    +4859        'CAST(5 AS DOUBLE)'
    +4860
    +4861    Args:
    +4862        name: the name of the function to build.
    +4863        args: the args used to instantiate the function of interest.
    +4864        dialect: the source dialect.
    +4865        kwargs: the kwargs used to instantiate the function of interest.
    +4866
    +4867    Note:
    +4868        The arguments `args` and `kwargs` are mutually exclusive.
    +4869
    +4870    Returns:
    +4871        An instance of the function of interest, or an anonymous function, if `name` doesn't
    +4872        correspond to an existing `sqlglot.expressions.Func` class.
    +4873    """
    +4874    if args and kwargs:
    +4875        raise ValueError("Can't use both args and kwargs to instantiate a function.")
     4876
    -4877    for error_message in function.error_messages(args):
    -4878        raise ValueError(error_message)
    -4879
    -4880    return function
    +4877    from sqlglot.dialects.dialect import Dialect
    +4878
    +4879    converted = [convert(arg) for arg in args]
    +4880    kwargs = {key: convert(value) for key, value in kwargs.items()}
    +4881
    +4882    parser = Dialect.get_or_raise(dialect)().parser()
    +4883    from_args_list = parser.FUNCTIONS.get(name.upper())
    +4884
    +4885    if from_args_list:
    +4886        function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs)  # type: ignore
    +4887    else:
    +4888        kwargs = kwargs or {"expressions": converted}
    +4889        function = Anonymous(this=name, **kwargs)
    +4890
    +4891    for error_message in function.error_messages(converted):
    +4892        raise ValueError(error_message)
    +4893
    +4894    return function
     
    @@ -42683,11 +42919,11 @@ in order to help with type inference.
    -
    4883def true():
    -4884    """
    -4885    Returns a true Boolean expression.
    -4886    """
    -4887    return Boolean(this=True)
    +            
    4897def true():
    +4898    """
    +4899    Returns a true Boolean expression.
    +4900    """
    +4901    return Boolean(this=True)
     
    @@ -42707,11 +42943,11 @@ in order to help with type inference.
    -
    4890def false():
    -4891    """
    -4892    Returns a false Boolean expression.
    -4893    """
    -4894    return Boolean(this=False)
    +            
    4904def false():
    +4905    """
    +4906    Returns a false Boolean expression.
    +4907    """
    +4908    return Boolean(this=False)
     
    @@ -42731,11 +42967,11 @@ in order to help with type inference.
    -
    4897def null():
    -4898    """
    -4899    Returns a Null expression.
    -4900    """
    -4901    return Null()
    +            
    4911def null():
    +4912    """
    +4913    Returns a Null expression.
    +4914    """
    +4915    return Null()
     
    diff --git a/docs/sqlglot/generator.html b/docs/sqlglot/generator.html index 8a2c709..370b246 100644 --- a/docs/sqlglot/generator.html +++ b/docs/sqlglot/generator.html @@ -756,1938 +756,1937 @@
    59 exp.DateAdd: lambda self, e: self.func( 60 "DATE_ADD", e.this, e.expression, e.args.get("unit") 61 ), - 62 exp.DateDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression), - 63 exp.TsOrDsAdd: lambda self, e: self.func( - 64 "TS_OR_DS_ADD", e.this, e.expression, e.args.get("unit") - 65 ), - 66 exp.VarMap: lambda self, e: self.func("MAP", e.args["keys"], e.args["values"]), - 67 exp.CharacterSetProperty: lambda self, e: f"{'DEFAULT ' if e.args.get('default') else ''}CHARACTER SET={self.sql(e, 'this')}", - 68 exp.ExecuteAsProperty: lambda self, e: self.naked_property(e), - 69 exp.ExternalProperty: lambda self, e: "EXTERNAL", - 70 exp.LanguageProperty: lambda self, e: self.naked_property(e), - 71 exp.LocationProperty: lambda self, e: self.naked_property(e), - 72 exp.LogProperty: lambda self, e: f"{'NO ' if e.args.get('no') else ''}LOG", - 73 exp.MaterializedProperty: lambda self, e: "MATERIALIZED", - 74 exp.NoPrimaryIndexProperty: lambda self, e: "NO PRIMARY INDEX", - 75 exp.OnCommitProperty: lambda self, e: "ON COMMIT PRESERVE ROWS", - 76 exp.ReturnsProperty: lambda self, e: self.naked_property(e), - 77 exp.SetProperty: lambda self, e: f"{'MULTI' if e.args.get('multi') else ''}SET", - 78 exp.SqlSecurityProperty: lambda self, e: f"SQL SECURITY {'DEFINER' if e.args.get('definer') else 'INVOKER'}", - 79 exp.TemporaryProperty: lambda self, e: f"{'GLOBAL ' if e.args.get('global_') else ''}TEMPORARY", - 80 exp.TransientProperty: lambda self, e: "TRANSIENT", - 81 exp.VolatilityProperty: lambda self, e: e.name, - 82 exp.WithJournalTableProperty: lambda self, e: f"WITH JOURNAL TABLE={self.sql(e, 'this')}", - 83 exp.CaseSpecificColumnConstraint: lambda self, e: f"{'NOT ' if e.args.get('not_') else ''}CASESPECIFIC", - 84 exp.CharacterSetColumnConstraint: lambda self, e: f"CHARACTER SET {self.sql(e, 'this')}", - 85 exp.DateFormatColumnConstraint: lambda self, e: f"FORMAT {self.sql(e, 'this')}", - 86 exp.UppercaseColumnConstraint: lambda self, e: f"UPPERCASE", - 87 exp.TitleColumnConstraint: lambda self, e: f"TITLE {self.sql(e, 'this')}", - 88 exp.PathColumnConstraint: lambda self, e: f"PATH {self.sql(e, 'this')}", - 89 exp.CheckColumnConstraint: lambda self, e: f"CHECK ({self.sql(e, 'this')})", - 90 exp.CommentColumnConstraint: lambda self, e: f"COMMENT {self.sql(e, 'this')}", - 91 exp.CollateColumnConstraint: lambda self, e: f"COLLATE {self.sql(e, 'this')}", - 92 exp.EncodeColumnConstraint: lambda self, e: f"ENCODE {self.sql(e, 'this')}", - 93 exp.DefaultColumnConstraint: lambda self, e: f"DEFAULT {self.sql(e, 'this')}", - 94 exp.InlineLengthColumnConstraint: lambda self, e: f"INLINE LENGTH {self.sql(e, 'this')}", - 95 } - 96 - 97 # Whether or not null ordering is supported in order by - 98 NULL_ORDERING_SUPPORTED = True - 99 - 100 # Whether or not locking reads (i.e. SELECT ... FOR UPDATE/SHARE) are supported - 101 LOCKING_READS_SUPPORTED = False - 102 - 103 # Always do union distinct or union all - 104 EXPLICIT_UNION = False - 105 - 106 # Wrap derived values in parens, usually standard but spark doesn't support it - 107 WRAP_DERIVED_VALUES = True - 108 - 109 # Whether or not create function uses an AS before the RETURN - 110 CREATE_FUNCTION_RETURN_AS = True - 111 - 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 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 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.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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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.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 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 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 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 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 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 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 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 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 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 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 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 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 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 add_sql(self, expression: exp.Add) -> str: -1624 return self.binary(expression, "+") -1625 -1626 def and_sql(self, expression: exp.And) -> str: -1627 return self.connector_sql(expression, "AND") -1628 -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 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 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 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 ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: -1754 return f"{self.sql(expression, 'this')} IGNORE NULLS" -1755 -1756 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: -1757 return f"{self.sql(expression, 'this')} RESPECT NULLS" -1758 -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 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 nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: -1836 return self.binary(expression, "IS DISTINCT FROM") -1837 -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 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 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 # 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 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=' ')}" + 62 exp.TsOrDsAdd: lambda self, e: self.func( + 63 "TS_OR_DS_ADD", e.this, e.expression, e.args.get("unit") + 64 ), + 65 exp.VarMap: lambda self, e: self.func("MAP", e.args["keys"], e.args["values"]), + 66 exp.CharacterSetProperty: lambda self, e: f"{'DEFAULT ' if e.args.get('default') else ''}CHARACTER SET={self.sql(e, 'this')}", + 67 exp.ExecuteAsProperty: lambda self, e: self.naked_property(e), + 68 exp.ExternalProperty: lambda self, e: "EXTERNAL", + 69 exp.LanguageProperty: lambda self, e: self.naked_property(e), + 70 exp.LocationProperty: lambda self, e: self.naked_property(e), + 71 exp.LogProperty: lambda self, e: f"{'NO ' if e.args.get('no') else ''}LOG", + 72 exp.MaterializedProperty: lambda self, e: "MATERIALIZED", + 73 exp.NoPrimaryIndexProperty: lambda self, e: "NO PRIMARY INDEX", + 74 exp.OnCommitProperty: lambda self, e: "ON COMMIT PRESERVE ROWS", + 75 exp.ReturnsProperty: lambda self, e: self.naked_property(e), + 76 exp.SetProperty: lambda self, e: f"{'MULTI' if e.args.get('multi') else ''}SET", + 77 exp.SqlSecurityProperty: lambda self, e: f"SQL SECURITY {'DEFINER' if e.args.get('definer') else 'INVOKER'}", + 78 exp.TemporaryProperty: lambda self, e: f"{'GLOBAL ' if e.args.get('global_') else ''}TEMPORARY", + 79 exp.TransientProperty: lambda self, e: "TRANSIENT", + 80 exp.VolatilityProperty: lambda self, e: e.name, + 81 exp.WithJournalTableProperty: lambda self, e: f"WITH JOURNAL TABLE={self.sql(e, 'this')}", + 82 exp.CaseSpecificColumnConstraint: lambda self, e: f"{'NOT ' if e.args.get('not_') else ''}CASESPECIFIC", + 83 exp.CharacterSetColumnConstraint: lambda self, e: f"CHARACTER SET {self.sql(e, 'this')}", + 84 exp.DateFormatColumnConstraint: lambda self, e: f"FORMAT {self.sql(e, 'this')}", + 85 exp.UppercaseColumnConstraint: lambda self, e: f"UPPERCASE", + 86 exp.TitleColumnConstraint: lambda self, e: f"TITLE {self.sql(e, 'this')}", + 87 exp.PathColumnConstraint: lambda self, e: f"PATH {self.sql(e, 'this')}", + 88 exp.CheckColumnConstraint: lambda self, e: f"CHECK ({self.sql(e, 'this')})", + 89 exp.CommentColumnConstraint: lambda self, e: f"COMMENT {self.sql(e, 'this')}", + 90 exp.CollateColumnConstraint: lambda self, e: f"COLLATE {self.sql(e, 'this')}", + 91 exp.EncodeColumnConstraint: lambda self, e: f"ENCODE {self.sql(e, 'this')}", + 92 exp.DefaultColumnConstraint: lambda self, e: f"DEFAULT {self.sql(e, 'this')}", + 93 exp.InlineLengthColumnConstraint: lambda self, e: f"INLINE LENGTH {self.sql(e, 'this')}", + 94 } + 95 + 96 # Whether or not null ordering is supported in order by + 97 NULL_ORDERING_SUPPORTED = True + 98 + 99 # Whether or not locking reads (i.e. SELECT ... FOR UPDATE/SHARE) are supported + 100 LOCKING_READS_SUPPORTED = False + 101 + 102 # Always do union distinct or union all + 103 EXPLICIT_UNION = False + 104 + 105 # Wrap derived values in parens, usually standard but spark doesn't support it + 106 WRAP_DERIVED_VALUES = True + 107 + 108 # Whether or not create function uses an AS before the RETURN + 109 CREATE_FUNCTION_RETURN_AS = True + 110 + 111 # Whether or not to treat the division operator "/" as integer division + 112 INTEGER_DIVISION = True + 113 + 114 # Whether or not MERGE ... WHEN MATCHED BY SOURCE is allowed + 115 MATCHED_BY_SOURCE = True + 116 + 117 TYPE_MAPPING = { + 118 exp.DataType.Type.NCHAR: "CHAR", + 119 exp.DataType.Type.NVARCHAR: "VARCHAR", + 120 exp.DataType.Type.MEDIUMTEXT: "TEXT", + 121 exp.DataType.Type.LONGTEXT: "TEXT", + 122 exp.DataType.Type.MEDIUMBLOB: "BLOB", + 123 exp.DataType.Type.LONGBLOB: "BLOB", + 124 exp.DataType.Type.INET: "INET", + 125 } + 126 + 127 STAR_MAPPING = { + 128 "except": "EXCEPT", + 129 "replace": "REPLACE", + 130 } + 131 + 132 TOKEN_MAPPING: t.Dict[TokenType, str] = {} + 133 + 134 STRUCT_DELIMITER = ("<", ">") + 135 + 136 PARAMETER_TOKEN = "@" + 137 + 138 PROPERTIES_LOCATION = { + 139 exp.AfterJournalProperty: exp.Properties.Location.POST_NAME, + 140 exp.AlgorithmProperty: exp.Properties.Location.POST_CREATE, + 141 exp.AutoIncrementProperty: exp.Properties.Location.POST_SCHEMA, + 142 exp.BlockCompressionProperty: exp.Properties.Location.POST_NAME, + 143 exp.CharacterSetProperty: exp.Properties.Location.POST_SCHEMA, + 144 exp.ChecksumProperty: exp.Properties.Location.POST_NAME, + 145 exp.CollateProperty: exp.Properties.Location.POST_SCHEMA, + 146 exp.Cluster: exp.Properties.Location.POST_SCHEMA, + 147 exp.DataBlocksizeProperty: exp.Properties.Location.POST_NAME, + 148 exp.DefinerProperty: exp.Properties.Location.POST_CREATE, + 149 exp.DistKeyProperty: exp.Properties.Location.POST_SCHEMA, + 150 exp.DistStyleProperty: exp.Properties.Location.POST_SCHEMA, + 151 exp.EngineProperty: exp.Properties.Location.POST_SCHEMA, + 152 exp.ExecuteAsProperty: exp.Properties.Location.POST_SCHEMA, + 153 exp.ExternalProperty: exp.Properties.Location.POST_CREATE, + 154 exp.FallbackProperty: exp.Properties.Location.POST_NAME, + 155 exp.FileFormatProperty: exp.Properties.Location.POST_WITH, + 156 exp.FreespaceProperty: exp.Properties.Location.POST_NAME, + 157 exp.IsolatedLoadingProperty: exp.Properties.Location.POST_NAME, + 158 exp.JournalProperty: exp.Properties.Location.POST_NAME, + 159 exp.LanguageProperty: exp.Properties.Location.POST_SCHEMA, + 160 exp.LikeProperty: exp.Properties.Location.POST_SCHEMA, + 161 exp.LocationProperty: exp.Properties.Location.POST_SCHEMA, + 162 exp.LockingProperty: exp.Properties.Location.POST_ALIAS, + 163 exp.LogProperty: exp.Properties.Location.POST_NAME, + 164 exp.MaterializedProperty: exp.Properties.Location.POST_CREATE, + 165 exp.MergeBlockRatioProperty: exp.Properties.Location.POST_NAME, + 166 exp.NoPrimaryIndexProperty: exp.Properties.Location.POST_EXPRESSION, + 167 exp.OnCommitProperty: exp.Properties.Location.POST_EXPRESSION, + 168 exp.PartitionedByProperty: exp.Properties.Location.POST_WITH, + 169 exp.Property: exp.Properties.Location.POST_WITH, + 170 exp.ReturnsProperty: exp.Properties.Location.POST_SCHEMA, + 171 exp.RowFormatDelimitedProperty: exp.Properties.Location.POST_SCHEMA, + 172 exp.RowFormatSerdeProperty: exp.Properties.Location.POST_SCHEMA, + 173 exp.SchemaCommentProperty: exp.Properties.Location.POST_SCHEMA, + 174 exp.SerdeProperties: exp.Properties.Location.POST_SCHEMA, + 175 exp.SetProperty: exp.Properties.Location.POST_CREATE, + 176 exp.SortKeyProperty: exp.Properties.Location.POST_SCHEMA, + 177 exp.SqlSecurityProperty: exp.Properties.Location.POST_CREATE, + 178 exp.TableFormatProperty: exp.Properties.Location.POST_WITH, + 179 exp.TemporaryProperty: exp.Properties.Location.POST_CREATE, + 180 exp.TransientProperty: exp.Properties.Location.POST_CREATE, + 181 exp.VolatilityProperty: exp.Properties.Location.POST_SCHEMA, + 182 exp.WithDataProperty: exp.Properties.Location.POST_EXPRESSION, + 183 exp.WithJournalTableProperty: exp.Properties.Location.POST_NAME, + 184 } + 185 + 186 WITH_SEPARATED_COMMENTS = (exp.Select, exp.From, exp.Where, exp.Binary) + 187 SENTINEL_LINE_BREAK = "__SQLGLOT__LB__" + 188 + 189 __slots__ = ( + 190 "time_mapping", + 191 "time_trie", + 192 "pretty", + 193 "quote_start", + 194 "quote_end", + 195 "identifier_start", + 196 "identifier_end", + 197 "identify", + 198 "normalize", + 199 "string_escape", + 200 "identifier_escape", + 201 "pad", + 202 "index_offset", + 203 "unnest_column_only", + 204 "alias_post_tablesample", + 205 "normalize_functions", + 206 "unsupported_level", + 207 "unsupported_messages", + 208 "null_ordering", + 209 "max_unsupported", + 210 "_indent", + 211 "_escaped_quote_end", + 212 "_escaped_identifier_end", + 213 "_leading_comma", + 214 "_max_text_width", + 215 "_comments", + 216 ) + 217 + 218 def __init__( + 219 self, + 220 time_mapping=None, + 221 time_trie=None, + 222 pretty=None, + 223 quote_start=None, + 224 quote_end=None, + 225 identifier_start=None, + 226 identifier_end=None, + 227 identify=False, + 228 normalize=False, + 229 string_escape=None, + 230 identifier_escape=None, + 231 pad=2, + 232 indent=2, + 233 index_offset=0, + 234 unnest_column_only=False, + 235 alias_post_tablesample=False, + 236 normalize_functions="upper", + 237 unsupported_level=ErrorLevel.WARN, + 238 null_ordering=None, + 239 max_unsupported=3, + 240 leading_comma=False, + 241 max_text_width=80, + 242 comments=True, + 243 ): + 244 import sqlglot + 245 + 246 self.time_mapping = time_mapping or {} + 247 self.time_trie = time_trie + 248 self.pretty = pretty if pretty is not None else sqlglot.pretty + 249 self.quote_start = quote_start or "'" + 250 self.quote_end = quote_end or "'" + 251 self.identifier_start = identifier_start or '"' + 252 self.identifier_end = identifier_end or '"' + 253 self.identify = identify + 254 self.normalize = normalize + 255 self.string_escape = string_escape or "'" + 256 self.identifier_escape = identifier_escape or '"' + 257 self.pad = pad + 258 self.index_offset = index_offset + 259 self.unnest_column_only = unnest_column_only + 260 self.alias_post_tablesample = alias_post_tablesample + 261 self.normalize_functions = normalize_functions + 262 self.unsupported_level = unsupported_level + 263 self.unsupported_messages = [] + 264 self.max_unsupported = max_unsupported + 265 self.null_ordering = null_ordering + 266 self._indent = indent + 267 self._escaped_quote_end = self.string_escape + self.quote_end + 268 self._escaped_identifier_end = self.identifier_escape + self.identifier_end + 269 self._leading_comma = leading_comma + 270 self._max_text_width = max_text_width + 271 self._comments = comments + 272 + 273 def generate(self, expression: t.Optional[exp.Expression]) -> str: + 274 """ + 275 Generates a SQL string by interpreting the given syntax tree. + 276 + 277 Args + 278 expression: the syntax tree. + 279 + 280 Returns + 281 the SQL string. + 282 """ + 283 self.unsupported_messages = [] + 284 sql = self.sql(expression).strip() + 285 + 286 if self.unsupported_level == ErrorLevel.IGNORE: + 287 return sql + 288 + 289 if self.unsupported_level == ErrorLevel.WARN: + 290 for msg in self.unsupported_messages: + 291 logger.warning(msg) + 292 elif self.unsupported_level == ErrorLevel.RAISE and self.unsupported_messages: + 293 raise UnsupportedError(concat_messages(self.unsupported_messages, self.max_unsupported)) + 294 + 295 if self.pretty: + 296 sql = sql.replace(self.SENTINEL_LINE_BREAK, "\n") + 297 return sql + 298 + 299 def unsupported(self, message: str) -> None: + 300 if self.unsupported_level == ErrorLevel.IMMEDIATE: + 301 raise UnsupportedError(message) + 302 self.unsupported_messages.append(message) + 303 + 304 def sep(self, sep: str = " ") -> str: + 305 return f"{sep.strip()}\n" if self.pretty else sep + 306 + 307 def seg(self, sql: str, sep: str = " ") -> str: + 308 return f"{self.sep(sep)}{sql}" + 309 + 310 def pad_comment(self, comment: str) -> str: + 311 comment = " " + comment if comment[0].strip() else comment + 312 comment = comment + " " if comment[-1].strip() else comment + 313 return comment + 314 + 315 def maybe_comment(self, sql: str, expression: exp.Expression) -> str: + 316 comments = expression.comments if self._comments else None + 317 + 318 if not comments: + 319 return sql + 320 + 321 sep = "\n" if self.pretty else " " + 322 comments_sql = sep.join( + 323 f"/*{self.pad_comment(comment)}*/" for comment in comments if comment + 324 ) + 325 + 326 if not comments_sql: + 327 return sql + 328 + 329 if isinstance(expression, self.WITH_SEPARATED_COMMENTS): + 330 return f"{comments_sql}{self.sep()}{sql}" + 331 + 332 return f"{sql} {comments_sql}" + 333 + 334 def wrap(self, expression: exp.Expression | str) -> str: + 335 this_sql = self.indent( + 336 self.sql(expression) + 337 if isinstance(expression, (exp.Select, exp.Union)) + 338 else self.sql(expression, "this"), + 339 level=1, + 340 pad=0, + 341 ) + 342 return f"({self.sep('')}{this_sql}{self.seg(')', sep='')}" + 343 + 344 def no_identify(self, func: t.Callable[..., str], *args, **kwargs) -> str: + 345 original = self.identify + 346 self.identify = False + 347 result = func(*args, **kwargs) + 348 self.identify = original + 349 return result + 350 + 351 def normalize_func(self, name: str) -> str: + 352 if self.normalize_functions == "upper": + 353 return name.upper() + 354 if self.normalize_functions == "lower": + 355 return name.lower() + 356 return name + 357 + 358 def indent( + 359 self, + 360 sql: str, + 361 level: int = 0, + 362 pad: t.Optional[int] = None, + 363 skip_first: bool = False, + 364 skip_last: bool = False, + 365 ) -> str: + 366 if not self.pretty: + 367 return sql + 368 + 369 pad = self.pad if pad is None else pad + 370 lines = sql.split("\n") + 371 + 372 return "\n".join( + 373 line + 374 if (skip_first and i == 0) or (skip_last and i == len(lines) - 1) + 375 else f"{' ' * (level * self._indent + pad)}{line}" + 376 for i, line in enumerate(lines) + 377 ) + 378 + 379 def sql( + 380 self, + 381 expression: t.Optional[str | exp.Expression], + 382 key: t.Optional[str] = None, + 383 comment: bool = True, + 384 ) -> str: + 385 if not expression: + 386 return "" + 387 + 388 if isinstance(expression, str): + 389 return expression + 390 + 391 if key: + 392 return self.sql(expression.args.get(key)) + 393 + 394 transform = self.TRANSFORMS.get(expression.__class__) + 395 + 396 if callable(transform): + 397 sql = transform(self, expression) + 398 elif transform: + 399 sql = transform + 400 elif isinstance(expression, exp.Expression): + 401 exp_handler_name = f"{expression.key}_sql" + 402 + 403 if hasattr(self, exp_handler_name): + 404 sql = getattr(self, exp_handler_name)(expression) + 405 elif isinstance(expression, exp.Func): + 406 sql = self.function_fallback_sql(expression) + 407 elif isinstance(expression, exp.Property): + 408 sql = self.property_sql(expression) + 409 else: + 410 raise ValueError(f"Unsupported expression type {expression.__class__.__name__}") + 411 else: + 412 raise ValueError(f"Expected an Expression. Received {type(expression)}: {expression}") + 413 + 414 return self.maybe_comment(sql, expression) if self._comments and comment else sql + 415 + 416 def uncache_sql(self, expression: exp.Uncache) -> str: + 417 table = self.sql(expression, "this") + 418 exists_sql = " IF EXISTS" if expression.args.get("exists") else "" + 419 return f"UNCACHE TABLE{exists_sql} {table}" + 420 + 421 def cache_sql(self, expression: exp.Cache) -> str: + 422 lazy = " LAZY" if expression.args.get("lazy") else "" + 423 table = self.sql(expression, "this") + 424 options = expression.args.get("options") + 425 options = f" OPTIONS({self.sql(options[0])} = {self.sql(options[1])})" if options else "" + 426 sql = self.sql(expression, "expression") + 427 sql = f" AS{self.sep()}{sql}" if sql else "" + 428 sql = f"CACHE{lazy} TABLE {table}{options}{sql}" + 429 return self.prepend_ctes(expression, sql) + 430 + 431 def characterset_sql(self, expression: exp.CharacterSet) -> str: + 432 if isinstance(expression.parent, exp.Cast): + 433 return f"CHAR CHARACTER SET {self.sql(expression, 'this')}" + 434 default = "DEFAULT " if expression.args.get("default") else "" + 435 return f"{default}CHARACTER SET={self.sql(expression, 'this')}" + 436 + 437 def column_sql(self, expression: exp.Column) -> str: + 438 return ".".join( + 439 self.sql(part) + 440 for part in ( + 441 expression.args.get("catalog"), + 442 expression.args.get("db"), + 443 expression.args.get("table"), + 444 expression.args.get("this"), + 445 ) + 446 if part + 447 ) + 448 + 449 def columndef_sql(self, expression: exp.ColumnDef) -> str: + 450 column = self.sql(expression, "this") + 451 kind = self.sql(expression, "kind") + 452 constraints = self.expressions(expression, key="constraints", sep=" ", flat=True) + 453 exists = "IF NOT EXISTS " if expression.args.get("exists") else "" + 454 kind = f" {kind}" if kind else "" + 455 constraints = f" {constraints}" if constraints else "" + 456 + 457 return f"{exists}{column}{kind}{constraints}" + 458 + 459 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: + 460 this = self.sql(expression, "this") + 461 kind_sql = self.sql(expression, "kind") + 462 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql + 463 + 464 def autoincrementcolumnconstraint_sql(self, _) -> str: + 465 return self.token_sql(TokenType.AUTO_INCREMENT) + 466 + 467 def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str: + 468 if isinstance(expression.this, list): + 469 this = self.wrap(self.expressions(expression, key="this", flat=True)) + 470 else: + 471 this = self.sql(expression, "this") + 472 + 473 return f"COMPRESS {this}" + 474 + 475 def generatedasidentitycolumnconstraint_sql( + 476 self, expression: exp.GeneratedAsIdentityColumnConstraint + 477 ) -> str: + 478 this = "" + 479 if expression.this is not None: + 480 this = " ALWAYS " if expression.this else " BY DEFAULT " + 481 start = expression.args.get("start") + 482 start = f"START WITH {start}" if start else "" + 483 increment = expression.args.get("increment") + 484 increment = f" INCREMENT BY {increment}" if increment else "" + 485 minvalue = expression.args.get("minvalue") + 486 minvalue = f" MINVALUE {minvalue}" if minvalue else "" + 487 maxvalue = expression.args.get("maxvalue") + 488 maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else "" + 489 cycle = expression.args.get("cycle") + 490 cycle_sql = "" + 491 if cycle is not None: + 492 cycle_sql = f"{' NO' if not cycle else ''} CYCLE" + 493 cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql + 494 sequence_opts = "" + 495 if start or increment or cycle_sql: + 496 sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}" + 497 sequence_opts = f" ({sequence_opts.strip()})" + 498 return f"GENERATED{this}AS IDENTITY{sequence_opts}" + 499 + 500 def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str: + 501 return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL" + 502 + 503 def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str: + 504 desc = expression.args.get("desc") + 505 if desc is not None: + 506 return f"PRIMARY KEY{' DESC' if desc else ' ASC'}" + 507 return f"PRIMARY KEY" + 508 + 509 def uniquecolumnconstraint_sql(self, _) -> str: + 510 return "UNIQUE" + 511 + 512 def create_sql(self, expression: exp.Create) -> str: + 513 kind = self.sql(expression, "kind").upper() + 514 properties = expression.args.get("properties") + 515 properties_exp = expression.copy() + 516 properties_locs = self.locate_properties(properties) if properties else {} + 517 if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get( + 518 exp.Properties.Location.POST_WITH + 519 ): + 520 properties_exp.set( + 521 "properties", + 522 exp.Properties( + 523 expressions=[ + 524 *properties_locs[exp.Properties.Location.POST_SCHEMA], + 525 *properties_locs[exp.Properties.Location.POST_WITH], + 526 ] + 527 ), + 528 ) + 529 if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME): + 530 this_name = self.sql(expression.this, "this") + 531 this_properties = self.properties( + 532 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]), + 533 wrapped=False, + 534 ) + 535 this_schema = f"({self.expressions(expression.this)})" + 536 this = f"{this_name}, {this_properties} {this_schema}" + 537 properties_sql = "" + 538 else: + 539 this = self.sql(expression, "this") + 540 properties_sql = self.sql(properties_exp, "properties") + 541 begin = " BEGIN" if expression.args.get("begin") else "" + 542 expression_sql = self.sql(expression, "expression") + 543 if expression_sql: + 544 expression_sql = f"{begin}{self.sep()}{expression_sql}" + 545 + 546 if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return): + 547 if properties_locs.get(exp.Properties.Location.POST_ALIAS): + 548 postalias_props_sql = self.properties( + 549 exp.Properties( + 550 expressions=properties_locs[exp.Properties.Location.POST_ALIAS] + 551 ), + 552 wrapped=False, + 553 ) + 554 expression_sql = f" AS {postalias_props_sql}{expression_sql}" + 555 else: + 556 expression_sql = f" AS{expression_sql}" + 557 + 558 postindex_props_sql = "" + 559 if properties_locs.get(exp.Properties.Location.POST_INDEX): + 560 postindex_props_sql = self.properties( + 561 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]), + 562 wrapped=False, + 563 prefix=" ", + 564 ) + 565 + 566 indexes = expression.args.get("indexes") + 567 if indexes: + 568 indexes_sql: t.List[str] = [] + 569 for index in indexes: + 570 ind_unique = " UNIQUE" if index.args.get("unique") else "" + 571 ind_primary = " PRIMARY" if index.args.get("primary") else "" + 572 ind_amp = " AMP" if index.args.get("amp") else "" + 573 ind_name = f" {index.name}" if index.name else "" + 574 ind_columns = ( + 575 f' ({self.expressions(index, key="columns", flat=True)})' + 576 if index.args.get("columns") + 577 else "" + 578 ) + 579 ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}" + 580 + 581 if indexes_sql: + 582 indexes_sql.append(ind_sql) + 583 else: + 584 indexes_sql.append( + 585 f"{ind_sql}{postindex_props_sql}" + 586 if index.args.get("primary") + 587 else f"{postindex_props_sql}{ind_sql}" + 588 ) + 589 + 590 index_sql = "".join(indexes_sql) + 591 else: + 592 index_sql = postindex_props_sql + 593 + 594 replace = " OR REPLACE" if expression.args.get("replace") else "" + 595 unique = " UNIQUE" if expression.args.get("unique") else "" + 596 volatile = " VOLATILE" if expression.args.get("volatile") else "" + 597 + 598 postcreate_props_sql = "" + 599 if properties_locs.get(exp.Properties.Location.POST_CREATE): + 600 postcreate_props_sql = self.properties( + 601 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]), + 602 sep=" ", + 603 prefix=" ", + 604 wrapped=False, + 605 ) + 606 + 607 modifiers = "".join((replace, unique, volatile, postcreate_props_sql)) + 608 + 609 postexpression_props_sql = "" + 610 if properties_locs.get(exp.Properties.Location.POST_EXPRESSION): + 611 postexpression_props_sql = self.properties( + 612 exp.Properties( + 613 expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION] + 614 ), + 615 sep=" ", + 616 prefix=" ", + 617 wrapped=False, + 618 ) + 619 + 620 exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else "" + 621 no_schema_binding = ( + 622 " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else "" + 623 ) + 624 + 625 expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}" + 626 return self.prepend_ctes(expression, expression_sql) + 627 + 628 def describe_sql(self, expression: exp.Describe) -> str: + 629 return f"DESCRIBE {self.sql(expression, 'this')}" + 630 + 631 def prepend_ctes(self, expression: exp.Expression, sql: str) -> str: + 632 with_ = self.sql(expression, "with") + 633 if with_: + 634 sql = f"{with_}{self.sep()}{sql}" + 635 return sql + 636 + 637 def with_sql(self, expression: exp.With) -> str: + 638 sql = self.expressions(expression, flat=True) + 639 recursive = "RECURSIVE " if expression.args.get("recursive") else "" + 640 + 641 return f"WITH {recursive}{sql}" + 642 + 643 def cte_sql(self, expression: exp.CTE) -> str: + 644 alias = self.sql(expression, "alias") + 645 return f"{alias} AS {self.wrap(expression)}" + 646 + 647 def tablealias_sql(self, expression: exp.TableAlias) -> str: + 648 alias = self.sql(expression, "this") + 649 columns = self.expressions(expression, key="columns", flat=True) + 650 columns = f"({columns})" if columns else "" + 651 return f"{alias}{columns}" + 652 + 653 def bitstring_sql(self, expression: exp.BitString) -> str: + 654 return self.sql(expression, "this") + 655 + 656 def hexstring_sql(self, expression: exp.HexString) -> str: + 657 return self.sql(expression, "this") + 658 + 659 def datatype_sql(self, expression: exp.DataType) -> str: + 660 type_value = expression.this + 661 type_sql = self.TYPE_MAPPING.get(type_value, type_value.value) + 662 nested = "" + 663 interior = self.expressions(expression, flat=True) + 664 values = "" + 665 if interior: + 666 if expression.args.get("nested"): + 667 nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}" + 668 if expression.args.get("values") is not None: + 669 delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")") + 670 values = ( + 671 f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}" + 672 ) + 673 else: + 674 nested = f"({interior})" + 675 + 676 return f"{type_sql}{nested}{values}" + 677 + 678 def directory_sql(self, expression: exp.Directory) -> str: + 679 local = "LOCAL " if expression.args.get("local") else "" + 680 row_format = self.sql(expression, "row_format") + 681 row_format = f" {row_format}" if row_format else "" + 682 return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}" + 683 + 684 def delete_sql(self, expression: exp.Delete) -> str: + 685 this = self.sql(expression, "this") + 686 this = f" FROM {this}" if this else "" + 687 using_sql = ( + 688 f" USING {self.expressions(expression, 'using', sep=', USING ')}" + 689 if expression.args.get("using") + 690 else "" + 691 ) + 692 where_sql = self.sql(expression, "where") + 693 returning = self.sql(expression, "returning") + 694 sql = f"DELETE{this}{using_sql}{where_sql}{returning}" + 695 return self.prepend_ctes(expression, sql) + 696 + 697 def drop_sql(self, expression: exp.Drop) -> str: + 698 this = self.sql(expression, "this") + 699 kind = expression.args["kind"] + 700 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " + 701 temporary = " TEMPORARY" if expression.args.get("temporary") else "" + 702 materialized = " MATERIALIZED" if expression.args.get("materialized") else "" + 703 cascade = " CASCADE" if expression.args.get("cascade") else "" + 704 return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}" + 705 + 706 def except_sql(self, expression: exp.Except) -> str: + 707 return self.prepend_ctes( + 708 expression, + 709 self.set_operation(expression, self.except_op(expression)), + 710 ) + 711 + 712 def except_op(self, expression: exp.Except) -> str: + 713 return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}" + 714 + 715 def fetch_sql(self, expression: exp.Fetch) -> str: + 716 direction = expression.args.get("direction") + 717 direction = f" {direction.upper()}" if direction else "" + 718 count = expression.args.get("count") + 719 count = f" {count}" if count else "" + 720 return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY" + 721 + 722 def filter_sql(self, expression: exp.Filter) -> str: + 723 this = self.sql(expression, "this") + 724 where = self.sql(expression, "expression")[1:] # where has a leading space + 725 return f"{this} FILTER({where})" + 726 + 727 def hint_sql(self, expression: exp.Hint) -> str: + 728 if self.sql(expression, "this"): + 729 self.unsupported("Hints are not supported") + 730 return "" + 731 + 732 def index_sql(self, expression: exp.Index) -> str: + 733 this = self.sql(expression, "this") + 734 table = self.sql(expression, "table") + 735 columns = self.sql(expression, "columns") + 736 return f"{this} ON {table} {columns}" + 737 + 738 def identifier_sql(self, expression: exp.Identifier) -> str: + 739 text = expression.name + 740 text = text.lower() if self.normalize else text + 741 text = text.replace(self.identifier_end, self._escaped_identifier_end) + 742 if expression.args.get("quoted") or self.identify: + 743 text = f"{self.identifier_start}{text}{self.identifier_end}" + 744 return text + 745 + 746 def national_sql(self, expression: exp.National) -> str: + 747 return f"N{self.sql(expression, 'this')}" + 748 + 749 def partition_sql(self, expression: exp.Partition) -> str: + 750 return f"PARTITION({self.expressions(expression)})" + 751 + 752 def properties_sql(self, expression: exp.Properties) -> str: + 753 root_properties = [] + 754 with_properties = [] + 755 + 756 for p in expression.expressions: + 757 p_loc = self.PROPERTIES_LOCATION[p.__class__] + 758 if p_loc == exp.Properties.Location.POST_WITH: + 759 with_properties.append(p) + 760 elif p_loc == exp.Properties.Location.POST_SCHEMA: + 761 root_properties.append(p) + 762 + 763 return self.root_properties( + 764 exp.Properties(expressions=root_properties) + 765 ) + self.with_properties(exp.Properties(expressions=with_properties)) + 766 + 767 def root_properties(self, properties: exp.Properties) -> str: + 768 if properties.expressions: + 769 return self.sep() + self.expressions(properties, indent=False, sep=" ") + 770 return "" + 771 + 772 def properties( + 773 self, + 774 properties: exp.Properties, + 775 prefix: str = "", + 776 sep: str = ", ", + 777 suffix: str = "", + 778 wrapped: bool = True, + 779 ) -> str: + 780 if properties.expressions: + 781 expressions = self.expressions(properties, sep=sep, indent=False) + 782 expressions = self.wrap(expressions) if wrapped else expressions + 783 return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}" + 784 return "" + 785 + 786 def with_properties(self, properties: exp.Properties) -> str: + 787 return self.properties(properties, prefix=self.seg("WITH")) + 788 + 789 def locate_properties( + 790 self, properties: exp.Properties + 791 ) -> t.Dict[exp.Properties.Location, list[exp.Property]]: + 792 properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = { + 793 key: [] for key in exp.Properties.Location + 794 } + 795 + 796 for p in properties.expressions: + 797 p_loc = self.PROPERTIES_LOCATION[p.__class__] + 798 if p_loc == exp.Properties.Location.POST_NAME: + 799 properties_locs[exp.Properties.Location.POST_NAME].append(p) + 800 elif p_loc == exp.Properties.Location.POST_INDEX: + 801 properties_locs[exp.Properties.Location.POST_INDEX].append(p) + 802 elif p_loc == exp.Properties.Location.POST_SCHEMA: + 803 properties_locs[exp.Properties.Location.POST_SCHEMA].append(p) + 804 elif p_loc == exp.Properties.Location.POST_WITH: + 805 properties_locs[exp.Properties.Location.POST_WITH].append(p) + 806 elif p_loc == exp.Properties.Location.POST_CREATE: + 807 properties_locs[exp.Properties.Location.POST_CREATE].append(p) + 808 elif p_loc == exp.Properties.Location.POST_ALIAS: + 809 properties_locs[exp.Properties.Location.POST_ALIAS].append(p) + 810 elif p_loc == exp.Properties.Location.POST_EXPRESSION: + 811 properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p) + 812 elif p_loc == exp.Properties.Location.UNSUPPORTED: + 813 self.unsupported(f"Unsupported property {p.key}") + 814 + 815 return properties_locs + 816 + 817 def property_sql(self, expression: exp.Property) -> str: + 818 property_cls = expression.__class__ + 819 if property_cls == exp.Property: + 820 return f"{expression.name}={self.sql(expression, 'value')}" + 821 + 822 property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls) + 823 if not property_name: + 824 self.unsupported(f"Unsupported property {expression.key}") + 825 + 826 return f"{property_name}={self.sql(expression, 'this')}" + 827 + 828 def likeproperty_sql(self, expression: exp.LikeProperty) -> str: + 829 options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions) + 830 options = f" {options}" if options else "" + 831 return f"LIKE {self.sql(expression, 'this')}{options}" + 832 + 833 def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str: + 834 no = "NO " if expression.args.get("no") else "" + 835 protection = " PROTECTION" if expression.args.get("protection") else "" + 836 return f"{no}FALLBACK{protection}" + 837 + 838 def journalproperty_sql(self, expression: exp.JournalProperty) -> str: + 839 no = "NO " if expression.args.get("no") else "" + 840 dual = "DUAL " if expression.args.get("dual") else "" + 841 before = "BEFORE " if expression.args.get("before") else "" + 842 return f"{no}{dual}{before}JOURNAL" + 843 + 844 def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str: + 845 freespace = self.sql(expression, "this") + 846 percent = " PERCENT" if expression.args.get("percent") else "" + 847 return f"FREESPACE={freespace}{percent}" + 848 + 849 def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str: + 850 no = "NO " if expression.args.get("no") else "" + 851 dual = "DUAL " if expression.args.get("dual") else "" + 852 local = "" + 853 if expression.args.get("local") is not None: + 854 local = "LOCAL " if expression.args.get("local") else "NOT LOCAL " + 855 return f"{no}{dual}{local}AFTER JOURNAL" + 856 + 857 def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str: + 858 if expression.args.get("default"): + 859 property = "DEFAULT" + 860 elif expression.args.get("on"): + 861 property = "ON" + 862 else: + 863 property = "OFF" + 864 return f"CHECKSUM={property}" + 865 + 866 def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str: + 867 if expression.args.get("no"): + 868 return "NO MERGEBLOCKRATIO" + 869 if expression.args.get("default"): + 870 return "DEFAULT MERGEBLOCKRATIO" + 871 + 872 percent = " PERCENT" if expression.args.get("percent") else "" + 873 return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}" + 874 + 875 def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str: + 876 default = expression.args.get("default") + 877 min = expression.args.get("min") + 878 if default is not None or min is not None: + 879 if default: + 880 property = "DEFAULT" + 881 elif min: + 882 property = "MINIMUM" + 883 else: + 884 property = "MAXIMUM" + 885 return f"{property} DATABLOCKSIZE" + 886 else: + 887 units = expression.args.get("units") + 888 units = f" {units}" if units else "" + 889 return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}" + 890 + 891 def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str: + 892 autotemp = expression.args.get("autotemp") + 893 always = expression.args.get("always") + 894 default = expression.args.get("default") + 895 manual = expression.args.get("manual") + 896 never = expression.args.get("never") + 897 + 898 if autotemp is not None: + 899 property = f"AUTOTEMP({self.expressions(autotemp)})" + 900 elif always: + 901 property = "ALWAYS" + 902 elif default: + 903 property = "DEFAULT" + 904 elif manual: + 905 property = "MANUAL" + 906 elif never: + 907 property = "NEVER" + 908 return f"BLOCKCOMPRESSION={property}" + 909 + 910 def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str: + 911 no = expression.args.get("no") + 912 no = " NO" if no else "" + 913 concurrent = expression.args.get("concurrent") + 914 concurrent = " CONCURRENT" if concurrent else "" + 915 + 916 for_ = "" + 917 if expression.args.get("for_all"): + 918 for_ = " FOR ALL" + 919 elif expression.args.get("for_insert"): + 920 for_ = " FOR INSERT" + 921 elif expression.args.get("for_none"): + 922 for_ = " FOR NONE" + 923 return f"WITH{no}{concurrent} ISOLATED LOADING{for_}" + 924 + 925 def lockingproperty_sql(self, expression: exp.LockingProperty) -> str: + 926 kind = expression.args.get("kind") + 927 this: str = f" {this}" if expression.this else "" + 928 for_or_in = expression.args.get("for_or_in") + 929 lock_type = expression.args.get("lock_type") + 930 override = " OVERRIDE" if expression.args.get("override") else "" + 931 return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}" + 932 + 933 def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str: + 934 data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA" + 935 statistics = expression.args.get("statistics") + 936 statistics_sql = "" + 937 if statistics is not None: + 938 statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS" + 939 return f"{data_sql}{statistics_sql}" + 940 + 941 def insert_sql(self, expression: exp.Insert) -> str: + 942 overwrite = expression.args.get("overwrite") + 943 + 944 if isinstance(expression.this, exp.Directory): + 945 this = "OVERWRITE " if overwrite else "INTO " + 946 else: + 947 this = "OVERWRITE TABLE " if overwrite else "INTO " + 948 + 949 alternative = expression.args.get("alternative") + 950 alternative = f" OR {alternative} " if alternative else " " + 951 this = f"{this}{self.sql(expression, 'this')}" + 952 + 953 exists = " IF EXISTS " if expression.args.get("exists") else " " + 954 partition_sql = ( + 955 self.sql(expression, "partition") if expression.args.get("partition") else "" + 956 ) + 957 expression_sql = self.sql(expression, "expression") + 958 returning = self.sql(expression, "returning") + 959 sep = self.sep() if partition_sql else "" + 960 sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}" + 961 return self.prepend_ctes(expression, sql) + 962 + 963 def intersect_sql(self, expression: exp.Intersect) -> str: + 964 return self.prepend_ctes( + 965 expression, + 966 self.set_operation(expression, self.intersect_op(expression)), + 967 ) + 968 + 969 def intersect_op(self, expression: exp.Intersect) -> str: + 970 return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}" + 971 + 972 def introducer_sql(self, expression: exp.Introducer) -> str: + 973 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" + 974 + 975 def pseudotype_sql(self, expression: exp.PseudoType) -> str: + 976 return expression.name.upper() + 977 + 978 def returning_sql(self, expression: exp.Returning) -> str: + 979 return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}" + 980 + 981 def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str: + 982 fields = expression.args.get("fields") + 983 fields = f" FIELDS TERMINATED BY {fields}" if fields else "" + 984 escaped = expression.args.get("escaped") + 985 escaped = f" ESCAPED BY {escaped}" if escaped else "" + 986 items = expression.args.get("collection_items") + 987 items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else "" + 988 keys = expression.args.get("map_keys") + 989 keys = f" MAP KEYS TERMINATED BY {keys}" if keys else "" + 990 lines = expression.args.get("lines") + 991 lines = f" LINES TERMINATED BY {lines}" if lines else "" + 992 null = expression.args.get("null") + 993 null = f" NULL DEFINED AS {null}" if null else "" + 994 return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}" + 995 + 996 def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str: + 997 table = ".".join( + 998 part + 999 for part in [ +1000 self.sql(expression, "catalog"), +1001 self.sql(expression, "db"), +1002 self.sql(expression, "this"), +1003 ] +1004 if part +1005 ) +1006 +1007 alias = self.sql(expression, "alias") +1008 alias = f"{sep}{alias}" if alias else "" +1009 hints = self.expressions(expression, key="hints", sep=", ", flat=True) +1010 hints = f" WITH ({hints})" if hints else "" +1011 laterals = self.expressions(expression, key="laterals", sep="") +1012 joins = self.expressions(expression, key="joins", sep="") +1013 pivots = self.expressions(expression, key="pivots", sep="") +1014 system_time = expression.args.get("system_time") +1015 system_time = f" {self.sql(expression, 'system_time')}" if system_time else "" +1016 +1017 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" +1018 +1019 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: +1020 if self.alias_post_tablesample and expression.this.alias: +1021 this = self.sql(expression.this, "this") +1022 alias = f" AS {self.sql(expression.this, 'alias')}" +1023 else: +1024 this = self.sql(expression, "this") +1025 alias = "" +1026 method = self.sql(expression, "method") +1027 method = f"{method.upper()} " if method else "" +1028 numerator = self.sql(expression, "bucket_numerator") +1029 denominator = self.sql(expression, "bucket_denominator") +1030 field = self.sql(expression, "bucket_field") +1031 field = f" ON {field}" if field else "" +1032 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" +1033 percent = self.sql(expression, "percent") +1034 percent = f"{percent} PERCENT" if percent else "" +1035 rows = self.sql(expression, "rows") +1036 rows = f"{rows} ROWS" if rows else "" +1037 size = self.sql(expression, "size") +1038 seed = self.sql(expression, "seed") +1039 seed = f" {seed_prefix} ({seed})" if seed else "" +1040 kind = expression.args.get("kind", "TABLESAMPLE") +1041 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" +1042 +1043 def pivot_sql(self, expression: exp.Pivot) -> str: +1044 this = self.sql(expression, "this") +1045 alias = self.sql(expression, "alias") +1046 alias = f" AS {alias}" if alias else "" +1047 unpivot = expression.args.get("unpivot") +1048 direction = "UNPIVOT" if unpivot else "PIVOT" +1049 expressions = self.expressions(expression, key="expressions") +1050 field = self.sql(expression, "field") +1051 return f"{this} {direction}({expressions} FOR {field}){alias}" +1052 +1053 def tuple_sql(self, expression: exp.Tuple) -> str: +1054 return f"({self.expressions(expression, flat=True)})" +1055 +1056 def update_sql(self, expression: exp.Update) -> str: +1057 this = self.sql(expression, "this") +1058 set_sql = self.expressions(expression, flat=True) +1059 from_sql = self.sql(expression, "from") +1060 where_sql = self.sql(expression, "where") +1061 returning = self.sql(expression, "returning") +1062 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" +1063 return self.prepend_ctes(expression, sql) +1064 +1065 def values_sql(self, expression: exp.Values) -> str: +1066 args = self.expressions(expression) +1067 alias = self.sql(expression, "alias") +1068 values = f"VALUES{self.seg('')}{args}" +1069 values = ( +1070 f"({values})" +1071 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) +1072 else values +1073 ) +1074 return f"{values} AS {alias}" if alias else values +1075 +1076 def var_sql(self, expression: exp.Var) -> str: +1077 return self.sql(expression, "this") +1078 +1079 def into_sql(self, expression: exp.Into) -> str: +1080 temporary = " TEMPORARY" if expression.args.get("temporary") else "" +1081 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" +1082 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" +1083 +1084 def from_sql(self, expression: exp.From) -> str: +1085 expressions = self.expressions(expression, flat=True) +1086 return f"{self.seg('FROM')} {expressions}" +1087 +1088 def group_sql(self, expression: exp.Group) -> str: +1089 group_by = self.op_expressions("GROUP BY", expression) +1090 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) +1091 grouping_sets = ( +1092 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" +1093 ) +1094 +1095 cube = expression.args.get("cube", []) +1096 if seq_get(cube, 0) is True: +1097 return f"{group_by}{self.seg('WITH CUBE')}" +1098 else: +1099 cube_sql = self.expressions(expression, key="cube", indent=False) +1100 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" +1101 +1102 rollup = expression.args.get("rollup", []) +1103 if seq_get(rollup, 0) is True: +1104 return f"{group_by}{self.seg('WITH ROLLUP')}" +1105 else: +1106 rollup_sql = self.expressions(expression, key="rollup", indent=False) +1107 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" +1108 +1109 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") +1110 +1111 if expression.args.get("expressions") and groupings: +1112 group_by = f"{group_by}," +1113 +1114 return f"{group_by}{groupings}" +1115 +1116 def having_sql(self, expression: exp.Having) -> str: +1117 this = self.indent(self.sql(expression, "this")) +1118 return f"{self.seg('HAVING')}{self.sep()}{this}" +1119 +1120 def join_sql(self, expression: exp.Join) -> str: +1121 op_sql = self.seg( +1122 " ".join( +1123 op +1124 for op in ( +1125 "NATURAL" if expression.args.get("natural") else None, +1126 expression.side, +1127 expression.kind, +1128 "JOIN", +1129 ) +1130 if op +1131 ) +1132 ) +1133 on_sql = self.sql(expression, "on") +1134 using = expression.args.get("using") +1135 +1136 if not on_sql and using: +1137 on_sql = csv(*(self.sql(column) for column in using)) +1138 +1139 if on_sql: +1140 on_sql = self.indent(on_sql, skip_first=True) +1141 space = self.seg(" " * self.pad) if self.pretty else " " +1142 if using: +1143 on_sql = f"{space}USING ({on_sql})" +1144 else: +1145 on_sql = f"{space}ON {on_sql}" +1146 +1147 expression_sql = self.sql(expression, "expression") +1148 this_sql = self.sql(expression, "this") +1149 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" +1150 +1151 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: +1152 args = self.expressions(expression, flat=True) +1153 args = f"({args})" if len(args.split(",")) > 1 else args +1154 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" +1155 +1156 def lateral_sql(self, expression: exp.Lateral) -> str: +1157 this = self.sql(expression, "this") +1158 +1159 if isinstance(expression.this, exp.Subquery): +1160 return f"LATERAL {this}" +1161 +1162 if expression.args.get("view"): +1163 alias = expression.args["alias"] +1164 columns = self.expressions(alias, key="columns", flat=True) +1165 table = f" {alias.name}" if alias.name else "" +1166 columns = f" AS {columns}" if columns else "" +1167 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") +1168 return f"{op_sql}{self.sep()}{this}{table}{columns}" +1169 +1170 alias = self.sql(expression, "alias") +1171 alias = f" AS {alias}" if alias else "" +1172 return f"LATERAL {this}{alias}" +1173 +1174 def limit_sql(self, expression: exp.Limit) -> str: +1175 this = self.sql(expression, "this") +1176 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" +1177 +1178 def offset_sql(self, expression: exp.Offset) -> str: +1179 this = self.sql(expression, "this") +1180 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" +1181 +1182 def lock_sql(self, expression: exp.Lock) -> str: +1183 if self.LOCKING_READS_SUPPORTED: +1184 lock_type = "UPDATE" if expression.args["update"] else "SHARE" +1185 return self.seg(f"FOR {lock_type}") +1186 +1187 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") +1188 return "" +1189 +1190 def literal_sql(self, expression: exp.Literal) -> str: +1191 text = expression.this or "" +1192 if expression.is_string: +1193 text = text.replace(self.quote_end, self._escaped_quote_end) +1194 if self.pretty: +1195 text = text.replace("\n", self.SENTINEL_LINE_BREAK) +1196 text = f"{self.quote_start}{text}{self.quote_end}" +1197 return text +1198 +1199 def loaddata_sql(self, expression: exp.LoadData) -> str: +1200 local = " LOCAL" if expression.args.get("local") else "" +1201 inpath = f" INPATH {self.sql(expression, 'inpath')}" +1202 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" +1203 this = f" INTO TABLE {self.sql(expression, 'this')}" +1204 partition = self.sql(expression, "partition") +1205 partition = f" {partition}" if partition else "" +1206 input_format = self.sql(expression, "input_format") +1207 input_format = f" INPUTFORMAT {input_format}" if input_format else "" +1208 serde = self.sql(expression, "serde") +1209 serde = f" SERDE {serde}" if serde else "" +1210 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" +1211 +1212 def null_sql(self, *_) -> str: +1213 return "NULL" +1214 +1215 def boolean_sql(self, expression: exp.Boolean) -> str: +1216 return "TRUE" if expression.this else "FALSE" +1217 +1218 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: +1219 this = self.sql(expression, "this") +1220 this = f"{this} " if this else this +1221 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore +1222 +1223 def cluster_sql(self, expression: exp.Cluster) -> str: +1224 return self.op_expressions("CLUSTER BY", expression) +1225 +1226 def distribute_sql(self, expression: exp.Distribute) -> str: +1227 return self.op_expressions("DISTRIBUTE BY", expression) +1228 +1229 def sort_sql(self, expression: exp.Sort) -> str: +1230 return self.op_expressions("SORT BY", expression) +1231 +1232 def ordered_sql(self, expression: exp.Ordered) -> str: +1233 desc = expression.args.get("desc") +1234 asc = not desc +1235 +1236 nulls_first = expression.args.get("nulls_first") +1237 nulls_last = not nulls_first +1238 nulls_are_large = self.null_ordering == "nulls_are_large" +1239 nulls_are_small = self.null_ordering == "nulls_are_small" +1240 nulls_are_last = self.null_ordering == "nulls_are_last" +1241 +1242 sort_order = " DESC" if desc else "" +1243 nulls_sort_change = "" +1244 if nulls_first and ( +1245 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last +1246 ): +1247 nulls_sort_change = " NULLS FIRST" +1248 elif ( +1249 nulls_last +1250 and ((asc and nulls_are_small) or (desc and nulls_are_large)) +1251 and not nulls_are_last +1252 ): +1253 nulls_sort_change = " NULLS LAST" +1254 +1255 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: +1256 self.unsupported( +1257 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" +1258 ) +1259 nulls_sort_change = "" +1260 +1261 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" +1262 +1263 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: +1264 partition = self.partition_by_sql(expression) +1265 order = self.sql(expression, "order") +1266 measures = self.sql(expression, "measures") +1267 measures = self.seg(f"MEASURES {measures}") if measures else "" +1268 rows = self.sql(expression, "rows") +1269 rows = self.seg(rows) if rows else "" +1270 after = self.sql(expression, "after") +1271 after = self.seg(after) if after else "" +1272 pattern = self.sql(expression, "pattern") +1273 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" +1274 define = self.sql(expression, "define") +1275 define = self.seg(f"DEFINE {define}") if define else "" +1276 body = "".join( +1277 ( +1278 partition, +1279 order, +1280 measures, +1281 rows, +1282 after, +1283 pattern, +1284 define, +1285 ) +1286 ) +1287 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}" +1288 +1289 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: +1290 return csv( +1291 *sqls, +1292 *[self.sql(sql) for sql in expression.args.get("joins") or []], +1293 self.sql(expression, "match"), +1294 *[self.sql(sql) for sql in expression.args.get("laterals") or []], +1295 self.sql(expression, "where"), +1296 self.sql(expression, "group"), +1297 self.sql(expression, "having"), +1298 self.sql(expression, "qualify"), +1299 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) +1300 if expression.args.get("windows") +1301 else "", +1302 self.sql(expression, "distribute"), +1303 self.sql(expression, "sort"), +1304 self.sql(expression, "cluster"), +1305 self.sql(expression, "order"), +1306 self.sql(expression, "limit"), +1307 self.sql(expression, "offset"), +1308 self.sql(expression, "lock"), +1309 self.sql(expression, "sample"), +1310 sep="", +1311 ) +1312 +1313 def select_sql(self, expression: exp.Select) -> str: +1314 hint = self.sql(expression, "hint") +1315 distinct = self.sql(expression, "distinct") +1316 distinct = f" {distinct}" if distinct else "" +1317 expressions = self.expressions(expression) +1318 expressions = f"{self.sep()}{expressions}" if expressions else expressions +1319 sql = self.query_modifiers( +1320 expression, +1321 f"SELECT{hint}{distinct}{expressions}", +1322 self.sql(expression, "into", comment=False), +1323 self.sql(expression, "from", comment=False), +1324 ) +1325 return self.prepend_ctes(expression, sql) +1326 +1327 def schema_sql(self, expression: exp.Schema) -> str: +1328 this = self.sql(expression, "this") +1329 this = f"{this} " if this else "" +1330 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" +1331 return f"{this}{sql}" +1332 +1333 def star_sql(self, expression: exp.Star) -> str: +1334 except_ = self.expressions(expression, key="except", flat=True) +1335 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" +1336 replace = self.expressions(expression, key="replace", flat=True) +1337 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" +1338 return f"*{except_}{replace}" +1339 +1340 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: +1341 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" +1342 +1343 def parameter_sql(self, expression: exp.Parameter) -> str: +1344 this = self.sql(expression, "this") +1345 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" +1346 return f"{self.PARAMETER_TOKEN}{this}" +1347 +1348 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: +1349 this = self.sql(expression, "this") +1350 kind = expression.text("kind") +1351 if kind: +1352 kind = f"{kind}." +1353 return f"@@{kind}{this}" +1354 +1355 def placeholder_sql(self, expression: exp.Placeholder) -> str: +1356 return f":{expression.name}" if expression.name else "?" +1357 +1358 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: +1359 alias = self.sql(expression, "alias") +1360 alias = f"{sep}{alias}" if alias else "" +1361 +1362 sql = self.query_modifiers( +1363 expression, +1364 self.wrap(expression), +1365 self.expressions(expression, key="pivots", sep=" "), +1366 alias, +1367 ) +1368 +1369 return self.prepend_ctes(expression, sql) +1370 +1371 def qualify_sql(self, expression: exp.Qualify) -> str: +1372 this = self.indent(self.sql(expression, "this")) +1373 return f"{self.seg('QUALIFY')}{self.sep()}{this}" +1374 +1375 def union_sql(self, expression: exp.Union) -> str: +1376 return self.prepend_ctes( +1377 expression, +1378 self.set_operation(expression, self.union_op(expression)), +1379 ) +1380 +1381 def union_op(self, expression: exp.Union) -> str: +1382 kind = " DISTINCT" if self.EXPLICIT_UNION else "" +1383 kind = kind if expression.args.get("distinct") else " ALL" +1384 return f"UNION{kind}" +1385 +1386 def unnest_sql(self, expression: exp.Unnest) -> str: +1387 args = self.expressions(expression, flat=True) +1388 alias = expression.args.get("alias") +1389 if alias and self.unnest_column_only: +1390 columns = alias.columns +1391 alias = self.sql(columns[0]) if columns else "" +1392 else: +1393 alias = self.sql(expression, "alias") +1394 alias = f" AS {alias}" if alias else alias +1395 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" +1396 offset = expression.args.get("offset") +1397 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" +1398 return f"UNNEST({args}){ordinality}{alias}{offset}" +1399 +1400 def where_sql(self, expression: exp.Where) -> str: +1401 this = self.indent(self.sql(expression, "this")) +1402 return f"{self.seg('WHERE')}{self.sep()}{this}" +1403 +1404 def window_sql(self, expression: exp.Window) -> str: +1405 this = self.sql(expression, "this") +1406 +1407 partition = self.partition_by_sql(expression) +1408 +1409 order = expression.args.get("order") +1410 order_sql = self.order_sql(order, flat=True) if order else "" +1411 +1412 partition_sql = partition + " " if partition and order else partition +1413 +1414 spec = expression.args.get("spec") +1415 spec_sql = " " + self.window_spec_sql(spec) if spec else "" +1416 +1417 alias = self.sql(expression, "alias") +1418 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" +1419 +1420 if not partition and not order and not spec and alias: +1421 return f"{this} {alias}" +1422 +1423 window_args = alias + partition_sql + order_sql + spec_sql +1424 +1425 return f"{this} ({window_args.strip()})" +1426 +1427 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: +1428 partition = self.expressions(expression, key="partition_by", flat=True) +1429 return f"PARTITION BY {partition}" if partition else "" +1430 +1431 def window_spec_sql(self, expression: exp.WindowSpec) -> str: +1432 kind = self.sql(expression, "kind") +1433 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") +1434 end = ( +1435 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") +1436 or "CURRENT ROW" +1437 ) +1438 return f"{kind} BETWEEN {start} AND {end}" +1439 +1440 def withingroup_sql(self, expression: exp.WithinGroup) -> str: +1441 this = self.sql(expression, "this") +1442 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space +1443 return f"{this} WITHIN GROUP ({expression_sql})" +1444 +1445 def between_sql(self, expression: exp.Between) -> str: +1446 this = self.sql(expression, "this") +1447 low = self.sql(expression, "low") +1448 high = self.sql(expression, "high") +1449 return f"{this} BETWEEN {low} AND {high}" +1450 +1451 def bracket_sql(self, expression: exp.Bracket) -> str: +1452 expressions = apply_index_offset(expression.expressions, self.index_offset) +1453 expressions_sql = ", ".join(self.sql(e) for e in expressions) +1454 +1455 return f"{self.sql(expression, 'this')}[{expressions_sql}]" +1456 +1457 def all_sql(self, expression: exp.All) -> str: +1458 return f"ALL {self.wrap(expression)}" +1459 +1460 def any_sql(self, expression: exp.Any) -> str: +1461 this = self.sql(expression, "this") +1462 if isinstance(expression.this, exp.Subqueryable): +1463 this = self.wrap(this) +1464 return f"ANY {this}" +1465 +1466 def exists_sql(self, expression: exp.Exists) -> str: +1467 return f"EXISTS{self.wrap(expression)}" +1468 +1469 def case_sql(self, expression: exp.Case) -> str: +1470 this = self.sql(expression, "this") +1471 statements = [f"CASE {this}" if this else "CASE"] +1472 +1473 for e in expression.args["ifs"]: +1474 statements.append(f"WHEN {self.sql(e, 'this')}") +1475 statements.append(f"THEN {self.sql(e, 'true')}") +1476 +1477 default = self.sql(expression, "default") +1478 +1479 if default: +1480 statements.append(f"ELSE {default}") +1481 +1482 statements.append("END") +1483 +1484 if self.pretty and self.text_width(statements) > self._max_text_width: +1485 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1486 +1487 return " ".join(statements) +1488 +1489 def constraint_sql(self, expression: exp.Constraint) -> str: +1490 this = self.sql(expression, "this") +1491 expressions = self.expressions(expression, flat=True) +1492 return f"CONSTRAINT {this} {expressions}" +1493 +1494 def extract_sql(self, expression: exp.Extract) -> str: +1495 this = self.sql(expression, "this") +1496 expression_sql = self.sql(expression, "expression") +1497 return f"EXTRACT({this} FROM {expression_sql})" +1498 +1499 def trim_sql(self, expression: exp.Trim) -> str: +1500 trim_type = self.sql(expression, "position") +1501 +1502 if trim_type == "LEADING": +1503 return self.func("LTRIM", expression.this) +1504 elif trim_type == "TRAILING": +1505 return self.func("RTRIM", expression.this) +1506 else: +1507 return self.func("TRIM", expression.this, expression.expression) +1508 +1509 def concat_sql(self, expression: exp.Concat) -> str: +1510 if len(expression.expressions) == 1: +1511 return self.sql(expression.expressions[0]) +1512 return self.function_fallback_sql(expression) +1513 +1514 def check_sql(self, expression: exp.Check) -> str: +1515 this = self.sql(expression, key="this") +1516 return f"CHECK ({this})" +1517 +1518 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: +1519 expressions = self.expressions(expression, flat=True) +1520 reference = self.sql(expression, "reference") +1521 reference = f" {reference}" if reference else "" +1522 delete = self.sql(expression, "delete") +1523 delete = f" ON DELETE {delete}" if delete else "" +1524 update = self.sql(expression, "update") +1525 update = f" ON UPDATE {update}" if update else "" +1526 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" +1527 +1528 def primarykey_sql(self, expression: exp.ForeignKey) -> str: +1529 expressions = self.expressions(expression, flat=True) +1530 options = self.expressions(expression, "options", flat=True, sep=" ") +1531 options = f" {options}" if options else "" +1532 return f"PRIMARY KEY ({expressions}){options}" +1533 +1534 def unique_sql(self, expression: exp.Unique) -> str: +1535 columns = self.expressions(expression, key="expressions") +1536 return f"UNIQUE ({columns})" +1537 +1538 def if_sql(self, expression: exp.If) -> str: +1539 return self.case_sql( +1540 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) +1541 ) +1542 +1543 def in_sql(self, expression: exp.In) -> str: +1544 query = expression.args.get("query") +1545 unnest = expression.args.get("unnest") +1546 field = expression.args.get("field") +1547 is_global = " GLOBAL" if expression.args.get("is_global") else "" +1548 +1549 if query: +1550 in_sql = self.wrap(query) +1551 elif unnest: +1552 in_sql = self.in_unnest_op(unnest) +1553 elif field: +1554 in_sql = self.sql(field) +1555 else: +1556 in_sql = f"({self.expressions(expression, flat=True)})" +1557 +1558 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" +1559 +1560 def in_unnest_op(self, unnest: exp.Unnest) -> str: +1561 return f"(SELECT {self.sql(unnest)})" +1562 +1563 def interval_sql(self, expression: exp.Interval) -> str: +1564 this = expression.args.get("this") +1565 if this: +1566 this = ( +1567 f" {this}" +1568 if isinstance(this, exp.Literal) or isinstance(this, exp.Paren) +1569 else f" ({this})" +1570 ) +1571 else: +1572 this = "" +1573 unit = self.sql(expression, "unit") +1574 unit = f" {unit}" if unit else "" +1575 return f"INTERVAL{this}{unit}" +1576 +1577 def return_sql(self, expression: exp.Return) -> str: +1578 return f"RETURN {self.sql(expression, 'this')}" +1579 +1580 def reference_sql(self, expression: exp.Reference) -> str: +1581 this = self.sql(expression, "this") +1582 expressions = self.expressions(expression, flat=True) +1583 expressions = f"({expressions})" if expressions else "" +1584 options = self.expressions(expression, "options", flat=True, sep=" ") +1585 options = f" {options}" if options else "" +1586 return f"REFERENCES {this}{expressions}{options}" +1587 +1588 def anonymous_sql(self, expression: exp.Anonymous) -> str: +1589 return self.func(expression.name, *expression.expressions) +1590 +1591 def paren_sql(self, expression: exp.Paren) -> str: +1592 if isinstance(expression.unnest(), exp.Select): +1593 sql = self.wrap(expression) +1594 else: +1595 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") +1596 sql = f"({sql}{self.seg(')', sep='')}" +1597 +1598 return self.prepend_ctes(expression, sql) +1599 +1600 def neg_sql(self, expression: exp.Neg) -> str: +1601 # This makes sure we don't convert "- - 5" to "--5", which is a comment +1602 this_sql = self.sql(expression, "this") +1603 sep = " " if this_sql[0] == "-" else "" +1604 return f"-{sep}{this_sql}" +1605 +1606 def not_sql(self, expression: exp.Not) -> str: +1607 return f"NOT {self.sql(expression, 'this')}" +1608 +1609 def alias_sql(self, expression: exp.Alias) -> str: +1610 to_sql = self.sql(expression, "alias") +1611 to_sql = f" AS {to_sql}" if to_sql else "" +1612 return f"{self.sql(expression, 'this')}{to_sql}" +1613 +1614 def aliases_sql(self, expression: exp.Aliases) -> str: +1615 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" +1616 +1617 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: +1618 this = self.sql(expression, "this") +1619 zone = self.sql(expression, "zone") +1620 return f"{this} AT TIME ZONE {zone}" +1621 +1622 def add_sql(self, expression: exp.Add) -> str: +1623 return self.binary(expression, "+") +1624 +1625 def and_sql(self, expression: exp.And) -> str: +1626 return self.connector_sql(expression, "AND") +1627 +1628 def connector_sql(self, expression: exp.Connector, op: str) -> str: +1629 if not self.pretty: +1630 return self.binary(expression, op) +1631 +1632 sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False)) +1633 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " +1634 return f"{sep}{op} ".join(sqls) +1635 +1636 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: +1637 return self.binary(expression, "&") +1638 +1639 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: +1640 return self.binary(expression, "<<") +1641 +1642 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: +1643 return f"~{self.sql(expression, 'this')}" +1644 +1645 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: +1646 return self.binary(expression, "|") +1647 +1648 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: +1649 return self.binary(expression, ">>") +1650 +1651 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: +1652 return self.binary(expression, "^") +1653 +1654 def cast_sql(self, expression: exp.Cast) -> str: +1655 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1656 +1657 def currentdate_sql(self, expression: exp.CurrentDate) -> str: +1658 zone = self.sql(expression, "this") +1659 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" +1660 +1661 def collate_sql(self, expression: exp.Collate) -> str: +1662 return self.binary(expression, "COLLATE") +1663 +1664 def command_sql(self, expression: exp.Command) -> str: +1665 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" +1666 +1667 def comment_sql(self, expression: exp.Comment) -> str: +1668 this = self.sql(expression, "this") +1669 kind = expression.args["kind"] +1670 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " +1671 expression_sql = self.sql(expression, "expression") +1672 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" +1673 +1674 def transaction_sql(self, *_) -> str: +1675 return "BEGIN" +1676 +1677 def commit_sql(self, expression: exp.Commit) -> str: +1678 chain = expression.args.get("chain") +1679 if chain is not None: +1680 chain = " AND CHAIN" if chain else " AND NO CHAIN" +1681 +1682 return f"COMMIT{chain or ''}" +1683 +1684 def rollback_sql(self, expression: exp.Rollback) -> str: +1685 savepoint = expression.args.get("savepoint") +1686 savepoint = f" TO {savepoint}" if savepoint else "" +1687 return f"ROLLBACK{savepoint}" +1688 +1689 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: +1690 this = self.sql(expression, "this") +1691 +1692 dtype = self.sql(expression, "dtype") +1693 if dtype: +1694 collate = self.sql(expression, "collate") +1695 collate = f" COLLATE {collate}" if collate else "" +1696 using = self.sql(expression, "using") +1697 using = f" USING {using}" if using else "" +1698 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" +1699 +1700 default = self.sql(expression, "default") +1701 if default: +1702 return f"ALTER COLUMN {this} SET DEFAULT {default}" +1703 +1704 if not expression.args.get("drop"): +1705 self.unsupported("Unsupported ALTER COLUMN syntax") +1706 +1707 return f"ALTER COLUMN {this} DROP DEFAULT" +1708 +1709 def renametable_sql(self, expression: exp.RenameTable) -> str: +1710 this = self.sql(expression, "this") +1711 return f"RENAME TO {this}" +1712 +1713 def altertable_sql(self, expression: exp.AlterTable) -> str: +1714 actions = expression.args["actions"] +1715 +1716 if isinstance(actions[0], exp.ColumnDef): +1717 actions = self.expressions(expression, "actions", prefix="ADD COLUMN ") +1718 elif isinstance(actions[0], exp.Schema): +1719 actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ") +1720 elif isinstance(actions[0], exp.Delete): +1721 actions = self.expressions(expression, "actions", flat=True) +1722 else: +1723 actions = self.expressions(expression, "actions") +1724 +1725 exists = " IF EXISTS" if expression.args.get("exists") else "" +1726 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" +1727 +1728 def droppartition_sql(self, expression: exp.DropPartition) -> str: +1729 expressions = self.expressions(expression) +1730 exists = " IF EXISTS " if expression.args.get("exists") else " " +1731 return f"DROP{exists}{expressions}" +1732 +1733 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: +1734 this = self.sql(expression, "this") +1735 expression_ = self.sql(expression, "expression") +1736 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" +1737 +1738 enforced = expression.args.get("enforced") +1739 if enforced is not None: +1740 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" +1741 +1742 return f"{add_constraint} {expression_}" +1743 +1744 def distinct_sql(self, expression: exp.Distinct) -> str: +1745 this = self.expressions(expression, flat=True) +1746 this = f" {this}" if this else "" +1747 +1748 on = self.sql(expression, "on") +1749 on = f" ON {on}" if on else "" +1750 return f"DISTINCT{this}{on}" +1751 +1752 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: +1753 return f"{self.sql(expression, 'this')} IGNORE NULLS" +1754 +1755 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: +1756 return f"{self.sql(expression, 'this')} RESPECT NULLS" +1757 +1758 def intdiv_sql(self, expression: exp.IntDiv) -> str: +1759 div = self.binary(expression, "/") +1760 return self.sql(exp.Cast(this=div, to=exp.DataType.build("INT"))) +1761 +1762 def dpipe_sql(self, expression: exp.DPipe) -> str: +1763 return self.binary(expression, "||") +1764 +1765 def div_sql(self, expression: exp.Div) -> str: +1766 div = self.binary(expression, "/") +1767 +1768 if not self.INTEGER_DIVISION: +1769 return self.sql(exp.Cast(this=div, to=exp.DataType.build("INT"))) +1770 +1771 return div +1772 +1773 def floatdiv_sql(self, expression: exp.FloatDiv) -> str: +1774 if self.INTEGER_DIVISION: +1775 this = exp.Cast(this=expression.this, to=exp.DataType.build("DOUBLE")) +1776 return self.div_sql(exp.Div(this=this, expression=expression.expression)) +1777 +1778 return self.binary(expression, "/") +1779 +1780 def overlaps_sql(self, expression: exp.Overlaps) -> str: +1781 return self.binary(expression, "OVERLAPS") +1782 +1783 def distance_sql(self, expression: exp.Distance) -> str: +1784 return self.binary(expression, "<->") +1785 +1786 def dot_sql(self, expression: exp.Dot) -> str: +1787 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" +1788 +1789 def eq_sql(self, expression: exp.EQ) -> str: +1790 return self.binary(expression, "=") +1791 +1792 def escape_sql(self, expression: exp.Escape) -> str: +1793 return self.binary(expression, "ESCAPE") +1794 +1795 def glob_sql(self, expression: exp.Glob) -> str: +1796 return self.binary(expression, "GLOB") +1797 +1798 def gt_sql(self, expression: exp.GT) -> str: +1799 return self.binary(expression, ">") +1800 +1801 def gte_sql(self, expression: exp.GTE) -> str: +1802 return self.binary(expression, ">=") +1803 +1804 def ilike_sql(self, expression: exp.ILike) -> str: +1805 return self.binary(expression, "ILIKE") +1806 +1807 def is_sql(self, expression: exp.Is) -> str: +1808 return self.binary(expression, "IS") +1809 +1810 def like_sql(self, expression: exp.Like) -> str: +1811 return self.binary(expression, "LIKE") +1812 +1813 def similarto_sql(self, expression: exp.SimilarTo) -> str: +1814 return self.binary(expression, "SIMILAR TO") +1815 +1816 def lt_sql(self, expression: exp.LT) -> str: +1817 return self.binary(expression, "<") +1818 +1819 def lte_sql(self, expression: exp.LTE) -> str: +1820 return self.binary(expression, "<=") +1821 +1822 def mod_sql(self, expression: exp.Mod) -> str: +1823 return self.binary(expression, "%") +1824 +1825 def mul_sql(self, expression: exp.Mul) -> str: +1826 return self.binary(expression, "*") +1827 +1828 def neq_sql(self, expression: exp.NEQ) -> str: +1829 return self.binary(expression, "<>") +1830 +1831 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: +1832 return self.binary(expression, "IS NOT DISTINCT FROM") +1833 +1834 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: +1835 return self.binary(expression, "IS DISTINCT FROM") +1836 +1837 def or_sql(self, expression: exp.Or) -> str: +1838 return self.connector_sql(expression, "OR") +1839 +1840 def slice_sql(self, expression: exp.Slice) -> str: +1841 return self.binary(expression, ":") +1842 +1843 def sub_sql(self, expression: exp.Sub) -> str: +1844 return self.binary(expression, "-") +1845 +1846 def trycast_sql(self, expression: exp.TryCast) -> str: +1847 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1848 +1849 def use_sql(self, expression: exp.Use) -> str: +1850 kind = self.sql(expression, "kind") +1851 kind = f" {kind}" if kind else "" +1852 this = self.sql(expression, "this") +1853 this = f" {this}" if this else "" +1854 return f"USE{kind}{this}" +1855 +1856 def binary(self, expression: exp.Binary, op: str) -> str: +1857 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" +1858 +1859 def function_fallback_sql(self, expression: exp.Func) -> str: +1860 args = [] +1861 for arg_value in expression.args.values(): +1862 if isinstance(arg_value, list): +1863 for value in arg_value: +1864 args.append(value) +1865 else: +1866 args.append(arg_value) +1867 +1868 return self.func(expression.sql_name(), *args) +1869 +1870 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: +1871 return f"{self.normalize_func(name)}({self.format_args(*args)})" +1872 +1873 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: +1874 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) +1875 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: +1876 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) +1877 return ", ".join(arg_sqls) +1878 +1879 def text_width(self, args: t.Iterable) -> int: +1880 return sum(len(arg) for arg in args) +1881 +1882 def format_time(self, expression: exp.Expression) -> t.Optional[str]: +1883 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) +1884 +1885 def expressions( +1886 self, +1887 expression: exp.Expression, +1888 key: t.Optional[str] = None, +1889 flat: bool = False, +1890 indent: bool = True, +1891 sep: str = ", ", +1892 prefix: str = "", +1893 ) -> str: +1894 expressions = expression.args.get(key or "expressions") +1895 +1896 if not expressions: +1897 return "" +1898 +1899 if flat: +1900 return sep.join(self.sql(e) for e in expressions) +1901 +1902 num_sqls = len(expressions) +1903 +1904 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly +1905 pad = " " * self.pad +1906 stripped_sep = sep.strip() +1907 +1908 result_sqls = [] +1909 for i, e in enumerate(expressions): +1910 sql = self.sql(e, comment=False) +1911 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" +1912 +1913 if self.pretty: +1914 if self._leading_comma: +1915 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") +1916 else: +1917 result_sqls.append( +1918 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" +1919 ) +1920 else: +1921 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") +1922 +1923 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) +1924 return self.indent(result_sql, skip_first=False) if indent else result_sql +1925 +1926 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: +1927 flat = flat or isinstance(expression.parent, exp.Properties) +1928 expressions_sql = self.expressions(expression, flat=flat) +1929 if flat: +1930 return f"{op} {expressions_sql}" +1931 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" +1932 +1933 def naked_property(self, expression: exp.Property) -> str: +1934 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) +1935 if not property_name: +1936 self.unsupported(f"Unsupported property {expression.__class__.__name__}") +1937 return f"{property_name} {self.sql(expression, 'this')}" +1938 +1939 def set_operation(self, expression: exp.Expression, op: str) -> str: +1940 this = self.sql(expression, "this") +1941 op = self.seg(op) +1942 return self.query_modifiers( +1943 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" +1944 ) +1945 +1946 def tag_sql(self, expression: exp.Tag) -> str: +1947 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" +1948 +1949 def token_sql(self, token_type: TokenType) -> str: +1950 return self.TOKEN_MAPPING.get(token_type, token_type.name) +1951 +1952 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: +1953 this = self.sql(expression, "this") +1954 expressions = self.no_identify(self.expressions, expression) +1955 expressions = ( +1956 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" +1957 ) +1958 return f"{this}{expressions}" +1959 +1960 def joinhint_sql(self, expression: exp.JoinHint) -> str: +1961 this = self.sql(expression, "this") +1962 expressions = self.expressions(expression, flat=True) +1963 return f"{this}({expressions})" +1964 +1965 def kwarg_sql(self, expression: exp.Kwarg) -> str: +1966 return self.binary(expression, "=>") +1967 +1968 def when_sql(self, expression: exp.When) -> str: +1969 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" +1970 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" +1971 condition = self.sql(expression, "condition") +1972 condition = f" AND {condition}" if condition else "" +1973 +1974 then_expression = expression.args.get("then") +1975 if isinstance(then_expression, exp.Insert): +1976 then = f"INSERT {self.sql(then_expression, 'this')}" +1977 if "expression" in then_expression.args: +1978 then += f" VALUES {self.sql(then_expression, 'expression')}" +1979 elif isinstance(then_expression, exp.Update): +1980 if isinstance(then_expression.args.get("expressions"), exp.Star): +1981 then = f"UPDATE {self.sql(then_expression, 'expressions')}" +1982 else: +1983 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" +1984 else: +1985 then = self.sql(then_expression) +1986 return f"WHEN {matched}{source}{condition} THEN {then}" +1987 +1988 def merge_sql(self, expression: exp.Merge) -> str: +1989 this = self.sql(expression, "this") +1990 using = f"USING {self.sql(expression, 'using')}" +1991 on = f"ON {self.sql(expression, 'on')}" +1992 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}"
    @@ -2750,1938 +2749,1937 @@ 60 exp.DateAdd: lambda self, e: self.func( 61 "DATE_ADD", e.this, e.expression, e.args.get("unit") 62 ), - 63 exp.DateDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression), - 64 exp.TsOrDsAdd: lambda self, e: self.func( - 65 "TS_OR_DS_ADD", e.this, e.expression, e.args.get("unit") - 66 ), - 67 exp.VarMap: lambda self, e: self.func("MAP", e.args["keys"], e.args["values"]), - 68 exp.CharacterSetProperty: lambda self, e: f"{'DEFAULT ' if e.args.get('default') else ''}CHARACTER SET={self.sql(e, 'this')}", - 69 exp.ExecuteAsProperty: lambda self, e: self.naked_property(e), - 70 exp.ExternalProperty: lambda self, e: "EXTERNAL", - 71 exp.LanguageProperty: lambda self, e: self.naked_property(e), - 72 exp.LocationProperty: lambda self, e: self.naked_property(e), - 73 exp.LogProperty: lambda self, e: f"{'NO ' if e.args.get('no') else ''}LOG", - 74 exp.MaterializedProperty: lambda self, e: "MATERIALIZED", - 75 exp.NoPrimaryIndexProperty: lambda self, e: "NO PRIMARY INDEX", - 76 exp.OnCommitProperty: lambda self, e: "ON COMMIT PRESERVE ROWS", - 77 exp.ReturnsProperty: lambda self, e: self.naked_property(e), - 78 exp.SetProperty: lambda self, e: f"{'MULTI' if e.args.get('multi') else ''}SET", - 79 exp.SqlSecurityProperty: lambda self, e: f"SQL SECURITY {'DEFINER' if e.args.get('definer') else 'INVOKER'}", - 80 exp.TemporaryProperty: lambda self, e: f"{'GLOBAL ' if e.args.get('global_') else ''}TEMPORARY", - 81 exp.TransientProperty: lambda self, e: "TRANSIENT", - 82 exp.VolatilityProperty: lambda self, e: e.name, - 83 exp.WithJournalTableProperty: lambda self, e: f"WITH JOURNAL TABLE={self.sql(e, 'this')}", - 84 exp.CaseSpecificColumnConstraint: lambda self, e: f"{'NOT ' if e.args.get('not_') else ''}CASESPECIFIC", - 85 exp.CharacterSetColumnConstraint: lambda self, e: f"CHARACTER SET {self.sql(e, 'this')}", - 86 exp.DateFormatColumnConstraint: lambda self, e: f"FORMAT {self.sql(e, 'this')}", - 87 exp.UppercaseColumnConstraint: lambda self, e: f"UPPERCASE", - 88 exp.TitleColumnConstraint: lambda self, e: f"TITLE {self.sql(e, 'this')}", - 89 exp.PathColumnConstraint: lambda self, e: f"PATH {self.sql(e, 'this')}", - 90 exp.CheckColumnConstraint: lambda self, e: f"CHECK ({self.sql(e, 'this')})", - 91 exp.CommentColumnConstraint: lambda self, e: f"COMMENT {self.sql(e, 'this')}", - 92 exp.CollateColumnConstraint: lambda self, e: f"COLLATE {self.sql(e, 'this')}", - 93 exp.EncodeColumnConstraint: lambda self, e: f"ENCODE {self.sql(e, 'this')}", - 94 exp.DefaultColumnConstraint: lambda self, e: f"DEFAULT {self.sql(e, 'this')}", - 95 exp.InlineLengthColumnConstraint: lambda self, e: f"INLINE LENGTH {self.sql(e, 'this')}", - 96 } - 97 - 98 # Whether or not null ordering is supported in order by - 99 NULL_ORDERING_SUPPORTED = True - 100 - 101 # Whether or not locking reads (i.e. SELECT ... FOR UPDATE/SHARE) are supported - 102 LOCKING_READS_SUPPORTED = False - 103 - 104 # Always do union distinct or union all - 105 EXPLICIT_UNION = False - 106 - 107 # Wrap derived values in parens, usually standard but spark doesn't support it - 108 WRAP_DERIVED_VALUES = True - 109 - 110 # Whether or not create function uses an AS before the RETURN - 111 CREATE_FUNCTION_RETURN_AS = True - 112 - 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 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 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.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 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 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 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 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 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 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 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 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 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) - 629 - 630 def describe_sql(self, expression: exp.Describe) -> str: - 631 return f"DESCRIBE {self.sql(expression, 'this')}" - 632 - 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 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}" - 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 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 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 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 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 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 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 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 - 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 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 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 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 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 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 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 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 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 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 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 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.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 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 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 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()})" -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 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 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 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 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 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 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 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 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 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 add_sql(self, expression: exp.Add) -> str: -1625 return self.binary(expression, "+") -1626 -1627 def and_sql(self, expression: exp.And) -> str: -1628 return self.connector_sql(expression, "AND") -1629 -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 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 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 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 ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: -1755 return f"{self.sql(expression, 'this')} IGNORE NULLS" -1756 -1757 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: -1758 return f"{self.sql(expression, 'this')} RESPECT NULLS" -1759 -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 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 nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: -1837 return self.binary(expression, "IS DISTINCT FROM") -1838 -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 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 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 # 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 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=' ')}" + 63 exp.TsOrDsAdd: lambda self, e: self.func( + 64 "TS_OR_DS_ADD", e.this, e.expression, e.args.get("unit") + 65 ), + 66 exp.VarMap: lambda self, e: self.func("MAP", e.args["keys"], e.args["values"]), + 67 exp.CharacterSetProperty: lambda self, e: f"{'DEFAULT ' if e.args.get('default') else ''}CHARACTER SET={self.sql(e, 'this')}", + 68 exp.ExecuteAsProperty: lambda self, e: self.naked_property(e), + 69 exp.ExternalProperty: lambda self, e: "EXTERNAL", + 70 exp.LanguageProperty: lambda self, e: self.naked_property(e), + 71 exp.LocationProperty: lambda self, e: self.naked_property(e), + 72 exp.LogProperty: lambda self, e: f"{'NO ' if e.args.get('no') else ''}LOG", + 73 exp.MaterializedProperty: lambda self, e: "MATERIALIZED", + 74 exp.NoPrimaryIndexProperty: lambda self, e: "NO PRIMARY INDEX", + 75 exp.OnCommitProperty: lambda self, e: "ON COMMIT PRESERVE ROWS", + 76 exp.ReturnsProperty: lambda self, e: self.naked_property(e), + 77 exp.SetProperty: lambda self, e: f"{'MULTI' if e.args.get('multi') else ''}SET", + 78 exp.SqlSecurityProperty: lambda self, e: f"SQL SECURITY {'DEFINER' if e.args.get('definer') else 'INVOKER'}", + 79 exp.TemporaryProperty: lambda self, e: f"{'GLOBAL ' if e.args.get('global_') else ''}TEMPORARY", + 80 exp.TransientProperty: lambda self, e: "TRANSIENT", + 81 exp.VolatilityProperty: lambda self, e: e.name, + 82 exp.WithJournalTableProperty: lambda self, e: f"WITH JOURNAL TABLE={self.sql(e, 'this')}", + 83 exp.CaseSpecificColumnConstraint: lambda self, e: f"{'NOT ' if e.args.get('not_') else ''}CASESPECIFIC", + 84 exp.CharacterSetColumnConstraint: lambda self, e: f"CHARACTER SET {self.sql(e, 'this')}", + 85 exp.DateFormatColumnConstraint: lambda self, e: f"FORMAT {self.sql(e, 'this')}", + 86 exp.UppercaseColumnConstraint: lambda self, e: f"UPPERCASE", + 87 exp.TitleColumnConstraint: lambda self, e: f"TITLE {self.sql(e, 'this')}", + 88 exp.PathColumnConstraint: lambda self, e: f"PATH {self.sql(e, 'this')}", + 89 exp.CheckColumnConstraint: lambda self, e: f"CHECK ({self.sql(e, 'this')})", + 90 exp.CommentColumnConstraint: lambda self, e: f"COMMENT {self.sql(e, 'this')}", + 91 exp.CollateColumnConstraint: lambda self, e: f"COLLATE {self.sql(e, 'this')}", + 92 exp.EncodeColumnConstraint: lambda self, e: f"ENCODE {self.sql(e, 'this')}", + 93 exp.DefaultColumnConstraint: lambda self, e: f"DEFAULT {self.sql(e, 'this')}", + 94 exp.InlineLengthColumnConstraint: lambda self, e: f"INLINE LENGTH {self.sql(e, 'this')}", + 95 } + 96 + 97 # Whether or not null ordering is supported in order by + 98 NULL_ORDERING_SUPPORTED = True + 99 + 100 # Whether or not locking reads (i.e. SELECT ... FOR UPDATE/SHARE) are supported + 101 LOCKING_READS_SUPPORTED = False + 102 + 103 # Always do union distinct or union all + 104 EXPLICIT_UNION = False + 105 + 106 # Wrap derived values in parens, usually standard but spark doesn't support it + 107 WRAP_DERIVED_VALUES = True + 108 + 109 # Whether or not create function uses an AS before the RETURN + 110 CREATE_FUNCTION_RETURN_AS = True + 111 + 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 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 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.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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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.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 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 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 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 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 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 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 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 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 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 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 = self.sql(expression, "unit") +1575 unit = f" {unit}" if unit else "" +1576 return f"INTERVAL{this}{unit}" +1577 +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 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 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 add_sql(self, expression: exp.Add) -> str: +1624 return self.binary(expression, "+") +1625 +1626 def and_sql(self, expression: exp.And) -> str: +1627 return self.connector_sql(expression, "AND") +1628 +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 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 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 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 ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: +1754 return f"{self.sql(expression, 'this')} IGNORE NULLS" +1755 +1756 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: +1757 return f"{self.sql(expression, 'this')} RESPECT NULLS" +1758 +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 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 nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: +1836 return self.binary(expression, "IS DISTINCT FROM") +1837 +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 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 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 # 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 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=' ')}"
    @@ -4740,60 +4738,60 @@ Default: True
    -
    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
    +            
    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
     
    @@ -4811,31 +4809,31 @@ Default: True
    -
    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        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.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
    +            
    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        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.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
     
    @@ -4861,10 +4859,10 @@ Default: True
    -
    301    def unsupported(self, message: str) -> None:
    -302        if self.unsupported_level == ErrorLevel.IMMEDIATE:
    -303            raise UnsupportedError(message)
    -304        self.unsupported_messages.append(message)
    +            
    300    def unsupported(self, message: str) -> None:
    +301        if self.unsupported_level == ErrorLevel.IMMEDIATE:
    +302            raise UnsupportedError(message)
    +303        self.unsupported_messages.append(message)
     
    @@ -4882,8 +4880,8 @@ Default: True
    -
    306    def sep(self, sep: str = " ") -> str:
    -307        return f"{sep.strip()}\n" if self.pretty else sep
    +            
    305    def sep(self, sep: str = " ") -> str:
    +306        return f"{sep.strip()}\n" if self.pretty else sep
     
    @@ -4901,8 +4899,8 @@ Default: True
    -
    309    def seg(self, sql: str, sep: str = " ") -> str:
    -310        return f"{self.sep(sep)}{sql}"
    +            
    308    def seg(self, sql: str, sep: str = " ") -> str:
    +309        return f"{self.sep(sep)}{sql}"
     
    @@ -4920,10 +4918,10 @@ Default: True
    -
    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
    +            
    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
     
    @@ -4941,24 +4939,24 @@ Default: True
    -
    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        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}"
    +            
    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        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}"
     
    @@ -4976,15 +4974,15 @@ Default: True
    -
    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='')}"
    +            
    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='')}"
     
    @@ -5002,12 +5000,12 @@ Default: True
    -
    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
    +            
    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
     
    @@ -5025,12 +5023,12 @@ Default: True
    -
    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
    +            
    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
     
    @@ -5048,26 +5046,26 @@ Default: True
    -
    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        )
    +            
    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        )
     
    @@ -5085,42 +5083,42 @@ Default: True
    -
    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        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
    +            
    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        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
     
    @@ -5138,10 +5136,10 @@ Default: True
    -
    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}"
    +            
    417    def uncache_sql(self, expression: exp.Uncache) -> str:
    +418        table = self.sql(expression, "this")
    +419        exists_sql = " IF EXISTS" if expression.args.get("exists") else ""
    +420        return f"UNCACHE TABLE{exists_sql} {table}"
     
    @@ -5159,15 +5157,15 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -5185,11 +5183,11 @@ Default: True
    -
    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')}"
    +            
    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')}"
     
    @@ -5207,17 +5205,17 @@ Default: True
    -
    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        )
    +            
    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        )
     
    @@ -5235,15 +5233,15 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -5261,10 +5259,10 @@ Default: True
    -
    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
    +            
    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
     
    @@ -5282,8 +5280,8 @@ Default: True
    -
    466    def autoincrementcolumnconstraint_sql(self, _) -> str:
    -467        return self.token_sql(TokenType.AUTO_INCREMENT)
    +            
    465    def autoincrementcolumnconstraint_sql(self, _) -> str:
    +466        return self.token_sql(TokenType.AUTO_INCREMENT)
     
    @@ -5301,13 +5299,13 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -5325,30 +5323,30 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -5366,8 +5364,8 @@ Default: True
    -
    502    def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str:
    -503        return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL"
    +            
    501    def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str:
    +502        return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL"
     
    @@ -5385,11 +5383,11 @@ Default: True
    -
    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"
    +            
    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"
     
    @@ -5407,8 +5405,8 @@ Default: True
    -
    511    def uniquecolumnconstraint_sql(self, _) -> str:
    -512        return "UNIQUE"
    +            
    510    def uniquecolumnconstraint_sql(self, _) -> str:
    +511        return "UNIQUE"
     
    @@ -5426,121 +5424,121 @@ Default: True
    -
    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        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)
    +            
    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        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        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)
     
    @@ -5558,8 +5556,8 @@ Default: True
    -
    630    def describe_sql(self, expression: exp.Describe) -> str:
    -631        return f"DESCRIBE {self.sql(expression, 'this')}"
    +            
    629    def describe_sql(self, expression: exp.Describe) -> str:
    +630        return f"DESCRIBE {self.sql(expression, 'this')}"
     
    @@ -5577,11 +5575,11 @@ Default: True
    -
    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
    +            
    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
     
    @@ -5599,11 +5597,11 @@ Default: True
    -
    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}"
    +            
    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        return f"WITH {recursive}{sql}"
     
    @@ -5621,9 +5619,9 @@ Default: True
    -
    645    def cte_sql(self, expression: exp.CTE) -> str:
    -646        alias = self.sql(expression, "alias")
    -647        return f"{alias} AS {self.wrap(expression)}"
    +            
    644    def cte_sql(self, expression: exp.CTE) -> str:
    +645        alias = self.sql(expression, "alias")
    +646        return f"{alias} AS {self.wrap(expression)}"
     
    @@ -5641,11 +5639,11 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -5663,8 +5661,8 @@ Default: True
    -
    655    def bitstring_sql(self, expression: exp.BitString) -> str:
    -656        return self.sql(expression, "this")
    +            
    654    def bitstring_sql(self, expression: exp.BitString) -> str:
    +655        return self.sql(expression, "this")
     
    @@ -5682,8 +5680,8 @@ Default: True
    -
    658    def hexstring_sql(self, expression: exp.HexString) -> str:
    -659        return self.sql(expression, "this")
    +            
    657    def hexstring_sql(self, expression: exp.HexString) -> str:
    +658        return self.sql(expression, "this")
     
    @@ -5701,24 +5699,24 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -5736,11 +5734,11 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -5758,18 +5756,18 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -5787,14 +5785,14 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -5812,11 +5810,11 @@ Default: True
    -
    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        )
    +            
    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        )
     
    @@ -5834,8 +5832,8 @@ Default: True
    -
    714    def except_op(self, expression: exp.Except) -> str:
    -715        return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}"
    +            
    713    def except_op(self, expression: exp.Except) -> str:
    +714        return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}"
     
    @@ -5853,12 +5851,12 @@ Default: True
    -
    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"
    +            
    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"
     
    @@ -5876,10 +5874,10 @@ Default: True
    -
    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})"
    +            
    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})"
     
    @@ -5897,10 +5895,10 @@ Default: True
    -
    729    def hint_sql(self, expression: exp.Hint) -> str:
    -730        if self.sql(expression, "this"):
    -731            self.unsupported("Hints are not supported")
    -732        return ""
    +            
    728    def hint_sql(self, expression: exp.Hint) -> str:
    +729        if self.sql(expression, "this"):
    +730            self.unsupported("Hints are not supported")
    +731        return ""
     
    @@ -5918,11 +5916,11 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -5940,13 +5938,13 @@ Default: True
    -
    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
    +            
    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
     
    @@ -5964,8 +5962,8 @@ Default: True
    -
    748    def national_sql(self, expression: exp.National) -> str:
    -749        return f"N{self.sql(expression, 'this')}"
    +            
    747    def national_sql(self, expression: exp.National) -> str:
    +748        return f"N{self.sql(expression, 'this')}"
     
    @@ -5983,8 +5981,8 @@ Default: True
    -
    751    def partition_sql(self, expression: exp.Partition) -> str:
    -752        return f"PARTITION({self.expressions(expression)})"
    +            
    750    def partition_sql(self, expression: exp.Partition) -> str:
    +751        return f"PARTITION({self.expressions(expression)})"
     
    @@ -6002,20 +6000,20 @@ Default: True
    -
    754    def properties_sql(self, expression: exp.Properties) -> str:
    -755        root_properties = []
    -756        with_properties = []
    -757
    -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))
    +            
    753    def properties_sql(self, expression: exp.Properties) -> str:
    +754        root_properties = []
    +755        with_properties = []
    +756
    +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))
     
    @@ -6033,10 +6031,10 @@ Default: True
    -
    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 ""
    +            
    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 ""
     
    @@ -6054,19 +6052,19 @@ Default: True
    -
    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 ""
    +            
    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 ""
     
    @@ -6084,8 +6082,8 @@ Default: True
    -
    788    def with_properties(self, properties: exp.Properties) -> str:
    -789        return self.properties(properties, prefix=self.seg("WITH"))
    +            
    787    def with_properties(self, properties: exp.Properties) -> str:
    +788        return self.properties(properties, prefix=self.seg("WITH"))
     
    @@ -6103,33 +6101,33 @@ Default: True
    -
    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
    +            
    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        return properties_locs
     
    @@ -6147,16 +6145,16 @@ Default: True
    -
    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')}"
    +            
    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        return f"{property_name}={self.sql(expression, 'this')}"
     
    @@ -6174,10 +6172,10 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6195,10 +6193,10 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6216,11 +6214,11 @@ Default: True
    -
    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"
    +            
    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"
     
    @@ -6238,10 +6236,10 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6259,13 +6257,13 @@ Default: True
    -
    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"
    +            
    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"
     
    @@ -6283,14 +6281,14 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6308,14 +6306,14 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6333,21 +6331,21 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6365,24 +6363,24 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6400,20 +6398,20 @@ Default: True
    -
    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_}"
    +            
    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_}"
     
    @@ -6431,13 +6429,13 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6455,13 +6453,13 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6479,27 +6477,27 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -6517,11 +6515,11 @@ Default: True
    -
    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        )
    +            
    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        )
     
    @@ -6539,8 +6537,8 @@ Default: True
    -
    971    def intersect_op(self, expression: exp.Intersect) -> str:
    -972        return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}"
    +            
    970    def intersect_op(self, expression: exp.Intersect) -> str:
    +971        return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}"
     
    @@ -6558,8 +6556,8 @@ Default: True
    -
    974    def introducer_sql(self, expression: exp.Introducer) -> str:
    -975        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
    +            
    973    def introducer_sql(self, expression: exp.Introducer) -> str:
    +974        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
     
    @@ -6577,8 +6575,8 @@ Default: True
    -
    977    def pseudotype_sql(self, expression: exp.PseudoType) -> str:
    -978        return expression.name.upper()
    +            
    976    def pseudotype_sql(self, expression: exp.PseudoType) -> str:
    +977        return expression.name.upper()
     
    @@ -6596,8 +6594,8 @@ Default: True
    -
    980    def returning_sql(self, expression: exp.Returning) -> str:
    -981        return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}"
    +            
    979    def returning_sql(self, expression: exp.Returning) -> str:
    +980        return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}"
     
    @@ -6615,20 +6613,20 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6646,28 +6644,28 @@ Default: True
    -
     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}"
    +            
     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}"
     
    @@ -6685,29 +6683,29 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6725,15 +6723,15 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6751,8 +6749,8 @@ Default: True
    -
    1055    def tuple_sql(self, expression: exp.Tuple) -> str:
    -1056        return f"({self.expressions(expression, flat=True)})"
    +            
    1054    def tuple_sql(self, expression: exp.Tuple) -> str:
    +1055        return f"({self.expressions(expression, flat=True)})"
     
    @@ -6770,14 +6768,14 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -6795,16 +6793,16 @@ Default: True
    -
    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
    +            
    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
     
    @@ -6822,8 +6820,8 @@ Default: True
    -
    1078    def var_sql(self, expression: exp.Var) -> str:
    -1079        return self.sql(expression, "this")
    +            
    1077    def var_sql(self, expression: exp.Var) -> str:
    +1078        return self.sql(expression, "this")
     
    @@ -6841,10 +6839,10 @@ Default: True
    -
    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')}"
    +            
    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')}"
     
    @@ -6862,9 +6860,9 @@ Default: True
    -
    1086    def from_sql(self, expression: exp.From) -> str:
    -1087        expressions = self.expressions(expression, flat=True)
    -1088        return f"{self.seg('FROM')} {expressions}"
    +            
    1085    def from_sql(self, expression: exp.From) -> str:
    +1086        expressions = self.expressions(expression, flat=True)
    +1087        return f"{self.seg('FROM')} {expressions}"
     
    @@ -6882,33 +6880,33 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6926,9 +6924,9 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6946,36 +6944,36 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -6993,10 +6991,10 @@ Default: True
    -
    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')}"
    +            
    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')}"
     
    @@ -7014,23 +7012,23 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7048,9 +7046,9 @@ Default: True
    -
    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')}"
    +            
    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')}"
     
    @@ -7068,9 +7066,9 @@ Default: True
    -
    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')}"
    +            
    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')}"
     
    @@ -7088,13 +7086,13 @@ Default: True
    -
    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 ""
    +            
    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 ""
     
    @@ -7112,14 +7110,14 @@ Default: True
    -
    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
    +            
    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
     
    @@ -7137,18 +7135,18 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7166,8 +7164,8 @@ Default: True
    -
    1214    def null_sql(self, *_) -> str:
    -1215        return "NULL"
    +            
    1213    def null_sql(self, *_) -> str:
    +1214        return "NULL"
     
    @@ -7185,8 +7183,8 @@ Default: True
    -
    1217    def boolean_sql(self, expression: exp.Boolean) -> str:
    -1218        return "TRUE" if expression.this else "FALSE"
    +            
    1216    def boolean_sql(self, expression: exp.Boolean) -> str:
    +1217        return "TRUE" if expression.this else "FALSE"
     
    @@ -7204,10 +7202,10 @@ Default: True
    -
    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
    +            
    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
     
    @@ -7225,8 +7223,8 @@ Default: True
    -
    1225    def cluster_sql(self, expression: exp.Cluster) -> str:
    -1226        return self.op_expressions("CLUSTER BY", expression)
    +            
    1224    def cluster_sql(self, expression: exp.Cluster) -> str:
    +1225        return self.op_expressions("CLUSTER BY", expression)
     
    @@ -7244,8 +7242,8 @@ Default: True
    -
    1228    def distribute_sql(self, expression: exp.Distribute) -> str:
    -1229        return self.op_expressions("DISTRIBUTE BY", expression)
    +            
    1227    def distribute_sql(self, expression: exp.Distribute) -> str:
    +1228        return self.op_expressions("DISTRIBUTE BY", expression)
     
    @@ -7263,8 +7261,8 @@ Default: True
    -
    1231    def sort_sql(self, expression: exp.Sort) -> str:
    -1232        return self.op_expressions("SORT BY", expression)
    +            
    1230    def sort_sql(self, expression: exp.Sort) -> str:
    +1231        return self.op_expressions("SORT BY", expression)
     
    @@ -7282,36 +7280,36 @@ Default: True
    -
    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        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}"
    +            
    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        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}"
     
    @@ -7329,31 +7327,31 @@ Default: True
    -
    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)}"
    +            
    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)}"
     
    @@ -7371,29 +7369,29 @@ Default: True
    -
    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        )
    +            
    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        )
     
    @@ -7411,19 +7409,19 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -7441,11 +7439,11 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7463,12 +7461,12 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7486,8 +7484,8 @@ Default: True
    -
    1342    def structkwarg_sql(self, expression: exp.StructKwarg) -> str:
    -1343        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
    +            
    1341    def structkwarg_sql(self, expression: exp.StructKwarg) -> str:
    +1342        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
     
    @@ -7505,10 +7503,10 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7526,12 +7524,12 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7549,8 +7547,8 @@ Default: True
    -
    1357    def placeholder_sql(self, expression: exp.Placeholder) -> str:
    -1358        return f":{expression.name}" if expression.name else "?"
    +            
    1356    def placeholder_sql(self, expression: exp.Placeholder) -> str:
    +1357        return f":{expression.name}" if expression.name else "?"
     
    @@ -7568,18 +7566,18 @@ Default: True
    -
    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)
    +            
    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.wrap(expression),
    +1366            self.expressions(expression, key="pivots", sep=" "),
    +1367            alias,
    +1368        )
    +1369
    +1370        return self.prepend_ctes(expression, sql)
     
    @@ -7597,9 +7595,9 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7617,11 +7615,11 @@ Default: True
    -
    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        )
    +            
    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        )
     
    @@ -7639,10 +7637,10 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7660,19 +7658,19 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7690,9 +7688,9 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7710,28 +7708,28 @@ Default: True
    -
    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        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()})"
    +            
    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        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        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()})"
     
    @@ -7749,9 +7747,9 @@ Default: True
    -
    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 ""
    +            
    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 ""
     
    @@ -7769,14 +7767,14 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7794,10 +7792,10 @@ Default: True
    -
    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})"
    +            
    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})"
     
    @@ -7815,11 +7813,11 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7837,11 +7835,11 @@ Default: True
    -
    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}]"
    +            
    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        return f"{self.sql(expression, 'this')}[{expressions_sql}]"
     
    @@ -7859,8 +7857,8 @@ Default: True
    -
    1459    def all_sql(self, expression: exp.All) -> str:
    -1460        return f"ALL {self.wrap(expression)}"
    +            
    1458    def all_sql(self, expression: exp.All) -> str:
    +1459        return f"ALL {self.wrap(expression)}"
     
    @@ -7878,11 +7876,11 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7900,8 +7898,8 @@ Default: True
    -
    1468    def exists_sql(self, expression: exp.Exists) -> str:
    -1469        return f"EXISTS{self.wrap(expression)}"
    +            
    1467    def exists_sql(self, expression: exp.Exists) -> str:
    +1468        return f"EXISTS{self.wrap(expression)}"
     
    @@ -7919,25 +7917,25 @@ Default: 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        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)
    +            
    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        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)
     
    @@ -7955,10 +7953,10 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -7976,10 +7974,10 @@ Default: True
    -
    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})"
    +            
    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})"
     
    @@ -7997,15 +7995,15 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -8023,10 +8021,10 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -8044,9 +8042,9 @@ Default: True
    -
    1516    def check_sql(self, expression: exp.Check) -> str:
    -1517        this = self.sql(expression, key="this")
    -1518        return f"CHECK ({this})"
    +            
    1515    def check_sql(self, expression: exp.Check) -> str:
    +1516        this = self.sql(expression, key="this")
    +1517        return f"CHECK ({this})"
     
    @@ -8064,15 +8062,15 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8090,11 +8088,11 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8112,9 +8110,9 @@ Default: True
    -
    1536    def unique_sql(self, expression: exp.Unique) -> str:
    -1537        columns = self.expressions(expression, key="expressions")
    -1538        return f"UNIQUE ({columns})"
    +            
    1535    def unique_sql(self, expression: exp.Unique) -> str:
    +1536        columns = self.expressions(expression, key="expressions")
    +1537        return f"UNIQUE ({columns})"
     
    @@ -8132,10 +8130,10 @@ Default: True
    -
    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        )
    +            
    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        )
     
    @@ -8153,22 +8151,22 @@ Default: True
    -
    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}"
    +            
    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        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}"
     
    @@ -8186,8 +8184,8 @@ Default: True
    -
    1562    def in_unnest_op(self, unnest: exp.Unnest) -> str:
    -1563        return f"(SELECT {self.sql(unnest)})"
    +            
    1561    def in_unnest_op(self, unnest: exp.Unnest) -> str:
    +1562        return f"(SELECT {self.sql(unnest)})"
     
    @@ -8205,19 +8203,19 @@ Default: True
    -
    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}"
    +            
    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 = self.sql(expression, "unit")
    +1575        unit = f" {unit}" if unit else ""
    +1576        return f"INTERVAL{this}{unit}"
     
    @@ -8235,8 +8233,8 @@ Default: True
    -
    1579    def return_sql(self, expression: exp.Return) -> str:
    -1580        return f"RETURN {self.sql(expression, 'this')}"
    +            
    1578    def return_sql(self, expression: exp.Return) -> str:
    +1579        return f"RETURN {self.sql(expression, 'this')}"
     
    @@ -8254,13 +8252,13 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8278,8 +8276,8 @@ Default: True
    -
    1590    def anonymous_sql(self, expression: exp.Anonymous) -> str:
    -1591        return self.func(expression.name, *expression.expressions)
    +            
    1589    def anonymous_sql(self, expression: exp.Anonymous) -> str:
    +1590        return self.func(expression.name, *expression.expressions)
     
    @@ -8297,14 +8295,14 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -8322,11 +8320,11 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8344,8 +8342,8 @@ Default: True
    -
    1608    def not_sql(self, expression: exp.Not) -> str:
    -1609        return f"NOT {self.sql(expression, 'this')}"
    +            
    1607    def not_sql(self, expression: exp.Not) -> str:
    +1608        return f"NOT {self.sql(expression, 'this')}"
     
    @@ -8363,10 +8361,10 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8384,8 +8382,8 @@ Default: True
    -
    1616    def aliases_sql(self, expression: exp.Aliases) -> str:
    -1617        return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})"
    +            
    1615    def aliases_sql(self, expression: exp.Aliases) -> str:
    +1616        return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})"
     
    @@ -8403,10 +8401,10 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8424,8 +8422,8 @@ Default: True
    -
    1624    def add_sql(self, expression: exp.Add) -> str:
    -1625        return self.binary(expression, "+")
    +            
    1623    def add_sql(self, expression: exp.Add) -> str:
    +1624        return self.binary(expression, "+")
     
    @@ -8443,8 +8441,8 @@ Default: True
    -
    1627    def and_sql(self, expression: exp.And) -> str:
    -1628        return self.connector_sql(expression, "AND")
    +            
    1626    def and_sql(self, expression: exp.And) -> str:
    +1627        return self.connector_sql(expression, "AND")
     
    @@ -8462,13 +8460,13 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -8486,8 +8484,8 @@ Default: True
    -
    1638    def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str:
    -1639        return self.binary(expression, "&")
    +            
    1637    def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str:
    +1638        return self.binary(expression, "&")
     
    @@ -8505,8 +8503,8 @@ Default: True
    -
    1641    def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str:
    -1642        return self.binary(expression, "<<")
    +            
    1640    def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str:
    +1641        return self.binary(expression, "<<")
     
    @@ -8524,8 +8522,8 @@ Default: True
    -
    1644    def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str:
    -1645        return f"~{self.sql(expression, 'this')}"
    +            
    1643    def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str:
    +1644        return f"~{self.sql(expression, 'this')}"
     
    @@ -8543,8 +8541,8 @@ Default: True
    -
    1647    def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str:
    -1648        return self.binary(expression, "|")
    +            
    1646    def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str:
    +1647        return self.binary(expression, "|")
     
    @@ -8562,8 +8560,8 @@ Default: True
    -
    1650    def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str:
    -1651        return self.binary(expression, ">>")
    +            
    1649    def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str:
    +1650        return self.binary(expression, ">>")
     
    @@ -8581,8 +8579,8 @@ Default: True
    -
    1653    def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str:
    -1654        return self.binary(expression, "^")
    +            
    1652    def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str:
    +1653        return self.binary(expression, "^")
     
    @@ -8600,8 +8598,8 @@ Default: True
    -
    1656    def cast_sql(self, expression: exp.Cast) -> str:
    -1657        return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
    +            
    1655    def cast_sql(self, expression: exp.Cast) -> str:
    +1656        return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
     
    @@ -8619,9 +8617,9 @@ Default: True
    -
    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"
    +            
    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"
     
    @@ -8639,8 +8637,8 @@ Default: True
    -
    1663    def collate_sql(self, expression: exp.Collate) -> str:
    -1664        return self.binary(expression, "COLLATE")
    +            
    1662    def collate_sql(self, expression: exp.Collate) -> str:
    +1663        return self.binary(expression, "COLLATE")
     
    @@ -8658,8 +8656,8 @@ Default: True
    -
    1666    def command_sql(self, expression: exp.Command) -> str:
    -1667        return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}"
    +            
    1665    def command_sql(self, expression: exp.Command) -> str:
    +1666        return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}"
     
    @@ -8677,12 +8675,12 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8700,8 +8698,8 @@ Default: True
    -
    1676    def transaction_sql(self, *_) -> str:
    -1677        return "BEGIN"
    +            
    1675    def transaction_sql(self, *_) -> str:
    +1676        return "BEGIN"
     
    @@ -8719,12 +8717,12 @@ Default: True
    -
    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 ''}"
    +            
    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 ''}"
     
    @@ -8742,10 +8740,10 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8763,25 +8761,25 @@ Default: True
    -
    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"
    +            
    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"
     
    @@ -8799,9 +8797,9 @@ Default: True
    -
    1711    def renametable_sql(self, expression: exp.RenameTable) -> str:
    -1712        this = self.sql(expression, "this")
    -1713        return f"RENAME TO {this}"
    +            
    1710    def renametable_sql(self, expression: exp.RenameTable) -> str:
    +1711        this = self.sql(expression, "this")
    +1712        return f"RENAME TO {this}"
     
    @@ -8819,20 +8817,20 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8850,10 +8848,10 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8871,16 +8869,16 @@ Default: True
    -
    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_}"
    +            
    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        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_}"
     
    @@ -8898,13 +8896,13 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -8922,8 +8920,8 @@ Default: True
    -
    1754    def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str:
    -1755        return f"{self.sql(expression, 'this')} IGNORE NULLS"
    +            
    1753    def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str:
    +1754        return f"{self.sql(expression, 'this')} IGNORE NULLS"
     
    @@ -8941,8 +8939,8 @@ Default: True
    -
    1757    def respectnulls_sql(self, expression: exp.RespectNulls) -> str:
    -1758        return f"{self.sql(expression, 'this')} RESPECT NULLS"
    +            
    1756    def respectnulls_sql(self, expression: exp.RespectNulls) -> str:
    +1757        return f"{self.sql(expression, 'this')} RESPECT NULLS"
     
    @@ -8960,9 +8958,9 @@ Default: True
    -
    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")))
    +            
    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")))
     
    @@ -8980,8 +8978,8 @@ Default: True
    -
    1764    def dpipe_sql(self, expression: exp.DPipe) -> str:
    -1765        return self.binary(expression, "||")
    +            
    1763    def dpipe_sql(self, expression: exp.DPipe) -> str:
    +1764        return self.binary(expression, "||")
     
    @@ -8999,13 +8997,13 @@ Default: True
    -
    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
    +            
    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
     
    @@ -9023,12 +9021,12 @@ Default: True
    -
    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, "/")
    +            
    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, "/")
     
    @@ -9046,8 +9044,8 @@ Default: True
    -
    1782    def overlaps_sql(self, expression: exp.Overlaps) -> str:
    -1783        return self.binary(expression, "OVERLAPS")
    +            
    1781    def overlaps_sql(self, expression: exp.Overlaps) -> str:
    +1782        return self.binary(expression, "OVERLAPS")
     
    @@ -9065,8 +9063,8 @@ Default: True
    -
    1785    def distance_sql(self, expression: exp.Distance) -> str:
    -1786        return self.binary(expression, "<->")
    +            
    1784    def distance_sql(self, expression: exp.Distance) -> str:
    +1785        return self.binary(expression, "<->")
     
    @@ -9084,8 +9082,8 @@ Default: True
    -
    1788    def dot_sql(self, expression: exp.Dot) -> str:
    -1789        return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}"
    +            
    1787    def dot_sql(self, expression: exp.Dot) -> str:
    +1788        return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}"
     
    @@ -9103,8 +9101,8 @@ Default: True
    -
    1791    def eq_sql(self, expression: exp.EQ) -> str:
    -1792        return self.binary(expression, "=")
    +            
    1790    def eq_sql(self, expression: exp.EQ) -> str:
    +1791        return self.binary(expression, "=")
     
    @@ -9122,8 +9120,8 @@ Default: True
    -
    1794    def escape_sql(self, expression: exp.Escape) -> str:
    -1795        return self.binary(expression, "ESCAPE")
    +            
    1793    def escape_sql(self, expression: exp.Escape) -> str:
    +1794        return self.binary(expression, "ESCAPE")
     
    @@ -9141,8 +9139,8 @@ Default: True
    -
    1797    def glob_sql(self, expression: exp.Glob) -> str:
    -1798        return self.binary(expression, "GLOB")
    +            
    1796    def glob_sql(self, expression: exp.Glob) -> str:
    +1797        return self.binary(expression, "GLOB")
     
    @@ -9160,8 +9158,8 @@ Default: True
    -
    1800    def gt_sql(self, expression: exp.GT) -> str:
    -1801        return self.binary(expression, ">")
    +            
    1799    def gt_sql(self, expression: exp.GT) -> str:
    +1800        return self.binary(expression, ">")
     
    @@ -9179,8 +9177,8 @@ Default: True
    -
    1803    def gte_sql(self, expression: exp.GTE) -> str:
    -1804        return self.binary(expression, ">=")
    +            
    1802    def gte_sql(self, expression: exp.GTE) -> str:
    +1803        return self.binary(expression, ">=")
     
    @@ -9198,8 +9196,8 @@ Default: True
    -
    1806    def ilike_sql(self, expression: exp.ILike) -> str:
    -1807        return self.binary(expression, "ILIKE")
    +            
    1805    def ilike_sql(self, expression: exp.ILike) -> str:
    +1806        return self.binary(expression, "ILIKE")
     
    @@ -9217,8 +9215,8 @@ Default: True
    -
    1809    def is_sql(self, expression: exp.Is) -> str:
    -1810        return self.binary(expression, "IS")
    +            
    1808    def is_sql(self, expression: exp.Is) -> str:
    +1809        return self.binary(expression, "IS")
     
    @@ -9236,8 +9234,8 @@ Default: True
    -
    1812    def like_sql(self, expression: exp.Like) -> str:
    -1813        return self.binary(expression, "LIKE")
    +            
    1811    def like_sql(self, expression: exp.Like) -> str:
    +1812        return self.binary(expression, "LIKE")
     
    @@ -9255,8 +9253,8 @@ Default: True
    -
    1815    def similarto_sql(self, expression: exp.SimilarTo) -> str:
    -1816        return self.binary(expression, "SIMILAR TO")
    +            
    1814    def similarto_sql(self, expression: exp.SimilarTo) -> str:
    +1815        return self.binary(expression, "SIMILAR TO")
     
    @@ -9274,8 +9272,8 @@ Default: True
    -
    1818    def lt_sql(self, expression: exp.LT) -> str:
    -1819        return self.binary(expression, "<")
    +            
    1817    def lt_sql(self, expression: exp.LT) -> str:
    +1818        return self.binary(expression, "<")
     
    @@ -9293,8 +9291,8 @@ Default: True
    -
    1821    def lte_sql(self, expression: exp.LTE) -> str:
    -1822        return self.binary(expression, "<=")
    +            
    1820    def lte_sql(self, expression: exp.LTE) -> str:
    +1821        return self.binary(expression, "<=")
     
    @@ -9312,8 +9310,8 @@ Default: True
    -
    1824    def mod_sql(self, expression: exp.Mod) -> str:
    -1825        return self.binary(expression, "%")
    +            
    1823    def mod_sql(self, expression: exp.Mod) -> str:
    +1824        return self.binary(expression, "%")
     
    @@ -9331,8 +9329,8 @@ Default: True
    -
    1827    def mul_sql(self, expression: exp.Mul) -> str:
    -1828        return self.binary(expression, "*")
    +            
    1826    def mul_sql(self, expression: exp.Mul) -> str:
    +1827        return self.binary(expression, "*")
     
    @@ -9350,8 +9348,8 @@ Default: True
    -
    1830    def neq_sql(self, expression: exp.NEQ) -> str:
    -1831        return self.binary(expression, "<>")
    +            
    1829    def neq_sql(self, expression: exp.NEQ) -> str:
    +1830        return self.binary(expression, "<>")
     
    @@ -9369,8 +9367,8 @@ Default: True
    -
    1833    def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str:
    -1834        return self.binary(expression, "IS NOT DISTINCT FROM")
    +            
    1832    def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str:
    +1833        return self.binary(expression, "IS NOT DISTINCT FROM")
     
    @@ -9388,8 +9386,8 @@ Default: True
    -
    1836    def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str:
    -1837        return self.binary(expression, "IS DISTINCT FROM")
    +            
    1835    def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str:
    +1836        return self.binary(expression, "IS DISTINCT FROM")
     
    @@ -9407,8 +9405,8 @@ Default: True
    -
    1839    def or_sql(self, expression: exp.Or) -> str:
    -1840        return self.connector_sql(expression, "OR")
    +            
    1838    def or_sql(self, expression: exp.Or) -> str:
    +1839        return self.connector_sql(expression, "OR")
     
    @@ -9426,8 +9424,8 @@ Default: True
    -
    1842    def slice_sql(self, expression: exp.Slice) -> str:
    -1843        return self.binary(expression, ":")
    +            
    1841    def slice_sql(self, expression: exp.Slice) -> str:
    +1842        return self.binary(expression, ":")
     
    @@ -9445,8 +9443,8 @@ Default: True
    -
    1845    def sub_sql(self, expression: exp.Sub) -> str:
    -1846        return self.binary(expression, "-")
    +            
    1844    def sub_sql(self, expression: exp.Sub) -> str:
    +1845        return self.binary(expression, "-")
     
    @@ -9464,8 +9462,8 @@ Default: True
    -
    1848    def trycast_sql(self, expression: exp.TryCast) -> str:
    -1849        return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
    +            
    1847    def trycast_sql(self, expression: exp.TryCast) -> str:
    +1848        return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
     
    @@ -9483,12 +9481,12 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -9506,8 +9504,8 @@ Default: True
    -
    1858    def binary(self, expression: exp.Binary, op: str) -> str:
    -1859        return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}"
    +            
    1857    def binary(self, expression: exp.Binary, op: str) -> str:
    +1858        return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}"
     
    @@ -9525,16 +9523,16 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -9552,8 +9550,8 @@ Default: True
    -
    1872    def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str:
    -1873        return f"{self.normalize_func(name)}({self.format_args(*args)})"
    +            
    1871    def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str:
    +1872        return f"{self.normalize_func(name)}({self.format_args(*args)})"
     
    @@ -9571,11 +9569,11 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -9593,8 +9591,8 @@ Default: True
    -
    1881    def text_width(self, args: t.Iterable) -> int:
    -1882        return sum(len(arg) for arg in args)
    +            
    1880    def text_width(self, args: t.Iterable) -> int:
    +1881        return sum(len(arg) for arg in args)
     
    @@ -9612,8 +9610,8 @@ Default: True
    -
    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)
    +            
    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)
     
    @@ -9631,46 +9629,46 @@ Default: True
    -
    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
    +            
    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        # 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
     
    @@ -9688,12 +9686,12 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -9711,11 +9709,11 @@ Default: True
    -
    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')}"
    +            
    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')}"
     
    @@ -9733,12 +9731,12 @@ Default: True
    -
    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        )
    +            
    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        )
     
    @@ -9756,8 +9754,8 @@ Default: True
    -
    1948    def tag_sql(self, expression: exp.Tag) -> str:
    -1949        return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}"
    +            
    1947    def tag_sql(self, expression: exp.Tag) -> str:
    +1948        return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}"
     
    @@ -9775,8 +9773,8 @@ Default: True
    -
    1951    def token_sql(self, token_type: TokenType) -> str:
    -1952        return self.TOKEN_MAPPING.get(token_type, token_type.name)
    +            
    1950    def token_sql(self, token_type: TokenType) -> str:
    +1951        return self.TOKEN_MAPPING.get(token_type, token_type.name)
     
    @@ -9794,13 +9792,13 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -9818,10 +9816,10 @@ Default: True
    -
    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})"
    +            
    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})"
     
    @@ -9839,8 +9837,8 @@ Default: True
    -
    1967    def kwarg_sql(self, expression: exp.Kwarg) -> str:
    -1968        return self.binary(expression, "=>")
    +            
    1966    def kwarg_sql(self, expression: exp.Kwarg) -> str:
    +1967        return self.binary(expression, "=>")
     
    @@ -9858,25 +9856,25 @@ Default: True
    -
    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}"
    +            
    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}"
     
    @@ -9894,11 +9892,11 @@ Default: True
    -
    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=' ')}"
    +            
    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=' ')}"
     
    diff --git a/docs/sqlglot/lineage.html b/docs/sqlglot/lineage.html index 98c3ce6..afdc8a0 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 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: + 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 0x7f5daa3a0ee0>, <function qualify_columns at 0x7f5daa39fd90>, <function expand_laterals at 0x7f5daa39e560>), dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.lineage.Node: diff --git a/docs/sqlglot/optimizer/optimizer.html b/docs/sqlglot/optimizer/optimizer.html index 2859e5a..efbece9 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 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): + 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 0x7f5daa39e830>, <function qualify_tables at 0x7f5daa3a0ee0>, <function isolate_table_selects at 0x7f5daa39e7a0>, <function qualify_columns at 0x7f5daa39fd90>, <function expand_laterals at 0x7f5daa39e560>, <function pushdown_projections at 0x7f5daa3a08b0>, <function validate_qualify_columns at 0x7f5daa39fe20>, <function normalize at 0x7f5daa39c550>, <function unnest_subqueries at 0x7f5daa3a1000>, <function expand_multi_table_selects at 0x7f5daa39e710>, <function pushdown_predicates at 0x7f5daa39f910>, <function optimize_joins at 0x7f5daa39f640>, <function eliminate_subqueries at 0x7f5daa39e170>, <function merge_subqueries at 0x7f5daa39eb00>, <function eliminate_joins at 0x7f5daa39c3a0>, <function eliminate_ctes at 0x7f5daa39c280>, <function annotate_types at 0x7f5daa324e50>, <function canonicalize at 0x7f5daa3b7e20>), **kwargs): diff --git a/docs/sqlglot/parser.html b/docs/sqlglot/parser.html index 0d6539f..7d20b96 100644 --- a/docs/sqlglot/parser.html +++ b/docs/sqlglot/parser.html @@ -33,6 +33,9 @@
  • parse_var_map
  • +
  • + binary_range_parser +
  • Parser
      @@ -119,3956 +122,3957 @@ 31 ) 32 33 - 34class _Parser(type): - 35 def __new__(cls, clsname, bases, attrs): - 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 - 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. + 34def binary_range_parser( + 35 expr_type: t.Type[exp.Expression], + 36) -> t.Callable[[Parser, t.Optional[exp.Expression]], t.Optional[exp.Expression]]: + 37 return lambda self, this: self._parse_escape( + 38 self.expression(expr_type, this=this, expression=self._parse_bitwise()) + 39 ) + 40 + 41 + 42class _Parser(type): + 43 def __new__(cls, clsname, bases, attrs): + 44 klass = super().__new__(cls, clsname, bases, attrs) + 45 klass._show_trie = new_trie(key.split(" ") for key in klass.SHOW_PARSERS) + 46 klass._set_trie = new_trie(key.split(" ") for key in klass.SET_PARSERS) + 47 + 48 if not klass.INTEGER_DIVISION: + 49 klass.FACTOR = {**klass.FACTOR, TokenType.SLASH: exp.FloatDiv} 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 "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), + 51 return klass + 52 + 53 + 54class Parser(metaclass=_Parser): + 55 """ + 56 Parser consumes a list of tokens produced by the `sqlglot.tokens.Tokenizer` and produces + 57 a parsed syntax tree. + 58 + 59 Args: + 60 error_level: the desired error level. + 61 Default: ErrorLevel.RAISE + 62 error_message_context: determines the amount of context to capture from a + 63 query string when displaying the error message (in number of characters). + 64 Default: 50. + 65 index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list. + 66 Default: 0 + 67 alias_post_tablesample: If the table alias comes after tablesample. + 68 Default: False + 69 max_errors: Maximum number of error messages to include in a raised ParseError. + 70 This is only relevant if error_level is ErrorLevel.RAISE. + 71 Default: 3 + 72 null_ordering: Indicates the default null ordering method to use if not explicitly set. + 73 Options are "nulls_are_small", "nulls_are_large", "nulls_are_last". + 74 Default: "nulls_are_small" + 75 """ + 76 + 77 FUNCTIONS: t.Dict[str, t.Callable] = { + 78 **{name: f.from_arg_list for f in exp.ALL_FUNCTIONS for name in f.sql_names()}, + 79 "DATE_TO_DATE_STR": lambda args: exp.Cast( + 80 this=seq_get(args, 0), + 81 to=exp.DataType(this=exp.DataType.Type.TEXT), + 82 ), + 83 "TIME_TO_TIME_STR": lambda args: exp.Cast( + 84 this=seq_get(args, 0), + 85 to=exp.DataType(this=exp.DataType.Type.TEXT), 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} + 87 "TS_OR_DS_TO_DATE_STR": lambda args: exp.Substring( + 88 this=exp.Cast( + 89 this=seq_get(args, 0), + 90 to=exp.DataType(this=exp.DataType.Type.TEXT), + 91 ), + 92 start=exp.Literal.number(1), + 93 length=exp.Literal.number(10), + 94 ), + 95 "VAR_MAP": parse_var_map, + 96 "IFNULL": exp.Coalesce.from_arg_list, + 97 } + 98 + 99 NO_PAREN_FUNCTIONS = { + 100 TokenType.CURRENT_DATE: exp.CurrentDate, + 101 TokenType.CURRENT_DATETIME: exp.CurrentDate, + 102 TokenType.CURRENT_TIMESTAMP: exp.CurrentTimestamp, + 103 } + 104 + 105 NESTED_TYPE_TOKENS = { + 106 TokenType.ARRAY, + 107 TokenType.MAP, + 108 TokenType.STRUCT, + 109 TokenType.NULLABLE, + 110 } + 111 + 112 TYPE_TOKENS = { + 113 TokenType.BIT, + 114 TokenType.BOOLEAN, + 115 TokenType.TINYINT, + 116 TokenType.SMALLINT, + 117 TokenType.INT, + 118 TokenType.BIGINT, + 119 TokenType.FLOAT, + 120 TokenType.DOUBLE, + 121 TokenType.CHAR, + 122 TokenType.NCHAR, + 123 TokenType.VARCHAR, + 124 TokenType.NVARCHAR, + 125 TokenType.TEXT, + 126 TokenType.MEDIUMTEXT, + 127 TokenType.LONGTEXT, + 128 TokenType.MEDIUMBLOB, + 129 TokenType.LONGBLOB, + 130 TokenType.BINARY, + 131 TokenType.VARBINARY, + 132 TokenType.JSON, + 133 TokenType.JSONB, + 134 TokenType.INTERVAL, + 135 TokenType.TIME, + 136 TokenType.TIMESTAMP, + 137 TokenType.TIMESTAMPTZ, + 138 TokenType.TIMESTAMPLTZ, + 139 TokenType.DATETIME, + 140 TokenType.DATE, + 141 TokenType.DECIMAL, + 142 TokenType.UUID, + 143 TokenType.GEOGRAPHY, + 144 TokenType.GEOMETRY, + 145 TokenType.HLLSKETCH, + 146 TokenType.HSTORE, + 147 TokenType.PSEUDO_TYPE, + 148 TokenType.SUPER, + 149 TokenType.SERIAL, + 150 TokenType.SMALLSERIAL, + 151 TokenType.BIGSERIAL, + 152 TokenType.XML, + 153 TokenType.UNIQUEIDENTIFIER, + 154 TokenType.MONEY, + 155 TokenType.SMALLMONEY, + 156 TokenType.ROWVERSION, + 157 TokenType.IMAGE, + 158 TokenType.VARIANT, + 159 TokenType.OBJECT, + 160 TokenType.INET, + 161 *NESTED_TYPE_TOKENS, + 162 } 163 - 164 DB_CREATABLES = { - 165 TokenType.DATABASE, - 166 TokenType.SCHEMA, - 167 TokenType.TABLE, - 168 TokenType.VIEW, + 164 SUBQUERY_PREDICATES = { + 165 TokenType.ANY: exp.Any, + 166 TokenType.ALL: exp.All, + 167 TokenType.EXISTS: exp.Exists, + 168 TokenType.SOME: exp.Any, 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, + 171 RESERVED_KEYWORDS = {*Tokenizer.SINGLE_TOKENS.values(), TokenType.SELECT} + 172 + 173 DB_CREATABLES = { + 174 TokenType.DATABASE, + 175 TokenType.SCHEMA, + 176 TokenType.TABLE, + 177 TokenType.VIEW, + 178 } + 179 + 180 CREATABLES = { + 181 TokenType.COLUMN, + 182 TokenType.FUNCTION, + 183 TokenType.INDEX, + 184 TokenType.PROCEDURE, + 185 *DB_CREATABLES, + 186 } + 187 + 188 ID_VAR_TOKENS = { + 189 TokenType.VAR, + 190 TokenType.ANTI, + 191 TokenType.APPLY, + 192 TokenType.AUTO_INCREMENT, + 193 TokenType.BEGIN, + 194 TokenType.BOTH, + 195 TokenType.BUCKET, + 196 TokenType.CACHE, + 197 TokenType.CASCADE, + 198 TokenType.COLLATE, + 199 TokenType.COMMAND, + 200 TokenType.COMMENT, + 201 TokenType.COMMIT, + 202 TokenType.COMPOUND, + 203 TokenType.CONSTRAINT, + 204 TokenType.CURRENT_TIME, + 205 TokenType.DEFAULT, + 206 TokenType.DELETE, + 207 TokenType.DESCRIBE, + 208 TokenType.DIV, + 209 TokenType.END, + 210 TokenType.EXECUTE, + 211 TokenType.ESCAPE, + 212 TokenType.FALSE, + 213 TokenType.FIRST, + 214 TokenType.FILTER, + 215 TokenType.FOLLOWING, + 216 TokenType.FORMAT, + 217 TokenType.IF, + 218 TokenType.ISNULL, + 219 TokenType.INTERVAL, + 220 TokenType.LAZY, + 221 TokenType.LEADING, + 222 TokenType.LEFT, + 223 TokenType.LOCAL, + 224 TokenType.MATERIALIZED, + 225 TokenType.MERGE, + 226 TokenType.NATURAL, + 227 TokenType.NEXT, + 228 TokenType.OFFSET, + 229 TokenType.ONLY, + 230 TokenType.OPTIONS, + 231 TokenType.ORDINALITY, + 232 TokenType.PERCENT, + 233 TokenType.PIVOT, + 234 TokenType.PRECEDING, + 235 TokenType.RANGE, + 236 TokenType.REFERENCES, + 237 TokenType.RIGHT, + 238 TokenType.ROW, + 239 TokenType.ROWS, + 240 TokenType.SEED, + 241 TokenType.SEMI, + 242 TokenType.SET, + 243 TokenType.SHOW, + 244 TokenType.SORTKEY, + 245 TokenType.TEMPORARY, + 246 TokenType.TOP, + 247 TokenType.TRAILING, + 248 TokenType.TRUE, + 249 TokenType.UNBOUNDED, + 250 TokenType.UNIQUE, + 251 TokenType.UNLOGGED, + 252 TokenType.UNPIVOT, + 253 TokenType.VOLATILE, + 254 TokenType.WINDOW, + 255 *CREATABLES, + 256 *SUBQUERY_PREDICATES, + 257 *TYPE_TOKENS, + 258 *NO_PAREN_FUNCTIONS, 259 } 260 - 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, + 261 TABLE_ALIAS_TOKENS = ID_VAR_TOKENS - { + 262 TokenType.APPLY, + 263 TokenType.LEFT, + 264 TokenType.NATURAL, + 265 TokenType.OFFSET, + 266 TokenType.RIGHT, + 267 TokenType.WINDOW, + 268 } + 269 + 270 UPDATE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.SET} + 271 + 272 TRIM_TYPES = {TokenType.LEADING, TokenType.TRAILING, TokenType.BOTH} + 273 + 274 FUNC_TOKENS = { + 275 TokenType.COMMAND, + 276 TokenType.CURRENT_DATE, + 277 TokenType.CURRENT_DATETIME, + 278 TokenType.CURRENT_TIMESTAMP, + 279 TokenType.CURRENT_TIME, + 280 TokenType.FILTER, + 281 TokenType.FIRST, + 282 TokenType.FORMAT, + 283 TokenType.IDENTIFIER, + 284 TokenType.INDEX, + 285 TokenType.ISNULL, + 286 TokenType.ILIKE, + 287 TokenType.LIKE, + 288 TokenType.MERGE, + 289 TokenType.OFFSET, + 290 TokenType.PRIMARY_KEY, + 291 TokenType.REPLACE, + 292 TokenType.ROW, + 293 TokenType.UNNEST, + 294 TokenType.VAR, + 295 TokenType.LEFT, + 296 TokenType.RIGHT, + 297 TokenType.DATE, + 298 TokenType.DATETIME, + 299 TokenType.TABLE, + 300 TokenType.TIMESTAMP, + 301 TokenType.TIMESTAMPTZ, + 302 TokenType.WINDOW, + 303 *TYPE_TOKENS, + 304 *SUBQUERY_PREDICATES, + 305 } + 306 + 307 CONJUNCTION = { + 308 TokenType.AND: exp.And, + 309 TokenType.OR: exp.Or, + 310 } + 311 + 312 EQUALITY = { + 313 TokenType.EQ: exp.EQ, + 314 TokenType.NEQ: exp.NEQ, + 315 TokenType.NULLSAFE_EQ: exp.NullSafeEQ, + 316 } + 317 + 318 COMPARISON = { + 319 TokenType.GT: exp.GT, + 320 TokenType.GTE: exp.GTE, + 321 TokenType.LT: exp.LT, + 322 TokenType.LTE: exp.LTE, + 323 } + 324 + 325 BITWISE = { + 326 TokenType.AMP: exp.BitwiseAnd, + 327 TokenType.CARET: exp.BitwiseXor, + 328 TokenType.PIPE: exp.BitwiseOr, + 329 TokenType.DPIPE: exp.DPipe, + 330 } + 331 + 332 TERM = { + 333 TokenType.DASH: exp.Sub, + 334 TokenType.PLUS: exp.Add, + 335 TokenType.MOD: exp.Mod, + 336 TokenType.COLLATE: exp.Collate, + 337 } + 338 + 339 FACTOR = { + 340 TokenType.DIV: exp.IntDiv, + 341 TokenType.LR_ARROW: exp.Distance, + 342 TokenType.SLASH: exp.Div, + 343 TokenType.STAR: exp.Mul, + 344 } + 345 + 346 TIMESTAMPS = { + 347 TokenType.TIME, + 348 TokenType.TIMESTAMP, + 349 TokenType.TIMESTAMPTZ, + 350 TokenType.TIMESTAMPLTZ, + 351 } + 352 + 353 SET_OPERATIONS = { + 354 TokenType.UNION, + 355 TokenType.INTERSECT, + 356 TokenType.EXCEPT, + 357 } + 358 + 359 JOIN_SIDES = { + 360 TokenType.LEFT, + 361 TokenType.RIGHT, + 362 TokenType.FULL, + 363 } + 364 + 365 JOIN_KINDS = { + 366 TokenType.INNER, + 367 TokenType.OUTER, + 368 TokenType.CROSS, + 369 TokenType.SEMI, + 370 TokenType.ANTI, + 371 } + 372 + 373 LAMBDAS = { + 374 TokenType.ARROW: lambda self, expressions: self.expression( + 375 exp.Lambda, + 376 this=self._parse_conjunction().transform( + 377 self._replace_lambda, {node.name for node in expressions} + 378 ), + 379 expressions=expressions, + 380 ), + 381 TokenType.FARROW: lambda self, expressions: self.expression( + 382 exp.Kwarg, + 383 this=exp.Var(this=expressions[0].name), + 384 expression=self._parse_conjunction(), 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.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( + 386 } + 387 + 388 COLUMN_OPERATORS = { + 389 TokenType.DOT: None, + 390 TokenType.DCOLON: lambda self, this, to: self.expression( + 391 exp.Cast, + 392 this=this, + 393 to=to, + 394 ), + 395 TokenType.ARROW: lambda self, this, path: self.expression( + 396 exp.JSONExtract, + 397 this=this, + 398 expression=path, + 399 ), + 400 TokenType.DARROW: lambda self, this, path: self.expression( + 401 exp.JSONExtractScalar, + 402 this=this, + 403 expression=path, + 404 ), + 405 TokenType.HASH_ARROW: lambda self, this, path: self.expression( + 406 exp.JSONBExtract, + 407 this=this, + 408 expression=path, + 409 ), + 410 TokenType.DHASH_ARROW: lambda self, this, path: self.expression( + 411 exp.JSONBExtractScalar, + 412 this=this, + 413 expression=path, + 414 ), + 415 TokenType.PLACEHOLDER: lambda self, this, key: self.expression( + 416 exp.JSONBContains, + 417 this=this, + 418 expression=key, + 419 ), + 420 } + 421 + 422 EXPRESSION_PARSERS = { + 423 exp.Column: lambda self: self._parse_column(), + 424 exp.DataType: lambda self: self._parse_types(), + 425 exp.From: lambda self: self._parse_from(), + 426 exp.Group: lambda self: self._parse_group(), + 427 exp.Identifier: lambda self: self._parse_id_var(), + 428 exp.Lateral: lambda self: self._parse_lateral(), + 429 exp.Join: lambda self: self._parse_join(), + 430 exp.Order: lambda self: self._parse_order(), + 431 exp.Cluster: lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), + 432 exp.Sort: lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), + 433 exp.Lambda: lambda self: self._parse_lambda(), + 434 exp.Limit: lambda self: self._parse_limit(), + 435 exp.Offset: lambda self: self._parse_offset(), + 436 exp.TableAlias: lambda self: self._parse_table_alias(), + 437 exp.Table: lambda self: self._parse_table(), + 438 exp.Condition: lambda self: self._parse_conjunction(), + 439 exp.Expression: lambda self: self._parse_statement(), + 440 exp.Properties: lambda self: self._parse_properties(), + 441 exp.Where: lambda self: self._parse_where(), + 442 exp.Ordered: lambda self: self._parse_ordered(), + 443 exp.Having: lambda self: self._parse_having(), + 444 exp.With: lambda self: self._parse_with(), + 445 exp.Window: lambda self: self._parse_named_window(), + 446 exp.Qualify: lambda self: self._parse_qualify(), + 447 "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(), + 448 } + 449 + 450 STATEMENT_PARSERS = { + 451 TokenType.ALTER: lambda self: self._parse_alter(), + 452 TokenType.BEGIN: lambda self: self._parse_transaction(), + 453 TokenType.CACHE: lambda self: self._parse_cache(), + 454 TokenType.COMMIT: lambda self: self._parse_commit_or_rollback(), + 455 TokenType.COMMENT: lambda self: self._parse_comment(), + 456 TokenType.CREATE: lambda self: self._parse_create(), + 457 TokenType.DELETE: lambda self: self._parse_delete(), + 458 TokenType.DESC: lambda self: self._parse_describe(), + 459 TokenType.DESCRIBE: lambda self: self._parse_describe(), + 460 TokenType.DROP: lambda self: self._parse_drop(), + 461 TokenType.END: lambda self: self._parse_commit_or_rollback(), + 462 TokenType.INSERT: lambda self: self._parse_insert(), + 463 TokenType.LOAD_DATA: lambda self: self._parse_load_data(), + 464 TokenType.MERGE: lambda self: self._parse_merge(), + 465 TokenType.ROLLBACK: lambda self: self._parse_commit_or_rollback(), + 466 TokenType.UNCACHE: lambda self: self._parse_uncache(), + 467 TokenType.UPDATE: lambda self: self._parse_update(), + 468 TokenType.USE: lambda self: self.expression( + 469 exp.Use, + 470 kind=self._match_texts(("ROLE", "WAREHOUSE", "DATABASE", "SCHEMA")) + 471 and exp.Var(this=self._prev.text), + 472 this=self._parse_table(schema=False), + 473 ), + 474 } + 475 + 476 UNARY_PARSERS = { + 477 TokenType.PLUS: lambda self: self._parse_unary(), # Unary + is handled as a no-op + 478 TokenType.NOT: lambda self: self.expression(exp.Not, this=self._parse_equality()), + 479 TokenType.TILDA: lambda self: self.expression(exp.BitwiseNot, this=self._parse_unary()), + 480 TokenType.DASH: lambda self: self.expression(exp.Neg, this=self._parse_unary()), + 481 } + 482 + 483 PRIMARY_PARSERS = { + 484 TokenType.STRING: lambda self, token: self.expression( + 485 exp.Literal, this=token.text, is_string=True + 486 ), + 487 TokenType.NUMBER: lambda self, token: self.expression( + 488 exp.Literal, this=token.text, is_string=False + 489 ), + 490 TokenType.STAR: lambda self, _: self.expression( + 491 exp.Star, + 492 **{"except": self._parse_except(), "replace": self._parse_replace()}, + 493 ), + 494 TokenType.NULL: lambda self, _: self.expression(exp.Null), + 495 TokenType.TRUE: lambda self, _: self.expression(exp.Boolean, this=True), + 496 TokenType.FALSE: lambda self, _: self.expression(exp.Boolean, this=False), + 497 TokenType.BIT_STRING: lambda self, token: self.expression(exp.BitString, this=token.text), + 498 TokenType.HEX_STRING: lambda self, token: self.expression(exp.HexString, this=token.text), + 499 TokenType.BYTE_STRING: lambda self, token: self.expression(exp.ByteString, this=token.text), + 500 TokenType.INTRODUCER: lambda self, token: self._parse_introducer(token), + 501 TokenType.NATIONAL: lambda self, token: self._parse_national(token), + 502 TokenType.SESSION_PARAMETER: lambda self, _: self._parse_session_parameter(), + 503 } + 504 + 505 PLACEHOLDER_PARSERS = { + 506 TokenType.PLACEHOLDER: lambda self: self.expression(exp.Placeholder), + 507 TokenType.PARAMETER: lambda self: self._parse_parameter(), + 508 TokenType.COLON: lambda self: self.expression(exp.Placeholder, this=self._prev.text) + 509 if self._match_set((TokenType.NUMBER, TokenType.VAR)) + 510 else None, + 511 } + 512 + 513 RANGE_PARSERS = { + 514 TokenType.BETWEEN: lambda self, this: self._parse_between(this), + 515 TokenType.GLOB: binary_range_parser(exp.Glob), + 516 TokenType.OVERLAPS: binary_range_parser(exp.Overlaps), + 517 TokenType.IN: lambda self, this: self._parse_in(this), + 518 TokenType.IS: lambda self, this: self._parse_is(this), + 519 TokenType.LIKE: binary_range_parser(exp.Like), + 520 TokenType.ILIKE: binary_range_parser(exp.ILike), + 521 TokenType.IRLIKE: binary_range_parser(exp.RegexpILike), + 522 TokenType.RLIKE: binary_range_parser(exp.RegexpLike), + 523 TokenType.SIMILAR_TO: binary_range_parser(exp.SimilarTo), + 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( 533 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" 534 ), - 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) + 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" 545 ), - 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() + 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() 629 ), - 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 } + 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 "sample": lambda self: self._parse_table_sample(as_modifier=True), + 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 SHOW_PARSERS: t.Dict[str, t.Callable] = {} - 696 SET_PARSERS: t.Dict[str, t.Callable] = {} - 697 - 698 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) - 699 - 700 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} - 701 - 702 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} - 703 - 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)) + 695 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} + 696 + 697 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} + 698 + 699 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} + 700 + 701 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} + 702 + 703 STRICT_CAST = True + 704 + 705 INTEGER_DIVISION = True + 706 + 707 CONVERT_TYPE_FIRST = False + 708 + 709 __slots__ = ( + 710 "error_level", + 711 "error_message_context", + 712 "sql", + 713 "errors", + 714 "index_offset", + 715 "unnest_column_only", + 716 "alias_post_tablesample", + 717 "max_errors", + 718 "null_ordering", + 719 "_tokens", + 720 "_index", + 721 "_curr", + 722 "_next", + 723 "_prev", + 724 "_prev_comments", + 725 "_show_trie", + 726 "_set_trie", + 727 ) + 728 + 729 def __init__( + 730 self, + 731 error_level: t.Optional[ErrorLevel] = None, + 732 error_message_context: int = 100, + 733 index_offset: int = 0, + 734 unnest_column_only: bool = False, + 735 alias_post_tablesample: bool = False, + 736 max_errors: int = 3, + 737 null_ordering: t.Optional[str] = None, + 738 ): + 739 self.error_level = error_level or ErrorLevel.IMMEDIATE + 740 self.error_message_context = error_message_context + 741 self.index_offset = index_offset + 742 self.unnest_column_only = unnest_column_only + 743 self.alias_post_tablesample = alias_post_tablesample + 744 self.max_errors = max_errors + 745 self.null_ordering = null_ordering + 746 self.reset() + 747 + 748 def reset(self): + 749 self.sql = "" + 750 self.errors = [] + 751 self._tokens = [] + 752 self._index = 0 + 753 self._curr = None + 754 self._next = None + 755 self._prev = None + 756 self._prev_comments = None + 757 + 758 def parse( + 759 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None + 760 ) -> t.List[t.Optional[exp.Expression]]: + 761 """ + 762 Parses a list of tokens and returns a list of syntax trees, one tree + 763 per parsed SQL statement. + 764 + 765 Args: + 766 raw_tokens: the list of tokens. + 767 sql: the original SQL string, used to produce helpful debug messages. + 768 + 769 Returns: + 770 The list of syntax trees. + 771 """ + 772 return self._parse( + 773 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql + 774 ) + 775 + 776 def parse_into( + 777 self, + 778 expression_types: exp.IntoType, + 779 raw_tokens: t.List[Token], + 780 sql: t.Optional[str] = None, + 781 ) -> t.List[t.Optional[exp.Expression]]: + 782 """ + 783 Parses a list of tokens into a given Expression type. If a collection of Expression + 784 types is given instead, this method will try to parse the token list into each one + 785 of them, stopping at the first for which the parsing succeeds. + 786 + 787 Args: + 788 expression_types: the expression type(s) to try and parse the token list into. + 789 raw_tokens: the list of tokens. + 790 sql: the original SQL string, used to produce helpful debug messages. + 791 + 792 Returns: + 793 The target Expression. + 794 """ + 795 errors = [] + 796 for expression_type in ensure_collection(expression_types): + 797 parser = self.EXPRESSION_PARSERS.get(expression_type) + 798 if not parser: + 799 raise TypeError(f"No parser registered for {expression_type}") + 800 try: + 801 return self._parse(parser, raw_tokens, sql) + 802 except ParseError as e: + 803 e.errors[0]["into_expression"] = expression_type + 804 errors.append(e) + 805 raise ParseError( + 806 f"Failed to parse into {expression_types}", + 807 errors=merge_errors(errors), + 808 ) from errors[-1] + 809 + 810 def _parse( + 811 self, + 812 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], + 813 raw_tokens: t.List[Token], + 814 sql: t.Optional[str] = None, + 815 ) -> t.List[t.Optional[exp.Expression]]: + 816 self.reset() + 817 self.sql = sql or "" + 818 total = len(raw_tokens) + 819 chunks: t.List[t.List[Token]] = [[]] + 820 + 821 for i, token in enumerate(raw_tokens): + 822 if token.token_type == TokenType.SEMICOLON: + 823 if i < total - 1: + 824 chunks.append([]) + 825 else: + 826 chunks[-1].append(token) + 827 + 828 expressions = [] + 829 + 830 for tokens in chunks: + 831 self._index = -1 + 832 self._tokens = tokens + 833 self._advance() + 834 + 835 expressions.append(parse_method(self)) + 836 + 837 if self._index < len(self._tokens): + 838 self.raise_error("Invalid expression / Unexpected token") 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 ) + 840 self.check_errors() + 841 + 842 return expressions + 843 + 844 def check_errors(self) -> None: + 845 """ + 846 Logs or raises any found errors, depending on the chosen error level setting. + 847 """ + 848 if self.error_level == ErrorLevel.WARN: + 849 for error in self.errors: + 850 logger.error(str(error)) + 851 elif self.error_level == ErrorLevel.RAISE and self.errors: + 852 raise ParseError( + 853 concat_messages(self.errors, self.max_errors), + 854 errors=merge_errors(self.errors), + 855 ) + 856 + 857 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: + 858 """ + 859 Appends an error in the list of recorded errors or raises it, depending on the chosen + 860 error level setting. + 861 """ + 862 token = token or self._curr or self._prev or Token.string("") + 863 start = self._find_token(token) + 864 end = start + len(token.text) + 865 start_context = self.sql[max(start - self.error_message_context, 0) : start] + 866 highlight = self.sql[start:end] + 867 end_context = self.sql[end : end + self.error_message_context] + 868 + 869 error = ParseError.new( + 870 f"{message}. Line {token.line}, Col: {token.col}.\n" + 871 f" {start_context}\033[4m{highlight}\033[0m{end_context}", + 872 description=message, + 873 line=token.line, + 874 col=token.col, + 875 start_context=start_context, + 876 highlight=highlight, + 877 end_context=end_context, + 878 ) + 879 + 880 if self.error_level == ErrorLevel.IMMEDIATE: + 881 raise error 882 - 883 if self.error_level == ErrorLevel.IMMEDIATE: - 884 raise error - 885 - 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 + 883 self.errors.append(error) + 884 + 885 def expression( + 886 self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs + 887 ) -> exp.Expression: + 888 """ + 889 Creates a new, validated Expression. + 890 + 891 Args: + 892 exp_class: the expression class to instantiate. + 893 comments: an optional list of comments to attach to the expression. + 894 kwargs: the arguments to set for the expression along with their respective values. + 895 + 896 Returns: + 897 The target expression. + 898 """ + 899 instance = exp_class(**kwargs) + 900 if self._prev_comments: + 901 instance.comments = self._prev_comments + 902 self._prev_comments = None + 903 if comments: + 904 instance.comments = comments + 905 self.validate_expression(instance) + 906 return instance + 907 + 908 def validate_expression( + 909 self, expression: exp.Expression, args: t.Optional[t.List] = None + 910 ) -> None: + 911 """ + 912 Validates an already instantiated expression, making sure that all its mandatory arguments + 913 are set. + 914 + 915 Args: + 916 expression: the expression to validate. + 917 args: an optional list of items that was used to instantiate the expression, if it's a Func. + 918 """ + 919 if self.error_level == ErrorLevel.IGNORE: + 920 return + 921 + 922 for error_message in expression.error_messages(args): + 923 self.raise_error(error_message) 924 - 925 for error_message in expression.error_messages(args): - 926 self.raise_error(error_message) + 925 def _find_sql(self, start: Token, end: Token) -> str: + 926 return self.sql[self._find_token(start) : self._find_token(end) + len(end.text)] 927 - 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 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) + 928 def _find_token(self, token: Token) -> int: + 929 line = 1 + 930 col = 1 + 931 index = 0 + 932 + 933 while line < token.line or col < token.col: + 934 if Tokenizer.WHITE_SPACE.get(self.sql[index]) == TokenType.BREAK: + 935 line += 1 + 936 col = 1 + 937 else: + 938 col += 1 + 939 index += 1 + 940 + 941 return index + 942 + 943 def _advance(self, times: int = 1) -> None: + 944 self._index += times + 945 self._curr = seq_get(self._tokens, self._index) + 946 self._next = seq_get(self._tokens, self._index + 1) + 947 if self._index > 0: + 948 self._prev = self._tokens[self._index - 1] + 949 self._prev_comments = self._prev.comments + 950 else: + 951 self._prev = None + 952 self._prev_comments = None + 953 + 954 def _retreat(self, index: int) -> None: + 955 if index != self._index: + 956 self._advance(index - self._index) + 957 + 958 def _parse_command(self) -> exp.Expression: + 959 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) 960 - 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 + 961 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: + 962 start = self._prev + 963 exists = self._parse_exists() if allow_exists else None + 964 + 965 self._match(TokenType.ON) + 966 + 967 kind = self._match_set(self.CREATABLES) and self._prev + 968 + 969 if not kind: + 970 return self._parse_as_command(start) 971 - 972 if not kind: - 973 return self._parse_as_command(start) - 974 - 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 + 972 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): + 973 this = self._parse_user_defined_function(kind=kind.token_type) + 974 elif kind.token_type == TokenType.TABLE: + 975 this = self._parse_table() + 976 elif kind.token_type == TokenType.COLUMN: + 977 this = self._parse_column() + 978 else: + 979 this = self._parse_id_var() + 980 + 981 self._match(TokenType.IS) + 982 + 983 return self.expression( + 984 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists + 985 ) + 986 + 987 def _parse_statement(self) -> t.Optional[exp.Expression]: + 988 if self._curr is None: + 989 return None + 990 + 991 if self._match_set(self.STATEMENT_PARSERS): + 992 return self.STATEMENT_PARSERS[self._prev.token_type](self) 993 - 994 if self._match_set(self.STATEMENT_PARSERS): - 995 return self.STATEMENT_PARSERS[self._prev.token_type](self) + 994 if self._match_set(Tokenizer.COMMANDS): + 995 return self._parse_command() 996 - 997 if self._match_set(Tokenizer.COMMANDS): - 998 return self._parse_command() + 997 expression = self._parse_expression() + 998 expression = self._parse_set_operations(expression) if expression else self._parse_select() 999 -1000 expression = self._parse_expression() -1001 expression = self._parse_set_operations(expression) if expression else self._parse_select() +1000 self._parse_query_modifiers(expression) +1001 return expression 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) +1003 def _parse_drop(self, default_kind: t.Optional[str] = None) -> t.Optional[exp.Expression]: +1004 start = self._prev +1005 temporary = self._match(TokenType.TEMPORARY) +1006 materialized = self._match(TokenType.MATERIALIZED) +1007 kind = self._match_set(self.CREATABLES) and self._prev.text +1008 if not kind: +1009 if default_kind: +1010 kind = default_kind +1011 else: +1012 return self._parse_as_command(start) +1013 +1014 return self.expression( +1015 exp.Drop, +1016 exists=self._parse_exists(), +1017 this=self._parse_table(schema=True), +1018 kind=kind, +1019 temporary=temporary, +1020 materialized=materialized, +1021 cascade=self._match(TokenType.CASCADE), +1022 ) +1023 +1024 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: +1025 return ( +1026 self._match(TokenType.IF) +1027 and (not not_ or self._match(TokenType.NOT)) +1028 and self._match(TokenType.EXISTS) +1029 ) +1030 +1031 def _parse_create(self) -> t.Optional[exp.Expression]: +1032 start = self._prev +1033 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( +1034 TokenType.OR, TokenType.REPLACE +1035 ) +1036 unique = self._match(TokenType.UNIQUE) +1037 volatile = self._match(TokenType.VOLATILE) +1038 +1039 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): +1040 self._match(TokenType.TABLE) 1041 -1042 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): -1043 self._match(TokenType.TABLE) +1042 properties = None +1043 create_token = self._match_set(self.CREATABLES) and self._prev 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 +1045 if not create_token: +1046 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE +1047 create_token = self._match_set(self.CREATABLES) and self._prev +1048 +1049 if not properties or not create_token: +1050 return self._parse_as_command(start) 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 this = self._parse_schema(this=table_parts) -1091 -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 ) +1052 exists = self._parse_exists(not_=True) +1053 this = None +1054 expression = None +1055 indexes = None +1056 no_schema_binding = None +1057 begin = None +1058 +1059 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): +1060 this = self._parse_user_defined_function(kind=create_token.token_type) +1061 temp_properties = self._parse_properties() +1062 if properties and temp_properties: +1063 properties.expressions.extend(temp_properties.expressions) +1064 elif temp_properties: +1065 properties = temp_properties +1066 +1067 self._match(TokenType.ALIAS) +1068 begin = self._match(TokenType.BEGIN) +1069 return_ = self._match_text_seq("RETURN") +1070 expression = self._parse_statement() +1071 +1072 if return_: +1073 expression = self.expression(exp.Return, this=expression) +1074 elif create_token.token_type == TokenType.INDEX: +1075 this = self._parse_index() +1076 elif create_token.token_type in self.DB_CREATABLES: +1077 table_parts = self._parse_table_parts(schema=True) +1078 +1079 # exp.Properties.Location.POST_NAME +1080 if self._match(TokenType.COMMA): +1081 temp_properties = self._parse_properties(before=True) +1082 if properties and temp_properties: +1083 properties.expressions.extend(temp_properties.expressions) +1084 elif temp_properties: +1085 properties = temp_properties +1086 +1087 this = self._parse_schema(this=table_parts) +1088 +1089 # exp.Properties.Location.POST_SCHEMA and POST_WITH +1090 temp_properties = self._parse_properties() +1091 if properties and temp_properties: +1092 properties.expressions.extend(temp_properties.expressions) +1093 elif temp_properties: +1094 properties = temp_properties +1095 +1096 self._match(TokenType.ALIAS) +1097 +1098 # exp.Properties.Location.POST_ALIAS +1099 if not ( +1100 self._match(TokenType.SELECT, advance=False) +1101 or self._match(TokenType.WITH, advance=False) +1102 or self._match(TokenType.L_PAREN, advance=False) +1103 ): +1104 temp_properties = self._parse_properties() +1105 if properties and temp_properties: +1106 properties.expressions.extend(temp_properties.expressions) +1107 elif temp_properties: +1108 properties = temp_properties +1109 +1110 expression = self._parse_ddl_select() +1111 +1112 if create_token.token_type == TokenType.TABLE: +1113 # exp.Properties.Location.POST_EXPRESSION +1114 temp_properties = self._parse_properties() +1115 if properties and temp_properties: +1116 properties.expressions.extend(temp_properties.expressions) +1117 elif temp_properties: +1118 properties = temp_properties +1119 +1120 indexes = [] +1121 while True: +1122 index = self._parse_create_table_index() +1123 +1124 # exp.Properties.Location.POST_INDEX +1125 if self._match(TokenType.PARTITION_BY, advance=False): +1126 temp_properties = self._parse_properties() +1127 if properties and temp_properties: +1128 properties.expressions.extend(temp_properties.expressions) +1129 elif temp_properties: +1130 properties = temp_properties +1131 +1132 if not index: +1133 break +1134 else: +1135 indexes.append(index) +1136 elif create_token.token_type == TokenType.VIEW: +1137 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): +1138 no_schema_binding = True +1139 +1140 return self.expression( +1141 exp.Create, +1142 this=this, +1143 kind=create_token.text, +1144 replace=replace, +1145 unique=unique, +1146 volatile=volatile, +1147 expression=expression, +1148 exists=exists, +1149 properties=properties, +1150 indexes=indexes, +1151 no_schema_binding=no_schema_binding, +1152 begin=begin, +1153 ) +1154 +1155 def _parse_property_before(self) -> t.Optional[exp.Expression]: +1156 self._match(TokenType.COMMA) 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") +1158 # parsers look to _prev for no/dual/default, so need to consume first +1159 self._match_text_seq("NO") +1160 self._match_text_seq("DUAL") +1161 self._match_text_seq("DEFAULT") +1162 +1163 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): +1164 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) 1165 -1166 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): -1167 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) -1168 -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) +1166 return None +1167 +1168 def _parse_property(self) -> t.Optional[exp.Expression]: +1169 if self._match_texts(self.PROPERTY_PARSERS): +1170 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) +1171 +1172 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): +1173 return self._parse_character_set(default=True) 1174 -1175 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): -1176 return self._parse_character_set(default=True) +1175 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): +1176 return self._parse_sortkey(compound=True) 1177 -1178 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): -1179 return self._parse_sortkey(compound=True) +1178 if self._match_text_seq("SQL", "SECURITY"): +1179 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) 1180 -1181 if self._match_text_seq("SQL", "SECURITY"): -1182 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) -1183 -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 ) +1181 assignment = self._match_pair( +1182 TokenType.VAR, TokenType.EQ, advance=False +1183 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) +1184 +1185 if assignment: +1186 key = self._parse_var_or_string() +1187 self._match(TokenType.EQ) +1188 return self.expression(exp.Property, this=key, value=self._parse_column()) +1189 +1190 return None +1191 +1192 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: +1193 self._match(TokenType.EQ) +1194 self._match(TokenType.ALIAS) +1195 return self.expression( +1196 exp_class, +1197 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), +1198 ) +1199 +1200 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: +1201 properties = [] 1202 -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) +1203 while True: +1204 if before: +1205 identified_property = self._parse_property_before() +1206 else: +1207 identified_property = self._parse_property() +1208 +1209 if not identified_property: +1210 break +1211 for p in ensure_collection(identified_property): +1212 properties.append(p) +1213 +1214 if properties: +1215 return self.expression(exp.Properties, expressions=properties) 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) +1217 return None +1218 +1219 def _parse_fallback(self, no=False) -> exp.Expression: +1220 self._match_text_seq("FALLBACK") +1221 return self.expression( +1222 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") +1223 ) +1224 +1225 def _parse_with_property( +1226 self, +1227 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: +1228 self._match(TokenType.WITH) +1229 if self._match(TokenType.L_PAREN, advance=False): +1230 return self._parse_wrapped_csv(self._parse_property) +1231 +1232 if self._match_text_seq("JOURNAL"): +1233 return self._parse_withjournaltable() 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) +1235 if self._match_text_seq("DATA"): +1236 return self._parse_withdata(no=False) +1237 elif self._match_text_seq("NO", "DATA"): +1238 return self._parse_withdata(no=True) +1239 +1240 if not self._next: +1241 return None 1242 -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 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) +1243 return self._parse_withisolatedloading() +1244 +1245 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html +1246 def _parse_definer(self) -> t.Optional[exp.Expression]: +1247 self._match(TokenType.EQ) +1248 +1249 user = self._parse_id_var() +1250 self._match(TokenType.PARAMETER) +1251 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) +1252 +1253 if not user or not host: +1254 return None 1255 -1256 if not user or not host: -1257 return None -1258 -1259 return exp.DefinerProperty(this=f"{user}@{host}") -1260 -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_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.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: +1256 return exp.DefinerProperty(this=f"{user}@{host}") +1257 +1258 def _parse_withjournaltable(self) -> exp.Expression: +1259 self._match(TokenType.TABLE) +1260 self._match(TokenType.EQ) +1261 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) +1262 +1263 def _parse_log(self, no=False) -> exp.Expression: +1264 self._match_text_seq("LOG") +1265 return self.expression(exp.LogProperty, no=no) +1266 +1267 def _parse_journal(self, no=False, dual=False) -> exp.Expression: +1268 before = self._match_text_seq("BEFORE") +1269 self._match_text_seq("JOURNAL") +1270 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) +1271 +1272 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: +1273 self._match_text_seq("NOT") +1274 self._match_text_seq("LOCAL") +1275 self._match_text_seq("AFTER", "JOURNAL") +1276 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) +1277 +1278 def _parse_checksum(self) -> exp.Expression: +1279 self._match_text_seq("CHECKSUM") +1280 self._match(TokenType.EQ) +1281 +1282 on = None +1283 if self._match(TokenType.ON): +1284 on = True +1285 elif self._match_text_seq("OFF"): +1286 on = False +1287 default = self._match(TokenType.DEFAULT) +1288 +1289 return self.expression( +1290 exp.ChecksumProperty, +1291 on=on, +1292 default=default, +1293 ) +1294 +1295 def _parse_freespace(self) -> exp.Expression: +1296 self._match_text_seq("FREESPACE") +1297 self._match(TokenType.EQ) +1298 return self.expression( +1299 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) +1300 ) +1301 +1302 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: +1303 self._match_text_seq("MERGEBLOCKRATIO") +1304 if self._match(TokenType.EQ): +1305 return self.expression( +1306 exp.MergeBlockRatioProperty, +1307 this=self._parse_number(), +1308 percent=self._match(TokenType.PERCENT), +1309 ) +1310 else: +1311 return self.expression( +1312 exp.MergeBlockRatioProperty, +1313 no=no, +1314 default=default, +1315 ) +1316 +1317 def _parse_datablocksize(self, default=None) -> exp.Expression: +1318 if default: +1319 self._match_text_seq("DATABLOCKSIZE") +1320 return self.expression(exp.DataBlocksizeProperty, default=True) +1321 elif self._match_texts(("MIN", "MINIMUM")): 1322 self._match_text_seq("DATABLOCKSIZE") -1323 return self.expression(exp.DataBlocksizeProperty, default=True) -1324 elif self._match_texts(("MIN", "MINIMUM")): +1323 return self.expression(exp.DataBlocksizeProperty, min=True) +1324 elif self._match_texts(("MAX", "MAXIMUM")): 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 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 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 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() +1326 return self.expression(exp.DataBlocksizeProperty, min=False) +1327 +1328 self._match_text_seq("DATABLOCKSIZE") +1329 self._match(TokenType.EQ) +1330 size = self._parse_number() +1331 units = None +1332 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): +1333 units = self._prev.text +1334 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) +1335 +1336 def _parse_blockcompression(self) -> exp.Expression: +1337 self._match_text_seq("BLOCKCOMPRESSION") +1338 self._match(TokenType.EQ) +1339 always = self._match_text_seq("ALWAYS") +1340 manual = self._match_text_seq("MANUAL") +1341 never = self._match_text_seq("NEVER") +1342 default = self._match_text_seq("DEFAULT") +1343 autotemp = None +1344 if self._match_text_seq("AUTOTEMP"): +1345 autotemp = self._parse_schema() +1346 +1347 return self.expression( +1348 exp.BlockCompressionProperty, +1349 always=always, +1350 manual=manual, +1351 never=never, +1352 default=default, +1353 autotemp=autotemp, +1354 ) +1355 +1356 def _parse_withisolatedloading(self) -> exp.Expression: +1357 no = self._match_text_seq("NO") +1358 concurrent = self._match_text_seq("CONCURRENT") +1359 self._match_text_seq("ISOLATED", "LOADING") +1360 for_all = self._match_text_seq("FOR", "ALL") +1361 for_insert = self._match_text_seq("FOR", "INSERT") +1362 for_none = self._match_text_seq("FOR", "NONE") +1363 return self.expression( +1364 exp.IsolatedLoadingProperty, +1365 no=no, +1366 concurrent=concurrent, +1367 for_all=for_all, +1368 for_insert=for_insert, +1369 for_none=for_none, +1370 ) +1371 +1372 def _parse_locking(self) -> exp.Expression: +1373 if self._match(TokenType.TABLE): +1374 kind = "TABLE" +1375 elif self._match(TokenType.VIEW): +1376 kind = "VIEW" +1377 elif self._match(TokenType.ROW): +1378 kind = "ROW" +1379 elif self._match_text_seq("DATABASE"): +1380 kind = "DATABASE" +1381 else: +1382 kind = None +1383 +1384 if kind in ("DATABASE", "TABLE", "VIEW"): +1385 this = self._parse_table_parts() +1386 else: +1387 this = None +1388 +1389 if self._match(TokenType.FOR): +1390 for_or_in = "FOR" +1391 elif self._match(TokenType.IN): +1392 for_or_in = "IN" +1393 else: +1394 for_or_in = None +1395 +1396 if self._match_text_seq("ACCESS"): +1397 lock_type = "ACCESS" +1398 elif self._match_texts(("EXCL", "EXCLUSIVE")): +1399 lock_type = "EXCLUSIVE" +1400 elif self._match_text_seq("SHARE"): +1401 lock_type = "SHARE" +1402 elif self._match_text_seq("READ"): +1403 lock_type = "READ" +1404 elif self._match_text_seq("WRITE"): +1405 lock_type = "WRITE" +1406 elif self._match_text_seq("CHECKSUM"): +1407 lock_type = "CHECKSUM" +1408 else: +1409 lock_type = None +1410 +1411 override = self._match_text_seq("OVERRIDE") +1412 +1413 return self.expression( +1414 exp.LockingProperty, +1415 this=this, +1416 kind=kind, +1417 for_or_in=for_or_in, +1418 lock_type=lock_type, +1419 override=override, +1420 ) +1421 +1422 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: +1423 if self._match(TokenType.PARTITION_BY): +1424 return self._parse_csv(self._parse_conjunction) +1425 return [] +1426 +1427 def _parse_partitioned_by(self) -> exp.Expression: +1428 self._match(TokenType.EQ) +1429 return self.expression( +1430 exp.PartitionedByProperty, +1431 this=self._parse_schema() or self._parse_bracket(self._parse_field()), +1432 ) +1433 +1434 def _parse_withdata(self, no=False) -> exp.Expression: +1435 if self._match_text_seq("AND", "STATISTICS"): +1436 statistics = True +1437 elif self._match_text_seq("AND", "NO", "STATISTICS"): +1438 statistics = False +1439 else: +1440 statistics = None +1441 +1442 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) +1443 +1444 def _parse_noprimaryindex(self) -> exp.Expression: +1445 self._match_text_seq("PRIMARY", "INDEX") +1446 return exp.NoPrimaryIndexProperty() +1447 +1448 def _parse_oncommit(self) -> exp.Expression: +1449 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") +1450 return exp.OnCommitProperty() +1451 +1452 def _parse_distkey(self) -> exp.Expression: +1453 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) 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() +1455 def _parse_create_like(self) -> t.Optional[exp.Expression]: +1456 table = self._parse_table(schema=True) +1457 options = [] +1458 while self._match_texts(("INCLUDING", "EXCLUDING")): +1459 this = self._prev.text.upper() +1460 id_var = self._parse_id_var() +1461 +1462 if not id_var: +1463 return None 1464 -1465 if not id_var: -1466 return None -1467 -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 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) -1554 -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 +1465 options.append( +1466 self.expression( +1467 exp.Property, +1468 this=this, +1469 value=exp.Var(this=id_var.this.upper()), +1470 ) +1471 ) +1472 return self.expression(exp.LikeProperty, this=table, expressions=options) +1473 +1474 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: +1475 return self.expression( +1476 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound +1477 ) +1478 +1479 def _parse_character_set(self, default: bool = False) -> exp.Expression: +1480 self._match(TokenType.EQ) +1481 return self.expression( +1482 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default +1483 ) +1484 +1485 def _parse_returns(self) -> exp.Expression: +1486 value: t.Optional[exp.Expression] +1487 is_table = self._match(TokenType.TABLE) +1488 +1489 if is_table: +1490 if self._match(TokenType.LT): +1491 value = self.expression( +1492 exp.Schema, +1493 this="TABLE", +1494 expressions=self._parse_csv(self._parse_struct_kwargs), +1495 ) +1496 if not self._match(TokenType.GT): +1497 self.raise_error("Expecting >") +1498 else: +1499 value = self._parse_schema(exp.Var(this="TABLE")) +1500 else: +1501 value = self._parse_types() +1502 +1503 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) +1504 +1505 def _parse_temporary(self, global_=False) -> exp.Expression: +1506 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" +1507 return self.expression(exp.TemporaryProperty, global_=global_) +1508 +1509 def _parse_describe(self) -> exp.Expression: +1510 kind = self._match_set(self.CREATABLES) and self._prev.text +1511 this = self._parse_table() +1512 +1513 return self.expression(exp.Describe, this=this, kind=kind) +1514 +1515 def _parse_insert(self) -> exp.Expression: +1516 overwrite = self._match(TokenType.OVERWRITE) +1517 local = self._match(TokenType.LOCAL) +1518 alternative = None +1519 +1520 if self._match_text_seq("DIRECTORY"): +1521 this: t.Optional[exp.Expression] = self.expression( +1522 exp.Directory, +1523 this=self._parse_var_or_string(), +1524 local=local, +1525 row_format=self._parse_row_format(match_row=True), +1526 ) +1527 else: +1528 if self._match(TokenType.OR): +1529 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text +1530 +1531 self._match(TokenType.INTO) +1532 self._match(TokenType.TABLE) +1533 this = self._parse_table(schema=True) +1534 +1535 return self.expression( +1536 exp.Insert, +1537 this=this, +1538 exists=self._parse_exists(), +1539 partition=self._parse_partition(), +1540 expression=self._parse_ddl_select(), +1541 returning=self._parse_returning(), +1542 overwrite=overwrite, +1543 alternative=alternative, +1544 ) +1545 +1546 def _parse_returning(self) -> t.Optional[exp.Expression]: +1547 if not self._match(TokenType.RETURNING): +1548 return None +1549 +1550 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) +1551 +1552 def _parse_row(self) -> t.Optional[exp.Expression]: +1553 if not self._match(TokenType.FORMAT): +1554 return None +1555 return self._parse_row_format() +1556 +1557 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: +1558 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): +1559 return None +1560 +1561 if self._match_text_seq("SERDE"): +1562 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) 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.LoadData, -1595 this=self._parse_table(schema=True), -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 ) +1564 self._match_text_seq("DELIMITED") +1565 +1566 kwargs = {} +1567 +1568 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): +1569 kwargs["fields"] = self._parse_string() +1570 if self._match_text_seq("ESCAPED", "BY"): +1571 kwargs["escaped"] = self._parse_string() +1572 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): +1573 kwargs["collection_items"] = self._parse_string() +1574 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): +1575 kwargs["map_keys"] = self._parse_string() +1576 if self._match_text_seq("LINES", "TERMINATED", "BY"): +1577 kwargs["lines"] = self._parse_string() +1578 if self._match_text_seq("NULL", "DEFINED", "AS"): +1579 kwargs["null"] = self._parse_string() +1580 +1581 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore +1582 +1583 def _parse_load_data(self) -> exp.Expression: +1584 local = self._match(TokenType.LOCAL) +1585 self._match_text_seq("INPATH") +1586 inpath = self._parse_string() +1587 overwrite = self._match(TokenType.OVERWRITE) +1588 self._match_pair(TokenType.INTO, TokenType.TABLE) +1589 +1590 return self.expression( +1591 exp.LoadData, +1592 this=self._parse_table(schema=True), +1593 local=local, +1594 overwrite=overwrite, +1595 inpath=inpath, +1596 partition=self._parse_partition(), +1597 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), +1598 serde=self._match_text_seq("SERDE") and self._parse_string(), +1599 ) +1600 +1601 def _parse_delete(self) -> exp.Expression: +1602 self._match(TokenType.FROM) 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 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 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 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 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 ) +1604 return self.expression( +1605 exp.Delete, +1606 this=self._parse_table(schema=True), +1607 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), +1608 where=self._parse_where(), +1609 returning=self._parse_returning(), +1610 ) +1611 +1612 def _parse_update(self) -> exp.Expression: +1613 return self.expression( +1614 exp.Update, +1615 **{ # type: ignore +1616 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), +1617 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), +1618 "from": self._parse_from(), +1619 "where": self._parse_where(), +1620 "returning": self._parse_returning(), +1621 }, +1622 ) +1623 +1624 def _parse_uncache(self) -> exp.Expression: +1625 if not self._match(TokenType.TABLE): +1626 self.raise_error("Expecting TABLE after UNCACHE") +1627 +1628 return self.expression( +1629 exp.Uncache, +1630 exists=self._parse_exists(), +1631 this=self._parse_table(schema=True), +1632 ) +1633 +1634 def _parse_cache(self) -> exp.Expression: +1635 lazy = self._match(TokenType.LAZY) +1636 self._match(TokenType.TABLE) +1637 table = self._parse_table(schema=True) +1638 options = [] +1639 +1640 if self._match(TokenType.OPTIONS): +1641 self._match_l_paren() +1642 k = self._parse_string() +1643 self._match(TokenType.EQ) +1644 v = self._parse_string() +1645 options = [k, v] +1646 self._match_r_paren() +1647 +1648 self._match(TokenType.ALIAS) +1649 return self.expression( +1650 exp.Cache, +1651 this=table, +1652 lazy=lazy, +1653 options=options, +1654 expression=self._parse_select(nested=True), +1655 ) +1656 +1657 def _parse_partition(self) -> t.Optional[exp.Expression]: +1658 if not self._match(TokenType.PARTITION): +1659 return None +1660 +1661 return self.expression( +1662 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) +1663 ) +1664 +1665 def _parse_value(self) -> exp.Expression: +1666 if self._match(TokenType.L_PAREN): +1667 expressions = self._parse_csv(self._parse_conjunction) +1668 self._match_r_paren() +1669 return self.expression(exp.Tuple, expressions=expressions) +1670 +1671 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. +1672 # Source: https://prestodb.io/docs/current/sql/values.html +1673 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) +1674 +1675 def _parse_select( +1676 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True +1677 ) -> t.Optional[exp.Expression]: +1678 cte = self._parse_with() +1679 if cte: +1680 this = self._parse_statement() +1681 +1682 if not this: +1683 self.raise_error("Failed to parse any statement following CTE") +1684 return cte +1685 +1686 if "with" in this.arg_types: +1687 this.set("with", cte) +1688 else: +1689 self.raise_error(f"{this.key} does not support CTE") +1690 this = cte +1691 elif self._match(TokenType.SELECT): +1692 comments = self._prev_comments +1693 +1694 hint = self._parse_hint() +1695 all_ = self._match(TokenType.ALL) +1696 distinct = self._match(TokenType.DISTINCT) +1697 +1698 if distinct: +1699 distinct = self.expression( +1700 exp.Distinct, +1701 on=self._parse_value() if self._match(TokenType.ON) else None, +1702 ) +1703 +1704 if all_ and distinct: +1705 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") 1706 -1707 if all_ and distinct: -1708 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") +1707 limit = self._parse_limit(top=True) +1708 expressions = self._parse_csv(self._parse_expression) 1709 -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 +1710 this = self.expression( +1711 exp.Select, +1712 hint=hint, +1713 distinct=distinct, +1714 expressions=expressions, +1715 limit=limit, +1716 ) +1717 this.comments = comments +1718 +1719 into = self._parse_into() +1720 if into: +1721 this.set("into", into) +1722 +1723 from_ = self._parse_from() +1724 if from_: +1725 this.set("from", from_) +1726 +1727 self._parse_query_modifiers(this) +1728 elif (table or nested) and self._match(TokenType.L_PAREN): +1729 this = self._parse_table() if table else self._parse_select(nested=True) 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 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 +1731 this = self._parse_set_operations(this) +1732 self._match_r_paren() +1733 +1734 # early return so that subquery unions aren't parsed again +1735 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 +1736 # Union ALL should be a property of the top select node, not the subquery +1737 return self._parse_subquery(this, parse_alias=parse_subquery_alias) +1738 elif self._match(TokenType.VALUES): +1739 this = self.expression( +1740 exp.Values, +1741 expressions=self._parse_csv(self._parse_value), +1742 alias=self._parse_table_alias(), +1743 ) +1744 else: +1745 this = None +1746 +1747 return self._parse_set_operations(this) +1748 +1749 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: +1750 if not skip_with_token and not self._match(TokenType.WITH): +1751 return None +1752 +1753 recursive = self._match(TokenType.RECURSIVE) +1754 +1755 expressions = [] +1756 while True: +1757 expressions.append(self._parse_cte()) +1758 +1759 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): +1760 break +1761 else: +1762 self._match(TokenType.WITH) +1763 +1764 return self.expression(exp.With, expressions=expressions, recursive=recursive) +1765 +1766 def _parse_cte(self) -> exp.Expression: +1767 alias = self._parse_table_alias() +1768 if not alias or not alias.this: +1769 self.raise_error("Expected CTE to have alias") +1770 +1771 self._match(TokenType.ALIAS) +1772 +1773 return self.expression( +1774 exp.CTE, +1775 this=self._parse_wrapped(self._parse_statement), +1776 alias=alias, +1777 ) +1778 +1779 def _parse_table_alias( +1780 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None +1781 ) -> t.Optional[exp.Expression]: +1782 any_token = self._match(TokenType.ALIAS) +1783 alias = self._parse_id_var( +1784 any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS +1785 ) +1786 index = self._index +1787 +1788 if self._match(TokenType.L_PAREN): +1789 columns = self._parse_csv(self._parse_function_parameter) +1790 self._match_r_paren() if columns else self._retreat(index) +1791 else: +1792 columns = None +1793 +1794 if not alias and not columns: +1795 return None 1796 -1797 if not alias and not columns: -1798 return None -1799 -1800 return self.expression(exp.TableAlias, this=alias, columns=columns) -1801 -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 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 +1797 return self.expression(exp.TableAlias, this=alias, columns=columns) +1798 +1799 def _parse_subquery( +1800 self, this: t.Optional[exp.Expression], parse_alias: bool = True +1801 ) -> exp.Expression: +1802 return self.expression( +1803 exp.Subquery, +1804 this=this, +1805 pivots=self._parse_pivots(), +1806 alias=self._parse_table_alias() if parse_alias else None, +1807 ) +1808 +1809 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: +1810 if not isinstance(this, self.MODIFIABLES): +1811 return +1812 +1813 table = isinstance(this, exp.Table) +1814 +1815 while True: +1816 lateral = self._parse_lateral() +1817 join = self._parse_join() +1818 comma = None if table else self._match(TokenType.COMMA) +1819 if lateral: +1820 this.append("laterals", lateral) +1821 if join: +1822 this.append("joins", join) +1823 if comma: +1824 this.args["from"].append("expressions", self._parse_table()) +1825 if not (lateral or join or comma): +1826 break +1827 +1828 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): +1829 expression = parser(self) 1830 -1831 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): -1832 expression = parser(self) +1831 if expression: +1832 this.set(key, expression) 1833 -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 def _parse_into(self) -> t.Optional[exp.Expression]: -1847 if not self._match(TokenType.INTO): -1848 return None -1849 -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 +1834 def _parse_hint(self) -> t.Optional[exp.Expression]: +1835 if self._match(TokenType.HINT): +1836 hints = self._parse_csv(self._parse_function) +1837 if not self._match_pair(TokenType.STAR, TokenType.SLASH): +1838 self.raise_error("Expected */ after HINT") +1839 return self.expression(exp.Hint, expressions=hints) +1840 +1841 return None +1842 +1843 def _parse_into(self) -> t.Optional[exp.Expression]: +1844 if not self._match(TokenType.INTO): +1845 return None +1846 +1847 temp = self._match(TokenType.TEMPORARY) +1848 unlogged = self._match(TokenType.UNLOGGED) +1849 self._match(TokenType.TABLE) +1850 +1851 return self.expression( +1852 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged +1853 ) +1854 +1855 def _parse_from(self) -> t.Optional[exp.Expression]: +1856 if not self._match(TokenType.FROM): +1857 return None +1858 +1859 return self.expression( +1860 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) +1861 ) +1862 +1863 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: +1864 if not self._match(TokenType.MATCH_RECOGNIZE): +1865 return None +1866 self._match_l_paren() +1867 +1868 partition = self._parse_partition_by() +1869 order = self._parse_order() +1870 measures = ( +1871 self._parse_alias(self._parse_conjunction()) +1872 if self._match_text_seq("MEASURES") +1873 else None +1874 ) +1875 +1876 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): +1877 rows = exp.Var(this="ONE ROW PER MATCH") +1878 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): +1879 text = "ALL ROWS PER MATCH" +1880 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): +1881 text += f" SHOW EMPTY MATCHES" +1882 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): +1883 text += f" OMIT EMPTY MATCHES" +1884 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): +1885 text += f" WITH UNMATCHED ROWS" +1886 rows = exp.Var(this=text) +1887 else: +1888 rows = None +1889 +1890 if self._match_text_seq("AFTER", "MATCH", "SKIP"): +1891 text = "AFTER MATCH SKIP" +1892 if self._match_text_seq("PAST", "LAST", "ROW"): +1893 text += f" PAST LAST ROW" +1894 elif self._match_text_seq("TO", "NEXT", "ROW"): +1895 text += f" TO NEXT ROW" +1896 elif self._match_text_seq("TO", "FIRST"): +1897 text += f" TO FIRST {self._advance_any().text}" # type: ignore +1898 elif self._match_text_seq("TO", "LAST"): +1899 text += f" TO LAST {self._advance_any().text}" # type: ignore +1900 after = exp.Var(this=text) +1901 else: +1902 after = None +1903 +1904 if self._match_text_seq("PATTERN"): +1905 self._match_l_paren() 1906 -1907 if self._match_text_seq("PATTERN"): -1908 self._match_l_paren() +1907 if not self._curr: +1908 self.raise_error("Expecting )", self._curr) 1909 -1910 if not self._curr: -1911 self.raise_error("Expecting )", self._curr) +1910 paren = 1 +1911 start = self._curr 1912 -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 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 ) +1913 while self._curr and paren > 0: +1914 if self._curr.token_type == TokenType.L_PAREN: +1915 paren += 1 +1916 if self._curr.token_type == TokenType.R_PAREN: +1917 paren -= 1 +1918 end = self._prev +1919 self._advance() +1920 if paren > 0: +1921 self.raise_error("Expecting )", self._curr) +1922 pattern = exp.Var(this=self._find_sql(start, end)) +1923 else: +1924 pattern = None +1925 +1926 define = ( +1927 self._parse_alias(self._parse_conjunction()) if self._match_text_seq("DEFINE") else None +1928 ) +1929 self._match_r_paren() +1930 +1931 return self.expression( +1932 exp.MatchRecognize, +1933 partition_by=partition, +1934 order=order, +1935 measures=measures, +1936 rows=rows, +1937 after=after, +1938 pattern=pattern, +1939 define=define, +1940 ) +1941 +1942 def _parse_lateral(self) -> t.Optional[exp.Expression]: +1943 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) +1944 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) +1945 +1946 if outer_apply or cross_apply: +1947 this = self._parse_select(table=True) +1948 view = None +1949 outer = not cross_apply +1950 elif self._match(TokenType.LATERAL): +1951 this = self._parse_select(table=True) +1952 view = self._match(TokenType.VIEW) +1953 outer = self._match(TokenType.OUTER) +1954 else: +1955 return None +1956 +1957 if not this: +1958 this = self._parse_function() or self._parse_id_var(any_token=False) +1959 while self._match(TokenType.DOT): +1960 this = exp.Dot( +1961 this=this, +1962 expression=self._parse_function() or self._parse_id_var(any_token=False), +1963 ) +1964 +1965 table_alias: t.Optional[exp.Expression] +1966 +1967 if view: +1968 table = self._parse_id_var(any_token=False) +1969 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] +1970 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) +1971 else: +1972 table_alias = self._parse_table_alias() +1973 +1974 expression = self.expression( +1975 exp.Lateral, +1976 this=this, +1977 view=view, +1978 outer=outer, +1979 alias=table_alias, +1980 ) +1981 +1982 if outer_apply or cross_apply: +1983 return self.expression(exp.Join, this=expression, side=None if cross_apply else "LEFT") 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 ) +1985 return expression +1986 +1987 def _parse_join_side_and_kind( +1988 self, +1989 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: +1990 return ( +1991 self._match(TokenType.NATURAL) and self._prev, +1992 self._match_set(self.JOIN_SIDES) and self._prev, +1993 self._match_set(self.JOIN_KINDS) and self._prev, +1994 ) +1995 +1996 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: +1997 natural, side, kind = self._parse_join_side_and_kind() 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() +1999 if not skip_join_token and not self._match(TokenType.JOIN): +2000 return None 2001 -2002 if not skip_join_token and not self._match(TokenType.JOIN): -2003 return None -2004 -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 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() +2002 kwargs: t.Dict[ +2003 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] +2004 ] = {"this": self._parse_table()} +2005 +2006 if natural: +2007 kwargs["natural"] = True +2008 if side: +2009 kwargs["side"] = side.text +2010 if kind: +2011 kwargs["kind"] = kind.text +2012 +2013 if self._match(TokenType.ON): +2014 kwargs["on"] = self._parse_conjunction() +2015 elif self._match(TokenType.USING): +2016 kwargs["using"] = self._parse_wrapped_id_vars() +2017 +2018 return self.expression(exp.Join, **kwargs) # type: ignore +2019 +2020 def _parse_index(self) -> exp.Expression: +2021 index = self._parse_id_var() +2022 self._match(TokenType.ON) +2023 self._match(TokenType.TABLE) # hive +2024 +2025 return self.expression( +2026 exp.Index, +2027 this=index, +2028 table=self.expression(exp.Table, this=self._parse_id_var()), +2029 columns=self._parse_expression(), +2030 ) +2031 +2032 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: +2033 unique = self._match(TokenType.UNIQUE) +2034 primary = self._match_text_seq("PRIMARY") +2035 amp = self._match_text_seq("AMP") +2036 if not self._match(TokenType.INDEX): +2037 return None +2038 index = self._parse_id_var() +2039 columns = None +2040 if self._match(TokenType.L_PAREN, advance=False): +2041 columns = self._parse_wrapped_csv(self._parse_column) +2042 return self.expression( +2043 exp.Index, +2044 this=index, +2045 columns=columns, +2046 unique=unique, +2047 primary=primary, +2048 amp=amp, +2049 ) +2050 +2051 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: +2052 catalog = None +2053 db = None +2054 table = (not schema and self._parse_function()) or self._parse_id_var(any_token=False) +2055 +2056 while self._match(TokenType.DOT): +2057 if catalog: +2058 # This allows nesting the table in arbitrarily many dot expressions if needed +2059 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) +2060 else: +2061 catalog = db +2062 db = table +2063 table = self._parse_id_var() +2064 +2065 if not table: +2066 self.raise_error(f"Expected table name but got {self._curr}") 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() +2068 return self.expression( +2069 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() +2070 ) +2071 +2072 def _parse_table( +2073 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None +2074 ) -> t.Optional[exp.Expression]: +2075 lateral = self._parse_lateral() +2076 +2077 if lateral: +2078 return lateral 2079 -2080 if lateral: -2081 return lateral -2082 -2083 unnest = self._parse_unnest() +2080 unnest = self._parse_unnest() +2081 +2082 if unnest: +2083 return unnest 2084 -2085 if unnest: -2086 return unnest -2087 -2088 values = self._parse_derived_table_values() +2085 values = self._parse_derived_table_values() +2086 +2087 if values: +2088 return values 2089 -2090 if values: -2091 return values -2092 -2093 subquery = self._parse_select(table=True) +2090 subquery = self._parse_select(table=True) +2091 +2092 if subquery: +2093 return subquery 2094 -2095 if subquery: -2096 return subquery -2097 -2098 this = self._parse_table_parts(schema=schema) +2095 this = self._parse_table_parts(schema=schema) +2096 +2097 if schema: +2098 return self._parse_schema(this=this) 2099 -2100 if schema: -2101 return self._parse_schema(this=this) +2100 if self.alias_post_tablesample: +2101 table_sample = self._parse_table_sample() 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) +2103 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) +2104 +2105 if alias: +2106 this.set("alias", alias) 2107 -2108 if alias: -2109 this.set("alias", alias) +2108 if not this.args.get("pivots"): +2109 this.set("pivots", self._parse_pivots()) 2110 -2111 if not this.args.get("pivots"): -2112 this.set("pivots", self._parse_pivots()) -2113 -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() +2111 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): +2112 this.set( +2113 "hints", +2114 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), +2115 ) +2116 self._match_r_paren() +2117 +2118 if not self.alias_post_tablesample: +2119 table_sample = self._parse_table_sample() 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 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 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) +2121 if table_sample: +2122 table_sample.set("this", this) +2123 this = table_sample +2124 +2125 return this +2126 +2127 def _parse_unnest(self) -> t.Optional[exp.Expression]: +2128 if not self._match(TokenType.UNNEST): +2129 return None +2130 +2131 expressions = self._parse_wrapped_csv(self._parse_column) +2132 ordinality = bool(self._match(TokenType.WITH) and self._match(TokenType.ORDINALITY)) +2133 alias = self._parse_table_alias() +2134 +2135 if alias and self.unnest_column_only: +2136 if alias.args.get("columns"): +2137 self.raise_error("Unexpected extra column alias in unnest.") +2138 alias.set("columns", [alias.this]) +2139 alias.set("this", None) +2140 +2141 offset = None +2142 if self._match_pair(TokenType.WITH, TokenType.OFFSET): +2143 self._match(TokenType.ALIAS) +2144 offset = self._parse_conjunction() +2145 +2146 return self.expression( +2147 exp.Unnest, +2148 expressions=expressions, +2149 ordinality=ordinality, +2150 alias=alias, +2151 offset=offset, +2152 ) +2153 +2154 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: +2155 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) +2156 if not is_derived and not self._match(TokenType.VALUES): +2157 return None +2158 +2159 expressions = self._parse_csv(self._parse_value) +2160 +2161 if is_derived: +2162 self._match_r_paren() 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 +2164 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) +2165 +2166 def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: +2167 if not self._match(TokenType.TABLE_SAMPLE) and not ( +2168 as_modifier and self._match_text_seq("USING", "SAMPLE") +2169 ): +2170 return None +2171 +2172 bucket_numerator = None +2173 bucket_denominator = None +2174 bucket_field = None +2175 percent = None +2176 rows = None +2177 size = None +2178 seed = None +2179 +2180 kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" +2181 method = self._parse_var(tokens=(TokenType.ROW,)) 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 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 ) +2183 self._match(TokenType.L_PAREN) +2184 +2185 num = self._parse_number() +2186 +2187 if self._match(TokenType.BUCKET): +2188 bucket_numerator = self._parse_number() +2189 self._match(TokenType.OUT_OF) +2190 bucket_denominator = bucket_denominator = self._parse_number() +2191 self._match(TokenType.ON) +2192 bucket_field = self._parse_field() +2193 elif self._match_set((TokenType.PERCENT, TokenType.MOD)): +2194 percent = num +2195 elif self._match(TokenType.ROWS): +2196 rows = num +2197 else: +2198 size = num +2199 +2200 self._match(TokenType.R_PAREN) +2201 +2202 if self._match(TokenType.L_PAREN): +2203 method = self._parse_var() +2204 seed = self._match(TokenType.COMMA) and self._parse_number() +2205 self._match_r_paren() +2206 elif self._match_texts(("SEED", "REPEATABLE")): +2207 seed = self._parse_wrapped(self._parse_number) +2208 +2209 return self.expression( +2210 exp.TableSample, +2211 method=method, +2212 bucket_numerator=bucket_numerator, +2213 bucket_denominator=bucket_denominator, +2214 bucket_field=bucket_field, +2215 percent=percent, +2216 rows=rows, +2217 size=size, +2218 seed=seed, +2219 kind=kind, +2220 ) +2221 +2222 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: +2223 return list(iter(self._parse_pivot, None)) 2224 -2225 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: -2226 return list(iter(self._parse_pivot, None)) +2225 def _parse_pivot(self) -> t.Optional[exp.Expression]: +2226 index = self._index 2227 -2228 def _parse_pivot(self) -> t.Optional[exp.Expression]: -2229 index = self._index -2230 -2231 if self._match(TokenType.PIVOT): -2232 unpivot = False -2233 elif self._match(TokenType.UNPIVOT): -2234 unpivot = True -2235 else: -2236 return None +2228 if self._match(TokenType.PIVOT): +2229 unpivot = False +2230 elif self._match(TokenType.UNPIVOT): +2231 unpivot = True +2232 else: +2233 return None +2234 +2235 expressions = [] +2236 field = None 2237 -2238 expressions = [] -2239 field = None -2240 -2241 if not self._match(TokenType.L_PAREN): -2242 self._retreat(index) -2243 return None -2244 -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())) +2238 if not self._match(TokenType.L_PAREN): +2239 self._retreat(index) +2240 return None +2241 +2242 if unpivot: +2243 expressions = self._parse_csv(self._parse_column) +2244 else: +2245 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) +2246 +2247 if not self._match(TokenType.FOR): +2248 self.raise_error("Expecting FOR") 2249 -2250 if not self._match(TokenType.FOR): -2251 self.raise_error("Expecting FOR") -2252 -2253 value = self._parse_column() +2250 value = self._parse_column() +2251 +2252 if not self._match(TokenType.IN): +2253 self.raise_error("Expecting IN") 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) +2255 field = self._parse_in(value) +2256 +2257 self._match_r_paren() +2258 +2259 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) +2260 +2261 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): +2262 pivot.set("alias", self._parse_table_alias()) 2263 -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 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) +2264 return pivot +2265 +2266 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: +2267 if not skip_where_token and not self._match(TokenType.WHERE): +2268 return None +2269 +2270 return self.expression( +2271 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() +2272 ) +2273 +2274 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: +2275 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): +2276 return None +2277 +2278 elements = defaultdict(list) +2279 +2280 while True: +2281 expressions = self._parse_csv(self._parse_conjunction) +2282 if expressions: +2283 elements["expressions"].extend(expressions) +2284 +2285 grouping_sets = self._parse_grouping_sets() +2286 if grouping_sets: +2287 elements["grouping_sets"].extend(grouping_sets) +2288 +2289 rollup = None +2290 cube = None 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)) +2292 with_ = self._match(TokenType.WITH) +2293 if self._match(TokenType.ROLLUP): +2294 rollup = with_ or self._parse_wrapped_csv(self._parse_column) +2295 elements["rollup"].extend(ensure_list(rollup)) +2296 +2297 if self._match(TokenType.CUBE): +2298 cube = with_ or self._parse_wrapped_csv(self._parse_column) +2299 elements["cube"].extend(ensure_list(cube)) +2300 +2301 if not (expressions or grouping_sets or rollup or cube): +2302 break 2303 -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_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 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 self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) -2371 -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 ) +2304 return self.expression(exp.Group, **elements) # type: ignore +2305 +2306 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +2307 if not self._match(TokenType.GROUPING_SETS): +2308 return None +2309 +2310 return self._parse_wrapped_csv(self._parse_grouping_set) +2311 +2312 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: +2313 if self._match(TokenType.L_PAREN): +2314 grouping_set = self._parse_csv(self._parse_column) +2315 self._match_r_paren() +2316 return self.expression(exp.Tuple, expressions=grouping_set) +2317 +2318 return self._parse_column() +2319 +2320 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: +2321 if not skip_having_token and not self._match(TokenType.HAVING): +2322 return None +2323 return self.expression(exp.Having, this=self._parse_conjunction()) +2324 +2325 def _parse_qualify(self) -> t.Optional[exp.Expression]: +2326 if not self._match(TokenType.QUALIFY): +2327 return None +2328 return self.expression(exp.Qualify, this=self._parse_conjunction()) +2329 +2330 def _parse_order( +2331 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False +2332 ) -> t.Optional[exp.Expression]: +2333 if not skip_order_token and not self._match(TokenType.ORDER_BY): +2334 return this +2335 +2336 return self.expression( +2337 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) +2338 ) +2339 +2340 def _parse_sort( +2341 self, token_type: TokenType, exp_class: t.Type[exp.Expression] +2342 ) -> t.Optional[exp.Expression]: +2343 if not self._match(token_type): +2344 return None +2345 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) +2346 +2347 def _parse_ordered(self) -> exp.Expression: +2348 this = self._parse_conjunction() +2349 self._match(TokenType.ASC) +2350 is_desc = self._match(TokenType.DESC) +2351 is_nulls_first = self._match(TokenType.NULLS_FIRST) +2352 is_nulls_last = self._match(TokenType.NULLS_LAST) +2353 desc = is_desc or False +2354 asc = not desc +2355 nulls_first = is_nulls_first or False +2356 explicitly_null_ordered = is_nulls_first or is_nulls_last +2357 if ( +2358 not explicitly_null_ordered +2359 and ( +2360 (asc and self.null_ordering == "nulls_are_small") +2361 or (desc and self.null_ordering != "nulls_are_small") +2362 ) +2363 and self.null_ordering != "nulls_are_last" +2364 ): +2365 nulls_first = True +2366 +2367 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) +2368 +2369 def _parse_limit( +2370 self, this: t.Optional[exp.Expression] = None, top: bool = False +2371 ) -> t.Optional[exp.Expression]: +2372 if self._match(TokenType.TOP if top else TokenType.LIMIT): +2373 limit_paren = self._match(TokenType.L_PAREN) +2374 limit_exp = self.expression( +2375 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() +2376 ) +2377 +2378 if limit_paren: +2379 self._match_r_paren() 2380 -2381 if limit_paren: -2382 self._match_r_paren() -2383 -2384 return limit_exp -2385 -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 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 ) +2381 return limit_exp +2382 +2383 if self._match(TokenType.FETCH): +2384 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) +2385 direction = self._prev.text if direction else "FIRST" +2386 count = self._parse_number() +2387 self._match_set((TokenType.ROW, TokenType.ROWS)) +2388 self._match(TokenType.ONLY) +2389 return self.expression(exp.Fetch, direction=direction, count=count) +2390 +2391 return this +2392 +2393 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +2394 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): +2395 return this +2396 +2397 count = self._parse_number() +2398 self._match_set((TokenType.ROW, TokenType.ROWS)) +2399 return self.expression(exp.Offset, this=this, expression=count) +2400 +2401 def _parse_lock(self) -> t.Optional[exp.Expression]: +2402 if self._match_text_seq("FOR", "UPDATE"): +2403 return self.expression(exp.Lock, update=True) +2404 if self._match_text_seq("FOR", "SHARE"): +2405 return self.expression(exp.Lock, update=False) +2406 +2407 return None +2408 +2409 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2410 if not self._match_set(self.SET_OPERATIONS): +2411 return this +2412 +2413 token_type = self._prev.token_type +2414 +2415 if token_type == TokenType.UNION: +2416 expression = exp.Union +2417 elif token_type == TokenType.EXCEPT: +2418 expression = exp.Except +2419 else: +2420 expression = exp.Intersect +2421 +2422 return self.expression( +2423 expression, +2424 this=this, +2425 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), +2426 expression=self._parse_set_operations(self._parse_select(nested=True)), +2427 ) +2428 +2429 def _parse_expression(self) -> t.Optional[exp.Expression]: +2430 return self._parse_alias(self._parse_conjunction()) 2431 -2432 def _parse_expression(self) -> t.Optional[exp.Expression]: -2433 return self._parse_alias(self._parse_conjunction()) +2432 def _parse_conjunction(self) -> t.Optional[exp.Expression]: +2433 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) 2434 -2435 def _parse_conjunction(self) -> t.Optional[exp.Expression]: -2436 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) +2435 def _parse_equality(self) -> t.Optional[exp.Expression]: +2436 return self._parse_tokens(self._parse_comparison, self.EQUALITY) 2437 -2438 def _parse_equality(self) -> t.Optional[exp.Expression]: -2439 return self._parse_tokens(self._parse_comparison, self.EQUALITY) +2438 def _parse_comparison(self) -> t.Optional[exp.Expression]: +2439 return self._parse_tokens(self._parse_range, self.COMPARISON) 2440 -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()) +2441 def _parse_range(self) -> t.Optional[exp.Expression]: +2442 this = self._parse_bitwise() +2443 negate = self._match(TokenType.NOT) +2444 +2445 if self._match_set(self.RANGE_PARSERS): +2446 this = self.RANGE_PARSERS[self._prev.token_type](self, this) +2447 elif self._match(TokenType.ISNULL): +2448 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2449 +2450 # Postgres supports ISNULL and NOTNULL for conditions. +2451 # https://blog.andreiavram.ro/postgresql-null-composite-type/ +2452 if self._match(TokenType.NOTNULL): +2453 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2454 this = self.expression(exp.Not, this=this) +2455 +2456 if negate: 2457 this = self.expression(exp.Not, this=this) 2458 -2459 if negate: -2460 this = self.expression(exp.Not, this=this) +2459 if self._match(TokenType.IS): +2460 this = self._parse_is(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_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()) +2462 return this +2463 +2464 def _parse_is(self, this: t.Optional[exp.Expression]) -> exp.Expression: +2465 negate = self._match(TokenType.NOT) +2466 if self._match(TokenType.DISTINCT_FROM): +2467 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ +2468 return self.expression(klass, this=this, expression=self._parse_expression()) +2469 +2470 this = self.expression( +2471 exp.Is, +2472 this=this, +2473 expression=self._parse_null() or self._parse_boolean(), +2474 ) +2475 return self.expression(exp.Not, this=this) if negate else this +2476 +2477 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: +2478 unnest = self._parse_unnest() +2479 if unnest: +2480 this = self.expression(exp.In, this=this, unnest=unnest) +2481 elif self._match(TokenType.L_PAREN): +2482 expressions = self._parse_csv(self._parse_select_or_expression) +2483 +2484 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): +2485 this = self.expression(exp.In, this=this, query=expressions[0]) +2486 else: +2487 this = self.expression(exp.In, this=this, expressions=expressions) +2488 +2489 self._match_r_paren() +2490 else: +2491 this = self.expression(exp.In, this=this, field=self._parse_field()) +2492 +2493 return this +2494 +2495 def _parse_between(self, this: exp.Expression) -> exp.Expression: +2496 low = self._parse_bitwise() +2497 self._match(TokenType.AND) +2498 high = self._parse_bitwise() +2499 return self.expression(exp.Between, this=this, low=low, high=high) +2500 +2501 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2502 if not self._match(TokenType.ESCAPE): +2503 return this +2504 return self.expression(exp.Escape, this=this, expression=self._parse_string()) +2505 +2506 def _parse_bitwise(self) -> t.Optional[exp.Expression]: +2507 this = self._parse_term() 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 +2509 while True: +2510 if self._match_set(self.BITWISE): +2511 this = self.expression( +2512 self.BITWISE[self._prev.token_type], +2513 this=this, +2514 expression=self._parse_term(), +2515 ) +2516 elif self._match_pair(TokenType.LT, TokenType.LT): +2517 this = self.expression( +2518 exp.BitwiseLeftShift, this=this, expression=self._parse_term() +2519 ) +2520 elif self._match_pair(TokenType.GT, TokenType.GT): +2521 this = self.expression( +2522 exp.BitwiseRightShift, this=this, expression=self._parse_term() +2523 ) +2524 else: +2525 break +2526 +2527 return this +2528 +2529 def _parse_term(self) -> t.Optional[exp.Expression]: +2530 return self._parse_tokens(self._parse_factor, self.TERM) 2531 -2532 def _parse_term(self) -> t.Optional[exp.Expression]: -2533 return self._parse_tokens(self._parse_factor, self.TERM) +2532 def _parse_factor(self) -> t.Optional[exp.Expression]: +2533 return self._parse_tokens(self._parse_unary, self.FACTOR) 2534 -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 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 +2535 def _parse_unary(self) -> t.Optional[exp.Expression]: +2536 if self._match_set(self.UNARY_PARSERS): +2537 return self.UNARY_PARSERS[self._prev.token_type](self) +2538 return self._parse_at_time_zone(self._parse_type()) +2539 +2540 def _parse_type(self) -> t.Optional[exp.Expression]: +2541 if self._match(TokenType.INTERVAL): +2542 return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_field()) +2543 +2544 index = self._index +2545 type_token = self._parse_types(check_func=True) +2546 this = self._parse_column() +2547 +2548 if type_token: +2549 if isinstance(this, exp.Literal): +2550 return self.expression(exp.Cast, this=this, to=type_token) +2551 if not type_token.args.get("expressions"): +2552 self._retreat(index) +2553 return self._parse_column() +2554 return type_token +2555 +2556 return this +2557 +2558 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: +2559 index = self._index 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", ".") +2561 prefix = self._match_text_seq("SYSUDTLIB", ".") +2562 +2563 if not self._match_set(self.TYPE_TOKENS): +2564 return None 2565 -2566 if not self._match_set(self.TYPE_TOKENS): -2567 return None -2568 -2569 type_token = self._prev.token_type +2566 type_token = self._prev.token_type +2567 +2568 if type_token == TokenType.PSEUDO_TYPE: +2569 return self.expression(exp.PseudoType, this=self._prev.text) 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 +2571 nested = type_token in self.NESTED_TYPE_TOKENS +2572 is_struct = type_token == TokenType.STRUCT +2573 expressions = None +2574 maybe_func = False +2575 +2576 if self._match(TokenType.L_PAREN): +2577 if is_struct: +2578 expressions = self._parse_csv(self._parse_struct_kwargs) +2579 elif nested: +2580 expressions = self._parse_csv(self._parse_types) +2581 else: +2582 expressions = self._parse_csv(self._parse_conjunction) +2583 +2584 if not expressions: +2585 self._retreat(index) +2586 return None +2587 +2588 self._match_r_paren() +2589 maybe_func = True 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) +2591 if not nested and self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2592 this = exp.DataType( +2593 this=exp.DataType.Type.ARRAY, +2594 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], +2595 nested=True, +2596 ) +2597 +2598 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2599 this = exp.DataType( +2600 this=exp.DataType.Type.ARRAY, +2601 expressions=[this], +2602 nested=True, +2603 ) +2604 +2605 return this +2606 +2607 if self._match(TokenType.L_BRACKET): +2608 self._retreat(index) +2609 return None +2610 +2611 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None +2612 if nested and self._match(TokenType.LT): +2613 if is_struct: +2614 expressions = self._parse_csv(self._parse_struct_kwargs) +2615 else: +2616 expressions = self._parse_csv(self._parse_types) +2617 +2618 if not self._match(TokenType.GT): +2619 self.raise_error("Expecting >") 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 maybe_func and check_func: -2655 index2 = self._index -2656 peek = self._parse_string() -2657 -2658 if not peek: -2659 self._retreat(index) -2660 return None -2661 -2662 self._retreat(index2) +2621 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): +2622 values = self._parse_csv(self._parse_conjunction) +2623 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) +2624 +2625 value: t.Optional[exp.Expression] = None +2626 if type_token in self.TIMESTAMPS: +2627 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: +2628 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) +2629 elif ( +2630 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ +2631 ): +2632 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) +2633 elif self._match(TokenType.WITHOUT_TIME_ZONE): +2634 if type_token == TokenType.TIME: +2635 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) +2636 else: +2637 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) +2638 +2639 maybe_func = maybe_func and value is None +2640 +2641 if value is None: +2642 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) +2643 elif type_token == TokenType.INTERVAL: +2644 unit = self._parse_var() +2645 +2646 if not unit: +2647 value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) +2648 else: +2649 value = self.expression(exp.Interval, unit=unit) +2650 +2651 if maybe_func and check_func: +2652 index2 = self._index +2653 peek = self._parse_string() +2654 +2655 if not peek: +2656 self._retreat(index) +2657 return None +2658 +2659 self._retreat(index2) +2660 +2661 if value: +2662 return value 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 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 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 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 +2664 return exp.DataType( +2665 this=exp.DataType.Type[type_token.value.upper()], +2666 expressions=expressions, +2667 nested=nested, +2668 values=values, +2669 prefix=prefix, +2670 ) +2671 +2672 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: +2673 if self._curr and self._curr.token_type in self.TYPE_TOKENS: +2674 return self._parse_types() +2675 +2676 this = self._parse_id_var() +2677 self._match(TokenType.COLON) +2678 data_type = self._parse_types() +2679 +2680 if not data_type: +2681 return None +2682 return self.expression(exp.StructKwarg, this=this, expression=data_type) +2683 +2684 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2685 if not self._match(TokenType.AT_TIME_ZONE): +2686 return this +2687 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) +2688 +2689 def _parse_column(self) -> t.Optional[exp.Expression]: +2690 this = self._parse_field() +2691 if isinstance(this, exp.Identifier): +2692 this = self.expression(exp.Column, this=this) +2693 elif not this: +2694 return self._parse_bracket(this) +2695 this = self._parse_bracket(this) +2696 +2697 while self._match_set(self.COLUMN_OPERATORS): +2698 op_token = self._prev.token_type +2699 op = self.COLUMN_OPERATORS.get(op_token) +2700 +2701 if op_token == TokenType.DCOLON: +2702 field = self._parse_types() +2703 if not field: +2704 self.raise_error("Expected type") +2705 elif op: +2706 self._advance() +2707 value = self._prev.text +2708 field = ( +2709 exp.Literal.number(value) +2710 if self._prev.token_type == TokenType.NUMBER +2711 else exp.Literal.string(value) +2712 ) +2713 else: +2714 field = self._parse_star() or self._parse_function() or self._parse_id_var() +2715 +2716 if isinstance(field, exp.Func): +2717 # bigquery allows function calls like x.y.count(...) +2718 # SAFE.SUBSTR(...) +2719 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules +2720 this = self._replace_columns_with_dots(this) +2721 +2722 if op: +2723 this = op(self, this, field) +2724 elif isinstance(this, exp.Column) and not this.args.get("catalog"): +2725 this = self.expression( +2726 exp.Column, +2727 this=field, +2728 table=this.this, +2729 db=this.args.get("table"), +2730 catalog=this.args.get("db"), +2731 ) +2732 else: +2733 this = self.expression(exp.Dot, this=this, expression=field) +2734 this = self._parse_bracket(this) +2735 +2736 return this +2737 +2738 def _parse_primary(self) -> t.Optional[exp.Expression]: +2739 if self._match_set(self.PRIMARY_PARSERS): +2740 token_type = self._prev.token_type +2741 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) +2742 +2743 if token_type == TokenType.STRING: +2744 expressions = [primary] +2745 while self._match(TokenType.STRING): +2746 expressions.append(exp.Literal.string(self._prev.text)) +2747 if len(expressions) > 1: +2748 return self.expression(exp.Concat, expressions=expressions) +2749 return primary +2750 +2751 if self._match_pair(TokenType.DOT, TokenType.NUMBER): +2752 return exp.Literal.number(f"0.{self._prev.text}") 2753 -2754 if self._match_pair(TokenType.DOT, TokenType.NUMBER): -2755 return exp.Literal.number(f"0.{self._prev.text}") -2756 -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 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) +2754 if self._match(TokenType.L_PAREN): +2755 comments = self._prev_comments +2756 query = self._parse_select() +2757 +2758 if query: +2759 expressions = [query] +2760 else: +2761 expressions = self._parse_csv( +2762 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) +2763 ) +2764 +2765 this = seq_get(expressions, 0) +2766 self._parse_query_modifiers(this) +2767 self._match_r_paren() +2768 +2769 if isinstance(this, exp.Subqueryable): +2770 this = self._parse_set_operations( +2771 self._parse_subquery(this=this, parse_alias=False) +2772 ) +2773 elif len(expressions) > 1: +2774 this = self.expression(exp.Tuple, expressions=expressions) +2775 else: +2776 this = self.expression(exp.Paren, this=this) +2777 +2778 if this and comments: +2779 this.comments = comments 2780 -2781 if this and comments: -2782 this.comments = comments -2783 -2784 return this -2785 -2786 return None +2781 return this +2782 +2783 return None +2784 +2785 def _parse_field(self, any_token: bool = False) -> t.Optional[exp.Expression]: +2786 return self._parse_primary() or self._parse_function() or self._parse_id_var(any_token) 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 +2788 def _parse_function( +2789 self, functions: t.Optional[t.Dict[str, t.Callable]] = None +2790 ) -> t.Optional[exp.Expression]: +2791 if not self._curr: +2792 return None +2793 +2794 token_type = self._curr.token_type +2795 +2796 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): +2797 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) 2798 -2799 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): -2800 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) -2801 -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 +2799 if not self._next or self._next.token_type != TokenType.L_PAREN: +2800 if token_type in self.NO_PAREN_FUNCTIONS: +2801 self._advance() +2802 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) +2803 +2804 return None +2805 +2806 if token_type not in self.FUNC_TOKENS: 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 +2809 this = self._curr.text +2810 upper = this.upper() +2811 self._advance(2) +2812 +2813 parser = self.FUNCTION_PARSERS.get(upper) +2814 +2815 if parser: +2816 this = parser(self) +2817 else: +2818 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) +2819 +2820 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): +2821 this = self.expression(subquery_predicate, this=self._parse_select()) +2822 self._match_r_paren() +2823 return this +2824 +2825 if functions is None: +2826 functions = self.FUNCTIONS 2827 -2828 if functions is None: -2829 functions = self.FUNCTIONS +2828 function = functions.get(upper) +2829 args = self._parse_csv(self._parse_lambda) 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) +2831 if function: +2832 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the +2833 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. +2834 if count_params(function) == 2: +2835 params = None +2836 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): +2837 params = self._parse_csv(self._parse_lambda) +2838 +2839 this = function(args, params) +2840 else: +2841 this = function(args) +2842 +2843 self.validate_expression(this, args) +2844 else: +2845 this = self.expression(exp.Anonymous, this=this, expressions=args) +2846 +2847 self._match_r_paren(this) +2848 return self._parse_window(this) 2849 -2850 self._match_r_paren(this) -2851 return self._parse_window(this) +2850 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: +2851 return self._parse_column_def(self._parse_id_var()) 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() +2853 def _parse_user_defined_function( +2854 self, kind: t.Optional[TokenType] = None +2855 ) -> t.Optional[exp.Expression]: +2856 this = self._parse_id_var() +2857 +2858 while self._match(TokenType.DOT): +2859 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) 2860 -2861 while self._match(TokenType.DOT): -2862 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) +2861 if not self._match(TokenType.L_PAREN): +2862 return this 2863 -2864 if not self._match(TokenType.L_PAREN): -2865 return this -2866 -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 return self.expression(exp.Identifier, this=token.text) +2864 expressions = self._parse_csv(self._parse_function_parameter) +2865 self._match_r_paren() +2866 return self.expression( +2867 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True +2868 ) +2869 +2870 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: +2871 literal = self._parse_primary() +2872 if literal: +2873 return self.expression(exp.Introducer, this=token.text, expression=literal) +2874 +2875 return self.expression(exp.Identifier, this=token.text) +2876 +2877 def _parse_national(self, token: Token) -> exp.Expression: +2878 return self.expression(exp.National, this=exp.Literal.string(token.text)) 2879 -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) +2880 def _parse_session_parameter(self) -> exp.Expression: +2881 kind = None +2882 this = self._parse_id_var() or self._parse_primary() +2883 +2884 if this and self._match(TokenType.DOT): +2885 kind = this.name +2886 this = self._parse_var() or self._parse_primary() +2887 +2888 return self.expression(exp.SessionParameter, this=this, kind=kind) +2889 +2890 def _parse_lambda(self) -> t.Optional[exp.Expression]: +2891 index = self._index 2892 -2893 def _parse_lambda(self) -> t.Optional[exp.Expression]: -2894 index = self._index +2893 if self._match(TokenType.L_PAREN): +2894 expressions = self._parse_csv(self._parse_id_var) 2895 -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()] +2896 if not self._match(TokenType.R_PAREN): +2897 self._retreat(index) +2898 else: +2899 expressions = [self._parse_id_var()] +2900 +2901 if self._match_set(self.LAMBDAS): +2902 return self.LAMBDAS[self._prev.token_type](self, expressions) 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 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 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 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) +2904 self._retreat(index) +2905 +2906 this: t.Optional[exp.Expression] +2907 +2908 if self._match(TokenType.DISTINCT): +2909 this = self.expression( +2910 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) +2911 ) +2912 else: +2913 this = self._parse_select_or_expression() +2914 +2915 if self._match(TokenType.IGNORE_NULLS): +2916 this = self.expression(exp.IgnoreNulls, this=this) +2917 else: +2918 self._match(TokenType.RESPECT_NULLS) +2919 +2920 return self._parse_limit(self._parse_order(this)) +2921 +2922 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +2923 index = self._index +2924 if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT): +2925 self._retreat(index) +2926 return this +2927 +2928 args = self._parse_csv( +2929 lambda: self._parse_constraint() +2930 or self._parse_column_def(self._parse_field(any_token=True)) +2931 ) +2932 self._match_r_paren() +2933 return self.expression(exp.Schema, this=this, expressions=args) +2934 +2935 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2936 kind = self._parse_types() 2937 -2938 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2939 kind = self._parse_types() +2938 if self._match_text_seq("FOR", "ORDINALITY"): +2939 return self.expression(exp.ColumnDef, this=this, ordinality=True) 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) +2941 constraints = [] +2942 while True: +2943 constraint = self._parse_column_constraint() +2944 if not constraint: +2945 break +2946 constraints.append(constraint) +2947 +2948 if not kind and not constraints: +2949 return this 2950 -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 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() +2951 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) +2952 +2953 def _parse_auto_increment(self) -> exp.Expression: +2954 start = None +2955 increment = None +2956 +2957 if self._match(TokenType.L_PAREN, advance=False): +2958 args = self._parse_wrapped_csv(self._parse_bitwise) +2959 start = seq_get(args, 0) +2960 increment = seq_get(args, 1) +2961 elif self._match_text_seq("START"): +2962 start = self._parse_bitwise() +2963 self._match_text_seq("INCREMENT") +2964 increment = self._parse_bitwise() +2965 +2966 if start and increment: +2967 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) 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 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 +2969 return exp.AutoIncrementColumnConstraint() +2970 +2971 def _parse_compress(self) -> exp.Expression: +2972 if self._match(TokenType.L_PAREN, advance=False): +2973 return self.expression( +2974 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) +2975 ) +2976 +2977 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) +2978 +2979 def _parse_generated_as_identity(self) -> exp.Expression: +2980 if self._match(TokenType.BY_DEFAULT): +2981 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) +2982 else: +2983 self._match_text_seq("ALWAYS") +2984 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) +2985 +2986 self._match_text_seq("AS", "IDENTITY") +2987 if self._match(TokenType.L_PAREN): +2988 if self._match_text_seq("START", "WITH"): +2989 this.set("start", self._parse_bitwise()) +2990 if self._match_text_seq("INCREMENT", "BY"): +2991 this.set("increment", self._parse_bitwise()) +2992 if self._match_text_seq("MINVALUE"): +2993 this.set("minvalue", self._parse_bitwise()) +2994 if self._match_text_seq("MAXVALUE"): +2995 this.set("maxvalue", self._parse_bitwise()) +2996 +2997 if self._match_text_seq("CYCLE"): +2998 this.set("cycle", True) +2999 elif self._match_text_seq("NO", "CYCLE"): +3000 this.set("cycle", False) +3001 +3002 self._match_r_paren() +3003 +3004 return this +3005 +3006 def _parse_inline(self) -> t.Optional[exp.Expression]: +3007 self._match_text_seq("LENGTH") +3008 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) +3009 +3010 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: +3011 if self._match_text_seq("NULL"): +3012 return self.expression(exp.NotNullColumnConstraint) +3013 if self._match_text_seq("CASESPECIFIC"): +3014 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) +3015 return None +3016 +3017 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: +3018 this = self._parse_references() +3019 if this: +3020 return this +3021 +3022 if self._match(TokenType.CONSTRAINT): +3023 this = self._parse_id_var() 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 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) +3025 if self._match_texts(self.CONSTRAINT_PARSERS): +3026 return self.expression( +3027 exp.ColumnConstraint, +3028 this=this, +3029 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), +3030 ) +3031 +3032 return this +3033 +3034 def _parse_constraint(self) -> t.Optional[exp.Expression]: +3035 if not self._match(TokenType.CONSTRAINT): +3036 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) +3037 +3038 this = self._parse_id_var() +3039 expressions = [] 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 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 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 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 +3041 while True: +3042 constraint = self._parse_unnamed_constraint() or self._parse_function() +3043 if not constraint: +3044 break +3045 expressions.append(constraint) +3046 +3047 return self.expression(exp.Constraint, this=this, expressions=expressions) +3048 +3049 def _parse_unnamed_constraint( +3050 self, constraints: t.Optional[t.Collection[str]] = None +3051 ) -> t.Optional[exp.Expression]: +3052 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): +3053 return None +3054 +3055 constraint = self._prev.text.upper() +3056 if constraint not in self.CONSTRAINT_PARSERS: +3057 self.raise_error(f"No parser found for schema constraint {constraint}.") +3058 +3059 return self.CONSTRAINT_PARSERS[constraint](self) +3060 +3061 def _parse_unique(self) -> exp.Expression: +3062 if not self._match(TokenType.L_PAREN, advance=False): +3063 return self.expression(exp.UniqueColumnConstraint) +3064 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) +3065 +3066 def _parse_key_constraint_options(self) -> t.List[str]: +3067 options = [] +3068 while True: +3069 if not self._curr: +3070 break +3071 +3072 if self._match(TokenType.ON): +3073 action = None +3074 on = self._advance_any() and self._prev.text +3075 +3076 if self._match(TokenType.NO_ACTION): +3077 action = "NO ACTION" +3078 elif self._match(TokenType.CASCADE): +3079 action = "CASCADE" +3080 elif self._match_pair(TokenType.SET, TokenType.NULL): +3081 action = "SET NULL" +3082 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): +3083 action = "SET DEFAULT" +3084 else: +3085 self.raise_error("Invalid key constraint") +3086 +3087 options.append(f"ON {on} {action}") +3088 elif self._match_text_seq("NOT", "ENFORCED"): +3089 options.append("NOT ENFORCED") +3090 elif self._match_text_seq("DEFERRABLE"): +3091 options.append("DEFERRABLE") +3092 elif self._match_text_seq("INITIALLY", "DEFERRED"): +3093 options.append("INITIALLY DEFERRED") +3094 elif self._match_text_seq("NORELY"): +3095 options.append("NORELY") +3096 elif self._match_text_seq("MATCH", "FULL"): +3097 options.append("MATCH FULL") +3098 else: +3099 break +3100 +3101 return options +3102 +3103 def _parse_references(self) -> t.Optional[exp.Expression]: +3104 if not self._match(TokenType.REFERENCES): +3105 return None +3106 +3107 expressions = None +3108 this = self._parse_id_var() 3109 -3110 expressions = None -3111 this = self._parse_id_var() +3110 if self._match(TokenType.L_PAREN, advance=False): +3111 expressions = self._parse_wrapped_id_vars() 3112 -3113 if self._match(TokenType.L_PAREN, advance=False): -3114 expressions = self._parse_wrapped_id_vars() +3113 options = self._parse_key_constraint_options() +3114 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) 3115 -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 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 ) +3116 def _parse_foreign_key(self) -> exp.Expression: +3117 expressions = self._parse_wrapped_id_vars() +3118 reference = self._parse_references() +3119 options = {} +3120 +3121 while self._match(TokenType.ON): +3122 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): +3123 self.raise_error("Expected DELETE or UPDATE") +3124 +3125 kind = self._prev.text.lower() +3126 +3127 if self._match(TokenType.NO_ACTION): +3128 action = "NO ACTION" +3129 elif self._match(TokenType.SET): +3130 self._match_set((TokenType.NULL, TokenType.DEFAULT)) +3131 action = "SET " + self._prev.text.upper() +3132 else: +3133 self._advance() +3134 action = self._prev.text.upper() +3135 +3136 options[kind] = action +3137 +3138 return self.expression( +3139 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore +3140 ) +3141 +3142 def _parse_primary_key(self) -> exp.Expression: +3143 desc = ( +3144 self._match_set((TokenType.ASC, TokenType.DESC)) +3145 and self._prev.token_type == TokenType.DESC +3146 ) +3147 +3148 if not self._match(TokenType.L_PAREN, advance=False): +3149 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) 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_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 +3151 expressions = self._parse_wrapped_id_vars() +3152 options = self._parse_key_constraint_options() +3153 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) +3154 +3155 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3156 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): +3157 return this +3158 +3159 bracket_kind = self._prev.token_type +3160 expressions: t.List[t.Optional[exp.Expression]] 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 }") +3162 if self._match(TokenType.COLON): +3163 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] +3164 else: +3165 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) +3166 +3167 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs +3168 if bracket_kind == TokenType.L_BRACE: +3169 this = self.expression(exp.Struct, expressions=expressions) +3170 elif not this or this.name.upper() == "ARRAY": +3171 this = self.expression(exp.Array, expressions=expressions) +3172 else: +3173 expressions = apply_index_offset(expressions, -self.index_offset) +3174 this = self.expression(exp.Bracket, this=this, expressions=expressions) +3175 +3176 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: +3177 self.raise_error("Expected ]") +3178 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: +3179 self.raise_error("Expected }") +3180 +3181 this.comments = self._prev_comments +3182 return self._parse_bracket(this) 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)) +3184 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3185 if self._match(TokenType.COLON): +3186 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) +3187 return this +3188 +3189 def _parse_case(self) -> t.Optional[exp.Expression]: +3190 ifs = [] +3191 default = None +3192 +3193 expression = self._parse_conjunction() +3194 +3195 while self._match(TokenType.WHEN): +3196 this = self._parse_conjunction() +3197 self._match(TokenType.THEN) +3198 then = self._parse_conjunction() +3199 ifs.append(self.expression(exp.If, this=this, true=then)) +3200 +3201 if self._match(TokenType.ELSE): +3202 default = self._parse_conjunction() 3203 -3204 if self._match(TokenType.ELSE): -3205 default = self._parse_conjunction() +3204 if not self._match(TokenType.END): +3205 self.raise_error("Expected END after CASE", self._prev) 3206 -3207 if not self._match(TokenType.END): -3208 self.raise_error("Expected END after CASE", self._prev) -3209 -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 return self._parse_window(this) +3207 return self._parse_window( +3208 self.expression(exp.Case, this=expression, ifs=ifs, default=default) +3209 ) +3210 +3211 def _parse_if(self) -> t.Optional[exp.Expression]: +3212 if self._match(TokenType.L_PAREN): +3213 args = self._parse_csv(self._parse_conjunction) +3214 this = exp.If.from_arg_list(args) +3215 self.validate_expression(this, args) +3216 self._match_r_paren() +3217 else: +3218 condition = self._parse_conjunction() +3219 self._match(TokenType.THEN) +3220 true = self._parse_conjunction() +3221 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None +3222 self._match(TokenType.END) +3223 this = self.expression(exp.If, this=condition, true=true, false=false) +3224 +3225 return self._parse_window(this) +3226 +3227 def _parse_extract(self) -> exp.Expression: +3228 this = self._parse_function() or self._parse_var() or self._parse_type() 3229 -3230 def _parse_extract(self) -> exp.Expression: -3231 this = self._parse_function() or self._parse_var() or self._parse_type() +3230 if self._match(TokenType.FROM): +3231 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) 3232 -3233 if self._match(TokenType.FROM): -3234 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3233 if not self._match(TokenType.COMMA): +3234 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) 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()) +3236 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3237 +3238 def _parse_cast(self, strict: bool) -> exp.Expression: +3239 this = self._parse_conjunction() 3240 -3241 def _parse_cast(self, strict: bool) -> exp.Expression: -3242 this = self._parse_conjunction() +3241 if not self._match(TokenType.ALIAS): +3242 self.raise_error("Expected AS after CAST") 3243 -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) +3244 to = self._parse_types() +3245 +3246 if not to: +3247 self.raise_error("Expected TYPE after CAST") +3248 elif to.this == exp.DataType.Type.CHAR: +3249 if self._match(TokenType.CHARACTER_SET): +3250 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) +3251 +3252 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3253 +3254 def _parse_string_agg(self) -> exp.Expression: +3255 expression: t.Optional[exp.Expression] 3256 -3257 def _parse_string_agg(self) -> exp.Expression: -3258 expression: t.Optional[exp.Expression] -3259 -3260 if self._match(TokenType.DISTINCT): +3257 if self._match(TokenType.DISTINCT): +3258 args = self._parse_csv(self._parse_conjunction) +3259 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) +3260 else: 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 # 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 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 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 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 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 # 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 # 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 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_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_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 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 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 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 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 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 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 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 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 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 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 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 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 _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 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 +3262 expression = seq_get(args, 0) +3263 +3264 index = self._index +3265 if not self._match(TokenType.R_PAREN): +3266 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) +3267 order = self._parse_order(this=expression) +3268 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3269 +3270 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). +3271 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that +3272 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. +3273 if not self._match(TokenType.WITHIN_GROUP): +3274 self._retreat(index) +3275 this = exp.GroupConcat.from_arg_list(args) +3276 self.validate_expression(this, args) +3277 return this +3278 +3279 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) +3280 order = self._parse_order(this=expression) +3281 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3282 +3283 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: +3284 to: t.Optional[exp.Expression] +3285 this = self._parse_bitwise() +3286 +3287 if self._match(TokenType.USING): +3288 to = self.expression(exp.CharacterSet, this=self._parse_var()) +3289 elif self._match(TokenType.COMMA): +3290 to = self._parse_bitwise() +3291 else: +3292 to = None +3293 +3294 # Swap the argument order if needed to produce the correct AST +3295 if self.CONVERT_TYPE_FIRST: +3296 this, to = to, this +3297 +3298 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3299 +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 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 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 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 # 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 # 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 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_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_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 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 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 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 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 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 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 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 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 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 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 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 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 _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 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
  • @@ -4099,6 +4103,29 @@ + +
    + +
    + + def + binary_range_parser( expr_type: Type[sqlglot.expressions.Expression]) -> Callable[[sqlglot.parser.Parser, Optional[sqlglot.expressions.Expression]], Optional[sqlglot.expressions.Expression]]: + + + +
    + +
    35def binary_range_parser(
    +36    expr_type: t.Type[exp.Expression],
    +37) -> t.Callable[[Parser, t.Optional[exp.Expression]], t.Optional[exp.Expression]]:
    +38    return lambda self, this: self._parse_escape(
    +39        self.expression(expr_type, this=this, expression=self._parse_bitwise())
    +40    )
    +
    + + + +
    @@ -4111,3944 +4138,3937 @@ -
      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        "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),
    +            
      55class Parser(metaclass=_Parser):
    +  56    """
    +  57    Parser consumes a list of tokens produced by the `sqlglot.tokens.Tokenizer` and produces
    +  58    a parsed syntax tree.
    +  59
    +  60    Args:
    +  61        error_level: the desired error level.
    +  62            Default: ErrorLevel.RAISE
    +  63        error_message_context: determines the amount of context to capture from a
    +  64            query string when displaying the error message (in number of characters).
    +  65            Default: 50.
    +  66        index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.
    +  67            Default: 0
    +  68        alias_post_tablesample: If the table alias comes after tablesample.
    +  69            Default: False
    +  70        max_errors: Maximum number of error messages to include in a raised ParseError.
    +  71            This is only relevant if error_level is ErrorLevel.RAISE.
    +  72            Default: 3
    +  73        null_ordering: Indicates the default null ordering method to use if not explicitly set.
    +  74            Options are "nulls_are_small", "nulls_are_large", "nulls_are_last".
    +  75            Default: "nulls_are_small"
    +  76    """
    +  77
    +  78    FUNCTIONS: t.Dict[str, t.Callable] = {
    +  79        **{name: f.from_arg_list for f in exp.ALL_FUNCTIONS for name in f.sql_names()},
    +  80        "DATE_TO_DATE_STR": lambda args: exp.Cast(
    +  81            this=seq_get(args, 0),
    +  82            to=exp.DataType(this=exp.DataType.Type.TEXT),
    +  83        ),
    +  84        "TIME_TO_TIME_STR": lambda args: exp.Cast(
    +  85            this=seq_get(args, 0),
    +  86            to=exp.DataType(this=exp.DataType.Type.TEXT),
       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}
    +  88        "TS_OR_DS_TO_DATE_STR": lambda args: exp.Substring(
    +  89            this=exp.Cast(
    +  90                this=seq_get(args, 0),
    +  91                to=exp.DataType(this=exp.DataType.Type.TEXT),
    +  92            ),
    +  93            start=exp.Literal.number(1),
    +  94            length=exp.Literal.number(10),
    +  95        ),
    +  96        "VAR_MAP": parse_var_map,
    +  97        "IFNULL": exp.Coalesce.from_arg_list,
    +  98    }
    +  99
    + 100    NO_PAREN_FUNCTIONS = {
    + 101        TokenType.CURRENT_DATE: exp.CurrentDate,
    + 102        TokenType.CURRENT_DATETIME: exp.CurrentDate,
    + 103        TokenType.CURRENT_TIMESTAMP: exp.CurrentTimestamp,
    + 104    }
    + 105
    + 106    NESTED_TYPE_TOKENS = {
    + 107        TokenType.ARRAY,
    + 108        TokenType.MAP,
    + 109        TokenType.STRUCT,
    + 110        TokenType.NULLABLE,
    + 111    }
    + 112
    + 113    TYPE_TOKENS = {
    + 114        TokenType.BIT,
    + 115        TokenType.BOOLEAN,
    + 116        TokenType.TINYINT,
    + 117        TokenType.SMALLINT,
    + 118        TokenType.INT,
    + 119        TokenType.BIGINT,
    + 120        TokenType.FLOAT,
    + 121        TokenType.DOUBLE,
    + 122        TokenType.CHAR,
    + 123        TokenType.NCHAR,
    + 124        TokenType.VARCHAR,
    + 125        TokenType.NVARCHAR,
    + 126        TokenType.TEXT,
    + 127        TokenType.MEDIUMTEXT,
    + 128        TokenType.LONGTEXT,
    + 129        TokenType.MEDIUMBLOB,
    + 130        TokenType.LONGBLOB,
    + 131        TokenType.BINARY,
    + 132        TokenType.VARBINARY,
    + 133        TokenType.JSON,
    + 134        TokenType.JSONB,
    + 135        TokenType.INTERVAL,
    + 136        TokenType.TIME,
    + 137        TokenType.TIMESTAMP,
    + 138        TokenType.TIMESTAMPTZ,
    + 139        TokenType.TIMESTAMPLTZ,
    + 140        TokenType.DATETIME,
    + 141        TokenType.DATE,
    + 142        TokenType.DECIMAL,
    + 143        TokenType.UUID,
    + 144        TokenType.GEOGRAPHY,
    + 145        TokenType.GEOMETRY,
    + 146        TokenType.HLLSKETCH,
    + 147        TokenType.HSTORE,
    + 148        TokenType.PSEUDO_TYPE,
    + 149        TokenType.SUPER,
    + 150        TokenType.SERIAL,
    + 151        TokenType.SMALLSERIAL,
    + 152        TokenType.BIGSERIAL,
    + 153        TokenType.XML,
    + 154        TokenType.UNIQUEIDENTIFIER,
    + 155        TokenType.MONEY,
    + 156        TokenType.SMALLMONEY,
    + 157        TokenType.ROWVERSION,
    + 158        TokenType.IMAGE,
    + 159        TokenType.VARIANT,
    + 160        TokenType.OBJECT,
    + 161        TokenType.INET,
    + 162        *NESTED_TYPE_TOKENS,
    + 163    }
      164
    - 165    DB_CREATABLES = {
    - 166        TokenType.DATABASE,
    - 167        TokenType.SCHEMA,
    - 168        TokenType.TABLE,
    - 169        TokenType.VIEW,
    + 165    SUBQUERY_PREDICATES = {
    + 166        TokenType.ANY: exp.Any,
    + 167        TokenType.ALL: exp.All,
    + 168        TokenType.EXISTS: exp.Exists,
    + 169        TokenType.SOME: exp.Any,
      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,
    + 172    RESERVED_KEYWORDS = {*Tokenizer.SINGLE_TOKENS.values(), TokenType.SELECT}
    + 173
    + 174    DB_CREATABLES = {
    + 175        TokenType.DATABASE,
    + 176        TokenType.SCHEMA,
    + 177        TokenType.TABLE,
    + 178        TokenType.VIEW,
    + 179    }
    + 180
    + 181    CREATABLES = {
    + 182        TokenType.COLUMN,
    + 183        TokenType.FUNCTION,
    + 184        TokenType.INDEX,
    + 185        TokenType.PROCEDURE,
    + 186        *DB_CREATABLES,
    + 187    }
    + 188
    + 189    ID_VAR_TOKENS = {
    + 190        TokenType.VAR,
    + 191        TokenType.ANTI,
    + 192        TokenType.APPLY,
    + 193        TokenType.AUTO_INCREMENT,
    + 194        TokenType.BEGIN,
    + 195        TokenType.BOTH,
    + 196        TokenType.BUCKET,
    + 197        TokenType.CACHE,
    + 198        TokenType.CASCADE,
    + 199        TokenType.COLLATE,
    + 200        TokenType.COMMAND,
    + 201        TokenType.COMMENT,
    + 202        TokenType.COMMIT,
    + 203        TokenType.COMPOUND,
    + 204        TokenType.CONSTRAINT,
    + 205        TokenType.CURRENT_TIME,
    + 206        TokenType.DEFAULT,
    + 207        TokenType.DELETE,
    + 208        TokenType.DESCRIBE,
    + 209        TokenType.DIV,
    + 210        TokenType.END,
    + 211        TokenType.EXECUTE,
    + 212        TokenType.ESCAPE,
    + 213        TokenType.FALSE,
    + 214        TokenType.FIRST,
    + 215        TokenType.FILTER,
    + 216        TokenType.FOLLOWING,
    + 217        TokenType.FORMAT,
    + 218        TokenType.IF,
    + 219        TokenType.ISNULL,
    + 220        TokenType.INTERVAL,
    + 221        TokenType.LAZY,
    + 222        TokenType.LEADING,
    + 223        TokenType.LEFT,
    + 224        TokenType.LOCAL,
    + 225        TokenType.MATERIALIZED,
    + 226        TokenType.MERGE,
    + 227        TokenType.NATURAL,
    + 228        TokenType.NEXT,
    + 229        TokenType.OFFSET,
    + 230        TokenType.ONLY,
    + 231        TokenType.OPTIONS,
    + 232        TokenType.ORDINALITY,
    + 233        TokenType.PERCENT,
    + 234        TokenType.PIVOT,
    + 235        TokenType.PRECEDING,
    + 236        TokenType.RANGE,
    + 237        TokenType.REFERENCES,
    + 238        TokenType.RIGHT,
    + 239        TokenType.ROW,
    + 240        TokenType.ROWS,
    + 241        TokenType.SEED,
    + 242        TokenType.SEMI,
    + 243        TokenType.SET,
    + 244        TokenType.SHOW,
    + 245        TokenType.SORTKEY,
    + 246        TokenType.TEMPORARY,
    + 247        TokenType.TOP,
    + 248        TokenType.TRAILING,
    + 249        TokenType.TRUE,
    + 250        TokenType.UNBOUNDED,
    + 251        TokenType.UNIQUE,
    + 252        TokenType.UNLOGGED,
    + 253        TokenType.UNPIVOT,
    + 254        TokenType.VOLATILE,
    + 255        TokenType.WINDOW,
    + 256        *CREATABLES,
    + 257        *SUBQUERY_PREDICATES,
    + 258        *TYPE_TOKENS,
    + 259        *NO_PAREN_FUNCTIONS,
      260    }
      261
    - 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,
    + 262    TABLE_ALIAS_TOKENS = ID_VAR_TOKENS - {
    + 263        TokenType.APPLY,
    + 264        TokenType.LEFT,
    + 265        TokenType.NATURAL,
    + 266        TokenType.OFFSET,
    + 267        TokenType.RIGHT,
    + 268        TokenType.WINDOW,
    + 269    }
    + 270
    + 271    UPDATE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.SET}
    + 272
    + 273    TRIM_TYPES = {TokenType.LEADING, TokenType.TRAILING, TokenType.BOTH}
    + 274
    + 275    FUNC_TOKENS = {
    + 276        TokenType.COMMAND,
    + 277        TokenType.CURRENT_DATE,
    + 278        TokenType.CURRENT_DATETIME,
    + 279        TokenType.CURRENT_TIMESTAMP,
    + 280        TokenType.CURRENT_TIME,
    + 281        TokenType.FILTER,
    + 282        TokenType.FIRST,
    + 283        TokenType.FORMAT,
    + 284        TokenType.IDENTIFIER,
    + 285        TokenType.INDEX,
    + 286        TokenType.ISNULL,
    + 287        TokenType.ILIKE,
    + 288        TokenType.LIKE,
    + 289        TokenType.MERGE,
    + 290        TokenType.OFFSET,
    + 291        TokenType.PRIMARY_KEY,
    + 292        TokenType.REPLACE,
    + 293        TokenType.ROW,
    + 294        TokenType.UNNEST,
    + 295        TokenType.VAR,
    + 296        TokenType.LEFT,
    + 297        TokenType.RIGHT,
    + 298        TokenType.DATE,
    + 299        TokenType.DATETIME,
    + 300        TokenType.TABLE,
    + 301        TokenType.TIMESTAMP,
    + 302        TokenType.TIMESTAMPTZ,
    + 303        TokenType.WINDOW,
    + 304        *TYPE_TOKENS,
    + 305        *SUBQUERY_PREDICATES,
    + 306    }
    + 307
    + 308    CONJUNCTION = {
    + 309        TokenType.AND: exp.And,
    + 310        TokenType.OR: exp.Or,
    + 311    }
    + 312
    + 313    EQUALITY = {
    + 314        TokenType.EQ: exp.EQ,
    + 315        TokenType.NEQ: exp.NEQ,
    + 316        TokenType.NULLSAFE_EQ: exp.NullSafeEQ,
    + 317    }
    + 318
    + 319    COMPARISON = {
    + 320        TokenType.GT: exp.GT,
    + 321        TokenType.GTE: exp.GTE,
    + 322        TokenType.LT: exp.LT,
    + 323        TokenType.LTE: exp.LTE,
    + 324    }
    + 325
    + 326    BITWISE = {
    + 327        TokenType.AMP: exp.BitwiseAnd,
    + 328        TokenType.CARET: exp.BitwiseXor,
    + 329        TokenType.PIPE: exp.BitwiseOr,
    + 330        TokenType.DPIPE: exp.DPipe,
    + 331    }
    + 332
    + 333    TERM = {
    + 334        TokenType.DASH: exp.Sub,
    + 335        TokenType.PLUS: exp.Add,
    + 336        TokenType.MOD: exp.Mod,
    + 337        TokenType.COLLATE: exp.Collate,
    + 338    }
    + 339
    + 340    FACTOR = {
    + 341        TokenType.DIV: exp.IntDiv,
    + 342        TokenType.LR_ARROW: exp.Distance,
    + 343        TokenType.SLASH: exp.Div,
    + 344        TokenType.STAR: exp.Mul,
    + 345    }
    + 346
    + 347    TIMESTAMPS = {
    + 348        TokenType.TIME,
    + 349        TokenType.TIMESTAMP,
    + 350        TokenType.TIMESTAMPTZ,
    + 351        TokenType.TIMESTAMPLTZ,
    + 352    }
    + 353
    + 354    SET_OPERATIONS = {
    + 355        TokenType.UNION,
    + 356        TokenType.INTERSECT,
    + 357        TokenType.EXCEPT,
    + 358    }
    + 359
    + 360    JOIN_SIDES = {
    + 361        TokenType.LEFT,
    + 362        TokenType.RIGHT,
    + 363        TokenType.FULL,
    + 364    }
    + 365
    + 366    JOIN_KINDS = {
    + 367        TokenType.INNER,
    + 368        TokenType.OUTER,
    + 369        TokenType.CROSS,
    + 370        TokenType.SEMI,
    + 371        TokenType.ANTI,
    + 372    }
    + 373
    + 374    LAMBDAS = {
    + 375        TokenType.ARROW: lambda self, expressions: self.expression(
    + 376            exp.Lambda,
    + 377            this=self._parse_conjunction().transform(
    + 378                self._replace_lambda, {node.name for node in expressions}
    + 379            ),
    + 380            expressions=expressions,
    + 381        ),
    + 382        TokenType.FARROW: lambda self, expressions: self.expression(
    + 383            exp.Kwarg,
    + 384            this=exp.Var(this=expressions[0].name),
    + 385            expression=self._parse_conjunction(),
      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.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(
    + 387    }
    + 388
    + 389    COLUMN_OPERATORS = {
    + 390        TokenType.DOT: None,
    + 391        TokenType.DCOLON: lambda self, this, to: self.expression(
    + 392            exp.Cast,
    + 393            this=this,
    + 394            to=to,
    + 395        ),
    + 396        TokenType.ARROW: lambda self, this, path: self.expression(
    + 397            exp.JSONExtract,
    + 398            this=this,
    + 399            expression=path,
    + 400        ),
    + 401        TokenType.DARROW: lambda self, this, path: self.expression(
    + 402            exp.JSONExtractScalar,
    + 403            this=this,
    + 404            expression=path,
    + 405        ),
    + 406        TokenType.HASH_ARROW: lambda self, this, path: self.expression(
    + 407            exp.JSONBExtract,
    + 408            this=this,
    + 409            expression=path,
    + 410        ),
    + 411        TokenType.DHASH_ARROW: lambda self, this, path: self.expression(
    + 412            exp.JSONBExtractScalar,
    + 413            this=this,
    + 414            expression=path,
    + 415        ),
    + 416        TokenType.PLACEHOLDER: lambda self, this, key: self.expression(
    + 417            exp.JSONBContains,
    + 418            this=this,
    + 419            expression=key,
    + 420        ),
    + 421    }
    + 422
    + 423    EXPRESSION_PARSERS = {
    + 424        exp.Column: lambda self: self._parse_column(),
    + 425        exp.DataType: lambda self: self._parse_types(),
    + 426        exp.From: lambda self: self._parse_from(),
    + 427        exp.Group: lambda self: self._parse_group(),
    + 428        exp.Identifier: lambda self: self._parse_id_var(),
    + 429        exp.Lateral: lambda self: self._parse_lateral(),
    + 430        exp.Join: lambda self: self._parse_join(),
    + 431        exp.Order: lambda self: self._parse_order(),
    + 432        exp.Cluster: lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster),
    + 433        exp.Sort: lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort),
    + 434        exp.Lambda: lambda self: self._parse_lambda(),
    + 435        exp.Limit: lambda self: self._parse_limit(),
    + 436        exp.Offset: lambda self: self._parse_offset(),
    + 437        exp.TableAlias: lambda self: self._parse_table_alias(),
    + 438        exp.Table: lambda self: self._parse_table(),
    + 439        exp.Condition: lambda self: self._parse_conjunction(),
    + 440        exp.Expression: lambda self: self._parse_statement(),
    + 441        exp.Properties: lambda self: self._parse_properties(),
    + 442        exp.Where: lambda self: self._parse_where(),
    + 443        exp.Ordered: lambda self: self._parse_ordered(),
    + 444        exp.Having: lambda self: self._parse_having(),
    + 445        exp.With: lambda self: self._parse_with(),
    + 446        exp.Window: lambda self: self._parse_named_window(),
    + 447        exp.Qualify: lambda self: self._parse_qualify(),
    + 448        "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(),
    + 449    }
    + 450
    + 451    STATEMENT_PARSERS = {
    + 452        TokenType.ALTER: lambda self: self._parse_alter(),
    + 453        TokenType.BEGIN: lambda self: self._parse_transaction(),
    + 454        TokenType.CACHE: lambda self: self._parse_cache(),
    + 455        TokenType.COMMIT: lambda self: self._parse_commit_or_rollback(),
    + 456        TokenType.COMMENT: lambda self: self._parse_comment(),
    + 457        TokenType.CREATE: lambda self: self._parse_create(),
    + 458        TokenType.DELETE: lambda self: self._parse_delete(),
    + 459        TokenType.DESC: lambda self: self._parse_describe(),
    + 460        TokenType.DESCRIBE: lambda self: self._parse_describe(),
    + 461        TokenType.DROP: lambda self: self._parse_drop(),
    + 462        TokenType.END: lambda self: self._parse_commit_or_rollback(),
    + 463        TokenType.INSERT: lambda self: self._parse_insert(),
    + 464        TokenType.LOAD_DATA: lambda self: self._parse_load_data(),
    + 465        TokenType.MERGE: lambda self: self._parse_merge(),
    + 466        TokenType.ROLLBACK: lambda self: self._parse_commit_or_rollback(),
    + 467        TokenType.UNCACHE: lambda self: self._parse_uncache(),
    + 468        TokenType.UPDATE: lambda self: self._parse_update(),
    + 469        TokenType.USE: lambda self: self.expression(
    + 470            exp.Use,
    + 471            kind=self._match_texts(("ROLE", "WAREHOUSE", "DATABASE", "SCHEMA"))
    + 472            and exp.Var(this=self._prev.text),
    + 473            this=self._parse_table(schema=False),
    + 474        ),
    + 475    }
    + 476
    + 477    UNARY_PARSERS = {
    + 478        TokenType.PLUS: lambda self: self._parse_unary(),  # Unary + is handled as a no-op
    + 479        TokenType.NOT: lambda self: self.expression(exp.Not, this=self._parse_equality()),
    + 480        TokenType.TILDA: lambda self: self.expression(exp.BitwiseNot, this=self._parse_unary()),
    + 481        TokenType.DASH: lambda self: self.expression(exp.Neg, this=self._parse_unary()),
    + 482    }
    + 483
    + 484    PRIMARY_PARSERS = {
    + 485        TokenType.STRING: lambda self, token: self.expression(
    + 486            exp.Literal, this=token.text, is_string=True
    + 487        ),
    + 488        TokenType.NUMBER: lambda self, token: self.expression(
    + 489            exp.Literal, this=token.text, is_string=False
    + 490        ),
    + 491        TokenType.STAR: lambda self, _: self.expression(
    + 492            exp.Star,
    + 493            **{"except": self._parse_except(), "replace": self._parse_replace()},
    + 494        ),
    + 495        TokenType.NULL: lambda self, _: self.expression(exp.Null),
    + 496        TokenType.TRUE: lambda self, _: self.expression(exp.Boolean, this=True),
    + 497        TokenType.FALSE: lambda self, _: self.expression(exp.Boolean, this=False),
    + 498        TokenType.BIT_STRING: lambda self, token: self.expression(exp.BitString, this=token.text),
    + 499        TokenType.HEX_STRING: lambda self, token: self.expression(exp.HexString, this=token.text),
    + 500        TokenType.BYTE_STRING: lambda self, token: self.expression(exp.ByteString, this=token.text),
    + 501        TokenType.INTRODUCER: lambda self, token: self._parse_introducer(token),
    + 502        TokenType.NATIONAL: lambda self, token: self._parse_national(token),
    + 503        TokenType.SESSION_PARAMETER: lambda self, _: self._parse_session_parameter(),
    + 504    }
    + 505
    + 506    PLACEHOLDER_PARSERS = {
    + 507        TokenType.PLACEHOLDER: lambda self: self.expression(exp.Placeholder),
    + 508        TokenType.PARAMETER: lambda self: self._parse_parameter(),
    + 509        TokenType.COLON: lambda self: self.expression(exp.Placeholder, this=self._prev.text)
    + 510        if self._match_set((TokenType.NUMBER, TokenType.VAR))
    + 511        else None,
    + 512    }
    + 513
    + 514    RANGE_PARSERS = {
    + 515        TokenType.BETWEEN: lambda self, this: self._parse_between(this),
    + 516        TokenType.GLOB: binary_range_parser(exp.Glob),
    + 517        TokenType.OVERLAPS: binary_range_parser(exp.Overlaps),
    + 518        TokenType.IN: lambda self, this: self._parse_in(this),
    + 519        TokenType.IS: lambda self, this: self._parse_is(this),
    + 520        TokenType.LIKE: binary_range_parser(exp.Like),
    + 521        TokenType.ILIKE: binary_range_parser(exp.ILike),
    + 522        TokenType.IRLIKE: binary_range_parser(exp.RegexpILike),
    + 523        TokenType.RLIKE: binary_range_parser(exp.RegexpLike),
    + 524        TokenType.SIMILAR_TO: binary_range_parser(exp.SimilarTo),
    + 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(
      534            no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL"
      535        ),
    - 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)
    + 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"
      546        ),
    - 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()
    + 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()
      630        ),
    - 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    }
    + 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        "sample": lambda self: self._parse_table_sample(as_modifier=True),
    + 689    }
    + 690
    + 691    SHOW_PARSERS: t.Dict[str, t.Callable] = {}
    + 692    SET_PARSERS: t.Dict[str, t.Callable] = {}
    + 693
    + 694    MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table)
      695
    - 696    SHOW_PARSERS: t.Dict[str, t.Callable] = {}
    - 697    SET_PARSERS: t.Dict[str, t.Callable] = {}
    - 698
    - 699    MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table)
    - 700
    - 701    TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"}
    - 702
    - 703    INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"}
    - 704
    - 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))
    + 696    TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"}
    + 697
    + 698    INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"}
    + 699
    + 700    WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS}
    + 701
    + 702    ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY}
    + 703
    + 704    STRICT_CAST = True
    + 705
    + 706    INTEGER_DIVISION = True
    + 707
    + 708    CONVERT_TYPE_FIRST = False
    + 709
    + 710    __slots__ = (
    + 711        "error_level",
    + 712        "error_message_context",
    + 713        "sql",
    + 714        "errors",
    + 715        "index_offset",
    + 716        "unnest_column_only",
    + 717        "alias_post_tablesample",
    + 718        "max_errors",
    + 719        "null_ordering",
    + 720        "_tokens",
    + 721        "_index",
    + 722        "_curr",
    + 723        "_next",
    + 724        "_prev",
    + 725        "_prev_comments",
    + 726        "_show_trie",
    + 727        "_set_trie",
    + 728    )
    + 729
    + 730    def __init__(
    + 731        self,
    + 732        error_level: t.Optional[ErrorLevel] = None,
    + 733        error_message_context: int = 100,
    + 734        index_offset: int = 0,
    + 735        unnest_column_only: bool = False,
    + 736        alias_post_tablesample: bool = False,
    + 737        max_errors: int = 3,
    + 738        null_ordering: t.Optional[str] = None,
    + 739    ):
    + 740        self.error_level = error_level or ErrorLevel.IMMEDIATE
    + 741        self.error_message_context = error_message_context
    + 742        self.index_offset = index_offset
    + 743        self.unnest_column_only = unnest_column_only
    + 744        self.alias_post_tablesample = alias_post_tablesample
    + 745        self.max_errors = max_errors
    + 746        self.null_ordering = null_ordering
    + 747        self.reset()
    + 748
    + 749    def reset(self):
    + 750        self.sql = ""
    + 751        self.errors = []
    + 752        self._tokens = []
    + 753        self._index = 0
    + 754        self._curr = None
    + 755        self._next = None
    + 756        self._prev = None
    + 757        self._prev_comments = None
    + 758
    + 759    def parse(
    + 760        self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
    + 761    ) -> t.List[t.Optional[exp.Expression]]:
    + 762        """
    + 763        Parses a list of tokens and returns a list of syntax trees, one tree
    + 764        per parsed SQL statement.
    + 765
    + 766        Args:
    + 767            raw_tokens: the list of tokens.
    + 768            sql: the original SQL string, used to produce helpful debug messages.
    + 769
    + 770        Returns:
    + 771            The list of syntax trees.
    + 772        """
    + 773        return self._parse(
    + 774            parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql
    + 775        )
    + 776
    + 777    def parse_into(
    + 778        self,
    + 779        expression_types: exp.IntoType,
    + 780        raw_tokens: t.List[Token],
    + 781        sql: t.Optional[str] = None,
    + 782    ) -> t.List[t.Optional[exp.Expression]]:
    + 783        """
    + 784        Parses a list of tokens into a given Expression type. If a collection of Expression
    + 785        types is given instead, this method will try to parse the token list into each one
    + 786        of them, stopping at the first for which the parsing succeeds.
    + 787
    + 788        Args:
    + 789            expression_types: the expression type(s) to try and parse the token list into.
    + 790            raw_tokens: the list of tokens.
    + 791            sql: the original SQL string, used to produce helpful debug messages.
    + 792
    + 793        Returns:
    + 794            The target Expression.
    + 795        """
    + 796        errors = []
    + 797        for expression_type in ensure_collection(expression_types):
    + 798            parser = self.EXPRESSION_PARSERS.get(expression_type)
    + 799            if not parser:
    + 800                raise TypeError(f"No parser registered for {expression_type}")
    + 801            try:
    + 802                return self._parse(parser, raw_tokens, sql)
    + 803            except ParseError as e:
    + 804                e.errors[0]["into_expression"] = expression_type
    + 805                errors.append(e)
    + 806        raise ParseError(
    + 807            f"Failed to parse into {expression_types}",
    + 808            errors=merge_errors(errors),
    + 809        ) from errors[-1]
    + 810
    + 811    def _parse(
    + 812        self,
    + 813        parse_method: t.Callable[[Parser], t.Optional[exp.Expression]],
    + 814        raw_tokens: t.List[Token],
    + 815        sql: t.Optional[str] = None,
    + 816    ) -> t.List[t.Optional[exp.Expression]]:
    + 817        self.reset()
    + 818        self.sql = sql or ""
    + 819        total = len(raw_tokens)
    + 820        chunks: t.List[t.List[Token]] = [[]]
    + 821
    + 822        for i, token in enumerate(raw_tokens):
    + 823            if token.token_type == TokenType.SEMICOLON:
    + 824                if i < total - 1:
    + 825                    chunks.append([])
    + 826            else:
    + 827                chunks[-1].append(token)
    + 828
    + 829        expressions = []
    + 830
    + 831        for tokens in chunks:
    + 832            self._index = -1
    + 833            self._tokens = tokens
    + 834            self._advance()
    + 835
    + 836            expressions.append(parse_method(self))
    + 837
    + 838            if self._index < len(self._tokens):
    + 839                self.raise_error("Invalid expression / Unexpected token")
      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        )
    + 841            self.check_errors()
    + 842
    + 843        return expressions
    + 844
    + 845    def check_errors(self) -> None:
    + 846        """
    + 847        Logs or raises any found errors, depending on the chosen error level setting.
    + 848        """
    + 849        if self.error_level == ErrorLevel.WARN:
    + 850            for error in self.errors:
    + 851                logger.error(str(error))
    + 852        elif self.error_level == ErrorLevel.RAISE and self.errors:
    + 853            raise ParseError(
    + 854                concat_messages(self.errors, self.max_errors),
    + 855                errors=merge_errors(self.errors),
    + 856            )
    + 857
    + 858    def raise_error(self, message: str, token: t.Optional[Token] = None) -> None:
    + 859        """
    + 860        Appends an error in the list of recorded errors or raises it, depending on the chosen
    + 861        error level setting.
    + 862        """
    + 863        token = token or self._curr or self._prev or Token.string("")
    + 864        start = self._find_token(token)
    + 865        end = start + len(token.text)
    + 866        start_context = self.sql[max(start - self.error_message_context, 0) : start]
    + 867        highlight = self.sql[start:end]
    + 868        end_context = self.sql[end : end + self.error_message_context]
    + 869
    + 870        error = ParseError.new(
    + 871            f"{message}. Line {token.line}, Col: {token.col}.\n"
    + 872            f"  {start_context}\033[4m{highlight}\033[0m{end_context}",
    + 873            description=message,
    + 874            line=token.line,
    + 875            col=token.col,
    + 876            start_context=start_context,
    + 877            highlight=highlight,
    + 878            end_context=end_context,
    + 879        )
    + 880
    + 881        if self.error_level == ErrorLevel.IMMEDIATE:
    + 882            raise error
      883
    - 884        if self.error_level == ErrorLevel.IMMEDIATE:
    - 885            raise error
    - 886
    - 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
    + 884        self.errors.append(error)
    + 885
    + 886    def expression(
    + 887        self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs
    + 888    ) -> exp.Expression:
    + 889        """
    + 890        Creates a new, validated Expression.
    + 891
    + 892        Args:
    + 893            exp_class: the expression class to instantiate.
    + 894            comments: an optional list of comments to attach to the expression.
    + 895            kwargs: the arguments to set for the expression along with their respective values.
    + 896
    + 897        Returns:
    + 898            The target expression.
    + 899        """
    + 900        instance = exp_class(**kwargs)
    + 901        if self._prev_comments:
    + 902            instance.comments = self._prev_comments
    + 903            self._prev_comments = None
    + 904        if comments:
    + 905            instance.comments = comments
    + 906        self.validate_expression(instance)
    + 907        return instance
    + 908
    + 909    def validate_expression(
    + 910        self, expression: exp.Expression, args: t.Optional[t.List] = None
    + 911    ) -> None:
    + 912        """
    + 913        Validates an already instantiated expression, making sure that all its mandatory arguments
    + 914        are set.
    + 915
    + 916        Args:
    + 917            expression: the expression to validate.
    + 918            args: an optional list of items that was used to instantiate the expression, if it's a Func.
    + 919        """
    + 920        if self.error_level == ErrorLevel.IGNORE:
    + 921            return
    + 922
    + 923        for error_message in expression.error_messages(args):
    + 924            self.raise_error(error_message)
      925
    - 926        for error_message in expression.error_messages(args):
    - 927            self.raise_error(error_message)
    + 926    def _find_sql(self, start: Token, end: Token) -> str:
    + 927        return self.sql[self._find_token(start) : self._find_token(end) + len(end.text)]
      928
    - 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        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)
    + 929    def _find_token(self, token: Token) -> int:
    + 930        line = 1
    + 931        col = 1
    + 932        index = 0
    + 933
    + 934        while line < token.line or col < token.col:
    + 935            if Tokenizer.WHITE_SPACE.get(self.sql[index]) == TokenType.BREAK:
    + 936                line += 1
    + 937                col = 1
    + 938            else:
    + 939                col += 1
    + 940            index += 1
    + 941
    + 942        return index
    + 943
    + 944    def _advance(self, times: int = 1) -> None:
    + 945        self._index += times
    + 946        self._curr = seq_get(self._tokens, self._index)
    + 947        self._next = seq_get(self._tokens, self._index + 1)
    + 948        if self._index > 0:
    + 949            self._prev = self._tokens[self._index - 1]
    + 950            self._prev_comments = self._prev.comments
    + 951        else:
    + 952            self._prev = None
    + 953            self._prev_comments = None
    + 954
    + 955    def _retreat(self, index: int) -> None:
    + 956        if index != self._index:
    + 957            self._advance(index - self._index)
    + 958
    + 959    def _parse_command(self) -> exp.Expression:
    + 960        return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string())
      961
    - 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
    + 962    def _parse_comment(self, allow_exists: bool = True) -> exp.Expression:
    + 963        start = self._prev
    + 964        exists = self._parse_exists() if allow_exists else None
    + 965
    + 966        self._match(TokenType.ON)
    + 967
    + 968        kind = self._match_set(self.CREATABLES) and self._prev
    + 969
    + 970        if not kind:
    + 971            return self._parse_as_command(start)
      972
    - 973        if not kind:
    - 974            return self._parse_as_command(start)
    - 975
    - 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
    + 973        if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE):
    + 974            this = self._parse_user_defined_function(kind=kind.token_type)
    + 975        elif kind.token_type == TokenType.TABLE:
    + 976            this = self._parse_table()
    + 977        elif kind.token_type == TokenType.COLUMN:
    + 978            this = self._parse_column()
    + 979        else:
    + 980            this = self._parse_id_var()
    + 981
    + 982        self._match(TokenType.IS)
    + 983
    + 984        return self.expression(
    + 985            exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists
    + 986        )
    + 987
    + 988    def _parse_statement(self) -> t.Optional[exp.Expression]:
    + 989        if self._curr is None:
    + 990            return None
    + 991
    + 992        if self._match_set(self.STATEMENT_PARSERS):
    + 993            return self.STATEMENT_PARSERS[self._prev.token_type](self)
      994
    - 995        if self._match_set(self.STATEMENT_PARSERS):
    - 996            return self.STATEMENT_PARSERS[self._prev.token_type](self)
    + 995        if self._match_set(Tokenizer.COMMANDS):
    + 996            return self._parse_command()
      997
    - 998        if self._match_set(Tokenizer.COMMANDS):
    - 999            return self._parse_command()
    + 998        expression = self._parse_expression()
    + 999        expression = self._parse_set_operations(expression) if expression else self._parse_select()
     1000
    -1001        expression = self._parse_expression()
    -1002        expression = self._parse_set_operations(expression) if expression else self._parse_select()
    +1001        self._parse_query_modifiers(expression)
    +1002        return expression
     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)
    +1004    def _parse_drop(self, default_kind: t.Optional[str] = None) -> t.Optional[exp.Expression]:
    +1005        start = self._prev
    +1006        temporary = self._match(TokenType.TEMPORARY)
    +1007        materialized = self._match(TokenType.MATERIALIZED)
    +1008        kind = self._match_set(self.CREATABLES) and self._prev.text
    +1009        if not kind:
    +1010            if default_kind:
    +1011                kind = default_kind
    +1012            else:
    +1013                return self._parse_as_command(start)
    +1014
    +1015        return self.expression(
    +1016            exp.Drop,
    +1017            exists=self._parse_exists(),
    +1018            this=self._parse_table(schema=True),
    +1019            kind=kind,
    +1020            temporary=temporary,
    +1021            materialized=materialized,
    +1022            cascade=self._match(TokenType.CASCADE),
    +1023        )
    +1024
    +1025    def _parse_exists(self, not_: bool = False) -> t.Optional[bool]:
    +1026        return (
    +1027            self._match(TokenType.IF)
    +1028            and (not not_ or self._match(TokenType.NOT))
    +1029            and self._match(TokenType.EXISTS)
    +1030        )
    +1031
    +1032    def _parse_create(self) -> t.Optional[exp.Expression]:
    +1033        start = self._prev
    +1034        replace = self._prev.text.upper() == "REPLACE" or self._match_pair(
    +1035            TokenType.OR, TokenType.REPLACE
    +1036        )
    +1037        unique = self._match(TokenType.UNIQUE)
    +1038        volatile = self._match(TokenType.VOLATILE)
    +1039
    +1040        if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False):
    +1041            self._match(TokenType.TABLE)
     1042
    -1043        if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False):
    -1044            self._match(TokenType.TABLE)
    +1043        properties = None
    +1044        create_token = self._match_set(self.CREATABLES) and self._prev
     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
    +1046        if not create_token:
    +1047            properties = self._parse_properties()  # exp.Properties.Location.POST_CREATE
    +1048            create_token = self._match_set(self.CREATABLES) and self._prev
    +1049
    +1050            if not properties or not create_token:
    +1051                return self._parse_as_command(start)
     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            this = self._parse_schema(this=table_parts)
    -1092
    -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        )
    +1053        exists = self._parse_exists(not_=True)
    +1054        this = None
    +1055        expression = None
    +1056        indexes = None
    +1057        no_schema_binding = None
    +1058        begin = None
    +1059
    +1060        if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE):
    +1061            this = self._parse_user_defined_function(kind=create_token.token_type)
    +1062            temp_properties = self._parse_properties()
    +1063            if properties and temp_properties:
    +1064                properties.expressions.extend(temp_properties.expressions)
    +1065            elif temp_properties:
    +1066                properties = temp_properties
    +1067
    +1068            self._match(TokenType.ALIAS)
    +1069            begin = self._match(TokenType.BEGIN)
    +1070            return_ = self._match_text_seq("RETURN")
    +1071            expression = self._parse_statement()
    +1072
    +1073            if return_:
    +1074                expression = self.expression(exp.Return, this=expression)
    +1075        elif create_token.token_type == TokenType.INDEX:
    +1076            this = self._parse_index()
    +1077        elif create_token.token_type in self.DB_CREATABLES:
    +1078            table_parts = self._parse_table_parts(schema=True)
    +1079
    +1080            # exp.Properties.Location.POST_NAME
    +1081            if self._match(TokenType.COMMA):
    +1082                temp_properties = self._parse_properties(before=True)
    +1083                if properties and temp_properties:
    +1084                    properties.expressions.extend(temp_properties.expressions)
    +1085                elif temp_properties:
    +1086                    properties = temp_properties
    +1087
    +1088            this = self._parse_schema(this=table_parts)
    +1089
    +1090            # exp.Properties.Location.POST_SCHEMA and POST_WITH
    +1091            temp_properties = self._parse_properties()
    +1092            if properties and temp_properties:
    +1093                properties.expressions.extend(temp_properties.expressions)
    +1094            elif temp_properties:
    +1095                properties = temp_properties
    +1096
    +1097            self._match(TokenType.ALIAS)
    +1098
    +1099            # exp.Properties.Location.POST_ALIAS
    +1100            if not (
    +1101                self._match(TokenType.SELECT, advance=False)
    +1102                or self._match(TokenType.WITH, advance=False)
    +1103                or self._match(TokenType.L_PAREN, advance=False)
    +1104            ):
    +1105                temp_properties = self._parse_properties()
    +1106                if properties and temp_properties:
    +1107                    properties.expressions.extend(temp_properties.expressions)
    +1108                elif temp_properties:
    +1109                    properties = temp_properties
    +1110
    +1111            expression = self._parse_ddl_select()
    +1112
    +1113            if create_token.token_type == TokenType.TABLE:
    +1114                # exp.Properties.Location.POST_EXPRESSION
    +1115                temp_properties = self._parse_properties()
    +1116                if properties and temp_properties:
    +1117                    properties.expressions.extend(temp_properties.expressions)
    +1118                elif temp_properties:
    +1119                    properties = temp_properties
    +1120
    +1121                indexes = []
    +1122                while True:
    +1123                    index = self._parse_create_table_index()
    +1124
    +1125                    # exp.Properties.Location.POST_INDEX
    +1126                    if self._match(TokenType.PARTITION_BY, advance=False):
    +1127                        temp_properties = self._parse_properties()
    +1128                        if properties and temp_properties:
    +1129                            properties.expressions.extend(temp_properties.expressions)
    +1130                        elif temp_properties:
    +1131                            properties = temp_properties
    +1132
    +1133                    if not index:
    +1134                        break
    +1135                    else:
    +1136                        indexes.append(index)
    +1137            elif create_token.token_type == TokenType.VIEW:
    +1138                if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"):
    +1139                    no_schema_binding = True
    +1140
    +1141        return self.expression(
    +1142            exp.Create,
    +1143            this=this,
    +1144            kind=create_token.text,
    +1145            replace=replace,
    +1146            unique=unique,
    +1147            volatile=volatile,
    +1148            expression=expression,
    +1149            exists=exists,
    +1150            properties=properties,
    +1151            indexes=indexes,
    +1152            no_schema_binding=no_schema_binding,
    +1153            begin=begin,
    +1154        )
    +1155
    +1156    def _parse_property_before(self) -> t.Optional[exp.Expression]:
    +1157        self._match(TokenType.COMMA)
     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")
    +1159        # parsers look to _prev for no/dual/default, so need to consume first
    +1160        self._match_text_seq("NO")
    +1161        self._match_text_seq("DUAL")
    +1162        self._match_text_seq("DEFAULT")
    +1163
    +1164        if self.PROPERTY_PARSERS.get(self._curr.text.upper()):
    +1165            return self.PROPERTY_PARSERS[self._curr.text.upper()](self)
     1166
    -1167        if self.PROPERTY_PARSERS.get(self._curr.text.upper()):
    -1168            return self.PROPERTY_PARSERS[self._curr.text.upper()](self)
    -1169
    -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)
    +1167        return None
    +1168
    +1169    def _parse_property(self) -> t.Optional[exp.Expression]:
    +1170        if self._match_texts(self.PROPERTY_PARSERS):
    +1171            return self.PROPERTY_PARSERS[self._prev.text.upper()](self)
    +1172
    +1173        if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET):
    +1174            return self._parse_character_set(default=True)
     1175
    -1176        if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET):
    -1177            return self._parse_character_set(default=True)
    +1176        if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY):
    +1177            return self._parse_sortkey(compound=True)
     1178
    -1179        if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY):
    -1180            return self._parse_sortkey(compound=True)
    +1179        if self._match_text_seq("SQL", "SECURITY"):
    +1180            return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER"))
     1181
    -1182        if self._match_text_seq("SQL", "SECURITY"):
    -1183            return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER"))
    -1184
    -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        )
    +1182        assignment = self._match_pair(
    +1183            TokenType.VAR, TokenType.EQ, advance=False
    +1184        ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False)
    +1185
    +1186        if assignment:
    +1187            key = self._parse_var_or_string()
    +1188            self._match(TokenType.EQ)
    +1189            return self.expression(exp.Property, this=key, value=self._parse_column())
    +1190
    +1191        return None
    +1192
    +1193    def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression:
    +1194        self._match(TokenType.EQ)
    +1195        self._match(TokenType.ALIAS)
    +1196        return self.expression(
    +1197            exp_class,
    +1198            this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(),
    +1199        )
    +1200
    +1201    def _parse_properties(self, before=None) -> t.Optional[exp.Expression]:
    +1202        properties = []
     1203
    -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)
    +1204        while True:
    +1205            if before:
    +1206                identified_property = self._parse_property_before()
    +1207            else:
    +1208                identified_property = self._parse_property()
    +1209
    +1210            if not identified_property:
    +1211                break
    +1212            for p in ensure_collection(identified_property):
    +1213                properties.append(p)
    +1214
    +1215        if properties:
    +1216            return self.expression(exp.Properties, expressions=properties)
     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)
    +1218        return None
    +1219
    +1220    def _parse_fallback(self, no=False) -> exp.Expression:
    +1221        self._match_text_seq("FALLBACK")
    +1222        return self.expression(
    +1223            exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION")
    +1224        )
    +1225
    +1226    def _parse_with_property(
    +1227        self,
    +1228    ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]:
    +1229        self._match(TokenType.WITH)
    +1230        if self._match(TokenType.L_PAREN, advance=False):
    +1231            return self._parse_wrapped_csv(self._parse_property)
    +1232
    +1233        if self._match_text_seq("JOURNAL"):
    +1234            return self._parse_withjournaltable()
     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)
    +1236        if self._match_text_seq("DATA"):
    +1237            return self._parse_withdata(no=False)
    +1238        elif self._match_text_seq("NO", "DATA"):
    +1239            return self._parse_withdata(no=True)
    +1240
    +1241        if not self._next:
    +1242            return None
     1243
    -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        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)
    +1244        return self._parse_withisolatedloading()
    +1245
    +1246    # https://dev.mysql.com/doc/refman/8.0/en/create-view.html
    +1247    def _parse_definer(self) -> t.Optional[exp.Expression]:
    +1248        self._match(TokenType.EQ)
    +1249
    +1250        user = self._parse_id_var()
    +1251        self._match(TokenType.PARAMETER)
    +1252        host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text)
    +1253
    +1254        if not user or not host:
    +1255            return None
     1256
    -1257        if not user or not host:
    -1258            return None
    -1259
    -1260        return exp.DefinerProperty(this=f"{user}@{host}")
    -1261
    -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_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.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:
    +1257        return exp.DefinerProperty(this=f"{user}@{host}")
    +1258
    +1259    def _parse_withjournaltable(self) -> exp.Expression:
    +1260        self._match(TokenType.TABLE)
    +1261        self._match(TokenType.EQ)
    +1262        return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts())
    +1263
    +1264    def _parse_log(self, no=False) -> exp.Expression:
    +1265        self._match_text_seq("LOG")
    +1266        return self.expression(exp.LogProperty, no=no)
    +1267
    +1268    def _parse_journal(self, no=False, dual=False) -> exp.Expression:
    +1269        before = self._match_text_seq("BEFORE")
    +1270        self._match_text_seq("JOURNAL")
    +1271        return self.expression(exp.JournalProperty, no=no, dual=dual, before=before)
    +1272
    +1273    def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression:
    +1274        self._match_text_seq("NOT")
    +1275        self._match_text_seq("LOCAL")
    +1276        self._match_text_seq("AFTER", "JOURNAL")
    +1277        return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local)
    +1278
    +1279    def _parse_checksum(self) -> exp.Expression:
    +1280        self._match_text_seq("CHECKSUM")
    +1281        self._match(TokenType.EQ)
    +1282
    +1283        on = None
    +1284        if self._match(TokenType.ON):
    +1285            on = True
    +1286        elif self._match_text_seq("OFF"):
    +1287            on = False
    +1288        default = self._match(TokenType.DEFAULT)
    +1289
    +1290        return self.expression(
    +1291            exp.ChecksumProperty,
    +1292            on=on,
    +1293            default=default,
    +1294        )
    +1295
    +1296    def _parse_freespace(self) -> exp.Expression:
    +1297        self._match_text_seq("FREESPACE")
    +1298        self._match(TokenType.EQ)
    +1299        return self.expression(
    +1300            exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT)
    +1301        )
    +1302
    +1303    def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression:
    +1304        self._match_text_seq("MERGEBLOCKRATIO")
    +1305        if self._match(TokenType.EQ):
    +1306            return self.expression(
    +1307                exp.MergeBlockRatioProperty,
    +1308                this=self._parse_number(),
    +1309                percent=self._match(TokenType.PERCENT),
    +1310            )
    +1311        else:
    +1312            return self.expression(
    +1313                exp.MergeBlockRatioProperty,
    +1314                no=no,
    +1315                default=default,
    +1316            )
    +1317
    +1318    def _parse_datablocksize(self, default=None) -> exp.Expression:
    +1319        if default:
    +1320            self._match_text_seq("DATABLOCKSIZE")
    +1321            return self.expression(exp.DataBlocksizeProperty, default=True)
    +1322        elif self._match_texts(("MIN", "MINIMUM")):
     1323            self._match_text_seq("DATABLOCKSIZE")
    -1324            return self.expression(exp.DataBlocksizeProperty, default=True)
    -1325        elif self._match_texts(("MIN", "MINIMUM")):
    +1324            return self.expression(exp.DataBlocksizeProperty, min=True)
    +1325        elif self._match_texts(("MAX", "MAXIMUM")):
     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        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        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        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()
    +1327            return self.expression(exp.DataBlocksizeProperty, min=False)
    +1328
    +1329        self._match_text_seq("DATABLOCKSIZE")
    +1330        self._match(TokenType.EQ)
    +1331        size = self._parse_number()
    +1332        units = None
    +1333        if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")):
    +1334            units = self._prev.text
    +1335        return self.expression(exp.DataBlocksizeProperty, size=size, units=units)
    +1336
    +1337    def _parse_blockcompression(self) -> exp.Expression:
    +1338        self._match_text_seq("BLOCKCOMPRESSION")
    +1339        self._match(TokenType.EQ)
    +1340        always = self._match_text_seq("ALWAYS")
    +1341        manual = self._match_text_seq("MANUAL")
    +1342        never = self._match_text_seq("NEVER")
    +1343        default = self._match_text_seq("DEFAULT")
    +1344        autotemp = None
    +1345        if self._match_text_seq("AUTOTEMP"):
    +1346            autotemp = self._parse_schema()
    +1347
    +1348        return self.expression(
    +1349            exp.BlockCompressionProperty,
    +1350            always=always,
    +1351            manual=manual,
    +1352            never=never,
    +1353            default=default,
    +1354            autotemp=autotemp,
    +1355        )
    +1356
    +1357    def _parse_withisolatedloading(self) -> exp.Expression:
    +1358        no = self._match_text_seq("NO")
    +1359        concurrent = self._match_text_seq("CONCURRENT")
    +1360        self._match_text_seq("ISOLATED", "LOADING")
    +1361        for_all = self._match_text_seq("FOR", "ALL")
    +1362        for_insert = self._match_text_seq("FOR", "INSERT")
    +1363        for_none = self._match_text_seq("FOR", "NONE")
    +1364        return self.expression(
    +1365            exp.IsolatedLoadingProperty,
    +1366            no=no,
    +1367            concurrent=concurrent,
    +1368            for_all=for_all,
    +1369            for_insert=for_insert,
    +1370            for_none=for_none,
    +1371        )
    +1372
    +1373    def _parse_locking(self) -> exp.Expression:
    +1374        if self._match(TokenType.TABLE):
    +1375            kind = "TABLE"
    +1376        elif self._match(TokenType.VIEW):
    +1377            kind = "VIEW"
    +1378        elif self._match(TokenType.ROW):
    +1379            kind = "ROW"
    +1380        elif self._match_text_seq("DATABASE"):
    +1381            kind = "DATABASE"
    +1382        else:
    +1383            kind = None
    +1384
    +1385        if kind in ("DATABASE", "TABLE", "VIEW"):
    +1386            this = self._parse_table_parts()
    +1387        else:
    +1388            this = None
    +1389
    +1390        if self._match(TokenType.FOR):
    +1391            for_or_in = "FOR"
    +1392        elif self._match(TokenType.IN):
    +1393            for_or_in = "IN"
    +1394        else:
    +1395            for_or_in = None
    +1396
    +1397        if self._match_text_seq("ACCESS"):
    +1398            lock_type = "ACCESS"
    +1399        elif self._match_texts(("EXCL", "EXCLUSIVE")):
    +1400            lock_type = "EXCLUSIVE"
    +1401        elif self._match_text_seq("SHARE"):
    +1402            lock_type = "SHARE"
    +1403        elif self._match_text_seq("READ"):
    +1404            lock_type = "READ"
    +1405        elif self._match_text_seq("WRITE"):
    +1406            lock_type = "WRITE"
    +1407        elif self._match_text_seq("CHECKSUM"):
    +1408            lock_type = "CHECKSUM"
    +1409        else:
    +1410            lock_type = None
    +1411
    +1412        override = self._match_text_seq("OVERRIDE")
    +1413
    +1414        return self.expression(
    +1415            exp.LockingProperty,
    +1416            this=this,
    +1417            kind=kind,
    +1418            for_or_in=for_or_in,
    +1419            lock_type=lock_type,
    +1420            override=override,
    +1421        )
    +1422
    +1423    def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]:
    +1424        if self._match(TokenType.PARTITION_BY):
    +1425            return self._parse_csv(self._parse_conjunction)
    +1426        return []
    +1427
    +1428    def _parse_partitioned_by(self) -> exp.Expression:
    +1429        self._match(TokenType.EQ)
    +1430        return self.expression(
    +1431            exp.PartitionedByProperty,
    +1432            this=self._parse_schema() or self._parse_bracket(self._parse_field()),
    +1433        )
    +1434
    +1435    def _parse_withdata(self, no=False) -> exp.Expression:
    +1436        if self._match_text_seq("AND", "STATISTICS"):
    +1437            statistics = True
    +1438        elif self._match_text_seq("AND", "NO", "STATISTICS"):
    +1439            statistics = False
    +1440        else:
    +1441            statistics = None
    +1442
    +1443        return self.expression(exp.WithDataProperty, no=no, statistics=statistics)
    +1444
    +1445    def _parse_noprimaryindex(self) -> exp.Expression:
    +1446        self._match_text_seq("PRIMARY", "INDEX")
    +1447        return exp.NoPrimaryIndexProperty()
    +1448
    +1449    def _parse_oncommit(self) -> exp.Expression:
    +1450        self._match_text_seq("COMMIT", "PRESERVE", "ROWS")
    +1451        return exp.OnCommitProperty()
    +1452
    +1453    def _parse_distkey(self) -> exp.Expression:
    +1454        return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var))
     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()
    +1456    def _parse_create_like(self) -> t.Optional[exp.Expression]:
    +1457        table = self._parse_table(schema=True)
    +1458        options = []
    +1459        while self._match_texts(("INCLUDING", "EXCLUDING")):
    +1460            this = self._prev.text.upper()
    +1461            id_var = self._parse_id_var()
    +1462
    +1463            if not id_var:
    +1464                return None
     1465
    -1466            if not id_var:
    -1467                return None
    -1468
    -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        return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column))
    -1555
    -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
    +1466            options.append(
    +1467                self.expression(
    +1468                    exp.Property,
    +1469                    this=this,
    +1470                    value=exp.Var(this=id_var.this.upper()),
    +1471                )
    +1472            )
    +1473        return self.expression(exp.LikeProperty, this=table, expressions=options)
    +1474
    +1475    def _parse_sortkey(self, compound: bool = False) -> exp.Expression:
    +1476        return self.expression(
    +1477            exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound
    +1478        )
    +1479
    +1480    def _parse_character_set(self, default: bool = False) -> exp.Expression:
    +1481        self._match(TokenType.EQ)
    +1482        return self.expression(
    +1483            exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default
    +1484        )
    +1485
    +1486    def _parse_returns(self) -> exp.Expression:
    +1487        value: t.Optional[exp.Expression]
    +1488        is_table = self._match(TokenType.TABLE)
    +1489
    +1490        if is_table:
    +1491            if self._match(TokenType.LT):
    +1492                value = self.expression(
    +1493                    exp.Schema,
    +1494                    this="TABLE",
    +1495                    expressions=self._parse_csv(self._parse_struct_kwargs),
    +1496                )
    +1497                if not self._match(TokenType.GT):
    +1498                    self.raise_error("Expecting >")
    +1499            else:
    +1500                value = self._parse_schema(exp.Var(this="TABLE"))
    +1501        else:
    +1502            value = self._parse_types()
    +1503
    +1504        return self.expression(exp.ReturnsProperty, this=value, is_table=is_table)
    +1505
    +1506    def _parse_temporary(self, global_=False) -> exp.Expression:
    +1507        self._match(TokenType.TEMPORARY)  # in case calling from "GLOBAL"
    +1508        return self.expression(exp.TemporaryProperty, global_=global_)
    +1509
    +1510    def _parse_describe(self) -> exp.Expression:
    +1511        kind = self._match_set(self.CREATABLES) and self._prev.text
    +1512        this = self._parse_table()
    +1513
    +1514        return self.expression(exp.Describe, this=this, kind=kind)
    +1515
    +1516    def _parse_insert(self) -> exp.Expression:
    +1517        overwrite = self._match(TokenType.OVERWRITE)
    +1518        local = self._match(TokenType.LOCAL)
    +1519        alternative = None
    +1520
    +1521        if self._match_text_seq("DIRECTORY"):
    +1522            this: t.Optional[exp.Expression] = self.expression(
    +1523                exp.Directory,
    +1524                this=self._parse_var_or_string(),
    +1525                local=local,
    +1526                row_format=self._parse_row_format(match_row=True),
    +1527            )
    +1528        else:
    +1529            if self._match(TokenType.OR):
    +1530                alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text
    +1531
    +1532            self._match(TokenType.INTO)
    +1533            self._match(TokenType.TABLE)
    +1534            this = self._parse_table(schema=True)
    +1535
    +1536        return self.expression(
    +1537            exp.Insert,
    +1538            this=this,
    +1539            exists=self._parse_exists(),
    +1540            partition=self._parse_partition(),
    +1541            expression=self._parse_ddl_select(),
    +1542            returning=self._parse_returning(),
    +1543            overwrite=overwrite,
    +1544            alternative=alternative,
    +1545        )
    +1546
    +1547    def _parse_returning(self) -> t.Optional[exp.Expression]:
    +1548        if not self._match(TokenType.RETURNING):
    +1549            return None
    +1550
    +1551        return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column))
    +1552
    +1553    def _parse_row(self) -> t.Optional[exp.Expression]:
    +1554        if not self._match(TokenType.FORMAT):
    +1555            return None
    +1556        return self._parse_row_format()
    +1557
    +1558    def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]:
    +1559        if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT):
    +1560            return None
    +1561
    +1562        if self._match_text_seq("SERDE"):
    +1563            return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string())
     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.LoadData,
    -1596            this=self._parse_table(schema=True),
    -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        )
    +1565        self._match_text_seq("DELIMITED")
    +1566
    +1567        kwargs = {}
    +1568
    +1569        if self._match_text_seq("FIELDS", "TERMINATED", "BY"):
    +1570            kwargs["fields"] = self._parse_string()
    +1571            if self._match_text_seq("ESCAPED", "BY"):
    +1572                kwargs["escaped"] = self._parse_string()
    +1573        if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"):
    +1574            kwargs["collection_items"] = self._parse_string()
    +1575        if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"):
    +1576            kwargs["map_keys"] = self._parse_string()
    +1577        if self._match_text_seq("LINES", "TERMINATED", "BY"):
    +1578            kwargs["lines"] = self._parse_string()
    +1579        if self._match_text_seq("NULL", "DEFINED", "AS"):
    +1580            kwargs["null"] = self._parse_string()
    +1581
    +1582        return self.expression(exp.RowFormatDelimitedProperty, **kwargs)  # type: ignore
    +1583
    +1584    def _parse_load_data(self) -> exp.Expression:
    +1585        local = self._match(TokenType.LOCAL)
    +1586        self._match_text_seq("INPATH")
    +1587        inpath = self._parse_string()
    +1588        overwrite = self._match(TokenType.OVERWRITE)
    +1589        self._match_pair(TokenType.INTO, TokenType.TABLE)
    +1590
    +1591        return self.expression(
    +1592            exp.LoadData,
    +1593            this=self._parse_table(schema=True),
    +1594            local=local,
    +1595            overwrite=overwrite,
    +1596            inpath=inpath,
    +1597            partition=self._parse_partition(),
    +1598            input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(),
    +1599            serde=self._match_text_seq("SERDE") and self._parse_string(),
    +1600        )
    +1601
    +1602    def _parse_delete(self) -> exp.Expression:
    +1603        self._match(TokenType.FROM)
     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    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    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 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            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                )
    +1605        return self.expression(
    +1606            exp.Delete,
    +1607            this=self._parse_table(schema=True),
    +1608            using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()),
    +1609            where=self._parse_where(),
    +1610            returning=self._parse_returning(),
    +1611        )
    +1612
    +1613    def _parse_update(self) -> exp.Expression:
    +1614        return self.expression(
    +1615            exp.Update,
    +1616            **{  # type: ignore
    +1617                "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS),
    +1618                "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality),
    +1619                "from": self._parse_from(),
    +1620                "where": self._parse_where(),
    +1621                "returning": self._parse_returning(),
    +1622            },
    +1623        )
    +1624
    +1625    def _parse_uncache(self) -> exp.Expression:
    +1626        if not self._match(TokenType.TABLE):
    +1627            self.raise_error("Expecting TABLE after UNCACHE")
    +1628
    +1629        return self.expression(
    +1630            exp.Uncache,
    +1631            exists=self._parse_exists(),
    +1632            this=self._parse_table(schema=True),
    +1633        )
    +1634
    +1635    def _parse_cache(self) -> exp.Expression:
    +1636        lazy = self._match(TokenType.LAZY)
    +1637        self._match(TokenType.TABLE)
    +1638        table = self._parse_table(schema=True)
    +1639        options = []
    +1640
    +1641        if self._match(TokenType.OPTIONS):
    +1642            self._match_l_paren()
    +1643            k = self._parse_string()
    +1644            self._match(TokenType.EQ)
    +1645            v = self._parse_string()
    +1646            options = [k, v]
    +1647            self._match_r_paren()
    +1648
    +1649        self._match(TokenType.ALIAS)
    +1650        return self.expression(
    +1651            exp.Cache,
    +1652            this=table,
    +1653            lazy=lazy,
    +1654            options=options,
    +1655            expression=self._parse_select(nested=True),
    +1656        )
    +1657
    +1658    def _parse_partition(self) -> t.Optional[exp.Expression]:
    +1659        if not self._match(TokenType.PARTITION):
    +1660            return None
    +1661
    +1662        return self.expression(
    +1663            exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction)
    +1664        )
    +1665
    +1666    def _parse_value(self) -> exp.Expression:
    +1667        if self._match(TokenType.L_PAREN):
    +1668            expressions = self._parse_csv(self._parse_conjunction)
    +1669            self._match_r_paren()
    +1670            return self.expression(exp.Tuple, expressions=expressions)
    +1671
    +1672        # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows.
    +1673        # Source: https://prestodb.io/docs/current/sql/values.html
    +1674        return self.expression(exp.Tuple, expressions=[self._parse_conjunction()])
    +1675
    +1676    def _parse_select(
    +1677        self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True
    +1678    ) -> t.Optional[exp.Expression]:
    +1679        cte = self._parse_with()
    +1680        if cte:
    +1681            this = self._parse_statement()
    +1682
    +1683            if not this:
    +1684                self.raise_error("Failed to parse any statement following CTE")
    +1685                return cte
    +1686
    +1687            if "with" in this.arg_types:
    +1688                this.set("with", cte)
    +1689            else:
    +1690                self.raise_error(f"{this.key} does not support CTE")
    +1691                this = cte
    +1692        elif self._match(TokenType.SELECT):
    +1693            comments = self._prev_comments
    +1694
    +1695            hint = self._parse_hint()
    +1696            all_ = self._match(TokenType.ALL)
    +1697            distinct = self._match(TokenType.DISTINCT)
    +1698
    +1699            if distinct:
    +1700                distinct = self.expression(
    +1701                    exp.Distinct,
    +1702                    on=self._parse_value() if self._match(TokenType.ON) else None,
    +1703                )
    +1704
    +1705            if all_ and distinct:
    +1706                self.raise_error("Cannot specify both ALL and DISTINCT after SELECT")
     1707
    -1708            if all_ and distinct:
    -1709                self.raise_error("Cannot specify both ALL and DISTINCT after SELECT")
    +1708            limit = self._parse_limit(top=True)
    +1709            expressions = self._parse_csv(self._parse_expression)
     1710
    -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
    +1711            this = self.expression(
    +1712                exp.Select,
    +1713                hint=hint,
    +1714                distinct=distinct,
    +1715                expressions=expressions,
    +1716                limit=limit,
    +1717            )
    +1718            this.comments = comments
    +1719
    +1720            into = self._parse_into()
    +1721            if into:
    +1722                this.set("into", into)
    +1723
    +1724            from_ = self._parse_from()
    +1725            if from_:
    +1726                this.set("from", from_)
    +1727
    +1728            self._parse_query_modifiers(this)
    +1729        elif (table or nested) and self._match(TokenType.L_PAREN):
    +1730            this = self._parse_table() if table else self._parse_select(nested=True)
     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        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
    +1732            this = self._parse_set_operations(this)
    +1733            self._match_r_paren()
    +1734
    +1735            # early return so that subquery unions aren't parsed again
    +1736            # SELECT * FROM (SELECT 1) UNION ALL SELECT 1
    +1737            # Union ALL should be a property of the top select node, not the subquery
    +1738            return self._parse_subquery(this, parse_alias=parse_subquery_alias)
    +1739        elif self._match(TokenType.VALUES):
    +1740            this = self.expression(
    +1741                exp.Values,
    +1742                expressions=self._parse_csv(self._parse_value),
    +1743                alias=self._parse_table_alias(),
    +1744            )
    +1745        else:
    +1746            this = None
    +1747
    +1748        return self._parse_set_operations(this)
    +1749
    +1750    def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]:
    +1751        if not skip_with_token and not self._match(TokenType.WITH):
    +1752            return None
    +1753
    +1754        recursive = self._match(TokenType.RECURSIVE)
    +1755
    +1756        expressions = []
    +1757        while True:
    +1758            expressions.append(self._parse_cte())
    +1759
    +1760            if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH):
    +1761                break
    +1762            else:
    +1763                self._match(TokenType.WITH)
    +1764
    +1765        return self.expression(exp.With, expressions=expressions, recursive=recursive)
    +1766
    +1767    def _parse_cte(self) -> exp.Expression:
    +1768        alias = self._parse_table_alias()
    +1769        if not alias or not alias.this:
    +1770            self.raise_error("Expected CTE to have alias")
    +1771
    +1772        self._match(TokenType.ALIAS)
    +1773
    +1774        return self.expression(
    +1775            exp.CTE,
    +1776            this=self._parse_wrapped(self._parse_statement),
    +1777            alias=alias,
    +1778        )
    +1779
    +1780    def _parse_table_alias(
    +1781        self, alias_tokens: t.Optional[t.Collection[TokenType]] = None
    +1782    ) -> t.Optional[exp.Expression]:
    +1783        any_token = self._match(TokenType.ALIAS)
    +1784        alias = self._parse_id_var(
    +1785            any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS
    +1786        )
    +1787        index = self._index
    +1788
    +1789        if self._match(TokenType.L_PAREN):
    +1790            columns = self._parse_csv(self._parse_function_parameter)
    +1791            self._match_r_paren() if columns else self._retreat(index)
    +1792        else:
    +1793            columns = None
    +1794
    +1795        if not alias and not columns:
    +1796            return None
     1797
    -1798        if not alias and not columns:
    -1799            return None
    -1800
    -1801        return self.expression(exp.TableAlias, this=alias, columns=columns)
    -1802
    -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        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
    +1798        return self.expression(exp.TableAlias, this=alias, columns=columns)
    +1799
    +1800    def _parse_subquery(
    +1801        self, this: t.Optional[exp.Expression], parse_alias: bool = True
    +1802    ) -> exp.Expression:
    +1803        return self.expression(
    +1804            exp.Subquery,
    +1805            this=this,
    +1806            pivots=self._parse_pivots(),
    +1807            alias=self._parse_table_alias() if parse_alias else None,
    +1808        )
    +1809
    +1810    def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None:
    +1811        if not isinstance(this, self.MODIFIABLES):
    +1812            return
    +1813
    +1814        table = isinstance(this, exp.Table)
    +1815
    +1816        while True:
    +1817            lateral = self._parse_lateral()
    +1818            join = self._parse_join()
    +1819            comma = None if table else self._match(TokenType.COMMA)
    +1820            if lateral:
    +1821                this.append("laterals", lateral)
    +1822            if join:
    +1823                this.append("joins", join)
    +1824            if comma:
    +1825                this.args["from"].append("expressions", self._parse_table())
    +1826            if not (lateral or join or comma):
    +1827                break
    +1828
    +1829        for key, parser in self.QUERY_MODIFIER_PARSERS.items():
    +1830            expression = parser(self)
     1831
    -1832        for key, parser in self.QUERY_MODIFIER_PARSERS.items():
    -1833            expression = parser(self)
    +1832            if expression:
    +1833                this.set(key, expression)
     1834
    -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    def _parse_into(self) -> t.Optional[exp.Expression]:
    -1848        if not self._match(TokenType.INTO):
    -1849            return None
    -1850
    -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
    +1835    def _parse_hint(self) -> t.Optional[exp.Expression]:
    +1836        if self._match(TokenType.HINT):
    +1837            hints = self._parse_csv(self._parse_function)
    +1838            if not self._match_pair(TokenType.STAR, TokenType.SLASH):
    +1839                self.raise_error("Expected */ after HINT")
    +1840            return self.expression(exp.Hint, expressions=hints)
    +1841
    +1842        return None
    +1843
    +1844    def _parse_into(self) -> t.Optional[exp.Expression]:
    +1845        if not self._match(TokenType.INTO):
    +1846            return None
    +1847
    +1848        temp = self._match(TokenType.TEMPORARY)
    +1849        unlogged = self._match(TokenType.UNLOGGED)
    +1850        self._match(TokenType.TABLE)
    +1851
    +1852        return self.expression(
    +1853            exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged
    +1854        )
    +1855
    +1856    def _parse_from(self) -> t.Optional[exp.Expression]:
    +1857        if not self._match(TokenType.FROM):
    +1858            return None
    +1859
    +1860        return self.expression(
    +1861            exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table)
    +1862        )
    +1863
    +1864    def _parse_match_recognize(self) -> t.Optional[exp.Expression]:
    +1865        if not self._match(TokenType.MATCH_RECOGNIZE):
    +1866            return None
    +1867        self._match_l_paren()
    +1868
    +1869        partition = self._parse_partition_by()
    +1870        order = self._parse_order()
    +1871        measures = (
    +1872            self._parse_alias(self._parse_conjunction())
    +1873            if self._match_text_seq("MEASURES")
    +1874            else None
    +1875        )
    +1876
    +1877        if self._match_text_seq("ONE", "ROW", "PER", "MATCH"):
    +1878            rows = exp.Var(this="ONE ROW PER MATCH")
    +1879        elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"):
    +1880            text = "ALL ROWS PER MATCH"
    +1881            if self._match_text_seq("SHOW", "EMPTY", "MATCHES"):
    +1882                text += f" SHOW EMPTY MATCHES"
    +1883            elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"):
    +1884                text += f" OMIT EMPTY MATCHES"
    +1885            elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"):
    +1886                text += f" WITH UNMATCHED ROWS"
    +1887            rows = exp.Var(this=text)
    +1888        else:
    +1889            rows = None
    +1890
    +1891        if self._match_text_seq("AFTER", "MATCH", "SKIP"):
    +1892            text = "AFTER MATCH SKIP"
    +1893            if self._match_text_seq("PAST", "LAST", "ROW"):
    +1894                text += f" PAST LAST ROW"
    +1895            elif self._match_text_seq("TO", "NEXT", "ROW"):
    +1896                text += f" TO NEXT ROW"
    +1897            elif self._match_text_seq("TO", "FIRST"):
    +1898                text += f" TO FIRST {self._advance_any().text}"  # type: ignore
    +1899            elif self._match_text_seq("TO", "LAST"):
    +1900                text += f" TO LAST {self._advance_any().text}"  # type: ignore
    +1901            after = exp.Var(this=text)
    +1902        else:
    +1903            after = None
    +1904
    +1905        if self._match_text_seq("PATTERN"):
    +1906            self._match_l_paren()
     1907
    -1908        if self._match_text_seq("PATTERN"):
    -1909            self._match_l_paren()
    +1908            if not self._curr:
    +1909                self.raise_error("Expecting )", self._curr)
     1910
    -1911            if not self._curr:
    -1912                self.raise_error("Expecting )", self._curr)
    +1911            paren = 1
    +1912            start = self._curr
     1913
    -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        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        )
    +1914            while self._curr and paren > 0:
    +1915                if self._curr.token_type == TokenType.L_PAREN:
    +1916                    paren += 1
    +1917                if self._curr.token_type == TokenType.R_PAREN:
    +1918                    paren -= 1
    +1919                end = self._prev
    +1920                self._advance()
    +1921            if paren > 0:
    +1922                self.raise_error("Expecting )", self._curr)
    +1923            pattern = exp.Var(this=self._find_sql(start, end))
    +1924        else:
    +1925            pattern = None
    +1926
    +1927        define = (
    +1928            self._parse_alias(self._parse_conjunction()) if self._match_text_seq("DEFINE") else None
    +1929        )
    +1930        self._match_r_paren()
    +1931
    +1932        return self.expression(
    +1933            exp.MatchRecognize,
    +1934            partition_by=partition,
    +1935            order=order,
    +1936            measures=measures,
    +1937            rows=rows,
    +1938            after=after,
    +1939            pattern=pattern,
    +1940            define=define,
    +1941        )
    +1942
    +1943    def _parse_lateral(self) -> t.Optional[exp.Expression]:
    +1944        outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY)
    +1945        cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY)
    +1946
    +1947        if outer_apply or cross_apply:
    +1948            this = self._parse_select(table=True)
    +1949            view = None
    +1950            outer = not cross_apply
    +1951        elif self._match(TokenType.LATERAL):
    +1952            this = self._parse_select(table=True)
    +1953            view = self._match(TokenType.VIEW)
    +1954            outer = self._match(TokenType.OUTER)
    +1955        else:
    +1956            return None
    +1957
    +1958        if not this:
    +1959            this = self._parse_function() or self._parse_id_var(any_token=False)
    +1960            while self._match(TokenType.DOT):
    +1961                this = exp.Dot(
    +1962                    this=this,
    +1963                    expression=self._parse_function() or self._parse_id_var(any_token=False),
    +1964                )
    +1965
    +1966        table_alias: t.Optional[exp.Expression]
    +1967
    +1968        if view:
    +1969            table = self._parse_id_var(any_token=False)
    +1970            columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else []
    +1971            table_alias = self.expression(exp.TableAlias, this=table, columns=columns)
    +1972        else:
    +1973            table_alias = self._parse_table_alias()
    +1974
    +1975        expression = self.expression(
    +1976            exp.Lateral,
    +1977            this=this,
    +1978            view=view,
    +1979            outer=outer,
    +1980            alias=table_alias,
    +1981        )
    +1982
    +1983        if outer_apply or cross_apply:
    +1984            return self.expression(exp.Join, this=expression, side=None if cross_apply else "LEFT")
     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        )
    +1986        return expression
    +1987
    +1988    def _parse_join_side_and_kind(
    +1989        self,
    +1990    ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]:
    +1991        return (
    +1992            self._match(TokenType.NATURAL) and self._prev,
    +1993            self._match_set(self.JOIN_SIDES) and self._prev,
    +1994            self._match_set(self.JOIN_KINDS) and self._prev,
    +1995        )
    +1996
    +1997    def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]:
    +1998        natural, side, kind = self._parse_join_side_and_kind()
     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()
    +2000        if not skip_join_token and not self._match(TokenType.JOIN):
    +2001            return None
     2002
    -2003        if not skip_join_token and not self._match(TokenType.JOIN):
    -2004            return None
    -2005
    -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        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()
    +2003        kwargs: t.Dict[
    +2004            str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]]
    +2005        ] = {"this": self._parse_table()}
    +2006
    +2007        if natural:
    +2008            kwargs["natural"] = True
    +2009        if side:
    +2010            kwargs["side"] = side.text
    +2011        if kind:
    +2012            kwargs["kind"] = kind.text
    +2013
    +2014        if self._match(TokenType.ON):
    +2015            kwargs["on"] = self._parse_conjunction()
    +2016        elif self._match(TokenType.USING):
    +2017            kwargs["using"] = self._parse_wrapped_id_vars()
    +2018
    +2019        return self.expression(exp.Join, **kwargs)  # type: ignore
    +2020
    +2021    def _parse_index(self) -> exp.Expression:
    +2022        index = self._parse_id_var()
    +2023        self._match(TokenType.ON)
    +2024        self._match(TokenType.TABLE)  # hive
    +2025
    +2026        return self.expression(
    +2027            exp.Index,
    +2028            this=index,
    +2029            table=self.expression(exp.Table, this=self._parse_id_var()),
    +2030            columns=self._parse_expression(),
    +2031        )
    +2032
    +2033    def _parse_create_table_index(self) -> t.Optional[exp.Expression]:
    +2034        unique = self._match(TokenType.UNIQUE)
    +2035        primary = self._match_text_seq("PRIMARY")
    +2036        amp = self._match_text_seq("AMP")
    +2037        if not self._match(TokenType.INDEX):
    +2038            return None
    +2039        index = self._parse_id_var()
    +2040        columns = None
    +2041        if self._match(TokenType.L_PAREN, advance=False):
    +2042            columns = self._parse_wrapped_csv(self._parse_column)
    +2043        return self.expression(
    +2044            exp.Index,
    +2045            this=index,
    +2046            columns=columns,
    +2047            unique=unique,
    +2048            primary=primary,
    +2049            amp=amp,
    +2050        )
    +2051
    +2052    def _parse_table_parts(self, schema: bool = False) -> exp.Expression:
    +2053        catalog = None
    +2054        db = None
    +2055        table = (not schema and self._parse_function()) or self._parse_id_var(any_token=False)
    +2056
    +2057        while self._match(TokenType.DOT):
    +2058            if catalog:
    +2059                # This allows nesting the table in arbitrarily many dot expressions if needed
    +2060                table = self.expression(exp.Dot, this=table, expression=self._parse_id_var())
    +2061            else:
    +2062                catalog = db
    +2063                db = table
    +2064                table = self._parse_id_var()
    +2065
    +2066        if not table:
    +2067            self.raise_error(f"Expected table name but got {self._curr}")
     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()
    +2069        return self.expression(
    +2070            exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots()
    +2071        )
    +2072
    +2073    def _parse_table(
    +2074        self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None
    +2075    ) -> t.Optional[exp.Expression]:
    +2076        lateral = self._parse_lateral()
    +2077
    +2078        if lateral:
    +2079            return lateral
     2080
    -2081        if lateral:
    -2082            return lateral
    -2083
    -2084        unnest = self._parse_unnest()
    +2081        unnest = self._parse_unnest()
    +2082
    +2083        if unnest:
    +2084            return unnest
     2085
    -2086        if unnest:
    -2087            return unnest
    -2088
    -2089        values = self._parse_derived_table_values()
    +2086        values = self._parse_derived_table_values()
    +2087
    +2088        if values:
    +2089            return values
     2090
    -2091        if values:
    -2092            return values
    -2093
    -2094        subquery = self._parse_select(table=True)
    +2091        subquery = self._parse_select(table=True)
    +2092
    +2093        if subquery:
    +2094            return subquery
     2095
    -2096        if subquery:
    -2097            return subquery
    -2098
    -2099        this = self._parse_table_parts(schema=schema)
    +2096        this = self._parse_table_parts(schema=schema)
    +2097
    +2098        if schema:
    +2099            return self._parse_schema(this=this)
     2100
    -2101        if schema:
    -2102            return self._parse_schema(this=this)
    +2101        if self.alias_post_tablesample:
    +2102            table_sample = self._parse_table_sample()
     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)
    +2104        alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS)
    +2105
    +2106        if alias:
    +2107            this.set("alias", alias)
     2108
    -2109        if alias:
    -2110            this.set("alias", alias)
    +2109        if not this.args.get("pivots"):
    +2110            this.set("pivots", self._parse_pivots())
     2111
    -2112        if not this.args.get("pivots"):
    -2113            this.set("pivots", self._parse_pivots())
    -2114
    -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()
    +2112        if self._match_pair(TokenType.WITH, TokenType.L_PAREN):
    +2113            this.set(
    +2114                "hints",
    +2115                self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)),
    +2116            )
    +2117            self._match_r_paren()
    +2118
    +2119        if not self.alias_post_tablesample:
    +2120            table_sample = self._parse_table_sample()
     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        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    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)
    +2122        if table_sample:
    +2123            table_sample.set("this", this)
    +2124            this = table_sample
    +2125
    +2126        return this
    +2127
    +2128    def _parse_unnest(self) -> t.Optional[exp.Expression]:
    +2129        if not self._match(TokenType.UNNEST):
    +2130            return None
    +2131
    +2132        expressions = self._parse_wrapped_csv(self._parse_column)
    +2133        ordinality = bool(self._match(TokenType.WITH) and self._match(TokenType.ORDINALITY))
    +2134        alias = self._parse_table_alias()
    +2135
    +2136        if alias and self.unnest_column_only:
    +2137            if alias.args.get("columns"):
    +2138                self.raise_error("Unexpected extra column alias in unnest.")
    +2139            alias.set("columns", [alias.this])
    +2140            alias.set("this", None)
    +2141
    +2142        offset = None
    +2143        if self._match_pair(TokenType.WITH, TokenType.OFFSET):
    +2144            self._match(TokenType.ALIAS)
    +2145            offset = self._parse_conjunction()
    +2146
    +2147        return self.expression(
    +2148            exp.Unnest,
    +2149            expressions=expressions,
    +2150            ordinality=ordinality,
    +2151            alias=alias,
    +2152            offset=offset,
    +2153        )
    +2154
    +2155    def _parse_derived_table_values(self) -> t.Optional[exp.Expression]:
    +2156        is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES)
    +2157        if not is_derived and not self._match(TokenType.VALUES):
    +2158            return None
    +2159
    +2160        expressions = self._parse_csv(self._parse_value)
    +2161
    +2162        if is_derived:
    +2163            self._match_r_paren()
     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
    +2165        return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias())
    +2166
    +2167    def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]:
    +2168        if not self._match(TokenType.TABLE_SAMPLE) and not (
    +2169            as_modifier and self._match_text_seq("USING", "SAMPLE")
    +2170        ):
    +2171            return None
    +2172
    +2173        bucket_numerator = None
    +2174        bucket_denominator = None
    +2175        bucket_field = None
    +2176        percent = None
    +2177        rows = None
    +2178        size = None
    +2179        seed = None
    +2180
    +2181        kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE"
    +2182        method = self._parse_var(tokens=(TokenType.ROW,))
     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        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        )
    +2184        self._match(TokenType.L_PAREN)
    +2185
    +2186        num = self._parse_number()
    +2187
    +2188        if self._match(TokenType.BUCKET):
    +2189            bucket_numerator = self._parse_number()
    +2190            self._match(TokenType.OUT_OF)
    +2191            bucket_denominator = bucket_denominator = self._parse_number()
    +2192            self._match(TokenType.ON)
    +2193            bucket_field = self._parse_field()
    +2194        elif self._match_set((TokenType.PERCENT, TokenType.MOD)):
    +2195            percent = num
    +2196        elif self._match(TokenType.ROWS):
    +2197            rows = num
    +2198        else:
    +2199            size = num
    +2200
    +2201        self._match(TokenType.R_PAREN)
    +2202
    +2203        if self._match(TokenType.L_PAREN):
    +2204            method = self._parse_var()
    +2205            seed = self._match(TokenType.COMMA) and self._parse_number()
    +2206            self._match_r_paren()
    +2207        elif self._match_texts(("SEED", "REPEATABLE")):
    +2208            seed = self._parse_wrapped(self._parse_number)
    +2209
    +2210        return self.expression(
    +2211            exp.TableSample,
    +2212            method=method,
    +2213            bucket_numerator=bucket_numerator,
    +2214            bucket_denominator=bucket_denominator,
    +2215            bucket_field=bucket_field,
    +2216            percent=percent,
    +2217            rows=rows,
    +2218            size=size,
    +2219            seed=seed,
    +2220            kind=kind,
    +2221        )
    +2222
    +2223    def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]:
    +2224        return list(iter(self._parse_pivot, None))
     2225
    -2226    def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]:
    -2227        return list(iter(self._parse_pivot, None))
    +2226    def _parse_pivot(self) -> t.Optional[exp.Expression]:
    +2227        index = self._index
     2228
    -2229    def _parse_pivot(self) -> t.Optional[exp.Expression]:
    -2230        index = self._index
    -2231
    -2232        if self._match(TokenType.PIVOT):
    -2233            unpivot = False
    -2234        elif self._match(TokenType.UNPIVOT):
    -2235            unpivot = True
    -2236        else:
    -2237            return None
    +2229        if self._match(TokenType.PIVOT):
    +2230            unpivot = False
    +2231        elif self._match(TokenType.UNPIVOT):
    +2232            unpivot = True
    +2233        else:
    +2234            return None
    +2235
    +2236        expressions = []
    +2237        field = None
     2238
    -2239        expressions = []
    -2240        field = None
    -2241
    -2242        if not self._match(TokenType.L_PAREN):
    -2243            self._retreat(index)
    -2244            return None
    -2245
    -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()))
    +2239        if not self._match(TokenType.L_PAREN):
    +2240            self._retreat(index)
    +2241            return None
    +2242
    +2243        if unpivot:
    +2244            expressions = self._parse_csv(self._parse_column)
    +2245        else:
    +2246            expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function()))
    +2247
    +2248        if not self._match(TokenType.FOR):
    +2249            self.raise_error("Expecting FOR")
     2250
    -2251        if not self._match(TokenType.FOR):
    -2252            self.raise_error("Expecting FOR")
    -2253
    -2254        value = self._parse_column()
    +2251        value = self._parse_column()
    +2252
    +2253        if not self._match(TokenType.IN):
    +2254            self.raise_error("Expecting IN")
     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)
    +2256        field = self._parse_in(value)
    +2257
    +2258        self._match_r_paren()
    +2259
    +2260        pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot)
    +2261
    +2262        if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False):
    +2263            pivot.set("alias", self._parse_table_alias())
     2264
    -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        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)
    +2265        return pivot
    +2266
    +2267    def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]:
    +2268        if not skip_where_token and not self._match(TokenType.WHERE):
    +2269            return None
    +2270
    +2271        return self.expression(
    +2272            exp.Where, comments=self._prev_comments, this=self._parse_conjunction()
    +2273        )
    +2274
    +2275    def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]:
    +2276        if not skip_group_by_token and not self._match(TokenType.GROUP_BY):
    +2277            return None
    +2278
    +2279        elements = defaultdict(list)
    +2280
    +2281        while True:
    +2282            expressions = self._parse_csv(self._parse_conjunction)
    +2283            if expressions:
    +2284                elements["expressions"].extend(expressions)
    +2285
    +2286            grouping_sets = self._parse_grouping_sets()
    +2287            if grouping_sets:
    +2288                elements["grouping_sets"].extend(grouping_sets)
    +2289
    +2290            rollup = None
    +2291            cube = None
     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))
    +2293            with_ = self._match(TokenType.WITH)
    +2294            if self._match(TokenType.ROLLUP):
    +2295                rollup = with_ or self._parse_wrapped_csv(self._parse_column)
    +2296                elements["rollup"].extend(ensure_list(rollup))
    +2297
    +2298            if self._match(TokenType.CUBE):
    +2299                cube = with_ or self._parse_wrapped_csv(self._parse_column)
    +2300                elements["cube"].extend(ensure_list(cube))
    +2301
    +2302            if not (expressions or grouping_sets or rollup or cube):
    +2303                break
     2304
    -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_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    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 self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first)
    -2372
    -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            )
    +2305        return self.expression(exp.Group, **elements)  # type: ignore
    +2306
    +2307    def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    +2308        if not self._match(TokenType.GROUPING_SETS):
    +2309            return None
    +2310
    +2311        return self._parse_wrapped_csv(self._parse_grouping_set)
    +2312
    +2313    def _parse_grouping_set(self) -> t.Optional[exp.Expression]:
    +2314        if self._match(TokenType.L_PAREN):
    +2315            grouping_set = self._parse_csv(self._parse_column)
    +2316            self._match_r_paren()
    +2317            return self.expression(exp.Tuple, expressions=grouping_set)
    +2318
    +2319        return self._parse_column()
    +2320
    +2321    def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]:
    +2322        if not skip_having_token and not self._match(TokenType.HAVING):
    +2323            return None
    +2324        return self.expression(exp.Having, this=self._parse_conjunction())
    +2325
    +2326    def _parse_qualify(self) -> t.Optional[exp.Expression]:
    +2327        if not self._match(TokenType.QUALIFY):
    +2328            return None
    +2329        return self.expression(exp.Qualify, this=self._parse_conjunction())
    +2330
    +2331    def _parse_order(
    +2332        self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False
    +2333    ) -> t.Optional[exp.Expression]:
    +2334        if not skip_order_token and not self._match(TokenType.ORDER_BY):
    +2335            return this
    +2336
    +2337        return self.expression(
    +2338            exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered)
    +2339        )
    +2340
    +2341    def _parse_sort(
    +2342        self, token_type: TokenType, exp_class: t.Type[exp.Expression]
    +2343    ) -> t.Optional[exp.Expression]:
    +2344        if not self._match(token_type):
    +2345            return None
    +2346        return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered))
    +2347
    +2348    def _parse_ordered(self) -> exp.Expression:
    +2349        this = self._parse_conjunction()
    +2350        self._match(TokenType.ASC)
    +2351        is_desc = self._match(TokenType.DESC)
    +2352        is_nulls_first = self._match(TokenType.NULLS_FIRST)
    +2353        is_nulls_last = self._match(TokenType.NULLS_LAST)
    +2354        desc = is_desc or False
    +2355        asc = not desc
    +2356        nulls_first = is_nulls_first or False
    +2357        explicitly_null_ordered = is_nulls_first or is_nulls_last
    +2358        if (
    +2359            not explicitly_null_ordered
    +2360            and (
    +2361                (asc and self.null_ordering == "nulls_are_small")
    +2362                or (desc and self.null_ordering != "nulls_are_small")
    +2363            )
    +2364            and self.null_ordering != "nulls_are_last"
    +2365        ):
    +2366            nulls_first = True
    +2367
    +2368        return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first)
    +2369
    +2370    def _parse_limit(
    +2371        self, this: t.Optional[exp.Expression] = None, top: bool = False
    +2372    ) -> t.Optional[exp.Expression]:
    +2373        if self._match(TokenType.TOP if top else TokenType.LIMIT):
    +2374            limit_paren = self._match(TokenType.L_PAREN)
    +2375            limit_exp = self.expression(
    +2376                exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term()
    +2377            )
    +2378
    +2379            if limit_paren:
    +2380                self._match_r_paren()
     2381
    -2382            if limit_paren:
    -2383                self._match_r_paren()
    -2384
    -2385            return limit_exp
    -2386
    -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        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        )
    +2382            return limit_exp
    +2383
    +2384        if self._match(TokenType.FETCH):
    +2385            direction = self._match_set((TokenType.FIRST, TokenType.NEXT))
    +2386            direction = self._prev.text if direction else "FIRST"
    +2387            count = self._parse_number()
    +2388            self._match_set((TokenType.ROW, TokenType.ROWS))
    +2389            self._match(TokenType.ONLY)
    +2390            return self.expression(exp.Fetch, direction=direction, count=count)
    +2391
    +2392        return this
    +2393
    +2394    def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]:
    +2395        if not self._match_set((TokenType.OFFSET, TokenType.COMMA)):
    +2396            return this
    +2397
    +2398        count = self._parse_number()
    +2399        self._match_set((TokenType.ROW, TokenType.ROWS))
    +2400        return self.expression(exp.Offset, this=this, expression=count)
    +2401
    +2402    def _parse_lock(self) -> t.Optional[exp.Expression]:
    +2403        if self._match_text_seq("FOR", "UPDATE"):
    +2404            return self.expression(exp.Lock, update=True)
    +2405        if self._match_text_seq("FOR", "SHARE"):
    +2406            return self.expression(exp.Lock, update=False)
    +2407
    +2408        return None
    +2409
    +2410    def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +2411        if not self._match_set(self.SET_OPERATIONS):
    +2412            return this
    +2413
    +2414        token_type = self._prev.token_type
    +2415
    +2416        if token_type == TokenType.UNION:
    +2417            expression = exp.Union
    +2418        elif token_type == TokenType.EXCEPT:
    +2419            expression = exp.Except
    +2420        else:
    +2421            expression = exp.Intersect
    +2422
    +2423        return self.expression(
    +2424            expression,
    +2425            this=this,
    +2426            distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL),
    +2427            expression=self._parse_set_operations(self._parse_select(nested=True)),
    +2428        )
    +2429
    +2430    def _parse_expression(self) -> t.Optional[exp.Expression]:
    +2431        return self._parse_alias(self._parse_conjunction())
     2432
    -2433    def _parse_expression(self) -> t.Optional[exp.Expression]:
    -2434        return self._parse_alias(self._parse_conjunction())
    +2433    def _parse_conjunction(self) -> t.Optional[exp.Expression]:
    +2434        return self._parse_tokens(self._parse_equality, self.CONJUNCTION)
     2435
    -2436    def _parse_conjunction(self) -> t.Optional[exp.Expression]:
    -2437        return self._parse_tokens(self._parse_equality, self.CONJUNCTION)
    +2436    def _parse_equality(self) -> t.Optional[exp.Expression]:
    +2437        return self._parse_tokens(self._parse_comparison, self.EQUALITY)
     2438
    -2439    def _parse_equality(self) -> t.Optional[exp.Expression]:
    -2440        return self._parse_tokens(self._parse_comparison, self.EQUALITY)
    +2439    def _parse_comparison(self) -> t.Optional[exp.Expression]:
    +2440        return self._parse_tokens(self._parse_range, self.COMPARISON)
     2441
    -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())
    +2442    def _parse_range(self) -> t.Optional[exp.Expression]:
    +2443        this = self._parse_bitwise()
    +2444        negate = self._match(TokenType.NOT)
    +2445
    +2446        if self._match_set(self.RANGE_PARSERS):
    +2447            this = self.RANGE_PARSERS[self._prev.token_type](self, this)
    +2448        elif self._match(TokenType.ISNULL):
    +2449            this = self.expression(exp.Is, this=this, expression=exp.Null())
    +2450
    +2451        # Postgres supports ISNULL and NOTNULL for conditions.
    +2452        # https://blog.andreiavram.ro/postgresql-null-composite-type/
    +2453        if self._match(TokenType.NOTNULL):
    +2454            this = self.expression(exp.Is, this=this, expression=exp.Null())
    +2455            this = self.expression(exp.Not, this=this)
    +2456
    +2457        if negate:
     2458            this = self.expression(exp.Not, this=this)
     2459
    -2460        if negate:
    -2461            this = self.expression(exp.Not, this=this)
    +2460        if self._match(TokenType.IS):
    +2461            this = self._parse_is(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_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())
    +2463        return this
    +2464
    +2465    def _parse_is(self, this: t.Optional[exp.Expression]) -> exp.Expression:
    +2466        negate = self._match(TokenType.NOT)
    +2467        if self._match(TokenType.DISTINCT_FROM):
    +2468            klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ
    +2469            return self.expression(klass, this=this, expression=self._parse_expression())
    +2470
    +2471        this = self.expression(
    +2472            exp.Is,
    +2473            this=this,
    +2474            expression=self._parse_null() or self._parse_boolean(),
    +2475        )
    +2476        return self.expression(exp.Not, this=this) if negate else this
    +2477
    +2478    def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression:
    +2479        unnest = self._parse_unnest()
    +2480        if unnest:
    +2481            this = self.expression(exp.In, this=this, unnest=unnest)
    +2482        elif self._match(TokenType.L_PAREN):
    +2483            expressions = self._parse_csv(self._parse_select_or_expression)
    +2484
    +2485            if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable):
    +2486                this = self.expression(exp.In, this=this, query=expressions[0])
    +2487            else:
    +2488                this = self.expression(exp.In, this=this, expressions=expressions)
    +2489
    +2490            self._match_r_paren()
    +2491        else:
    +2492            this = self.expression(exp.In, this=this, field=self._parse_field())
    +2493
    +2494        return this
    +2495
    +2496    def _parse_between(self, this: exp.Expression) -> exp.Expression:
    +2497        low = self._parse_bitwise()
    +2498        self._match(TokenType.AND)
    +2499        high = self._parse_bitwise()
    +2500        return self.expression(exp.Between, this=this, low=low, high=high)
    +2501
    +2502    def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +2503        if not self._match(TokenType.ESCAPE):
    +2504            return this
    +2505        return self.expression(exp.Escape, this=this, expression=self._parse_string())
    +2506
    +2507    def _parse_bitwise(self) -> t.Optional[exp.Expression]:
    +2508        this = self._parse_term()
     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
    +2510        while True:
    +2511            if self._match_set(self.BITWISE):
    +2512                this = self.expression(
    +2513                    self.BITWISE[self._prev.token_type],
    +2514                    this=this,
    +2515                    expression=self._parse_term(),
    +2516                )
    +2517            elif self._match_pair(TokenType.LT, TokenType.LT):
    +2518                this = self.expression(
    +2519                    exp.BitwiseLeftShift, this=this, expression=self._parse_term()
    +2520                )
    +2521            elif self._match_pair(TokenType.GT, TokenType.GT):
    +2522                this = self.expression(
    +2523                    exp.BitwiseRightShift, this=this, expression=self._parse_term()
    +2524                )
    +2525            else:
    +2526                break
    +2527
    +2528        return this
    +2529
    +2530    def _parse_term(self) -> t.Optional[exp.Expression]:
    +2531        return self._parse_tokens(self._parse_factor, self.TERM)
     2532
    -2533    def _parse_term(self) -> t.Optional[exp.Expression]:
    -2534        return self._parse_tokens(self._parse_factor, self.TERM)
    +2533    def _parse_factor(self) -> t.Optional[exp.Expression]:
    +2534        return self._parse_tokens(self._parse_unary, self.FACTOR)
     2535
    -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        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
    +2536    def _parse_unary(self) -> t.Optional[exp.Expression]:
    +2537        if self._match_set(self.UNARY_PARSERS):
    +2538            return self.UNARY_PARSERS[self._prev.token_type](self)
    +2539        return self._parse_at_time_zone(self._parse_type())
    +2540
    +2541    def _parse_type(self) -> t.Optional[exp.Expression]:
    +2542        if self._match(TokenType.INTERVAL):
    +2543            return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_field())
    +2544
    +2545        index = self._index
    +2546        type_token = self._parse_types(check_func=True)
    +2547        this = self._parse_column()
    +2548
    +2549        if type_token:
    +2550            if isinstance(this, exp.Literal):
    +2551                return self.expression(exp.Cast, this=this, to=type_token)
    +2552            if not type_token.args.get("expressions"):
    +2553                self._retreat(index)
    +2554                return self._parse_column()
    +2555            return type_token
    +2556
    +2557        return this
    +2558
    +2559    def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]:
    +2560        index = self._index
     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", ".")
    +2562        prefix = self._match_text_seq("SYSUDTLIB", ".")
    +2563
    +2564        if not self._match_set(self.TYPE_TOKENS):
    +2565            return None
     2566
    -2567        if not self._match_set(self.TYPE_TOKENS):
    -2568            return None
    -2569
    -2570        type_token = self._prev.token_type
    +2567        type_token = self._prev.token_type
    +2568
    +2569        if type_token == TokenType.PSEUDO_TYPE:
    +2570            return self.expression(exp.PseudoType, this=self._prev.text)
     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
    +2572        nested = type_token in self.NESTED_TYPE_TOKENS
    +2573        is_struct = type_token == TokenType.STRUCT
    +2574        expressions = None
    +2575        maybe_func = False
    +2576
    +2577        if self._match(TokenType.L_PAREN):
    +2578            if is_struct:
    +2579                expressions = self._parse_csv(self._parse_struct_kwargs)
    +2580            elif nested:
    +2581                expressions = self._parse_csv(self._parse_types)
    +2582            else:
    +2583                expressions = self._parse_csv(self._parse_conjunction)
    +2584
    +2585            if not expressions:
    +2586                self._retreat(index)
    +2587                return None
    +2588
    +2589            self._match_r_paren()
    +2590            maybe_func = True
     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)
    +2592        if not nested and self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET):
    +2593            this = exp.DataType(
    +2594                this=exp.DataType.Type.ARRAY,
    +2595                expressions=[exp.DataType.build(type_token.value, expressions=expressions)],
    +2596                nested=True,
    +2597            )
    +2598
    +2599            while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET):
    +2600                this = exp.DataType(
    +2601                    this=exp.DataType.Type.ARRAY,
    +2602                    expressions=[this],
    +2603                    nested=True,
    +2604                )
    +2605
    +2606            return this
    +2607
    +2608        if self._match(TokenType.L_BRACKET):
    +2609            self._retreat(index)
    +2610            return None
    +2611
    +2612        values: t.Optional[t.List[t.Optional[exp.Expression]]] = None
    +2613        if nested and self._match(TokenType.LT):
    +2614            if is_struct:
    +2615                expressions = self._parse_csv(self._parse_struct_kwargs)
    +2616            else:
    +2617                expressions = self._parse_csv(self._parse_types)
    +2618
    +2619            if not self._match(TokenType.GT):
    +2620                self.raise_error("Expecting >")
     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 maybe_func and check_func:
    -2656            index2 = self._index
    -2657            peek = self._parse_string()
    -2658
    -2659            if not peek:
    -2660                self._retreat(index)
    -2661                return None
    -2662
    -2663            self._retreat(index2)
    +2622            if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)):
    +2623                values = self._parse_csv(self._parse_conjunction)
    +2624                self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN))
    +2625
    +2626        value: t.Optional[exp.Expression] = None
    +2627        if type_token in self.TIMESTAMPS:
    +2628            if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ:
    +2629                value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions)
    +2630            elif (
    +2631                self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ
    +2632            ):
    +2633                value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions)
    +2634            elif self._match(TokenType.WITHOUT_TIME_ZONE):
    +2635                if type_token == TokenType.TIME:
    +2636                    value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions)
    +2637                else:
    +2638                    value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions)
    +2639
    +2640            maybe_func = maybe_func and value is None
    +2641
    +2642            if value is None:
    +2643                value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions)
    +2644        elif type_token == TokenType.INTERVAL:
    +2645            unit = self._parse_var()
    +2646
    +2647            if not unit:
    +2648                value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL)
    +2649            else:
    +2650                value = self.expression(exp.Interval, unit=unit)
    +2651
    +2652        if maybe_func and check_func:
    +2653            index2 = self._index
    +2654            peek = self._parse_string()
    +2655
    +2656            if not peek:
    +2657                self._retreat(index)
    +2658                return None
    +2659
    +2660            self._retreat(index2)
    +2661
    +2662        if value:
    +2663            return value
     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    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 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        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
    +2665        return exp.DataType(
    +2666            this=exp.DataType.Type[type_token.value.upper()],
    +2667            expressions=expressions,
    +2668            nested=nested,
    +2669            values=values,
    +2670            prefix=prefix,
    +2671        )
    +2672
    +2673    def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]:
    +2674        if self._curr and self._curr.token_type in self.TYPE_TOKENS:
    +2675            return self._parse_types()
    +2676
    +2677        this = self._parse_id_var()
    +2678        self._match(TokenType.COLON)
    +2679        data_type = self._parse_types()
    +2680
    +2681        if not data_type:
    +2682            return None
    +2683        return self.expression(exp.StructKwarg, this=this, expression=data_type)
    +2684
    +2685    def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +2686        if not self._match(TokenType.AT_TIME_ZONE):
    +2687            return this
    +2688        return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary())
    +2689
    +2690    def _parse_column(self) -> t.Optional[exp.Expression]:
    +2691        this = self._parse_field()
    +2692        if isinstance(this, exp.Identifier):
    +2693            this = self.expression(exp.Column, this=this)
    +2694        elif not this:
    +2695            return self._parse_bracket(this)
    +2696        this = self._parse_bracket(this)
    +2697
    +2698        while self._match_set(self.COLUMN_OPERATORS):
    +2699            op_token = self._prev.token_type
    +2700            op = self.COLUMN_OPERATORS.get(op_token)
    +2701
    +2702            if op_token == TokenType.DCOLON:
    +2703                field = self._parse_types()
    +2704                if not field:
    +2705                    self.raise_error("Expected type")
    +2706            elif op:
    +2707                self._advance()
    +2708                value = self._prev.text
    +2709                field = (
    +2710                    exp.Literal.number(value)
    +2711                    if self._prev.token_type == TokenType.NUMBER
    +2712                    else exp.Literal.string(value)
    +2713                )
    +2714            else:
    +2715                field = self._parse_star() or self._parse_function() or self._parse_id_var()
    +2716
    +2717            if isinstance(field, exp.Func):
    +2718                # bigquery allows function calls like x.y.count(...)
    +2719                # SAFE.SUBSTR(...)
    +2720                # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules
    +2721                this = self._replace_columns_with_dots(this)
    +2722
    +2723            if op:
    +2724                this = op(self, this, field)
    +2725            elif isinstance(this, exp.Column) and not this.args.get("catalog"):
    +2726                this = self.expression(
    +2727                    exp.Column,
    +2728                    this=field,
    +2729                    table=this.this,
    +2730                    db=this.args.get("table"),
    +2731                    catalog=this.args.get("db"),
    +2732                )
    +2733            else:
    +2734                this = self.expression(exp.Dot, this=this, expression=field)
    +2735            this = self._parse_bracket(this)
    +2736
    +2737        return this
    +2738
    +2739    def _parse_primary(self) -> t.Optional[exp.Expression]:
    +2740        if self._match_set(self.PRIMARY_PARSERS):
    +2741            token_type = self._prev.token_type
    +2742            primary = self.PRIMARY_PARSERS[token_type](self, self._prev)
    +2743
    +2744            if token_type == TokenType.STRING:
    +2745                expressions = [primary]
    +2746                while self._match(TokenType.STRING):
    +2747                    expressions.append(exp.Literal.string(self._prev.text))
    +2748                if len(expressions) > 1:
    +2749                    return self.expression(exp.Concat, expressions=expressions)
    +2750            return primary
    +2751
    +2752        if self._match_pair(TokenType.DOT, TokenType.NUMBER):
    +2753            return exp.Literal.number(f"0.{self._prev.text}")
     2754
    -2755        if self._match_pair(TokenType.DOT, TokenType.NUMBER):
    -2756            return exp.Literal.number(f"0.{self._prev.text}")
    -2757
    -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            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)
    +2755        if self._match(TokenType.L_PAREN):
    +2756            comments = self._prev_comments
    +2757            query = self._parse_select()
    +2758
    +2759            if query:
    +2760                expressions = [query]
    +2761            else:
    +2762                expressions = self._parse_csv(
    +2763                    lambda: self._parse_alias(self._parse_conjunction(), explicit=True)
    +2764                )
    +2765
    +2766            this = seq_get(expressions, 0)
    +2767            self._parse_query_modifiers(this)
    +2768            self._match_r_paren()
    +2769
    +2770            if isinstance(this, exp.Subqueryable):
    +2771                this = self._parse_set_operations(
    +2772                    self._parse_subquery(this=this, parse_alias=False)
    +2773                )
    +2774            elif len(expressions) > 1:
    +2775                this = self.expression(exp.Tuple, expressions=expressions)
    +2776            else:
    +2777                this = self.expression(exp.Paren, this=this)
    +2778
    +2779            if this and comments:
    +2780                this.comments = comments
     2781
    -2782            if this and comments:
    -2783                this.comments = comments
    -2784
    -2785            return this
    -2786
    -2787        return None
    +2782            return this
    +2783
    +2784        return None
    +2785
    +2786    def _parse_field(self, any_token: bool = False) -> t.Optional[exp.Expression]:
    +2787        return self._parse_primary() or self._parse_function() or self._parse_id_var(any_token)
     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
    +2789    def _parse_function(
    +2790        self, functions: t.Optional[t.Dict[str, t.Callable]] = None
    +2791    ) -> t.Optional[exp.Expression]:
    +2792        if not self._curr:
    +2793            return None
    +2794
    +2795        token_type = self._curr.token_type
    +2796
    +2797        if self._match_set(self.NO_PAREN_FUNCTION_PARSERS):
    +2798            return self.NO_PAREN_FUNCTION_PARSERS[token_type](self)
     2799
    -2800        if self._match_set(self.NO_PAREN_FUNCTION_PARSERS):
    -2801            return self.NO_PAREN_FUNCTION_PARSERS[token_type](self)
    -2802
    -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
    +2800        if not self._next or self._next.token_type != TokenType.L_PAREN:
    +2801            if token_type in self.NO_PAREN_FUNCTIONS:
    +2802                self._advance()
    +2803                return self.expression(self.NO_PAREN_FUNCTIONS[token_type])
    +2804
    +2805            return None
    +2806
    +2807        if token_type not in self.FUNC_TOKENS:
     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
    +2810        this = self._curr.text
    +2811        upper = this.upper()
    +2812        self._advance(2)
    +2813
    +2814        parser = self.FUNCTION_PARSERS.get(upper)
    +2815
    +2816        if parser:
    +2817            this = parser(self)
    +2818        else:
    +2819            subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type)
    +2820
    +2821            if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH):
    +2822                this = self.expression(subquery_predicate, this=self._parse_select())
    +2823                self._match_r_paren()
    +2824                return this
    +2825
    +2826            if functions is None:
    +2827                functions = self.FUNCTIONS
     2828
    -2829            if functions is None:
    -2830                functions = self.FUNCTIONS
    +2829            function = functions.get(upper)
    +2830            args = self._parse_csv(self._parse_lambda)
     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)
    +2832            if function:
    +2833                # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the
    +2834                # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists.
    +2835                if count_params(function) == 2:
    +2836                    params = None
    +2837                    if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN):
    +2838                        params = self._parse_csv(self._parse_lambda)
    +2839
    +2840                    this = function(args, params)
    +2841                else:
    +2842                    this = function(args)
    +2843
    +2844                self.validate_expression(this, args)
    +2845            else:
    +2846                this = self.expression(exp.Anonymous, this=this, expressions=args)
    +2847
    +2848        self._match_r_paren(this)
    +2849        return self._parse_window(this)
     2850
    -2851        self._match_r_paren(this)
    -2852        return self._parse_window(this)
    +2851    def _parse_function_parameter(self) -> t.Optional[exp.Expression]:
    +2852        return self._parse_column_def(self._parse_id_var())
     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()
    +2854    def _parse_user_defined_function(
    +2855        self, kind: t.Optional[TokenType] = None
    +2856    ) -> t.Optional[exp.Expression]:
    +2857        this = self._parse_id_var()
    +2858
    +2859        while self._match(TokenType.DOT):
    +2860            this = self.expression(exp.Dot, this=this, expression=self._parse_id_var())
     2861
    -2862        while self._match(TokenType.DOT):
    -2863            this = self.expression(exp.Dot, this=this, expression=self._parse_id_var())
    +2862        if not self._match(TokenType.L_PAREN):
    +2863            return this
     2864
    -2865        if not self._match(TokenType.L_PAREN):
    -2866            return this
    -2867
    -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        return self.expression(exp.Identifier, this=token.text)
    +2865        expressions = self._parse_csv(self._parse_function_parameter)
    +2866        self._match_r_paren()
    +2867        return self.expression(
    +2868            exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True
    +2869        )
    +2870
    +2871    def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]:
    +2872        literal = self._parse_primary()
    +2873        if literal:
    +2874            return self.expression(exp.Introducer, this=token.text, expression=literal)
    +2875
    +2876        return self.expression(exp.Identifier, this=token.text)
    +2877
    +2878    def _parse_national(self, token: Token) -> exp.Expression:
    +2879        return self.expression(exp.National, this=exp.Literal.string(token.text))
     2880
    -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)
    +2881    def _parse_session_parameter(self) -> exp.Expression:
    +2882        kind = None
    +2883        this = self._parse_id_var() or self._parse_primary()
    +2884
    +2885        if this and self._match(TokenType.DOT):
    +2886            kind = this.name
    +2887            this = self._parse_var() or self._parse_primary()
    +2888
    +2889        return self.expression(exp.SessionParameter, this=this, kind=kind)
    +2890
    +2891    def _parse_lambda(self) -> t.Optional[exp.Expression]:
    +2892        index = self._index
     2893
    -2894    def _parse_lambda(self) -> t.Optional[exp.Expression]:
    -2895        index = self._index
    +2894        if self._match(TokenType.L_PAREN):
    +2895            expressions = self._parse_csv(self._parse_id_var)
     2896
    -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()]
    +2897            if not self._match(TokenType.R_PAREN):
    +2898                self._retreat(index)
    +2899        else:
    +2900            expressions = [self._parse_id_var()]
    +2901
    +2902        if self._match_set(self.LAMBDAS):
    +2903            return self.LAMBDAS[self._prev.token_type](self, expressions)
     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        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    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        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)
    +2905        self._retreat(index)
    +2906
    +2907        this: t.Optional[exp.Expression]
    +2908
    +2909        if self._match(TokenType.DISTINCT):
    +2910            this = self.expression(
    +2911                exp.Distinct, expressions=self._parse_csv(self._parse_conjunction)
    +2912            )
    +2913        else:
    +2914            this = self._parse_select_or_expression()
    +2915
    +2916        if self._match(TokenType.IGNORE_NULLS):
    +2917            this = self.expression(exp.IgnoreNulls, this=this)
    +2918        else:
    +2919            self._match(TokenType.RESPECT_NULLS)
    +2920
    +2921        return self._parse_limit(self._parse_order(this))
    +2922
    +2923    def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]:
    +2924        index = self._index
    +2925        if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT):
    +2926            self._retreat(index)
    +2927            return this
    +2928
    +2929        args = self._parse_csv(
    +2930            lambda: self._parse_constraint()
    +2931            or self._parse_column_def(self._parse_field(any_token=True))
    +2932        )
    +2933        self._match_r_paren()
    +2934        return self.expression(exp.Schema, this=this, expressions=args)
    +2935
    +2936    def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +2937        kind = self._parse_types()
     2938
    -2939    def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    -2940        kind = self._parse_types()
    +2939        if self._match_text_seq("FOR", "ORDINALITY"):
    +2940            return self.expression(exp.ColumnDef, this=this, ordinality=True)
     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)
    +2942        constraints = []
    +2943        while True:
    +2944            constraint = self._parse_column_constraint()
    +2945            if not constraint:
    +2946                break
    +2947            constraints.append(constraint)
    +2948
    +2949        if not kind and not constraints:
    +2950            return this
     2951
    -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        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()
    +2952        return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints)
    +2953
    +2954    def _parse_auto_increment(self) -> exp.Expression:
    +2955        start = None
    +2956        increment = None
    +2957
    +2958        if self._match(TokenType.L_PAREN, advance=False):
    +2959            args = self._parse_wrapped_csv(self._parse_bitwise)
    +2960            start = seq_get(args, 0)
    +2961            increment = seq_get(args, 1)
    +2962        elif self._match_text_seq("START"):
    +2963            start = self._parse_bitwise()
    +2964            self._match_text_seq("INCREMENT")
    +2965            increment = self._parse_bitwise()
    +2966
    +2967        if start and increment:
    +2968            return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment)
     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        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
    +2970        return exp.AutoIncrementColumnConstraint()
    +2971
    +2972    def _parse_compress(self) -> exp.Expression:
    +2973        if self._match(TokenType.L_PAREN, advance=False):
    +2974            return self.expression(
    +2975                exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise)
    +2976            )
    +2977
    +2978        return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise())
    +2979
    +2980    def _parse_generated_as_identity(self) -> exp.Expression:
    +2981        if self._match(TokenType.BY_DEFAULT):
    +2982            this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False)
    +2983        else:
    +2984            self._match_text_seq("ALWAYS")
    +2985            this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True)
    +2986
    +2987        self._match_text_seq("AS", "IDENTITY")
    +2988        if self._match(TokenType.L_PAREN):
    +2989            if self._match_text_seq("START", "WITH"):
    +2990                this.set("start", self._parse_bitwise())
    +2991            if self._match_text_seq("INCREMENT", "BY"):
    +2992                this.set("increment", self._parse_bitwise())
    +2993            if self._match_text_seq("MINVALUE"):
    +2994                this.set("minvalue", self._parse_bitwise())
    +2995            if self._match_text_seq("MAXVALUE"):
    +2996                this.set("maxvalue", self._parse_bitwise())
    +2997
    +2998            if self._match_text_seq("CYCLE"):
    +2999                this.set("cycle", True)
    +3000            elif self._match_text_seq("NO", "CYCLE"):
    +3001                this.set("cycle", False)
    +3002
    +3003            self._match_r_paren()
    +3004
    +3005        return this
    +3006
    +3007    def _parse_inline(self) -> t.Optional[exp.Expression]:
    +3008        self._match_text_seq("LENGTH")
    +3009        return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise())
    +3010
    +3011    def _parse_not_constraint(self) -> t.Optional[exp.Expression]:
    +3012        if self._match_text_seq("NULL"):
    +3013            return self.expression(exp.NotNullColumnConstraint)
    +3014        if self._match_text_seq("CASESPECIFIC"):
    +3015            return self.expression(exp.CaseSpecificColumnConstraint, not_=True)
    +3016        return None
    +3017
    +3018    def _parse_column_constraint(self) -> t.Optional[exp.Expression]:
    +3019        this = self._parse_references()
    +3020        if this:
    +3021            return this
    +3022
    +3023        if self._match(TokenType.CONSTRAINT):
    +3024            this = self._parse_id_var()
     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        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)
    +3026        if self._match_texts(self.CONSTRAINT_PARSERS):
    +3027            return self.expression(
    +3028                exp.ColumnConstraint,
    +3029                this=this,
    +3030                kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self),
    +3031            )
    +3032
    +3033        return this
    +3034
    +3035    def _parse_constraint(self) -> t.Optional[exp.Expression]:
    +3036        if not self._match(TokenType.CONSTRAINT):
    +3037            return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS)
    +3038
    +3039        this = self._parse_id_var()
    +3040        expressions = []
     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        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            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                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
    +3042        while True:
    +3043            constraint = self._parse_unnamed_constraint() or self._parse_function()
    +3044            if not constraint:
    +3045                break
    +3046            expressions.append(constraint)
    +3047
    +3048        return self.expression(exp.Constraint, this=this, expressions=expressions)
    +3049
    +3050    def _parse_unnamed_constraint(
    +3051        self, constraints: t.Optional[t.Collection[str]] = None
    +3052    ) -> t.Optional[exp.Expression]:
    +3053        if not self._match_texts(constraints or self.CONSTRAINT_PARSERS):
    +3054            return None
    +3055
    +3056        constraint = self._prev.text.upper()
    +3057        if constraint not in self.CONSTRAINT_PARSERS:
    +3058            self.raise_error(f"No parser found for schema constraint {constraint}.")
    +3059
    +3060        return self.CONSTRAINT_PARSERS[constraint](self)
    +3061
    +3062    def _parse_unique(self) -> exp.Expression:
    +3063        if not self._match(TokenType.L_PAREN, advance=False):
    +3064            return self.expression(exp.UniqueColumnConstraint)
    +3065        return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars())
    +3066
    +3067    def _parse_key_constraint_options(self) -> t.List[str]:
    +3068        options = []
    +3069        while True:
    +3070            if not self._curr:
    +3071                break
    +3072
    +3073            if self._match(TokenType.ON):
    +3074                action = None
    +3075                on = self._advance_any() and self._prev.text
    +3076
    +3077                if self._match(TokenType.NO_ACTION):
    +3078                    action = "NO ACTION"
    +3079                elif self._match(TokenType.CASCADE):
    +3080                    action = "CASCADE"
    +3081                elif self._match_pair(TokenType.SET, TokenType.NULL):
    +3082                    action = "SET NULL"
    +3083                elif self._match_pair(TokenType.SET, TokenType.DEFAULT):
    +3084                    action = "SET DEFAULT"
    +3085                else:
    +3086                    self.raise_error("Invalid key constraint")
    +3087
    +3088                options.append(f"ON {on} {action}")
    +3089            elif self._match_text_seq("NOT", "ENFORCED"):
    +3090                options.append("NOT ENFORCED")
    +3091            elif self._match_text_seq("DEFERRABLE"):
    +3092                options.append("DEFERRABLE")
    +3093            elif self._match_text_seq("INITIALLY", "DEFERRED"):
    +3094                options.append("INITIALLY DEFERRED")
    +3095            elif self._match_text_seq("NORELY"):
    +3096                options.append("NORELY")
    +3097            elif self._match_text_seq("MATCH", "FULL"):
    +3098                options.append("MATCH FULL")
    +3099            else:
    +3100                break
    +3101
    +3102        return options
    +3103
    +3104    def _parse_references(self) -> t.Optional[exp.Expression]:
    +3105        if not self._match(TokenType.REFERENCES):
    +3106            return None
    +3107
    +3108        expressions = None
    +3109        this = self._parse_id_var()
     3110
    -3111        expressions = None
    -3112        this = self._parse_id_var()
    +3111        if self._match(TokenType.L_PAREN, advance=False):
    +3112            expressions = self._parse_wrapped_id_vars()
     3113
    -3114        if self._match(TokenType.L_PAREN, advance=False):
    -3115            expressions = self._parse_wrapped_id_vars()
    +3114        options = self._parse_key_constraint_options()
    +3115        return self.expression(exp.Reference, this=this, expressions=expressions, options=options)
     3116
    -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        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        )
    +3117    def _parse_foreign_key(self) -> exp.Expression:
    +3118        expressions = self._parse_wrapped_id_vars()
    +3119        reference = self._parse_references()
    +3120        options = {}
    +3121
    +3122        while self._match(TokenType.ON):
    +3123            if not self._match_set((TokenType.DELETE, TokenType.UPDATE)):
    +3124                self.raise_error("Expected DELETE or UPDATE")
    +3125
    +3126            kind = self._prev.text.lower()
    +3127
    +3128            if self._match(TokenType.NO_ACTION):
    +3129                action = "NO ACTION"
    +3130            elif self._match(TokenType.SET):
    +3131                self._match_set((TokenType.NULL, TokenType.DEFAULT))
    +3132                action = "SET " + self._prev.text.upper()
    +3133            else:
    +3134                self._advance()
    +3135                action = self._prev.text.upper()
    +3136
    +3137            options[kind] = action
    +3138
    +3139        return self.expression(
    +3140            exp.ForeignKey, expressions=expressions, reference=reference, **options  # type: ignore
    +3141        )
    +3142
    +3143    def _parse_primary_key(self) -> exp.Expression:
    +3144        desc = (
    +3145            self._match_set((TokenType.ASC, TokenType.DESC))
    +3146            and self._prev.token_type == TokenType.DESC
    +3147        )
    +3148
    +3149        if not self._match(TokenType.L_PAREN, advance=False):
    +3150            return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc)
     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_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
    +3152        expressions = self._parse_wrapped_id_vars()
    +3153        options = self._parse_key_constraint_options()
    +3154        return self.expression(exp.PrimaryKey, expressions=expressions, options=options)
    +3155
    +3156    def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +3157        if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)):
    +3158            return this
    +3159
    +3160        bracket_kind = self._prev.token_type
    +3161        expressions: t.List[t.Optional[exp.Expression]]
     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 }")
    +3163        if self._match(TokenType.COLON):
    +3164            expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())]
    +3165        else:
    +3166            expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction()))
    +3167
    +3168        # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs
    +3169        if bracket_kind == TokenType.L_BRACE:
    +3170            this = self.expression(exp.Struct, expressions=expressions)
    +3171        elif not this or this.name.upper() == "ARRAY":
    +3172            this = self.expression(exp.Array, expressions=expressions)
    +3173        else:
    +3174            expressions = apply_index_offset(expressions, -self.index_offset)
    +3175            this = self.expression(exp.Bracket, this=this, expressions=expressions)
    +3176
    +3177        if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET:
    +3178            self.raise_error("Expected ]")
    +3179        elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE:
    +3180            self.raise_error("Expected }")
    +3181
    +3182        this.comments = self._prev_comments
    +3183        return self._parse_bracket(this)
     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))
    +3185    def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]:
    +3186        if self._match(TokenType.COLON):
    +3187            return self.expression(exp.Slice, this=this, expression=self._parse_conjunction())
    +3188        return this
    +3189
    +3190    def _parse_case(self) -> t.Optional[exp.Expression]:
    +3191        ifs = []
    +3192        default = None
    +3193
    +3194        expression = self._parse_conjunction()
    +3195
    +3196        while self._match(TokenType.WHEN):
    +3197            this = self._parse_conjunction()
    +3198            self._match(TokenType.THEN)
    +3199            then = self._parse_conjunction()
    +3200            ifs.append(self.expression(exp.If, this=this, true=then))
    +3201
    +3202        if self._match(TokenType.ELSE):
    +3203            default = self._parse_conjunction()
     3204
    -3205        if self._match(TokenType.ELSE):
    -3206            default = self._parse_conjunction()
    +3205        if not self._match(TokenType.END):
    +3206            self.raise_error("Expected END after CASE", self._prev)
     3207
    -3208        if not self._match(TokenType.END):
    -3209            self.raise_error("Expected END after CASE", self._prev)
    -3210
    -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        return self._parse_window(this)
    +3208        return self._parse_window(
    +3209            self.expression(exp.Case, this=expression, ifs=ifs, default=default)
    +3210        )
    +3211
    +3212    def _parse_if(self) -> t.Optional[exp.Expression]:
    +3213        if self._match(TokenType.L_PAREN):
    +3214            args = self._parse_csv(self._parse_conjunction)
    +3215            this = exp.If.from_arg_list(args)
    +3216            self.validate_expression(this, args)
    +3217            self._match_r_paren()
    +3218        else:
    +3219            condition = self._parse_conjunction()
    +3220            self._match(TokenType.THEN)
    +3221            true = self._parse_conjunction()
    +3222            false = self._parse_conjunction() if self._match(TokenType.ELSE) else None
    +3223            self._match(TokenType.END)
    +3224            this = self.expression(exp.If, this=condition, true=true, false=false)
    +3225
    +3226        return self._parse_window(this)
    +3227
    +3228    def _parse_extract(self) -> exp.Expression:
    +3229        this = self._parse_function() or self._parse_var() or self._parse_type()
     3230
    -3231    def _parse_extract(self) -> exp.Expression:
    -3232        this = self._parse_function() or self._parse_var() or self._parse_type()
    +3231        if self._match(TokenType.FROM):
    +3232            return self.expression(exp.Extract, this=this, expression=self._parse_bitwise())
     3233
    -3234        if self._match(TokenType.FROM):
    -3235            return self.expression(exp.Extract, this=this, expression=self._parse_bitwise())
    +3234        if not self._match(TokenType.COMMA):
    +3235            self.raise_error("Expected FROM or comma after EXTRACT", self._prev)
     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())
    +3237        return self.expression(exp.Extract, this=this, expression=self._parse_bitwise())
    +3238
    +3239    def _parse_cast(self, strict: bool) -> exp.Expression:
    +3240        this = self._parse_conjunction()
     3241
    -3242    def _parse_cast(self, strict: bool) -> exp.Expression:
    -3243        this = self._parse_conjunction()
    +3242        if not self._match(TokenType.ALIAS):
    +3243            self.raise_error("Expected AS after CAST")
     3244
    -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)
    +3245        to = self._parse_types()
    +3246
    +3247        if not to:
    +3248            self.raise_error("Expected TYPE after CAST")
    +3249        elif to.this == exp.DataType.Type.CHAR:
    +3250            if self._match(TokenType.CHARACTER_SET):
    +3251                to = self.expression(exp.CharacterSet, this=self._parse_var_or_string())
    +3252
    +3253        return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
    +3254
    +3255    def _parse_string_agg(self) -> exp.Expression:
    +3256        expression: t.Optional[exp.Expression]
     3257
    -3258    def _parse_string_agg(self) -> exp.Expression:
    -3259        expression: t.Optional[exp.Expression]
    -3260
    -3261        if self._match(TokenType.DISTINCT):
    +3258        if self._match(TokenType.DISTINCT):
    +3259            args = self._parse_csv(self._parse_conjunction)
    +3260            expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)])
    +3261        else:
     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        # 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    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        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        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    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        # 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        # 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 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_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_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    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            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    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    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    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    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    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        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 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        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    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        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 _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        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
    +3263            expression = seq_get(args, 0)
    +3264
    +3265        index = self._index
    +3266        if not self._match(TokenType.R_PAREN):
    +3267            # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]])
    +3268            order = self._parse_order(this=expression)
    +3269            return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1))
    +3270
    +3271        # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]).
    +3272        # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that
    +3273        # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them.
    +3274        if not self._match(TokenType.WITHIN_GROUP):
    +3275            self._retreat(index)
    +3276            this = exp.GroupConcat.from_arg_list(args)
    +3277            self.validate_expression(this, args)
    +3278            return this
    +3279
    +3280        self._match_l_paren()  # The corresponding match_r_paren will be called in parse_function (caller)
    +3281        order = self._parse_order(this=expression)
    +3282        return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1))
    +3283
    +3284    def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]:
    +3285        to: t.Optional[exp.Expression]
    +3286        this = self._parse_bitwise()
    +3287
    +3288        if self._match(TokenType.USING):
    +3289            to = self.expression(exp.CharacterSet, this=self._parse_var())
    +3290        elif self._match(TokenType.COMMA):
    +3291            to = self._parse_bitwise()
    +3292        else:
    +3293            to = None
    +3294
    +3295        # Swap the argument order if needed to produce the correct AST
    +3296        if self.CONVERT_TYPE_FIRST:
    +3297            this, to = to, this
    +3298
    +3299        return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
    +3300
    +3301    def _parse_position(self, haystack_first: bool = False) -> exp.Expression:
    +3302        args = self._parse_csv(self._parse_bitwise)
    +3303
    +3304        if self._match(TokenType.IN):
    +3305            return self.expression(
    +3306                exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0)
    +3307            )
    +3308
    +3309        if haystack_first:
    +3310            haystack = seq_get(args, 0)
    +3311            needle = seq_get(args, 1)
    +3312        else:
    +3313            needle = seq_get(args, 0)
    +3314            haystack = seq_get(args, 1)
    +3315
    +3316        this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2))
    +3317
    +3318        self.validate_expression(this, args)
    +3319
    +3320        return this
    +3321
    +3322    def _parse_join_hint(self, func_name: str) -> exp.Expression:
    +3323        args = self._parse_csv(self._parse_table)
    +3324        return exp.JoinHint(this=func_name.upper(), expressions=args)
    +3325
    +3326    def _parse_substring(self) -> exp.Expression:
    +3327        # Postgres supports the form: substring(string [from int] [for int])
    +3328        # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6
    +3329
    +3330        args = self._parse_csv(self._parse_bitwise)
    +3331
    +3332        if self._match(TokenType.FROM):
    +3333            args.append(self._parse_bitwise())
    +3334            if self._match(TokenType.FOR):
    +3335                args.append(self._parse_bitwise())
    +3336
    +3337        this = exp.Substring.from_arg_list(args)
    +3338        self.validate_expression(this, args)
    +3339
    +3340        return this
    +3341
    +3342    def _parse_trim(self) -> exp.Expression:
    +3343        # https://www.w3resource.com/sql/character-functions/trim.php
    +3344        # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html
    +3345
    +3346        position = None
    +3347        collation = None
    +3348
    +3349        if self._match_set(self.TRIM_TYPES):
    +3350            position = self._prev.text.upper()
    +3351
    +3352        expression = self._parse_term()
    +3353        if self._match_set((TokenType.FROM, TokenType.COMMA)):
    +3354            this = self._parse_term()
    +3355        else:
    +3356            this = expression
    +3357            expression = None
    +3358
    +3359        if self._match(TokenType.COLLATE):
    +3360            collation = self._parse_term()
    +3361
    +3362        return self.expression(
    +3363            exp.Trim,
    +3364            this=this,
    +3365            position=position,
    +3366            expression=expression,
    +3367            collation=collation,
    +3368        )
    +3369
    +3370    def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    +3371        return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window)
    +3372
    +3373    def _parse_named_window(self) -> t.Optional[exp.Expression]:
    +3374        return self._parse_window(self._parse_id_var(), alias=True)
    +3375
    +3376    def _parse_window(
    +3377        self, this: t.Optional[exp.Expression], alias: bool = False
    +3378    ) -> t.Optional[exp.Expression]:
    +3379        if self._match(TokenType.FILTER):
    +3380            where = self._parse_wrapped(self._parse_where)
    +3381            this = self.expression(exp.Filter, this=this, expression=where)
    +3382
    +3383        # T-SQL allows the OVER (...) syntax after WITHIN GROUP.
    +3384        # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16
    +3385        if self._match(TokenType.WITHIN_GROUP):
    +3386            order = self._parse_wrapped(self._parse_order)
    +3387            this = self.expression(exp.WithinGroup, this=this, expression=order)
    +3388
    +3389        # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER
    +3390        # Some dialects choose to implement and some do not.
    +3391        # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html
    +3392
    +3393        # There is some code above in _parse_lambda that handles
    +3394        #   SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ...
    +3395
    +3396        # The below changes handle
    +3397        #   SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ...
    +3398
    +3399        # Oracle allows both formats
    +3400        #   (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html)
    +3401        #   and Snowflake chose to do the same for familiarity
    +3402        #   https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes
    +3403        if self._match(TokenType.IGNORE_NULLS):
    +3404            this = self.expression(exp.IgnoreNulls, this=this)
    +3405        elif self._match(TokenType.RESPECT_NULLS):
    +3406            this = self.expression(exp.RespectNulls, this=this)
    +3407
    +3408        # bigquery select from window x AS (partition by ...)
    +3409        if alias:
    +3410            self._match(TokenType.ALIAS)
    +3411        elif not self._match(TokenType.OVER):
    +3412            return this
    +3413
    +3414        if not self._match(TokenType.L_PAREN):
    +3415            return self.expression(exp.Window, this=this, alias=self._parse_id_var(False))
    +3416
    +3417        window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS)
    +3418        partition = self._parse_partition_by()
    +3419        order = self._parse_order()
    +3420        kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text
    +3421
    +3422        if kind:
    +3423            self._match(TokenType.BETWEEN)
    +3424            start = self._parse_window_spec()
    +3425            self._match(TokenType.AND)
    +3426            end = self._parse_window_spec()
    +3427
    +3428            spec = self.expression(
    +3429                exp.WindowSpec,
    +3430                kind=kind,
    +3431                start=start["value"],
    +3432                start_side=start["side"],
    +3433                end=end["value"],
    +3434                end_side=end["side"],
    +3435            )
    +3436        else:
    +3437            spec = None
    +3438
    +3439        self._match_r_paren()
    +3440
    +3441        return self.expression(
    +3442            exp.Window,
    +3443            this=this,
    +3444            partition_by=partition,
    +3445            order=order,
    +3446            spec=spec,
    +3447            alias=window_alias,
    +3448        )
    +3449
    +3450    def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]:
    +3451        self._match(TokenType.BETWEEN)
    +3452
    +3453        return {
    +3454            "value": (
    +3455                self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text
    +3456            )
    +3457            or self._parse_bitwise(),
    +3458            "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text,
    +3459        }
    +3460
    +3461    def _parse_alias(
    +3462        self, this: t.Optional[exp.Expression], explicit: bool = False
    +3463    ) -> t.Optional[exp.Expression]:
    +3464        any_token = self._match(TokenType.ALIAS)
    +3465
    +3466        if explicit and not any_token:
    +3467            return this
    +3468
    +3469        if self._match(TokenType.L_PAREN):
    +3470            aliases = self.expression(
    +3471                exp.Aliases,
    +3472                this=this,
    +3473                expressions=self._parse_csv(lambda: self._parse_id_var(any_token)),
    +3474            )
    +3475            self._match_r_paren(aliases)
    +3476            return aliases
    +3477
    +3478        alias = self._parse_id_var(any_token)
    +3479
    +3480        if alias:
    +3481            return self.expression(exp.Alias, this=this, alias=alias)
    +3482
    +3483        return this
    +3484
    +3485    def _parse_id_var(
    +3486        self,
    +3487        any_token: bool = True,
    +3488        tokens: t.Optional[t.Collection[TokenType]] = None,
    +3489        prefix_tokens: t.Optional[t.Collection[TokenType]] = None,
    +3490    ) -> t.Optional[exp.Expression]:
    +3491        identifier = self._parse_identifier()
    +3492
    +3493        if identifier:
    +3494            return identifier
    +3495
    +3496        prefix = ""
    +3497
    +3498        if prefix_tokens:
    +3499            while self._match_set(prefix_tokens):
    +3500                prefix += self._prev.text
    +3501
    +3502        if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS):
    +3503            quoted = self._prev.token_type == TokenType.STRING
    +3504            return exp.Identifier(this=prefix + self._prev.text, quoted=quoted)
    +3505
    +3506        return None
    +3507
    +3508    def _parse_string(self) -> t.Optional[exp.Expression]:
    +3509        if self._match(TokenType.STRING):
    +3510            return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev)
    +3511        return self._parse_placeholder()
    +3512
    +3513    def _parse_number(self) -> t.Optional[exp.Expression]:
    +3514        if self._match(TokenType.NUMBER):
    +3515            return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev)
    +3516        return self._parse_placeholder()
    +3517
    +3518    def _parse_identifier(self) -> t.Optional[exp.Expression]:
    +3519        if self._match(TokenType.IDENTIFIER):
    +3520            return self.expression(exp.Identifier, this=self._prev.text, quoted=True)
    +3521        return self._parse_placeholder()
    +3522
    +3523    def _parse_var(
    +3524        self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None
    +3525    ) -> t.Optional[exp.Expression]:
    +3526        if (
    +3527            (any_token and self._advance_any())
    +3528            or self._match(TokenType.VAR)
    +3529            or (self._match_set(tokens) if tokens else False)
    +3530        ):
    +3531            return self.expression(exp.Var, this=self._prev.text)
    +3532        return self._parse_placeholder()
    +3533
    +3534    def _advance_any(self) -> t.Optional[Token]:
    +3535        if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS:
    +3536            self._advance()
    +3537            return self._prev
    +3538        return None
    +3539
    +3540    def _parse_var_or_string(self) -> t.Optional[exp.Expression]:
    +3541        return self._parse_var() or self._parse_string()
    +3542
    +3543    def _parse_null(self) -> t.Optional[exp.Expression]:
    +3544        if self._match(TokenType.NULL):
    +3545            return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev)
    +3546        return None
    +3547
    +3548    def _parse_boolean(self) -> t.Optional[exp.Expression]:
    +3549        if self._match(TokenType.TRUE):
    +3550            return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev)
    +3551        if self._match(TokenType.FALSE):
    +3552            return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev)
    +3553        return None
    +3554
    +3555    def _parse_star(self) -> t.Optional[exp.Expression]:
    +3556        if self._match(TokenType.STAR):
    +3557            return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev)
    +3558        return None
    +3559
    +3560    def _parse_parameter(self) -> exp.Expression:
    +3561        wrapped = self._match(TokenType.L_BRACE)
    +3562        this = self._parse_var() or self._parse_primary()
    +3563        self._match(TokenType.R_BRACE)
    +3564        return self.expression(exp.Parameter, this=this, wrapped=wrapped)
    +3565
    +3566    def _parse_placeholder(self) -> t.Optional[exp.Expression]:
    +3567        if self._match_set(self.PLACEHOLDER_PARSERS):
    +3568            placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self)
    +3569            if placeholder:
    +3570                return placeholder
    +3571            self._advance(-1)
    +3572        return None
    +3573
    +3574    def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    +3575        if not self._match(TokenType.EXCEPT):
    +3576            return None
    +3577        if self._match(TokenType.L_PAREN, advance=False):
    +3578            return self._parse_wrapped_csv(self._parse_column)
    +3579        return self._parse_csv(self._parse_column)
    +3580
    +3581    def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]:
    +3582        if not self._match(TokenType.REPLACE):
    +3583            return None
    +3584        if self._match(TokenType.L_PAREN, advance=False):
    +3585            return self._parse_wrapped_csv(self._parse_expression)
    +3586        return self._parse_csv(self._parse_expression)
    +3587
    +3588    def _parse_csv(
    +3589        self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA
    +3590    ) -> t.List[t.Optional[exp.Expression]]:
    +3591        parse_result = parse_method()
    +3592        items = [parse_result] if parse_result is not None else []
    +3593
    +3594        while self._match(sep):
    +3595            if parse_result and self._prev_comments:
    +3596                parse_result.comments = self._prev_comments
    +3597
    +3598            parse_result = parse_method()
    +3599            if parse_result is not None:
    +3600                items.append(parse_result)
    +3601
    +3602        return items
    +3603
    +3604    def _parse_tokens(
    +3605        self, parse_method: t.Callable, expressions: t.Dict
    +3606    ) -> t.Optional[exp.Expression]:
    +3607        this = parse_method()
    +3608
    +3609        while self._match_set(expressions):
    +3610            this = self.expression(
    +3611                expressions[self._prev.token_type],
    +3612                this=this,
    +3613                comments=self._prev_comments,
    +3614                expression=parse_method(),
    +3615            )
    +3616
    +3617        return this
    +3618
    +3619    def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]:
    +3620        return self._parse_wrapped_csv(self._parse_id_var)
    +3621
    +3622    def _parse_wrapped_csv(
    +3623        self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA
    +3624    ) -> t.List[t.Optional[exp.Expression]]:
    +3625        return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep))
    +3626
    +3627    def _parse_wrapped(self, parse_method: t.Callable) -> t.Any:
    +3628        self._match_l_paren()
    +3629        parse_result = parse_method()
    +3630        self._match_r_paren()
    +3631        return parse_result
    +3632
    +3633    def _parse_select_or_expression(self) -> t.Optional[exp.Expression]:
    +3634        return self._parse_select() or self._parse_expression()
    +3635
    +3636    def _parse_ddl_select(self) -> t.Optional[exp.Expression]:
    +3637        return self._parse_set_operations(
    +3638            self._parse_select(nested=True, parse_subquery_alias=False)
    +3639        )
    +3640
    +3641    def _parse_transaction(self) -> exp.Expression:
    +3642        this = None
    +3643        if self._match_texts(self.TRANSACTION_KIND):
    +3644            this = self._prev.text
    +3645
    +3646        self._match_texts({"TRANSACTION", "WORK"})
    +3647
    +3648        modes = []
    +3649        while True:
    +3650            mode = []
    +3651            while self._match(TokenType.VAR):
    +3652                mode.append(self._prev.text)
    +3653
    +3654            if mode:
    +3655                modes.append(" ".join(mode))
    +3656            if not self._match(TokenType.COMMA):
    +3657                break
    +3658
    +3659        return self.expression(exp.Transaction, this=this, modes=modes)
    +3660
    +3661    def _parse_commit_or_rollback(self) -> exp.Expression:
    +3662        chain = None
    +3663        savepoint = None
    +3664        is_rollback = self._prev.token_type == TokenType.ROLLBACK
    +3665
    +3666        self._match_texts({"TRANSACTION", "WORK"})
    +3667
    +3668        if self._match_text_seq("TO"):
    +3669            self._match_text_seq("SAVEPOINT")
    +3670            savepoint = self._parse_id_var()
    +3671
    +3672        if self._match(TokenType.AND):
    +3673            chain = not self._match_text_seq("NO")
    +3674            self._match_text_seq("CHAIN")
    +3675
    +3676        if is_rollback:
    +3677            return self.expression(exp.Rollback, savepoint=savepoint)
    +3678        return self.expression(exp.Commit, chain=chain)
    +3679
    +3680    def _parse_add_column(self) -> t.Optional[exp.Expression]:
    +3681        if not self._match_text_seq("ADD"):
    +3682            return None
    +3683
    +3684        self._match(TokenType.COLUMN)
    +3685        exists_column = self._parse_exists(not_=True)
    +3686        expression = self._parse_column_def(self._parse_field(any_token=True))
    +3687
    +3688        if expression:
    +3689            expression.set("exists", exists_column)
    +3690
    +3691        return expression
    +3692
    +3693    def _parse_drop_column(self) -> t.Optional[exp.Expression]:
    +3694        return self._match(TokenType.DROP) and self._parse_drop(default_kind="COLUMN")
    +3695
    +3696    # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html
    +3697    def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression:
    +3698        return self.expression(
    +3699            exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists
    +3700        )
    +3701
    +3702    def _parse_add_constraint(self) -> t.Optional[exp.Expression]:
    +3703        this = None
    +3704        kind = self._prev.token_type
    +3705
    +3706        if kind == TokenType.CONSTRAINT:
    +3707            this = self._parse_id_var()
    +3708
    +3709            if self._match_text_seq("CHECK"):
    +3710                expression = self._parse_wrapped(self._parse_conjunction)
    +3711                enforced = self._match_text_seq("ENFORCED")
    +3712
    +3713                return self.expression(
    +3714                    exp.AddConstraint, this=this, expression=expression, enforced=enforced
    +3715                )
    +3716
    +3717        if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY):
    +3718            expression = self._parse_foreign_key()
    +3719        elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY):
    +3720            expression = self._parse_primary_key()
    +3721
    +3722        return self.expression(exp.AddConstraint, this=this, expression=expression)
    +3723
    +3724    def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]:
    +3725        index = self._index - 1
    +3726
    +3727        if self._match_set(self.ADD_CONSTRAINT_TOKENS):
    +3728            return self._parse_csv(self._parse_add_constraint)
    +3729
    +3730        self._retreat(index)
    +3731        return self._parse_csv(self._parse_add_column)
    +3732
    +3733    def _parse_alter_table_alter(self) -> exp.Expression:
    +3734        self._match(TokenType.COLUMN)
    +3735        column = self._parse_field(any_token=True)
    +3736
    +3737        if self._match_pair(TokenType.DROP, TokenType.DEFAULT):
    +3738            return self.expression(exp.AlterColumn, this=column, drop=True)
    +3739        if self._match_pair(TokenType.SET, TokenType.DEFAULT):
    +3740            return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction())
    +3741
    +3742        self._match_text_seq("SET", "DATA")
    +3743        return self.expression(
    +3744            exp.AlterColumn,
    +3745            this=column,
    +3746            dtype=self._match_text_seq("TYPE") and self._parse_types(),
    +3747            collate=self._match(TokenType.COLLATE) and self._parse_term(),
    +3748            using=self._match(TokenType.USING) and self._parse_conjunction(),
    +3749        )
    +3750
    +3751    def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]:
    +3752        index = self._index - 1
    +3753
    +3754        partition_exists = self._parse_exists()
    +3755        if self._match(TokenType.PARTITION, advance=False):
    +3756            return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists))
    +3757
    +3758        self._retreat(index)
    +3759        return self._parse_csv(self._parse_drop_column)
    +3760
    +3761    def _parse_alter_table_rename(self) -> exp.Expression:
    +3762        self._match_text_seq("TO")
    +3763        return self.expression(exp.RenameTable, this=self._parse_table(schema=True))
    +3764
    +3765    def _parse_alter(self) -> t.Optional[exp.Expression]:
    +3766        start = self._prev
    +3767
    +3768        if not self._match(TokenType.TABLE):
    +3769            return self._parse_as_command(start)
    +3770
    +3771        exists = self._parse_exists()
    +3772        this = self._parse_table(schema=True)
    +3773
    +3774        if self._next:
    +3775            self._advance()
    +3776        parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None
    +3777
    +3778        if parser:
    +3779            return self.expression(
    +3780                exp.AlterTable,
    +3781                this=this,
    +3782                exists=exists,
    +3783                actions=ensure_list(parser(self)),
    +3784            )
    +3785        return self._parse_as_command(start)
    +3786
    +3787    def _parse_show(self) -> t.Optional[exp.Expression]:
    +3788        parser = self._find_parser(self.SHOW_PARSERS, self._show_trie)  # type: ignore
    +3789        if parser:
    +3790            return parser(self)
    +3791        self._advance()
    +3792        return self.expression(exp.Show, this=self._prev.text.upper())
    +3793
    +3794    def _default_parse_set_item(self) -> exp.Expression:
    +3795        return self.expression(
    +3796            exp.SetItem,
    +3797            this=self._parse_statement(),
    +3798        )
    +3799
    +3800    def _parse_set_item(self) -> t.Optional[exp.Expression]:
    +3801        parser = self._find_parser(self.SET_PARSERS, self._set_trie)  # type: ignore
    +3802        return parser(self) if parser else self._default_parse_set_item()
    +3803
    +3804    def _parse_merge(self) -> exp.Expression:
    +3805        self._match(TokenType.INTO)
    +3806        target = self._parse_table()
    +3807
    +3808        self._match(TokenType.USING)
    +3809        using = self._parse_table()
    +3810
    +3811        self._match(TokenType.ON)
    +3812        on = self._parse_conjunction()
    +3813
    +3814        whens = []
    +3815        while self._match(TokenType.WHEN):
    +3816            matched = not self._match(TokenType.NOT)
    +3817            self._match_text_seq("MATCHED")
    +3818            source = (
    +3819                False
    +3820                if self._match_text_seq("BY", "TARGET")
    +3821                else self._match_text_seq("BY", "SOURCE")
    +3822            )
    +3823            condition = self._parse_conjunction() if self._match(TokenType.AND) else None
    +3824
    +3825            self._match(TokenType.THEN)
    +3826
    +3827            if self._match(TokenType.INSERT):
    +3828                _this = self._parse_star()
    +3829                if _this:
    +3830                    then = self.expression(exp.Insert, this=_this)
    +3831                else:
    +3832                    then = self.expression(
    +3833                        exp.Insert,
    +3834                        this=self._parse_value(),
    +3835                        expression=self._match(TokenType.VALUES) and self._parse_value(),
    +3836                    )
    +3837            elif self._match(TokenType.UPDATE):
    +3838                expressions = self._parse_star()
    +3839                if expressions:
    +3840                    then = self.expression(exp.Update, expressions=expressions)
    +3841                else:
    +3842                    then = self.expression(
    +3843                        exp.Update,
    +3844                        expressions=self._match(TokenType.SET)
    +3845                        and self._parse_csv(self._parse_equality),
    +3846                    )
    +3847            elif self._match(TokenType.DELETE):
    +3848                then = self.expression(exp.Var, this=self._prev.text)
    +3849            else:
    +3850                then = None
    +3851
    +3852            whens.append(
    +3853                self.expression(
    +3854                    exp.When,
    +3855                    matched=matched,
    +3856                    source=source,
    +3857                    condition=condition,
    +3858                    then=then,
    +3859                )
    +3860            )
    +3861
    +3862        return self.expression(
    +3863            exp.Merge,
    +3864            this=target,
    +3865            using=using,
    +3866            on=on,
    +3867            expressions=whens,
    +3868        )
    +3869
    +3870    def _parse_set(self) -> exp.Expression:
    +3871        return self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item))
    +3872
    +3873    def _parse_as_command(self, start: Token) -> exp.Command:
    +3874        while self._curr:
    +3875            self._advance()
    +3876        text = self._find_sql(start, self._prev)
    +3877        size = len(start.text)
    +3878        return exp.Command(this=text[:size], expression=text[size:])
    +3879
    +3880    def _find_parser(
    +3881        self, parsers: t.Dict[str, t.Callable], trie: t.Dict
    +3882    ) -> t.Optional[t.Callable]:
    +3883        index = self._index
    +3884        this = []
    +3885        while True:
    +3886            # The current token might be multiple words
    +3887            curr = self._curr.text.upper()
    +3888            key = curr.split(" ")
    +3889            this.append(curr)
    +3890            self._advance()
    +3891            result, trie = in_trie(trie, key)
    +3892            if result == 0:
    +3893                break
    +3894            if result == 2:
    +3895                subparser = parsers[" ".join(this)]
    +3896                return subparser
    +3897        self._retreat(index)
    +3898        return None
    +3899
    +3900    def _match(self, token_type, advance=True):
    +3901        if not self._curr:
    +3902            return None
    +3903
    +3904        if self._curr.token_type == token_type:
    +3905            if advance:
    +3906                self._advance()
    +3907            return True
    +3908
    +3909        return None
    +3910
    +3911    def _match_set(self, types, advance=True):
    +3912        if not self._curr:
    +3913            return None
    +3914
    +3915        if self._curr.token_type in types:
    +3916            if advance:
    +3917                self._advance()
    +3918            return True
    +3919
    +3920        return None
    +3921
    +3922    def _match_pair(self, token_type_a, token_type_b, advance=True):
    +3923        if not self._curr or not self._next:
    +3924            return None
    +3925
    +3926        if self._curr.token_type == token_type_a and self._next.token_type == token_type_b:
    +3927            if advance:
    +3928                self._advance(2)
    +3929            return True
    +3930
    +3931        return None
    +3932
    +3933    def _match_l_paren(self, expression=None):
    +3934        if not self._match(TokenType.L_PAREN):
    +3935            self.raise_error("Expecting (")
    +3936        if expression and self._prev_comments:
    +3937            expression.comments = self._prev_comments
    +3938
    +3939    def _match_r_paren(self, expression=None):
    +3940        if not self._match(TokenType.R_PAREN):
    +3941            self.raise_error("Expecting )")
    +3942        if expression and self._prev_comments:
    +3943            expression.comments = self._prev_comments
    +3944
    +3945    def _match_texts(self, texts, advance=True):
    +3946        if self._curr and self._curr.text.upper() in texts:
    +3947            if advance:
    +3948                self._advance()
    +3949            return True
    +3950        return False
    +3951
    +3952    def _match_text_seq(self, *texts, advance=True):
    +3953        index = self._index
    +3954        for text in texts:
    +3955            if self._curr and self._curr.text.upper() == text:
    +3956                self._advance()
    +3957            else:
    +3958                self._retreat(index)
    +3959                return False
    +3960
    +3961        if not advance:
    +3962            self._retreat(index)
    +3963
    +3964        return True
    +3965
    +3966    def _replace_columns_with_dots(self, this):
    +3967        if isinstance(this, exp.Dot):
    +3968            exp.replace_children(this, self._replace_columns_with_dots)
    +3969        elif isinstance(this, exp.Column):
    +3970            exp.replace_children(this, self._replace_columns_with_dots)
    +3971            table = this.args.get("table")
    +3972            this = (
    +3973                self.expression(exp.Dot, this=table, expression=this.this)
    +3974                if table
    +3975                else self.expression(exp.Var, this=this.name)
    +3976            )
    +3977        elif isinstance(this, exp.Identifier):
    +3978            this = self.expression(exp.Var, this=this.name)
    +3979        return this
    +3980
    +3981    def _replace_lambda(self, node, lambda_variables):
    +3982        if isinstance(node, exp.Column):
    +3983            if node.name in lambda_variables:
    +3984                return node.this
    +3985        return node
     
    @@ -8087,24 +8107,24 @@ Default: "nulls_are_small"
    -
    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()
    +            
    730    def __init__(
    +731        self,
    +732        error_level: t.Optional[ErrorLevel] = None,
    +733        error_message_context: int = 100,
    +734        index_offset: int = 0,
    +735        unnest_column_only: bool = False,
    +736        alias_post_tablesample: bool = False,
    +737        max_errors: int = 3,
    +738        null_ordering: t.Optional[str] = None,
    +739    ):
    +740        self.error_level = error_level or ErrorLevel.IMMEDIATE
    +741        self.error_message_context = error_message_context
    +742        self.index_offset = index_offset
    +743        self.unnest_column_only = unnest_column_only
    +744        self.alias_post_tablesample = alias_post_tablesample
    +745        self.max_errors = max_errors
    +746        self.null_ordering = null_ordering
    +747        self.reset()
     
    @@ -8122,15 +8142,15 @@ Default: "nulls_are_small"
    -
    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
    +            
    749    def reset(self):
    +750        self.sql = ""
    +751        self.errors = []
    +752        self._tokens = []
    +753        self._index = 0
    +754        self._curr = None
    +755        self._next = None
    +756        self._prev = None
    +757        self._prev_comments = None
     
    @@ -8148,23 +8168,23 @@ Default: "nulls_are_small"
    -
    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        )
    +            
    759    def parse(
    +760        self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
    +761    ) -> t.List[t.Optional[exp.Expression]]:
    +762        """
    +763        Parses a list of tokens and returns a list of syntax trees, one tree
    +764        per parsed SQL statement.
    +765
    +766        Args:
    +767            raw_tokens: the list of tokens.
    +768            sql: the original SQL string, used to produce helpful debug messages.
    +769
    +770        Returns:
    +771            The list of syntax trees.
    +772        """
    +773        return self._parse(
    +774            parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql
    +775        )
     
    @@ -8198,39 +8218,39 @@ per parsed SQL statement.

    -
    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]
    +            
    777    def parse_into(
    +778        self,
    +779        expression_types: exp.IntoType,
    +780        raw_tokens: t.List[Token],
    +781        sql: t.Optional[str] = None,
    +782    ) -> t.List[t.Optional[exp.Expression]]:
    +783        """
    +784        Parses a list of tokens into a given Expression type. If a collection of Expression
    +785        types is given instead, this method will try to parse the token list into each one
    +786        of them, stopping at the first for which the parsing succeeds.
    +787
    +788        Args:
    +789            expression_types: the expression type(s) to try and parse the token list into.
    +790            raw_tokens: the list of tokens.
    +791            sql: the original SQL string, used to produce helpful debug messages.
    +792
    +793        Returns:
    +794            The target Expression.
    +795        """
    +796        errors = []
    +797        for expression_type in ensure_collection(expression_types):
    +798            parser = self.EXPRESSION_PARSERS.get(expression_type)
    +799            if not parser:
    +800                raise TypeError(f"No parser registered for {expression_type}")
    +801            try:
    +802                return self._parse(parser, raw_tokens, sql)
    +803            except ParseError as e:
    +804                e.errors[0]["into_expression"] = expression_type
    +805                errors.append(e)
    +806        raise ParseError(
    +807            f"Failed to parse into {expression_types}",
    +808            errors=merge_errors(errors),
    +809        ) from errors[-1]
     
    @@ -8266,18 +8286,18 @@ of them, stopping at the first for which the parsing succeeds.

    -
    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            )
    +            
    845    def check_errors(self) -> None:
    +846        """
    +847        Logs or raises any found errors, depending on the chosen error level setting.
    +848        """
    +849        if self.error_level == ErrorLevel.WARN:
    +850            for error in self.errors:
    +851                logger.error(str(error))
    +852        elif self.error_level == ErrorLevel.RAISE and self.errors:
    +853            raise ParseError(
    +854                concat_messages(self.errors, self.max_errors),
    +855                errors=merge_errors(self.errors),
    +856            )
     
    @@ -8297,33 +8317,33 @@ of them, stopping at the first for which the parsing succeeds.

    -
    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        )
    +            
    858    def raise_error(self, message: str, token: t.Optional[Token] = None) -> None:
    +859        """
    +860        Appends an error in the list of recorded errors or raises it, depending on the chosen
    +861        error level setting.
    +862        """
    +863        token = token or self._curr or self._prev or Token.string("")
    +864        start = self._find_token(token)
    +865        end = start + len(token.text)
    +866        start_context = self.sql[max(start - self.error_message_context, 0) : start]
    +867        highlight = self.sql[start:end]
    +868        end_context = self.sql[end : end + self.error_message_context]
    +869
    +870        error = ParseError.new(
    +871            f"{message}. Line {token.line}, Col: {token.col}.\n"
    +872            f"  {start_context}\033[4m{highlight}\033[0m{end_context}",
    +873            description=message,
    +874            line=token.line,
    +875            col=token.col,
    +876            start_context=start_context,
    +877            highlight=highlight,
    +878            end_context=end_context,
    +879        )
    +880
    +881        if self.error_level == ErrorLevel.IMMEDIATE:
    +882            raise error
     883
    -884        if self.error_level == ErrorLevel.IMMEDIATE:
    -885            raise error
    -886
    -887        self.errors.append(error)
    +884        self.errors.append(error)
     
    @@ -8344,28 +8364,28 @@ error level setting.

    -
    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
    +            
    886    def expression(
    +887        self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs
    +888    ) -> exp.Expression:
    +889        """
    +890        Creates a new, validated Expression.
    +891
    +892        Args:
    +893            exp_class: the expression class to instantiate.
    +894            comments: an optional list of comments to attach to the expression.
    +895            kwargs: the arguments to set for the expression along with their respective values.
    +896
    +897        Returns:
    +898            The target expression.
    +899        """
    +900        instance = exp_class(**kwargs)
    +901        if self._prev_comments:
    +902            instance.comments = self._prev_comments
    +903            self._prev_comments = None
    +904        if comments:
    +905            instance.comments = comments
    +906        self.validate_expression(instance)
    +907        return instance
     
    @@ -8399,22 +8419,22 @@ error level setting.

    -
    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)
    +            
    909    def validate_expression(
    +910        self, expression: exp.Expression, args: t.Optional[t.List] = None
    +911    ) -> None:
    +912        """
    +913        Validates an already instantiated expression, making sure that all its mandatory arguments
    +914        are set.
    +915
    +916        Args:
    +917            expression: the expression to validate.
    +918            args: an optional list of items that was used to instantiate the expression, if it's a Func.
    +919        """
    +920        if self.error_level == ErrorLevel.IGNORE:
    +921            return
    +922
    +923        for error_message in expression.error_messages(args):
    +924            self.raise_error(error_message)
     
    diff --git a/docs/sqlglot/tokens.html b/docs/sqlglot/tokens.html index 6427485..097eebb 100644 --- a/docs/sqlglot/tokens.html +++ b/docs/sqlglot/tokens.html @@ -147,6 +147,12 @@
  • LR_ARROW
  • +
  • + LT_AT +
  • +
  • + AT_GT +
  • DOLLAR
  • @@ -159,6 +165,9 @@
  • NATIONAL
  • +
  • + DAMP +
  • BLOCK_START
  • @@ -207,21 +216,36 @@
  • BYTE_STRING
  • +
  • + BIT +
  • BOOLEAN
  • TINYINT
  • +
  • + UTINYINT +
  • SMALLINT
  • +
  • + USMALLINT +
  • INT
  • +
  • + UINT +
  • BIGINT
  • +
  • + UBIGINT +
  • FLOAT
  • @@ -1001,1075 +1025,1089 @@
    46 HASH_ARROW = auto() 47 DHASH_ARROW = auto() 48 LR_ARROW = auto() - 49 DOLLAR = auto() - 50 PARAMETER = auto() - 51 SESSION_PARAMETER = auto() - 52 NATIONAL = auto() - 53 - 54 BLOCK_START = auto() - 55 BLOCK_END = auto() + 49 LT_AT = auto() + 50 AT_GT = auto() + 51 DOLLAR = auto() + 52 PARAMETER = auto() + 53 SESSION_PARAMETER = auto() + 54 NATIONAL = auto() + 55 DAMP = auto() 56 - 57 SPACE = auto() - 58 BREAK = auto() + 57 BLOCK_START = auto() + 58 BLOCK_END = auto() 59 - 60 STRING = auto() - 61 NUMBER = auto() - 62 IDENTIFIER = auto() - 63 DATABASE = auto() - 64 COLUMN = auto() - 65 COLUMN_DEF = auto() - 66 SCHEMA = auto() - 67 TABLE = auto() - 68 VAR = auto() - 69 BIT_STRING = auto() - 70 HEX_STRING = auto() - 71 BYTE_STRING = auto() - 72 - 73 # types - 74 BOOLEAN = auto() - 75 TINYINT = auto() - 76 SMALLINT = auto() - 77 INT = auto() - 78 BIGINT = auto() - 79 FLOAT = auto() - 80 DOUBLE = auto() - 81 DECIMAL = auto() - 82 CHAR = auto() - 83 NCHAR = auto() - 84 VARCHAR = auto() - 85 NVARCHAR = auto() - 86 TEXT = auto() - 87 MEDIUMTEXT = auto() - 88 LONGTEXT = auto() - 89 MEDIUMBLOB = auto() - 90 LONGBLOB = auto() - 91 BINARY = auto() - 92 VARBINARY = auto() - 93 JSON = auto() - 94 JSONB = auto() - 95 TIME = auto() - 96 TIMESTAMP = auto() - 97 TIMESTAMPTZ = auto() - 98 TIMESTAMPLTZ = auto() - 99 DATETIME = auto() - 100 DATE = auto() - 101 UUID = auto() - 102 GEOGRAPHY = auto() - 103 NULLABLE = auto() - 104 GEOMETRY = auto() - 105 HLLSKETCH = auto() - 106 HSTORE = auto() - 107 SUPER = auto() - 108 SERIAL = auto() - 109 SMALLSERIAL = auto() - 110 BIGSERIAL = auto() - 111 XML = auto() - 112 UNIQUEIDENTIFIER = auto() - 113 MONEY = auto() - 114 SMALLMONEY = auto() - 115 ROWVERSION = auto() - 116 IMAGE = auto() - 117 VARIANT = auto() - 118 OBJECT = auto() - 119 INET = auto() - 120 - 121 # keywords - 122 ALIAS = auto() - 123 ALTER = auto() - 124 ALWAYS = auto() - 125 ALL = auto() - 126 ANTI = auto() - 127 ANY = auto() - 128 APPLY = auto() - 129 ARRAY = auto() - 130 ASC = auto() - 131 ASOF = auto() - 132 AT_TIME_ZONE = auto() - 133 AUTO_INCREMENT = auto() - 134 BEGIN = auto() - 135 BETWEEN = auto() - 136 BOTH = auto() - 137 BUCKET = auto() - 138 BY_DEFAULT = auto() - 139 CACHE = auto() - 140 CASCADE = auto() - 141 CASE = auto() - 142 CHARACTER_SET = auto() - 143 CLUSTER_BY = auto() - 144 COLLATE = auto() - 145 COMMAND = auto() - 146 COMMENT = auto() - 147 COMMIT = auto() - 148 COMPOUND = auto() - 149 CONSTRAINT = auto() - 150 CREATE = auto() - 151 CROSS = auto() - 152 CUBE = auto() - 153 CURRENT_DATE = auto() - 154 CURRENT_DATETIME = auto() - 155 CURRENT_ROW = auto() - 156 CURRENT_TIME = auto() - 157 CURRENT_TIMESTAMP = auto() - 158 DEFAULT = auto() - 159 DELETE = auto() - 160 DESC = auto() - 161 DESCRIBE = auto() - 162 DISTINCT = auto() - 163 DISTINCT_FROM = auto() - 164 DISTRIBUTE_BY = auto() - 165 DIV = auto() - 166 DROP = auto() - 167 ELSE = auto() - 168 END = auto() - 169 ESCAPE = auto() - 170 EXCEPT = auto() - 171 EXECUTE = auto() - 172 EXISTS = auto() - 173 FALSE = auto() - 174 FETCH = auto() - 175 FILTER = auto() - 176 FINAL = auto() - 177 FIRST = auto() - 178 FOLLOWING = auto() - 179 FOR = auto() - 180 FOREIGN_KEY = auto() - 181 FORMAT = auto() - 182 FROM = auto() - 183 FULL = auto() - 184 FUNCTION = auto() - 185 GLOB = auto() - 186 GLOBAL = auto() - 187 GROUP_BY = auto() - 188 GROUPING_SETS = auto() - 189 HAVING = auto() - 190 HINT = auto() - 191 IF = auto() - 192 IGNORE_NULLS = auto() - 193 ILIKE = auto() - 194 ILIKE_ANY = auto() - 195 IN = auto() - 196 INDEX = auto() - 197 INNER = auto() - 198 INSERT = auto() - 199 INTERSECT = auto() - 200 INTERVAL = auto() - 201 INTO = auto() - 202 INTRODUCER = auto() - 203 IRLIKE = auto() - 204 IS = auto() - 205 ISNULL = auto() - 206 JOIN = auto() - 207 JOIN_MARKER = auto() - 208 LANGUAGE = auto() - 209 LATERAL = auto() - 210 LAZY = auto() - 211 LEADING = auto() - 212 LEFT = auto() - 213 LIKE = auto() - 214 LIKE_ANY = auto() - 215 LIMIT = auto() - 216 LOAD_DATA = auto() - 217 LOCAL = auto() - 218 MAP = auto() - 219 MATCH_RECOGNIZE = auto() - 220 MATERIALIZED = auto() - 221 MERGE = auto() - 222 MOD = auto() - 223 NATURAL = auto() - 224 NEXT = auto() - 225 NO_ACTION = auto() - 226 NOTNULL = auto() - 227 NULL = auto() - 228 NULLS_FIRST = auto() - 229 NULLS_LAST = auto() - 230 OFFSET = auto() - 231 ON = auto() - 232 ONLY = auto() - 233 OPTIONS = auto() - 234 ORDER_BY = auto() - 235 ORDERED = auto() - 236 ORDINALITY = auto() - 237 OUTER = auto() - 238 OUT_OF = auto() - 239 OVER = auto() - 240 OVERLAPS = auto() - 241 OVERWRITE = auto() - 242 PARTITION = auto() - 243 PARTITION_BY = auto() - 244 PERCENT = auto() - 245 PIVOT = auto() - 246 PLACEHOLDER = auto() - 247 PRECEDING = auto() - 248 PRIMARY_KEY = auto() - 249 PROCEDURE = auto() - 250 PROPERTIES = auto() - 251 PSEUDO_TYPE = auto() - 252 QUALIFY = auto() - 253 QUOTE = auto() - 254 RANGE = auto() - 255 RECURSIVE = auto() - 256 REPLACE = auto() - 257 RESPECT_NULLS = auto() - 258 RETURNING = auto() - 259 REFERENCES = auto() - 260 RIGHT = auto() - 261 RLIKE = auto() - 262 ROLLBACK = auto() - 263 ROLLUP = auto() - 264 ROW = auto() - 265 ROWS = auto() - 266 SEED = auto() - 267 SELECT = auto() - 268 SEMI = auto() - 269 SEPARATOR = auto() - 270 SERDE_PROPERTIES = auto() - 271 SET = auto() - 272 SHOW = auto() - 273 SIMILAR_TO = auto() - 274 SOME = auto() - 275 SORTKEY = auto() - 276 SORT_BY = auto() - 277 STRUCT = auto() - 278 TABLE_SAMPLE = auto() - 279 TEMPORARY = auto() - 280 TOP = auto() - 281 THEN = auto() - 282 TRAILING = auto() - 283 TRUE = auto() - 284 UNBOUNDED = auto() - 285 UNCACHE = auto() - 286 UNION = auto() - 287 UNLOGGED = auto() - 288 UNNEST = auto() - 289 UNPIVOT = auto() - 290 UPDATE = auto() - 291 USE = auto() - 292 USING = auto() - 293 VALUES = auto() - 294 VIEW = auto() - 295 VOLATILE = auto() - 296 WHEN = auto() - 297 WHERE = auto() - 298 WINDOW = auto() - 299 WITH = auto() - 300 WITH_TIME_ZONE = auto() - 301 WITH_LOCAL_TIME_ZONE = auto() - 302 WITHIN_GROUP = auto() - 303 WITHOUT_TIME_ZONE = auto() - 304 UNIQUE = auto() - 305 - 306 - 307class Token: - 308 __slots__ = ("token_type", "text", "line", "col", "comments") - 309 - 310 @classmethod - 311 def number(cls, number: int) -> Token: - 312 """Returns a NUMBER token with `number` as its text.""" - 313 return cls(TokenType.NUMBER, str(number)) + 60 SPACE = auto() + 61 BREAK = auto() + 62 + 63 STRING = auto() + 64 NUMBER = auto() + 65 IDENTIFIER = auto() + 66 DATABASE = auto() + 67 COLUMN = auto() + 68 COLUMN_DEF = auto() + 69 SCHEMA = auto() + 70 TABLE = auto() + 71 VAR = auto() + 72 BIT_STRING = auto() + 73 HEX_STRING = auto() + 74 BYTE_STRING = auto() + 75 + 76 # types + 77 BIT = auto() + 78 BOOLEAN = auto() + 79 TINYINT = auto() + 80 UTINYINT = auto() + 81 SMALLINT = auto() + 82 USMALLINT = auto() + 83 INT = auto() + 84 UINT = auto() + 85 BIGINT = auto() + 86 UBIGINT = auto() + 87 FLOAT = auto() + 88 DOUBLE = auto() + 89 DECIMAL = auto() + 90 CHAR = auto() + 91 NCHAR = auto() + 92 VARCHAR = auto() + 93 NVARCHAR = auto() + 94 TEXT = auto() + 95 MEDIUMTEXT = auto() + 96 LONGTEXT = auto() + 97 MEDIUMBLOB = auto() + 98 LONGBLOB = auto() + 99 BINARY = auto() + 100 VARBINARY = auto() + 101 JSON = auto() + 102 JSONB = auto() + 103 TIME = auto() + 104 TIMESTAMP = auto() + 105 TIMESTAMPTZ = auto() + 106 TIMESTAMPLTZ = auto() + 107 DATETIME = auto() + 108 DATE = auto() + 109 UUID = auto() + 110 GEOGRAPHY = auto() + 111 NULLABLE = auto() + 112 GEOMETRY = auto() + 113 HLLSKETCH = auto() + 114 HSTORE = auto() + 115 SUPER = auto() + 116 SERIAL = auto() + 117 SMALLSERIAL = auto() + 118 BIGSERIAL = auto() + 119 XML = auto() + 120 UNIQUEIDENTIFIER = auto() + 121 MONEY = auto() + 122 SMALLMONEY = auto() + 123 ROWVERSION = auto() + 124 IMAGE = auto() + 125 VARIANT = auto() + 126 OBJECT = auto() + 127 INET = auto() + 128 + 129 # keywords + 130 ALIAS = auto() + 131 ALTER = auto() + 132 ALWAYS = auto() + 133 ALL = auto() + 134 ANTI = auto() + 135 ANY = auto() + 136 APPLY = auto() + 137 ARRAY = auto() + 138 ASC = auto() + 139 ASOF = auto() + 140 AT_TIME_ZONE = auto() + 141 AUTO_INCREMENT = auto() + 142 BEGIN = auto() + 143 BETWEEN = auto() + 144 BOTH = auto() + 145 BUCKET = auto() + 146 BY_DEFAULT = auto() + 147 CACHE = auto() + 148 CASCADE = auto() + 149 CASE = auto() + 150 CHARACTER_SET = auto() + 151 CLUSTER_BY = auto() + 152 COLLATE = auto() + 153 COMMAND = auto() + 154 COMMENT = auto() + 155 COMMIT = auto() + 156 COMPOUND = auto() + 157 CONSTRAINT = auto() + 158 CREATE = auto() + 159 CROSS = auto() + 160 CUBE = auto() + 161 CURRENT_DATE = auto() + 162 CURRENT_DATETIME = auto() + 163 CURRENT_ROW = auto() + 164 CURRENT_TIME = auto() + 165 CURRENT_TIMESTAMP = auto() + 166 DEFAULT = auto() + 167 DELETE = auto() + 168 DESC = auto() + 169 DESCRIBE = auto() + 170 DISTINCT = auto() + 171 DISTINCT_FROM = auto() + 172 DISTRIBUTE_BY = auto() + 173 DIV = auto() + 174 DROP = auto() + 175 ELSE = auto() + 176 END = auto() + 177 ESCAPE = auto() + 178 EXCEPT = auto() + 179 EXECUTE = auto() + 180 EXISTS = auto() + 181 FALSE = auto() + 182 FETCH = auto() + 183 FILTER = auto() + 184 FINAL = auto() + 185 FIRST = auto() + 186 FOLLOWING = auto() + 187 FOR = auto() + 188 FOREIGN_KEY = auto() + 189 FORMAT = auto() + 190 FROM = auto() + 191 FULL = auto() + 192 FUNCTION = auto() + 193 GLOB = auto() + 194 GLOBAL = auto() + 195 GROUP_BY = auto() + 196 GROUPING_SETS = auto() + 197 HAVING = auto() + 198 HINT = auto() + 199 IF = auto() + 200 IGNORE_NULLS = auto() + 201 ILIKE = auto() + 202 ILIKE_ANY = auto() + 203 IN = auto() + 204 INDEX = auto() + 205 INNER = auto() + 206 INSERT = auto() + 207 INTERSECT = auto() + 208 INTERVAL = auto() + 209 INTO = auto() + 210 INTRODUCER = auto() + 211 IRLIKE = auto() + 212 IS = auto() + 213 ISNULL = auto() + 214 JOIN = auto() + 215 JOIN_MARKER = auto() + 216 LANGUAGE = auto() + 217 LATERAL = auto() + 218 LAZY = auto() + 219 LEADING = auto() + 220 LEFT = auto() + 221 LIKE = auto() + 222 LIKE_ANY = auto() + 223 LIMIT = auto() + 224 LOAD_DATA = auto() + 225 LOCAL = auto() + 226 MAP = auto() + 227 MATCH_RECOGNIZE = auto() + 228 MATERIALIZED = auto() + 229 MERGE = auto() + 230 MOD = auto() + 231 NATURAL = auto() + 232 NEXT = auto() + 233 NO_ACTION = auto() + 234 NOTNULL = auto() + 235 NULL = auto() + 236 NULLS_FIRST = auto() + 237 NULLS_LAST = auto() + 238 OFFSET = auto() + 239 ON = auto() + 240 ONLY = auto() + 241 OPTIONS = auto() + 242 ORDER_BY = auto() + 243 ORDERED = auto() + 244 ORDINALITY = auto() + 245 OUTER = auto() + 246 OUT_OF = auto() + 247 OVER = auto() + 248 OVERLAPS = auto() + 249 OVERWRITE = auto() + 250 PARTITION = auto() + 251 PARTITION_BY = auto() + 252 PERCENT = auto() + 253 PIVOT = auto() + 254 PLACEHOLDER = auto() + 255 PRECEDING = auto() + 256 PRIMARY_KEY = auto() + 257 PROCEDURE = auto() + 258 PROPERTIES = auto() + 259 PSEUDO_TYPE = auto() + 260 QUALIFY = auto() + 261 QUOTE = auto() + 262 RANGE = auto() + 263 RECURSIVE = auto() + 264 REPLACE = auto() + 265 RESPECT_NULLS = auto() + 266 RETURNING = auto() + 267 REFERENCES = auto() + 268 RIGHT = auto() + 269 RLIKE = auto() + 270 ROLLBACK = auto() + 271 ROLLUP = auto() + 272 ROW = auto() + 273 ROWS = auto() + 274 SEED = auto() + 275 SELECT = auto() + 276 SEMI = auto() + 277 SEPARATOR = auto() + 278 SERDE_PROPERTIES = auto() + 279 SET = auto() + 280 SHOW = auto() + 281 SIMILAR_TO = auto() + 282 SOME = auto() + 283 SORTKEY = auto() + 284 SORT_BY = auto() + 285 STRUCT = auto() + 286 TABLE_SAMPLE = auto() + 287 TEMPORARY = auto() + 288 TOP = auto() + 289 THEN = auto() + 290 TRAILING = auto() + 291 TRUE = auto() + 292 UNBOUNDED = auto() + 293 UNCACHE = auto() + 294 UNION = auto() + 295 UNLOGGED = auto() + 296 UNNEST = auto() + 297 UNPIVOT = auto() + 298 UPDATE = auto() + 299 USE = auto() + 300 USING = auto() + 301 VALUES = auto() + 302 VIEW = auto() + 303 VOLATILE = auto() + 304 WHEN = auto() + 305 WHERE = auto() + 306 WINDOW = auto() + 307 WITH = auto() + 308 WITH_TIME_ZONE = auto() + 309 WITH_LOCAL_TIME_ZONE = auto() + 310 WITHIN_GROUP = auto() + 311 WITHOUT_TIME_ZONE = auto() + 312 UNIQUE = auto() + 313 314 - 315 @classmethod - 316 def string(cls, string: str) -> Token: - 317 """Returns a STRING token with `string` as its text.""" - 318 return cls(TokenType.STRING, string) - 319 - 320 @classmethod - 321 def identifier(cls, identifier: str) -> Token: - 322 """Returns an IDENTIFIER token with `identifier` as its text.""" - 323 return cls(TokenType.IDENTIFIER, identifier) - 324 - 325 @classmethod - 326 def var(cls, var: str) -> Token: - 327 """Returns an VAR token with `var` as its text.""" - 328 return cls(TokenType.VAR, var) - 329 - 330 def __init__( - 331 self, - 332 token_type: TokenType, - 333 text: str, - 334 line: int = 1, - 335 col: int = 1, - 336 comments: t.List[str] = [], - 337 ) -> None: - 338 self.token_type = token_type - 339 self.text = text - 340 self.line = line - 341 self.col = max(col - len(text), 1) - 342 self.comments = comments - 343 - 344 def __repr__(self) -> str: - 345 attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__) - 346 return f"<Token {attributes}>" - 347 - 348 - 349class _Tokenizer(type): - 350 def __new__(cls, clsname, bases, attrs): # type: ignore - 351 klass = super().__new__(cls, clsname, bases, attrs) - 352 - 353 klass._QUOTES = { - 354 f"{prefix}{s}": e - 355 for s, e in cls._delimeter_list_to_dict(klass.QUOTES).items() - 356 for prefix in (("",) if s[0].isalpha() else ("", "n", "N")) - 357 } - 358 klass._BIT_STRINGS = cls._delimeter_list_to_dict(klass.BIT_STRINGS) - 359 klass._HEX_STRINGS = cls._delimeter_list_to_dict(klass.HEX_STRINGS) - 360 klass._BYTE_STRINGS = cls._delimeter_list_to_dict(klass.BYTE_STRINGS) - 361 klass._IDENTIFIERS = cls._delimeter_list_to_dict(klass.IDENTIFIERS) - 362 klass._STRING_ESCAPES = set(klass.STRING_ESCAPES) - 363 klass._IDENTIFIER_ESCAPES = set(klass.IDENTIFIER_ESCAPES) - 364 klass._COMMENTS = dict( - 365 (comment, None) if isinstance(comment, str) else (comment[0], comment[1]) - 366 for comment in klass.COMMENTS - 367 ) - 368 - 369 klass.KEYWORD_TRIE = new_trie( - 370 key.upper() - 371 for key in { - 372 **klass.KEYWORDS, - 373 **{comment: TokenType.COMMENT for comment in klass._COMMENTS}, - 374 **{quote: TokenType.QUOTE for quote in klass._QUOTES}, - 375 **{bit_string: TokenType.BIT_STRING for bit_string in klass._BIT_STRINGS}, - 376 **{hex_string: TokenType.HEX_STRING for hex_string in klass._HEX_STRINGS}, - 377 **{byte_string: TokenType.BYTE_STRING for byte_string in klass._BYTE_STRINGS}, - 378 } - 379 if " " in key or any(single in key for single in klass.SINGLE_TOKENS) - 380 ) - 381 - 382 return klass - 383 - 384 @staticmethod - 385 def _delimeter_list_to_dict(list: t.List[str | t.Tuple[str, str]]) -> t.Dict[str, str]: - 386 return dict((item, item) if isinstance(item, str) else (item[0], item[1]) for item in list) - 387 - 388 - 389class Tokenizer(metaclass=_Tokenizer): - 390 SINGLE_TOKENS = { - 391 "(": TokenType.L_PAREN, - 392 ")": TokenType.R_PAREN, - 393 "[": TokenType.L_BRACKET, - 394 "]": TokenType.R_BRACKET, - 395 "{": TokenType.L_BRACE, - 396 "}": TokenType.R_BRACE, - 397 "&": TokenType.AMP, - 398 "^": TokenType.CARET, - 399 ":": TokenType.COLON, - 400 ",": TokenType.COMMA, - 401 ".": TokenType.DOT, - 402 "-": TokenType.DASH, - 403 "=": TokenType.EQ, - 404 ">": TokenType.GT, - 405 "<": TokenType.LT, - 406 "%": TokenType.MOD, - 407 "!": TokenType.NOT, - 408 "|": TokenType.PIPE, - 409 "+": TokenType.PLUS, - 410 ";": TokenType.SEMICOLON, - 411 "/": TokenType.SLASH, - 412 "\\": TokenType.BACKSLASH, - 413 "*": TokenType.STAR, - 414 "~": TokenType.TILDA, - 415 "?": TokenType.PLACEHOLDER, - 416 "@": TokenType.PARAMETER, - 417 # used for breaking a var like x'y' but nothing else - 418 # the token type doesn't matter - 419 "'": TokenType.QUOTE, - 420 "`": TokenType.IDENTIFIER, - 421 '"': TokenType.IDENTIFIER, - 422 "#": TokenType.HASH, - 423 } - 424 - 425 QUOTES: t.List[t.Tuple[str, str] | str] = ["'"] - 426 - 427 BIT_STRINGS: t.List[str | t.Tuple[str, str]] = [] - 428 - 429 HEX_STRINGS: t.List[str | t.Tuple[str, str]] = [] - 430 - 431 BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = [] + 315class Token: + 316 __slots__ = ("token_type", "text", "line", "col", "comments") + 317 + 318 @classmethod + 319 def number(cls, number: int) -> Token: + 320 """Returns a NUMBER token with `number` as its text.""" + 321 return cls(TokenType.NUMBER, str(number)) + 322 + 323 @classmethod + 324 def string(cls, string: str) -> Token: + 325 """Returns a STRING token with `string` as its text.""" + 326 return cls(TokenType.STRING, string) + 327 + 328 @classmethod + 329 def identifier(cls, identifier: str) -> Token: + 330 """Returns an IDENTIFIER token with `identifier` as its text.""" + 331 return cls(TokenType.IDENTIFIER, identifier) + 332 + 333 @classmethod + 334 def var(cls, var: str) -> Token: + 335 """Returns an VAR token with `var` as its text.""" + 336 return cls(TokenType.VAR, var) + 337 + 338 def __init__( + 339 self, + 340 token_type: TokenType, + 341 text: str, + 342 line: int = 1, + 343 col: int = 1, + 344 comments: t.List[str] = [], + 345 ) -> None: + 346 self.token_type = token_type + 347 self.text = text + 348 self.line = line + 349 self.col = max(col - len(text), 1) + 350 self.comments = comments + 351 + 352 def __repr__(self) -> str: + 353 attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__) + 354 return f"<Token {attributes}>" + 355 + 356 + 357class _Tokenizer(type): + 358 def __new__(cls, clsname, bases, attrs): # type: ignore + 359 klass = super().__new__(cls, clsname, bases, attrs) + 360 + 361 klass._QUOTES = { + 362 f"{prefix}{s}": e + 363 for s, e in cls._delimeter_list_to_dict(klass.QUOTES).items() + 364 for prefix in (("",) if s[0].isalpha() else ("", "n", "N")) + 365 } + 366 klass._BIT_STRINGS = cls._delimeter_list_to_dict(klass.BIT_STRINGS) + 367 klass._HEX_STRINGS = cls._delimeter_list_to_dict(klass.HEX_STRINGS) + 368 klass._BYTE_STRINGS = cls._delimeter_list_to_dict(klass.BYTE_STRINGS) + 369 klass._IDENTIFIERS = cls._delimeter_list_to_dict(klass.IDENTIFIERS) + 370 klass._STRING_ESCAPES = set(klass.STRING_ESCAPES) + 371 klass._IDENTIFIER_ESCAPES = set(klass.IDENTIFIER_ESCAPES) + 372 klass._COMMENTS = dict( + 373 (comment, None) if isinstance(comment, str) else (comment[0], comment[1]) + 374 for comment in klass.COMMENTS + 375 ) + 376 + 377 klass.KEYWORD_TRIE = new_trie( + 378 key.upper() + 379 for key in { + 380 **klass.KEYWORDS, + 381 **{comment: TokenType.COMMENT for comment in klass._COMMENTS}, + 382 **{quote: TokenType.QUOTE for quote in klass._QUOTES}, + 383 **{bit_string: TokenType.BIT_STRING for bit_string in klass._BIT_STRINGS}, + 384 **{hex_string: TokenType.HEX_STRING for hex_string in klass._HEX_STRINGS}, + 385 **{byte_string: TokenType.BYTE_STRING for byte_string in klass._BYTE_STRINGS}, + 386 } + 387 if " " in key or any(single in key for single in klass.SINGLE_TOKENS) + 388 ) + 389 + 390 return klass + 391 + 392 @staticmethod + 393 def _delimeter_list_to_dict(list: t.List[str | t.Tuple[str, str]]) -> t.Dict[str, str]: + 394 return dict((item, item) if isinstance(item, str) else (item[0], item[1]) for item in list) + 395 + 396 + 397class Tokenizer(metaclass=_Tokenizer): + 398 SINGLE_TOKENS = { + 399 "(": TokenType.L_PAREN, + 400 ")": TokenType.R_PAREN, + 401 "[": TokenType.L_BRACKET, + 402 "]": TokenType.R_BRACKET, + 403 "{": TokenType.L_BRACE, + 404 "}": TokenType.R_BRACE, + 405 "&": TokenType.AMP, + 406 "^": TokenType.CARET, + 407 ":": TokenType.COLON, + 408 ",": TokenType.COMMA, + 409 ".": TokenType.DOT, + 410 "-": TokenType.DASH, + 411 "=": TokenType.EQ, + 412 ">": TokenType.GT, + 413 "<": TokenType.LT, + 414 "%": TokenType.MOD, + 415 "!": TokenType.NOT, + 416 "|": TokenType.PIPE, + 417 "+": TokenType.PLUS, + 418 ";": TokenType.SEMICOLON, + 419 "/": TokenType.SLASH, + 420 "\\": TokenType.BACKSLASH, + 421 "*": TokenType.STAR, + 422 "~": TokenType.TILDA, + 423 "?": TokenType.PLACEHOLDER, + 424 "@": TokenType.PARAMETER, + 425 # used for breaking a var like x'y' but nothing else + 426 # the token type doesn't matter + 427 "'": TokenType.QUOTE, + 428 "`": TokenType.IDENTIFIER, + 429 '"': TokenType.IDENTIFIER, + 430 "#": TokenType.HASH, + 431 } 432 - 433 IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"'] + 433 QUOTES: t.List[t.Tuple[str, str] | str] = ["'"] 434 - 435 STRING_ESCAPES = ["'"] + 435 BIT_STRINGS: t.List[str | t.Tuple[str, str]] = [] 436 - 437 _STRING_ESCAPES: t.Set[str] = set() + 437 HEX_STRINGS: t.List[str | t.Tuple[str, str]] = [] 438 - 439 IDENTIFIER_ESCAPES = ['"'] + 439 BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = [] 440 - 441 _IDENTIFIER_ESCAPES: t.Set[str] = set() + 441 IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"'] 442 - 443 KEYWORDS = { - 444 **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")}, - 445 **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")}, - 446 "{{+": TokenType.BLOCK_START, - 447 "{{-": TokenType.BLOCK_START, - 448 "+}}": TokenType.BLOCK_END, - 449 "-}}": TokenType.BLOCK_END, - 450 "/*+": TokenType.HINT, - 451 "==": TokenType.EQ, - 452 "::": TokenType.DCOLON, - 453 "||": TokenType.DPIPE, - 454 ">=": TokenType.GTE, - 455 "<=": TokenType.LTE, - 456 "<>": TokenType.NEQ, - 457 "!=": TokenType.NEQ, - 458 "<=>": TokenType.NULLSAFE_EQ, - 459 "->": TokenType.ARROW, - 460 "->>": TokenType.DARROW, - 461 "=>": TokenType.FARROW, - 462 "#>": TokenType.HASH_ARROW, - 463 "#>>": TokenType.DHASH_ARROW, - 464 "<->": TokenType.LR_ARROW, - 465 "ALL": TokenType.ALL, - 466 "ALWAYS": TokenType.ALWAYS, - 467 "AND": TokenType.AND, - 468 "ANTI": TokenType.ANTI, - 469 "ANY": TokenType.ANY, - 470 "ASC": TokenType.ASC, - 471 "AS": TokenType.ALIAS, - 472 "AT TIME ZONE": TokenType.AT_TIME_ZONE, - 473 "AUTOINCREMENT": TokenType.AUTO_INCREMENT, - 474 "AUTO_INCREMENT": TokenType.AUTO_INCREMENT, - 475 "BEGIN": TokenType.BEGIN, - 476 "BETWEEN": TokenType.BETWEEN, - 477 "BOTH": TokenType.BOTH, - 478 "BUCKET": TokenType.BUCKET, - 479 "BY DEFAULT": TokenType.BY_DEFAULT, - 480 "CACHE": TokenType.CACHE, - 481 "UNCACHE": TokenType.UNCACHE, - 482 "CASE": TokenType.CASE, - 483 "CASCADE": TokenType.CASCADE, - 484 "CHARACTER SET": TokenType.CHARACTER_SET, - 485 "CLUSTER BY": TokenType.CLUSTER_BY, - 486 "COLLATE": TokenType.COLLATE, - 487 "COLUMN": TokenType.COLUMN, - 488 "COMMIT": TokenType.COMMIT, - 489 "COMPOUND": TokenType.COMPOUND, - 490 "CONSTRAINT": TokenType.CONSTRAINT, - 491 "CREATE": TokenType.CREATE, - 492 "CROSS": TokenType.CROSS, - 493 "CUBE": TokenType.CUBE, - 494 "CURRENT_DATE": TokenType.CURRENT_DATE, - 495 "CURRENT ROW": TokenType.CURRENT_ROW, - 496 "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP, - 497 "DATABASE": TokenType.DATABASE, - 498 "DEFAULT": TokenType.DEFAULT, - 499 "DELETE": TokenType.DELETE, - 500 "DESC": TokenType.DESC, - 501 "DESCRIBE": TokenType.DESCRIBE, - 502 "DISTINCT": TokenType.DISTINCT, - 503 "DISTINCT FROM": TokenType.DISTINCT_FROM, - 504 "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY, - 505 "DIV": TokenType.DIV, - 506 "DROP": TokenType.DROP, - 507 "ELSE": TokenType.ELSE, - 508 "END": TokenType.END, - 509 "ESCAPE": TokenType.ESCAPE, - 510 "EXCEPT": TokenType.EXCEPT, - 511 "EXECUTE": TokenType.EXECUTE, - 512 "EXISTS": TokenType.EXISTS, - 513 "FALSE": TokenType.FALSE, - 514 "FETCH": TokenType.FETCH, - 515 "FILTER": TokenType.FILTER, - 516 "FIRST": TokenType.FIRST, - 517 "FULL": TokenType.FULL, - 518 "FUNCTION": TokenType.FUNCTION, - 519 "FOLLOWING": TokenType.FOLLOWING, - 520 "FOR": TokenType.FOR, - 521 "FOREIGN KEY": TokenType.FOREIGN_KEY, - 522 "FORMAT": TokenType.FORMAT, - 523 "FROM": TokenType.FROM, - 524 "GLOB": TokenType.GLOB, - 525 "GROUP BY": TokenType.GROUP_BY, - 526 "GROUPING SETS": TokenType.GROUPING_SETS, - 527 "HAVING": TokenType.HAVING, - 528 "IF": TokenType.IF, - 529 "ILIKE": TokenType.ILIKE, - 530 "IGNORE NULLS": TokenType.IGNORE_NULLS, - 531 "IN": TokenType.IN, - 532 "INDEX": TokenType.INDEX, - 533 "INET": TokenType.INET, - 534 "INNER": TokenType.INNER, - 535 "INSERT": TokenType.INSERT, - 536 "INTERVAL": TokenType.INTERVAL, - 537 "INTERSECT": TokenType.INTERSECT, - 538 "INTO": TokenType.INTO, - 539 "IS": TokenType.IS, - 540 "ISNULL": TokenType.ISNULL, - 541 "JOIN": TokenType.JOIN, - 542 "LATERAL": TokenType.LATERAL, - 543 "LAZY": TokenType.LAZY, - 544 "LEADING": TokenType.LEADING, - 545 "LEFT": TokenType.LEFT, - 546 "LIKE": TokenType.LIKE, - 547 "LIMIT": TokenType.LIMIT, - 548 "LOAD DATA": TokenType.LOAD_DATA, - 549 "LOCAL": TokenType.LOCAL, - 550 "MATERIALIZED": TokenType.MATERIALIZED, - 551 "MERGE": TokenType.MERGE, - 552 "NATURAL": TokenType.NATURAL, - 553 "NEXT": TokenType.NEXT, - 554 "NO ACTION": TokenType.NO_ACTION, - 555 "NOT": TokenType.NOT, - 556 "NOTNULL": TokenType.NOTNULL, - 557 "NULL": TokenType.NULL, - 558 "NULLS FIRST": TokenType.NULLS_FIRST, - 559 "NULLS LAST": TokenType.NULLS_LAST, - 560 "OBJECT": TokenType.OBJECT, - 561 "OFFSET": TokenType.OFFSET, - 562 "ON": TokenType.ON, - 563 "ONLY": TokenType.ONLY, - 564 "OPTIONS": TokenType.OPTIONS, - 565 "OR": TokenType.OR, - 566 "ORDER BY": TokenType.ORDER_BY, - 567 "ORDINALITY": TokenType.ORDINALITY, - 568 "OUTER": TokenType.OUTER, - 569 "OUT OF": TokenType.OUT_OF, - 570 "OVER": TokenType.OVER, - 571 "OVERLAPS": TokenType.OVERLAPS, - 572 "OVERWRITE": TokenType.OVERWRITE, - 573 "PARTITION": TokenType.PARTITION, - 574 "PARTITION BY": TokenType.PARTITION_BY, - 575 "PARTITIONED BY": TokenType.PARTITION_BY, - 576 "PARTITIONED_BY": TokenType.PARTITION_BY, - 577 "PERCENT": TokenType.PERCENT, - 578 "PIVOT": TokenType.PIVOT, - 579 "PRECEDING": TokenType.PRECEDING, - 580 "PRIMARY KEY": TokenType.PRIMARY_KEY, - 581 "PROCEDURE": TokenType.PROCEDURE, - 582 "QUALIFY": TokenType.QUALIFY, - 583 "RANGE": TokenType.RANGE, - 584 "RECURSIVE": TokenType.RECURSIVE, - 585 "REGEXP": TokenType.RLIKE, - 586 "REPLACE": TokenType.REPLACE, - 587 "RESPECT NULLS": TokenType.RESPECT_NULLS, - 588 "REFERENCES": TokenType.REFERENCES, - 589 "RIGHT": TokenType.RIGHT, - 590 "RLIKE": TokenType.RLIKE, - 591 "ROLLBACK": TokenType.ROLLBACK, - 592 "ROLLUP": TokenType.ROLLUP, - 593 "ROW": TokenType.ROW, - 594 "ROWS": TokenType.ROWS, - 595 "SCHEMA": TokenType.SCHEMA, - 596 "SEED": TokenType.SEED, - 597 "SELECT": TokenType.SELECT, - 598 "SEMI": TokenType.SEMI, - 599 "SET": TokenType.SET, - 600 "SHOW": TokenType.SHOW, - 601 "SIMILAR TO": TokenType.SIMILAR_TO, - 602 "SOME": TokenType.SOME, - 603 "SORTKEY": TokenType.SORTKEY, - 604 "SORT BY": TokenType.SORT_BY, - 605 "TABLE": TokenType.TABLE, - 606 "TABLESAMPLE": TokenType.TABLE_SAMPLE, - 607 "TEMP": TokenType.TEMPORARY, - 608 "TEMPORARY": TokenType.TEMPORARY, - 609 "THEN": TokenType.THEN, - 610 "TRUE": TokenType.TRUE, - 611 "TRAILING": TokenType.TRAILING, - 612 "UNBOUNDED": TokenType.UNBOUNDED, - 613 "UNION": TokenType.UNION, - 614 "UNLOGGED": TokenType.UNLOGGED, - 615 "UNNEST": TokenType.UNNEST, - 616 "UNPIVOT": TokenType.UNPIVOT, - 617 "UPDATE": TokenType.UPDATE, - 618 "USE": TokenType.USE, - 619 "USING": TokenType.USING, - 620 "VALUES": TokenType.VALUES, - 621 "VIEW": TokenType.VIEW, - 622 "VOLATILE": TokenType.VOLATILE, - 623 "WHEN": TokenType.WHEN, - 624 "WHERE": TokenType.WHERE, - 625 "WINDOW": TokenType.WINDOW, - 626 "WITH": TokenType.WITH, - 627 "WITH TIME ZONE": TokenType.WITH_TIME_ZONE, - 628 "WITH LOCAL TIME ZONE": TokenType.WITH_LOCAL_TIME_ZONE, - 629 "WITHIN GROUP": TokenType.WITHIN_GROUP, - 630 "WITHOUT TIME ZONE": TokenType.WITHOUT_TIME_ZONE, - 631 "APPLY": TokenType.APPLY, - 632 "ARRAY": TokenType.ARRAY, - 633 "BOOL": TokenType.BOOLEAN, - 634 "BOOLEAN": TokenType.BOOLEAN, - 635 "BYTE": TokenType.TINYINT, - 636 "TINYINT": TokenType.TINYINT, - 637 "SHORT": TokenType.SMALLINT, - 638 "SMALLINT": TokenType.SMALLINT, - 639 "INT2": TokenType.SMALLINT, - 640 "INTEGER": TokenType.INT, - 641 "INT": TokenType.INT, - 642 "INT4": TokenType.INT, - 643 "LONG": TokenType.BIGINT, - 644 "BIGINT": TokenType.BIGINT, - 645 "INT8": TokenType.BIGINT, - 646 "DECIMAL": TokenType.DECIMAL, - 647 "MAP": TokenType.MAP, - 648 "NULLABLE": TokenType.NULLABLE, - 649 "NUMBER": TokenType.DECIMAL, - 650 "NUMERIC": TokenType.DECIMAL, - 651 "FIXED": TokenType.DECIMAL, - 652 "REAL": TokenType.FLOAT, - 653 "FLOAT": TokenType.FLOAT, - 654 "FLOAT4": TokenType.FLOAT, - 655 "FLOAT8": TokenType.DOUBLE, - 656 "DOUBLE": TokenType.DOUBLE, - 657 "DOUBLE PRECISION": TokenType.DOUBLE, - 658 "JSON": TokenType.JSON, - 659 "CHAR": TokenType.CHAR, - 660 "CHARACTER": TokenType.CHAR, - 661 "NCHAR": TokenType.NCHAR, - 662 "VARCHAR": TokenType.VARCHAR, - 663 "VARCHAR2": TokenType.VARCHAR, - 664 "NVARCHAR": TokenType.NVARCHAR, - 665 "NVARCHAR2": TokenType.NVARCHAR, - 666 "STR": TokenType.TEXT, - 667 "STRING": TokenType.TEXT, - 668 "TEXT": TokenType.TEXT, - 669 "CLOB": TokenType.TEXT, - 670 "LONGVARCHAR": TokenType.TEXT, - 671 "BINARY": TokenType.BINARY, - 672 "BLOB": TokenType.VARBINARY, - 673 "BYTEA": TokenType.VARBINARY, - 674 "VARBINARY": TokenType.VARBINARY, - 675 "TIME": TokenType.TIME, - 676 "TIMESTAMP": TokenType.TIMESTAMP, - 677 "TIMESTAMPTZ": TokenType.TIMESTAMPTZ, - 678 "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ, - 679 "DATE": TokenType.DATE, - 680 "DATETIME": TokenType.DATETIME, - 681 "UNIQUE": TokenType.UNIQUE, - 682 "STRUCT": TokenType.STRUCT, - 683 "VARIANT": TokenType.VARIANT, - 684 "ALTER": TokenType.ALTER, - 685 "ALTER AGGREGATE": TokenType.COMMAND, - 686 "ALTER DEFAULT": TokenType.COMMAND, - 687 "ALTER DOMAIN": TokenType.COMMAND, - 688 "ALTER ROLE": TokenType.COMMAND, - 689 "ALTER RULE": TokenType.COMMAND, - 690 "ALTER SEQUENCE": TokenType.COMMAND, - 691 "ALTER TYPE": TokenType.COMMAND, - 692 "ALTER USER": TokenType.COMMAND, - 693 "ALTER VIEW": TokenType.COMMAND, - 694 "ANALYZE": TokenType.COMMAND, - 695 "CALL": TokenType.COMMAND, - 696 "COMMENT": TokenType.COMMENT, - 697 "COPY": TokenType.COMMAND, - 698 "EXPLAIN": TokenType.COMMAND, - 699 "GRANT": TokenType.COMMAND, - 700 "OPTIMIZE": TokenType.COMMAND, - 701 "PREPARE": TokenType.COMMAND, - 702 "TRUNCATE": TokenType.COMMAND, - 703 "VACUUM": TokenType.COMMAND, - 704 } - 705 - 706 WHITE_SPACE: t.Dict[str, TokenType] = { - 707 " ": TokenType.SPACE, - 708 "\t": TokenType.SPACE, - 709 "\n": TokenType.BREAK, - 710 "\r": TokenType.BREAK, - 711 "\r\n": TokenType.BREAK, - 712 } - 713 - 714 COMMANDS = { - 715 TokenType.COMMAND, - 716 TokenType.EXECUTE, - 717 TokenType.FETCH, - 718 TokenType.SET, - 719 TokenType.SHOW, - 720 } - 721 - 722 COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN} + 443 STRING_ESCAPES = ["'"] + 444 + 445 _STRING_ESCAPES: t.Set[str] = set() + 446 + 447 IDENTIFIER_ESCAPES = ['"'] + 448 + 449 _IDENTIFIER_ESCAPES: t.Set[str] = set() + 450 + 451 KEYWORDS = { + 452 **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")}, + 453 **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")}, + 454 "{{+": TokenType.BLOCK_START, + 455 "{{-": TokenType.BLOCK_START, + 456 "+}}": TokenType.BLOCK_END, + 457 "-}}": TokenType.BLOCK_END, + 458 "/*+": TokenType.HINT, + 459 "==": TokenType.EQ, + 460 "::": TokenType.DCOLON, + 461 "||": TokenType.DPIPE, + 462 ">=": TokenType.GTE, + 463 "<=": TokenType.LTE, + 464 "<>": TokenType.NEQ, + 465 "!=": TokenType.NEQ, + 466 "<=>": TokenType.NULLSAFE_EQ, + 467 "->": TokenType.ARROW, + 468 "->>": TokenType.DARROW, + 469 "=>": TokenType.FARROW, + 470 "#>": TokenType.HASH_ARROW, + 471 "#>>": TokenType.DHASH_ARROW, + 472 "<->": TokenType.LR_ARROW, + 473 "&&": TokenType.DAMP, + 474 "ALL": TokenType.ALL, + 475 "ALWAYS": TokenType.ALWAYS, + 476 "AND": TokenType.AND, + 477 "ANTI": TokenType.ANTI, + 478 "ANY": TokenType.ANY, + 479 "ASC": TokenType.ASC, + 480 "AS": TokenType.ALIAS, + 481 "AT TIME ZONE": TokenType.AT_TIME_ZONE, + 482 "AUTOINCREMENT": TokenType.AUTO_INCREMENT, + 483 "AUTO_INCREMENT": TokenType.AUTO_INCREMENT, + 484 "BEGIN": TokenType.BEGIN, + 485 "BETWEEN": TokenType.BETWEEN, + 486 "BOTH": TokenType.BOTH, + 487 "BUCKET": TokenType.BUCKET, + 488 "BY DEFAULT": TokenType.BY_DEFAULT, + 489 "CACHE": TokenType.CACHE, + 490 "UNCACHE": TokenType.UNCACHE, + 491 "CASE": TokenType.CASE, + 492 "CASCADE": TokenType.CASCADE, + 493 "CHARACTER SET": TokenType.CHARACTER_SET, + 494 "CLUSTER BY": TokenType.CLUSTER_BY, + 495 "COLLATE": TokenType.COLLATE, + 496 "COLUMN": TokenType.COLUMN, + 497 "COMMIT": TokenType.COMMIT, + 498 "COMPOUND": TokenType.COMPOUND, + 499 "CONSTRAINT": TokenType.CONSTRAINT, + 500 "CREATE": TokenType.CREATE, + 501 "CROSS": TokenType.CROSS, + 502 "CUBE": TokenType.CUBE, + 503 "CURRENT_DATE": TokenType.CURRENT_DATE, + 504 "CURRENT ROW": TokenType.CURRENT_ROW, + 505 "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP, + 506 "DATABASE": TokenType.DATABASE, + 507 "DEFAULT": TokenType.DEFAULT, + 508 "DELETE": TokenType.DELETE, + 509 "DESC": TokenType.DESC, + 510 "DESCRIBE": TokenType.DESCRIBE, + 511 "DISTINCT": TokenType.DISTINCT, + 512 "DISTINCT FROM": TokenType.DISTINCT_FROM, + 513 "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY, + 514 "DIV": TokenType.DIV, + 515 "DROP": TokenType.DROP, + 516 "ELSE": TokenType.ELSE, + 517 "END": TokenType.END, + 518 "ESCAPE": TokenType.ESCAPE, + 519 "EXCEPT": TokenType.EXCEPT, + 520 "EXECUTE": TokenType.EXECUTE, + 521 "EXISTS": TokenType.EXISTS, + 522 "FALSE": TokenType.FALSE, + 523 "FETCH": TokenType.FETCH, + 524 "FILTER": TokenType.FILTER, + 525 "FIRST": TokenType.FIRST, + 526 "FULL": TokenType.FULL, + 527 "FUNCTION": TokenType.FUNCTION, + 528 "FOLLOWING": TokenType.FOLLOWING, + 529 "FOR": TokenType.FOR, + 530 "FOREIGN KEY": TokenType.FOREIGN_KEY, + 531 "FORMAT": TokenType.FORMAT, + 532 "FROM": TokenType.FROM, + 533 "GLOB": TokenType.GLOB, + 534 "GROUP BY": TokenType.GROUP_BY, + 535 "GROUPING SETS": TokenType.GROUPING_SETS, + 536 "HAVING": TokenType.HAVING, + 537 "IF": TokenType.IF, + 538 "ILIKE": TokenType.ILIKE, + 539 "IGNORE NULLS": TokenType.IGNORE_NULLS, + 540 "IN": TokenType.IN, + 541 "INDEX": TokenType.INDEX, + 542 "INET": TokenType.INET, + 543 "INNER": TokenType.INNER, + 544 "INSERT": TokenType.INSERT, + 545 "INTERVAL": TokenType.INTERVAL, + 546 "INTERSECT": TokenType.INTERSECT, + 547 "INTO": TokenType.INTO, + 548 "IS": TokenType.IS, + 549 "ISNULL": TokenType.ISNULL, + 550 "JOIN": TokenType.JOIN, + 551 "LATERAL": TokenType.LATERAL, + 552 "LAZY": TokenType.LAZY, + 553 "LEADING": TokenType.LEADING, + 554 "LEFT": TokenType.LEFT, + 555 "LIKE": TokenType.LIKE, + 556 "LIMIT": TokenType.LIMIT, + 557 "LOAD DATA": TokenType.LOAD_DATA, + 558 "LOCAL": TokenType.LOCAL, + 559 "MATERIALIZED": TokenType.MATERIALIZED, + 560 "MERGE": TokenType.MERGE, + 561 "NATURAL": TokenType.NATURAL, + 562 "NEXT": TokenType.NEXT, + 563 "NO ACTION": TokenType.NO_ACTION, + 564 "NOT": TokenType.NOT, + 565 "NOTNULL": TokenType.NOTNULL, + 566 "NULL": TokenType.NULL, + 567 "NULLS FIRST": TokenType.NULLS_FIRST, + 568 "NULLS LAST": TokenType.NULLS_LAST, + 569 "OBJECT": TokenType.OBJECT, + 570 "OFFSET": TokenType.OFFSET, + 571 "ON": TokenType.ON, + 572 "ONLY": TokenType.ONLY, + 573 "OPTIONS": TokenType.OPTIONS, + 574 "OR": TokenType.OR, + 575 "ORDER BY": TokenType.ORDER_BY, + 576 "ORDINALITY": TokenType.ORDINALITY, + 577 "OUTER": TokenType.OUTER, + 578 "OUT OF": TokenType.OUT_OF, + 579 "OVER": TokenType.OVER, + 580 "OVERLAPS": TokenType.OVERLAPS, + 581 "OVERWRITE": TokenType.OVERWRITE, + 582 "PARTITION": TokenType.PARTITION, + 583 "PARTITION BY": TokenType.PARTITION_BY, + 584 "PARTITIONED BY": TokenType.PARTITION_BY, + 585 "PARTITIONED_BY": TokenType.PARTITION_BY, + 586 "PERCENT": TokenType.PERCENT, + 587 "PIVOT": TokenType.PIVOT, + 588 "PRECEDING": TokenType.PRECEDING, + 589 "PRIMARY KEY": TokenType.PRIMARY_KEY, + 590 "PROCEDURE": TokenType.PROCEDURE, + 591 "QUALIFY": TokenType.QUALIFY, + 592 "RANGE": TokenType.RANGE, + 593 "RECURSIVE": TokenType.RECURSIVE, + 594 "REGEXP": TokenType.RLIKE, + 595 "REPLACE": TokenType.REPLACE, + 596 "RESPECT NULLS": TokenType.RESPECT_NULLS, + 597 "REFERENCES": TokenType.REFERENCES, + 598 "RIGHT": TokenType.RIGHT, + 599 "RLIKE": TokenType.RLIKE, + 600 "ROLLBACK": TokenType.ROLLBACK, + 601 "ROLLUP": TokenType.ROLLUP, + 602 "ROW": TokenType.ROW, + 603 "ROWS": TokenType.ROWS, + 604 "SCHEMA": TokenType.SCHEMA, + 605 "SEED": TokenType.SEED, + 606 "SELECT": TokenType.SELECT, + 607 "SEMI": TokenType.SEMI, + 608 "SET": TokenType.SET, + 609 "SHOW": TokenType.SHOW, + 610 "SIMILAR TO": TokenType.SIMILAR_TO, + 611 "SOME": TokenType.SOME, + 612 "SORTKEY": TokenType.SORTKEY, + 613 "SORT BY": TokenType.SORT_BY, + 614 "TABLE": TokenType.TABLE, + 615 "TABLESAMPLE": TokenType.TABLE_SAMPLE, + 616 "TEMP": TokenType.TEMPORARY, + 617 "TEMPORARY": TokenType.TEMPORARY, + 618 "THEN": TokenType.THEN, + 619 "TRUE": TokenType.TRUE, + 620 "TRAILING": TokenType.TRAILING, + 621 "UNBOUNDED": TokenType.UNBOUNDED, + 622 "UNION": TokenType.UNION, + 623 "UNLOGGED": TokenType.UNLOGGED, + 624 "UNNEST": TokenType.UNNEST, + 625 "UNPIVOT": TokenType.UNPIVOT, + 626 "UPDATE": TokenType.UPDATE, + 627 "USE": TokenType.USE, + 628 "USING": TokenType.USING, + 629 "VALUES": TokenType.VALUES, + 630 "VIEW": TokenType.VIEW, + 631 "VOLATILE": TokenType.VOLATILE, + 632 "WHEN": TokenType.WHEN, + 633 "WHERE": TokenType.WHERE, + 634 "WINDOW": TokenType.WINDOW, + 635 "WITH": TokenType.WITH, + 636 "WITH TIME ZONE": TokenType.WITH_TIME_ZONE, + 637 "WITH LOCAL TIME ZONE": TokenType.WITH_LOCAL_TIME_ZONE, + 638 "WITHIN GROUP": TokenType.WITHIN_GROUP, + 639 "WITHOUT TIME ZONE": TokenType.WITHOUT_TIME_ZONE, + 640 "APPLY": TokenType.APPLY, + 641 "ARRAY": TokenType.ARRAY, + 642 "BIT": TokenType.BIT, + 643 "BOOL": TokenType.BOOLEAN, + 644 "BOOLEAN": TokenType.BOOLEAN, + 645 "BYTE": TokenType.TINYINT, + 646 "TINYINT": TokenType.TINYINT, + 647 "SHORT": TokenType.SMALLINT, + 648 "SMALLINT": TokenType.SMALLINT, + 649 "INT2": TokenType.SMALLINT, + 650 "INTEGER": TokenType.INT, + 651 "INT": TokenType.INT, + 652 "INT4": TokenType.INT, + 653 "LONG": TokenType.BIGINT, + 654 "BIGINT": TokenType.BIGINT, + 655 "INT8": TokenType.BIGINT, + 656 "DECIMAL": TokenType.DECIMAL, + 657 "MAP": TokenType.MAP, + 658 "NULLABLE": TokenType.NULLABLE, + 659 "NUMBER": TokenType.DECIMAL, + 660 "NUMERIC": TokenType.DECIMAL, + 661 "FIXED": TokenType.DECIMAL, + 662 "REAL": TokenType.FLOAT, + 663 "FLOAT": TokenType.FLOAT, + 664 "FLOAT4": TokenType.FLOAT, + 665 "FLOAT8": TokenType.DOUBLE, + 666 "DOUBLE": TokenType.DOUBLE, + 667 "DOUBLE PRECISION": TokenType.DOUBLE, + 668 "JSON": TokenType.JSON, + 669 "CHAR": TokenType.CHAR, + 670 "CHARACTER": TokenType.CHAR, + 671 "NCHAR": TokenType.NCHAR, + 672 "VARCHAR": TokenType.VARCHAR, + 673 "VARCHAR2": TokenType.VARCHAR, + 674 "NVARCHAR": TokenType.NVARCHAR, + 675 "NVARCHAR2": TokenType.NVARCHAR, + 676 "STR": TokenType.TEXT, + 677 "STRING": TokenType.TEXT, + 678 "TEXT": TokenType.TEXT, + 679 "CLOB": TokenType.TEXT, + 680 "LONGVARCHAR": TokenType.TEXT, + 681 "BINARY": TokenType.BINARY, + 682 "BLOB": TokenType.VARBINARY, + 683 "BYTEA": TokenType.VARBINARY, + 684 "VARBINARY": TokenType.VARBINARY, + 685 "TIME": TokenType.TIME, + 686 "TIMESTAMP": TokenType.TIMESTAMP, + 687 "TIMESTAMPTZ": TokenType.TIMESTAMPTZ, + 688 "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ, + 689 "DATE": TokenType.DATE, + 690 "DATETIME": TokenType.DATETIME, + 691 "UNIQUE": TokenType.UNIQUE, + 692 "STRUCT": TokenType.STRUCT, + 693 "VARIANT": TokenType.VARIANT, + 694 "ALTER": TokenType.ALTER, + 695 "ALTER AGGREGATE": TokenType.COMMAND, + 696 "ALTER DEFAULT": TokenType.COMMAND, + 697 "ALTER DOMAIN": TokenType.COMMAND, + 698 "ALTER ROLE": TokenType.COMMAND, + 699 "ALTER RULE": TokenType.COMMAND, + 700 "ALTER SEQUENCE": TokenType.COMMAND, + 701 "ALTER TYPE": TokenType.COMMAND, + 702 "ALTER USER": TokenType.COMMAND, + 703 "ALTER VIEW": TokenType.COMMAND, + 704 "ANALYZE": TokenType.COMMAND, + 705 "CALL": TokenType.COMMAND, + 706 "COMMENT": TokenType.COMMENT, + 707 "COPY": TokenType.COMMAND, + 708 "EXPLAIN": TokenType.COMMAND, + 709 "GRANT": TokenType.COMMAND, + 710 "OPTIMIZE": TokenType.COMMAND, + 711 "PREPARE": TokenType.COMMAND, + 712 "TRUNCATE": TokenType.COMMAND, + 713 "VACUUM": TokenType.COMMAND, + 714 } + 715 + 716 WHITE_SPACE: t.Dict[str, TokenType] = { + 717 " ": TokenType.SPACE, + 718 "\t": TokenType.SPACE, + 719 "\n": TokenType.BREAK, + 720 "\r": TokenType.BREAK, + 721 "\r\n": TokenType.BREAK, + 722 } 723 - 724 # handle numeric literals like in hive (3L = BIGINT) - 725 NUMERIC_LITERALS: t.Dict[str, str] = {} - 726 ENCODE: t.Optional[str] = None - 727 - 728 COMMENTS = ["--", ("/*", "*/"), ("{#", "#}")] - 729 KEYWORD_TRIE = None # autofilled - 730 - 731 IDENTIFIER_CAN_START_WITH_DIGIT = False - 732 - 733 __slots__ = ( - 734 "sql", - 735 "size", - 736 "tokens", - 737 "_start", - 738 "_current", - 739 "_line", - 740 "_col", - 741 "_comments", - 742 "_char", - 743 "_end", - 744 "_peek", - 745 "_prev_token_line", - 746 "_prev_token_comments", - 747 "_prev_token_type", - 748 ) - 749 - 750 def __init__(self) -> None: - 751 self.reset() - 752 - 753 def reset(self) -> None: - 754 self.sql = "" - 755 self.size = 0 - 756 self.tokens: t.List[Token] = [] - 757 self._start = 0 - 758 self._current = 0 - 759 self._line = 1 - 760 self._col = 1 - 761 self._comments: t.List[str] = [] + 724 COMMANDS = { + 725 TokenType.COMMAND, + 726 TokenType.EXECUTE, + 727 TokenType.FETCH, + 728 TokenType.SET, + 729 TokenType.SHOW, + 730 } + 731 + 732 COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN} + 733 + 734 # handle numeric literals like in hive (3L = BIGINT) + 735 NUMERIC_LITERALS: t.Dict[str, str] = {} + 736 ENCODE: t.Optional[str] = None + 737 + 738 COMMENTS = ["--", ("/*", "*/"), ("{#", "#}")] + 739 KEYWORD_TRIE = None # autofilled + 740 + 741 IDENTIFIER_CAN_START_WITH_DIGIT = False + 742 + 743 __slots__ = ( + 744 "sql", + 745 "size", + 746 "tokens", + 747 "_start", + 748 "_current", + 749 "_line", + 750 "_col", + 751 "_comments", + 752 "_char", + 753 "_end", + 754 "_peek", + 755 "_prev_token_line", + 756 "_prev_token_comments", + 757 "_prev_token_type", + 758 ) + 759 + 760 def __init__(self) -> None: + 761 self.reset() 762 - 763 self._char = None - 764 self._end = None - 765 self._peek = None - 766 self._prev_token_line = -1 - 767 self._prev_token_comments: t.List[str] = [] - 768 self._prev_token_type = None - 769 - 770 def tokenize(self, sql: str) -> t.List[Token]: - 771 """Returns a list of tokens corresponding to the SQL string `sql`.""" - 772 self.reset() - 773 self.sql = sql - 774 self.size = len(sql) - 775 self._scan() - 776 return self.tokens - 777 - 778 def _scan(self, until: t.Optional[t.Callable] = None) -> None: - 779 while self.size and not self._end: - 780 self._start = self._current - 781 self._advance() - 782 - 783 if self._char is None: - 784 break - 785 - 786 if self._char not in self.WHITE_SPACE: - 787 if self._char.isdigit(): - 788 self._scan_number() - 789 elif self._char in self._IDENTIFIERS: - 790 self._scan_identifier(self._IDENTIFIERS[self._char]) - 791 else: - 792 self._scan_keywords() - 793 - 794 if until and until(): - 795 break - 796 - 797 def _chars(self, size: int) -> str: - 798 if size == 1: - 799 return self._char # type: ignore - 800 start = self._current - 1 - 801 end = start + size - 802 if end <= self.size: - 803 return self.sql[start:end] - 804 return "" - 805 - 806 def _line_break(self, char: t.Optional[str]) -> bool: - 807 return self.WHITE_SPACE.get(char) == TokenType.BREAK # type: ignore - 808 - 809 def _advance(self, i: int = 1) -> None: - 810 if self._line_break(self._char): - 811 self._set_new_line() - 812 - 813 self._col += i - 814 self._current += i - 815 self._end = self._current >= self.size # type: ignore - 816 self._char = self.sql[self._current - 1] # type: ignore - 817 self._peek = self.sql[self._current] if self._current < self.size else "" # type: ignore + 763 def reset(self) -> None: + 764 self.sql = "" + 765 self.size = 0 + 766 self.tokens: t.List[Token] = [] + 767 self._start = 0 + 768 self._current = 0 + 769 self._line = 1 + 770 self._col = 1 + 771 self._comments: t.List[str] = [] + 772 + 773 self._char = None + 774 self._end = None + 775 self._peek = None + 776 self._prev_token_line = -1 + 777 self._prev_token_comments: t.List[str] = [] + 778 self._prev_token_type = None + 779 + 780 def tokenize(self, sql: str) -> t.List[Token]: + 781 """Returns a list of tokens corresponding to the SQL string `sql`.""" + 782 self.reset() + 783 self.sql = sql + 784 self.size = len(sql) + 785 self._scan() + 786 return self.tokens + 787 + 788 def _scan(self, until: t.Optional[t.Callable] = None) -> None: + 789 while self.size and not self._end: + 790 self._start = self._current + 791 self._advance() + 792 + 793 if self._char is None: + 794 break + 795 + 796 if self._char not in self.WHITE_SPACE: + 797 if self._char.isdigit(): + 798 self._scan_number() + 799 elif self._char in self._IDENTIFIERS: + 800 self._scan_identifier(self._IDENTIFIERS[self._char]) + 801 else: + 802 self._scan_keywords() + 803 + 804 if until and until(): + 805 break + 806 + 807 def _chars(self, size: int) -> str: + 808 if size == 1: + 809 return self._char # type: ignore + 810 start = self._current - 1 + 811 end = start + size + 812 if end <= self.size: + 813 return self.sql[start:end] + 814 return "" + 815 + 816 def _line_break(self, char: t.Optional[str]) -> bool: + 817 return self.WHITE_SPACE.get(char) == TokenType.BREAK # type: ignore 818 - 819 def _set_new_line(self) -> None: - 820 self._col = 1 - 821 self._line += 1 + 819 def _advance(self, i: int = 1) -> None: + 820 if self._line_break(self._char): + 821 self._set_new_line() 822 - 823 @property - 824 def _text(self) -> str: - 825 return self.sql[self._start : self._current] - 826 - 827 def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None: - 828 self._prev_token_line = self._line - 829 self._prev_token_comments = self._comments - 830 self._prev_token_type = token_type # type: ignore - 831 self.tokens.append( - 832 Token( - 833 token_type, - 834 self._text if text is None else text, - 835 self._line, - 836 self._col, - 837 self._comments, - 838 ) - 839 ) - 840 self._comments = [] - 841 - 842 # If we have either a semicolon or a begin token before the command's token, we'll parse - 843 # whatever follows the command's token as a string - 844 if token_type in self.COMMANDS and ( - 845 len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS - 846 ): - 847 start = self._current - 848 tokens = len(self.tokens) - 849 self._scan(lambda: self._peek == ";") - 850 self.tokens = self.tokens[:tokens] - 851 text = self.sql[start : self._current].strip() - 852 if text: - 853 self._add(TokenType.STRING, text) - 854 - 855 def _scan_keywords(self) -> None: - 856 size = 0 - 857 word = None - 858 chars: t.Optional[str] = self._text - 859 char = chars - 860 prev_space = False - 861 skip = False - 862 trie = self.KEYWORD_TRIE - 863 - 864 while chars: - 865 if skip: - 866 result = 1 - 867 else: - 868 result, trie = in_trie(trie, char.upper()) # type: ignore - 869 - 870 if result == 0: - 871 break - 872 if result == 2: - 873 word = chars - 874 size += 1 - 875 end = self._current - 1 + size - 876 - 877 if end < self.size: - 878 char = self.sql[end] - 879 is_space = char in self.WHITE_SPACE + 823 self._col += i + 824 self._current += i + 825 self._end = self._current >= self.size # type: ignore + 826 self._char = self.sql[self._current - 1] # type: ignore + 827 self._peek = self.sql[self._current] if self._current < self.size else "" # type: ignore + 828 + 829 def _set_new_line(self) -> None: + 830 self._col = 1 + 831 self._line += 1 + 832 + 833 @property + 834 def _text(self) -> str: + 835 return self.sql[self._start : self._current] + 836 + 837 def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None: + 838 self._prev_token_line = self._line + 839 self._prev_token_comments = self._comments + 840 self._prev_token_type = token_type # type: ignore + 841 self.tokens.append( + 842 Token( + 843 token_type, + 844 self._text if text is None else text, + 845 self._line, + 846 self._col, + 847 self._comments, + 848 ) + 849 ) + 850 self._comments = [] + 851 + 852 # If we have either a semicolon or a begin token before the command's token, we'll parse + 853 # whatever follows the command's token as a string + 854 if token_type in self.COMMANDS and ( + 855 len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS + 856 ): + 857 start = self._current + 858 tokens = len(self.tokens) + 859 self._scan(lambda: self._peek == ";") + 860 self.tokens = self.tokens[:tokens] + 861 text = self.sql[start : self._current].strip() + 862 if text: + 863 self._add(TokenType.STRING, text) + 864 + 865 def _scan_keywords(self) -> None: + 866 size = 0 + 867 word = None + 868 chars = self._text + 869 char = chars + 870 prev_space = False + 871 skip = False + 872 trie = self.KEYWORD_TRIE + 873 single_token = char in self.SINGLE_TOKENS + 874 + 875 while chars: + 876 if skip: + 877 result = 1 + 878 else: + 879 result, trie = in_trie(trie, char.upper()) # type: ignore 880 - 881 if not is_space or not prev_space: - 882 if is_space: - 883 char = " " - 884 chars += char - 885 prev_space = is_space - 886 skip = False - 887 else: - 888 skip = True - 889 else: - 890 chars = None - 891 - 892 if not word: - 893 if self._char in self.SINGLE_TOKENS: - 894 self._add(self.SINGLE_TOKENS[self._char]) # type: ignore - 895 return - 896 self._scan_var() - 897 return - 898 - 899 if self._scan_string(word): - 900 return - 901 if self._scan_formatted_string(word): - 902 return - 903 if self._scan_comment(word): - 904 return + 881 if result == 0: + 882 break + 883 if result == 2: + 884 word = chars + 885 size += 1 + 886 end = self._current - 1 + size + 887 + 888 if end < self.size: + 889 char = self.sql[end] + 890 single_token = single_token or char in self.SINGLE_TOKENS + 891 is_space = char in self.WHITE_SPACE + 892 + 893 if not is_space or not prev_space: + 894 if is_space: + 895 char = " " + 896 chars += char + 897 prev_space = is_space + 898 skip = False + 899 else: + 900 skip = True + 901 else: + 902 chars = " " + 903 + 904 word = None if not single_token and chars[-1] not in self.WHITE_SPACE else word 905 - 906 self._advance(size - 1) - 907 self._add(self.KEYWORDS[word.upper()]) - 908 - 909 def _scan_comment(self, comment_start: str) -> bool: - 910 if comment_start not in self._COMMENTS: # type: ignore - 911 return False + 906 if not word: + 907 if self._char in self.SINGLE_TOKENS: + 908 self._add(self.SINGLE_TOKENS[self._char]) # type: ignore + 909 return + 910 self._scan_var() + 911 return 912 - 913 comment_start_line = self._line - 914 comment_start_size = len(comment_start) - 915 comment_end = self._COMMENTS[comment_start] # type: ignore - 916 - 917 if comment_end: - 918 comment_end_size = len(comment_end) + 913 if self._scan_string(word): + 914 return + 915 if self._scan_formatted_string(word): + 916 return + 917 if self._scan_comment(word): + 918 return 919 - 920 while not self._end and self._chars(comment_end_size) != comment_end: - 921 self._advance() + 920 self._advance(size - 1) + 921 self._add(self.KEYWORDS[word.upper()]) 922 - 923 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) # type: ignore - 924 self._advance(comment_end_size - 1) - 925 else: - 926 while not self._end and not self._line_break(self._peek): - 927 self._advance() - 928 self._comments.append(self._text[comment_start_size:]) # type: ignore - 929 - 930 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. - 931 # Multiple consecutive comments are preserved by appending them to the current comments list. - 932 if comment_start_line == self._prev_token_line: - 933 self.tokens[-1].comments.extend(self._comments) - 934 self._comments = [] - 935 self._prev_token_line = self._line + 923 def _scan_comment(self, comment_start: str) -> bool: + 924 if comment_start not in self._COMMENTS: # type: ignore + 925 return False + 926 + 927 comment_start_line = self._line + 928 comment_start_size = len(comment_start) + 929 comment_end = self._COMMENTS[comment_start] # type: ignore + 930 + 931 if comment_end: + 932 comment_end_size = len(comment_end) + 933 + 934 while not self._end and self._chars(comment_end_size) != comment_end: + 935 self._advance() 936 - 937 return True - 938 - 939 def _scan_number(self) -> None: - 940 if self._char == "0": - 941 peek = self._peek.upper() # type: ignore - 942 if peek == "B": - 943 return self._scan_bits() - 944 elif peek == "X": - 945 return self._scan_hex() - 946 - 947 decimal = False - 948 scientific = 0 - 949 - 950 while True: - 951 if self._peek.isdigit(): # type: ignore - 952 self._advance() - 953 elif self._peek == "." and not decimal: - 954 decimal = True - 955 self._advance() - 956 elif self._peek in ("-", "+") and scientific == 1: - 957 scientific += 1 - 958 self._advance() - 959 elif self._peek.upper() == "E" and not scientific: # type: ignore - 960 scientific += 1 - 961 self._advance() - 962 elif self._peek.isidentifier(): # type: ignore - 963 number_text = self._text - 964 literal = [] - 965 - 966 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: # type: ignore - 967 literal.append(self._peek.upper()) # type: ignore - 968 self._advance() - 969 - 970 literal = "".join(literal) # type: ignore - 971 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal)) # type: ignore - 972 - 973 if token_type: - 974 self._add(TokenType.NUMBER, number_text) - 975 self._add(TokenType.DCOLON, "::") - 976 return self._add(token_type, literal) # type: ignore - 977 elif self.IDENTIFIER_CAN_START_WITH_DIGIT: - 978 return self._add(TokenType.VAR) + 937 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) # type: ignore + 938 self._advance(comment_end_size - 1) + 939 else: + 940 while not self._end and not self._line_break(self._peek): + 941 self._advance() + 942 self._comments.append(self._text[comment_start_size:]) # type: ignore + 943 + 944 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. + 945 # Multiple consecutive comments are preserved by appending them to the current comments list. + 946 if comment_start_line == self._prev_token_line: + 947 self.tokens[-1].comments.extend(self._comments) + 948 self._comments = [] + 949 self._prev_token_line = self._line + 950 + 951 return True + 952 + 953 def _scan_number(self) -> None: + 954 if self._char == "0": + 955 peek = self._peek.upper() # type: ignore + 956 if peek == "B": + 957 return self._scan_bits() + 958 elif peek == "X": + 959 return self._scan_hex() + 960 + 961 decimal = False + 962 scientific = 0 + 963 + 964 while True: + 965 if self._peek.isdigit(): # type: ignore + 966 self._advance() + 967 elif self._peek == "." and not decimal: + 968 decimal = True + 969 self._advance() + 970 elif self._peek in ("-", "+") and scientific == 1: + 971 scientific += 1 + 972 self._advance() + 973 elif self._peek.upper() == "E" and not scientific: # type: ignore + 974 scientific += 1 + 975 self._advance() + 976 elif self._peek.isidentifier(): # type: ignore + 977 number_text = self._text + 978 literal = [] 979 - 980 self._add(TokenType.NUMBER, number_text) - 981 return self._advance(-len(literal)) - 982 else: - 983 return self._add(TokenType.NUMBER) - 984 - 985 def _scan_bits(self) -> None: - 986 self._advance() - 987 value = self._extract_value() - 988 try: - 989 self._add(TokenType.BIT_STRING, f"{int(value, 2)}") - 990 except ValueError: - 991 self._add(TokenType.IDENTIFIER) - 992 - 993 def _scan_hex(self) -> None: - 994 self._advance() - 995 value = self._extract_value() - 996 try: - 997 self._add(TokenType.HEX_STRING, f"{int(value, 16)}") - 998 except ValueError: - 999 self._add(TokenType.IDENTIFIER) -1000 -1001 def _extract_value(self) -> str: -1002 while True: -1003 char = self._peek.strip() # type: ignore -1004 if char and char not in self.SINGLE_TOKENS: -1005 self._advance() -1006 else: -1007 break -1008 -1009 return self._text -1010 -1011 def _scan_string(self, quote: str) -> bool: -1012 quote_end = self._QUOTES.get(quote) # type: ignore -1013 if quote_end is None: -1014 return False -1015 -1016 self._advance(len(quote)) -1017 text = self._extract_string(quote_end) -1018 text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text # type: ignore -1019 self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text) -1020 return True -1021 -1022 # X'1234, b'0110', E'\\\\\' etc. -1023 def _scan_formatted_string(self, string_start: str) -> bool: -1024 if string_start in self._HEX_STRINGS: # type: ignore -1025 delimiters = self._HEX_STRINGS # type: ignore -1026 token_type = TokenType.HEX_STRING -1027 base = 16 -1028 elif string_start in self._BIT_STRINGS: # type: ignore -1029 delimiters = self._BIT_STRINGS # type: ignore -1030 token_type = TokenType.BIT_STRING -1031 base = 2 -1032 elif string_start in self._BYTE_STRINGS: # type: ignore -1033 delimiters = self._BYTE_STRINGS # type: ignore -1034 token_type = TokenType.BYTE_STRING -1035 base = None -1036 else: -1037 return False -1038 -1039 self._advance(len(string_start)) -1040 string_end = delimiters.get(string_start) -1041 text = self._extract_string(string_end) -1042 -1043 if base is None: -1044 self._add(token_type, text) -1045 else: -1046 try: -1047 self._add(token_type, f"{int(text, base)}") -1048 except: -1049 raise RuntimeError( -1050 f"Numeric string contains invalid characters from {self._line}:{self._start}" -1051 ) + 980 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: # type: ignore + 981 literal.append(self._peek.upper()) # type: ignore + 982 self._advance() + 983 + 984 literal = "".join(literal) # type: ignore + 985 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal)) # type: ignore + 986 + 987 if token_type: + 988 self._add(TokenType.NUMBER, number_text) + 989 self._add(TokenType.DCOLON, "::") + 990 return self._add(token_type, literal) # type: ignore + 991 elif self.IDENTIFIER_CAN_START_WITH_DIGIT: + 992 return self._add(TokenType.VAR) + 993 + 994 self._add(TokenType.NUMBER, number_text) + 995 return self._advance(-len(literal)) + 996 else: + 997 return self._add(TokenType.NUMBER) + 998 + 999 def _scan_bits(self) -> None: +1000 self._advance() +1001 value = self._extract_value() +1002 try: +1003 self._add(TokenType.BIT_STRING, f"{int(value, 2)}") +1004 except ValueError: +1005 self._add(TokenType.IDENTIFIER) +1006 +1007 def _scan_hex(self) -> None: +1008 self._advance() +1009 value = self._extract_value() +1010 try: +1011 self._add(TokenType.HEX_STRING, f"{int(value, 16)}") +1012 except ValueError: +1013 self._add(TokenType.IDENTIFIER) +1014 +1015 def _extract_value(self) -> str: +1016 while True: +1017 char = self._peek.strip() # type: ignore +1018 if char and char not in self.SINGLE_TOKENS: +1019 self._advance() +1020 else: +1021 break +1022 +1023 return self._text +1024 +1025 def _scan_string(self, quote: str) -> bool: +1026 quote_end = self._QUOTES.get(quote) # type: ignore +1027 if quote_end is None: +1028 return False +1029 +1030 self._advance(len(quote)) +1031 text = self._extract_string(quote_end) +1032 text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text # type: ignore +1033 self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text) +1034 return True +1035 +1036 # X'1234, b'0110', E'\\\\\' etc. +1037 def _scan_formatted_string(self, string_start: str) -> bool: +1038 if string_start in self._HEX_STRINGS: # type: ignore +1039 delimiters = self._HEX_STRINGS # type: ignore +1040 token_type = TokenType.HEX_STRING +1041 base = 16 +1042 elif string_start in self._BIT_STRINGS: # type: ignore +1043 delimiters = self._BIT_STRINGS # type: ignore +1044 token_type = TokenType.BIT_STRING +1045 base = 2 +1046 elif string_start in self._BYTE_STRINGS: # type: ignore +1047 delimiters = self._BYTE_STRINGS # type: ignore +1048 token_type = TokenType.BYTE_STRING +1049 base = None +1050 else: +1051 return False 1052 -1053 return True -1054 -1055 def _scan_identifier(self, identifier_end: str) -> None: -1056 text = "" -1057 identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES -1058 -1059 while True: -1060 if self._end: -1061 raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}") -1062 -1063 self._advance() -1064 if self._char == identifier_end: -1065 if identifier_end_is_escape and self._peek == identifier_end: -1066 text += identifier_end # type: ignore -1067 self._advance() -1068 continue -1069 -1070 break -1071 -1072 text += self._char # type: ignore -1073 -1074 self._add(TokenType.IDENTIFIER, text) -1075 -1076 def _scan_var(self) -> None: -1077 while True: -1078 char = self._peek.strip() # type: ignore -1079 if char and char not in self.SINGLE_TOKENS: -1080 self._advance() -1081 else: -1082 break -1083 self._add( -1084 TokenType.VAR -1085 if self._prev_token_type == TokenType.PARAMETER -1086 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) -1087 ) -1088 -1089 def _extract_string(self, delimiter: str) -> str: -1090 text = "" -1091 delim_size = len(delimiter) -1092 -1093 while True: -1094 if self._char in self._STRING_ESCAPES and ( -1095 self._peek == delimiter or self._peek in self._STRING_ESCAPES -1096 ): -1097 if self._peek == delimiter: -1098 text += self._peek # type: ignore -1099 else: -1100 text += self._char + self._peek # type: ignore -1101 -1102 if self._current + 1 < self.size: -1103 self._advance(2) -1104 else: -1105 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}") -1106 else: -1107 if self._chars(delim_size) == delimiter: -1108 if delim_size > 1: -1109 self._advance(delim_size - 1) -1110 break -1111 -1112 if self._end: -1113 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}") -1114 text += self._char # type: ignore -1115 self._advance() -1116 -1117 return text +1053 self._advance(len(string_start)) +1054 string_end = delimiters.get(string_start) +1055 text = self._extract_string(string_end) +1056 +1057 if base is None: +1058 self._add(token_type, text) +1059 else: +1060 try: +1061 self._add(token_type, f"{int(text, base)}") +1062 except: +1063 raise RuntimeError( +1064 f"Numeric string contains invalid characters from {self._line}:{self._start}" +1065 ) +1066 +1067 return True +1068 +1069 def _scan_identifier(self, identifier_end: str) -> None: +1070 text = "" +1071 identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES +1072 +1073 while True: +1074 if self._end: +1075 raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}") +1076 +1077 self._advance() +1078 if self._char == identifier_end: +1079 if identifier_end_is_escape and self._peek == identifier_end: +1080 text += identifier_end # type: ignore +1081 self._advance() +1082 continue +1083 +1084 break +1085 +1086 text += self._char # type: ignore +1087 +1088 self._add(TokenType.IDENTIFIER, text) +1089 +1090 def _scan_var(self) -> None: +1091 while True: +1092 char = self._peek.strip() # type: ignore +1093 if char and char not in self.SINGLE_TOKENS: +1094 self._advance() +1095 else: +1096 break +1097 self._add( +1098 TokenType.VAR +1099 if self._prev_token_type == TokenType.PARAMETER +1100 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) +1101 ) +1102 +1103 def _extract_string(self, delimiter: str) -> str: +1104 text = "" +1105 delim_size = len(delimiter) +1106 +1107 while True: +1108 if self._char in self._STRING_ESCAPES and ( +1109 self._peek == delimiter or self._peek in self._STRING_ESCAPES +1110 ): +1111 if self._peek == delimiter: +1112 text += self._peek # type: ignore +1113 else: +1114 text += self._char + self._peek # type: ignore +1115 +1116 if self._current + 1 < self.size: +1117 self._advance(2) +1118 else: +1119 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}") +1120 else: +1121 if self._chars(delim_size) == delimiter: +1122 if delim_size > 1: +1123 self._advance(delim_size - 1) +1124 break +1125 +1126 if self._end: +1127 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}") +1128 text += self._char # type: ignore +1129 self._advance() +1130 +1131 return text
    @@ -2124,262 +2162,270 @@ 47 HASH_ARROW = auto() 48 DHASH_ARROW = auto() 49 LR_ARROW = auto() - 50 DOLLAR = auto() - 51 PARAMETER = auto() - 52 SESSION_PARAMETER = auto() - 53 NATIONAL = auto() - 54 - 55 BLOCK_START = auto() - 56 BLOCK_END = auto() + 50 LT_AT = auto() + 51 AT_GT = auto() + 52 DOLLAR = auto() + 53 PARAMETER = auto() + 54 SESSION_PARAMETER = auto() + 55 NATIONAL = auto() + 56 DAMP = auto() 57 - 58 SPACE = auto() - 59 BREAK = auto() + 58 BLOCK_START = auto() + 59 BLOCK_END = auto() 60 - 61 STRING = auto() - 62 NUMBER = auto() - 63 IDENTIFIER = auto() - 64 DATABASE = auto() - 65 COLUMN = auto() - 66 COLUMN_DEF = auto() - 67 SCHEMA = auto() - 68 TABLE = auto() - 69 VAR = auto() - 70 BIT_STRING = auto() - 71 HEX_STRING = auto() - 72 BYTE_STRING = auto() - 73 - 74 # types - 75 BOOLEAN = auto() - 76 TINYINT = auto() - 77 SMALLINT = auto() - 78 INT = auto() - 79 BIGINT = auto() - 80 FLOAT = auto() - 81 DOUBLE = auto() - 82 DECIMAL = auto() - 83 CHAR = auto() - 84 NCHAR = auto() - 85 VARCHAR = auto() - 86 NVARCHAR = auto() - 87 TEXT = auto() - 88 MEDIUMTEXT = auto() - 89 LONGTEXT = auto() - 90 MEDIUMBLOB = auto() - 91 LONGBLOB = auto() - 92 BINARY = auto() - 93 VARBINARY = auto() - 94 JSON = auto() - 95 JSONB = auto() - 96 TIME = auto() - 97 TIMESTAMP = auto() - 98 TIMESTAMPTZ = auto() - 99 TIMESTAMPLTZ = auto() -100 DATETIME = auto() -101 DATE = auto() -102 UUID = auto() -103 GEOGRAPHY = auto() -104 NULLABLE = auto() -105 GEOMETRY = auto() -106 HLLSKETCH = auto() -107 HSTORE = auto() -108 SUPER = auto() -109 SERIAL = auto() -110 SMALLSERIAL = auto() -111 BIGSERIAL = auto() -112 XML = auto() -113 UNIQUEIDENTIFIER = auto() -114 MONEY = auto() -115 SMALLMONEY = auto() -116 ROWVERSION = auto() -117 IMAGE = auto() -118 VARIANT = auto() -119 OBJECT = auto() -120 INET = auto() -121 -122 # keywords -123 ALIAS = auto() -124 ALTER = auto() -125 ALWAYS = auto() -126 ALL = auto() -127 ANTI = auto() -128 ANY = auto() -129 APPLY = auto() -130 ARRAY = auto() -131 ASC = auto() -132 ASOF = auto() -133 AT_TIME_ZONE = auto() -134 AUTO_INCREMENT = auto() -135 BEGIN = auto() -136 BETWEEN = auto() -137 BOTH = auto() -138 BUCKET = auto() -139 BY_DEFAULT = auto() -140 CACHE = auto() -141 CASCADE = auto() -142 CASE = auto() -143 CHARACTER_SET = auto() -144 CLUSTER_BY = auto() -145 COLLATE = auto() -146 COMMAND = auto() -147 COMMENT = auto() -148 COMMIT = auto() -149 COMPOUND = auto() -150 CONSTRAINT = auto() -151 CREATE = auto() -152 CROSS = auto() -153 CUBE = auto() -154 CURRENT_DATE = auto() -155 CURRENT_DATETIME = auto() -156 CURRENT_ROW = auto() -157 CURRENT_TIME = auto() -158 CURRENT_TIMESTAMP = auto() -159 DEFAULT = auto() -160 DELETE = auto() -161 DESC = auto() -162 DESCRIBE = auto() -163 DISTINCT = auto() -164 DISTINCT_FROM = auto() -165 DISTRIBUTE_BY = auto() -166 DIV = auto() -167 DROP = auto() -168 ELSE = auto() -169 END = auto() -170 ESCAPE = auto() -171 EXCEPT = auto() -172 EXECUTE = auto() -173 EXISTS = auto() -174 FALSE = auto() -175 FETCH = auto() -176 FILTER = auto() -177 FINAL = auto() -178 FIRST = auto() -179 FOLLOWING = auto() -180 FOR = auto() -181 FOREIGN_KEY = auto() -182 FORMAT = auto() -183 FROM = auto() -184 FULL = auto() -185 FUNCTION = auto() -186 GLOB = auto() -187 GLOBAL = auto() -188 GROUP_BY = auto() -189 GROUPING_SETS = auto() -190 HAVING = auto() -191 HINT = auto() -192 IF = auto() -193 IGNORE_NULLS = auto() -194 ILIKE = auto() -195 ILIKE_ANY = auto() -196 IN = auto() -197 INDEX = auto() -198 INNER = auto() -199 INSERT = auto() -200 INTERSECT = auto() -201 INTERVAL = auto() -202 INTO = auto() -203 INTRODUCER = auto() -204 IRLIKE = auto() -205 IS = auto() -206 ISNULL = auto() -207 JOIN = auto() -208 JOIN_MARKER = auto() -209 LANGUAGE = auto() -210 LATERAL = auto() -211 LAZY = auto() -212 LEADING = auto() -213 LEFT = auto() -214 LIKE = auto() -215 LIKE_ANY = auto() -216 LIMIT = auto() -217 LOAD_DATA = auto() -218 LOCAL = auto() -219 MAP = auto() -220 MATCH_RECOGNIZE = auto() -221 MATERIALIZED = auto() -222 MERGE = auto() -223 MOD = auto() -224 NATURAL = auto() -225 NEXT = auto() -226 NO_ACTION = auto() -227 NOTNULL = auto() -228 NULL = auto() -229 NULLS_FIRST = auto() -230 NULLS_LAST = auto() -231 OFFSET = auto() -232 ON = auto() -233 ONLY = auto() -234 OPTIONS = auto() -235 ORDER_BY = auto() -236 ORDERED = auto() -237 ORDINALITY = auto() -238 OUTER = auto() -239 OUT_OF = auto() -240 OVER = auto() -241 OVERLAPS = auto() -242 OVERWRITE = auto() -243 PARTITION = auto() -244 PARTITION_BY = auto() -245 PERCENT = auto() -246 PIVOT = auto() -247 PLACEHOLDER = auto() -248 PRECEDING = auto() -249 PRIMARY_KEY = auto() -250 PROCEDURE = auto() -251 PROPERTIES = auto() -252 PSEUDO_TYPE = auto() -253 QUALIFY = auto() -254 QUOTE = auto() -255 RANGE = auto() -256 RECURSIVE = auto() -257 REPLACE = auto() -258 RESPECT_NULLS = auto() -259 RETURNING = auto() -260 REFERENCES = auto() -261 RIGHT = auto() -262 RLIKE = auto() -263 ROLLBACK = auto() -264 ROLLUP = auto() -265 ROW = auto() -266 ROWS = auto() -267 SEED = auto() -268 SELECT = auto() -269 SEMI = auto() -270 SEPARATOR = auto() -271 SERDE_PROPERTIES = auto() -272 SET = auto() -273 SHOW = auto() -274 SIMILAR_TO = auto() -275 SOME = auto() -276 SORTKEY = auto() -277 SORT_BY = auto() -278 STRUCT = auto() -279 TABLE_SAMPLE = auto() -280 TEMPORARY = auto() -281 TOP = auto() -282 THEN = auto() -283 TRAILING = auto() -284 TRUE = auto() -285 UNBOUNDED = auto() -286 UNCACHE = auto() -287 UNION = auto() -288 UNLOGGED = auto() -289 UNNEST = auto() -290 UNPIVOT = auto() -291 UPDATE = auto() -292 USE = auto() -293 USING = auto() -294 VALUES = auto() -295 VIEW = auto() -296 VOLATILE = auto() -297 WHEN = auto() -298 WHERE = auto() -299 WINDOW = auto() -300 WITH = auto() -301 WITH_TIME_ZONE = auto() -302 WITH_LOCAL_TIME_ZONE = auto() -303 WITHIN_GROUP = auto() -304 WITHOUT_TIME_ZONE = auto() -305 UNIQUE = auto() + 61 SPACE = auto() + 62 BREAK = auto() + 63 + 64 STRING = auto() + 65 NUMBER = auto() + 66 IDENTIFIER = auto() + 67 DATABASE = auto() + 68 COLUMN = auto() + 69 COLUMN_DEF = auto() + 70 SCHEMA = auto() + 71 TABLE = auto() + 72 VAR = auto() + 73 BIT_STRING = auto() + 74 HEX_STRING = auto() + 75 BYTE_STRING = auto() + 76 + 77 # types + 78 BIT = auto() + 79 BOOLEAN = auto() + 80 TINYINT = auto() + 81 UTINYINT = auto() + 82 SMALLINT = auto() + 83 USMALLINT = auto() + 84 INT = auto() + 85 UINT = auto() + 86 BIGINT = auto() + 87 UBIGINT = auto() + 88 FLOAT = auto() + 89 DOUBLE = auto() + 90 DECIMAL = auto() + 91 CHAR = auto() + 92 NCHAR = auto() + 93 VARCHAR = auto() + 94 NVARCHAR = auto() + 95 TEXT = auto() + 96 MEDIUMTEXT = auto() + 97 LONGTEXT = auto() + 98 MEDIUMBLOB = auto() + 99 LONGBLOB = auto() +100 BINARY = auto() +101 VARBINARY = auto() +102 JSON = auto() +103 JSONB = auto() +104 TIME = auto() +105 TIMESTAMP = auto() +106 TIMESTAMPTZ = auto() +107 TIMESTAMPLTZ = auto() +108 DATETIME = auto() +109 DATE = auto() +110 UUID = auto() +111 GEOGRAPHY = auto() +112 NULLABLE = auto() +113 GEOMETRY = auto() +114 HLLSKETCH = auto() +115 HSTORE = auto() +116 SUPER = auto() +117 SERIAL = auto() +118 SMALLSERIAL = auto() +119 BIGSERIAL = auto() +120 XML = auto() +121 UNIQUEIDENTIFIER = auto() +122 MONEY = auto() +123 SMALLMONEY = auto() +124 ROWVERSION = auto() +125 IMAGE = auto() +126 VARIANT = auto() +127 OBJECT = auto() +128 INET = auto() +129 +130 # keywords +131 ALIAS = auto() +132 ALTER = auto() +133 ALWAYS = auto() +134 ALL = auto() +135 ANTI = auto() +136 ANY = auto() +137 APPLY = auto() +138 ARRAY = auto() +139 ASC = auto() +140 ASOF = auto() +141 AT_TIME_ZONE = auto() +142 AUTO_INCREMENT = auto() +143 BEGIN = auto() +144 BETWEEN = auto() +145 BOTH = auto() +146 BUCKET = auto() +147 BY_DEFAULT = auto() +148 CACHE = auto() +149 CASCADE = auto() +150 CASE = auto() +151 CHARACTER_SET = auto() +152 CLUSTER_BY = auto() +153 COLLATE = auto() +154 COMMAND = auto() +155 COMMENT = auto() +156 COMMIT = auto() +157 COMPOUND = auto() +158 CONSTRAINT = auto() +159 CREATE = auto() +160 CROSS = auto() +161 CUBE = auto() +162 CURRENT_DATE = auto() +163 CURRENT_DATETIME = auto() +164 CURRENT_ROW = auto() +165 CURRENT_TIME = auto() +166 CURRENT_TIMESTAMP = auto() +167 DEFAULT = auto() +168 DELETE = auto() +169 DESC = auto() +170 DESCRIBE = auto() +171 DISTINCT = auto() +172 DISTINCT_FROM = auto() +173 DISTRIBUTE_BY = auto() +174 DIV = auto() +175 DROP = auto() +176 ELSE = auto() +177 END = auto() +178 ESCAPE = auto() +179 EXCEPT = auto() +180 EXECUTE = auto() +181 EXISTS = auto() +182 FALSE = auto() +183 FETCH = auto() +184 FILTER = auto() +185 FINAL = auto() +186 FIRST = auto() +187 FOLLOWING = auto() +188 FOR = auto() +189 FOREIGN_KEY = auto() +190 FORMAT = auto() +191 FROM = auto() +192 FULL = auto() +193 FUNCTION = auto() +194 GLOB = auto() +195 GLOBAL = auto() +196 GROUP_BY = auto() +197 GROUPING_SETS = auto() +198 HAVING = auto() +199 HINT = auto() +200 IF = auto() +201 IGNORE_NULLS = auto() +202 ILIKE = auto() +203 ILIKE_ANY = auto() +204 IN = auto() +205 INDEX = auto() +206 INNER = auto() +207 INSERT = auto() +208 INTERSECT = auto() +209 INTERVAL = auto() +210 INTO = auto() +211 INTRODUCER = auto() +212 IRLIKE = auto() +213 IS = auto() +214 ISNULL = auto() +215 JOIN = auto() +216 JOIN_MARKER = auto() +217 LANGUAGE = auto() +218 LATERAL = auto() +219 LAZY = auto() +220 LEADING = auto() +221 LEFT = auto() +222 LIKE = auto() +223 LIKE_ANY = auto() +224 LIMIT = auto() +225 LOAD_DATA = auto() +226 LOCAL = auto() +227 MAP = auto() +228 MATCH_RECOGNIZE = auto() +229 MATERIALIZED = auto() +230 MERGE = auto() +231 MOD = auto() +232 NATURAL = auto() +233 NEXT = auto() +234 NO_ACTION = auto() +235 NOTNULL = auto() +236 NULL = auto() +237 NULLS_FIRST = auto() +238 NULLS_LAST = auto() +239 OFFSET = auto() +240 ON = auto() +241 ONLY = auto() +242 OPTIONS = auto() +243 ORDER_BY = auto() +244 ORDERED = auto() +245 ORDINALITY = auto() +246 OUTER = auto() +247 OUT_OF = auto() +248 OVER = auto() +249 OVERLAPS = auto() +250 OVERWRITE = auto() +251 PARTITION = auto() +252 PARTITION_BY = auto() +253 PERCENT = auto() +254 PIVOT = auto() +255 PLACEHOLDER = auto() +256 PRECEDING = auto() +257 PRIMARY_KEY = auto() +258 PROCEDURE = auto() +259 PROPERTIES = auto() +260 PSEUDO_TYPE = auto() +261 QUALIFY = auto() +262 QUOTE = auto() +263 RANGE = auto() +264 RECURSIVE = auto() +265 REPLACE = auto() +266 RESPECT_NULLS = auto() +267 RETURNING = auto() +268 REFERENCES = auto() +269 RIGHT = auto() +270 RLIKE = auto() +271 ROLLBACK = auto() +272 ROLLUP = auto() +273 ROW = auto() +274 ROWS = auto() +275 SEED = auto() +276 SELECT = auto() +277 SEMI = auto() +278 SEPARATOR = auto() +279 SERDE_PROPERTIES = auto() +280 SET = auto() +281 SHOW = auto() +282 SIMILAR_TO = auto() +283 SOME = auto() +284 SORTKEY = auto() +285 SORT_BY = auto() +286 STRUCT = auto() +287 TABLE_SAMPLE = auto() +288 TEMPORARY = auto() +289 TOP = auto() +290 THEN = auto() +291 TRAILING = auto() +292 TRUE = auto() +293 UNBOUNDED = auto() +294 UNCACHE = auto() +295 UNION = auto() +296 UNLOGGED = auto() +297 UNNEST = auto() +298 UNPIVOT = auto() +299 UPDATE = auto() +300 USE = auto() +301 USING = auto() +302 VALUES = auto() +303 VIEW = auto() +304 VOLATILE = auto() +305 WHEN = auto() +306 WHERE = auto() +307 WINDOW = auto() +308 WITH = auto() +309 WITH_TIME_ZONE = auto() +310 WITH_LOCAL_TIME_ZONE = auto() +311 WITHIN_GROUP = auto() +312 WITHOUT_TIME_ZONE = auto() +313 UNIQUE = auto() @@ -2842,6 +2888,30 @@ + +
    +
    + LT_AT = +<TokenType.LT_AT: 'LT_AT'> + + +
    + + + + +
    +
    +
    + AT_GT = +<TokenType.AT_GT: 'AT_GT'> + + +
    + + + +
    @@ -2890,6 +2960,18 @@ +
    +
    +
    + DAMP = +<TokenType.DAMP: 'DAMP'> + + +
    + + + +
    @@ -3082,6 +3164,18 @@ +
    +
    +
    + BIT = +<TokenType.BIT: 'BIT'> + + +
    + + + +
    @@ -3106,6 +3200,18 @@ +
    +
    +
    + UTINYINT = +<TokenType.UTINYINT: 'UTINYINT'> + + +
    + + + +
    @@ -3118,6 +3224,18 @@ +
    +
    +
    + USMALLINT = +<TokenType.USMALLINT: 'USMALLINT'> + + +
    + + + +
    @@ -3130,6 +3248,18 @@ +
    +
    +
    + UINT = +<TokenType.UINT: 'UINT'> + + +
    + + + +
    @@ -3142,6 +3272,18 @@ +
    +
    +
    + UBIGINT = +<TokenType.UBIGINT: 'UBIGINT'> + + +
    + + + +
    @@ -5853,46 +5995,46 @@
    -
    308class Token:
    -309    __slots__ = ("token_type", "text", "line", "col", "comments")
    -310
    -311    @classmethod
    -312    def number(cls, number: int) -> Token:
    -313        """Returns a NUMBER token with `number` as its text."""
    -314        return cls(TokenType.NUMBER, str(number))
    -315
    -316    @classmethod
    -317    def string(cls, string: str) -> Token:
    -318        """Returns a STRING token with `string` as its text."""
    -319        return cls(TokenType.STRING, string)
    -320
    -321    @classmethod
    -322    def identifier(cls, identifier: str) -> Token:
    -323        """Returns an IDENTIFIER token with `identifier` as its text."""
    -324        return cls(TokenType.IDENTIFIER, identifier)
    -325
    -326    @classmethod
    -327    def var(cls, var: str) -> Token:
    -328        """Returns an VAR token with `var` as its text."""
    -329        return cls(TokenType.VAR, var)
    -330
    -331    def __init__(
    -332        self,
    -333        token_type: TokenType,
    -334        text: str,
    -335        line: int = 1,
    -336        col: int = 1,
    -337        comments: t.List[str] = [],
    -338    ) -> None:
    -339        self.token_type = token_type
    -340        self.text = text
    -341        self.line = line
    -342        self.col = max(col - len(text), 1)
    -343        self.comments = comments
    -344
    -345    def __repr__(self) -> str:
    -346        attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__)
    -347        return f"<Token {attributes}>"
    +            
    316class Token:
    +317    __slots__ = ("token_type", "text", "line", "col", "comments")
    +318
    +319    @classmethod
    +320    def number(cls, number: int) -> Token:
    +321        """Returns a NUMBER token with `number` as its text."""
    +322        return cls(TokenType.NUMBER, str(number))
    +323
    +324    @classmethod
    +325    def string(cls, string: str) -> Token:
    +326        """Returns a STRING token with `string` as its text."""
    +327        return cls(TokenType.STRING, string)
    +328
    +329    @classmethod
    +330    def identifier(cls, identifier: str) -> Token:
    +331        """Returns an IDENTIFIER token with `identifier` as its text."""
    +332        return cls(TokenType.IDENTIFIER, identifier)
    +333
    +334    @classmethod
    +335    def var(cls, var: str) -> Token:
    +336        """Returns an VAR token with `var` as its text."""
    +337        return cls(TokenType.VAR, var)
    +338
    +339    def __init__(
    +340        self,
    +341        token_type: TokenType,
    +342        text: str,
    +343        line: int = 1,
    +344        col: int = 1,
    +345        comments: t.List[str] = [],
    +346    ) -> None:
    +347        self.token_type = token_type
    +348        self.text = text
    +349        self.line = line
    +350        self.col = max(col - len(text), 1)
    +351        self.comments = comments
    +352
    +353    def __repr__(self) -> str:
    +354        attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__)
    +355        return f"<Token {attributes}>"
     
    @@ -5908,19 +6050,19 @@
    -
    331    def __init__(
    -332        self,
    -333        token_type: TokenType,
    -334        text: str,
    -335        line: int = 1,
    -336        col: int = 1,
    -337        comments: t.List[str] = [],
    -338    ) -> None:
    -339        self.token_type = token_type
    -340        self.text = text
    -341        self.line = line
    -342        self.col = max(col - len(text), 1)
    -343        self.comments = comments
    +            
    339    def __init__(
    +340        self,
    +341        token_type: TokenType,
    +342        text: str,
    +343        line: int = 1,
    +344        col: int = 1,
    +345        comments: t.List[str] = [],
    +346    ) -> None:
    +347        self.token_type = token_type
    +348        self.text = text
    +349        self.line = line
    +350        self.col = max(col - len(text), 1)
    +351        self.comments = comments
     
    @@ -5939,10 +6081,10 @@
    -
    311    @classmethod
    -312    def number(cls, number: int) -> Token:
    -313        """Returns a NUMBER token with `number` as its text."""
    -314        return cls(TokenType.NUMBER, str(number))
    +            
    319    @classmethod
    +320    def number(cls, number: int) -> Token:
    +321        """Returns a NUMBER token with `number` as its text."""
    +322        return cls(TokenType.NUMBER, str(number))
     
    @@ -5963,10 +6105,10 @@
    -
    316    @classmethod
    -317    def string(cls, string: str) -> Token:
    -318        """Returns a STRING token with `string` as its text."""
    -319        return cls(TokenType.STRING, string)
    +            
    324    @classmethod
    +325    def string(cls, string: str) -> Token:
    +326        """Returns a STRING token with `string` as its text."""
    +327        return cls(TokenType.STRING, string)
     
    @@ -5987,10 +6129,10 @@
    -
    321    @classmethod
    -322    def identifier(cls, identifier: str) -> Token:
    -323        """Returns an IDENTIFIER token with `identifier` as its text."""
    -324        return cls(TokenType.IDENTIFIER, identifier)
    +            
    329    @classmethod
    +330    def identifier(cls, identifier: str) -> Token:
    +331        """Returns an IDENTIFIER token with `identifier` as its text."""
    +332        return cls(TokenType.IDENTIFIER, identifier)
     
    @@ -6011,10 +6153,10 @@
    -
    326    @classmethod
    -327    def var(cls, var: str) -> Token:
    -328        """Returns an VAR token with `var` as its text."""
    -329        return cls(TokenType.VAR, var)
    +            
    334    @classmethod
    +335    def var(cls, var: str) -> Token:
    +336        """Returns an VAR token with `var` as its text."""
    +337        return cls(TokenType.VAR, var)
     
    @@ -6035,735 +6177,741 @@
    -
     390class Tokenizer(metaclass=_Tokenizer):
    - 391    SINGLE_TOKENS = {
    - 392        "(": TokenType.L_PAREN,
    - 393        ")": TokenType.R_PAREN,
    - 394        "[": TokenType.L_BRACKET,
    - 395        "]": TokenType.R_BRACKET,
    - 396        "{": TokenType.L_BRACE,
    - 397        "}": TokenType.R_BRACE,
    - 398        "&": TokenType.AMP,
    - 399        "^": TokenType.CARET,
    - 400        ":": TokenType.COLON,
    - 401        ",": TokenType.COMMA,
    - 402        ".": TokenType.DOT,
    - 403        "-": TokenType.DASH,
    - 404        "=": TokenType.EQ,
    - 405        ">": TokenType.GT,
    - 406        "<": TokenType.LT,
    - 407        "%": TokenType.MOD,
    - 408        "!": TokenType.NOT,
    - 409        "|": TokenType.PIPE,
    - 410        "+": TokenType.PLUS,
    - 411        ";": TokenType.SEMICOLON,
    - 412        "/": TokenType.SLASH,
    - 413        "\\": TokenType.BACKSLASH,
    - 414        "*": TokenType.STAR,
    - 415        "~": TokenType.TILDA,
    - 416        "?": TokenType.PLACEHOLDER,
    - 417        "@": TokenType.PARAMETER,
    - 418        # used for breaking a var like x'y' but nothing else
    - 419        # the token type doesn't matter
    - 420        "'": TokenType.QUOTE,
    - 421        "`": TokenType.IDENTIFIER,
    - 422        '"': TokenType.IDENTIFIER,
    - 423        "#": TokenType.HASH,
    - 424    }
    - 425
    - 426    QUOTES: t.List[t.Tuple[str, str] | str] = ["'"]
    - 427
    - 428    BIT_STRINGS: t.List[str | t.Tuple[str, str]] = []
    - 429
    - 430    HEX_STRINGS: t.List[str | t.Tuple[str, str]] = []
    - 431
    - 432    BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = []
    +            
     398class Tokenizer(metaclass=_Tokenizer):
    + 399    SINGLE_TOKENS = {
    + 400        "(": TokenType.L_PAREN,
    + 401        ")": TokenType.R_PAREN,
    + 402        "[": TokenType.L_BRACKET,
    + 403        "]": TokenType.R_BRACKET,
    + 404        "{": TokenType.L_BRACE,
    + 405        "}": TokenType.R_BRACE,
    + 406        "&": TokenType.AMP,
    + 407        "^": TokenType.CARET,
    + 408        ":": TokenType.COLON,
    + 409        ",": TokenType.COMMA,
    + 410        ".": TokenType.DOT,
    + 411        "-": TokenType.DASH,
    + 412        "=": TokenType.EQ,
    + 413        ">": TokenType.GT,
    + 414        "<": TokenType.LT,
    + 415        "%": TokenType.MOD,
    + 416        "!": TokenType.NOT,
    + 417        "|": TokenType.PIPE,
    + 418        "+": TokenType.PLUS,
    + 419        ";": TokenType.SEMICOLON,
    + 420        "/": TokenType.SLASH,
    + 421        "\\": TokenType.BACKSLASH,
    + 422        "*": TokenType.STAR,
    + 423        "~": TokenType.TILDA,
    + 424        "?": TokenType.PLACEHOLDER,
    + 425        "@": TokenType.PARAMETER,
    + 426        # used for breaking a var like x'y' but nothing else
    + 427        # the token type doesn't matter
    + 428        "'": TokenType.QUOTE,
    + 429        "`": TokenType.IDENTIFIER,
    + 430        '"': TokenType.IDENTIFIER,
    + 431        "#": TokenType.HASH,
    + 432    }
      433
    - 434    IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"']
    + 434    QUOTES: t.List[t.Tuple[str, str] | str] = ["'"]
      435
    - 436    STRING_ESCAPES = ["'"]
    + 436    BIT_STRINGS: t.List[str | t.Tuple[str, str]] = []
      437
    - 438    _STRING_ESCAPES: t.Set[str] = set()
    + 438    HEX_STRINGS: t.List[str | t.Tuple[str, str]] = []
      439
    - 440    IDENTIFIER_ESCAPES = ['"']
    + 440    BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = []
      441
    - 442    _IDENTIFIER_ESCAPES: t.Set[str] = set()
    + 442    IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"']
      443
    - 444    KEYWORDS = {
    - 445        **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")},
    - 446        **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")},
    - 447        "{{+": TokenType.BLOCK_START,
    - 448        "{{-": TokenType.BLOCK_START,
    - 449        "+}}": TokenType.BLOCK_END,
    - 450        "-}}": TokenType.BLOCK_END,
    - 451        "/*+": TokenType.HINT,
    - 452        "==": TokenType.EQ,
    - 453        "::": TokenType.DCOLON,
    - 454        "||": TokenType.DPIPE,
    - 455        ">=": TokenType.GTE,
    - 456        "<=": TokenType.LTE,
    - 457        "<>": TokenType.NEQ,
    - 458        "!=": TokenType.NEQ,
    - 459        "<=>": TokenType.NULLSAFE_EQ,
    - 460        "->": TokenType.ARROW,
    - 461        "->>": TokenType.DARROW,
    - 462        "=>": TokenType.FARROW,
    - 463        "#>": TokenType.HASH_ARROW,
    - 464        "#>>": TokenType.DHASH_ARROW,
    - 465        "<->": TokenType.LR_ARROW,
    - 466        "ALL": TokenType.ALL,
    - 467        "ALWAYS": TokenType.ALWAYS,
    - 468        "AND": TokenType.AND,
    - 469        "ANTI": TokenType.ANTI,
    - 470        "ANY": TokenType.ANY,
    - 471        "ASC": TokenType.ASC,
    - 472        "AS": TokenType.ALIAS,
    - 473        "AT TIME ZONE": TokenType.AT_TIME_ZONE,
    - 474        "AUTOINCREMENT": TokenType.AUTO_INCREMENT,
    - 475        "AUTO_INCREMENT": TokenType.AUTO_INCREMENT,
    - 476        "BEGIN": TokenType.BEGIN,
    - 477        "BETWEEN": TokenType.BETWEEN,
    - 478        "BOTH": TokenType.BOTH,
    - 479        "BUCKET": TokenType.BUCKET,
    - 480        "BY DEFAULT": TokenType.BY_DEFAULT,
    - 481        "CACHE": TokenType.CACHE,
    - 482        "UNCACHE": TokenType.UNCACHE,
    - 483        "CASE": TokenType.CASE,
    - 484        "CASCADE": TokenType.CASCADE,
    - 485        "CHARACTER SET": TokenType.CHARACTER_SET,
    - 486        "CLUSTER BY": TokenType.CLUSTER_BY,
    - 487        "COLLATE": TokenType.COLLATE,
    - 488        "COLUMN": TokenType.COLUMN,
    - 489        "COMMIT": TokenType.COMMIT,
    - 490        "COMPOUND": TokenType.COMPOUND,
    - 491        "CONSTRAINT": TokenType.CONSTRAINT,
    - 492        "CREATE": TokenType.CREATE,
    - 493        "CROSS": TokenType.CROSS,
    - 494        "CUBE": TokenType.CUBE,
    - 495        "CURRENT_DATE": TokenType.CURRENT_DATE,
    - 496        "CURRENT ROW": TokenType.CURRENT_ROW,
    - 497        "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP,
    - 498        "DATABASE": TokenType.DATABASE,
    - 499        "DEFAULT": TokenType.DEFAULT,
    - 500        "DELETE": TokenType.DELETE,
    - 501        "DESC": TokenType.DESC,
    - 502        "DESCRIBE": TokenType.DESCRIBE,
    - 503        "DISTINCT": TokenType.DISTINCT,
    - 504        "DISTINCT FROM": TokenType.DISTINCT_FROM,
    - 505        "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY,
    - 506        "DIV": TokenType.DIV,
    - 507        "DROP": TokenType.DROP,
    - 508        "ELSE": TokenType.ELSE,
    - 509        "END": TokenType.END,
    - 510        "ESCAPE": TokenType.ESCAPE,
    - 511        "EXCEPT": TokenType.EXCEPT,
    - 512        "EXECUTE": TokenType.EXECUTE,
    - 513        "EXISTS": TokenType.EXISTS,
    - 514        "FALSE": TokenType.FALSE,
    - 515        "FETCH": TokenType.FETCH,
    - 516        "FILTER": TokenType.FILTER,
    - 517        "FIRST": TokenType.FIRST,
    - 518        "FULL": TokenType.FULL,
    - 519        "FUNCTION": TokenType.FUNCTION,
    - 520        "FOLLOWING": TokenType.FOLLOWING,
    - 521        "FOR": TokenType.FOR,
    - 522        "FOREIGN KEY": TokenType.FOREIGN_KEY,
    - 523        "FORMAT": TokenType.FORMAT,
    - 524        "FROM": TokenType.FROM,
    - 525        "GLOB": TokenType.GLOB,
    - 526        "GROUP BY": TokenType.GROUP_BY,
    - 527        "GROUPING SETS": TokenType.GROUPING_SETS,
    - 528        "HAVING": TokenType.HAVING,
    - 529        "IF": TokenType.IF,
    - 530        "ILIKE": TokenType.ILIKE,
    - 531        "IGNORE NULLS": TokenType.IGNORE_NULLS,
    - 532        "IN": TokenType.IN,
    - 533        "INDEX": TokenType.INDEX,
    - 534        "INET": TokenType.INET,
    - 535        "INNER": TokenType.INNER,
    - 536        "INSERT": TokenType.INSERT,
    - 537        "INTERVAL": TokenType.INTERVAL,
    - 538        "INTERSECT": TokenType.INTERSECT,
    - 539        "INTO": TokenType.INTO,
    - 540        "IS": TokenType.IS,
    - 541        "ISNULL": TokenType.ISNULL,
    - 542        "JOIN": TokenType.JOIN,
    - 543        "LATERAL": TokenType.LATERAL,
    - 544        "LAZY": TokenType.LAZY,
    - 545        "LEADING": TokenType.LEADING,
    - 546        "LEFT": TokenType.LEFT,
    - 547        "LIKE": TokenType.LIKE,
    - 548        "LIMIT": TokenType.LIMIT,
    - 549        "LOAD DATA": TokenType.LOAD_DATA,
    - 550        "LOCAL": TokenType.LOCAL,
    - 551        "MATERIALIZED": TokenType.MATERIALIZED,
    - 552        "MERGE": TokenType.MERGE,
    - 553        "NATURAL": TokenType.NATURAL,
    - 554        "NEXT": TokenType.NEXT,
    - 555        "NO ACTION": TokenType.NO_ACTION,
    - 556        "NOT": TokenType.NOT,
    - 557        "NOTNULL": TokenType.NOTNULL,
    - 558        "NULL": TokenType.NULL,
    - 559        "NULLS FIRST": TokenType.NULLS_FIRST,
    - 560        "NULLS LAST": TokenType.NULLS_LAST,
    - 561        "OBJECT": TokenType.OBJECT,
    - 562        "OFFSET": TokenType.OFFSET,
    - 563        "ON": TokenType.ON,
    - 564        "ONLY": TokenType.ONLY,
    - 565        "OPTIONS": TokenType.OPTIONS,
    - 566        "OR": TokenType.OR,
    - 567        "ORDER BY": TokenType.ORDER_BY,
    - 568        "ORDINALITY": TokenType.ORDINALITY,
    - 569        "OUTER": TokenType.OUTER,
    - 570        "OUT OF": TokenType.OUT_OF,
    - 571        "OVER": TokenType.OVER,
    - 572        "OVERLAPS": TokenType.OVERLAPS,
    - 573        "OVERWRITE": TokenType.OVERWRITE,
    - 574        "PARTITION": TokenType.PARTITION,
    - 575        "PARTITION BY": TokenType.PARTITION_BY,
    - 576        "PARTITIONED BY": TokenType.PARTITION_BY,
    - 577        "PARTITIONED_BY": TokenType.PARTITION_BY,
    - 578        "PERCENT": TokenType.PERCENT,
    - 579        "PIVOT": TokenType.PIVOT,
    - 580        "PRECEDING": TokenType.PRECEDING,
    - 581        "PRIMARY KEY": TokenType.PRIMARY_KEY,
    - 582        "PROCEDURE": TokenType.PROCEDURE,
    - 583        "QUALIFY": TokenType.QUALIFY,
    - 584        "RANGE": TokenType.RANGE,
    - 585        "RECURSIVE": TokenType.RECURSIVE,
    - 586        "REGEXP": TokenType.RLIKE,
    - 587        "REPLACE": TokenType.REPLACE,
    - 588        "RESPECT NULLS": TokenType.RESPECT_NULLS,
    - 589        "REFERENCES": TokenType.REFERENCES,
    - 590        "RIGHT": TokenType.RIGHT,
    - 591        "RLIKE": TokenType.RLIKE,
    - 592        "ROLLBACK": TokenType.ROLLBACK,
    - 593        "ROLLUP": TokenType.ROLLUP,
    - 594        "ROW": TokenType.ROW,
    - 595        "ROWS": TokenType.ROWS,
    - 596        "SCHEMA": TokenType.SCHEMA,
    - 597        "SEED": TokenType.SEED,
    - 598        "SELECT": TokenType.SELECT,
    - 599        "SEMI": TokenType.SEMI,
    - 600        "SET": TokenType.SET,
    - 601        "SHOW": TokenType.SHOW,
    - 602        "SIMILAR TO": TokenType.SIMILAR_TO,
    - 603        "SOME": TokenType.SOME,
    - 604        "SORTKEY": TokenType.SORTKEY,
    - 605        "SORT BY": TokenType.SORT_BY,
    - 606        "TABLE": TokenType.TABLE,
    - 607        "TABLESAMPLE": TokenType.TABLE_SAMPLE,
    - 608        "TEMP": TokenType.TEMPORARY,
    - 609        "TEMPORARY": TokenType.TEMPORARY,
    - 610        "THEN": TokenType.THEN,
    - 611        "TRUE": TokenType.TRUE,
    - 612        "TRAILING": TokenType.TRAILING,
    - 613        "UNBOUNDED": TokenType.UNBOUNDED,
    - 614        "UNION": TokenType.UNION,
    - 615        "UNLOGGED": TokenType.UNLOGGED,
    - 616        "UNNEST": TokenType.UNNEST,
    - 617        "UNPIVOT": TokenType.UNPIVOT,
    - 618        "UPDATE": TokenType.UPDATE,
    - 619        "USE": TokenType.USE,
    - 620        "USING": TokenType.USING,
    - 621        "VALUES": TokenType.VALUES,
    - 622        "VIEW": TokenType.VIEW,
    - 623        "VOLATILE": TokenType.VOLATILE,
    - 624        "WHEN": TokenType.WHEN,
    - 625        "WHERE": TokenType.WHERE,
    - 626        "WINDOW": TokenType.WINDOW,
    - 627        "WITH": TokenType.WITH,
    - 628        "WITH TIME ZONE": TokenType.WITH_TIME_ZONE,
    - 629        "WITH LOCAL TIME ZONE": TokenType.WITH_LOCAL_TIME_ZONE,
    - 630        "WITHIN GROUP": TokenType.WITHIN_GROUP,
    - 631        "WITHOUT TIME ZONE": TokenType.WITHOUT_TIME_ZONE,
    - 632        "APPLY": TokenType.APPLY,
    - 633        "ARRAY": TokenType.ARRAY,
    - 634        "BOOL": TokenType.BOOLEAN,
    - 635        "BOOLEAN": TokenType.BOOLEAN,
    - 636        "BYTE": TokenType.TINYINT,
    - 637        "TINYINT": TokenType.TINYINT,
    - 638        "SHORT": TokenType.SMALLINT,
    - 639        "SMALLINT": TokenType.SMALLINT,
    - 640        "INT2": TokenType.SMALLINT,
    - 641        "INTEGER": TokenType.INT,
    - 642        "INT": TokenType.INT,
    - 643        "INT4": TokenType.INT,
    - 644        "LONG": TokenType.BIGINT,
    - 645        "BIGINT": TokenType.BIGINT,
    - 646        "INT8": TokenType.BIGINT,
    - 647        "DECIMAL": TokenType.DECIMAL,
    - 648        "MAP": TokenType.MAP,
    - 649        "NULLABLE": TokenType.NULLABLE,
    - 650        "NUMBER": TokenType.DECIMAL,
    - 651        "NUMERIC": TokenType.DECIMAL,
    - 652        "FIXED": TokenType.DECIMAL,
    - 653        "REAL": TokenType.FLOAT,
    - 654        "FLOAT": TokenType.FLOAT,
    - 655        "FLOAT4": TokenType.FLOAT,
    - 656        "FLOAT8": TokenType.DOUBLE,
    - 657        "DOUBLE": TokenType.DOUBLE,
    - 658        "DOUBLE PRECISION": TokenType.DOUBLE,
    - 659        "JSON": TokenType.JSON,
    - 660        "CHAR": TokenType.CHAR,
    - 661        "CHARACTER": TokenType.CHAR,
    - 662        "NCHAR": TokenType.NCHAR,
    - 663        "VARCHAR": TokenType.VARCHAR,
    - 664        "VARCHAR2": TokenType.VARCHAR,
    - 665        "NVARCHAR": TokenType.NVARCHAR,
    - 666        "NVARCHAR2": TokenType.NVARCHAR,
    - 667        "STR": TokenType.TEXT,
    - 668        "STRING": TokenType.TEXT,
    - 669        "TEXT": TokenType.TEXT,
    - 670        "CLOB": TokenType.TEXT,
    - 671        "LONGVARCHAR": TokenType.TEXT,
    - 672        "BINARY": TokenType.BINARY,
    - 673        "BLOB": TokenType.VARBINARY,
    - 674        "BYTEA": TokenType.VARBINARY,
    - 675        "VARBINARY": TokenType.VARBINARY,
    - 676        "TIME": TokenType.TIME,
    - 677        "TIMESTAMP": TokenType.TIMESTAMP,
    - 678        "TIMESTAMPTZ": TokenType.TIMESTAMPTZ,
    - 679        "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ,
    - 680        "DATE": TokenType.DATE,
    - 681        "DATETIME": TokenType.DATETIME,
    - 682        "UNIQUE": TokenType.UNIQUE,
    - 683        "STRUCT": TokenType.STRUCT,
    - 684        "VARIANT": TokenType.VARIANT,
    - 685        "ALTER": TokenType.ALTER,
    - 686        "ALTER AGGREGATE": TokenType.COMMAND,
    - 687        "ALTER DEFAULT": TokenType.COMMAND,
    - 688        "ALTER DOMAIN": TokenType.COMMAND,
    - 689        "ALTER ROLE": TokenType.COMMAND,
    - 690        "ALTER RULE": TokenType.COMMAND,
    - 691        "ALTER SEQUENCE": TokenType.COMMAND,
    - 692        "ALTER TYPE": TokenType.COMMAND,
    - 693        "ALTER USER": TokenType.COMMAND,
    - 694        "ALTER VIEW": TokenType.COMMAND,
    - 695        "ANALYZE": TokenType.COMMAND,
    - 696        "CALL": TokenType.COMMAND,
    - 697        "COMMENT": TokenType.COMMENT,
    - 698        "COPY": TokenType.COMMAND,
    - 699        "EXPLAIN": TokenType.COMMAND,
    - 700        "GRANT": TokenType.COMMAND,
    - 701        "OPTIMIZE": TokenType.COMMAND,
    - 702        "PREPARE": TokenType.COMMAND,
    - 703        "TRUNCATE": TokenType.COMMAND,
    - 704        "VACUUM": TokenType.COMMAND,
    - 705    }
    - 706
    - 707    WHITE_SPACE: t.Dict[str, TokenType] = {
    - 708        " ": TokenType.SPACE,
    - 709        "\t": TokenType.SPACE,
    - 710        "\n": TokenType.BREAK,
    - 711        "\r": TokenType.BREAK,
    - 712        "\r\n": TokenType.BREAK,
    - 713    }
    - 714
    - 715    COMMANDS = {
    - 716        TokenType.COMMAND,
    - 717        TokenType.EXECUTE,
    - 718        TokenType.FETCH,
    - 719        TokenType.SET,
    - 720        TokenType.SHOW,
    - 721    }
    - 722
    - 723    COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN}
    + 444    STRING_ESCAPES = ["'"]
    + 445
    + 446    _STRING_ESCAPES: t.Set[str] = set()
    + 447
    + 448    IDENTIFIER_ESCAPES = ['"']
    + 449
    + 450    _IDENTIFIER_ESCAPES: t.Set[str] = set()
    + 451
    + 452    KEYWORDS = {
    + 453        **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")},
    + 454        **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")},
    + 455        "{{+": TokenType.BLOCK_START,
    + 456        "{{-": TokenType.BLOCK_START,
    + 457        "+}}": TokenType.BLOCK_END,
    + 458        "-}}": TokenType.BLOCK_END,
    + 459        "/*+": TokenType.HINT,
    + 460        "==": TokenType.EQ,
    + 461        "::": TokenType.DCOLON,
    + 462        "||": TokenType.DPIPE,
    + 463        ">=": TokenType.GTE,
    + 464        "<=": TokenType.LTE,
    + 465        "<>": TokenType.NEQ,
    + 466        "!=": TokenType.NEQ,
    + 467        "<=>": TokenType.NULLSAFE_EQ,
    + 468        "->": TokenType.ARROW,
    + 469        "->>": TokenType.DARROW,
    + 470        "=>": TokenType.FARROW,
    + 471        "#>": TokenType.HASH_ARROW,
    + 472        "#>>": TokenType.DHASH_ARROW,
    + 473        "<->": TokenType.LR_ARROW,
    + 474        "&&": TokenType.DAMP,
    + 475        "ALL": TokenType.ALL,
    + 476        "ALWAYS": TokenType.ALWAYS,
    + 477        "AND": TokenType.AND,
    + 478        "ANTI": TokenType.ANTI,
    + 479        "ANY": TokenType.ANY,
    + 480        "ASC": TokenType.ASC,
    + 481        "AS": TokenType.ALIAS,
    + 482        "AT TIME ZONE": TokenType.AT_TIME_ZONE,
    + 483        "AUTOINCREMENT": TokenType.AUTO_INCREMENT,
    + 484        "AUTO_INCREMENT": TokenType.AUTO_INCREMENT,
    + 485        "BEGIN": TokenType.BEGIN,
    + 486        "BETWEEN": TokenType.BETWEEN,
    + 487        "BOTH": TokenType.BOTH,
    + 488        "BUCKET": TokenType.BUCKET,
    + 489        "BY DEFAULT": TokenType.BY_DEFAULT,
    + 490        "CACHE": TokenType.CACHE,
    + 491        "UNCACHE": TokenType.UNCACHE,
    + 492        "CASE": TokenType.CASE,
    + 493        "CASCADE": TokenType.CASCADE,
    + 494        "CHARACTER SET": TokenType.CHARACTER_SET,
    + 495        "CLUSTER BY": TokenType.CLUSTER_BY,
    + 496        "COLLATE": TokenType.COLLATE,
    + 497        "COLUMN": TokenType.COLUMN,
    + 498        "COMMIT": TokenType.COMMIT,
    + 499        "COMPOUND": TokenType.COMPOUND,
    + 500        "CONSTRAINT": TokenType.CONSTRAINT,
    + 501        "CREATE": TokenType.CREATE,
    + 502        "CROSS": TokenType.CROSS,
    + 503        "CUBE": TokenType.CUBE,
    + 504        "CURRENT_DATE": TokenType.CURRENT_DATE,
    + 505        "CURRENT ROW": TokenType.CURRENT_ROW,
    + 506        "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP,
    + 507        "DATABASE": TokenType.DATABASE,
    + 508        "DEFAULT": TokenType.DEFAULT,
    + 509        "DELETE": TokenType.DELETE,
    + 510        "DESC": TokenType.DESC,
    + 511        "DESCRIBE": TokenType.DESCRIBE,
    + 512        "DISTINCT": TokenType.DISTINCT,
    + 513        "DISTINCT FROM": TokenType.DISTINCT_FROM,
    + 514        "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY,
    + 515        "DIV": TokenType.DIV,
    + 516        "DROP": TokenType.DROP,
    + 517        "ELSE": TokenType.ELSE,
    + 518        "END": TokenType.END,
    + 519        "ESCAPE": TokenType.ESCAPE,
    + 520        "EXCEPT": TokenType.EXCEPT,
    + 521        "EXECUTE": TokenType.EXECUTE,
    + 522        "EXISTS": TokenType.EXISTS,
    + 523        "FALSE": TokenType.FALSE,
    + 524        "FETCH": TokenType.FETCH,
    + 525        "FILTER": TokenType.FILTER,
    + 526        "FIRST": TokenType.FIRST,
    + 527        "FULL": TokenType.FULL,
    + 528        "FUNCTION": TokenType.FUNCTION,
    + 529        "FOLLOWING": TokenType.FOLLOWING,
    + 530        "FOR": TokenType.FOR,
    + 531        "FOREIGN KEY": TokenType.FOREIGN_KEY,
    + 532        "FORMAT": TokenType.FORMAT,
    + 533        "FROM": TokenType.FROM,
    + 534        "GLOB": TokenType.GLOB,
    + 535        "GROUP BY": TokenType.GROUP_BY,
    + 536        "GROUPING SETS": TokenType.GROUPING_SETS,
    + 537        "HAVING": TokenType.HAVING,
    + 538        "IF": TokenType.IF,
    + 539        "ILIKE": TokenType.ILIKE,
    + 540        "IGNORE NULLS": TokenType.IGNORE_NULLS,
    + 541        "IN": TokenType.IN,
    + 542        "INDEX": TokenType.INDEX,
    + 543        "INET": TokenType.INET,
    + 544        "INNER": TokenType.INNER,
    + 545        "INSERT": TokenType.INSERT,
    + 546        "INTERVAL": TokenType.INTERVAL,
    + 547        "INTERSECT": TokenType.INTERSECT,
    + 548        "INTO": TokenType.INTO,
    + 549        "IS": TokenType.IS,
    + 550        "ISNULL": TokenType.ISNULL,
    + 551        "JOIN": TokenType.JOIN,
    + 552        "LATERAL": TokenType.LATERAL,
    + 553        "LAZY": TokenType.LAZY,
    + 554        "LEADING": TokenType.LEADING,
    + 555        "LEFT": TokenType.LEFT,
    + 556        "LIKE": TokenType.LIKE,
    + 557        "LIMIT": TokenType.LIMIT,
    + 558        "LOAD DATA": TokenType.LOAD_DATA,
    + 559        "LOCAL": TokenType.LOCAL,
    + 560        "MATERIALIZED": TokenType.MATERIALIZED,
    + 561        "MERGE": TokenType.MERGE,
    + 562        "NATURAL": TokenType.NATURAL,
    + 563        "NEXT": TokenType.NEXT,
    + 564        "NO ACTION": TokenType.NO_ACTION,
    + 565        "NOT": TokenType.NOT,
    + 566        "NOTNULL": TokenType.NOTNULL,
    + 567        "NULL": TokenType.NULL,
    + 568        "NULLS FIRST": TokenType.NULLS_FIRST,
    + 569        "NULLS LAST": TokenType.NULLS_LAST,
    + 570        "OBJECT": TokenType.OBJECT,
    + 571        "OFFSET": TokenType.OFFSET,
    + 572        "ON": TokenType.ON,
    + 573        "ONLY": TokenType.ONLY,
    + 574        "OPTIONS": TokenType.OPTIONS,
    + 575        "OR": TokenType.OR,
    + 576        "ORDER BY": TokenType.ORDER_BY,
    + 577        "ORDINALITY": TokenType.ORDINALITY,
    + 578        "OUTER": TokenType.OUTER,
    + 579        "OUT OF": TokenType.OUT_OF,
    + 580        "OVER": TokenType.OVER,
    + 581        "OVERLAPS": TokenType.OVERLAPS,
    + 582        "OVERWRITE": TokenType.OVERWRITE,
    + 583        "PARTITION": TokenType.PARTITION,
    + 584        "PARTITION BY": TokenType.PARTITION_BY,
    + 585        "PARTITIONED BY": TokenType.PARTITION_BY,
    + 586        "PARTITIONED_BY": TokenType.PARTITION_BY,
    + 587        "PERCENT": TokenType.PERCENT,
    + 588        "PIVOT": TokenType.PIVOT,
    + 589        "PRECEDING": TokenType.PRECEDING,
    + 590        "PRIMARY KEY": TokenType.PRIMARY_KEY,
    + 591        "PROCEDURE": TokenType.PROCEDURE,
    + 592        "QUALIFY": TokenType.QUALIFY,
    + 593        "RANGE": TokenType.RANGE,
    + 594        "RECURSIVE": TokenType.RECURSIVE,
    + 595        "REGEXP": TokenType.RLIKE,
    + 596        "REPLACE": TokenType.REPLACE,
    + 597        "RESPECT NULLS": TokenType.RESPECT_NULLS,
    + 598        "REFERENCES": TokenType.REFERENCES,
    + 599        "RIGHT": TokenType.RIGHT,
    + 600        "RLIKE": TokenType.RLIKE,
    + 601        "ROLLBACK": TokenType.ROLLBACK,
    + 602        "ROLLUP": TokenType.ROLLUP,
    + 603        "ROW": TokenType.ROW,
    + 604        "ROWS": TokenType.ROWS,
    + 605        "SCHEMA": TokenType.SCHEMA,
    + 606        "SEED": TokenType.SEED,
    + 607        "SELECT": TokenType.SELECT,
    + 608        "SEMI": TokenType.SEMI,
    + 609        "SET": TokenType.SET,
    + 610        "SHOW": TokenType.SHOW,
    + 611        "SIMILAR TO": TokenType.SIMILAR_TO,
    + 612        "SOME": TokenType.SOME,
    + 613        "SORTKEY": TokenType.SORTKEY,
    + 614        "SORT BY": TokenType.SORT_BY,
    + 615        "TABLE": TokenType.TABLE,
    + 616        "TABLESAMPLE": TokenType.TABLE_SAMPLE,
    + 617        "TEMP": TokenType.TEMPORARY,
    + 618        "TEMPORARY": TokenType.TEMPORARY,
    + 619        "THEN": TokenType.THEN,
    + 620        "TRUE": TokenType.TRUE,
    + 621        "TRAILING": TokenType.TRAILING,
    + 622        "UNBOUNDED": TokenType.UNBOUNDED,
    + 623        "UNION": TokenType.UNION,
    + 624        "UNLOGGED": TokenType.UNLOGGED,
    + 625        "UNNEST": TokenType.UNNEST,
    + 626        "UNPIVOT": TokenType.UNPIVOT,
    + 627        "UPDATE": TokenType.UPDATE,
    + 628        "USE": TokenType.USE,
    + 629        "USING": TokenType.USING,
    + 630        "VALUES": TokenType.VALUES,
    + 631        "VIEW": TokenType.VIEW,
    + 632        "VOLATILE": TokenType.VOLATILE,
    + 633        "WHEN": TokenType.WHEN,
    + 634        "WHERE": TokenType.WHERE,
    + 635        "WINDOW": TokenType.WINDOW,
    + 636        "WITH": TokenType.WITH,
    + 637        "WITH TIME ZONE": TokenType.WITH_TIME_ZONE,
    + 638        "WITH LOCAL TIME ZONE": TokenType.WITH_LOCAL_TIME_ZONE,
    + 639        "WITHIN GROUP": TokenType.WITHIN_GROUP,
    + 640        "WITHOUT TIME ZONE": TokenType.WITHOUT_TIME_ZONE,
    + 641        "APPLY": TokenType.APPLY,
    + 642        "ARRAY": TokenType.ARRAY,
    + 643        "BIT": TokenType.BIT,
    + 644        "BOOL": TokenType.BOOLEAN,
    + 645        "BOOLEAN": TokenType.BOOLEAN,
    + 646        "BYTE": TokenType.TINYINT,
    + 647        "TINYINT": TokenType.TINYINT,
    + 648        "SHORT": TokenType.SMALLINT,
    + 649        "SMALLINT": TokenType.SMALLINT,
    + 650        "INT2": TokenType.SMALLINT,
    + 651        "INTEGER": TokenType.INT,
    + 652        "INT": TokenType.INT,
    + 653        "INT4": TokenType.INT,
    + 654        "LONG": TokenType.BIGINT,
    + 655        "BIGINT": TokenType.BIGINT,
    + 656        "INT8": TokenType.BIGINT,
    + 657        "DECIMAL": TokenType.DECIMAL,
    + 658        "MAP": TokenType.MAP,
    + 659        "NULLABLE": TokenType.NULLABLE,
    + 660        "NUMBER": TokenType.DECIMAL,
    + 661        "NUMERIC": TokenType.DECIMAL,
    + 662        "FIXED": TokenType.DECIMAL,
    + 663        "REAL": TokenType.FLOAT,
    + 664        "FLOAT": TokenType.FLOAT,
    + 665        "FLOAT4": TokenType.FLOAT,
    + 666        "FLOAT8": TokenType.DOUBLE,
    + 667        "DOUBLE": TokenType.DOUBLE,
    + 668        "DOUBLE PRECISION": TokenType.DOUBLE,
    + 669        "JSON": TokenType.JSON,
    + 670        "CHAR": TokenType.CHAR,
    + 671        "CHARACTER": TokenType.CHAR,
    + 672        "NCHAR": TokenType.NCHAR,
    + 673        "VARCHAR": TokenType.VARCHAR,
    + 674        "VARCHAR2": TokenType.VARCHAR,
    + 675        "NVARCHAR": TokenType.NVARCHAR,
    + 676        "NVARCHAR2": TokenType.NVARCHAR,
    + 677        "STR": TokenType.TEXT,
    + 678        "STRING": TokenType.TEXT,
    + 679        "TEXT": TokenType.TEXT,
    + 680        "CLOB": TokenType.TEXT,
    + 681        "LONGVARCHAR": TokenType.TEXT,
    + 682        "BINARY": TokenType.BINARY,
    + 683        "BLOB": TokenType.VARBINARY,
    + 684        "BYTEA": TokenType.VARBINARY,
    + 685        "VARBINARY": TokenType.VARBINARY,
    + 686        "TIME": TokenType.TIME,
    + 687        "TIMESTAMP": TokenType.TIMESTAMP,
    + 688        "TIMESTAMPTZ": TokenType.TIMESTAMPTZ,
    + 689        "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ,
    + 690        "DATE": TokenType.DATE,
    + 691        "DATETIME": TokenType.DATETIME,
    + 692        "UNIQUE": TokenType.UNIQUE,
    + 693        "STRUCT": TokenType.STRUCT,
    + 694        "VARIANT": TokenType.VARIANT,
    + 695        "ALTER": TokenType.ALTER,
    + 696        "ALTER AGGREGATE": TokenType.COMMAND,
    + 697        "ALTER DEFAULT": TokenType.COMMAND,
    + 698        "ALTER DOMAIN": TokenType.COMMAND,
    + 699        "ALTER ROLE": TokenType.COMMAND,
    + 700        "ALTER RULE": TokenType.COMMAND,
    + 701        "ALTER SEQUENCE": TokenType.COMMAND,
    + 702        "ALTER TYPE": TokenType.COMMAND,
    + 703        "ALTER USER": TokenType.COMMAND,
    + 704        "ALTER VIEW": TokenType.COMMAND,
    + 705        "ANALYZE": TokenType.COMMAND,
    + 706        "CALL": TokenType.COMMAND,
    + 707        "COMMENT": TokenType.COMMENT,
    + 708        "COPY": TokenType.COMMAND,
    + 709        "EXPLAIN": TokenType.COMMAND,
    + 710        "GRANT": TokenType.COMMAND,
    + 711        "OPTIMIZE": TokenType.COMMAND,
    + 712        "PREPARE": TokenType.COMMAND,
    + 713        "TRUNCATE": TokenType.COMMAND,
    + 714        "VACUUM": TokenType.COMMAND,
    + 715    }
    + 716
    + 717    WHITE_SPACE: t.Dict[str, TokenType] = {
    + 718        " ": TokenType.SPACE,
    + 719        "\t": TokenType.SPACE,
    + 720        "\n": TokenType.BREAK,
    + 721        "\r": TokenType.BREAK,
    + 722        "\r\n": TokenType.BREAK,
    + 723    }
      724
    - 725    # handle numeric literals like in hive (3L = BIGINT)
    - 726    NUMERIC_LITERALS: t.Dict[str, str] = {}
    - 727    ENCODE: t.Optional[str] = None
    - 728
    - 729    COMMENTS = ["--", ("/*", "*/"), ("{#", "#}")]
    - 730    KEYWORD_TRIE = None  # autofilled
    - 731
    - 732    IDENTIFIER_CAN_START_WITH_DIGIT = False
    - 733
    - 734    __slots__ = (
    - 735        "sql",
    - 736        "size",
    - 737        "tokens",
    - 738        "_start",
    - 739        "_current",
    - 740        "_line",
    - 741        "_col",
    - 742        "_comments",
    - 743        "_char",
    - 744        "_end",
    - 745        "_peek",
    - 746        "_prev_token_line",
    - 747        "_prev_token_comments",
    - 748        "_prev_token_type",
    - 749    )
    - 750
    - 751    def __init__(self) -> None:
    - 752        self.reset()
    - 753
    - 754    def reset(self) -> None:
    - 755        self.sql = ""
    - 756        self.size = 0
    - 757        self.tokens: t.List[Token] = []
    - 758        self._start = 0
    - 759        self._current = 0
    - 760        self._line = 1
    - 761        self._col = 1
    - 762        self._comments: t.List[str] = []
    + 725    COMMANDS = {
    + 726        TokenType.COMMAND,
    + 727        TokenType.EXECUTE,
    + 728        TokenType.FETCH,
    + 729        TokenType.SET,
    + 730        TokenType.SHOW,
    + 731    }
    + 732
    + 733    COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN}
    + 734
    + 735    # handle numeric literals like in hive (3L = BIGINT)
    + 736    NUMERIC_LITERALS: t.Dict[str, str] = {}
    + 737    ENCODE: t.Optional[str] = None
    + 738
    + 739    COMMENTS = ["--", ("/*", "*/"), ("{#", "#}")]
    + 740    KEYWORD_TRIE = None  # autofilled
    + 741
    + 742    IDENTIFIER_CAN_START_WITH_DIGIT = False
    + 743
    + 744    __slots__ = (
    + 745        "sql",
    + 746        "size",
    + 747        "tokens",
    + 748        "_start",
    + 749        "_current",
    + 750        "_line",
    + 751        "_col",
    + 752        "_comments",
    + 753        "_char",
    + 754        "_end",
    + 755        "_peek",
    + 756        "_prev_token_line",
    + 757        "_prev_token_comments",
    + 758        "_prev_token_type",
    + 759    )
    + 760
    + 761    def __init__(self) -> None:
    + 762        self.reset()
      763
    - 764        self._char = None
    - 765        self._end = None
    - 766        self._peek = None
    - 767        self._prev_token_line = -1
    - 768        self._prev_token_comments: t.List[str] = []
    - 769        self._prev_token_type = None
    - 770
    - 771    def tokenize(self, sql: str) -> t.List[Token]:
    - 772        """Returns a list of tokens corresponding to the SQL string `sql`."""
    - 773        self.reset()
    - 774        self.sql = sql
    - 775        self.size = len(sql)
    - 776        self._scan()
    - 777        return self.tokens
    - 778
    - 779    def _scan(self, until: t.Optional[t.Callable] = None) -> None:
    - 780        while self.size and not self._end:
    - 781            self._start = self._current
    - 782            self._advance()
    - 783
    - 784            if self._char is None:
    - 785                break
    - 786
    - 787            if self._char not in self.WHITE_SPACE:
    - 788                if self._char.isdigit():
    - 789                    self._scan_number()
    - 790                elif self._char in self._IDENTIFIERS:
    - 791                    self._scan_identifier(self._IDENTIFIERS[self._char])
    - 792                else:
    - 793                    self._scan_keywords()
    - 794
    - 795            if until and until():
    - 796                break
    - 797
    - 798    def _chars(self, size: int) -> str:
    - 799        if size == 1:
    - 800            return self._char  # type: ignore
    - 801        start = self._current - 1
    - 802        end = start + size
    - 803        if end <= self.size:
    - 804            return self.sql[start:end]
    - 805        return ""
    - 806
    - 807    def _line_break(self, char: t.Optional[str]) -> bool:
    - 808        return self.WHITE_SPACE.get(char) == TokenType.BREAK  # type: ignore
    - 809
    - 810    def _advance(self, i: int = 1) -> None:
    - 811        if self._line_break(self._char):
    - 812            self._set_new_line()
    - 813
    - 814        self._col += i
    - 815        self._current += i
    - 816        self._end = self._current >= self.size  # type: ignore
    - 817        self._char = self.sql[self._current - 1]  # type: ignore
    - 818        self._peek = self.sql[self._current] if self._current < self.size else ""  # type: ignore
    + 764    def reset(self) -> None:
    + 765        self.sql = ""
    + 766        self.size = 0
    + 767        self.tokens: t.List[Token] = []
    + 768        self._start = 0
    + 769        self._current = 0
    + 770        self._line = 1
    + 771        self._col = 1
    + 772        self._comments: t.List[str] = []
    + 773
    + 774        self._char = None
    + 775        self._end = None
    + 776        self._peek = None
    + 777        self._prev_token_line = -1
    + 778        self._prev_token_comments: t.List[str] = []
    + 779        self._prev_token_type = None
    + 780
    + 781    def tokenize(self, sql: str) -> t.List[Token]:
    + 782        """Returns a list of tokens corresponding to the SQL string `sql`."""
    + 783        self.reset()
    + 784        self.sql = sql
    + 785        self.size = len(sql)
    + 786        self._scan()
    + 787        return self.tokens
    + 788
    + 789    def _scan(self, until: t.Optional[t.Callable] = None) -> None:
    + 790        while self.size and not self._end:
    + 791            self._start = self._current
    + 792            self._advance()
    + 793
    + 794            if self._char is None:
    + 795                break
    + 796
    + 797            if self._char not in self.WHITE_SPACE:
    + 798                if self._char.isdigit():
    + 799                    self._scan_number()
    + 800                elif self._char in self._IDENTIFIERS:
    + 801                    self._scan_identifier(self._IDENTIFIERS[self._char])
    + 802                else:
    + 803                    self._scan_keywords()
    + 804
    + 805            if until and until():
    + 806                break
    + 807
    + 808    def _chars(self, size: int) -> str:
    + 809        if size == 1:
    + 810            return self._char  # type: ignore
    + 811        start = self._current - 1
    + 812        end = start + size
    + 813        if end <= self.size:
    + 814            return self.sql[start:end]
    + 815        return ""
    + 816
    + 817    def _line_break(self, char: t.Optional[str]) -> bool:
    + 818        return self.WHITE_SPACE.get(char) == TokenType.BREAK  # type: ignore
      819
    - 820    def _set_new_line(self) -> None:
    - 821        self._col = 1
    - 822        self._line += 1
    + 820    def _advance(self, i: int = 1) -> None:
    + 821        if self._line_break(self._char):
    + 822            self._set_new_line()
      823
    - 824    @property
    - 825    def _text(self) -> str:
    - 826        return self.sql[self._start : self._current]
    - 827
    - 828    def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None:
    - 829        self._prev_token_line = self._line
    - 830        self._prev_token_comments = self._comments
    - 831        self._prev_token_type = token_type  # type: ignore
    - 832        self.tokens.append(
    - 833            Token(
    - 834                token_type,
    - 835                self._text if text is None else text,
    - 836                self._line,
    - 837                self._col,
    - 838                self._comments,
    - 839            )
    - 840        )
    - 841        self._comments = []
    - 842
    - 843        # If we have either a semicolon or a begin token before the command's token, we'll parse
    - 844        # whatever follows the command's token as a string
    - 845        if token_type in self.COMMANDS and (
    - 846            len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS
    - 847        ):
    - 848            start = self._current
    - 849            tokens = len(self.tokens)
    - 850            self._scan(lambda: self._peek == ";")
    - 851            self.tokens = self.tokens[:tokens]
    - 852            text = self.sql[start : self._current].strip()
    - 853            if text:
    - 854                self._add(TokenType.STRING, text)
    - 855
    - 856    def _scan_keywords(self) -> None:
    - 857        size = 0
    - 858        word = None
    - 859        chars: t.Optional[str] = self._text
    - 860        char = chars
    - 861        prev_space = False
    - 862        skip = False
    - 863        trie = self.KEYWORD_TRIE
    - 864
    - 865        while chars:
    - 866            if skip:
    - 867                result = 1
    - 868            else:
    - 869                result, trie = in_trie(trie, char.upper())  # type: ignore
    - 870
    - 871            if result == 0:
    - 872                break
    - 873            if result == 2:
    - 874                word = chars
    - 875            size += 1
    - 876            end = self._current - 1 + size
    - 877
    - 878            if end < self.size:
    - 879                char = self.sql[end]
    - 880                is_space = char in self.WHITE_SPACE
    + 824        self._col += i
    + 825        self._current += i
    + 826        self._end = self._current >= self.size  # type: ignore
    + 827        self._char = self.sql[self._current - 1]  # type: ignore
    + 828        self._peek = self.sql[self._current] if self._current < self.size else ""  # type: ignore
    + 829
    + 830    def _set_new_line(self) -> None:
    + 831        self._col = 1
    + 832        self._line += 1
    + 833
    + 834    @property
    + 835    def _text(self) -> str:
    + 836        return self.sql[self._start : self._current]
    + 837
    + 838    def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None:
    + 839        self._prev_token_line = self._line
    + 840        self._prev_token_comments = self._comments
    + 841        self._prev_token_type = token_type  # type: ignore
    + 842        self.tokens.append(
    + 843            Token(
    + 844                token_type,
    + 845                self._text if text is None else text,
    + 846                self._line,
    + 847                self._col,
    + 848                self._comments,
    + 849            )
    + 850        )
    + 851        self._comments = []
    + 852
    + 853        # If we have either a semicolon or a begin token before the command's token, we'll parse
    + 854        # whatever follows the command's token as a string
    + 855        if token_type in self.COMMANDS and (
    + 856            len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS
    + 857        ):
    + 858            start = self._current
    + 859            tokens = len(self.tokens)
    + 860            self._scan(lambda: self._peek == ";")
    + 861            self.tokens = self.tokens[:tokens]
    + 862            text = self.sql[start : self._current].strip()
    + 863            if text:
    + 864                self._add(TokenType.STRING, text)
    + 865
    + 866    def _scan_keywords(self) -> None:
    + 867        size = 0
    + 868        word = None
    + 869        chars = self._text
    + 870        char = chars
    + 871        prev_space = False
    + 872        skip = False
    + 873        trie = self.KEYWORD_TRIE
    + 874        single_token = char in self.SINGLE_TOKENS
    + 875
    + 876        while chars:
    + 877            if skip:
    + 878                result = 1
    + 879            else:
    + 880                result, trie = in_trie(trie, char.upper())  # type: ignore
      881
    - 882                if not is_space or not prev_space:
    - 883                    if is_space:
    - 884                        char = " "
    - 885                    chars += char
    - 886                    prev_space = is_space
    - 887                    skip = False
    - 888                else:
    - 889                    skip = True
    - 890            else:
    - 891                chars = None
    - 892
    - 893        if not word:
    - 894            if self._char in self.SINGLE_TOKENS:
    - 895                self._add(self.SINGLE_TOKENS[self._char])  # type: ignore
    - 896                return
    - 897            self._scan_var()
    - 898            return
    - 899
    - 900        if self._scan_string(word):
    - 901            return
    - 902        if self._scan_formatted_string(word):
    - 903            return
    - 904        if self._scan_comment(word):
    - 905            return
    + 882            if result == 0:
    + 883                break
    + 884            if result == 2:
    + 885                word = chars
    + 886            size += 1
    + 887            end = self._current - 1 + size
    + 888
    + 889            if end < self.size:
    + 890                char = self.sql[end]
    + 891                single_token = single_token or char in self.SINGLE_TOKENS
    + 892                is_space = char in self.WHITE_SPACE
    + 893
    + 894                if not is_space or not prev_space:
    + 895                    if is_space:
    + 896                        char = " "
    + 897                    chars += char
    + 898                    prev_space = is_space
    + 899                    skip = False
    + 900                else:
    + 901                    skip = True
    + 902            else:
    + 903                chars = " "
    + 904
    + 905        word = None if not single_token and chars[-1] not in self.WHITE_SPACE else word
      906
    - 907        self._advance(size - 1)
    - 908        self._add(self.KEYWORDS[word.upper()])
    - 909
    - 910    def _scan_comment(self, comment_start: str) -> bool:
    - 911        if comment_start not in self._COMMENTS:  # type: ignore
    - 912            return False
    + 907        if not word:
    + 908            if self._char in self.SINGLE_TOKENS:
    + 909                self._add(self.SINGLE_TOKENS[self._char])  # type: ignore
    + 910                return
    + 911            self._scan_var()
    + 912            return
      913
    - 914        comment_start_line = self._line
    - 915        comment_start_size = len(comment_start)
    - 916        comment_end = self._COMMENTS[comment_start]  # type: ignore
    - 917
    - 918        if comment_end:
    - 919            comment_end_size = len(comment_end)
    + 914        if self._scan_string(word):
    + 915            return
    + 916        if self._scan_formatted_string(word):
    + 917            return
    + 918        if self._scan_comment(word):
    + 919            return
      920
    - 921            while not self._end and self._chars(comment_end_size) != comment_end:
    - 922                self._advance()
    + 921        self._advance(size - 1)
    + 922        self._add(self.KEYWORDS[word.upper()])
      923
    - 924            self._comments.append(self._text[comment_start_size : -comment_end_size + 1])  # type: ignore
    - 925            self._advance(comment_end_size - 1)
    - 926        else:
    - 927            while not self._end and not self._line_break(self._peek):
    - 928                self._advance()
    - 929            self._comments.append(self._text[comment_start_size:])  # type: ignore
    - 930
    - 931        # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding.
    - 932        # Multiple consecutive comments are preserved by appending them to the current comments list.
    - 933        if comment_start_line == self._prev_token_line:
    - 934            self.tokens[-1].comments.extend(self._comments)
    - 935            self._comments = []
    - 936            self._prev_token_line = self._line
    + 924    def _scan_comment(self, comment_start: str) -> bool:
    + 925        if comment_start not in self._COMMENTS:  # type: ignore
    + 926            return False
    + 927
    + 928        comment_start_line = self._line
    + 929        comment_start_size = len(comment_start)
    + 930        comment_end = self._COMMENTS[comment_start]  # type: ignore
    + 931
    + 932        if comment_end:
    + 933            comment_end_size = len(comment_end)
    + 934
    + 935            while not self._end and self._chars(comment_end_size) != comment_end:
    + 936                self._advance()
      937
    - 938        return True
    - 939
    - 940    def _scan_number(self) -> None:
    - 941        if self._char == "0":
    - 942            peek = self._peek.upper()  # type: ignore
    - 943            if peek == "B":
    - 944                return self._scan_bits()
    - 945            elif peek == "X":
    - 946                return self._scan_hex()
    - 947
    - 948        decimal = False
    - 949        scientific = 0
    - 950
    - 951        while True:
    - 952            if self._peek.isdigit():  # type: ignore
    - 953                self._advance()
    - 954            elif self._peek == "." and not decimal:
    - 955                decimal = True
    - 956                self._advance()
    - 957            elif self._peek in ("-", "+") and scientific == 1:
    - 958                scientific += 1
    - 959                self._advance()
    - 960            elif self._peek.upper() == "E" and not scientific:  # type: ignore
    - 961                scientific += 1
    - 962                self._advance()
    - 963            elif self._peek.isidentifier():  # type: ignore
    - 964                number_text = self._text
    - 965                literal = []
    - 966
    - 967                while self._peek.strip() and self._peek not in self.SINGLE_TOKENS:  # type: ignore
    - 968                    literal.append(self._peek.upper())  # type: ignore
    - 969                    self._advance()
    - 970
    - 971                literal = "".join(literal)  # type: ignore
    - 972                token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal))  # type: ignore
    - 973
    - 974                if token_type:
    - 975                    self._add(TokenType.NUMBER, number_text)
    - 976                    self._add(TokenType.DCOLON, "::")
    - 977                    return self._add(token_type, literal)  # type: ignore
    - 978                elif self.IDENTIFIER_CAN_START_WITH_DIGIT:
    - 979                    return self._add(TokenType.VAR)
    + 938            self._comments.append(self._text[comment_start_size : -comment_end_size + 1])  # type: ignore
    + 939            self._advance(comment_end_size - 1)
    + 940        else:
    + 941            while not self._end and not self._line_break(self._peek):
    + 942                self._advance()
    + 943            self._comments.append(self._text[comment_start_size:])  # type: ignore
    + 944
    + 945        # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding.
    + 946        # Multiple consecutive comments are preserved by appending them to the current comments list.
    + 947        if comment_start_line == self._prev_token_line:
    + 948            self.tokens[-1].comments.extend(self._comments)
    + 949            self._comments = []
    + 950            self._prev_token_line = self._line
    + 951
    + 952        return True
    + 953
    + 954    def _scan_number(self) -> None:
    + 955        if self._char == "0":
    + 956            peek = self._peek.upper()  # type: ignore
    + 957            if peek == "B":
    + 958                return self._scan_bits()
    + 959            elif peek == "X":
    + 960                return self._scan_hex()
    + 961
    + 962        decimal = False
    + 963        scientific = 0
    + 964
    + 965        while True:
    + 966            if self._peek.isdigit():  # type: ignore
    + 967                self._advance()
    + 968            elif self._peek == "." and not decimal:
    + 969                decimal = True
    + 970                self._advance()
    + 971            elif self._peek in ("-", "+") and scientific == 1:
    + 972                scientific += 1
    + 973                self._advance()
    + 974            elif self._peek.upper() == "E" and not scientific:  # type: ignore
    + 975                scientific += 1
    + 976                self._advance()
    + 977            elif self._peek.isidentifier():  # type: ignore
    + 978                number_text = self._text
    + 979                literal = []
      980
    - 981                self._add(TokenType.NUMBER, number_text)
    - 982                return self._advance(-len(literal))
    - 983            else:
    - 984                return self._add(TokenType.NUMBER)
    - 985
    - 986    def _scan_bits(self) -> None:
    - 987        self._advance()
    - 988        value = self._extract_value()
    - 989        try:
    - 990            self._add(TokenType.BIT_STRING, f"{int(value, 2)}")
    - 991        except ValueError:
    - 992            self._add(TokenType.IDENTIFIER)
    - 993
    - 994    def _scan_hex(self) -> None:
    - 995        self._advance()
    - 996        value = self._extract_value()
    - 997        try:
    - 998            self._add(TokenType.HEX_STRING, f"{int(value, 16)}")
    - 999        except ValueError:
    -1000            self._add(TokenType.IDENTIFIER)
    -1001
    -1002    def _extract_value(self) -> str:
    -1003        while True:
    -1004            char = self._peek.strip()  # type: ignore
    -1005            if char and char not in self.SINGLE_TOKENS:
    -1006                self._advance()
    -1007            else:
    -1008                break
    -1009
    -1010        return self._text
    -1011
    -1012    def _scan_string(self, quote: str) -> bool:
    -1013        quote_end = self._QUOTES.get(quote)  # type: ignore
    -1014        if quote_end is None:
    -1015            return False
    -1016
    -1017        self._advance(len(quote))
    -1018        text = self._extract_string(quote_end)
    -1019        text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text  # type: ignore
    -1020        self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text)
    -1021        return True
    -1022
    -1023    # X'1234, b'0110', E'\\\\\' etc.
    -1024    def _scan_formatted_string(self, string_start: str) -> bool:
    -1025        if string_start in self._HEX_STRINGS:  # type: ignore
    -1026            delimiters = self._HEX_STRINGS  # type: ignore
    -1027            token_type = TokenType.HEX_STRING
    -1028            base = 16
    -1029        elif string_start in self._BIT_STRINGS:  # type: ignore
    -1030            delimiters = self._BIT_STRINGS  # type: ignore
    -1031            token_type = TokenType.BIT_STRING
    -1032            base = 2
    -1033        elif string_start in self._BYTE_STRINGS:  # type: ignore
    -1034            delimiters = self._BYTE_STRINGS  # type: ignore
    -1035            token_type = TokenType.BYTE_STRING
    -1036            base = None
    -1037        else:
    -1038            return False
    -1039
    -1040        self._advance(len(string_start))
    -1041        string_end = delimiters.get(string_start)
    -1042        text = self._extract_string(string_end)
    -1043
    -1044        if base is None:
    -1045            self._add(token_type, text)
    -1046        else:
    -1047            try:
    -1048                self._add(token_type, f"{int(text, base)}")
    -1049            except:
    -1050                raise RuntimeError(
    -1051                    f"Numeric string contains invalid characters from {self._line}:{self._start}"
    -1052                )
    + 981                while self._peek.strip() and self._peek not in self.SINGLE_TOKENS:  # type: ignore
    + 982                    literal.append(self._peek.upper())  # type: ignore
    + 983                    self._advance()
    + 984
    + 985                literal = "".join(literal)  # type: ignore
    + 986                token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal))  # type: ignore
    + 987
    + 988                if token_type:
    + 989                    self._add(TokenType.NUMBER, number_text)
    + 990                    self._add(TokenType.DCOLON, "::")
    + 991                    return self._add(token_type, literal)  # type: ignore
    + 992                elif self.IDENTIFIER_CAN_START_WITH_DIGIT:
    + 993                    return self._add(TokenType.VAR)
    + 994
    + 995                self._add(TokenType.NUMBER, number_text)
    + 996                return self._advance(-len(literal))
    + 997            else:
    + 998                return self._add(TokenType.NUMBER)
    + 999
    +1000    def _scan_bits(self) -> None:
    +1001        self._advance()
    +1002        value = self._extract_value()
    +1003        try:
    +1004            self._add(TokenType.BIT_STRING, f"{int(value, 2)}")
    +1005        except ValueError:
    +1006            self._add(TokenType.IDENTIFIER)
    +1007
    +1008    def _scan_hex(self) -> None:
    +1009        self._advance()
    +1010        value = self._extract_value()
    +1011        try:
    +1012            self._add(TokenType.HEX_STRING, f"{int(value, 16)}")
    +1013        except ValueError:
    +1014            self._add(TokenType.IDENTIFIER)
    +1015
    +1016    def _extract_value(self) -> str:
    +1017        while True:
    +1018            char = self._peek.strip()  # type: ignore
    +1019            if char and char not in self.SINGLE_TOKENS:
    +1020                self._advance()
    +1021            else:
    +1022                break
    +1023
    +1024        return self._text
    +1025
    +1026    def _scan_string(self, quote: str) -> bool:
    +1027        quote_end = self._QUOTES.get(quote)  # type: ignore
    +1028        if quote_end is None:
    +1029            return False
    +1030
    +1031        self._advance(len(quote))
    +1032        text = self._extract_string(quote_end)
    +1033        text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text  # type: ignore
    +1034        self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text)
    +1035        return True
    +1036
    +1037    # X'1234, b'0110', E'\\\\\' etc.
    +1038    def _scan_formatted_string(self, string_start: str) -> bool:
    +1039        if string_start in self._HEX_STRINGS:  # type: ignore
    +1040            delimiters = self._HEX_STRINGS  # type: ignore
    +1041            token_type = TokenType.HEX_STRING
    +1042            base = 16
    +1043        elif string_start in self._BIT_STRINGS:  # type: ignore
    +1044            delimiters = self._BIT_STRINGS  # type: ignore
    +1045            token_type = TokenType.BIT_STRING
    +1046            base = 2
    +1047        elif string_start in self._BYTE_STRINGS:  # type: ignore
    +1048            delimiters = self._BYTE_STRINGS  # type: ignore
    +1049            token_type = TokenType.BYTE_STRING
    +1050            base = None
    +1051        else:
    +1052            return False
     1053
    -1054        return True
    -1055
    -1056    def _scan_identifier(self, identifier_end: str) -> None:
    -1057        text = ""
    -1058        identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES
    -1059
    -1060        while True:
    -1061            if self._end:
    -1062                raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}")
    -1063
    -1064            self._advance()
    -1065            if self._char == identifier_end:
    -1066                if identifier_end_is_escape and self._peek == identifier_end:
    -1067                    text += identifier_end  # type: ignore
    -1068                    self._advance()
    -1069                    continue
    -1070
    -1071                break
    -1072
    -1073            text += self._char  # type: ignore
    -1074
    -1075        self._add(TokenType.IDENTIFIER, text)
    -1076
    -1077    def _scan_var(self) -> None:
    -1078        while True:
    -1079            char = self._peek.strip()  # type: ignore
    -1080            if char and char not in self.SINGLE_TOKENS:
    -1081                self._advance()
    -1082            else:
    -1083                break
    -1084        self._add(
    -1085            TokenType.VAR
    -1086            if self._prev_token_type == TokenType.PARAMETER
    -1087            else self.KEYWORDS.get(self._text.upper(), TokenType.VAR)
    -1088        )
    -1089
    -1090    def _extract_string(self, delimiter: str) -> str:
    -1091        text = ""
    -1092        delim_size = len(delimiter)
    -1093
    -1094        while True:
    -1095            if self._char in self._STRING_ESCAPES and (
    -1096                self._peek == delimiter or self._peek in self._STRING_ESCAPES
    -1097            ):
    -1098                if self._peek == delimiter:
    -1099                    text += self._peek  # type: ignore
    -1100                else:
    -1101                    text += self._char + self._peek  # type: ignore
    -1102
    -1103                if self._current + 1 < self.size:
    -1104                    self._advance(2)
    -1105                else:
    -1106                    raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}")
    -1107            else:
    -1108                if self._chars(delim_size) == delimiter:
    -1109                    if delim_size > 1:
    -1110                        self._advance(delim_size - 1)
    -1111                    break
    -1112
    -1113                if self._end:
    -1114                    raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}")
    -1115                text += self._char  # type: ignore
    -1116                self._advance()
    -1117
    -1118        return text
    +1054        self._advance(len(string_start))
    +1055        string_end = delimiters.get(string_start)
    +1056        text = self._extract_string(string_end)
    +1057
    +1058        if base is None:
    +1059            self._add(token_type, text)
    +1060        else:
    +1061            try:
    +1062                self._add(token_type, f"{int(text, base)}")
    +1063            except:
    +1064                raise RuntimeError(
    +1065                    f"Numeric string contains invalid characters from {self._line}:{self._start}"
    +1066                )
    +1067
    +1068        return True
    +1069
    +1070    def _scan_identifier(self, identifier_end: str) -> None:
    +1071        text = ""
    +1072        identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES
    +1073
    +1074        while True:
    +1075            if self._end:
    +1076                raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}")
    +1077
    +1078            self._advance()
    +1079            if self._char == identifier_end:
    +1080                if identifier_end_is_escape and self._peek == identifier_end:
    +1081                    text += identifier_end  # type: ignore
    +1082                    self._advance()
    +1083                    continue
    +1084
    +1085                break
    +1086
    +1087            text += self._char  # type: ignore
    +1088
    +1089        self._add(TokenType.IDENTIFIER, text)
    +1090
    +1091    def _scan_var(self) -> None:
    +1092        while True:
    +1093            char = self._peek.strip()  # type: ignore
    +1094            if char and char not in self.SINGLE_TOKENS:
    +1095                self._advance()
    +1096            else:
    +1097                break
    +1098        self._add(
    +1099            TokenType.VAR
    +1100            if self._prev_token_type == TokenType.PARAMETER
    +1101            else self.KEYWORDS.get(self._text.upper(), TokenType.VAR)
    +1102        )
    +1103
    +1104    def _extract_string(self, delimiter: str) -> str:
    +1105        text = ""
    +1106        delim_size = len(delimiter)
    +1107
    +1108        while True:
    +1109            if self._char in self._STRING_ESCAPES and (
    +1110                self._peek == delimiter or self._peek in self._STRING_ESCAPES
    +1111            ):
    +1112                if self._peek == delimiter:
    +1113                    text += self._peek  # type: ignore
    +1114                else:
    +1115                    text += self._char + self._peek  # type: ignore
    +1116
    +1117                if self._current + 1 < self.size:
    +1118                    self._advance(2)
    +1119                else:
    +1120                    raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}")
    +1121            else:
    +1122                if self._chars(delim_size) == delimiter:
    +1123                    if delim_size > 1:
    +1124                        self._advance(delim_size - 1)
    +1125                    break
    +1126
    +1127                if self._end:
    +1128                    raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}")
    +1129                text += self._char  # type: ignore
    +1130                self._advance()
    +1131
    +1132        return text
     
    @@ -6780,22 +6928,22 @@
    -
    754    def reset(self) -> None:
    -755        self.sql = ""
    -756        self.size = 0
    -757        self.tokens: t.List[Token] = []
    -758        self._start = 0
    -759        self._current = 0
    -760        self._line = 1
    -761        self._col = 1
    -762        self._comments: t.List[str] = []
    -763
    -764        self._char = None
    -765        self._end = None
    -766        self._peek = None
    -767        self._prev_token_line = -1
    -768        self._prev_token_comments: t.List[str] = []
    -769        self._prev_token_type = None
    +            
    764    def reset(self) -> None:
    +765        self.sql = ""
    +766        self.size = 0
    +767        self.tokens: t.List[Token] = []
    +768        self._start = 0
    +769        self._current = 0
    +770        self._line = 1
    +771        self._col = 1
    +772        self._comments: t.List[str] = []
    +773
    +774        self._char = None
    +775        self._end = None
    +776        self._peek = None
    +777        self._prev_token_line = -1
    +778        self._prev_token_comments: t.List[str] = []
    +779        self._prev_token_type = None
     
    @@ -6813,13 +6961,13 @@
    -
    771    def tokenize(self, sql: str) -> t.List[Token]:
    -772        """Returns a list of tokens corresponding to the SQL string `sql`."""
    -773        self.reset()
    -774        self.sql = sql
    -775        self.size = len(sql)
    -776        self._scan()
    -777        return self.tokens
    +            
    781    def tokenize(self, sql: str) -> t.List[Token]:
    +782        """Returns a list of tokens corresponding to the SQL string `sql`."""
    +783        self.reset()
    +784        self.sql = sql
    +785        self.size = len(sql)
    +786        self._scan()
    +787        return self.tokens
     
    diff --git a/sqlglot/__init__.py b/sqlglot/__init__.py index a9a220c..4a30008 100644 --- a/sqlglot/__init__.py +++ b/sqlglot/__init__.py @@ -47,7 +47,7 @@ if t.TYPE_CHECKING: T = t.TypeVar("T", bound=Expression) -__version__ = "11.3.3" +__version__ = "11.3.6" pretty = False """Whether to format generated SQL by default.""" diff --git a/sqlglot/dataframe/sql/column.py b/sqlglot/dataframe/sql/column.py index f45d467..609b2a4 100644 --- a/sqlglot/dataframe/sql/column.py +++ b/sqlglot/dataframe/sql/column.py @@ -67,10 +67,10 @@ class Column: return self.binary_op(exp.Mul, other) def __truediv__(self, other: ColumnOrLiteral) -> Column: - return self.binary_op(exp.FloatDiv, other) + return self.binary_op(exp.Div, other) def __div__(self, other: ColumnOrLiteral) -> Column: - return self.binary_op(exp.FloatDiv, other) + return self.binary_op(exp.Div, other) def __neg__(self) -> Column: return self.unary_op(exp.Neg) @@ -85,10 +85,10 @@ class Column: return self.inverse_binary_op(exp.Mul, other) def __rdiv__(self, other: ColumnOrLiteral) -> Column: - return self.inverse_binary_op(exp.FloatDiv, other) + return self.inverse_binary_op(exp.Div, other) def __rtruediv__(self, other: ColumnOrLiteral) -> Column: - return self.inverse_binary_op(exp.FloatDiv, other) + return self.inverse_binary_op(exp.Div, other) def __rmod__(self, other: ColumnOrLiteral) -> Column: return self.inverse_binary_op(exp.Mod, other) diff --git a/sqlglot/dialects/bigquery.py b/sqlglot/dialects/bigquery.py index ccdd1c9..0c2105b 100644 --- a/sqlglot/dialects/bigquery.py +++ b/sqlglot/dialects/bigquery.py @@ -214,11 +214,7 @@ class BigQuery(Dialect): ), } - INTEGER_DIVISION = False - class Generator(generator.Generator): - INTEGER_DIVISION = False - TRANSFORMS = { **generator.Generator.TRANSFORMS, # type: ignore **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES, # type: ignore diff --git a/sqlglot/dialects/clickhouse.py b/sqlglot/dialects/clickhouse.py index a78d4db..b553df2 100644 --- a/sqlglot/dialects/clickhouse.py +++ b/sqlglot/dialects/clickhouse.py @@ -56,8 +56,6 @@ class ClickHouse(Dialect): TABLE_ALIAS_TOKENS = {*parser.Parser.TABLE_ALIAS_TOKENS} - {TokenType.ANY} # type: ignore - INTEGER_DIVISION = False - def _parse_in( self, this: t.Optional[exp.Expression], is_global: bool = False ) -> exp.Expression: @@ -96,7 +94,6 @@ class ClickHouse(Dialect): class Generator(generator.Generator): STRUCT_DELIMITER = ("(", ")") - INTEGER_DIVISION = False TYPE_MAPPING = { **generator.Generator.TYPE_MAPPING, # type: ignore diff --git a/sqlglot/dialects/databricks.py b/sqlglot/dialects/databricks.py index 2e058e8..4ff3594 100644 --- a/sqlglot/dialects/databricks.py +++ b/sqlglot/dialects/databricks.py @@ -21,6 +21,7 @@ class Databricks(Spark): **Spark.Generator.TRANSFORMS, # type: ignore exp.DateAdd: generate_date_delta_with_unit_sql, exp.DateDiff: generate_date_delta_with_unit_sql, + exp.ToChar: lambda self, e: self.function_fallback_sql(e), } PARAMETER_TOKEN = "$" diff --git a/sqlglot/dialects/drill.py b/sqlglot/dialects/drill.py index afcf4d0..208e2ab 100644 --- a/sqlglot/dialects/drill.py +++ b/sqlglot/dialects/drill.py @@ -9,7 +9,6 @@ from sqlglot.dialects.dialect import ( create_with_partitions_sql, datestrtodate_sql, format_time_lambda, - no_pivot_sql, no_trycast_sql, rename_func, str_position_sql, @@ -136,16 +135,17 @@ class Drill(Dialect): exp.ILike: lambda self, e: f" {self.sql(e, 'this')} `ILIKE` {self.sql(e, 'expression')}", exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"), exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", - exp.Pivot: no_pivot_sql, exp.RegexpLike: rename_func("REGEXP_MATCHES"), exp.StrPosition: str_position_sql, exp.StrToDate: _str_to_date, + exp.Pow: rename_func("POW"), exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", exp.TimeStrToTime: timestrtotime_sql, exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), + exp.ToChar: lambda self, e: self.function_fallback_sql(e), exp.TryCast: no_trycast_sql, exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})", exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), diff --git a/sqlglot/dialects/duckdb.py b/sqlglot/dialects/duckdb.py index db79d86..43f538c 100644 --- a/sqlglot/dialects/duckdb.py +++ b/sqlglot/dialects/duckdb.py @@ -81,8 +81,21 @@ class DuckDB(Dialect): **tokens.Tokenizer.KEYWORDS, ":=": TokenType.EQ, "ATTACH": TokenType.COMMAND, - "CHARACTER VARYING": TokenType.VARCHAR, + "BINARY": TokenType.VARBINARY, + "BPCHAR": TokenType.TEXT, + "BITSTRING": TokenType.BIT, + "CHAR": TokenType.TEXT, + "CHARACTER VARYING": TokenType.TEXT, "EXCLUDE": TokenType.EXCEPT, + "INT1": TokenType.TINYINT, + "LOGICAL": TokenType.BOOLEAN, + "NUMERIC": TokenType.DOUBLE, + "SIGNED": TokenType.INT, + "STRING": TokenType.VARCHAR, + "UBIGINT": TokenType.UBIGINT, + "UINTEGER": TokenType.UINT, + "USMALLINT": TokenType.USMALLINT, + "UTINYINT": TokenType.UTINYINT, } class Parser(parser.Parser): @@ -115,6 +128,14 @@ class DuckDB(Dialect): "UNNEST": exp.Explode.from_arg_list, } + TYPE_TOKENS = { + *parser.Parser.TYPE_TOKENS, + TokenType.UBIGINT, + TokenType.UINT, + TokenType.USMALLINT, + TokenType.UTINYINT, + } + class Generator(generator.Generator): STRUCT_DELIMITER = ("(", ")") @@ -169,8 +190,14 @@ class DuckDB(Dialect): TYPE_MAPPING = { **generator.Generator.TYPE_MAPPING, # type: ignore - exp.DataType.Type.VARCHAR: "TEXT", + exp.DataType.Type.BINARY: "BLOB", + exp.DataType.Type.CHAR: "TEXT", + exp.DataType.Type.FLOAT: "REAL", + exp.DataType.Type.NCHAR: "TEXT", exp.DataType.Type.NVARCHAR: "TEXT", + exp.DataType.Type.UINT: "UINTEGER", + exp.DataType.Type.VARBINARY: "BLOB", + exp.DataType.Type.VARCHAR: "TEXT", } STAR_MAPPING = { diff --git a/sqlglot/dialects/hive.py b/sqlglot/dialects/hive.py index faed1cf..c4b8fa9 100644 --- a/sqlglot/dialects/hive.py +++ b/sqlglot/dialects/hive.py @@ -257,11 +257,7 @@ class Hive(Dialect): ), } - INTEGER_DIVISION = False - class Generator(generator.Generator): - INTEGER_DIVISION = False - TYPE_MAPPING = { **generator.Generator.TYPE_MAPPING, # type: ignore exp.DataType.Type.TEXT: "STRING", diff --git a/sqlglot/dialects/mysql.py b/sqlglot/dialects/mysql.py index 3531f59..a831235 100644 --- a/sqlglot/dialects/mysql.py +++ b/sqlglot/dialects/mysql.py @@ -301,8 +301,6 @@ class MySQL(Dialect): "READ ONLY", } - INTEGER_DIVISION = False - def _parse_show_mysql(self, this, target=False, full=None, global_=None): if target: if isinstance(target, str): @@ -435,7 +433,6 @@ class MySQL(Dialect): class Generator(generator.Generator): LOCKING_READS_SUPPORTED = True NULL_ORDERING_SUPPORTED = False - INTEGER_DIVISION = False TRANSFORMS = { **generator.Generator.TRANSFORMS, # type: ignore @@ -446,6 +443,7 @@ class MySQL(Dialect): exp.TableSample: no_tablesample_sql, exp.TryCast: no_trycast_sql, exp.DateAdd: _date_add_sql("ADD"), + exp.DateDiff: lambda self, e: f"DATEDIFF({self.format_args(e.this, e.expression)})", exp.DateSub: _date_add_sql("SUB"), exp.DateTrunc: _date_trunc_sql, exp.DayOfWeek: rename_func("DAYOFWEEK"), diff --git a/sqlglot/dialects/oracle.py b/sqlglot/dialects/oracle.py index 795bbeb..7028a04 100644 --- a/sqlglot/dialects/oracle.py +++ b/sqlglot/dialects/oracle.py @@ -4,7 +4,7 @@ import typing as t from sqlglot import exp, generator, parser, tokens, transforms from sqlglot.dialects.dialect import Dialect, no_ilike_sql, rename_func, trim_sql -from sqlglot.helper import csv +from sqlglot.helper import csv, seq_get from sqlglot.tokens import TokenType PASSING_TABLE_ALIAS_TOKENS = parser.Parser.TABLE_ALIAS_TOKENS - { @@ -75,6 +75,7 @@ class Oracle(Dialect): FUNCTIONS = { **parser.Parser.FUNCTIONS, # type: ignore "DECODE": exp.Matches.from_arg_list, + "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), } FUNCTION_PARSERS: t.Dict[str, t.Callable] = { @@ -82,8 +83,6 @@ class Oracle(Dialect): "XMLTABLE": _parse_xml_table, } - INTEGER_DIVISION = False - def _parse_column(self) -> t.Optional[exp.Expression]: column = super()._parse_column() if column: @@ -92,7 +91,6 @@ class Oracle(Dialect): class Generator(generator.Generator): LOCKING_READS_SUPPORTED = True - INTEGER_DIVISION = False TYPE_MAPPING = { **generator.Generator.TYPE_MAPPING, # type: ignore @@ -122,6 +120,7 @@ class Oracle(Dialect): exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", exp.Substring: rename_func("SUBSTR"), + exp.ToChar: lambda self, e: self.function_fallback_sql(e), } def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: diff --git a/sqlglot/dialects/postgres.py b/sqlglot/dialects/postgres.py index 7e7902c..d7cbac4 100644 --- a/sqlglot/dialects/postgres.py +++ b/sqlglot/dialects/postgres.py @@ -15,6 +15,7 @@ from sqlglot.dialects.dialect import ( trim_sql, ) from sqlglot.helper import seq_get +from sqlglot.parser import binary_range_parser from sqlglot.tokens import TokenType from sqlglot.transforms import delegate, preprocess @@ -219,6 +220,8 @@ class Postgres(Dialect): "~~*": TokenType.ILIKE, "~*": TokenType.IRLIKE, "~": TokenType.RLIKE, + "@>": TokenType.AT_GT, + "<@": TokenType.LT_AT, "BEGIN": TokenType.COMMAND, "BEGIN TRANSACTION": TokenType.BEGIN, "BIGSERIAL": TokenType.BIGSERIAL, @@ -260,7 +263,17 @@ class Postgres(Dialect): TokenType.HASH: exp.BitwiseXor, } - FACTOR = {**parser.Parser.FACTOR, TokenType.CARET: exp.Pow} + FACTOR = { + **parser.Parser.FACTOR, + TokenType.CARET: exp.Pow, + } + + RANGE_PARSERS = { + **parser.Parser.RANGE_PARSERS, # type: ignore + TokenType.DAMP: binary_range_parser(exp.ArrayOverlaps), + TokenType.AT_GT: binary_range_parser(exp.ArrayContains), + TokenType.LT_AT: binary_range_parser(exp.ArrayContained), + } class Generator(generator.Generator): LOCKING_READS_SUPPORTED = True @@ -299,6 +312,9 @@ class Postgres(Dialect): exp.DateDiff: _date_diff_sql, exp.LogicalOr: rename_func("BOOL_OR"), exp.Min: min_or_least, + exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"), + exp.ArrayContains: lambda self, e: self.binary(e, "@>"), + exp.ArrayContained: lambda self, e: self.binary(e, "<@"), exp.RegexpLike: lambda self, e: self.binary(e, "~"), exp.RegexpILike: lambda self, e: self.binary(e, "~*"), exp.StrPosition: str_position_sql, @@ -307,6 +323,7 @@ class Postgres(Dialect): exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)", exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", exp.TableSample: no_tablesample_sql, + exp.ToChar: lambda self, e: self.function_fallback_sql(e), exp.Trim: trim_sql, exp.TryCast: no_trycast_sql, exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})", diff --git a/sqlglot/dialects/redshift.py b/sqlglot/dialects/redshift.py index 22ef51c..dc881b9 100644 --- a/sqlglot/dialects/redshift.py +++ b/sqlglot/dialects/redshift.py @@ -29,6 +29,8 @@ class Redshift(Postgres): "NVL": exp.Coalesce.from_arg_list, } + CONVERT_TYPE_FIRST = True + def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: this = super()._parse_types(check_func=check_func) @@ -83,6 +85,9 @@ class Redshift(Postgres): exp.Matches: rename_func("DECODE"), } + # Redshift uses the POW | POWER (expr1, expr2) syntax instead of expr1 ^ expr2 (postgres) + TRANSFORMS.pop(exp.Pow) + def values_sql(self, expression: exp.Values) -> str: """ Converts `VALUES...` expression into a series of unions. diff --git a/sqlglot/dialects/snowflake.py b/sqlglot/dialects/snowflake.py index 6413f6d..9b159a4 100644 --- a/sqlglot/dialects/snowflake.py +++ b/sqlglot/dialects/snowflake.py @@ -16,6 +16,7 @@ from sqlglot.dialects.dialect import ( ) from sqlglot.expressions import Literal from sqlglot.helper import flatten, seq_get +from sqlglot.parser import binary_range_parser from sqlglot.tokens import TokenType @@ -111,7 +112,7 @@ def _parse_date_part(self): def _div0_to_if(args): cond = exp.EQ(this=seq_get(args, 1), expression=exp.Literal.number(0)) true = exp.Literal.number(0) - false = exp.FloatDiv(this=seq_get(args, 0), expression=seq_get(args, 1)) + false = exp.Div(this=seq_get(args, 0), expression=seq_get(args, 1)) return exp.If(this=cond, true=true, false=false) @@ -173,26 +174,33 @@ class Snowflake(Dialect): FUNCTIONS = { **parser.Parser.FUNCTIONS, "ARRAYAGG": exp.ArrayAgg.from_arg_list, + "ARRAY_CONSTRUCT": exp.Array.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), ), + "DATEDIFF": lambda args: exp.DateDiff( + 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), ), + "DECODE": exp.Matches.from_arg_list, "DIV0": _div0_to_if, "IFF": exp.If.from_arg_list, + "NULLIFZERO": _nullifzero_to_if, + "OBJECT_CONSTRUCT": parser.parse_var_map, + "RLIKE": exp.RegexpLike.from_arg_list, + "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), "TO_ARRAY": exp.Array.from_arg_list, + "TO_VARCHAR": exp.ToChar.from_arg_list, "TO_TIMESTAMP": _snowflake_to_timestamp, - "ARRAY_CONSTRUCT": exp.Array.from_arg_list, - "RLIKE": exp.RegexpLike.from_arg_list, - "DECODE": exp.Matches.from_arg_list, - "OBJECT_CONSTRUCT": parser.parse_var_map, "ZEROIFNULL": _zeroifnull_to_if, - "NULLIFZERO": _nullifzero_to_if, } FUNCTION_PARSERS = { @@ -218,12 +226,8 @@ class Snowflake(Dialect): RANGE_PARSERS = { **parser.Parser.RANGE_PARSERS, # type: ignore - TokenType.LIKE_ANY: lambda self, this: self._parse_escape( - self.expression(exp.LikeAny, this=this, expression=self._parse_bitwise()) - ), - TokenType.ILIKE_ANY: lambda self, this: self._parse_escape( - self.expression(exp.ILikeAny, this=this, expression=self._parse_bitwise()) - ), + TokenType.LIKE_ANY: binary_range_parser(exp.LikeAny), + TokenType.ILIKE_ANY: binary_range_parser(exp.ILikeAny), } ALTER_PARSERS = { @@ -232,8 +236,6 @@ class Snowflake(Dialect): "SET": lambda self: self._parse_alter_table_set_tag(), } - INTEGER_DIVISION = False - def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression: self._match_text_seq("TAG") parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction) @@ -266,7 +268,6 @@ class Snowflake(Dialect): class Generator(generator.Generator): PARAMETER_TOKEN = "$" - INTEGER_DIVISION = False MATCHED_BY_SOURCE = False TRANSFORMS = { @@ -289,6 +290,7 @@ class Snowflake(Dialect): exp.TimeStrToTime: timestrtotime_sql, exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), + exp.ToChar: lambda self, e: self.function_fallback_sql(e), exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), exp.UnixToTime: _unix_to_time_sql, exp.DayOfWeek: rename_func("DAYOFWEEK"), diff --git a/sqlglot/dialects/sqlite.py b/sqlglot/dialects/sqlite.py index fb99d49..ed7c741 100644 --- a/sqlglot/dialects/sqlite.py +++ b/sqlglot/dialects/sqlite.py @@ -92,6 +92,33 @@ class SQLite(Dialect): exp.GroupConcat: _group_concat_sql, } + def datediff_sql(self, expression: exp.DateDiff) -> str: + unit = expression.args.get("unit") + unit = unit.name.upper() if unit else "DAY" + + sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))" + + if unit == "MONTH": + sql = f"{sql} / 30.0" + elif unit == "YEAR": + sql = f"{sql} / 365.0" + elif unit == "HOUR": + sql = f"{sql} * 24.0" + elif unit == "MINUTE": + sql = f"{sql} * 1440.0" + elif unit == "SECOND": + sql = f"{sql} * 86400.0" + elif unit == "MILLISECOND": + sql = f"{sql} * 86400000.0" + elif unit == "MICROSECOND": + sql = f"{sql} * 86400000000.0" + elif unit == "NANOSECOND": + sql = f"{sql} * 8640000000000.0" + else: + self.unsupported("DATEDIFF unsupported for '{unit}'.") + + return f"CAST({sql} AS INTEGER)" + def fetch_sql(self, expression): return self.limit_sql(exp.Limit(expression=expression.args.get("count"))) diff --git a/sqlglot/dialects/teradata.py b/sqlglot/dialects/teradata.py index 06d5c6c..8bd0a0c 100644 --- a/sqlglot/dialects/teradata.py +++ b/sqlglot/dialects/teradata.py @@ -129,6 +129,7 @@ class Teradata(Dialect): TRANSFORMS = { **generator.Generator.TRANSFORMS, exp.Min: min_or_least, + exp.ToChar: lambda self, e: self.function_fallback_sql(e), } def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: diff --git a/sqlglot/dialects/tsql.py b/sqlglot/dialects/tsql.py index d07b083..371e888 100644 --- a/sqlglot/dialects/tsql.py +++ b/sqlglot/dialects/tsql.py @@ -248,7 +248,6 @@ class TSQL(Dialect): KEYWORDS = { **tokens.Tokenizer.KEYWORDS, - "BIT": TokenType.BOOLEAN, "DATETIME2": TokenType.DATETIME, "DATETIMEOFFSET": TokenType.TIMESTAMPTZ, "DECLARE": TokenType.COMMAND, @@ -283,19 +282,20 @@ class TSQL(Dialect): substr=seq_get(args, 0), position=seq_get(args, 2), ), - "ISNULL": exp.Coalesce.from_arg_list, "DATEADD": parse_date_delta(exp.DateAdd, unit_mapping=DATE_DELTA_INTERVAL), "DATEDIFF": parse_date_delta(exp.DateDiff, unit_mapping=DATE_DELTA_INTERVAL), "DATENAME": _format_time_lambda(exp.TimeToStr, full_format_mapping=True), "DATEPART": _format_time_lambda(exp.TimeToStr), + "EOMONTH": _parse_eomonth, + "FORMAT": _parse_format, "GETDATE": exp.CurrentTimestamp.from_arg_list, - "SYSDATETIME": exp.CurrentTimestamp.from_arg_list, "IIF": exp.If.from_arg_list, + "ISNULL": exp.Coalesce.from_arg_list, + "JSON_VALUE": exp.JSONExtractScalar.from_arg_list, "LEN": exp.Length.from_arg_list, "REPLICATE": exp.Repeat.from_arg_list, - "JSON_VALUE": exp.JSONExtractScalar.from_arg_list, - "FORMAT": _parse_format, - "EOMONTH": _parse_eomonth, + "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), + "SYSDATETIME": exp.CurrentTimestamp.from_arg_list, } VAR_LENGTH_DATATYPES = { @@ -421,7 +421,6 @@ class TSQL(Dialect): TYPE_MAPPING = { **generator.Generator.TYPE_MAPPING, # type: ignore - exp.DataType.Type.BOOLEAN: "BIT", exp.DataType.Type.INT: "INTEGER", exp.DataType.Type.DECIMAL: "NUMERIC", exp.DataType.Type.DATETIME: "DATETIME2", diff --git a/sqlglot/expressions.py b/sqlglot/expressions.py index 085871e..0c345b3 100644 --- a/sqlglot/expressions.py +++ b/sqlglot/expressions.py @@ -2656,12 +2656,17 @@ class DataType(Expression): BINARY = auto() VARBINARY = auto() INT = auto() + UINT = auto() TINYINT = auto() + UTINYINT = auto() SMALLINT = auto() + USMALLINT = auto() BIGINT = auto() + UBIGINT = auto() FLOAT = auto() DOUBLE = auto() DECIMAL = auto() + BIT = auto() BOOLEAN = auto() JSON = auto() JSONB = auto() @@ -2861,10 +2866,6 @@ class Div(Binary): pass -class FloatDiv(Binary): - pass - - class Overlaps(Binary): pass @@ -2971,6 +2972,10 @@ class Sub(Binary): pass +class ArrayOverlaps(Binary): + pass + + # Unary Expressions # (NOT a) class Unary(Expression): @@ -3135,6 +3140,11 @@ class Array(Func): is_var_len_args = True +# https://docs.snowflake.com/en/sql-reference/functions/to_char +class ToChar(Func): + arg_types = {"this": True, "format": False} + + class GenerateSeries(Func): arg_types = {"start": True, "end": True, "step": False} @@ -3156,8 +3166,12 @@ class ArrayConcat(Func): is_var_len_args = True -class ArrayContains(Func): - arg_types = {"this": True, "expression": True} +class ArrayContains(Binary, Func): + pass + + +class ArrayContained(Binary): + pass class ArrayFilter(Func): @@ -3272,6 +3286,7 @@ class DateSub(Func, TimeUnit): class DateDiff(Func, TimeUnit): + _sql_names = ["DATEDIFF", "DATE_DIFF"] arg_types = {"this": True, "expression": True, "unit": False} @@ -4861,19 +4876,19 @@ def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func: from sqlglot.dialects.dialect import Dialect - args = tuple(convert(arg) for arg in args) + converted = [convert(arg) for arg in args] kwargs = {key: convert(value) for key, value in kwargs.items()} parser = Dialect.get_or_raise(dialect)().parser() from_args_list = parser.FUNCTIONS.get(name.upper()) if from_args_list: - function = from_args_list(args) if args else from_args_list.__self__(**kwargs) # type: ignore + function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs) # type: ignore else: - kwargs = kwargs or {"expressions": args} + kwargs = kwargs or {"expressions": converted} function = Anonymous(this=name, **kwargs) - for error_message in function.error_messages(args): + for error_message in function.error_messages(converted): raise ValueError(error_message) return function diff --git a/sqlglot/generator.py b/sqlglot/generator.py index 4504e95..5936649 100644 --- a/sqlglot/generator.py +++ b/sqlglot/generator.py @@ -59,7 +59,6 @@ class Generator: exp.DateAdd: lambda self, e: self.func( "DATE_ADD", e.this, e.expression, e.args.get("unit") ), - exp.DateDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression), exp.TsOrDsAdd: lambda self, e: self.func( "TS_OR_DS_ADD", e.this, e.expression, e.args.get("unit") ), @@ -109,9 +108,6 @@ class Generator: # Whether or not create function uses an AS before the RETURN CREATE_FUNCTION_RETURN_AS = True - # 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 @@ -1571,7 +1567,7 @@ class Generator: ) else: this = "" - unit = expression.args.get("unit") + unit = self.sql(expression, "unit") unit = f" {unit}" if unit else "" return f"INTERVAL{this}{unit}" @@ -1757,25 +1753,17 @@ class Generator: return f"{self.sql(expression, 'this')} RESPECT NULLS" def intdiv_sql(self, expression: exp.IntDiv) -> str: - div = self.binary(expression, "/") - return self.sql(exp.Cast(this=div, to=exp.DataType.build("INT"))) + return self.sql( + exp.Cast( + this=exp.Div(this=expression.this, expression=expression.expression), + to=exp.DataType(this=exp.DataType.Type.INT), + ) + ) def dpipe_sql(self, expression: exp.DPipe) -> str: return self.binary(expression, "||") def div_sql(self, expression: exp.Div) -> str: - div = self.binary(expression, "/") - - if not self.INTEGER_DIVISION: - return self.sql(exp.Cast(this=div, to=exp.DataType.build("INT"))) - - return div - - def floatdiv_sql(self, expression: exp.FloatDiv) -> str: - if self.INTEGER_DIVISION: - this = exp.Cast(this=expression.this, to=exp.DataType.build("DOUBLE")) - return self.div_sql(exp.Div(this=this, expression=expression.expression)) - return self.binary(expression, "/") def overlaps_sql(self, expression: exp.Overlaps) -> str: @@ -1991,3 +1979,9 @@ class Generator: using = f"USING {self.sql(expression, 'using')}" on = f"ON {self.sql(expression, 'on')}" return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" + + def tochar_sql(self, expression: exp.ToChar) -> str: + if expression.args.get("format"): + self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function") + + return self.sql(exp.cast(expression.this, "text")) diff --git a/sqlglot/parser.py b/sqlglot/parser.py index 894d68e..90fdade 100644 --- a/sqlglot/parser.py +++ b/sqlglot/parser.py @@ -31,15 +31,20 @@ def parse_var_map(args): ) +def binary_range_parser( + expr_type: t.Type[exp.Expression], +) -> t.Callable[[Parser, t.Optional[exp.Expression]], t.Optional[exp.Expression]]: + return lambda self, this: self._parse_escape( + self.expression(expr_type, this=this, expression=self._parse_bitwise()) + ) + + class _Parser(type): def __new__(cls, clsname, bases, attrs): klass = super().__new__(cls, clsname, bases, attrs) klass._show_trie = new_trie(key.split(" ") for key in klass.SHOW_PARSERS) klass._set_trie = new_trie(key.split(" ") for key in klass.SET_PARSERS) - if not klass.INTEGER_DIVISION: - klass.FACTOR = {**klass.FACTOR, TokenType.SLASH: exp.FloatDiv} - return klass @@ -102,6 +107,7 @@ class Parser(metaclass=_Parser): } TYPE_TOKENS = { + TokenType.BIT, TokenType.BOOLEAN, TokenType.TINYINT, TokenType.SMALLINT, @@ -503,29 +509,15 @@ class Parser(metaclass=_Parser): RANGE_PARSERS = { TokenType.BETWEEN: lambda self, this: self._parse_between(this), - TokenType.GLOB: lambda self, this: self._parse_escape( - self.expression(exp.Glob, this=this, expression=self._parse_bitwise()) - ), - TokenType.OVERLAPS: lambda self, this: self._parse_escape( - self.expression(exp.Overlaps, this=this, expression=self._parse_bitwise()) - ), + TokenType.GLOB: binary_range_parser(exp.Glob), + TokenType.OVERLAPS: binary_range_parser(exp.Overlaps), TokenType.IN: lambda self, this: self._parse_in(this), TokenType.IS: lambda self, this: self._parse_is(this), - TokenType.LIKE: lambda self, this: self._parse_escape( - self.expression(exp.Like, this=this, expression=self._parse_bitwise()) - ), - TokenType.ILIKE: lambda self, this: self._parse_escape( - self.expression(exp.ILike, this=this, expression=self._parse_bitwise()) - ), - TokenType.IRLIKE: lambda self, this: self.expression( - exp.RegexpILike, this=this, expression=self._parse_bitwise() - ), - TokenType.RLIKE: lambda self, this: self.expression( - exp.RegexpLike, this=this, expression=self._parse_bitwise() - ), - TokenType.SIMILAR_TO: lambda self, this: self.expression( - exp.SimilarTo, this=this, expression=self._parse_bitwise() - ), + TokenType.LIKE: binary_range_parser(exp.Like), + TokenType.ILIKE: binary_range_parser(exp.ILike), + TokenType.IRLIKE: binary_range_parser(exp.RegexpILike), + TokenType.RLIKE: binary_range_parser(exp.RegexpLike), + TokenType.SIMILAR_TO: binary_range_parser(exp.SimilarTo), } PROPERTY_PARSERS = { @@ -707,7 +699,7 @@ class Parser(metaclass=_Parser): STRICT_CAST = True - INTEGER_DIVISION = True + CONVERT_TYPE_FIRST = False __slots__ = ( "error_level", @@ -2542,7 +2534,7 @@ class Parser(metaclass=_Parser): def _parse_type(self) -> t.Optional[exp.Expression]: if self._match(TokenType.INTERVAL): - return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_var()) + return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_field()) index = self._index type_token = self._parse_types(check_func=True) @@ -3285,15 +3277,19 @@ class Parser(metaclass=_Parser): def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: to: t.Optional[exp.Expression] - this = self._parse_column() + this = self._parse_bitwise() if self._match(TokenType.USING): to = self.expression(exp.CharacterSet, this=self._parse_var()) elif self._match(TokenType.COMMA): - to = self._parse_types() + to = self._parse_bitwise() else: to = None + # Swap the argument order if needed to produce the correct AST + if self.CONVERT_TYPE_FIRST: + this, to = to, this + return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) def _parse_position(self, haystack_first: bool = False) -> exp.Expression: diff --git a/sqlglot/tokens.py b/sqlglot/tokens.py index 5f4b77d..053bbdd 100644 --- a/sqlglot/tokens.py +++ b/sqlglot/tokens.py @@ -46,10 +46,13 @@ class TokenType(AutoName): HASH_ARROW = auto() DHASH_ARROW = auto() LR_ARROW = auto() + LT_AT = auto() + AT_GT = auto() DOLLAR = auto() PARAMETER = auto() SESSION_PARAMETER = auto() NATIONAL = auto() + DAMP = auto() BLOCK_START = auto() BLOCK_END = auto() @@ -71,11 +74,16 @@ class TokenType(AutoName): BYTE_STRING = auto() # types + BIT = auto() BOOLEAN = auto() TINYINT = auto() + UTINYINT = auto() SMALLINT = auto() + USMALLINT = auto() INT = auto() + UINT = auto() BIGINT = auto() + UBIGINT = auto() FLOAT = auto() DOUBLE = auto() DECIMAL = auto() @@ -462,6 +470,7 @@ class Tokenizer(metaclass=_Tokenizer): "#>": TokenType.HASH_ARROW, "#>>": TokenType.DHASH_ARROW, "<->": TokenType.LR_ARROW, + "&&": TokenType.DAMP, "ALL": TokenType.ALL, "ALWAYS": TokenType.ALWAYS, "AND": TokenType.AND, @@ -630,6 +639,7 @@ class Tokenizer(metaclass=_Tokenizer): "WITHOUT TIME ZONE": TokenType.WITHOUT_TIME_ZONE, "APPLY": TokenType.APPLY, "ARRAY": TokenType.ARRAY, + "BIT": TokenType.BIT, "BOOL": TokenType.BOOLEAN, "BOOLEAN": TokenType.BOOLEAN, "BYTE": TokenType.TINYINT, diff --git a/tests/dialects/test_dialect.py b/tests/dialects/test_dialect.py index 69563cb..21f6be6 100644 --- a/tests/dialects/test_dialect.py +++ b/tests/dialects/test_dialect.py @@ -98,7 +98,7 @@ class TestDialect(Validator): "bigquery": "CAST(a AS BINARY)", "clickhouse": "CAST(a AS BINARY(4))", "drill": "CAST(a AS VARBINARY(4))", - "duckdb": "CAST(a AS BINARY(4))", + "duckdb": "CAST(a AS BLOB(4))", "mysql": "CAST(a AS BINARY(4))", "hive": "CAST(a AS BINARY(4))", "oracle": "CAST(a AS BLOB(4))", @@ -116,7 +116,7 @@ class TestDialect(Validator): write={ "bigquery": "CAST(a AS VARBINARY)", "clickhouse": "CAST(a AS VARBINARY(4))", - "duckdb": "CAST(a AS VARBINARY(4))", + "duckdb": "CAST(a AS BLOB(4))", "mysql": "CAST(a AS VARBINARY(4))", "hive": "CAST(a AS BINARY(4))", "oracle": "CAST(a AS BLOB(4))", @@ -1208,7 +1208,7 @@ class TestDialect(Validator): self.validate_all( "CREATE TABLE t (c CHAR, nc NCHAR, v1 VARCHAR, v2 VARCHAR2, nv NVARCHAR, nv2 NVARCHAR2)", write={ - "duckdb": "CREATE TABLE t (c CHAR, nc CHAR, v1 TEXT, v2 TEXT, nv TEXT, nv2 TEXT)", + "duckdb": "CREATE TABLE t (c TEXT, nc TEXT, v1 TEXT, v2 TEXT, nv TEXT, nv2 TEXT)", "hive": "CREATE TABLE t (c CHAR, nc CHAR, v1 STRING, v2 STRING, nv STRING, nv2 STRING)", "oracle": "CREATE TABLE t (c CHAR, nc CHAR, v1 VARCHAR2, v2 VARCHAR2, nv NVARCHAR2, nv2 NVARCHAR2)", "postgres": "CREATE TABLE t (c CHAR, nc CHAR, v1 VARCHAR, v2 VARCHAR, nv VARCHAR, nv2 VARCHAR)", @@ -1249,7 +1249,7 @@ class TestDialect(Validator): self.validate_all( "CREATE TABLE t (b1 BINARY, b2 BINARY(1024), c1 TEXT, c2 TEXT(1024))", write={ - "duckdb": "CREATE TABLE t (b1 BINARY, b2 BINARY(1024), c1 TEXT, c2 TEXT(1024))", + "duckdb": "CREATE TABLE t (b1 BLOB, b2 BLOB(1024), c1 TEXT, c2 TEXT(1024))", "hive": "CREATE TABLE t (b1 BINARY, b2 BINARY(1024), c1 STRING, c2 STRING(1024))", "oracle": "CREATE TABLE t (b1 BLOB, b2 BLOB(1024), c1 CLOB, c2 CLOB(1024))", "postgres": "CREATE TABLE t (b1 BYTEA, b2 BYTEA(1024), c1 TEXT, c2 TEXT(1024))", diff --git a/tests/dialects/test_drill.py b/tests/dialects/test_drill.py index a196013..e41bd34 100644 --- a/tests/dialects/test_drill.py +++ b/tests/dialects/test_drill.py @@ -51,3 +51,16 @@ class TestDrill(Validator): "drill": "SELECT * FROM table(dfs.`test_data.xlsx`(type => 'excel', sheetName => 'secondSheet'))", }, ) + + def test_validate_pivot(self): + self.validate_all( + "SELECT * FROM (SELECT education_level, salary, marital_status, " + "EXTRACT(year FROM age(birth_date)) age FROM cp.`employee.json`) PIVOT (avg(salary) AS " + "avg_salary, avg(age) AS avg_age FOR marital_status IN ('M' married, 'S' single))", + write={ + "drill": "SELECT * FROM (SELECT education_level, salary, marital_status, " + "EXTRACT(year FROM age(birth_date)) AS age FROM cp.`employee.json`) " + "PIVOT(AVG(salary) AS avg_salary, AVG(age) AS avg_age FOR marital_status " + "IN ('M' AS married, 'S' AS single))" + }, + ) diff --git a/tests/dialects/test_duckdb.py b/tests/dialects/test_duckdb.py index a1a0090..c314163 100644 --- a/tests/dialects/test_duckdb.py +++ b/tests/dialects/test_duckdb.py @@ -21,10 +21,10 @@ class TestDuckDB(Validator): self.validate_all( "EPOCH_MS(x)", write={ - "bigquery": "UNIX_TO_TIME(CAST(x / 1000 AS INT64))", + "bigquery": "UNIX_TO_TIME(x / 1000)", "duckdb": "TO_TIMESTAMP(x / 1000)", "presto": "FROM_UNIXTIME(x / 1000)", - "spark": "FROM_UNIXTIME(CAST(x / 1000 AS INT))", + "spark": "FROM_UNIXTIME(x / 1000)", }, ) self.validate_all( @@ -120,28 +120,17 @@ class TestDuckDB(Validator): self.validate_identity("SELECT ROW(x, x + 1, y) FROM (SELECT 1 AS x, 'a' AS y)") self.validate_identity("SELECT (x, x + 1, y) FROM (SELECT 1 AS x, 'a' AS y)") self.validate_identity("SELECT a.x FROM (SELECT {'x': 1, 'y': 2, 'z': 3} AS a)") + self.validate_identity("ATTACH DATABASE ':memory:' AS new_database") self.validate_identity( "SELECT a['x space'] FROM (SELECT {'x space': 1, 'y': 2, 'z': 3} AS a)" ) + self.validate_all( "CREATE TABLE IF NOT EXISTS table (cola INT, colb STRING) USING ICEBERG PARTITIONED BY (colb)", write={ "duckdb": "CREATE TABLE IF NOT EXISTS table (cola INT, colb TEXT)", }, ) - - self.validate_all( - "COL::BIGINT[]", - write={ - "duckdb": "CAST(COL AS BIGINT[])", - "presto": "CAST(COL AS ARRAY(BIGINT))", - "hive": "CAST(COL AS ARRAY)", - "spark": "CAST(COL AS ARRAY)", - "postgres": "CAST(COL AS BIGINT[])", - "snowflake": "CAST(COL AS ARRAY)", - }, - ) - self.validate_all( "LIST_VALUE(0, 1, 2)", read={ @@ -212,7 +201,6 @@ class TestDuckDB(Validator): "spark": "x.`y`.`abc`", }, ) - self.validate_all( "QUANTILE(x, 0.5)", write={ @@ -222,14 +210,6 @@ class TestDuckDB(Validator): "spark": "PERCENTILE(x, 0.5)", }, ) - - self.validate_all( - "CAST(x AS DATE)", - write={ - "duckdb": "CAST(x AS DATE)", - "": "CAST(x AS DATE)", - }, - ) self.validate_all( "UNNEST(x)", read={ @@ -240,7 +220,6 @@ class TestDuckDB(Validator): "spark": "EXPLODE(x)", }, ) - self.validate_all( "1d", write={ @@ -248,13 +227,6 @@ class TestDuckDB(Validator): "spark": "1 AS d", }, ) - self.validate_all( - "CAST(1 AS DOUBLE)", - read={ - "hive": "1d", - "spark": "1d", - }, - ) self.validate_all( "POWER(CAST(2 AS SMALLINT), 3)", read={ @@ -351,8 +323,6 @@ class TestDuckDB(Validator): }, ) - self.validate_identity("ATTACH DATABASE ':memory:' AS new_database") - with self.assertRaises(UnsupportedError): transpile( "SELECT a FROM b PIVOT(SUM(x) FOR y IN ('z', 'q'))", @@ -372,13 +342,44 @@ class TestDuckDB(Validator): self.validate_identity("ARRAY(SELECT id FROM t)") def test_cast(self): + self.validate_identity("CAST(x AS REAL)") + self.validate_identity("CAST(x AS UINTEGER)") + self.validate_identity("CAST(x AS UBIGINT)") + self.validate_identity("CAST(x AS USMALLINT)") + self.validate_identity("CAST(x AS UTINYINT)") + self.validate_identity("CAST(x AS TEXT)") + + self.validate_all("CAST(x AS NUMERIC)", write={"duckdb": "CAST(x AS DOUBLE)"}) + self.validate_all("CAST(x AS CHAR)", write={"duckdb": "CAST(x AS TEXT)"}) + self.validate_all("CAST(x AS BPCHAR)", write={"duckdb": "CAST(x AS TEXT)"}) + self.validate_all("CAST(x AS STRING)", write={"duckdb": "CAST(x AS TEXT)"}) + self.validate_all("CAST(x AS INT1)", write={"duckdb": "CAST(x AS TINYINT)"}) + self.validate_all("CAST(x AS FLOAT4)", write={"duckdb": "CAST(x AS REAL)"}) + self.validate_all("CAST(x AS FLOAT)", write={"duckdb": "CAST(x AS REAL)"}) + self.validate_all("CAST(x AS INT4)", write={"duckdb": "CAST(x AS INT)"}) + self.validate_all("CAST(x AS INTEGER)", write={"duckdb": "CAST(x AS INT)"}) + self.validate_all("CAST(x AS SIGNED)", write={"duckdb": "CAST(x AS INT)"}) + self.validate_all("CAST(x AS BLOB)", write={"duckdb": "CAST(x AS BLOB)"}) + self.validate_all("CAST(x AS BYTEA)", write={"duckdb": "CAST(x AS BLOB)"}) + self.validate_all("CAST(x AS BINARY)", write={"duckdb": "CAST(x AS BLOB)"}) + self.validate_all("CAST(x AS VARBINARY)", write={"duckdb": "CAST(x AS BLOB)"}) + self.validate_all("CAST(x AS LOGICAL)", write={"duckdb": "CAST(x AS BOOLEAN)"}) + self.validate_all( + "CAST(x AS BIT)", + read={ + "duckdb": "CAST(x AS BITSTRING)", + }, + write={ + "duckdb": "CAST(x AS BIT)", + "tsql": "CAST(x AS BIT)", + }, + ) self.validate_all( "123::CHARACTER VARYING", write={ "duckdb": "CAST(123 AS TEXT)", }, ) - self.validate_all( "cast([[1]] as int[][])", write={ @@ -386,10 +387,34 @@ class TestDuckDB(Validator): "spark": "CAST(ARRAY(ARRAY(1)) AS ARRAY>)", }, ) - self.validate_all( "CAST(x AS DATE) + INTERVAL (7 * -1) DAY", read={"spark": "DATE_SUB(x, 7)"} ) + self.validate_all( + "CAST(1 AS DOUBLE)", + read={ + "hive": "1d", + "spark": "1d", + }, + ) + self.validate_all( + "CAST(x AS DATE)", + write={ + "duckdb": "CAST(x AS DATE)", + "": "CAST(x AS DATE)", + }, + ) + self.validate_all( + "COL::BIGINT[]", + write={ + "duckdb": "CAST(COL AS BIGINT[])", + "presto": "CAST(COL AS ARRAY(BIGINT))", + "hive": "CAST(COL AS ARRAY)", + "spark": "CAST(COL AS ARRAY)", + "postgres": "CAST(COL AS BIGINT[])", + "snowflake": "CAST(COL AS ARRAY)", + }, + ) def test_bool_or(self): self.validate_all( diff --git a/tests/dialects/test_postgres.py b/tests/dialects/test_postgres.py index 0881a89..c8dea95 100644 --- a/tests/dialects/test_postgres.py +++ b/tests/dialects/test_postgres.py @@ -71,6 +71,9 @@ class TestPostgres(Validator): ) def test_postgres(self): + self.validate_identity("SELECT ARRAY[1, 2, 3] @> ARRAY[1, 2]") + self.validate_identity("SELECT ARRAY[1, 2, 3] <@ ARRAY[1, 2]") + self.validate_identity("SELECT ARRAY[1, 2, 3] && ARRAY[1, 2]") self.validate_identity("$x") self.validate_identity("SELECT ARRAY[1, 2, 3]") self.validate_identity("SELECT ARRAY(SELECT 1)") @@ -114,40 +117,6 @@ class TestPostgres(Validator): self.validate_identity("x ~ 'y'") self.validate_identity("x ~* 'y'") - self.validate_all( - "1 / 2", - read={ - "drill": "1 / 2", - "duckdb": "1 / 2", - "postgres": "1 / 2", - "presto": "1 / 2", - "redshift": "1 / 2", - "sqlite": "1 / 2", - "teradata": "1 / 2", - "trino": "1 / 2", - "tsql": "1 / 2", - }, - write={ - "drill": "1 / 2", - "duckdb": "1 / 2", - "postgres": "1 / 2", - "presto": "1 / 2", - "redshift": "1 / 2", - "sqlite": "1 / 2", - "teradata": "1 / 2", - "trino": "1 / 2", - "tsql": "1 / 2", - "bigquery": "CAST(1 / 2 AS INT64)", - "clickhouse": "CAST(1 / 2 AS Int32)", - "databricks": "CAST(1 / 2 AS INT)", - "hive": "CAST(1 / 2 AS INT)", - "mysql": "CAST(1 / 2 AS INT)", - "oracle": "CAST(1 / 2 AS NUMBER)", - "snowflake": "CAST(1 / 2 AS INT)", - "spark": "CAST(1 / 2 AS INT)", - "starrocks": "CAST(1 / 2 AS INT)", - }, - ) self.validate_all( "SELECT (DATE '2016-01-10', DATE '2016-02-01') OVERLAPS (DATE '2016-01-20', DATE '2016-02-10')", write={ @@ -196,7 +165,7 @@ class TestPostgres(Validator): self.validate_all( "CREATE TABLE x (a UUID, b BYTEA)", write={ - "duckdb": "CREATE TABLE x (a UUID, b VARBINARY)", + "duckdb": "CREATE TABLE x (a UUID, b BLOB)", "presto": "CREATE TABLE x (a UUID, b VARBINARY)", "hive": "CREATE TABLE x (a UUID, b BINARY)", "spark": "CREATE TABLE x (a UUID, b BINARY)", diff --git a/tests/dialects/test_redshift.py b/tests/dialects/test_redshift.py index ad83b99..f5b8a43 100644 --- a/tests/dialects/test_redshift.py +++ b/tests/dialects/test_redshift.py @@ -5,6 +5,7 @@ class TestRedshift(Validator): dialect = "redshift" def test_redshift(self): + self.validate_all("CONVERT(INTEGER, x)", write={"redshift": "CAST(x AS INTEGER)"}) self.validate_all( 'create table "group" ("col" char(10))', write={ diff --git a/tests/dialects/test_snowflake.py b/tests/dialects/test_snowflake.py index c28c58d..1ac910c 100644 --- a/tests/dialects/test_snowflake.py +++ b/tests/dialects/test_snowflake.py @@ -18,48 +18,60 @@ class TestSnowflake(Validator): self.validate_identity("COMMENT IF EXISTS ON TABLE foo IS 'bar'") self.validate_all( - "1 / 2", + "TO_CHAR(x, y)", read={ - "bigquery": "1 / 2", - "clickhouse": "1 / 2", - "databricks": "1 / 2", - "hive": "1 / 2", - "mysql": "1 / 2", - "oracle": "1 / 2", - "snowflake": "1 / 2", - "spark": "1 / 2", - "starrocks": "1 / 2", - }, - write={ - "bigquery": "1 / 2", - "clickhouse": "1 / 2", - "databricks": "1 / 2", - "hive": "1 / 2", - "mysql": "1 / 2", - "oracle": "1 / 2", - "snowflake": "1 / 2", - "spark": "1 / 2", - "starrocks": "1 / 2", - "drill": "CAST(1 AS DOUBLE) / 2", - "duckdb": "CAST(1 AS DOUBLE) / 2", - "postgres": "CAST(1 AS DOUBLE PRECISION) / 2", - "presto": "CAST(1 AS DOUBLE) / 2", - "redshift": "CAST(1 AS DOUBLE PRECISION) / 2", - "sqlite": "CAST(1 AS REAL) / 2", - "teradata": "CAST(1 AS DOUBLE) / 2", - "trino": "CAST(1 AS DOUBLE) / 2", - "tsql": "CAST(1 AS DOUBLE) / 2", + "": "TO_CHAR(x, y)", + "snowflake": "TO_VARCHAR(x, y)", + }, + write={ + "": "CAST(x AS TEXT)", + "databricks": "TO_CHAR(x, y)", + "drill": "TO_CHAR(x, y)", + "oracle": "TO_CHAR(x, y)", + "postgres": "TO_CHAR(x, y)", + "snowflake": "TO_CHAR(x, y)", + "teradata": "TO_CHAR(x, y)", + }, + ) + self.validate_all( + "SQUARE(x)", + write={ + "bigquery": "POWER(x, 2)", + "clickhouse": "POWER(x, 2)", + "databricks": "POWER(x, 2)", + "drill": "POW(x, 2)", + "duckdb": "POWER(x, 2)", + "hive": "POWER(x, 2)", + "mysql": "POWER(x, 2)", + "oracle": "POWER(x, 2)", + "postgres": "x ^ 2", + "presto": "POWER(x, 2)", + "redshift": "POWER(x, 2)", + "snowflake": "POWER(x, 2)", + "spark": "POWER(x, 2)", + "sqlite": "POWER(x, 2)", + "starrocks": "POWER(x, 2)", + "trino": "POWER(x, 2)", + "tsql": "POWER(x, 2)", + }, + ) + self.validate_all( + "POWER(x, 2)", + read={ + "oracle": "SQUARE(x)", + "snowflake": "SQUARE(x)", + "tsql": "SQUARE(x)", }, ) self.validate_all( "DIV0(foo, bar)", write={ "snowflake": "IFF(bar = 0, 0, foo / bar)", - "sqlite": "CASE WHEN bar = 0 THEN 0 ELSE CAST(foo AS REAL) / bar END", - "presto": "IF(bar = 0, 0, CAST(foo AS DOUBLE) / bar)", + "sqlite": "CASE WHEN bar = 0 THEN 0 ELSE foo / bar END", + "presto": "IF(bar = 0, 0, foo / bar)", "spark": "IF(bar = 0, 0, foo / bar)", "hive": "IF(bar = 0, 0, foo / bar)", - "duckdb": "CASE WHEN bar = 0 THEN 0 ELSE CAST(foo AS DOUBLE) / bar END", + "duckdb": "CASE WHEN bar = 0 THEN 0 ELSE foo / bar END", }, ) self.validate_all( diff --git a/tests/dialects/test_sqlite.py b/tests/dialects/test_sqlite.py index a3e4cc9..f889445 100644 --- a/tests/dialects/test_sqlite.py +++ b/tests/dialects/test_sqlite.py @@ -89,6 +89,20 @@ class TestSQLite(Validator): write={"snowflake": "LEAST(x, y, z)"}, ) + def test_datediff(self): + self.validate_all( + "DATEDIFF(a, b, 'day')", + write={"sqlite": "CAST((JULIANDAY(a) - JULIANDAY(b)) AS INTEGER)"}, + ) + self.validate_all( + "DATEDIFF(a, b, 'hour')", + write={"sqlite": "CAST((JULIANDAY(a) - JULIANDAY(b)) * 24.0 AS INTEGER)"}, + ) + self.validate_all( + "DATEDIFF(a, b, 'year')", + write={"sqlite": "CAST((JULIANDAY(a) - JULIANDAY(b)) / 365.0 AS INTEGER)"}, + ) + def test_hexadecimal_literal(self): self.validate_all( "SELECT 0XCC", diff --git a/tests/fixtures/identity.sql b/tests/fixtures/identity.sql index 085880c..380d945 100644 --- a/tests/fixtures/identity.sql +++ b/tests/fixtures/identity.sql @@ -127,6 +127,8 @@ x ILIKE '%y%' ESCAPE '\' INTERVAL '1' day INTERVAL '1' MONTH INTERVAL '1 day' +INTERVAL '-1' CURRENT_DATE +INTERVAL '-31' CAST(GETDATE() AS DATE) INTERVAL 2 months INTERVAL (1 + 3) DAYS CAST('45' AS INTERVAL DAYS) diff --git a/tests/test_expressions.py b/tests/test_expressions.py index caa419e..ecbdc24 100644 --- a/tests/test_expressions.py +++ b/tests/test_expressions.py @@ -199,6 +199,8 @@ class TestExpressions(unittest.TestCase): ) def test_function_building(self): + self.assertEqual(exp.func("max", 1).sql(), "MAX(1)") + self.assertEqual(exp.func("max", 1, 2).sql(), "MAX(1, 2)") self.assertEqual(exp.func("bla", 1, "foo").sql(), "BLA(1, 'foo')") self.assertEqual(exp.func("COUNT", exp.Star()).sql(), "COUNT(*)") self.assertEqual(exp.func("bloo").sql(), "BLOO()") -- cgit v1.2.3